ESL I Emergency Strobe Light
The Leland ESL I (Emergency Strobe Light) is the perfect outdoor and adventure survival tool. This very trusted, and long time tested Survival Strobe, uses a simple D Cell Battery to produce night and day piercing flashes at a rate of 50 to 60 per minute for 10 plus hours. After that, the rate will slowly decrease. In fact, our tests showed the Leland ESL I to produce bright flashes past 40 hours!
These US Coast Guard Approved Signal Strobe Lights utilize a simple XENON Strobe Module which produces a powerful flash of light which can be seen miles away. It all starts with the ESL I Signal Strobe's compact electronics package in which a capacitor pulls the energy from the battery and readies it to send it to the gas filled XENON bulb. The ESL I Signal Strobe Light will instantly mark your location up to three miles away!
In our own tests, the Leland Emergency Strobe Light surpassed other emergency strobe lights of the same class. Because it is USCG Approved, durable and waterproof, the ESL I Strobe Light will be there when you need it.
Be sure to look at our recreational strobe light combination, the ESL II (Emergency Strobe Light Flashlight).


Multi-Core, Speaker and Lighting Cables
|LMC (LIGTH MULTICORE) cables are characterized with their extreme flexibility and multi-core structure, suitable for professional voice and illumination
purposes as loudspeaker and light fixtures.
|1.||Inner Conductor||Electrolytic Stranded annealed copper wire (TS EN 60228, Class 5)|
|2.||Insulation||PVC, Acoording to VDE 0293, Black (White numbered) isolated cores are stranded in layers.|
|3.||Lay-Up||According to VDE 0293’e black (White numbered) insulated cores twisted in layers. From 3 cores yellow / green
line drain has core. Self-fusing tape wrapped over the fixed.
|4.||Outer Sheath||Flexible PVC, Mattete Grey|
|Cross Section||1,5 mm² / 2,5 mm²|
|Insulated diameter||2,35 / 3,0|
|Temperature Range||-30 °C …. +70 °C|
|Conductor Resistance (Ом/км)||<13,3 / <7,3|
|Operating Voltage||300/500 V|
|Test Voltage||2500 V|


Mr O Connor’s class has been electric the last few weeks! They have been doing lots of science experiments and had a lot of fun in the process! They were looking specifically at electricity experiments; They tested different conductors of electricity and demonstrated how static electricity works. They also participated in a very creative art workshop last week where they constructed and designed fish! They also dress dressed up for World Book Day 2022 and many famous characters featured! Check out a snapshot of some of these activities below!


PTZOptics Producer Kit
“Getting Started Video Guide”
Step 1 – The first thing to do when you receive your PTZOptics Producer Kit is read through the included manual. The PTZOptics producer kits comes in two varieties. The standard Producer Kit and the Producer Plus Kit. The standard producer kit can support up to two plug and play SDI cameras and the Producer Plus Kit can support up to four SDI cameras. The main difference is the use of two Magewell SDI capture cards OR the Magewell 4-port PCie SDI thunderbolt enclosure.
NOTE: You can upgrade a standard Producer Kit in the future by purchasing the PT-PRODUCER-UPGRADE SKU which includes the 4-port SDI to thunderbolt enclosure.
Step 2 – Let’s review everything that comes inside the box. Inside your Producer Kit box you will find a USB keyboard and mouse, a HuddleCamHD joystick controller, PTZOptics Camera, an Intel NUC computer, a Magewell SDI capture card (or 4-port SDI enclosure with Producer Plus Kit), a USB 3.0 7 port hub, a Shure MVI XRL to USB interface, a 100’ plenum rated 3G SDI cable, a 100’ serial camera control cable, a 6’ HDMI cable and a display port to HDMI adapter.
Step 3 – Let’s start by setting up your Intel NUC Skull Canyon Computer. The Intel NUC i7 Skull Canyon is a powerful micro PC which includes a 3-year warranty. This compact PC is perfect for use with your favorite video mixing software including OBS, Wirecast, xSplit or vMix. This super-fast micro PC computer comes with Windows 10 Enterprise already installed and ready for setup. Inside you will find the 6th generation Intel® Core™ 2.6 to 3.5 GHz i7 Quad Core Processor, 32 Gigabytes of Ram and a 256 Gigabyte solid state hard drive. Don’t let this computer’s small size fool you. Intel includes a built-in an Intel Iris Pro Graphics 580 card which supports up to three video outputs and plenty of horsepower for multi-camera video production software. Inside the Intel NUC box, you will find the Intel NUC, an included power supply, a manual, a VESA wall with hardware and an optional black faceplate. Let’s go ahead and remove the Skull faceplate and replace it with the standard Intel NUC top plate. Once you have optionally changed your faceplate you can also decide to wall mount the Intel NUC. You can wall mount the included metal VESA plate to and screw in the connection hardware to the back of the Intel NUC. Once this is done you can easily slip the Intel NUC into the VESA wall mount slots like so. Let’s plug your Intel NUC computer into a power source with the included power supply. Next, we can connect your computer to one of your available video outputs. The Intel NUC supports a full-sized HDMI 2.0 output, a Mini DisplayPort and a DisplayPort 1.2 via USB-C. An example use of all three video outputs would include one monitor for your video production software, one monitor for a multi-view or full-screen camera preview and a third monitor for a presentation software like Powerpoint or Propresenter.
NOTE: The kit includes and HDMI cable and mini-display port to HDMI adapter. To connect a third monitor you will need to purchase a Thunderbolt to HDMI adapter.
Step 4 – Next we can plug in the included keyboard and mouse and turn on your computer. Once your computer is on and Windows is running, we highly suggest connecting your computer to the internet via WiFi or a hard-wired ethernet connection.
NOTE: We highly recommend using a minimum of Cat-5e Ethernet cabling to provide your computer and camera(s) with a full gigabit data connection to your local area network.
Step 5 – Now we need to make sure you are connected to the internet so that you can download the applications that you plan on using for video production, presentation and file sharing. For example, you may want to install OBS for live streaming and video recording, PowerPoint for presentations and Dropbox for file sharing from remote computers. No matter what live streaming or video production software you choose the Intel NUC computer should be able to support it.
NOTE: In some advanced video production software you have to enable your Intel NUC’s graphics card for optimal performance. This setting is typically available in the settings menu of your preferred production software.
NOTE: You may want to download our free PTZ Camera Applications available at ptzoptics.com/apps
Pro TIP: The Skull Canyon also includes Intel® Turbo Boost Technology 2.0 which accelerates processor and graphics performance for peak loads, automatically allowing processor cores to run faster than the rated operating frequency. Your computer should have no problem live streaming and recording with multiple cameras even using advanced video production workflows.
TIP: When you are setting up your Windows PC we highly suggest using the “Performance Mode” in power settings. Also, be aware that using anti-virus or malware protection software that runs in the background of Windows will slow down your computer and may cause potential issues.
Step 6 – Now it’s time to set up your cameras. As you can see, each PTZOptics camera has the ability to output three simultaneous video feeds including SDI, HDMI, and an IP Stream via RTSP or RTMP. The producer kits include 100 foot of high quality, plenum rated, 3G-SDI cabling with locking connectors for reliable latency free SDI video connections to your camera. You can use HDMI and IP Streaming for more video production workflows covered in our camera specific setup videos available at PTZOptics.com/SDI. You will also see that there are multiple control options for your camera including RS-232, RS-485, and IP. For the purposes of this video, we will be using SDI for video and RS-232 for camera control.
Step 7 – For a flexible two (2) camera setup, we generally suggest a PTZOptics 12X-SDI camera and a PTZOptics 20X-SDI camera, since these cameras have different capabilities, such as zoom ranges and fields of view, to serve different needs. The PTZOptics 20X-SDI camera can be placed on the back wall of your room (to zoom in on the presenter) while the PTZOptics 12X-SDI can be used for other shots such as an audience or choir, as it provides a wider field of view (The PTZOptics 12X-SDI has a 72.5° HFOV versus the PTZOptics 20X-SDI with a 61° HFOV). If you require more than two cameras, remember you will need to select, or upgrade to, the PTZOptics Producer Plus kit.
NOTE: For more advanced information regarding the setup of your PTZOptics SDI camera please refer to the PTZOptics SDI camera setup video.
Step 8 – Plug your camera into an available wall outlet, or optionally plug your camera in a network switch that can provide PoE (Power over Ethernet). Let’s put our AAA batteries inside our remote control and test our ability to operate the PTZ Cameras. Your remote control can operate up to 4 PTZOptics cameras. You can switch between the cameras you would like to control using the four camera select buttons on the top of the IR remote. To set up each camera to respond to these unique buttons let’s turn just one camera on at a time and program each using the IR remote shortcut “*# F2”. The shortcut allows you to change the button each camera will respond to up to 4 using *# and the function key number you would like to utilize.
Step 9 – Once your camera is powered on, and you have set up your IR remote control let’s plug the camera into your SDI cable to check for video by using the included Magewell SDI to USB capture device. The SDI cable will connect to the capture device using the included SDI to mini SDI adapter. The capture device will connect to your computer using the included USB 3.0 male to male cable. Once the capture card is connected to your computer you can open up your camera inside OBS, or another video production software, by adding it as an input. The cameras SDI / HDMI output resolution will be set by the yellow dial switch on the back of the camera. Using this dial you can output up to [email protected] fps. You can reference the available frame rates and resolution on the bottom of your camera.
NOTE: Do not plug the Magewell capture device(s) into the included USB 3.0 hub. The USB 3.0 hub is only included for used with non-video devices such as keyboards, mice, etc….
Step 10 – Now it’s time to set up our joystick controller with the included serial control cables. First, let’s connect the HuddleCamHD Joystick Controller to power using the included power supply and available outlet. Next let’s connect the included DB9, joystick side, to 8-pin mini din, camera side, cable into your joystick controller. Now connect the 8-pin mini-din side of this cable into your PTZOptics camera RS232 In Port. To connect additional cameras to this setup you will need to use the RS232 Out Port of your first camera and connect a cascade control cable to the RS232 In Port of your next camera. In this way, you can daisy chain your joysticks control.
Step 11 – Now let’s verify that your first camera is set up properly. Bring up the OSD of the first camera and go to “setup” you can view the OSD menu on your video feed coming in to your computer via SDI. Make sure that the protocol is set to “VISCA”, the Net Mode is “Serial”, the V-AddrFix is “On”, and the Baud Rate is “9600”. Make sure the V_Address is set to “1”. You will need to repeat this process for each camera in your chain of control, setting each VISCA address to be unique.
TIP: You can use the joystick controller to bring up the OSD menu by calling preset 95 on the joystick controller. You can then use the joystick to navigate the menu and use the iris plus and minus buttons to enter inside new menus.
Step 12 – Now that we have control of our cameras with our joystick controller it is time to set some PTZ presets. To do so, we can drive the camera(s) to specific positions of interest and once we have the camera at a PTZ preset location that we will want to recall in the future simply click the set button and the number you would like to save this position as and press enter. We can repeat this process with over 200 presets until we have saved every location that we desire.
TIP: Consider keeping a sheet of paper with a legend to record the locations that each camera preset corresponds to.
Step 13 – Now that our cameras are fully operational, it’s time to bring in our audio. Use the included Shure MVi to plug in a microphone or audio source from an existing soundboard. You can connect any XLR or ¼” audio input to the Shure MVi with the MVi connected to an available USB port on your Intel NUC computer. Once your Shure MVi is fully connected you can pull this audio source into your video production much as we did with our camera inputs as a new source.
Step 14 – Now that audio and video inputs are all set up it’s time to make a test video recording and a live stream. The Intel NUC Skull canyon includes a 256GB Solid State drive which can store hours of high-quality recordings. Once you have selected a recording format and location in your software go ahead and hit the record to create a test video.
TIP: Using OBS or another video production software, you may want to set up a dedicated folder for your saved recordings. Step 15 – Now let’s test a live stream. You can login into your Facebook or YouTube account to set up a test live stream. Copy and paste the Stream URL and Stream Key into OBS or your preferred live streaming software and click save. Finally, you can hit the stream button, you now should see your video and audio stream appear inside Facebook or YouTube within a few seconds.
Step 16 – You have now successfully setup your PTZOptics Producer Kit. Remember that if you have any questions during the setup of your Producer Kit that you can always call the PTZOptics Support Team at the phone number listed on the PTZOptics website. You can also submit a support ticket at help.PTZOptics.com at any time. Happy streaming!


Note : The plug processor module is pictured together with the Ethernet plug in module X0999 903. You have to add this Ethernet plug in module as it is not included in the E0999 988.
How to assemble your own system?
Alternatively, you can select your system from the Systems Menu (click here).
How to develop your own baseboard pcb based on this processor module?
Sample codes available
Dimensions : 50 mm (W) x 75mm (D) x 1.8mm(H)
|Processor||Atmel ATXMega256A3 (8 bits)|
|Program flash||256 K|
|Built in RAM||16 K|
|Built in EEPROM||4K|
|On board Ethernet||Support Wiznet WIZ820io (product X0999 903) – NOT INCLUDED|
|On board RS232||Support tx, rx, rts, cts|
|Programming method||C programming, Atmel Studio 6.2 IDE, AVR ISP MK2 Programmer (product X0999 800)|
|Power supply||3.3 Vdc|
|Connector||64 pins (4 x 16 ways 2.54mm)|
|Compatible products||E0999 970, E0999 971|


The Department has three public sector corporations under it’s an administrative control: CMC Limited, Electronics Trade and Technology Development Corporation (ET&T;) and Semi Conductor Complex Limited (SCL). The department also works closely with other SPU’s like BEL, ECIL, ITI, BHEL, etc.
CMC Limited set up in 1976 is committed to the creative use of computers and information technology tools in core sectors of the economy through applications which increase productivity and improve the quality of life. The revenue for 1992-93 was more than 137 billion and staff strength was more than 2,300 people at the end of the financial year. It provides hardware maintenance support to various equipments supplied by over 30 manufacturers. It coordinates implementation of projects INDONET which is an integrated information management and distributing data processing facilities spanning the entire country. Its consultancy and technical expertise includes application like computerization of railway passenger reservation systems, economic load dispatch management systems for electricity generating units, computerization of banking operations, automatic message switching systems, ticketless trunk exchange in telecommunications, computerized finger print identification systems for police organizations, computer based environmental monitoring systems, etc. CMC has executed turn key projects in many important sectors like power transport, oil, etc. Besides, it has also bagged many software developmental orders from the international markets. As a major step towards globalization, CMC acquired Baton Rouge International (BRI), a US based company which provides comprehensive banking software and related services. BRI will afford CMC an entry into the international banking scene and also serve as a fronted for CMC’s thrust into the US and Canadian markets. This would come in handy especially when sports betting games on websites like www.cebofil.org are getting popular.
Electronics Trade and Technology Development Corporation (ET&T;) was set up with objectives of expanding foreign trade in electronics and undertaking developments of technology in key areas. It has acquired a unit to manufacture computers and CTV chassis. It has taken up a programmed to spread education through electronic media in curricular, vocational community development, adult literacy, children’s education, general awareness on science and technology programmed and makes available such educational video cassettes at an affordable price to the consumer. It has taken over total management of the Software Technology Park. It has also launched a scheme called ‘Mini Stores’ for large computer establishments, software centers and business houses for meeting their every day requirements of computer media e.g., floppy diskettes, computer tapes, ribbon, etc.
Semi conductor Complex Limited (SCL) was set up primarily to design, develop and manufacture LSIIVLSI circuits. SCL commenced commercial production in April 1984. Presently, SCL is concentrating on rebuilding its assembly, test and wafer fabrication facilities and has expanded its product portfolio to keep pace with the current market trends. The company has also undertaken a turnkey project to set up a state of the art Gallium Arsenide Enabling Technology (GAETEC) at Hyderabad. It has achieved full capacity utilization in quartz analog watch chip on board and electronic circuit blocks (QAW-COB and ECB) assembly lines. In addition, an assembly facility for packaging ceramic devices has been established and trial production commenced in August 1991. Five VLSI design centers at Bangalore, Baroda are fully operational. A few applications specific ICs were designed and fabricated at these centers and work on some others is in progress.


The Internet of Things (IoT) ranging from smart dishwashers to smart industrial lighting systems has grown exponentially within the last few years and is not expected to slow anytime soon. According to Harald Bauer, IoT devices are expected to surge from around 7 billion devices in 2013 to 30 billion in 2020. This annual growth rate of around 15-20% is taking industries by storm.
These devices might come across as benign, but, in fact, they are extremely vulnerable vectors for attacks. They increase the enterprise surface area and open more access points for attack. In early 2018, a smart fish tank, as harmless that may sound, enabled threat actors to access a Las Vegas casino's network and move laterally within it. Neglecting even the smallest IoT device that has access to the overall network can subject the entire network or networks to attack. This responsibility of securing the enterprise, and among that, IoT devices falls squarely in the hands of the senior risk management professional within an organization. This can be a Chief Information Security Officer (CISO), Chief Technology Officer (CTO) or in many cases the senior information technology leader.
The leader must support and enforce the top three Center for Internet Security (CIS) controls to exhibit some degree of network integrity. Without these three security controls or a variation of them displays extreme negligence and puts the network at an unreasonably at-risk situation.
The first control is to know what you have and where you have it. #1: Inventory of authorized and non-authorized devices. Next is #2: Inventory of authorized and non-authorized software. And #3: Implement an appropriate secure configuration of the devices prior to connecting the network. These measures will greatly simplify IoT problems as they manifest and guide the company in its future IT related decision-making.
IoT device adoption within the enterprise is becoming more widespread and therefore providing more avenues for threat actors to access the enterprise. Concerns over IoT devices do not stop at their software or hardware as companies are perpetually subject to attack from at-risk vendors with suspect supply chains. A suspect supply chain is a red alert for IoT devices since tampering can provide an avenue for attack that can cripple a network. Taking an inventory of these devices can prioritize at-risk devices while providing guidance for remediation. There is also the added benefit to managing the inventory since there is an updating ledger of overall devices connected to the network, which provides a valuable perspective moving forward regarding possible consolidation.
Software security on a device is a grave concern since it can allow threat actors to take advantage of outdated or misappropriated software. It is the responsibility of the CISO to identify all software and decide whether it is still viable or not. Questions should be directed at whether this software receives updates and patches regularly. Neglecting these measures can result in a security gap vulnerable to attack.
The process by which CISO's should respond to their newly made inventories is to plan how the company can consolidate these inventories without compromising the efficiency of the network. This plan will guide the CISO on the route of security-efficiency optimization. The plan should encompass a security posture that details tolerated risk, authorized and unauthorized inventories of software and devices, as well as how the network is configurated regarding IoT connection.
The challenge is daunting, but it is necessary. According to a recent survey 82% of 603 companies are not able to identify all IoT and operational technology on their networks. In another survey 47% of 320 cybersecurity professionals stated that they did not have measures to even detect attacks. This gap of pure ignorance can lead companies down a road of incessant attack from hidden vulnerabilities. A proper start to close the gap is to conduct a risk assessment or a penetration test to identify vulnerable devices. It will also aid in prioritizing risk as well as compliance.
Domain5 is committed to providing support to companies at an effective return on cybersecurity investment (ROIC). This support includes a part-time chief information security officer that is flexible to any small business demand large or small. Our support extends to risk assessment of current networks, information security, and compliance advise. Domain5 indivisibly recognizes the absolute necessity of maintaining cybersecurity awareness while simultaneously compensating for effective allocation of resources in any financial situation.


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Share videos and music clips via UPnP devices (SmartTV, HD TV, PS4, NAS, UPnP/DLNA servers).
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Video Input Project
Project Supervisor - Peter Sutton
The video input project decodes RCA or S-Video input into RGB data and stores it in RAM for display by the VGA output module.
Top-level file which connects the video input to the VGA output and controls the decoding of data from the saa7113 chip.
Core of the VGA project. Produces sync and other control signals for the VGA display.
File to program the RAMDAC for VGA display. See VGA project for more information.
Ram controller, see RAM projects for more information
Executable program to program the SAA7113 chip through the parallel port. This program was provided by XESS corporation.
Batch file to program registers of the SAA7113 chip using the saa7113.exe program.
Constraints file for the video input design
After the bit file has been downloaded to the board, a batch file such as saapal.bat must be run on the programming computer to program the video decoder chip. Once this is done, push switch 3 to start capturing frames and switch 2 to stop capturing frames. The last frame captured is left displaying when stopped. The default modes set allow high colour images updating as rapidly as possible. This causes a lot of noise on the screen during capture. The code contains comments that can be removed if desired to implement the following features:
Slowing capture rate: By slowing the capture rate, more of each image can be seen clearly between refreshes.
Screen blanking: The screen usually does not blank while a new frame is being captured. Frame capture causes noise in the display signal as the writes to RAM stop the reads from working. It is possible to make the screen blank during frame capture which will result in images going black before they are redisplayed.
Changing to 8-bit data: By changing to using 8-bit data, more pixels can be drawn on each screen. The default is 720 pixels wide with each piece of data mapping to two adjacent pixels. This is like having 360 pixels each two normal pixels wide. By using 8-bit data, two pixels can be stored in each byte in RAM and the full 720 pixels wide can be used.
The video in project uses the left bank of RAM to store the data by concatenating the row and column addresses of the pixels. Each address stores the data for two pixels. The row address is the upper 10 bits of the address used. The upper 9 bits of the column address are used to specify which column is being used. The lower bit is ignored as this is the bit which chooses which pixel we want. By default, the 16 bits of data at each address represents a colour for both of the pixels, although it can be changed so that the MSB is used to store 8-bit data for pixel 0 and the LSB stores 8-bits for pixel 1. The right bank of RAM cannot be used, as the pixel lines of the RAMDAC are connected to several of the address lines of the right bank of RAM.
By changing the batch file used to program the video decoder chip, both NTSC and PAL video formats can be displayed, although NTSC will also display some excess RAM data at the bottom of the screen due to its smaller resolution. PAL will display at 720*576 lines, and NTSC at 720*486. The SAA7113 datasheet details what all the registers do and should be referred to when changing the batch file. The standards both interleave their data, and the RAM is written in a way to interleave the data on the screen properly.
To program the SAA7113 with different data, the SAA7113.exe file should be used. This was provided by the XESS Corporation. It takes command line parameters.
To write to a sub-address use the format:
saa7113 w sub-address value
Both the sub-address and value should be hex values.
To read from a sub-address of the SAA7113 chip use the format:
saa7113 r sub-address value
where again the sub-address is in hex and the value is any hexadecimal integer (it is ignored but is required). The value returned from the SAA7113 will be displayed.
Some boards do not have the right clock for the video decoder and may not be able to decode colour. This can be fixed by contacting XESS. To activate colour, register 11(hex) may need to have the value 9 written to it. This has not been tested as our board did not have the correct clock, and we did not have time to replace it when the error was discovered, although it seems that it should work. The formulas used in the file to convert YUV to RGB may be incorrect as they have never been properly tested.
The saa7113.vhd file controls the decoding of data by using the VPO bus. See page 31 of the datasheet for more information. The timing codes are searched for in the data to know when to start and stop writing data. See the file for more information.
As already mentioned, there are some problems with the signal glitching due to RAM contention while the device is capturing. This can be fixed by lowering the VGA output timing to a 25MHZ pixel clock and cleverly interleaving and pipelining the reads and writes to RAM, to provide a full real-time streaming of input to output. Interleaving also causes some problems in display as the two fields outputted by the chip are sampled at different times, causing screen captures to have half the horizontal lines displaced from the other half.
Finally, there are some problems with the RAM controller this project uses that may be causing some writes to be ignored. This causes some errors in some captured frames.
There are many extensions that could be done to this project to increase the use of the project. Many of these have been mentioned in the limitations section above. There are many problems that need to be fixed and the code can be made a lot cleaner.


You May Require Help with Home Electrical Repair
The nerve center of your home’s electrical system is the electrical panel. It is in charge of transferring electricity from the utility company to your electrical circuits. A malfunctioning electrical panel may cause a number of electrical problems across your house.
How Does It Function?
Common electrical panel defects that may need fixing include loose connections, rusty wires, and faulty breakers. You should get in touch with a licensed electrician to get your electrical panel fixed if you notice any of these problems. Some common residential electrical issues that may need fixing include blown fuses, tripped circuit breakers, and malfunctioning outlets. You should get in touch with a licensed electrician to handle any of these problems if they occur.
Since 2007, Edison Electric has been the place to go for reliable electricians. Edison Electric has always taken pleasure in serving the Minneapolis region, and it will do so for a very long time to come.
Items That Require Repair Often
One significant electrical repair that houses could need is electrical panel repair. The electrical panel, sometimes referred to as the breaker box, is responsible for distributing electricity throughout the home. It consists of a number of circuit breakers that control how power is distributed throughout the home. There might be an electricity outage in that area if one of these circuit breakers trips. Resetting the breaker may be all that is necessary in certain cases to repair an electrical panel. The electrical panel has to be changed if it is worn out or damaged. A licensed electrician should always be contacted by homeowners before doing any electrical work themselves. Installation of EV chargers is another electrical repair that houses could need. As electric cars become increasingly widespread, EV chargers also spread around the country. Both residential and commercial structures are capable of installing electric car chargers. The installation often requires running an electrical line from the building’s main electrical panel to the location of the charger. Homeowners should once again contact a licensed electrician before attempting this sort of installation.
What to Look for While Repairing an Electrical Panel
It’s a chore that many homeowners detest, fixing their electrical panels. After all, it takes a lot of time and money. Yet, there are a few warning signs that point to the need for electrical panel repair. It’s time to call in a technician, for instance, if your electrical panel is making strange sounds or the circuit breaker keeps tripping. If the electrical panel shows signs of corrosion or if the wiring seems to be damaged, electrical panel repair is also probable. Of course, consulting a qualified electrician is the best way to be sure. They’ll be in a position to assess the situation and decide if electrical panel repair is necessary.
It is essential to speak with an electrician about electrical panel repair. It’s common for electrical panels to malfunction owing to a simple problem that an electrician can fix. Sometimes it is necessary to replace electrical panels because they are no longer working. It is crucial to contact an electrician to assess the situation if this happens. If the electrical panel has to be fixed or replaced, they will be able to let you know and do it safely and efficiently. This guarantees that the electrical panel in your house or place of business is installed correctly and functional. Contact Edison Electric right away if you want breaker panel repair & replacement in Minneapolis.


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HP Pavilion 15 Intel Core I7 (1TB HDD,12GB, ) Windows 10 Touchscreen Notebook - With 32gb Flash+BAG
HP HP EliteBook 820 G3 Core I5 6th Gen 6300U 2.4GH 8GB 256GB SSD 12.5" Windows 10 Pro+LAPTOP BAG N 32GB FLASH DRIVE
HP PAVILLION 15-X360 CONVERTIBLE 7Th Gen Intel Core I5,2.3GHz,1TB HDD,8GB RAM,2GB AMD Radeon 530 Graphics,,15.6'', Windows 10
HP ZBook 15 G3 Mobile Workstation (ENERGY STAR) (PFH65) – Intel Core I7, 8GB RAM, 256GB SSD, 2GB NVIDIA-Quadro M1000M Graphics, 15.6″ FHD AntiGlare Screen, Windows 10 Pro
HP Pavilion 15-bc018ca Intel Core I7-6700HQ 32GB Flash+Mouse+FashionWatch (16GB,/2TB HDD/4GB Geforce Graphics Nvidia) 6th Generation 15.6-Inch Windows 10 Touchscreen+32GB FLASH+USB LIGHT+BAG
HP ENVY 17.3'' Intel Core I7-2.7GHz(16GB RAM/1TB HDD 4GB Nvidia Geforce Graphics) 17.3-Inch Win10 TouchS, Keyb Light +Wireless Mouse+1year Active Antivirus +32GBflash
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HP Envy LAPTOP INTEL CORE I7-8550U, 8GB, 256GB SSD, 13.3" TOUCH SCREEN, Windows 10 Home -8TH GENERATION,FINGER PRINT READER
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HP X360 Intel Core I5 (16GB,2TB Windows 10 Touchscreen Laptop- Silver +32GB Flash, MOUSE ATTACHED
HP Probook 640 G4 8th Generation Intel Core I7-8560U 2.9Ghz Upto 4.0Ghz 512GB SSD 16GB RAM 14 Inch Backlit Win 10 Pro
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HP or Hewlett-Packard (named after the founders William Redington Hewlett and Dave Packard) is a multinational information technology company headquartered in Palo Alto, United States. The company is the world's leading PC manufacturer and specializes in developing and manufacturing storage, computing, and networking hardware, designing software and delivering services. Founded in January 1939, the company has gone on to become a household name with powerful computers like the HP Pavilion x360 laptop and other office accessories.
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Better computing is done with HP computers and printers with the right HP driver installed. Need a new computer? Not sure whether to go for a desktop with a large screen and functionality or an HP laptop which is portable for travelling? At Jumia we have whatever you need to get you started and keep you up to date in this fast-paced tech world, including HP drivers, Hp printers such as the DeskJet, laserjet and much more. HP drivers include the software, hardware and peripherals you need for your computing devices to make them work better just the way you want. When you shop with us, you are guaranteed the best price of HP laptops and gadgets. Buy your HP laptops 6 online at the best price on Jumia today.
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Easter season is upon us in 2017. What better time is there to get the best deals on all HP products at the best prices. Discover up to 50% off on HP accessories. Because computers tasks can be performed at a fraction of the time it usually takes to complete them manually, work can be completed more efficiently because of automation and innovation brought about by such smart gadgets made by HP. Discover the HP Pavilion series laptops such as the HP Pavilion x360 Convertible Laptop (11.6") at the best prices online only at Jumia. Jumia brings you a range of office accessories from your computers and tablets to software, printers, flash drives, laptop bags to make sure your office networking runs smoothly as well as brightens up your workspace. Computers are constantly becoming more user-friendly for travel and keeping you in touch with the rest of the world and your office while on the go. We offer you the possibility to buy HP laptops online computers in Nigeria at the best prices.


In the age of data, information is power. And when that information is tied to a specific location, it becomes even more valuable. Geospatial data science is the field that harnesses the power of location-based data to solve complex problems, make informed decisions, and unlock new insights. From navigating traffic to monitoring climate change, geospatial data science plays a crucial role in our lives. In this article, we’ll explore what geospatial data science is, its applications, and why it’s a growing field of interest.
Understanding Geospatial Data Science
Geospatial data science is all about capturing, analyzing, and visualizing data that is explicitly tied to a location. This data can be sourced from satellites, drones, GPS devices, or even social media check-ins. It encompasses a wide range of information, from simple coordinates to intricate maps and 3D models of terrain. When processed and analyzed effectively, geospatial data can provide profound insights into a variety of domains, including urban planning, environmental management, disaster response, and more.
Applications of Geospatial Data Science
Mapping and Navigation: Geospatial data science is the driving force behind the mapping and navigation services we use daily. Whether it’s Google Maps guiding you through a new city or a delivery service optimizing its routes, location-based data is at the core.
Environmental Monitoring: Climate scientists use geospatial data to monitor changes in the Earth’s environment. This includes tracking deforestation, observing ice cap melt, and predicting natural disasters.
Urban Planning: City planners use geospatial data to optimize traffic flow, plan public transportation, and even decide where to build new parks or hospitals.
Agriculture: Farmers can make more informed decisions by using geospatial data to analyze soil quality, moisture levels, and other factors that affect crop yield.
Healthcare: Geospatial data plays a vital role in epidemiology, helping track the spread of diseases and plan vaccine distribution.
Why Geospatial Data Science Is on the Rise
The growing interest in geospatial data science can be attributed to several factors:
Technological Advancements: We now have access to more data than ever before, thanks to advancements in satellite technology, GPS, and remote sensing. This wealth of information has opened up new opportunities for analysis.
Big Data and Machine Learning: As with other data science domains, the capabilities of big data analytics and machine learning are being applied to geospatial data. This allows for deeper insights and more accurate predictions.
Real-time Data: The availability of real-time data from sources like IoT devices and social media check-ins has made it possible to monitor and respond to events as they happen.
Business Applications: Many businesses are finding value in geospatial data, from logistics companies optimizing delivery routes to retail businesses targeting their marketing efforts to specific locations.
The Future of Geospatial Data Science
Geospatial data science is poised for continued growth and innovation. As our world becomes more connected, the need for accurate location-based insights will only increase. This field will play a pivotal role in addressing global challenges such as climate change, urbanization, and healthcare.
Geospatial data science is a dynamic and evolving field that leverages the power of location-based data to solve real-world problems. Its applications span diverse domains, making it an integral part of our daily lives. With advancements in technology and data analytics, the future of geospatial data science is undoubtedly promising, opening new doors to explore and understand our world in ways we’ve never imagined.
In the evolving landscape of data science, geospatial data science stands out as a dynamic and impactful field. Its ability to harness location-based information and transform it into valuable insights has far-reaching implications across various industries. From improving navigation and traffic management to aiding in environmental conservation and disaster response, geospatial data science is making a tangible difference in our lives.
As technology continues to advance, with the emergence of IoT devices, real-time data sources, and powerful machine learning algorithms, the field of geospatial data science is positioned for significant growth. The applications of this discipline are boundless, promising to address critical global challenges like climate change, urbanization, and healthcare in innovative ways.
Geospatial data science is not just a tool for analysis; it’s a lens through which we gain a deeper understanding of our world. With a future teeming with possibilities, this field will continue to shape our response to real-world problems, offering us new perspectives, solutions, and opportunities for a more informed and connected planet. If you’re intrigued by the potential of geospatial data science, consider exploring the best data science course in Kota, Ahmedabad, Noida and all locations in India to kickstart your journey in this transformative field.


This week in one of most famous scientific journals has been published this report:
Camara CG, Escobar JV, Hird JR, Putterman SJ, "Correlation between nanosecond X-ray flashes and stick–slip friction in peeling tape.", Nature 455, 1089-1092 (23 October 2008) | doi:10.1038/nature07378
Relative motion between two contacting surfaces can produce visible light, called triboluminescence. This concentration of diffuse mechanical energy into electromagnetic radiation has previously been observed to extend even to X-ray energies. Here we report that peeling common adhesive tape in a moderate vacuum produces radio and visible emission, along with nanosecond, 100-mW X-ray pulses that are correlated with stick–slip peeling events. For the observed 15-keV peak in X-ray energy, various models give a competing picture of the discharge process, with the length of the gap between the separating faces of the tape being 30 or 300 mum at the moment of emission. The intensity of X-ray triboluminescence allowed us to use it as a source for X-ray imaging. The limits on energies and flash widths that can be achieved are beyond current theories of tribology.
If you peel a tape in vacuum, it's emit X-ray which can be detected with a Geiger or a photo-film.
Please watch the video http://www.nature.com/nature/videoarchive/x-rays/


A computer is an electronic device, operating under the control of instructions stored in its own memory that can accept data (input), process the data according to specified rules, produce information (output), and store the information for future use.
The world moves and we must do likewise, lack of computer knowledge simply means one is behind the world. Computer is easy to learn and understand.
It is not a crime to be computer illiterate but when you see an avenue to be developed do not turn it down.
© TechTeach & Solutions. All Rights Reserved


Digitally Controlled High Frequency VGA – Circuit Wiring ...
Digitally Controlled High Frequency VGA. Posted by Circuit Diagram in Lighting Circuits. Variable gain amplifiers (VGAs) can be used in may types of systems, such as radio receivers. In this system, the input signal voltage depends on an uncontrolled variable, such as distance to the transmitter. To ensure that the input signal amplitude ... Digitally Controlled High Frequency VGA_Circuit Diagram World
The bandwidth of VGA in the following figure has high bandwidth, ranging from 115MHz at high gain to 225MHz at low gain, so we can use this circuit in the RF signal path without degrading the signal. The DAC in this circuit can be upgraded, but the level shifter op amp limits the speed at which you can update the gain of the VGA to 2MHz. Digital Control VGAs | Analog Devices
Analog Devices digital controlled variable gain amplifiers provide discrete levels of gain control over a fixed number of control bits for a variety of audio and optical frequency bands. Our VGAs improve the dynamic range of a circuit by allowing users to adjust the amplitude of a signal in real time, which is critical for a number of applications EDN Access — 07.18.96 High frequency VGA has digital control
Design Ideas:July 18, 1996 High frequency VGA has digital control. Ronald Mancini, Harris Semiconductor, Melbourne, FL. You can use variable gain amplifiers (VGAs) in many types of systems, such as radio receivers, in which the input signal voltage depends on an uncontrolled variable, such as distance to the transmitter. LT5554 Broadband Ultra Low Distortion 7 Bit Digitally ...
Controlled VGA The LT®5554 is a 7 bit digitally controlled programmable gain (PG) ampliﬁ er with 16dB gain control range. It consists of a 50Ω input variable attenuator, followed by a high linearity variable transconductance ampliﬁ er. The coarse 4dB input attenuator step is implemented via 2 bits of digital control (PG5, PG6). The ﬁ ne ... AN9641: High Frequency VGA Has Digital Control
High Frequency VGA Has Digital Control APPLICATION NOTE AN9641 Rev 1.00 Page 1 of 2 Apr 1998 AN9641 Rev 1.00 Apr 1998 Introduction You can use variable gain amplifiers (VGAs) in many types of systems, such as radio receivers, in which the input signal voltage depends on an uncontrolled variable, such as distance to the transmitter. RF and Video – Page 5 – Electronic Circuit Diagram
Digitally Controlled High Frequency VGA. May 16, 2010 Rust. Variable gain amplifiers (VGAs) can be used in may types of systems, such as radio receivers. In this system, the input signal voltage depends on an uncontrolled variable, such as distance to the transmitter. To ensure that the input signal amplitude matches the input voltage range of ... 45 dB Digitally Controlled VGA LF to 600 MHz AD8369
The AD8369 is a high performance digitally controlled variable gain amplifier (VGA) for use from low frequencies to a –3 dB frequency of 600 MHz at all gain codes. The AD8369 delivers excellent distortion performance: the two tone, third order intermodulation distortion is –69 dBc at 70 MHz for a 1 V p p composite output into a 1 kW load. High frequency high dynamic range CMOS VGA
A novel CMOS variable gain amplifier (VGA) with high frequency and high dynamic range is proposed. The VGA has a controllable gain range of 50 dB 50 dB which can be controlled by adjusting the ... Wide Dynamic Range, High Speed, Digitally Controlled VGA ...
Wide Dynamic Range, High Speed, Digitally Controlled VGA Data Sheet ADL5201 Rev. C Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. 100 MHz to 4000 MHz RF IF Digitally Controlled VGA Data ...
RF IF gain control . GENERAL DESCRIPTION . The . ADL5243. is a high performance, digitally controlled variable gain amplifier operating from 100 MHz to 4000 MHz. The VGA integrates two high performance amplifiers and a digital step attenuator (DSA). Amplifier 1 (AMP1) is an internally matched gain block amplifier with 20 dB gain, and dB Linear Variable Gain Amplifier Design in 0.18 μm ...
Background and Objective: Based on the different gain switching mechanisms, variable gain amplifiers can be categorized as analog controlled VGA and digital controlled programmable gain amplifier (DVGA). A complementary metal oxide semiconductor (CMOS) linear in dB variable gain amplifier (VGA) design in TSMC 0.18 μm process was presented and a new approach was proposed in this study. LMH6515 600 MHz, Digital Controlled, Variable Gain ...
It combines precision gain control with a low noise, ultra linear, differential amplifier. Typically, the LMH6515 drives a high performance ADC in a broad range of mixed signal and digital communication applications such as mobile radio and cellular base stations where automatic gain control (AGC) is required to increase system dynamic range. ADL5202 Datasheet and Product Info | Analog Devices
The ADL5202 is a digitally controlled, variable gain, wide bandwidth amplifier that provides precise gain control, high output IP3, and low noise figure. The excellent distortion performance and high signal bandwidth make the ADL5202 an excellent gain control device for a variety of receiver applications. Characteristic impedance
The characteristic impedance () of an infinite transmission line at a given angular frequency is the ratio of the voltage and current of a pure sinusoidal wave of the same frequency travelling along the line. This definition extends to DC by letting tend to 0, and subsists for finite transmission lines until the wave reaches the end of the line. In this case, there will be in general a ... Designing a TMS320F280x Based Digitally Controlled DC DC ...
Designing a TMS320F280x Based Digitally Controlled . DC DC Switching Power Supply . Shamim Choudhury Digital Power, C2000 DSP and System Power Management . ABSTRACT . This application report presents a TMS320F280x based digital control design and implementation of a high frequency dc dc switching power supply. Starting with a dc dc Digitally controlled oscillator (DCO) based architecture ...
Abstract— A novel digitally controlled oscillator (DCO) based architecture for frequency synthesis in wireless RF applications is proposed and demonstrated. It deliberately avoids any use of an analog tuning voltage control line. Fine frequency resolution is achieved through high speed dithering. Other imperfections (PDF) Low Voltage Current Mode Digitally Controlled VGA ...
Low Voltage Current Mode Digitally Controlled VGA Based on Digitally Programmble Current Conveyors Article (PDF Available) in Midwest Symposium on Circuits and Systems · August 2008 with 33 Reads AD8369 45 dB Digitally Controlled VGA LF to 600 MHz Data ...
The AD8369 is a high performance digitally controlled variable gain amplifier (VGA) for use from low frequencies to a –3 dB frequency of 600 MHz at all gain codes. The AD8369 delivers excellent distortion performance: the two tone, third order intermodulation distortion is –69 dBc at 70 MHz for a 1 V p p composite output into a 1 kW load. Digitally Controlled High Efficiency and High Power ...
I manage to C2000 digital power system application team at Texas Instruments. Today in this presentation, we'll cover digitally control high efficiency and high power density power factor correction circuits. Specifically this presentation will cover C2000 Microcontroller based digitally controlled high efficiency and high power density PFC ... 8 ChannelVariable GainAmplifier (VGA) With Octal High SpeedADC
Programmable Cutoff Frequency (7.5, 10, or device. 14MHz) Each of the eight differential inputs is buffered, • Clamping accepts up to 2Vpp maximum input swing, and is • Analog to DigitalConverter (ADC) followed by a VGA with a gain range from – 5dB to 31dB. The VGA gain is digitally controlled, and the A CMOS Norton amplifier based digitally controlled VGA for ...
A CMOS Norton amplifier based digitally controlled VGA for low power wireless applications. ... Their high frequency behavior, diﬀerences in biasing details and noise analysis are also compared ... Variable gain amplifier
A digitally controlled amplifier (DCA) is a variable gain amplifier that is digitally controlled. The digitally controlled amplifier uses a stepped approach giving the circuit graduated increments of gain selection. This can be done in several fashions, but certain elements remain in any design. 16 CHANNEL VARIABLE GAIN AMPLIFIER (VGA) WITH OCTAL HIGH ...
– Digital Gain Control accepts up to 1V PP maximum input swing and it is •3rd Order Anti Aliasing Filter With followed by a VGA with a gain range from –5dB to Programmable Cut Off Frequency (7.5, 10 and 31dB. The VGA gain is digitally controlled and the 14MHz). gain curves versus time can be stored in memory, DIGITALLY CONTROLLED CMOS BALANCED OUTPUT TRANSCONDUCTOR ...
A digitally controlled balanced output transconductor (DCBOTA) is proposed and analyzed. The proposed DCBOTA is based on the BOTA given in Ref. 1 and MOS switches. The DCBOTA transconductance is tunable in a range of 2 n 1 times using n bits control word. A CMOS Norton amplifier based digitally controlled VGA for ...
VGA DESIGN REQUIREMENTS off chip high frequency intermediate frequency (IF) filters and amplifiers . Alternatively, other receiver architectures In this paper, a new VGA circuit based on the Norton ampli like the zero IF, low IF, and wide band double conversion fier is presented. ADL5243 Datasheet and Product Info | Analog Devices
The ADL5243 is a high performance, digitally controlled variable gain amplifier operating from 100 MHz to 4000 MHz.The VGA integrates two high performance amplifiers and a digital step attenuator (DSA). Amplifier 1 (AMP1) is an internally matched gain block amplifier with 20 dB gain, and Amplifier 2 (AMP2) is a broadband ¼ W driver amplifier that r A Digitally Controlled Variable Gain Amplifier for Ultra ...
control scheme based on binary weights to control the gain of the VGA. At the heart of the VGA is a Gilbert Cell whose gain is a function of the tail current. The tail current is controlled by the Digital Control Circuit which in turn is operated by a DSP section that is not a part of our design. The gain of the VGA is linear in magnitude ... 16 CHANNEL VARIABLE GAIN AMPLIFIER (VGA) WITH OCTAL HIGH ...
– Digital Gain Control accepts up to 1VPP maximum input swing and it is • 3rd Order Anti AliasingFilter With followed by a VGA with a gain range from – 5dB to Programmable Cut OffFrequency (7.5, 10 and 31dB. The VGA gain is digitally controlled and the 14MHz). gain curves versus time can be stored in memory, Digitally controlled oscillator for all digital frequency ...
Digitally controlled oscillator for ADFLL’s 5 to use a voltage controlled ring oscillator and a digital to analog converter (this implementation is depicted in the ﬁgure). The output of the DCO is usually a high frequency signal, noted OSC in the ﬁgure. The phase of the OSC signal should be compared with a precise phase of the signal A 3.5 GHz phase shifter of high input power range with ...
Request PDF | A 3.5 GHz phase shifter of high input power range with digitally controlled VGA | A high input power range phase shifter is designed and fabricated on 0.18 μm CMOS technology. With ... ADC Driver Offers Digitally Controlled Gain | Microwaves ...
Digitally controlled gain in the new MAX2055 variable gain amplifier (VGA) from Maxim Integrated Products (Sunnyvale, CA) allows the device to quickly achieve optimum signal levels for analog to digital converters (ADCs). Designed for intermediate frequencies (IFs) from 30 to 300 MHz, the MAX2055 is ... RF Lambda
High Efficiency Power Amplifier; VGA Amplifier; Low Phase Noise Amplifier; Front Overdrive Protected Amplifier; ALC Automatic Level Control Amplifier; PIN, GaAs and GaN Switch; USB Control Solid State Switch; Electromechanical Switch; Digital Step Phase Shifter; Voltage Control Phase Shifter; Digital Control Step Attenuator; Voltage Control ...
digitally controlled high frequency vga Gallery
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The laptop is more convenient than a desktop in the busy world of today since you can utilize it wherever you want. Because there are so many laptops available on the market, choosing one to use for coding is becoming more challenging.
Therefore, consider your needs in terms of features and specifications, and choose the laptop that offers the greatest value for your money. If you are a programmer or a student studying coding, make an informed decision while choosing a laptop.
Laptops for programming are similar to other popular laptops. You’ve come to the perfect place if you’re new to coding or want to purchase a new laptop for programming. Thus, how do programmers choose the best laptops?
It’s not a big deal to buy a laptop for programming, but there are a few things you should think about beforehand. Storage, the newest generation of processors, decent graphics performance, 8 GB of DDR4 RAM, good battery life, a backlit keyboard, and a long list of other factors are just a few.
List of Best Programming Laptops India under Rs 50,000
The finest laptops for programmers around INR 50,000 are mentioned below to assist you in making the best decision.
For students and workers who perform remote work, the Lenovo IdeaPad Slim 3i 10th Gen Intel Core i5 15.6-inch Full HD IPS Thin and Light Laptop (8GB/512GB SSD/Windows 10/MS Office 2019/Fingerprint Reader/Platinum Grey/1.85Kg) is a cost-effective laptop. This laptop offers amazing productivity for the money and is a fantastic option for a wide range of customers.
- Operating System: Pre-installed, lifetime-valid Windows 10 Home
- 15.6-inch FHD- 1920 x 1080 display
- Brightness: 250 nits with IPS Technology and Anti-Glare
- 10th generation Intel Core i5-1035G1 processor
- Processor speed: 6MB Cache, 4 Cores, and a range of 1.0 GHz to 3.6 GHz.
- Pre-installed are MS Office Home and Student 2019
- Storage and memory: 8GB DDR4-2666 RAM. It can be upgraded to 12GB. SSD with 512 GB of storage.
- Design: Fingerprint reader and a 1.99 cm thin device with a slim bezel
- Up to 6 hours of battery life, and it quickly recharges to 80% in 1 hour.
- HD 720p camera (built-in) (1.0 MP)
- Audio: HD Audio and Dolby Audio on 2 x 1.5W stereo speakers
- Ports: 4-in-1 media reader, HDMI 1.4b, Headphone/Mic combo jack, 2 USB 3.2 Gen 1 Gen 1, 1 USB 2.0 (MMC, SD, SDHC, SDXC)
- One-Year On-Site Warranty
- Improved multitasking performance without affecting user interface speed Maximum effectiveness
- The most recent OS version provides a fluid and improved experience. Reduces eye strain is an anti-glare screen.
- Absence of an optical drive No HDMI
- No VGA ports No-touch signals
For individuals who prefer to be productive, there is the HP 15 10th Gen Intel Core i3 Processor 15.6- inch FHD Laptop (8GB/1TB HDD/Windows 10 Home/Integrated Graphics/Natural Silver/1.75 Kg). Its long-lasting battery enables you to use it for extended periods while remaining more productive.
The elegant and micro-edge bezel design of this HP 15s-du2002tu laptop is fantastic. You can stream, surf, and complete your task faster thanks to its anti-glare micro-edge WLED.
- System of operation: Windows 10 Home
- 10th generation Intel Core i3-1005G1 processor
- Memory and storage: 8 GB DDR4 RAM and 1 TB 5400 rpm HDD
- 15.6-diagonal FHD SVA anti-glare micro-edge WLED as the display
- Full-size keyboard with a numeric keypad in natural silver and Precision Touchpad Support
- Laptop weight: 1.75 kg
- Strong backup batteries
- Fashionable laptop
- Optimal functionality
- Process speed is increased by enough RAM and storage capacity.
- Small-edged bezel style
- no touchscreen display
- no backup camera (rear-facing)
- optical drive absent
- Without a fingerprint scanner
A budget laptop for e-learning is the Redmi Book Pro. It is an Intel Core i5 11th Gen H Series laptop. It has a few changes as compared to other laptops. Its 10-hour battery life and built-in HD webcam are beneficial for online meetings and classes.
The 14-inch Full HD display has a 16:9 aspect ratio and a 178-degree hinge. This model gives you 8GB RAM and 512GB SSD storage, which makes it easier for you to complete tasks quickly. It has stereo speakers and uses DTS Music processing software to adjust the audio playing to the user’s preferences.
- Windows 10 Home operating system
- Processor: Intel Core i5-10110U, 10th generation, 2.10 GHz base, 4.10 GHz maximum
- Display: 1920 x 1080 Full HD Anti-Glare 14-Inch, Intel UHD Graphics
- 8GB DDR4-2666MHz RAM
- 512 GB SSD storage
- DTS audio over stereo speakers Processing
- Design: Sleek laptop with a sturdy metal body weighs 1.5 kg
- 720p webcam
- Battery Life: 10 hours maximum
- Pre-installed applications: One-month trial subscription to Office 365
- One-year warranty
- Maximum effectiveness built-in camera inexpensive range
- Stylish appearance and improved user experience glare-reducing screen
- Extended battery backup
- No Fingerprint sensor
- Absence of VGA port
ASUS VivoBook Ultra K14 (4GB RAM/256GB NVMe SSD/Windows 10/MS Office 2019/Integrated Graphics/Hearty Gold/1.4 kg) Intel Core i3-10110U 10th Gen 14-inch FHD Thin and Light Laptop. Are you seeking a laptop that has the power you require to complete your tasks? The ASUS VIVOBOOK ULTRA K14, which adds style and energy to regular computing, is a good alternative.
The vibrant hue is expressed by its metallic lid. Indie Black, Transparent Silver, and Hearty Gold are some of the possible color choices. An expansive and immersive viewing experience is provided by the Nano Edge display’s small bezel. With a full HD display and a variety of viewing angles, it produces colors with excellent accuracy.
- Processor: Intel Core i3-10110U, 2.1 GHz, 10th generation (4MB Cache, up to 4.1 GHz, 2 Cores, 4 Threads)
- Memory & Storage: Onboard DDR4 4GB RAM at 2666 MHz
- Storage: 1 vacant M.2 slot for SSD expansion and a 256GB M.2 NVMe PCIe 3.0 SSD
- A built-in version of Intel’s UHD graphics
- Screen size: 14.0-inch (16:9) With a screen-to-body ratio of 84% and an LED-backlit FHD (1920 x 1080) 60Hz anti-glare panel with 45% NTSC
- Software Contained: MS Office Home and Student 2019 is already installed. The operating system is a lifetime-valid Windows 10 Home
- metallic lid, thin bezels, a thin and light laptop weighing 1.40 kg, a 3-cell lithium-ion battery, and a battery life of up to 6 hours
- Full-size Chiclet Backlit Keyboard with 1.4mm key travel
- I/O Ports: 2 USB 2.0 Type-A, 1 USB 3.2 Gen 1 Type-A, 1 USB 3.2 Gen 1 Type-C, 1 Micro SD card reader, 1 HDMI 1.4, 1 3.5mm Combo Audio Jack
- Warranty: One year from the manufacturer
- Stylish style
- Dynamism in performance
- Backlit keyboard
- Quick fingerprint scanner
- Battery backup
- Sound average
Your preferences and taste will influence the laptops you select. To improve speed, it is suggested that you select a processor with ample RAM.
It’s great to know that choosing 8GB of RAM will enable the coder to work much more quickly. Examine the features and specs of laptops that suit your demands first, then spend money on a high- performance model to do jobs faster and with less waste of time.


Rechargeable & Portable
The makeup vanity mirror has been upgraded with a built-in lithium battery that can be charged and used without always plugging in the charging cable. Powered with a 700 mah rechargeable heat resistant battery and the power cord has been extended and upgraded to 3 meters.
3 Color Lighting Modes
This vanity visor mirror has two touch sensors, short press the two sensor switches to change the 3 light colors: white, warm, white+warm. Press to adjust the brightness function make this lighted makeup mirror much smarter than traditional ones.
Fully Adjustable LED Lights
This car vanity makeup mirror has 48 white lights and 12 yellow lights, which is 40% brighter and uses 60% less energy than normal bulbs. In addition, the car visor vanity mirror has a memory function saving its last brightness and color settings.
USB Power Supply
This car sun visor mirror with lights is powered by Type-C, 2 interface design, which can be easily charged wherever you are. It can be charged through the car, socket, computer, and mobile power.
Universal Size Design
The size of this car vanity makeup mirror is 20.2(L)*3.6(W)*14(H) cm, 7.9(L)*1.4(W)*5.5(H)inch, suitable for most of the sun visors of cars. This car vanity mirror is compact, lightweight, and saves more space inside the car. The adjustable velcro ensures the mirror is mounted safely.
Package Includes: 1* LED light mirror, 1* charge
Please allow slight measurement errors due to manual measurement.
Due to the different monitor and light effects, the actual color of the item might be slightly different from the color shown in the pictures.


Unveiling the Potential of Quantum AI Computing
The world of technology is on the precipice of a profound transformation, driven by the enigmatic and powerful duo of quantum computing technology and quantum AI technology. While the terms might sound like something out of science fiction, the reality is far more exciting, promising to revolutionize industries and solve problems hitherto deemed impossible.
But before we delve into the applications, let’s unpack the fundamental concepts. Quantum tech harnesses the bizarre laws of quantum mechanics, where particles can exist in multiple states simultaneously (superposition) and influence each other instantly across vast distances (entanglement). These principles empower quantum computing technology to process information in ways far surpassing traditional computers, potentially unlocking solutions to complex problems in drug discovery, materials science, and financial modelling.
The Rise of Quantum AI: A Marriage of Minds
Now, imagine integrating this computational prowess with the learning capabilities of quantum AI technology. This potent combination, where quantum computing and AI algorithms work in tandem, could lead to breakthroughs in areas like:
- Drug Discovery: Simulating complex molecules to design new drugs with unparalleled speed and accuracy.
- Financial Modelling: Predicting market trends with unprecedented sophistication, mitigating risks and maximising returns.
- Materials Science: Designing materials with tailored properties, leading to lighter, stronger, and more efficient technologies.
- Cybersecurity: Breaking current encryption methods and developing quantum-resistant algorithms for enhanced security.
Research Unlocks Exciting Possibilities
Recent research findings provide a glimpse into the transformative potential of this field:
- Google’s Sycamore chip achieved “quantum supremacy” in 2019, demonstrating the ability to solve a problem intractable for classical computers.
- IBM’s Quantum Advantage Initiative is making significant strides in developing practical quantum applications.
- DeepMind, in collaboration with Google AI, is exploring the integration of quantum and classical AI algorithms for tackling complex challenges.
Challenges on the Road to Quantum Supremacy
However, it’s crucial to acknowledge the challenges:
- Building stable and scalable quantum machines remains a significant hurdle.
- Developing efficient quantum algorithms for real-world applications is ongoing research.
- Integration with existing infrastructure needs careful consideration.
The Future Beckons: A Call to Action
Despite the challenges, the potential of quantum AI technology is undeniable. It’s time for researchers, industry leaders, and governments to collaborate and accelerate progress. By unlocking the power of quantum, we can pave the way for a future filled with innovations that were once science fiction, shaping a world for the better.
- Google Quantum AI: https://quantumai.google/
- IBM Quantum: https://www.ibm.com/quantum
- DeepMind: https://deepmind.google/
This blog post has provided a glimpse into the exciting world of quantum AI computing. Remember, this is just the beginning. As research progresses and challenges are overcome, the true potential of this technology will unfold, bringing about a paradigm shift in various fields. Stay curious, explore further, and be a part of this revolutionary journey!


|3D Laser Engraving machine
|Laser power:50W JPT laser
|Working area: 100*100mm/200*200mm
|Lenmark3DS and lenmark3D software and dougle
|2D working table
|U flash drive
|3000 vector design
|High quality power supply
Main feature of 3D system
- 3D adopts high-speed, high precise 3D galvo, JPT 50W laser source, 3D specified software and control system, it can engrave on any curved work pieces in a fine process. It can adjust focus length any time for deep engraving, which makes process efficiency and effect much better than the traditional 2D fiber laser marking machine.
- Hardware of 3d laser head
Unique optical path design based on different lasers, with low optical loss and 20% efficiency increased. Rapid response with high speed guide rail of Z axis, High stability with galvanometer.
Optional 3D engraving software, easily achieve surface marking and 3D relief.
Advantage of 3D laser
- Subvert traditional 2D marking mode. It can engrave many different 3D shapes, for example: slope, cylinder, cone, ball etc.
- Amazing huge central angle marking
- Perfectly present target graphics on work pieces, avoid deforming such as elongation, slope.
- The border won’t be “ignored”. Everything is marked uniformly.
- Details show ingenuity, no matter observing from any angles, it is exquisite, perfect.


A web server can actually mean one of two different things, either the actual computer hardware, or the software that runs on the web server, receiving requests from clients and responding to them. Here we will take a look at the hardware.
At first glance, the specifications of a web server may be very similar to the type of computer used as a desktop machine by many people, and in fact most desktop machines could be used as a server, given the right software. Like desktop machines, a server will have a CPU, RAM, a hard drive and an Internet connection. However, when you look more closely at these specifications, the differences become apparent. The speed of the CPU is less important in a server, as servers do not have high-end graphics requirements. Nowadays, it is becoming common to see two or more CPUs, rather than one faster CPU. Memory sizes tend to be similar to those of desktop machines, depending on the purpose for which the server is intended. Most servers will have more than one hard drive, which allows for a RAID set-up to be used for data integrity, and the hard drives will also tend to be larger than those used in a typical desktop machine. Servers may also have more than one power supply. Bear in mind that all of these components will normally be built to a higher standard, as reliability is important.
Servers used by web hosting companies are normally housed in racks, where many servers are mounted together. However, the latest trend is for blade servers. These are “stripped-down” computers, consisting of just processors and memory, plus an input/output connection. All of the other components needed by a typical computer, such as power and disk storage, are supplied externally, through the blade enclosure. This results in significant savings in space and cost, since many unnecessary components are not needed.
Servers are kept in a data center. This facility will typically have climate-controlled rooms to house the servers, where the temperature is kept at around 68 – 70 degrees. This helps to keep the servers operating normally, as too much heat can degrade performance, or even cause a shut-down. The data center will also have multiple power supplies, including stand-by generators, to ensure that all systems will still function even if the main power supply fails. There will also be extensive fire detection and prevention devices installed in case of fire.


The overarching goal of our research is to develop machine learning models for complex, unstructured, and heterogenous data. Some of our ongoing projects are described below.
Structured prediction models enhance modeling power by using structured representations. Most structured prediction models are discriminative models, impacting the ability to perform full bayesian inference on these models. In this project, our goal is to come up with a structured generative models that are capable of encoding structured priors on the parameters, instead of flat Dirichlet priors, which are not capable of incorporating how the different parameters are constrained. Hinge-loss Markov random fields (HL-MRFs) are a recently developed structured prediction framework. Our goal is to develop custom-defined generative models using HL-MRF priors and develop algorithms for inference and learning in these models.
People: Yue Zhang
In this project, we focus on extending deep generative models such as variational recurrent neural networks (VRNNS), variational autoencoders (VAE), and generative adversarial networks (GANs) and adapt them to applications where data generation is an important requirement. One such problem for which we are actively developing models is energy disaggregation, disaggregating energy signals into their component appliance signals. These deep latent variable generative models combine the prediction power of deep learning models and representation power of structured prediction/graphical models. Existing work on energy disaggregation do not particularly pay attention to generating “new signals” accurately, which we plan to achieve in this work. Generating signals accurately can help in creating new data instances, helping in reducing sensor deployment and data collection cost in this important energy problem. We eventually plan to develop advanced variants of these models and expand to many other interesting application domains.
People: Gissella Bejarano, David Defazio
This project focuses on developing structured latent variable models for learning the different relevant latent factors in computational social science problems. One such problem that we are actively working on is understanding the development of addiction. Several linguistic, psychological, and structural attributes and their relationship with one another play an important role in the development of addiction and subsequent recovery from it. Latent variables that are learned based on these interdependencies help in abstracting and accurately understanding the role played by these different attributes, allowing us to understand the process of development of addiction and recovery from it accurately.
People: Yue Zhang
Cyberbullying is a serious problem in social media and can lead to several psychological problems. In this work, our goal is to develop models to detect the presence, severity, and different coarse and fine-grained bullying categories in online interaction data. The sensitive nature of this data makes unsupervised and weakly-supervised models lucrative for this problem. We aim to develop semi-supervised/weakly supervised models to detect the presence and severity of bullying across different coarse and fine-grained bullying categories.
People: Yue Zhang, David Defazio
Resource allocation is an important problem in urban environments. In this work, we build structured models for jointly predicting demand and response times in urban settings. We are leveraging and extending a continuous variant of conditional random fields, Gaussian conditional random fields, to jointly predict demand and response times. One such problem, where we are actively testing our models is 311 service calls. We plan to construct online variants of this algorithm and expand the domain of application to many urban data settings.
People: David Defazio


RAILGUN heavily leverages Zero-Knowledge Proofs (ZKPs). ZKPs allow for advanced logic and contract interactions without any information leakage and are a revolutionary tool for privacy preservation.
What is a zk-SNARK?
Zero-Knowledge proofs are methods whereby one party, the prover, can mathematically satisfy another party, the verifier, the veracity, or truth of information without revealing the originating details of the information. This is achieved by the prover passing components of mathematical problems that relate to the truth of the information being proved onto the verifier multiple times. These interactions occur until the verifier is satisfied that it is statistically impossible for the information to not be true or is being faked by the prover, all without revealing the contents of the verified information.
zk-SNARK stands for “Zero-Knowledge Succinct Non-Interactive Argument of Knowledge”. Put simply, a zk-SNARK is a form of ZKP that does not require direct interaction between the prover and verifier. Rather, they achieve their non-interactivity through the prover simulating the interactions between prover and verifier, and the verifier simply needs to check that the simulation was performed correctly. These proofs rely on computational assumptions that cannot be cracked or will take millions of years to crack with currently available computational power.
For zk-SNARKs to be “succinct”, the proof size and verification cost must be small, logarithmic, or lower. Elliptic curves allow for smaller key generation and therefore more succinct ZK proof outputs. Elliptic Curve Cryptography use points on an elliptic curve graph to generate public and private keys from mathematical equations between the points on the curve. They form the basis of the RAILGUN privacy system as zk-SNARKs allow a smart contract to act as a verifier. The verifiers in RAILGUN’s privacy system are the smart contracts themselves. This breakthrough was powered by EIP 197 and EIP 198 which together enables RAILGUN to generate zk-SNARK circuits on-chain. These zk-SNARK circuits are created on the client side and can then be submitted for confirmation on-chain.
zk-SNARKs can prove the veracity of any form of information, such as valid unspent token balances or, in other terms, who has the right to spend what asset on a blockchain without revealing details about the person originating the transaction.
What is a circuit?
Within RAILGUN, zk-SNARKs take the form of arithmetic circuits. Arithmetic circuits are like Boolean circuits or even hardware circuits in computers/electronics. Like all other circuits, they contain wires and gates. Wires transmit information and gates are conditions that must be met for information to move through all the way until it reaches an output. In an arithmetic circuit like the ones used in RAILGUN, the gates are mathematical operations like addition or multiplication. In the context of RAILGUN’s zk-SNARKs, circuits are how verifiers can reach mathematical certainty that provers are providing true information.
For RAILGUN’s privacy system, zk-SNARK circuits prove the validity of a transaction senders address and balances by checking they have a corresponding note on the Merkle Tree.
RAILGUN's zk-SNARK Circuit Design
The advanced cryptography contained in RAILGUN’s privacy system uses multiple circuits to enable complex transaction types. Each circuit is differentiated by the number of inputs and outputs and together they form the cryptographic basis for RAILGUN.
Multiple circuits are needed to account for different transaction types as circuits require the number of signals (that is inputs and outputs) to be instantiated at the setup phase. For example, a transaction that sends DAI to 2 different 0zk addresses might require a circuit with 1 input to 2 outputs. Extending this idea, a transaction that sends DAI comprised of 7 UTXO balances to 2 0zk address would require a 7 to 2 circuit. Inputs in these scenarios are equivalent to UTXOs and outputs would be recipients.
Currently, there are 54 circuits, each with different numbers inputs (UTXOs) and outputs (UTXO destinations). Circuits can be chained together to handle all possible combinations of UTXOs and outputs and the system will automatically route a transaction through the most gas & cost efficient combination.
RAILGUN also supports multiple inputs to singular outputs, such as 5 to 1. These circuits are used for multi-sends, where users send more than 1 token type in the same transaction to a singular recipient. They are also useful for swaps where the price of the token has changed, leaving some leftover change in the original swap token or for paying a Relayer fee in a token other than the one being sent, e.g., if WETH is sent as a Relayer fee to send DAI.
RAILGUN’s circuit design is flexible in terms of supporting not just ERC-20 tokens and RAILGUN can Shield ERC-721 and ERC-1155 NFTs. For example, with RAILGUN’s circuits and smart contracts, users could potentially provide liquidity on Uniswap v3 privately and shield their LP NFT privately as well. This kind of composability is only possible with the flexibility of RAILGUN’s privacy system and is a result of it being designed from the ground up for real world DeFi use cases.


Project Page on Human-Robot Collaboration
Hong (Herbert) Cai and Yasamin Mostofi, UCSB
|Predicting human visual performance for optimal query||Co-optimization of sensing tour and human collaboration||Optimal path planning for robotic field sensing with human assistance|
Robots are becoming more capable of accomplishing complicated tasks these days. There, however, still exist many tasks that robots cannot autonomously perform to a satisfactory level. As such, it is of great importance to properly include humans in certain robotic operations since robots can benefit tremendously from asking humans for help. However, human performance may also be far from perfect depending on the given task.
In this project, we design human-robot collaboration techniques by 1) predicting human task performance and response, and 2) incorporating such prediction into the optimization of robot field decision-making, sensing, and path planning. For instance, given a specific task, humans may not be able to provide a satisfactory performance if the task is too challenging (e.g., a visual search task where the captured image is extremely dark). Thus, in order to properly query humans, the robot needs to predict human performance.
In this project, we show how to equip robots with the capability to predict human performance. More specifically, for visual tasks (e.g., visual searches), we propose a machine learning-based pipeline that can predict human visual performance probabilistically, for any visual input (RSS16 paper, project page, data/code). We have released the code and data for the learning pipeline, which is based on several MTurk data (RSS16 project website). Such predictions can then be utilized for the optimization of human-robot collaboration in several different applications, as we have shown with several experiments on our campus (RSS16 paper, ACC15 paper). In other parts of our project, we focus on the joint optimization of human collaboration and robotic decision making (e.g., sensing, path planning, communication), under resource constraints. For instance, in our ACC 2016 paper, we have shown how robotic site visit, with human collaboration, can be solved, and mathematically characterized the optimal solution. In our book chapter, we have considered the optimization of the collaboration of multiple robots and a human operator under resource constraints. Please see the papers below for more details.
Project team members: Prof. Yasamin Mostofi and Hong (Herbert) Cai
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Arjun Muralidharan, Chitra Karanam and Saandeep Depatla for helping with the experiments.


Zebra® DS3600 Scanner
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- Zebra’s 3600 series offers industry-leading scan performance on 1D and 2D bar codes – whether it is a high-density barcode, displayed on the screen of a mobile phone, under heavy shrink-wrap or printed on paper and damaged or dirty
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This project is my self research in my undergraduate school.
I believe this is the first smart lock pin which can automatically detect the weight you select on the fitness equipment like seated row machine, Chest press machine and so on.
The blue one is the lock pin. I made a smart one to replace it to automatically detect the weight and the movements.
Figure 1: the sensor design draft
Figure 2: the sensor renderings
I used SLA to print the case.
Figure 3: the sensor case
Figure 4: the inside structure of the structure
I used AltiumDesigner 14 to designed the infrared sensor board according to the sensor datasheet and make it to a printed circuit board.
Figure 5: the infrared sensor schematic
I designed the power system. I used a Li-ion battery as the main power supply and I converted it to 3.3v for both sensor and MCU.
Figure 6: the power system schematic
Figure 7: the circuit system (from left to right: infrared sensor; powersystem & microcontrolloer(CC2541 TI); lithum battery)
Figure 8: put these in the 3D printing case
I made a poster prensentation in ISIPS 2016.
Figure 9: poster presentation in ISIPS 2016
I had a invention patent for this project.


2018-2019 After School Science and Technology sessions
The 2018-2019 school year includes exciting and challenging designs in flight, telescope construction, circuitry, hydroponics, machine design.wearable technology, LEGO Robotics (LEGO WeDo 2.0 and LEGO EV3),Video game design and Coding.
Classes meet once a week for approximately 60 minutes. We can customize sessions based on your need. Please email or call us for details.
Club SciKidz; Where Science and Technology Connect!
1. Come Fly with Me! (Grades 3-5)
- During this engineering design process, students will explore Bernoulli’s Principle, as they build various types of aerospace vehicles, and discover Newton’s Law of Inertia. STEM Challenge: Design and Build an airplane that will travel 15 feet.
2. Cosmic Cookie Dough (GradesK-3)
- Students will study the Earth’s moon, gravity, moon phases, tides, and rocketry. STEM Challenge: Design and build a telescope.
3. It’s Electric! (Grades 3-5)
- Investigations in static electricity, structure of the atom, and building circuits and switches. STEM Challenge: Design and build a dance pad.
4. Pull Your Weight ( Grades K-3)
- Explorations include studying different types of pulleys, levers, catapults and cranes simple and complex machines, and Newton’s Third Law of Motion. Solve real world challenges by creating prototypes of these objects and testing them in class and at home! STEM Challenge: Design and build a crane to lift a heavy load on a new space colony on Mars.
5. Wearable Circuits ( Grade 3-5)
- Our young scientists will experiment with electronic devices, circuits, and wearable technology. STEM Challenge: Design and build an LED book light.
6. Water Works ( Grade K-3)
- Students explore different types of hydroponic systems, seed germination, and photosynthesis. STEM Challenge: Design and build a hydroponic garden prototype used by the future astronauts on the Mars colony.
6. Icky, Gross, Spooky Science (Grades 3-5)
- Activities will vary depending on the age group in the class. What young scientist doesn’t like a little mess and fun while learning to do science? Kids will use household products to create fake blood and Ph paper from Cabbage Juice. They will also dissect owl pellets and grow bacteria to learn about germs. We won’t save the best for last though, we will concoct our own gravity defying GOO and end with all scientist’s favorite—Fun Fantastic Explosions!
7. Jr. LEGO Robotics (Grades 1-3)
- Designed for 1st to 3rd graders. This program introduce LEGO WeDo 2.0 model builds! Students will learn how to code and program LEGO WeDo robot builds to move. Construct a Giant that awakens when their is movement nearby! Build a racing car and a jumping monkey all with Legos and coded by you!
7. Robot Adventure (Grades 3-5)
Discover the fantastic programming possibilities with LEGO EV3 robots! Using LEGO EV3 software, learn basic and advanced programming. Your camper will start with basic programming to move and steer a robot rover. Quickly advance to learn loops and incorporating touch and ultra-sonic sensors in your programming.
7. RPG Game Design (Grades 3-5)
Do you want to be the next master video game creator? Use the same software the professionals use and create your own Role Playing Game! Design your own custom game map, characters and enemies! Your imagination is the limit as you fill your world map with land, oceans, deserts and more! Be the architect and create your own custom buildings and castles! Make your friends and family characters in the game! At the end of the session, you will be able to take home our very own video game that you can play on a PC!
Call us to discuss if topic /subject of your interest not listed. We can customize after-school program based on your need.