The laboratory activities provided on this wiki are considered open source and available for free use in non-commercial educational and academic settings. The only requirement is that they continue to retain the attribution to Analog Devices Inc.
Supplying them on the ADI wiki allows registered users to contribute to the materials posted here improving the content and keeping them up to date. Basic information and material on circuit simulationincluding tool links and usage information. Most of the labs are populated with LTspice resource files which contain the schematics of the circuits discussed at a specific topic.
This document outlines how labs might be altered for use with either M1K or M2K. The labs are generally written to be performed using just the components provided in the Analog Parts Kit, ADALPsupplied through ADI and our authorized distribution channels, however additional devices are sometimes needed additional information on component selection included below.
Oscilloscope Terminology. Learning to mathematically analyze circuits requires much study and practice. Typically, students practice by working through lots of sample problems and checking their answers against those provided by the textbook or the instructor. While this is good, there is a much better way. For successful circuit-building exercises, follow these steps:. Carefully measure and record all component values prior to circuit construction, choosing resistor values high enough to make damage to any active components unlikely.
Draw the schematic diagram for the circuit to be analyzed. Or perhaps print out the schematics shown in these lab activities.
Before applying power to your circuit check the accuracy of the circuit's construction, following each wire to each connection point, and verifying these elements one-by-one on the diagram.
Mathematically analyze the circuit, solving for all voltage and current values. Circuit simulation software such as LTSpice can be very useful for automating this process. If there are any substantial errors greater than a few percentcarefully check your circuit's construction against the diagram, then carefully re-calculate the values and re-measure. One way you can save time and reduce the possibility of error is to begin with a very simple circuit and incrementally add components to increase its complexity after each analysis, rather than building a whole new circuit for each practice activity.
Another time-saving technique is to re-use the same components in a variety of different circuit configurations. This way, you won't have to measure any component's value more than once. When performing lab tests, whether in college or industry, the lab report is vital for communicating the results in a logically ordered, readable fashion to others. To ensure readability, the report should be done using a word processor that can do text formatting, as well as math equation editing and drawing simple diagrams and schematics.
A spell checker is useful to avoid spelling mistakes. All sections of the lab should be organized in some logical fashion, for example in the order the steps were performed. Material in later sections should reference any related material in previous sections. In order to write a successful lab report it should contain the following key elements: objectives, pre lab calculations, equipment used, methods, results discussion, and end with conclusions.
The objectives section should be a brief one paragraph summary of the objectives of the lab experiments. In other words, this section should contain a short list of the steps to be performed as well as the expected test results. Any preparation that was done prior to the lab should be presented here. This section should contain a short list of tests to be performed as well as the expected results.Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.
Introducing the constant of proportionality, the resistance one arrives at the usual mathematical equation that describes this relationship: .
More specifically, Ohm's law states that the R in this relation is constant, independent of the current. However some materials do not obey Ohm's law, these are called non-ohmic. The law was named after the German physicist Georg Ohmwho, in a treatise published indescribed measurements of applied voltage and current through simple electrical circuits containing various lengths of wire.
Ohm explained his experimental results by a slightly more complex equation than the modern form above see History. In physics, the term Ohm's law is also used to refer to various generalizations of the law; for example the vector form of the law used in electromagnetics and material science:. This reformulation of Ohm's law is due to Gustav Kirchhoff. In Januarybefore Georg Ohm 's work, Henry Cavendish experimented with Leyden jars and glass tubes of varying diameter and length filled with salt solution.
He measured the current by noting how strong a shock he felt as he completed the circuit with his body. Cavendish wrote that the "velocity" current varied directly as the "degree of electrification" voltage. He did not communicate his results to other scientists at the time,  and his results were unknown until Maxwell published them in He found for a dry pile that the relationship between the two parameters was not proportional under certain meteorological conditions.
Ohm did his work on resistance in the years andand published his results in as the book Die galvanische Kette, mathematisch bearbeitet "The galvanic circuit investigated mathematically". For experiments, he initially used voltaic pilesbut later used a thermocouple as this provided a more stable voltage source in terms of internal resistance and constant voltage. He used a galvanometer to measure current, and knew that the voltage between the thermocouple terminals was proportional to the junction temperature.
He then added test wires of varying length, diameter, and material to complete the circuit. He found that his data could be modeled through the equation. From this, Ohm determined his law of proportionality and published his results. In terms of the length of the wire this becomes. Thus, Ohm's coefficients are. Ohm's law was probably the most important of the early quantitative descriptions of the physics of electricity. We consider it almost obvious today.
When Ohm first published his work, this was not the case; critics reacted to his treatment of the subject with hostility.
They called his work a "web of naked fancies"  and the German Minister of Education proclaimed that "a professor who preached such heresies was unworthy to teach science. These factors hindered the acceptance of Ohm's work, and his work did not become widely accepted until the s.
However, Ohm received recognition for his contributions to science well before he died. In the s, Ohm's law was known as such and was widely considered proved, and alternatives, such as " Barlow's law ", were discredited, in terms of real applications to telegraph system design, as discussed by Samuel F. Morse in The electron was discovered in by J. Thomsonand it was quickly realized that it is the particle charge carrier that carries electric currents in electric circuits. In the first classical model of electrical conduction, the Drude modelwas proposed by Paul Drudewhich finally gave a scientific explanation for Ohm's law.
In this model, a solid conductor consists of a stationary lattice of atoms ionswith conduction electrons moving randomly in it. A voltage across a conductor causes an electric fieldwhich accelerates the electrons in the direction of the electric field, causing a drift of electrons which is the electric current.
However the electrons collide with and scatter off of the atoms, which randomizes their motion, thus converting the kinetic energy added to the electron by the field to heat thermal energy. Using statistical distributions, it can be shown that the average drift velocity of the electrons, and thus the current, is proportional to the electric field, and thus the voltage, over a wide range of voltages.Introduce about electrical circuit lab equipment - Bangla -
The development of quantum mechanics in the s modified this picture somewhat, but in modern theories the average drift velocity of electrons can still be shown to be proportional to the electric field, thus deriving Ohm's law.
In Arnold Sommerfeld applied the quantum Fermi-Dirac distribution of electron energies to the Drude model, resulting in the free electron model.
A year later, Felix Bloch showed that electrons move in waves Bloch waves through a solid crystal lattice, so scattering off the lattice atoms as postulated in the Drude model is not a major process; the electrons scatter off impurity atoms and defects in the material.
The final successor, the modern quantum band theory of solids, showed that the electrons in a solid cannot take on any energy as assumed in the Drude model but are restricted to energy bands, with gaps between them of energies that electrons are forbidden to have.This is a lab event, so practice with previously built circuits, and using ammeters, voltmeters, and multimeters to take various measurements.
Know the eletrostaticsish stuff There might be multiple choice on this. KNOW resistor codes, and actually practice with real resistors, because sometimes its hard to tell the difference between colors, and its good to practice, or else you might mix up like brown and red or something. Don't just know stuff about parallel plate capacitance.
Actually work with capacitance in circuits, like equivalent capacitance.
Electronic circuit simulation
Split up the test. Trust your partner. You don't have enough time to work together. Buit when it comes to the lab part, you have to work together.
Have both people help take measurements, and then split up the calculations after the measurements are taken. Sign In Don't have an account? Start a Wiki. I'll add more later Basically, study everything on the sheet. It's helpful to get a physics book, and just do random complex circuits. Know theory and practice. Categories :. Cancel Save.Analog Devices is as passionate about educating the next generation of young circuit design engineers as it is about pioneering the next technological breakthrough.
The Active Learning Program is a platform where Analog Devices, working with leading educational institutions has created and deployed new hands on learning tools for the next generation of analog circuit design engineers.
The laboratory activities provided on these wiki pages are considered open source and available for free use in non-commercial educational and academic settings. The only requirement is that they continue to retain the attribution to Analog Devices Inc. Supplying them on the ADI wiki allows registered users to login and contribute to the materials posted here improving the content and keeping them up to date. This document outlines how the labs might be altered for use with M2K.
They are generally written to be performed with just the components provided in the Analog Parts Kit, ADALP, supplied through ADI distribution channels, however additional devices are sometimes needed. Other sources of components can of course be used.
Electric Circuit Analysis/Circuit Analysis - Lab1
Learning to mathematically analyze circuits requires much study and practice. Typically, students practice by working through lots of sample problems and checking their answers against those provided by the textbook or the instructor.
While this is good, there is a much better way. For successful circuit-building exercises, follow these steps:. Carefully measure and record all component values prior to circuit construction, choosing resistor values high enough to make damage to any active components unlikely. Draw the schematic diagram for the circuit to be analyzed. Or perhaps print out the schematics shown in these lab activities.
Digital Integrated Circuits (lab)
Before applying power to your circuit check the accuracy of the circuit's construction, following each wire to each connection point, and verifying these elements one-by-one on the diagram. Mathematically analyze the circuit, solving for all voltage and current values. Circuit simulation software such as LTSpice can be very useful for automating this process. If there are any substantial errors greater than a few percentcarefully check your circuit's construction against the diagram, then carefully re-calculate the values and re-measure.
One way you can save time and reduce the possibility of error is to begin with a very simple circuit and incrementally add components to increase its complexity after each analysis, rather than building a whole new circuit for each practice activity. Another time-saving technique is to re-use the same components in a variety of different circuit configurations. This way, you won't have to measure any component's value more than once. When performing lab tests, whether in college or industry, the lab report is vital for communicating the results in a logically ordered, readable fashion to others.
To ensure readability, the report should be done using a word processor that can do text formatting, as well as math equation editing and drawing simple diagrams and schematics. A spell checker is useful to avoid spelling mistakes. All sections of the lab should be organized in some logical fashion, for example in the order the steps were performed. Material in later sections should reference any related material in previous sections.The open-circuit testor no-load testis one of the methods used in electrical engineering to determine the no-load impedance in the excitation branch of a transformer.
The secondary of the transformer is left open-circuited. A wattmeter is connected to the primary. An ammeter is connected in series with the primary winding. A voltmeter is optional since the applied voltage is the same as the voltmeter reading. Rated voltage is applied at primary. If the applied voltage is normal voltage then normal flux will be set up. Since iron loss is a function of applied voltage, normal iron loss will occur.
Hence the iron loss is maximum at rated voltage. This maximum iron loss is measured using the wattmeter. Since the impedance of the series winding of the transformer is very small compared to that of the excitation branch, all of the input voltage is dropped across the excitation branch.
Thus the wattmeter measures only the iron loss. This test only measures the combined iron losses consisting of the hysteresis loss and the eddy current loss. Although the hysteresis loss is less than the eddy current loss, it is not negligible. The two losses can be separated by driving the transformer from a variable frequency source since the hysteresis loss varies linearly with supply frequency and the eddy current loss varies with the frequency squared.
Since the secondary of the transformer is open, the primary draws only no-load current, which will have some copper loss. This no-load current is very small and because the copper loss in the primary is proportional to the square of this current, it is negligible. There is no copper loss in the secondary because there is no secondary current. The secondary side of the transformer is left open, so there is no load on the secondary side.
Therefore, power is no longer transferred from primary to secondary in this approximation, and negligible current goes through the secondary windings. Since no current passes through the secondary windings, no magnetic field is created, which means zero current is induced on the primary side. This is crucial to the approximation because it allows us to ignore the series impedance since it is assumed that no current passes through this impedance.
The parallel shunt component on the equivalent circuit diagram is used to represent the core losses. These core losses come from the change in the direction of the flux and eddy currents. Eddy current losses are caused by currents induced in the iron due to the alternating flux.
In contrast to the parallel shunt component, the series component in the circuit diagram represents the winding losses due to the resistance of the coil windings of the transformer. Currentvoltage and power are measured at the primary winding to ascertain the admittance and power-factor angle. Another method of determining the series impedance of a real transformer is the short circuit test.
From Wikipedia, the free encyclopedia. Retrieved Transformer topics. Agbioeletric Balun Buchholz relay Bushing Center tap Circle diagram Condition monitoring of transformers Copper loss Dissolved gas analysis Electrical insulation paper Growler High-leg delta Induction regulator Leakage inductance Magnet wire Metadyne Open-circuit test Polarity Polychlorinated biphenyl Quadrature booster Resolver Resonant inductive coupling Severity factor Short-circuit test Stacking factor Synchro Tap changer Toroidal inductors and transformers Transformer oil Transformer oil testing Transformer utilization factor Vector group.
Amorphous metal transformer Austin transformer Autotransformer Buck—boost transformer Capacitor voltage transformer Distribution transformer Delta-wye transformer Energy efficient transformer Flyback transformer Grounding transformer Instrument transformer Current transformer Potential transformer Isolation transformer Linear variable differential transformer Pad-mounted transformer Parametric transformer Planar transformers Rotary transformer Rotary variable differential transformer Scott-T transformer Solid-state transformer Trigger transformer Variable-frequency transformer Zigzag transformer.
Categories : Electrical tests Electric transformers. Hidden categories: CS1 errors: external links. Namespaces Article Talk. Views Read Edit View history.We're making it easier for engineers, students, and hobbyists to design, analyze, build, and share circuits.
Electronic circuits are everywhere: from the watch on your wrist, and the fuel injection controller that powers your car, to the ballast driving the fluorescent lights above your desk. We're building the tools to help bring those products from concept to reality faster and easier — and perhaps even make the process more fun.
The practice of engineering has changed too: distributed teams collaborate across geography, technical subspecialities, and development platforms. We believe it's time for electronics design software to evolve as well: user-friendly tools leveraging the power of web-based distribution to make everything available everywhere, instantly. Iterate and collaborate: simulate, experiment, adjust, and share the results in just a few clicks. We can take the friction out of design and analysis, and simultaneously empower a new generation of engineers and hobbyists to build the systems that will shape the world of tomorrow.
If you would like to help build this vision, please take a look at Careers at CircuitLab. Not logged in.
Sign in or create an account. Zero-Friction Electronics Design.It was previously an event in, andwhen it was called Shock Value in Division B. Circuit Lab is a laboratory event which deals with the various components and properties of direct current DC circuits. Historically, the fields which have been tested in this event are DC circuit concepts and DC circuit analysis both theory and practice. Let's take an example of a battery, for now. When you touch a wire onto both ends of the battery at the same time, you have created a circuit.
It is generally ill advised to attempt this experiment. Not only will there be nothing to see, but short-circuiting a battery is potentially dangerous. What just happened?
Current flowed from one end of the battery to the other through the wire. Therefore, the definition of a circuit can simply be a never-ending looped pathway for electrons the battery counts as a pathway! There are two requirements which must be met to establish an electric circuit.
The first is clearly demonstrated by the above activity. There must be a closed conducting path which extends from the positive terminal to the negative terminal.
It is not enough that there is a closed connecting loop; the loop itself must extend from the positive terminal to the negative terminal of the electrochemical cell.
An electric circuit is like a water circuit at a water park. The flow of charge through the wires is similar to the flow of water through the pipes and along the slides of the water park.
If a pipe gets plugged or broken such that water cannot make a complete path through the circuit, then the flow of water will soon cease. In an electric circuit, all connections must be made and made by conducting materials capable of carrying a charge. Metallic materials are conductors and can be inserted into the circuit to successfully light the bulb.
There must be a closed conducting loop from the positive to the negative terminal in order to establish a circuit and to have a current. Current is rate of flow of charge past a particular point or region. In the context of electric circuits, charge is normally carried by electrons, so we consider current to be the rate of flow of electrons past a certain point in the circuit.
In most conductors, the atoms are bonded in such a way so that the electrons are able to move around the material without being localized to a particular atom. This allows the electrons to "flow. However, electricity or electric current moves at the speed of light.
To rationalize this, imagine a long, thin tube representing the wire filled with a single-file row of ball bearings representing the electrons. Pushing a ball bearing into the tube on one end causes another bearing to fall out the other end almost immediately.


The Pro Block 200 from Quilter is a single-channel 200W amplifier head designed for electric guitars. It features a 1/4″ Hi-Z input for your instrument, as well as an effects loop, two speaker outputs, and a direct-recording XLR output equalized to simulate the inherent sonic characteristics of speaker cones. Designed for both studio and stage applications, the Pro Blocks 200 offers a versatile, portable—and even rack-mountable—solid-state solution for guitar players of discerning taste and tone.
This amplifier head offers a gain knob, which, cranked to the right, produces increasing amounts of overdrive, while a built-in limiter helps maximize note-to-note sustain. Its Tri-Q control is essentially two equalizer controls in one, with twists to the left dictating a midrange cut suitable for chimey tones, and twists to the right generating a high-frequency/midrange boost for assertive lead tones. Furthermore, a high-cut knob dampens frequencies inhabiting the ultra-brightness range, resulting in a mellower speaker tone, while onboard reverb can be used to add spaciousness to the amp’s sound. A padded carrying case is also included.
• Direct recording out
• 4- and 8-Ohm speaker outputs


Expedition Explor is a powerful, lightweight, battery-powered portable PA system weighng just 15 pounds. With 200 watts of power and up to 12 hours of battery life, the Explor is the perfect solution for any mobile sound application. This all-in-one solution features a 3-channel mixer with connections for microphones, instruments, and line level devices. Bluetooth connectivity and an included Samson XPD wireless handheld microphone makes for a completely cord-free experience. The unique 3-way speaker system with 8 in. woofer, 3.5 in. midrange driver, and two 1 in. tweeters delivers crystal clear sound from any source. And with three positioning options and a speaker stand mount, the Expedition Explor is able to handle any mobile application.
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The Light-emitting diode (LED) seems to be everywhere, including in tiny keychain flashlights, conventional flashlights that emit powerful beams, general service lamps, replacement fixtures for commercial use, and portable work lights.
Tool manufacturers and lighting companies offer an impressive selection of work site lighting options, from flashlights to compact, lithium-ion powered work lights to light towers and strings of LED fixtures to illuminate large areas.
For this report, toolmakers Bosch, Makita and Milwaukee Tool, as well as lighting specialists Larson Electronics and Molex, discuss LED work lights and the benefits of using this technology.
Higher cost once was a barrier to increased LED lamp usage, but prices have lowered significantly. In addition, LED proponents argue that savings from longer life and reduced power consumption offset the cost difference.
About the technology
The biggest advantage LEDs have over traditional work lights is durability, said Jeremy Blankenship, lighting designer for Larson Electronics, maker of LED work lights that range from flashlights to LED light towers.
“With gas-burning lamps, there always is a glass lamp that can be broken due to rough handling, dropping the work light, impacts or vibration,” Blankenship said. “With filament-style traditional lamps, the filament itself is highly susceptible to impacts and vibrations that may sever the filament, which can result in premature lamp failure while the glass lamp remains intact. With LED solid-state technology, these recurring issues are resolved. LED work lamps make for a more reliable and stable work light, reducing maintenance and downtime within the work field due to lamp burnouts.”
LED technology is highly efficient and provides the same output at a lower wattage than traditional lighting fixtures, while providing an increased lamp life.
“Incandescent and halogen lamps are very inefficient and have a very short lamp life,” Blankenship said. “Fluorescent and compact fluorescent lamps are an improvement over incandescent and halogen lamps but still fall short when compared to LED lighting. With LED work lights, an operator is able to obtain the same light output or increased light output over the previous traditional lighting. These LED light sources decrease electrical consumption, which results in low electrical bills in line voltage work lamps and increased battery run time in rechargeable work lights. And, they obtain a light source that lasts 50,000-plus hours, which is double the lifespan of fluorescent, metal halide and high-pressure sodium lamps.”
Safety is another benefit.
“All light sources generate heat,” Blankenship said. “Traditional work lamps, such as the common 500W quartz work lights or 100W incandescent drop lights, reach high surface temperatures, which introduce a burn risk to anyone that allows prolonged skin contact with the light source, as well as a fire hazard if a flammable material is accidentally set too close to the light source for an extended period of time. While LED fixtures do produce heat, they are designed with heat sinks to properly disperse the heat.”
Beyond safety, high upfront costs have been a drawback for LEDs. However, LED prices have dropped.
“Within the last 5 to 10 years, LED technology has made significant advancements in efficiency for light output as well as price point,” Blankenship said. “This has allowed manufacturers of LED work lights to pass these cost savings to customers. With higher efficacy in light output for LED fixtures and higher efficiency in cost of manufacturing, LED work lights are becoming readily affordable to be used in the work place and [to] replace traditional work lamps.
“For now, LED lamps will still be more expensive than bottom-dollar incandescent lamps, but there are countless cost savings in the long run with the LED fixture, resulting in a return on investment and making the LED product the cheaper buy over a period of time,” he said.
Molex manufactures LED fixtures to illuminate large industrial environments for construction and maintenance.
“This is an exciting time for LED fixtures in industrial environments,” said Tom McCollum, Molex global product manager. “We still are in the early stages of adoption with new technology coming out every day, making LEDs more affordable, more efficient and with higher and higher levels of performance. Historically, we have had lighting designs that remain unchanged for years or decades, but those days are over.”
For industrial work environments, the primary benefit is that LED light sources are inherently more durable than traditional light sources, McCollum said.
“That increased durability and very long life for LED light sources means that the need to maintain LED fixtures is greatly diminished,” he said. “Instead of breaking an incandescent filament during rough handling or having to replace a traditional light source after just a few weeks or months of use, LED fixtures can withstand the rough handling and can last for years. Additionally, for fixtures of similar light output, LED versions run much more efficiently than fixtures with more traditional light sources, such as incandescent or various HID lamps. One LED series of products is rated Class I, Division 2, for use in hazardous environments.”
There are a few drawbacks, but most are easily rectified.
“LEDs tend to act as a point source but are usually focused in one direction [e.g., in an area that is less than 180 degrees] and thus may need to be managed to ensure emitted light is directed in the desired locations,” McCollum said. “Getting the fixture to produce bidirectional or omnidirectional or even tightly focused beams of light can be achieved by utilizing multiple LEDs within the fixture that are oriented in different directions or by using lenses and diffusers to direct the light in the desired directions.
“LED fixtures typically cost more up front yet save money over the years by minimizing maintenance and operating costs simply due to the reduced power consumption of the LED fixture,”.


Should I install the 32-bit or 64-bit V-Suite CORE client on my computer?
It is recommended that you install the 64-bit version. The 64-bit version will benefit memory intensive operations like displaying large models or several high-resolution point clouds, importing point clouds, generating point cloud regions and exporting high-resolution bitmaps.
The 64-bit version, however, does not support CAD import/export. CAD import/export is currently only supported in the 32-bit version.
However as of V-Suite CORE 2019, AutoCAD Export (only) is supported in both the 32-bit and 64-bit version.
V-Suite CORE 32-bit and the 64-bit client can be installed side-by-side on the same computer.


Sam Altman, CEO of OpenAI, recently shared exciting news about the upcoming release of GPT-5, the next generation of their generative AI model. Altman discussed the capabilities of GPT-4 and expressed confidence that GPT-5 will surpass its predecessor in terms of performance and functionality.
In a recent interview with AI researcher Lex Fridman, Altman provided insights into OpenAI’s AI technology and the company’s plans for the future. He highlighted the continuous improvement and innovation that drive OpenAI’s development of advanced AI models.
Altman confirmed that GPT-5 is set to be released later this year, introducing a significant upgrade to the existing GPT-4.5 Turbo model. Despite GPT-4’s current status as a leading large-language model, Altman believes that GPT-5 will elevate artificial intelligence to new heights.
Altman emphasized OpenAI’s commitment to gradual progress and transparency in deploying new models. By discussing and releasing earlier versions such as GPT-1, GPT-2, GPT-3, and GPT-4, the company aims to facilitate a smoother transition for the world to adapt to AI advancements.
Regarding the performance of GPT-4, Altman candidly remarked that it “kind of sucks” compared to his expectations for the upcoming GPT-5. He acknowledged the impressive capabilities of GPT-4 but underscored the exponential growth and potential of future AI models like GPT-5.
Altman also touched upon OpenAI’s plans to venture into robotics, highlighting the importance of combining AI with physical systems to create more versatile and capable machines. The company’s focus on hardware development, including custom chips for AI applications, aligns with its vision for advancing AI technology.
Furthermore, Altman addressed the recent board coup within OpenAI and expressed respect for colleague Ilya Sutskever, emphasizing their shared dedication to safe AI development. Altman’s reflections on the company’s evolution, decision-making processes, and transition from non-profit to for-profit status shed light on OpenAI’s strategic direction.
As OpenAI prepares for the launch of GPT-5 and continues to push the boundaries of AI technology, Altman’s insights provide a glimpse into the future of artificial intelligence. With a focus on democratizing AI and fostering innovation, OpenAI remains at the forefront of the AI industry’s evolution.


Carry Catcher Software Fixed
There have been some efforts to produce caricatures automatically or semi-automatically using computer graphics techniques. For example, a system proposed by Akleman et al. provides warping tools specifically designed toward rapidly producing caricatures. There are very few software programs designed specifically for automatically creating caricatures.
Carry Catcher Software
Record lossless video at 60 FPS ensuring every frame of content is saved, unlike 30-frame-per-second capture devices that only catch half the action. 60 FPS exactly matches the output of most computer video cards, which is great for recording the output from your PC, server, or POS station when creating software training and tutorial videos.
This USB capture card is capable of capturing lossless raw video making it compatible with Microsoft DirectShow. With raw video capture you can record video using your preferred third party DirectShow software such as Open Broadcaster Software (OBS).
The device also includes easy-to-use software that's compatible with NTSC and PAL systems, making it a must for professional video archiving applications where source media can change from project to project.
When you test the video capture device on your computer, make sure that the driver and capture software is installed on your system for your adapter. Some cards may be able to support third party software, however, support is limited. For more information, visit -capture-cards-third-party-software.
You can use a video capture device to capture or record an audio and video output signal to a connected computer. You can use USB, ExpressCard, or PCI Express technology to connect a video capture device to a computer system. StarTech.com has video capture devices that can capture audio and video from sources such as HDMI, DVI, VGA, S-Video, component, or composite. The captured signals are usually recorded with software that is included with the video capture device. Some software will also stream the captured signals online.
When looking at a video capture device that requires software to use, it is important to consider the operating system you want to use it on. You can find this on the product page under the Technical Specifications tab, which only lists supported operating systems.
\nAdobe Flash-based applications will no longer run as of January 12, 2021. As a result, the original StreamCatcher software is not currently functional and is no longer available for download. StarTech.com has replaced the previous Flash based software with the new StreamCatcher Pro which is now available for free under the Drivers/Downloads section of all supported capture device product pages. Please uninstall the original software and download/install the new StreamCatcher Pro to continue using your StarTech.com capture devices.
The Interceptor must pack computing power and sophisticated software into that tiny drone brain. Unlike the emerging driverless car, it has to understand its environment without the benefit of an internet connection to a massive mapping database.
But James Bond-style diversions, or even forcing a drone down, may prove insufficient if a craft is hovering above a crowd with something dangerous, like an explosive or poison. In such a situation, capturing and carrying away the enemy drone may be the best option, even if it is complex and expensive.
Bose Work configuration software for easy initial setup, available as an app or via web browser; and manage remotely with Bose Work Management software for single-device or enterprise- wide, multi-device changes, and to view device status
SignalVu-PC spectrum analyzer software allows engineers to analyze RF and vector signals to easily validate RF designs. Whether your design validation needs to include EMI/EMC pre-compliance testing, wideband radar, wireless LAN or frequency-hopping communications, the SignalVu-PC comprehensive suite of tools and application software can speed your time-to-insight by showing you the time-variant behavior of these signals.
SignalVu-PC spectrum analyzer software uses the same signal analysis capabilities found in the RSA5000 Series real-time signal analyzers but runs on your computer, tablet, or MSO/DPO Oscilloscope with Windows 7/8/10 Intel i5 or i7 64-bit operating system.
Once captured into memory, SignalVu-PC spectrum analyzer software provides detailed analysis in multiple domains. The spectrogram display (bottom left panel) shows the frequency of an LFM Pulse changing over time. By selecting the point in time in the spectrogram during the On time of the pulse, the chirp behavior can be seen as it sweeps from low to high (upper right panel).
SignalVu-PC spectrum analyzer software now supports EMC pre-compliance testing with EMCVu. EMCVu is an all-in-one software solution for EMC/EMI pre-compliance testing and troubleshooting that runs on your own PC. This gives you an easy, fast, accurate and affordable way to determine if your product designs are ready to submit to the test house for EMI/EMC radiation emission compliance testing. This is done through push button support for multiple standards, automated multiple measurement/multiple format reporting, ambient noise calibration and comparison, harmonic markers and faster scans using peak detector and spot measurements with quasi-peak and average detector failures.
The basic SignalVu-PC free spectrum analyzer software enables spectrum analysis, RF power and statistics, spectrograms, amplitude, frequency and phase vs. time, and analog modulation measurements. Applications are available for P25, Bluetooth, LTE, Mapping, Playback of recorded files, WLAN, settling time, audio, modulation, pulse, and OFDM analysis. Wideband satellite and point-to-point microwave links can be directly observed with SignalVu-PC spectrum analyzer software. Settling time measurements (SVT) are easy and automated. The user can select measurement bandwidth, tolerance bands, reference frequency (auto or manual), and establish up to 3 tolerance bands vs. time for Pass/Fail testing. Settling time may be referenced to external or internal trigger, and from the last settled frequency or phase.
First download the free SignalVu-PC spectrum analyzer software, then enable the application trials of your choice. Upgrades are available as a node locked or floating version. Node locked licenses let you move to a new PC three times. Floating licenses allow selected users to manage individual licenses. All trials are floating licenses.
SignalVu-PC spectrum analyzer software uses the same feature set and user interface that is found in the RSA5000, SPECMON, and RSA6000 Real-Time Spectrum and Signal Analyzers. Also, SignalVu-PC has the same feature set and user interface as the SignalVu options that are available on the MSO/DPO5000, DPO7000, MSO/DPO70000, and DPO70000SX Series Oscilloscopes.
A plagiarism checker uses advanced database software to scan for matches between your text and existing texts. They are used by universities to scan student assignments. There are also commercial plagiarism checkers you can use to check your own work before submitting.
The quality of the scanning software itself also varies widely. Many free checkers only recognize exact matches. If you paraphrased too closely or forgot to add a citation, these checkers are unlikely to flag it.
Here, the software scans sentence fragments, searching for structural similarities. Just like a real fingerprint, each fragment in your text should be completely unique, not matching existing document fingerprints. If there are matches, these checkers are able to identify them.
Plagiarism checkers work by using advanced database software to scan for matches between your text and existing texts. Their accuracy is determined by two factors: the algorithm (which recognizes the plagiarism) and the size of the database (with which your document is compared).
Stingrays, also known as "cell site simulators" or "IMSI catchers," are invasive cell phone surveillance devices that mimic cell phone towers and send out signals to trick cell phones in the area into transmitting their locations and identifying information. When used to track a suspect's cell phone, they also gather information about the phones of countless bystanders who happen to be nearby.
aTube Catcher also can burn in DVD/VCD your videos without use any other third party software. Among other features has a built-in Screen Recorder to capture what you see on your screen, even video chat sessions from Windows Live Messenger, Yahoo Messenger, DVD movies,Webinars, Online Meetings, etc, or just create video/audio presentations. All those features and more!. 100% Freeware, safe and clean!. Multilanguage interface.
In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).
In 1995, America Online (AOL) was the top internet service provider with millions of visitors logging in every day. Because it was so popular, it was targeted by phreaks and hackers with bad intentions. Since the beginning, hackers and those who traded pirated software used AOL and worked together, forming the warez community. It was this community that eventually made the first moves to conduct phishing attacks.


Sysco LABS Sri Lanka, the captive innovation center of Sysco Corporation, the global leader in restoration, recently hosted the second edition of its “PerfUp” series, focusing on the role of artificial intelligence in driving the performance engineering.
The second PerfUp session shed light on the use of artificial intelligence (AI) to improve the speed, accuracy and efficiency of many business processes and its application to improving software engineering practices. The session also elaborated on the potential of AI in improving engineering performance.
Asanka Vithanage, Associate Architect, Quality Engineering, Sysco LABS and Malith Jayasinghe, Vice President, Research and AI, WSO2 were the industry experts for this session.
Speakers explored topics such as how AI can help make better decisions about capacity, planning and scaling applications and the test environment, as well as analyzing performance results.
Sharing his expertise at the event, Asanga Vithanage said, “AI and ML capabilities can be used to optimize and improve performance testing platforms and practices. ML can be particularly useful in areas such as capacity planning, auto-scaling load generators, analyzing performance statistics, and predicting outcomes. Teams can start building performance execution platforms with current DevOps and observability capabilities and the data collected through these platforms can be used to build ML models. Subsequently, these models can help build smarter load generators. »
The PerfUp roundtables launched last year by Sysco LABS Sri Lanka aim to bring together Perf enthusiasts to develop best practices and share awareness on the performance engineering space and beyond.
Future PerfUp events aim to explore topics such as advanced performance engineering concepts, processes and tools, profiling, mobile performance engineering, in addition to success stories from leading engineering experts from industry performance.


GMI Outbreak Detector Evaluator Help
GMI Outbreak Detector Evaluator
The Global Microbial Identifier pathogen tracking initiative (GMI) develops a global resource of sequence data for identification and diagnostics of pathogenic organisms and infectious diseases. A worldwide network of shared genomic information for bacterial, viral, and parasitic microorganisms can be used widely, from establishing a global disease outbreak detection system to personalised medicine.
GMI Outbreak Detector Evaluator is an OpenEBench Benchmarking Workflow that evaluates the prediction of outbreaks based in phylogenetic information. When new predictions are submitted to the server using this workflow, several metrics, such as precision/recall or Robinson-Foulds distance are computed. This allows to benchmark the predicted outbreak against the rest of the participants currently engaged in GMI, allowing the user to visualize the results in 2D-plot or HeatMap format, and apply several classification methods in order to transform the results to table format.


This high-precision technology allows tracking the riding time of each participant.
The timing chip will be a new feature for the Rosarito-Ensenada Bike Ride and every participant
will be able to obtainan official time record. This information will be available as soon as you finish the ride.
You must register
Each participant must register their chip and personal data before May 1st, 2013.
Your time record will appear with name, age, team, etc.
Register your chip at http://www.timetrack.com.mx/Rosarito
What is a timing chip?
It is the newest tracking system: Bib-Tag. A high precision chip, decoders and modular mats are used to register data.
This system is approved by the IAAF and it is optimized for each sport event.
How does it work?
This chip is disposable and will be attached to each participant’s number. Mats are placed in both the Start
Line and the Finish Line. The timing chip sends a signal when the cyclists passes through the mats,
a decoder verifies that signal and it is processed through a data base.
- 1. Your participant number must be placed in the front of your bicycle using straps.
- 2. The timing chip must not make contact with the bicycle frame or any other metal object.
- 3. You must line up at the start line so that your chip is activated when you go pass it
and your time is tracked appropriately.
- 4. You must get across the finish line in order for your time to be tracked correctly.
Important notice: The omission of these guidelines will risk the correct time tracking of the participant.


Today, Global Positioning Systems (GPS) are all the rage. It is so easy to take trips with a GPS because the days of looking at maps and trying to figure out where you are at are gone. With a GPS system, you now can pinpoint your location and destination all with the touch of a button. You've seen many systems already in new vehicle purchases and you've also seen the hand held models. Now there is also the laptop GPS. With a laptop GPS, you can use it in your automobile through a cable or a Bluetooth. Another option is to use a CF and PCMCIA card. Let's look at these options a little closer. Bluetooth technology is wireless technology. This unit tends to cost more than a cable receiver. How does it work? Well you simply mount a Bluetooth GPS receiver in you vehicle. The Bluetooth will then send the data to your laptop. You will typically have an antenna to receive the signal. A CF and PCMCIA card will work by attaching the GPS receiver straight to the laptop. You can also use an external antenna. Some of the top rated laptop GPS units are:
Garmin Mobile PC with GPS 20x. Consumers have rated this unit as five stars. This system is a full-featured navigation system. It gives you a ton of maps and points of interest; it gives you turn by turn directions all with the touch of a button. Its maker Garmin is a trusted name in navigational systems. Should you stray off course, don't worry. This system will correct itself and get you back on track. This powerful little system for your laptop will cost you around $100. Lots of features at a great value makes this system a winner.
Garmin Mobile 10 GPS for Laptops. TheGarmin Mobile 10 is a GPS and Bluetooth wireless combination that comes with a portable receiver as well as navigational software. This system includes City Navigator NT, a software program that includes detailed street maps and points of interest. You can look up addresses or even services. This powerful system will give you turn by turn details and will always get you back on track when you've gotten off the beaten path. This unit runs around $150.
Earthmate GPS LT-40 Deluxe 2009. The Earthmate GPS LT-40 is at the top of its game in laptop GPS. Featuring the Teseo chipset from STMicroelectronics this system works on both PC's and MAC systems. Detailed maps on the Street Atlas will get you where you need to go. This powerful system will run you in the neighborhood of about $150.
ALK CoPilot Truck Laptop 9 Bluetooth GPS. This compact yet powerful system is designed for those big rig drivers, Semi-Truck operators. This amazing system is so smart that it actually keeps truck drivers on the proper roadways and off the roads semi-trucks are not allowed on. Since you'll be behind the wheel the voice features of this system make it a plus. Your eyes will stay focused on the road while this system directs you. It has many features like Exportable State Mileage Reports which make fuel tax reporting and accounting a lot easier. There are also HazMat Routing Options as well. This system will run you around $400 but if you're driving a truck to make a living then this system is worth it.
Deluo NavStick USB GPS with Microsoft Streets and Trips 2008 DVD. Compact GPS with a huge punch, that's what this system offers you. This small and light weight receiver will turn your laptop into a GPS unit that will put the days of getting lost behind you. This is one of the most compact ways to take the functionality of GPS with you. At around $130, this is a steal for such a huge convenience in a small package.
The world of GPS units is changing the way we travel. Taking the time to research and find the unit that will work for you is well worth it. Systems can range form less than $100 to well over $800. One thing is for sure. There is a system out there with your name on it.


National Science Foundation Research Experience for Teachers (RET)
This is a unique and experiential program focused on the water-energy nexus for Colorado STEM teachers at one of the world’s leading science and engineering schools. It will advance public knowledge and dialogue on the water-energy nexus through the integration of teachers, and ultimately their students, with cutting-edge water-energy research and technology. The program will provide six weeks of summer training and year-round support for 25-30 K-12 teachers over three years, with the intention of infusing current research in the water-energy nexus into K-12 classrooms
- To impact teacher participants by increasing their knowledge of water-energy nexus and by expanding their perspectives on science, engineering, and research
- To directly impact K-12 students’ learning, motivation, and engagement by increasing their teacher passion and awareness and by providing mentors from Mines in the K-12 classroom
- To impact K-12 STEM curricula via the creation of standards-based active learning lessons infused with current research which will be available through local, regional, national, and global forums
NEWS AND UPCOMING EVENTS
Environmental Engineering in Colorado STEM Classrooms
“Water-Energy Education for the Next Generation, a Colorado School of Mines Research Experience for Teachers sponsored by the National Science Foundation, kicked off its first summer training with nine teachers from Colorado public schools. The six-week summer program focused on impacting K-12 STEM curricula by infusing standards-based, active-learning lessons with current research in the water-energy nexus….”
To read the rest of the article, click here.
Mines offers water-energy training to school teachers
The Colorado School of Mines recently offered the inaugural summer training experience of the Water-Energy Education for the Next Generation (WE²NG) to nine Colorado public school teachers, giving them the understanding and educational tools to better teach STEM topics.
“This first cohort of teachers has set the bar high,” Mines assistant professor Andrea Blaine, who helped lead the program, said. “I believe that a systemic, sustained method of bringing real and exciting science problems into the classroom could revolutionize the way the next generation of scientists addresses critical issues.”
To read the rest of the article click here.


Talking about the difference between digital mixer and traditional mixer?
For those who specialize in audio production, mixing consoles will not be unfamiliar, and the types of mixing consoles are divided into analog and digital mixing consoles, and our collectively referred to as mixing consoles generally refer to analog Signal mixer. With the continuous update of the digital age, a large number of digital mixer products have appeared in the current mixer market. As for the difference between analog and digital mixers? And what are the characteristics and performance of digital mixers? ? The following is an analysis for everyone.
Audio Mixing Console (Audio Mixing Console) is a frequently used equipment in sound reinforcement systems and audiovisual recording. It has multiple inputs, and the sound signal of each channel can be processed separately, such as: can be amplified to compensate for the sound quality of treble, midrange, and bass, add flavor to the input sound, and spatially locate the sound source of the road, etc.; It can also mix various sounds, the mixing ratio is adjustable; it has a variety of outputs (including left and right stereo output, edit output, mixed mono output, monitor output, recording output, and various auxiliary outputs, etc.). The mixer plays a central role in many systems. It can not only create stereo, beautify the sound, but also suppress noise and control the volume. It is an indispensable machine for sound art processing.
The analog mixer is a conventional mixer, so it is called a mixer without emphasizing the word analog. Digital mixing console is the development of digital technology applied to mixing consoles. Mixing console is its essence and commonality, and digital is its characteristic. Therefore, the design concept of digital mixing console is completely equivalent to conventional mixing consoles, but due to digital technology Applied to the mixer, the digital mixer has a higher performance standard and more flexible in the realization of conventional functions, and the digital mixer has added some new functions and processing methods that cannot be realized by the analog mixer.
The key to the characteristics of digital mixing consoles lies in their digital nature. In summary, digital mixing consoles have the following unique functions and features:
1. Increase of audio processing unit
Some digital mixing consoles have units such as delay (device) and compressor (device) set in their branch and/or total channels. Such a setting cannot be achieved by a general analog mixer, which is equivalent to adding a lot of peripherals. The equipment is connected from the disconnect jack of the mixer, which makes the configuration of the audio system simple and more functions.
2. Database function of audio processing link
There are many existing standard processing mode programs set according to different sound sources, occasions, signal characteristics, etc., in the audio processing links such as equalization, compression, and in-camera effects. Although this is similar to the way of a fool camera, it is not suitable to copy it completely, because different program sources and scenes always have their particularities and cannot be the same, but the processing mode after all provides a rough processing method, which can be adjusted on this basis . In addition, the database is also equivalent to the role of textbooks and materials, providing parameters for various processing modes
3. Memory storage of each tuning link
In part, there is a certain amount of user program space in the links of equalization, compression, and internal effects, which can be used to store various user-adjusted processing parameters; in general, some digital mixers have a scene memory storage program space , Can be used to store the current status of various parameters including equalization, compression limit, in-camera effects, branch level, total level, etc. Therefore, there can be a relatively stable tuning standard for some fixed programs that are frequently performed. There are also digital mixers that can set the switching movement time of the partial push and/or the total push in different positions of the two scenes when the two storage scenes are switched, so as to produce the effect of automatic fade in and fade out.
4. Flexible combination and exchange of various links within the mixer
This kind of function is quite different in different mixers, but they are all realized by the flexible processing methods of digital signals. Such as the change of the level indication point, the two-input signal exchange channel, the direct grouping and mute grouping of sub-push, the duplication of the tuning control status of one branch to other branches, etc.
5. Multifunctional and intuitive display
Digital mixing consoles usually have a larger display screen to display different control interfaces, provide various status parameters, and visualize pattern displays.
6. Digital direct connection of digital audio equipment
The digital mixer can be connected to the audio equipment in the conventional analog signal input and output mode, and can also be connected to the digital audio equipment in the way of direct input and output of digital signals with optical cables and data lines. Because it is a digital signal, although only one optical cable, multiple input or output can be achieved, which expands the input and output channels.
7. MIDI function can be realized
The digital mixer can realize the function of MIDI, the so-called MIDI is the digital interface of electronic musical instrument (MIDI). The original intent of MIDI is only the interconnection between electronic musical instruments and between electronic musical instruments and computers. Now it also includes the interconnection between digital audio equipment, electronic musical instruments, and computers. Through the connection, the MIDI digital interface is used to transmit the keyboard key information reflecting the parameters of the music note, tone, rhythm, chord and other control information between the devices to achieve tasks such as composition and multi-track sound synthesis. Some professionals who are used to analog mixers often find it uncomfortable, because one of the disadvantages of digital mixers is that some function adjustments are not directly reflected on the panel like analog mixers, and some keys have different conditions. Different functions must be realized through the conversion interface. Some functions must have a calling process. Different models of digital mixers have different function calling operations. Therefore, if you are not familiar with this model of digital mixer during live tuning, problems will occur.
In fact, the digital mixer is not difficult to master. As mentioned above, the essence of the digital mixer is still the mixer. As long as you truly master the mixer, you can analyze the basic configuration of the mixer from the signal flow block diagram of the mixer. Connection, function and operation, then the digital characteristics of the mixer still have its own rules.


Kicad is an open source (GPL) software for the creation of electronic schematic diagrams and printed circuit board artwork.
With the project manager, Kicad, you can choose or create a project and launch Eeschema, Pcbnew, ....
This electronic workbench is free of charges and is open source (GPL). It is useful for everybody working in electronic design (schematic diagrams and Printed Board up to 16 layers).
This software (using WXWIDGETS) is MULTI-PLATFORM. It is running under LINUX and Windows (XP or 2000), for which updates are regularly provided.


Scan to CAD refers to the process of converting 3D scan data into CAD (computer-aided design) models.
- Data acquisition: A physical object is scanned using a 3D scanning device to capture point cloud data or create a 3D mesh. Common scanning methods include laser scanning, structured light scanning, and photogrammetry.
- Data processing: The raw scan data is processed and cleaned up. This involves removing noise, outliers, holes, and inconsistencies in the data.
- CAD modeling: The processed scan data is then imported into CAD software and used to generate an accurate 3D model. Modeling techniques like surface fitting and solid modeling are used to convert the scan data into proper CAD geometry.
- Design refinement: The CAD model created from the scan data usually requires some refinement and cleanup. CAD tools are used to smooth out surfaces, finalize details, and prepare the model for downstream use in engineering, manufacturing, etc.
In summary, scan to CAD leverages 3D scanning to rapidly generate CAD models for reverse engineering, quality inspection, part duplication, and more. It eliminates the need to manually measure or model parts from scratch.


ELECTRIC FISH ROADSHOW
HANDS ON SCIENCE OUTREACH
We offer a dynamic opportunity to connect the super power of weakly electric fish to the awesome power of the human body, while instilling the core value that EVERYONE can be a scientist everyday.
See electric signal output of both fish and their own bodies.
Hear a transposition of the electric signal with simple amplifier.
Participate in inquiry based learning through interactive lab notebook, becoming a scientist for a day.
Participants are able to actively explore, ask questions, and interact with animals and scientists. This actively connects concepts of environment and ecology, animal lifestyle, and human body.
INQUIRY BASED LEARNING
In a group setting, notebooks guide the experience, leaving room for student questions. Thanks to Dr. Katie Willis for notebook design.
GROUPS OR FAIRS
We are able to accommodate both individual groups and come-and-go fair type events.
Thanks for your interest in my research. Get in touch with any questions or comments regarding my work, Electric Fish Roadshow, or for applying to the Markham lab. I’d love to hear from you.
730 Van Vleet Oval
410 Richards Hall
Norman, OK 73019


FYI Tour of Mercer Science and EngineeringIn case anyone is interested in geeky stuff, join me tonight;
IEEE Tour of Mercer University Science and Engineering Building.
Tonight, Tuesday August 12th, 2008. 6:30pm at the Science and Engineering Building (located between the Engineering Building and Science Building on the South side of campus), meet in the lobby.
Tour will be conducted by Dr. Aaron Collins, Electrical Engineering Department Chair, and by Dr. Randall Peters, Physics Department Chair and will include a brief talk of seismic instruments installed during the construction of the building.


To support its many language features, the Delphi compiler uses a number of different data structures and machine code generation patterns. To help in understanding how the Delphi language features are implemented, to make it easier to recognize these patterns when debugging at the assembly level, and to make it possible to know what you're doing if you want to run-time patch code, I'll discuss some of these patters here.
The discussion follows the code patterns used by the D7, D2005 and D2006 [update: and D2007] Win32 compilers, but it should be more-or-less identical for other Win32 versions of Delphi.
Call to non-virtual method
The simplest case is when the compiler generates code for a call to a normal, non-virtual method or global routine. It uses the x86 CALL assembly instruction that takes an immediate relative offset as part of the instruction stream. This means that there is no overhead to calculate or fetch the target address from external memory. The address is part of the instruction encoding and the CPU will perform a perfect target address prediction. For instance:
TFoo = class
Foo := TFoo.Create;
The generated code for the Foo.Bar call is:
MOV EAX, [Foo] CALL <Relative offset of TFoo.Bar>
The first instruction loads the implicit self pointer into the EAX register (by default all Delphi code uses the register calling convention). The offset in the CALL instruction is relative to the current IP (Instruction Pointer) register. This means that the encoding of calls to the same routine in different call-sites will use different relative offsets. The main reason to use offsets instead of the more obvious absolute address is to reduce the need of patching if a module (for instance a DLL) is moved around in memory (or rather loaded at another address than its predefined base address).
Call to virtual method
Virtual methods is the basis of polymorphism in Delphi. The whole point of polymorphism is that descendent classes may override the method from a base class, implementing specific behaviour. At the implementation level, this means that the compiler can no longer hard-code a specific target address and the CPU no longer has the luxury of being able to perfectly predict the target address.
At the Win32 compiler implementation level, virtual methods are dispatched using a CALL instruction that indirects via the object’s VMT table. Each virtual method has at compile time a unique, static index or VMT offset associated with it. You cannot get at this offset directly using Pascal code, but BASM now has a VMTOFFSET directive to be able to call virtual methods in a clean way. Here is an example of calling a virtual method from BASM:
TMyClass = class
procedure Method; virtual;
procedure CallMyMethod(Instance: TMyClass);
MOV ECX, [EAX]
CALL [ECX + VMTOFFSET TMyClass.Method]
Instance := TMyClass.Create;
Here is an example of the machine code instructions involved in a virtual dispatch:
// EAX contains the object instance
MOV ECX, [EAX] // Get VMT pointer into ECX
CALL [ECX+0x014] // Virtual dispatch via VMT method slot
In the next blog entry we will delve further into the details of the virtual method table, including a hack how to call through the VMT explicitly. [Updated: Delphi syntax highlighting provided by DelphiDabbler PasH]


The breakaway One DRM can generate ZPL Frames, but is capable of much more. It can add C-able to the two front channels, add a lowpass filter and compander with phase and amplitude shapers. The breakaway One can be used to push, pull and balance signals from high-quality 2, 4, 8 or 12 channel down to lower-bit 48V operations for by-pass applications. It can be used to handle EMF, RF interference, and cordless telephone alarms that are picked up by the mic-line drivers.
The breakaway has the hardware codec and controls for the A2b RF/DTV signals. A2b In/Out provides a powerful DTV pass-through box. You can pass the DTV broadcast signals from the antenna to the TV or the antennas coax to the breakaway Soundcard.
Thus the breakaway One comes with a rather expensive solution on its own. However, if you want to go a step further, you can integrate the breakaway One into a teleconferencing system for 6, 10, or 16 participants. The breakaway One can handle DTV, DVB-T, ATSC, ETSI, etc. signals.
Im at a loss of what VX-1222HR can do. These are very expensive cards. I dont want to spend $400 or more. The dedicated editors are usually dong a mix by burning CDs. So the breakaway was designed to take the place of that editor. It does so with charm and style.
The Digigram Lynx 2SC is an update of the Lynx 1SC card. New features include a second 16 channel mixer program, an ASIO "DirectSound" or "WaveDirect" ASIO driver card, more presets, an internal streaming server, an additional virtual analog input, and several other small details. I will take the time to describe the unique features of this card. For the basic features and the menu command set the card is about the same. I find this a somewhat perplexing card, as the audio quality is surprisingly good and the user interface is simple. 3d9ccd7d82


Field Data Collection and Geotagging
Ever since the advent of the internet, there has been a marathon on data collection. The year 2009 was special in the sense that it marked the biggest transition of data collection from the analog era to the digital era.
There will be metadata that will be required regardless of the kind or form of data that is being collected. In the past, geotagging was only associated with latitude and longitude metrics. Now it can include bearing, distance accuracy, and name of the place. With the rich information that is provided by geotagging, there are different ways that information can be visually presented. There are a couple of ways that geotagging can help with data collection and some of them include:
Crowdsourcing:The advent of smartphones has allowed people to connect with each other in real-time. The different platforms are able to collect and distribute data from a location-specific standpoint. Such information is collected as metadata.
Smartphone browsing:The majority of people are now accessing the internet using mobile devices. Every hit on a website could be geotagged so as to help with monitoring internet trends and also provide insights and specific locations with regards to internet usage. With smartphones, the developers have control over how the apps will be used. Once users agree to the conditions, it will be easy to track specific data based on location metadata.
Geotagging is an important element to information collection in the current dispensation. There is an increase in smartphone users yearly who are consuming information from different geographical locations. With every image that is taken, there is the potential creation of geotagging as metadata. Such information could be used for different purposes with the consent of the owner of the photograph.


Knowledge Discovery in Spatial Databases
von Hans-Peter Kriegel
Both, the number and the size of spatial databases, such as geographic or medical databases, are rapidly growing because of the large amount of data obtained from satellite images, X-ray crystallography, computer tomography or other scientific equipment. This growth by far exceeds human capacities to analyze the databases in order to find implicit regularities, rules or clusters hidden in the data. Therefore, automated knowledge discovery becomes more and more important in spatial databases. Knowledge discovery in databases is the non-trivial process of discovering valid, novel, potentially useful, and ultimately understandable patterns from data. Typical tasks for knowledge discovery in spatial databases include clustering, classification, characterization and trend detection. The major differen ce between knowledge discovery in relational databases and in spatial databases is that attributes of the neighbors of some object of interest may have an influence on the object itself. Therefore, spatial knowledge discovery algorithms heavily depend on the efficient processing of neighborhood relations since the neighbors of many objects have to be investigated in a single run of a typical algorithm. Thus, providing general concepts for neighborhood relations as well as an efficient implementation of these concepts will allow a tight integration of spatial knowledge discovery algorithms with a spatial database management system. This will speed up both, the development and the execution of spatial knowledge discovery algorithms. For this purpose, we define a small set of database primitives, and we demonstrate that typical spatial knowledge discovery algorithms are well supported by the proposed database primitives. By implementing the database primitives on top of a commercial spatial database management system, we show the effectiveness and efficiency of our approach, experimentally as well as analytically.
(mittwoch, 15.9.99, 9:30 Uhr)
is a full professor for database systems in the Institute for Computer Science at the University of Munich. His research interests are in spatial database systems, particularly in query processing, performance issues, similarity search, high-dimensional indexing, and in parallel systems. Data Exploration using visualization led him to the area of knowledge discovery and data mining. Kriegel received his M.Sc. and Ph.D. in 1973 and 1976, respectively, from the University of Karlsruhe, Germany. Hans- Peter Kriegel has been chairman and program committee member in many international database conferences. He has published over 150 refereed conference and journal papers.


Interdisciplinary Postdoctoral Fellowship Position in Science and Art
The National Gallery of Art in Washington, DC, in conjunction with George Washington University, is offering the opportunity to join an interdisciplinary team consisting of image scientists, spectroscopists, conservation scientists, and conservators to develop novel remote sensing/imaging spectroscopy cameras and spectral imaging algorithms for identification and mapping of artists’ materials in support of the fields of art conservation and art history.
A new program at the National Science Foundation in Cultural Heritage Science funds this two-year position. The goal is to build, optimize, and validate a portable, high-sensitivity imaging system operating in the reflective near-infrared (1000 to 2500 nm) range. Its primary application will be to map and identify pigments and paint binders.
The successful candidate will have prior experience with either or both (1) spectral imaging systems and the associated image-processing techniques and (2) a basic understanding of electronic and vibrational spectroscopy of organic and inorganic pigments.Because of its interdisciplinary nature, the experience gained from this position will also be applicable in the biomedical, industrial, and earth science fields. The appointment will be made jointly between the Department of Electrical and Computer Engineering at George Washington University and the Scientific Research Department at the National Gallery of Art., The incumbent will gain experience at both locations.
Research Program in Imaging Science at the National Gallery of Art
The Gallery is developing and optimizing imaging based in-situ (non-invasive) tools to help address questions of material identification and construction methods in works of art. The spectral range and technologies being investigated are large and include:
- High spatial resolution hyperspectral and multispectral infrared imaging to improve visualizing preparatory sketches and compositional paint changes in paintings. See “Visible and Infrared Reflectance Imaging Spectroscopy of Paintings: Pigment Mapping and Improved Infrared Reflectography,” Optics for Arts, Architecture, and Archaeology II, Proceedings of the SPIE 7391 (2009), 739103-739103-8.
- Reflectance and luminescence imaging spectroscopy in the visible to infrared to help in identifying and mapping artist pigments and materials such as binders. See “Visible and Infrared Imaging Spectroscopy of Picasso's Harlequin Musician: Mapping and Identification of Artist Materials in Situ,”,Applied Spectroscopy 64 (2010) 6, 584.
- Spectral and spatial image processing algorithms. See “Towards Automatic Registration,” Computer Vision and Image Analysis of Art II, Proceedings of the SPIE 7869 (2011).
The results of these techniques are being evaluated by comparison to results obtained from more traditional analytical methods carried out by scientists in the Gallery’s well-equipped Scientific Research Department. The Gallery has several high performance visible and infrared monochrome and scanning hyperspectral cameras, a 2-D mechanical scanner, a diffuse reflectance optical fiber visible-to-infrared spectrometer, as well as transmission and luminescence spectrometers. There is also an active collaboration with the School of Engineering and Applied Science at George Washington University in the area of advanced image processing.
The fellow will receive training in image science, spectroscopy, and optical systems engineering as well as in the use of imaging spectroscopy in conservation science.
Responsibilites of the Fellow
The fellow will help in the designing, constructing, and testing of hyperspectral instrumentation and will develop analytical procedures and image processing tools as previously noted. The fellow will produce written reports, present research results at scientific and conservation meetings, and publish at least one paper in a scholarly scientific journal.
Candidates should have a PhD in one of the physical sciences or electrical engineering. The degree must have been obtained within the last three years. Candidates must be familiar with relevant scientific methods and instrumentation.
Experience is required in some or all of the following:
- Scientific programming (MATLAB, C, LabVIEW)
- Design, construction, evaluation of novel instrumentation and analysis of data
- Signal/image processing
A strong interest in art conservation is required. English-language skills and a proven record of research and writing ability are required. Fellowships are awarded without regard to age, sex, nationality, or race. Finalists who are not United States citizens must provide proof of their own health insurance coverage before starting the position.
Prospective applicants must submit three letters of recommendation, a CV, and a graduate-school transcript. Candidates should also submit a letter expressing why they are interested in the position and how their unique background makes them suitable for the fellowship. Candidates should indicate clearly in the cover letter that they are applying for the NSF Interdisciplinary Postdoctoral Fellowship. All applications must be submitted by February 1, 2012. Selection of a candidate is expected to be made by March 1, 2012.
Applications should be addressed to:
Michael Skalka, Conservation Administrator
Conservation Division, DCL
National Gallery of Art
2000B South Club Drive
Landover, Maryland 20785


A surveillance systems fully integrated with your home automation system provides optimum safety for your family and belongings. Accessing your cameras from anywhere in the world, receiving a notification when your door has been unlocked, and having the ability to let someone in when keys are forgotten allows you to fully supervise the safety of your home regardless of location.
The integration of a security system with complete home automation has never been as easy or convenient as it is with us. Our mission is to provide complete peace of mind - and to make it as easy as possible. Real world automation applications keep you protected even if you’re away from home. You can arm and protect your home with just the press of a button and monitor it from your computer, smart phone and tablet.


This week, Conserve School science students learned how to monitor lake water levels and collected data that will be used as part of the Wisconsin DNR’s citizen science program. Citizen science is an increasingly popular method of data collection in many environmental fields. Recruiting ordinary people to collect data for scientific research expands the sampling area and increases the amount of data that can be obtained. Citizen science also builds a network of informed citizens who will care about and advocate for environmental issues.
According to Science Teacher Robert Eady, there are about 15,000 lakes and 84,000 miles of river in the state of Wisconsin. The DNR needs the assistance of citizen scientists to monitor all this water, and Conserve School is able and willing to help. To measure the water level of Little Donahue Lake, students used a benchmark, a staff gauge, and either a transit, line, or laser level. Mastery of these tools provided them with the information necessary to calculate the water level now, but also the ability to make accurate measurements in the future. After Thanksgiving break, but before ice-over, the students will continue to record water levels of Little Donahue and other campus lakes.
-Graduate Fellow Maria Kopecky


Which Electric Motors Should You Get?
Vehicle electric motors, additionally called electrical motors, are among the most vital parts of any automobile, as they determine how the car steps. They are typically placed on the within the chassis, although some vehicles also have them mounted outside, on the back of the vehicle. A small internal electric electric motor is typically sufficient to power most fundamental vehicle functions, although more effective electric motors can be fitted to a lorry as required. Car engines and also electrical motors been available in 2 major kinds: inner as well as outside motors. The interior electric motor is the most basic as well as is usually placed on the inside of the chassis. It is connected to the engine using a collection of shafts, which after that go through the whole size of the engine. External motor engines are much larger and also are usually fitted to the back of the car. The fundamental feature of an interior or external electric motor is to offer the power for the car. The interior electric motor is commonly a single-stage engine, while outside electric motors can a number of phases. These electric motors are very reliable as well as can conveniently replace gas engines. The interior electric motor is likewise one of the most reliable, as it just needs to make a tiny beginning, as well as can running very long ranges without overheating. Interior motors are generally less costly than exterior ones, however they can not be tuned in addition to outside electric motors, making them unsuitable for usage on the track. Outside electric motors, on the various other hand, can be listened such a way that they are very receptive as well as very reliable, and also are really dependable also. An essential consideration when picking an electrical motor is exactly how the engine will be attached to the remainder of the car. An inner electric motor can only be linked into a cigarette lighter, yet an outside motor can link into a normal cigarette lighter or into an outlet. This makes the decision a little simpler. Nevertheless, lots of people pick the exterior type of motor because they are much more flexible. When considering the internal or outside motor, you additionally need to consider what function will finest fit your demands in your automobile’s inside, as the interior of the automobile is where you’ll invest most of your time, as well as where you’ll require to be comfy. If you choose a much more small internal electric motor, after that you’ll be able to fit the interior of your automobile with much less room. If you pick a big, bulky exterior motor, after that you might find that it uses up excessive space as well as does not fit as nicely right into your cars and truck. When you are picking an electrical motor, you have to see to it that the size of the motor appropriates for the dimensions of your car and that you’ll have the room available to enable the installation.


The SubCTest Demo project will implement the technology demonstrated at the end of the preceding Research for SMEs project SubCTest. The purpose of the SubCTest Demo project is to accelerate the pace of the technologies towards commercial maturity. The original project SubCTest, ‘Development of novel Non Destructive Testing (NDT) techniques and autonomous robots to be deployed by Remote Operating Vehicles (ROVs) for the sub-sea inspection of offshore structure welds’ was submitted in the call FP7-BSG-SME and received the grant agreement number 222174. This project was a two year project sponsored by the European Commission under the Seventh Framework (FP7) Research for the benefit of SMEs that started 1 September 2008 and completed in October 2010.
The SubCTest project was for the benefit of participating high technology SMEs that wanted to develop their existing Non Destructive Testing (NDT), robotic technologies and techniques into new offshore sub-sea inspection applications.
NDT technologies developed during SubCTest project have included a Long Range Ultrasonic Testing (LRUT) to inspect multiple welds from one inspection point, a Phased Array-Automated Ultrasonic Testing (PA-AUT) for volumetric weld inspection and an Alternating Current Field Measurement (ACFM) in order to detect surface braking fatigue cracks.
In the following figure, the hierarchy of the SubCTest system shows that only the LRUT subsystem will be considered for this new one SubCTestDEMO project.
In relation to the Technology Readiness Level of the LRUT system, illustrated in following figure, all the subsystems comprise of the Graphical User Interface. Instrumentation and Manipulator are located between TRL6 and TRL7, proving their application in a real environment.
More information about the previous SubCTest projects and the technologies described can be found in the following link:
As previously mentioned, the SubCTestDEMO project aims to further accelerate the pace of the technologies towards commercial maturity, regarding the developed LRUT system and a new EMAT system, targeting the technology readiness to level 9 with actual systems proven through successful mission operations.


European Quality Craftsmanship Made in America
March 20, 2016
Cadent itero digital impression technology
Cadent iTero has provided practical, cutting-edge technology and service support to ensure seamless integration of iTero into dental practices. With this technology, digital impressions has become the standard of care for all restorative procedures."
iTero technology utilizes a ground breaking intra-oral scanner to capture the 3D geometry of the tooth preparation area. The digital model is magnified and displayed while the patient is still in the chair. This enhanced visualization plus real-time analytical tools enable the clinician to make adjustments if necessary before completing the scanning process.
The digital model is then transmitted to a participating Cadent-partnering dental laboratory. The laboratory reviews the digital file and sends it electronically to Cadent's manufacturing facility for milling into the physical model. Cadent returns the physical model to the local dental laboratory. The laboratory applies the aesthetics and delivers the end-result- a beautiful, precise-fitting restoration-to the dentist all within standard service times.
Key iTero features include the following:
* Real-time, chairside display and feedback
* Intuitive interface equals short learning curve for dental professionals
* Short scan time (less than 3-5 minutes)
* Mobile cart with wireless communications
* Cadent milling process
* On-line consultation with lab
* Availability and Pricing Structure
iTero provides a novel digital impression solution that enables dentists to capture a digital model in the office, and then work with Cadent and the dental laboratory to create the actual restoration. The cost of ownership of the iTero digital impression system is less than 20 percent of the capital cost associated with first-generation digital impression system offerings. For additional information on iTero, please visit http://www.cadentitero.com


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Ended up getting the iPhone 4G — I had a 3G previously, and it really was starting to show its age — and it really is a nice phone. The highlights:
The ominous thing was that the iPhone 4G suffered from the same wireless problems as the iPad, manifesting as a couple of symptoms: a) unable to connect unless I was really close to the router, b) and really low signal strength.
I had been living with the wireless problems for a while, although they were extremely frustrating. Finally, a lucky break meant that I was able figure out the underlying cause (although to my chagrin I discovered later that other groups had identified this a long time ago). My iPhone 4G wouldn’t get onto the net, and even worse, every time I tried to get onto the net, it would kick my laptop off for a minute or two.
At that point, it became blindingly obvious – the phone was trying to use an expired lease, and as a result was conflicting with the laptop. Thirty seconds later I had set up static IPs for the iPad and iPhone 4G, and all my problems were solved. I could use the devices all over the house, there were no mysterious drops, signal strength was fine, and as a bonus, the mysterious wireless network failures that my laptop was having were solved.
Well, I really should have done my research — I could have found the answer to this much earlier.
Why did I think it had something to do with signal strength? I suspect that the 3.2/4.0 iOS somehow bases the signal strength indicator on DHCP status — where I was getting one bar before is now three. The alternate explanation is that I tended to use the devices in the more remote places at night, which happened to coincide with the DHCP conflict.
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Motorola Look10 - DroidX2
I worked within a small team of designers to create the 2010 look and feel of Motorola mobile devices. This included all of the skin piece and icons. After concepting was complete, I collaborated with engineers to get this design implemented as close to the initial designs as possible. This was a challenge due to the unique nature of the design which utilized a layering of multiple gradients and patterns.
As a Visual Designer, I worked with engineers to implement this design language as close to the original as possible. A major portion of this project was spent working with engineers to develop tools to allow me to quickly iterate this design production onto an actual device without having to wait for regular build cycles to see changes reflected.
This is the system I developed with the engineers to produce the patterns and gradients found in the new design language. The tools that the engineers created helped me to optimize this for the Droid X2 display. This took lots of iterations of tweeking colors to avoid banding and moire effects in the components that utilized this pattern.
**All screens are from the actual device avaiable to the public
These are the home screen widgets. I redlined and produced assets for all instances of the widgets. This was a challenge due to the high number of variations of content flowing into them and the user being able to determine the size of them. Sizing of homescreen widgets was done prior to it being adopted by the Android platform in subsequent releases.
The custom dialogs were a challenge to produce due to the unique pattern found in the header as well as in the lower button area.
Here you see the notification curtain. This was a custom implementation which displayed the unique pattern found throughout the design language.
This is the contacts screen which was a skinning of the native Contact Edit screen found in Android. You can see the new design language coming through on the button panel at the bottom as well as in the form fields
Contacts list screen based off stock Android with the design language applied.
App tray screen based off stock Android with the design language applied.
Text messaging screen based off stock Android with the design language applied.