Network monitoring is an integral part of IT in the corporate world. It can help sound alarm on potential problems such as improper configurations that will help save your firm a lot of resources. Even then many corporations question the importance of network monitoring. The thing is, network monitoring is about maintaining and optimizing your network’s health. Although the primary purpose is to ensure that your network keeps running, network monitoring is a great way to improving your IT infrastructure performance. And this can either be done in-house or by a third party maintenance team. But, first, let explore all you need to know about network monitoring before deciding on the best solution for your business.
What is network monitoring?
Networks are the core of any modern company, and any breaches and slowdowns are costly. Monitoring involves watching your entire internal network, including servers, traffic and devices. This helps determine and address likely issues as they occur, thus preventing network failures. Network monitoring systems help administrators monitor the company’s tool effectively. They vary based on the company’s size and needs. You can visit www.centricsit.com to know all about third-party maintenance for your company. Network monitoring systems are tools used by administrators in monitoring their networks effectively.
How does network monitoring work?
Network monitoring involves different techniques for testing the functionality and availability of the network. Once the data is collected, an alert is sent out by your network monitoring software if results aren’t within a specified threshold. Usually, network managers set the thresholds to define acceptable performance, thus programming the monitoring software to send an alert whenever the data signals slow response time, slow throughput, unavailable devices, or high error rates.
What does Network monitoring keep track of?
Choosing to have a network monitoring software in your business is as vital as deciding what to monitor with a network monitoring system is as important as choosing to have one. Here are some key areas you can consider tracking on your network.
All applications that run on your network must always function optimally. A network monitoring system can test whether they are functioning correctly. The system can check the response time and availability for the network-based databases, cloud services, virtual machines, and others to ensure that they are not slowing down your network.
Monitoring how much bandwidth your company uses can help you ensure that everything is running smoothly in your company. If you find devices that use more bandwidth than you would like, you should always consider replacing them before they slow down the network.
Always test the uptime and reliability of the servers in your organization. These include email servers, DNS servers, web servers, and others. It ensures that all the servers are consistent with their functions.
Network monitoring systems have automatic discovery devices that log and track devices. They can segregate devices according to the type of service and IP address which can help the company plan for future growth.
Network monitoring is not limited to a single type of network. Any network at any level of complexity can be monitored with the ideal system.


Why do you need a cheap monitor?
I need a computer monitor.
If you don’t need a monitor, it’s not worth it.
I need one to watch movies, read the news, read an article on the internet or watch a live sporting event.
But if you do need one, there are some of the best monitors on the market right now.
I recommend Dell’s new 12″ LED LCD monitor.
The screen has an excellent viewing angle and a bright, colorful screen.
The resolution is 1280×720 and has a 178 degree viewing angle.
The colors are vibrant and the colors are accurate.
I love the Dell 13 monitor because of the contrast.
The Dell 13 monitors come in three different sizes: 13.6″ 2760×1440, 14.4″ 3840×2160, and 15.6″.
The Dell 14 and 15″ models are the most expensive.
Dell also offers a 16″ version of the 13″ and the 17″ model for less than $600.
Dell sells the 13.1″ 2780×1520, 17.2″ 3820×2120, and 17.4″-18″ models.
The 14″ model comes in two sizes, 13″ 2480×1600 and 17″ 2560×1600.
Dell’s 17″ and 17 ” 2780X1740″ monitors come with a wide viewing angle, a high refresh rate and a wide color gamut.
You can even adjust the viewing angle to your liking.
You need a 27″ or 28″ model of a monitor to get the best performance and viewing angle without breaking the bank.
Dell has also introduced a new 13″ 2740×1080 monitor.
This is the largest screen you can get for under $500.
I have not tested this monitor yet but the viewing angles are excellent.
If I had to choose between a monitor that has a wide screen and one that has an adjustable viewing angle with a lower price tag, I would choose the adjustable viewing angles.
You don’t have to spend a lot for a monitor if you don-t need a lot of monitors.
You just need a good monitor.
You will also want a wide monitor to view movies.
You should also look for a high-resolution monitor that offers the highest quality for viewing video.
Dell and Acer both have monitors that have a wide 144 degree viewing area.
You won’t need to spend too much on a large display if you have a 27.4 inch monitor.
There are many cheap monitors that offer similar viewing angles and a high resolution, but they can be a bit more expensive.
If your budget allows you to have the widest viewing angle you can, I recommend the 27″ Dell U2716DG for under half the price of the 27.8″ U2718DG.
You might be surprised at the price.
The U2717DG, U2719DG and U2720DG monitors are also cheap.
Dell recommends the Dell U2413DG as a replacement for the U2715DG if you need to replace a monitor.
Other brands of monitors offer cheaper monitors, but you can also look at Dell’s 15″ and 15 ” 27″ models for less.
Dell does offer a 15″ model with a 144 degree screen and a 13″ model without a 144-degree screen.
If there is a large screen available, the Dell 27″ 27-inch 2780 X1740 is the best for viewing movies and games.
If that’s not enough, the 2740 X1750 has a 144Hz refresh rate.
It’s one of the most powerful and accurate monitors you can buy.
If it comes with a backlit keyboard, the monitor offers a wide 178 degree screen.
I prefer a high color gamu- tion screen for movies.
If the monitor has a high brightness, you can easily adjust the brightness to your taste.
The brightness control is on the right side of the screen, not on the left.
You have the option to set the brightness of the monitor to 100, 125, 150, or 200.
You may want to turn it down to 100 if you want to watch videos on a black screen.
There is no option to turn the monitor off.
I do recommend buying a monitor for the best viewing angle possible.
It will save you money.
You could save a lot if you buy a monitor with an adjustable screen angle.
But you won’t be able to watch the latest movies on Netflix or watch live sports with your favorite channel on your computer monitor, so you’ll want to save money.
The monitor should have an adjustable backlight for maximum contrast.
If not, you’ll need to purchase a backlight controller to make the monitor brighter.
If this monitor is too bright, you won to have to buy another monitor.
That’s why it’s important to buy monitors that are not too bright.
This can be an issue if you spend a ton of money on monitors.
I would recommend buying at least one monitor


I have come to the conclusion that, in one or two generations at most, desktop computers may change from being a platform to be just an access point. And similar thing may happen to consoles (which are just specialized computers). Laptops will likely see a similar development, but they may be need to do actual computing without network access.
So, is it possible that in the future consumer’s computer hardware actually becomes less powerful? Well, I think so, but only on the outside.
This conclusion is based in current developments: new streaming services like Google Stadia promise to provide low latency experiences enabling tasks like playing computer games that are executed remotely. This is a difficult task because these experiences must have low latency: when playing a game, there should be no perceived delay between the execution of an action (like pressing a keyboard) and getting the response from the computer.
Note that it does not matter if Google is able to do it. Sooner or later, some company will be able to make it happen.
Taking this idea further, I can see how any extended reality (XR) system can benefit from these developments. One of the biggest problems of VR (and in some cases AR) is that a lot of processing power is required to create realistic/convincing virtual worlds. Nowadays this is solved by:
a) Attaching the headset to a (powerful) computer, which reduces mobility.
b) Through an embedded system, which provides mobility but reduces computing power and limits the autonomy.
Currently, none of these provide a realistic virtual experience.
But what happens if we remove the load of processing the data? when these processes are done remotely, there is virtually no limitation* to the available computer power. The XR system only needs to be able to interpret and display what receives from the outside. Autonomy and battery life will still be an issue because data transfer also consumes a lot of power. Yet processing power will not be a factor anymore (or at least, it can be minimized). It is far easy to develop one efficient system that multiple ones that also interact between themselves.
This ‘unlimited’ power can come directly from different places: a server farm localized close** to the user that asks for the process is one example. Another option getting traction is to use edge computing where multiple small devices do a fraction of the whole process and then all information is combined when it comes back to the user. The latency in the second case is reduced because these devices are very close to the delivery end point (even in the same location).
I believe that this is very likely to happen: it does not matter the purpose or the application. It is very difficult to think in a future where the flow of data will not increase (if not exponentially, at least linearly). It can be to stream games in 4K, for 8K content (and higher) or websites powered by WebGL displaying high end graphics. The speed of the data processing and transfer must increase in a more interconnected future.
Furthermore, it seems plausible that the following business model can work:
– Customers make a ‘small’ investment upfront (for the access point). This may be partially or fully subsidized as well.
– Then customers pay a monthly fee (subscription) for the continuous use of the remote system (hardware and applications).
In fact, that is the direction that Microsoft and Sony seem to be taken with Xbox Game Pass and PlayStation Now, respectively. Will we see a generation of consoles less powerful than the previous one?
As an isolated event, this may not seem important. However, if we add other new technologies like autonomous cars, which can remove the necessity of owning a car. I start to ask myself: how will ownership of things look like in the future? and also, what other ‘things’ that we own (and expect to always own) will have a similar disruption in the near future?.
*This will be case for probably 99% of the applications that people will use. There are of course certain types of tasks that require a huge amount of computing power like some scientific simulations where even a supercomputer falls short. These will also benefit for decentralized systems, but probably in different ways (for example, for intermediary steps). I don’t take these in account because although very cool, these systems are not the norm but the exception.
**Close to reduce the latency of the process. Although extremely fast, information does need some time to reach the remote system. To load a website this time is not really important, but to get low latency, everything matters.


TSA checkpoint at Capital Region International Airport gets new state-of-the-art 3-D scanners to improve explosives detection
LANSING, Mich. — Two state-of-the-art advanced technology Computed Tomography (CT) checkpoint scanners that provide 3-D imaging have been installed and are in use at the Transportation Security Administration checkpoint at Capital Region International Airport (LAN).
“Along with providing critical explosives detection capabilities, this new technology improves the ability for our TSA officers to determine whether an item inside a carry-on bag is a possible threat,” said Michigan TSA Federal Security Director Steve Lorincz.
The system applies sophisticated algorithms for the detection of explosives by creating a 3-D image that can be viewed and rotated on three axes for thorough visual image analysis by a TSA officer. If a bag requires further screening, TSA officers will inspect it to ensure that a threat item is not contained inside.
“We are pleased to see TSA continue to make important technology enhancements to ensure the safety and security of our travelers here at the Capital Region International Airport,” said Nicole Noll-Williams, president and CEO of the Capital Region Airport Authority. “The system upgrades will allow passengers to quickly clear security and add to a stress-free travel experience.”
The 3-D imagery allows TSA officers to manipulate the image on screen to get a better view of a bag’s contents and often clear items without having to open a carry-on bag.
“This state-of-the art technology helps reduce touchpoints during this pandemic at the checkpoint, and it also reduces the need for pulling aside a bag to be opened,” Lorincz said.
This equipment is similar to what is used to scan checked baggage for explosive devices. It has been “sized” to fit at checkpoints to create such a clear image of a bag’s contents that the system can automatically detect explosives, including liquids, by shooting hundreds of images with an X-ray camera spinning around the conveyor belt to provide TSA officers with the three-dimensional views of the contents of a carry-on bag. Checkpoint CT technology should result in fewer bag checks. Passengers using this machine will be permitted to leave laptops and other electronic devices in their carry-on bags.
For the most up-to-date information about CT and to view a video of the X-ray monitor, visit TSA’s Computed Tomography page.
The Transportation Security Administration was created to strengthen the security of the nation’s transportation systems and ensure the freedom of movement for people and commerce. TSA uses an intelligence-based approach to security and works closely with transportation, law enforcement, and intelligence communities to set the standard for excellence in transportation security. For more information about TSA, please visit our website at tsa.gov.
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As part of our Laboratory Services, we use fully-automated current diagnostic technologies based on scientific evidence, which offer accurate and reliable results with short turnaround times around-the-clock.
- Point-of-care testing
Fully-automated preanalytical systems available at our laboratories automate the processes before the analysis and thus, guarantee timely and accurate results. The Smart Aliquoting Unit integrated into the system eliminates the need for laborious manual aliquoting, transfers from primary to secondary tubes, and labeling steps, reduces labor costs, and minimizes sample preparation errors.
The open architecture can connect to multiple types of analyzers, thus offering a potential to expand both in terms of size as well as test types at the laboratory as demands change over time.
The system delivers accurate and reliable results for any laboratory operation, which is of paramount importance for patient safety.
- Medical Support Services
- Information Technologies
- Technical Services
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We comparing two approaches to count the occurrences of numbers in a CUDA array.
The two approaches use CUDA Thrust:
- Using thrust::counting_iterator and thrust::upper_bound, following the histogram Thrust example;
- Using thrust::unique_copy and thrust::upper_bound.
A fully worked example is available on our GitHub page.
The first approach has shown to be the fastest. On an NVIDIA GTX 960 card, we have had the following timings for a number of N = 1048576 array elements:
First approach: 2.35ms First approach without thrust::adjacent_difference: 1.52 Second approach: 4.67ms
Please, note that there is no strict need to calculate the adjacent difference explicitly, since this operation can be manually done during a kernel processing, if needed.


The robust and compact 815DT smart differential pressure transmitter from SOR Inc. is designed for applications in hazardous locations and hostile environments where a compact low cost option is preferable to a traditional style transmitter. The 815DT excels where many differential pressure transmitters fail.
Where a traditional differential pressure transmitter would be too expensive and bulky for an application, the affordabe 815DT can provide continuous measurements with most industry communication protocols. Along with an industry leading 3 year warranty, the 815DT is the perfect solution for reliable measurement in many differential pressure, level and flow applications.
– A low cost compact differential pressure transmitter is a great way to measure pressure drops across filters to indicate clogging.
– Without proper monitoring, distillation columns can become backed up causing damage to pumps, as well as causing other problems in the separation process. Installing a differential pressure transmitter can show early warning signs of a back-up preventing damage to equipment and minimizing down time.
– High vibrations can damage process connections. With a low center of gravity the 815DT is a better solution for high vibration environments.
– The 815DT is a low cost alternative to expensive level transmitters. It can provide continuous measurement that can be integrated into a PLC or wired directly to a pump or alarm
1-5 VDC (low-power) mode of operation output
Modbus RTU (RS-485) serial communications
Configurable normally-open solid state switch output (SPST)
±0.10% (URL) accuracy (continuous output)
316 stainless steel, explosion proof housing
Compact: 2.2 in./55.9 mm face to face dimension
Hermetically sealed leads
Pressure ranges: 0-138 in H2O (0-5 psid) to 0-500 psid
Turndown: 5 to 1
Zero and span magnetic targets located on housing
NEMA 4X, IP66 housing
FM and ATEX in U.S., Canada and Europe
3 year warranty


Trudi Hoogenboom, Ph.D., Planetary Geophysicist
- Tel. +1 (281) 768 1209
- Email: TrudiHoogenboom
- Twitter: @trudihoogenboom
Me and my planetary science
I am a planetary scientist interested in understanding the processes that modify the surfaces and lithospheres of the icy satellites, Io, Venus, Mars and Vesta. Studying these processes provides key clues for understanding how icy satellites and solid bodies formed and evolved. I analyze imaging data sets, map geologic features using GIS software and develop/use numerical (viscous/elastic) models (constrained by satellite gravity, topography and magnetic data).
I am currently finishing up a project mapping and quantifying secondary craters on Ganymede and Rhea to improve age estimates of the outer satellites. I am also working on improving our understanding of Ganymede’s interior by applying potential field data techniques primarily used for resource exploration on Earth.
My past work has included the development and testing of a numerical model of Rayleigh-Taylor instability to explain coronae formation on Venus, estimating the thickness of the elastic lithosphere in the Northern lowlands of Mars using Mars Global Surveyor data, geologic mapping of the mid-latitude quadrangle V-12EW on Vesta (including the south polar structure) for the DAWN Science team and mapping grabens on Io using all available images from Voyager and Galileo.
- Arctic Planetary Science Institute
- Lunar and Planetary Institute (LPI), Houston, TX, USA
- NASA Jet Propulsion Laboratory (JPL), CA, USA
Top five publications
- White, O.L., P.M. Schenk, F. Nimmo and T. Hoogenboom, A new stereo topographic map of Io: Implications for geology from global to local scales. Journal of Geophysical Research – Planets, Vol. 119, Issue 6 ,2014. http://doi.org/10.1002/2-13JE004591
- Smrekar, S.E., Hoogenboom, T., E. Stofan and P. Martin, Gravity Analysis of Parga and Hecate Chasmata: Implications for Rift and Corona Formation, Journal of Geophysical Research – Planets, Vol. 115, E07010, 2010. doi:10.1029/2009JE003435
- Hoogenboom, T. and S.E. Smrekar, Elastic thickness estimates for the Northern lowlands of Mars, Earth and Planetary Science Letters, Vol. 248 (3-4), 2006. doi:10.1016/j.epsl.2006.06.035
- Hoogenboom, T. and G.A. Houseman, Rayleigh-Taylor Instability as a Mechanism for Coronae Formation on Venus, Icarus, Vol. 180, Issue 2, p. 292-307, 2006. doi://10.1016/j.icarus.2005.11.001
- Hoogenboom, T., S.E. Smrekar, F.S. Anderson and G.A. Houseman, Admittance survey of type 1 Coronae on Venus, Journal of Geophysical Research – Planets, Vol. 109, E03002, 2004. doi://2003JE002171JGR
Other achievements, positions of trust, etc.
- 2010 – Current: VSSEC – NASA Australian Space Prize Review
- 2006 – Current: NASA proposal panel reviewer
- 2006 – Current: Journal paper reviewer for Journal of Geophysical Research, Icarus, Earth and Planetary Science Letters, Geophysical Journal International, Geology.


While the two giants, Apple and Samsung, in the mobile phone industry fight it out with their new launches of flagship phones, there are a few Android phones that pack great features with smaller price tags. If you are still stuck in a contract with your mobile service provider, getting a new phone can be a hefty sum to fork out for the high-end models. Our picks of mobile phones within an inexpensive range of SGD$560 to below SGD$850 (without a contract!) will give you your money’s worth.
Our picks of 5 inexpensive Android phones
1. Xiaomi Mi 5 (Plus Version)
Xiaomi shook the mobile phone market a few years back with the launch of their affordable mobile phones that were running out of stock constantly due to massive demands. Today the brand boasts of a wider range of phones that fits different budgets and Xiaomi Mi 5 is one that has caught our attention. With a price tag of just SGD$559, the phone packs a Qualcomm Snapdragon 821 2.35GHz Quad Core. The phone also offers high-speed tri-band 4G carrier aggregation and Quick Charging 3.0 that fills the battery up to 83% in 30mins. It also comes with dual cameras and a state of the art fingerprint recognition technology from Qualcomm’s Sense ID ultrasonic fingerprint sensor which works underneath glass with precision.
Pros: Affordable, Quick Charging, Fast Download/Upload speeds, Dual Camera
Cons: No expandable storage, only 3GB RAM
2. OnePlus 3
OnePlus is a relatively new forerunner in the China mobile market, which focused on providing end users with high-end specifications at mid range pricing. For the launch of OnePlus 3, they are surely proving to give consumers more buck for their money – staying true to their branding “Never Settle”. The metal uni-body smartphone is pleasing to the senses, powered by Qualcomm Snapdragon 820 quad-core processor. And here’s the highlight: the phone comes with 6GB RAM to ensure your multi-tasking won’t cause lag on your phone! You will also be impressed with its intuitive fingerprint sensor and dash charging feature that gives you 100% juice under an hour. All of these at a price tag of a mere SGD628.
Pros: Affordable, 6GB RAM, Quick Charging
Cons: No expandable storage
3. Sony Xperia X Performance F8132
Sony had branded their latest phones to be dustproof and water-resistant, this Xperia X Performance is no exception. Packed with a Qualcomm Snapdragon 820 processor, 23MP rear camera and 13MP front camera, the sleek design phone also comes with expandable storage. It comes with PS4 remote play for the console gamers out there and only costs SGD$770.
Pros: Water resistant & dust proof (weather sealed), expandable storage, 13MP front camera
Cons: Only 3GB RAM, no fingerprint sensor, no fast charging
4. ASUS Zenfone 3 Ultra ZU680KL
Just newly launched in August this year, Zenfone 3 Ultra is the shiniest metallic phablet to get your hands on at just SGD778. It stands out with a 6.8-inch display, a 23MP rear camera and a whopping battery of 4600mAh battery capacity with reverse charging capabilities, which means you can charge your other devices with it! It comes with Octa-core Qualcomm Snapdragon 652 CPU, 4GB RAM and 64GB storage which is expandable up to 256GB.
Pros: Impressive display, long battery life, expandable storage
Cons: Not the latest chipset, might be too large for petite users, no fast charging
5. Huawei P9
What really impressed us about the Huawei P9 is that it has dual 12MP Leica brand lens with manual settings capabilities. It also has one of the fastest chipset processors for phones in the market today – HiSilicon Kirin 955 chipset octa-core CPU. With 64GB storage and 4GB RAM, it is reasonably priced at just SGD$842 for its outstanding specifications and absolutely stunning aluminium body with sand blasting finish.
Pros: Powerful chipset, Great dual camera with brand lens
Cons: User interface comes with bloat software, no fast charging
These are alternatives worth considering when you are purchasing your next phone, with attractive prices and similar specifications with the more expensive phones. Start chatting with us via Facebook Messenger by saying Hi. If you already have your mind set on a particular model, all you need to do it to type in the item name for example “OnePlus 3” and our friendly personal shopping chat bot will display all relevant products for you. Alternatively, you can also choose “Start Shopping” option, and browse by categories in our electronics section to purchase a new mobile phone today with no risk of burns (pun intended)!
Click here to start shopping now!
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Global Digital Mobile X-Ray Devices Market Scope, Major Key Points and Forecast Till 2028
“Global Digital Mobile X-Ray Devices Market Current Trends, Products, Scope of Applications, Market Growth and Size, and Global Forecast Till 2028” is an upcoming report tracked by the research analysts at MarketResearch.biz.
Scope of Digital Mobile X-Ray Devices Report:
Digital Mobile X-Ray Devices Market report calculates the market value and growth rate based on market dynamics, growth persuading factors. The overall Digital Mobile X-Ray Devices industry knowledge is based on current industry news, opportunities, and latest trends. The report includes a thorough market study and competitors landscape with the addition of a SWOT study of the leading vendors.
This report analyses also study the product and business strategy of some of the key vendors in the market. Considering the segmentation in the Digital Mobile X-Ray Devices market, key vendors in the Digital Mobile X-Ray Devices market are highlighting mergers and collaborations and advancing their supply chains.
Some of the prominent players profiled in the Digital Mobile X-Ray Devices market include Canon Inc, Siemens Healthineers, Ziehm Imaging Inc, Samsung Electronics Co Ltd, Virtual Imaging Inc, Hitachi Medical Corporation, Shimadzu Corporation, Toshiba Medical Systems Corporation, Hologic Inc, GE Healthcare, Philips Healthcare, Carestream Health and FUJIFILM Medical Systems U.S.A. Inc.
Get a Sample PDF of Digital Mobile X-Ray Devices Market Report 2019-2028 @ https://marketresearch.biz/report/digital-mobile-x-ray-devices-market/request-sample
Major Key Points Covered in Digital Mobile X-Ray Devices Market:
– Introduction of Digital Mobile X-Ray Devices with growth and status.
– Manufacturing Technology of Digital Mobile X-Ray Devices with anatomy and trends.
– Exploration of international market Key Producers with Company Profile, Product Statistics, Production Information and Contact Information.
– Analysis Market with Comparison, Supply, Consumption and Import and Export.
– Market Analysis with Market Status and Competition by Companies and Countries.
– Market Prediction of international Digital Mobile X-Ray Devices Market with Cost, Profit, Market Shares, Supply, Demands, Import and Export.
– Digital Mobile X-Ray Devices Market evaluation of Industry Chain Structure, Upstream Raw Materials, Downstream Industry.
Global Digital Mobile X-Ray Devices Market Segmentation:
Global digital mobile X-Ray market segmentation by product type:
Hand-Held X-Ray Device
Global digital mobile X-Ray market segmentation by technology:
Global digital mobile X-Ray market segmentation by application:
Global digital mobile X-Ray market segmentation by of end user:
Customize Report And Inquiry For The Digital Mobile X-Ray Devices Market Report @ https://marketresearch.biz/report/digital-mobile-x-ray-devices-market/#inquiry
After the basic information, the Digital Mobile X-Ray Devices report highlights the production. Manufacture plants, their ability, international production, and proceedings are studied. Also, the market Sales expansion in different sectors and R&D status are also covered. Then, the report spots on international prime leading market competitors with data such as company profiles, product picture, and specification, capability, production, price, cost, revenue and contact information. Upstream raw materials and downstream consumer’s analysis is also carried out. What’s more, the Global Digital Mobile X-Ray Devices Market development trends and marketing channels are examined.
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Projects > SunCam
Building upon the success of the all-sky cameras I have built in the past, I decided to turn my hand to a Sun Camera. I wanted to re-use as much of the all-sky camera interface and code as possible, so there are a lot of similarities between the two. Imaging the Sun requires very short exposures, so the Pi Camera is a perfect choice. The first task was to determine an appropriate image scale. To keep the project compact, I chose a ZWO 40mm finderscope. With the Pi camera this offers me a field of view approximately 3 solar widths high by 4 solar widths wide.
The most difficult part of the project was choosing the metalwork to build the pan/tilt frame. I struggle with the mechanical side of these projects, and excel at the technical/software aspects. I used Actobotics components to build the frame, but did spend about £200 collecting all the various parts. Once the framework was constructed I started work on the software.
Designing the software was very much an iterative process. The first task was to control the motors to position the camera. I decided the easiest way would be to carry out the alignment with the Sun manually through the web interface, and from that point on to track the Sun automatically. The code (written in C) determines the position of the Sun, and assumes the pan/tilt platform is aligned with the Sun. It calculates how far to move the motors to reach the new Sun position at set intervals as defined by the user. I found this worked, but not as well as I hoped. The main reason it didn't work reliably was caused by backlash in the gears. If the platform isn't level, this also affects positioning accuracy. To overcome this problem I added an option to automatically centre the Sun if it moves to far from the centre of an image. Each time an image is collected it determines whether the Sun is too far from the center of a frame and automatically repositions the platform if necessary. It took a while to get this code working reliably enough to cater for backlash, but after a lot of trial and error it would not track all day assuming the Sun is visible. If the Sun were to disappear behind the clouds for more than an hour or so it would have to rely on calculations alone to determine the Sun's position, and that is usually only reliable for less than an hour. I'm happy with this level of performance.
I use solar film to bring exposures down to an acceptable level and to avoid damage to the components. My C program determines the position of the Sun in the image and crops around the Sun's disc. This also helps ensure that the images stored all have the Sun positioned centrally regardless of how far from the image centre the Sun was in the actual exposure. I use a HoughCircles function in the OpenCV library for this purpose, and although it isn't always perfect, it is usually close enough.
It's a shame that a period of minimal solar activity coincides with the completion of this project (summer 2019). It is however, primed and ready for the Mercury transit later in the year. I just need to obtain a 12V batter to power the platform since I'll most likely need to find a better location than home to image in November when the Sun is low in the sky.
For those interested in the technical aspects of the project, I wrote the website in PHP styled with CSS. The website makes calls to a Python script to control the motors using an Adafruit hat. The motors are 12V Adafruit motors. Image capture is also through Python, but image post processing and analysis for automatic centring is carried out by my own compiled C code.
After setting the project for Solar imaging, I realised it should work just as well on the Moon, albeit without the solar filter. I updated the code to accommodate the moon too, and surely enough it works quite well.
Here is a sample image taken with the Suncam:


Allowing 8 bits (1 byte) per component (24 bits per pixel) gives 256 levels for each component and over 16 million different colours - more than the human eye can distinguish
translation and definition bits per pixel, English-Spanish Dictionary online. The number of bits (e.g. 8, 16, 24, or 32) used to store and display the color data for a single pixel bits, which, when divided by 16, yields 2.875 bits per pixel. If this step is performed, then the 15-bit truncated color values can be used in the next step to create a smaller histogram bits-per-pixel. A little module that outputs a video file's bits-per-pixel value, i.e 8 Bits per Pixel in Paletted Images. Paletted images can be stored at either 1, 2, 4 or 8 bits per pixel (bpp), provided their pixels have at most 2, 4, 16 or 256 distinct colors, respectively Bits Per Pixel can be abbreviated as BPP. What is BPP abbreviation? All Acronyms. BPP - Bits Per Pixel [Internet]; Nov 5, 2019 [cited 2019 Nov 5]. Available from: https..
. Jump to: navigation, search. This article may require cleanup to meet As bit depths climb above 8 bits per channel, some systems use the extra bits to store more.. Microsoft recommends including at least the following formats in each icon (size and bits-per-pixel): => 16 x 16 - 4 bpp => 32 x 32 - 4 bpp => 48 x 48 - 8 bpp. How to create a favicon.ico with GIMP bits per pixel. A Dictionary of Computing © A Dictionary of Computing 2004, originally published by Oxford University Press 2004 Bit Per Pixel. Learn more about compression ratio. will tell you how many bits are in your integer image once it's read into MATLAB. It will be probably be 8, but might be 16 (not sure if jpg supports 16.. BPP or Bits per Pixel is used to denote the number of bits per pixel and the number depends on the Bits. A bit also known as a binary digit is the smallest unit of data in a computer. A bit has 0 or 1
To have more bits, you need a good video card, a monitor that support that, a good cable, and Check your display setting, if you have 24 or 32 bit colours, you have 8 bits per channels (8*3 = 24.. bits, which, when divided by 16, yields 2.875 bits per pixel. If this step is performed, then the 15-bit truncated color values can be used in the next step to create a smaller histogram Color depth or bit depth, is a computer graphics term describing the number of bits used to represent the color of a single pixel in a bitmapped image or video frame buffer. This concept is also known as bits per pixel ( bpp ), particularly when specified along with the number of bits used . The terminology for image formats can be If an image is 24 bits per pixel, it is also called a 24-bit image, a true color image, or a 16M color image He default selected one is 24 bits per pixel (8 bit) and there's also an option for 30 pixels per bit (10 bit) but I really don't know what any of that means. When I look at what my tv is capable of everything..
Many translated example sentences containing bits per pixel - Russian-English dictionary and search engine for Russian translations
As you can see, too many bits of the pixels have been changed. Now, we're going to spread... Get the first bit of the message byte. Get one color component of the pixel The bit depth is the number of bits used to encode each color channel. Today, most digital images use a bit depth of 8, meaning that each color channel in a pixel is represented by 8 bits, providing 2⁸..
Bits-per-pixel calculator. Contribute to littlstar/bpp development by creating an account on GitHub . Arguments: object. With depths of 8 and less, there are not enough bits to represent a color directly, so each pixel instead denotes an index into a table of colors
While actual 32-bit color at ten to eleven bits per channel produces over 4.2 billion distinct colors Systems using more than 24 bits in a 32-bit pixel for actual color data exist, but most of them opt for.. BPP is defined as Bits Per Pixel very frequently. Color is best represented using 24 bits per pixel, which provides about 16 million different colors but which results in much larger file sizes I'm using bit per pixel koeffitient to calculate target size or bitrate Based on that, what k (bits per pixel) should be for x264? From what I've got, for 1920x1080 used 10000kbit/s, k = 0.16-0.17
(Redirected from Bits per pixel). Jump to: navigation, search. This article may require cleanup to Systems using more than 24 bits in a 32-bit pixel for actual color data exist, but most of them opt for.. Bits per pixel - Topic:GIS - Online Encyclopedia - What is what? In 8-bit contexts, the pixel depth is 8, and each display pixel can be one of 256 possible colors or shades of gray BPP: Bits Per Pixel. What does BPP mean? The above is one of BPP meanings. Definition in English: Bits Per Pixel. BPP also stands fo
Bits per pixel - Laplacian pyramid representation. What is the difference between 'bitsperpixel' and I have been trying with a 16-bit per color (64-bits per pixel) format and either the extended Display.. Looking for definition of bits per pixel? bits per pixel explanation. Define bits per pixel by Webster's Dictionary, WordNet Lexical Database, Dictionary of Computing, Legal Dictionary, Medical.. This idea of bits per something applies to everything digital. The more bits per, the more detail available. In the case of your computer, it makes perfect sense. If your hard drive has 500 gigabytes.. So it seems like its using 8 bits (1byte) per pixel + some addressing (?). How can I have a 100-bit sized image file
Our common 24-bit RGB image size is three bytes per pixel when uncompressed in memory (so 24 megapixels is x3 or 72,000,000 bytes, which is 68.7 MB uncompressed in memory.. RGB images using 8 bit per channel will give bpp = 24 bit. Gray scale images have typical bpp of 8 So, as the number of pixels (NPixels) remains unchanged, compression ratio can be related with bpp.. stored per pixel of an image or displayed by a graphicsadapter. The more bits there are, the more colours can be. represented, but the more memory is required to store or. display the image Bits per channel are pretty easy to understand, it is the number of bit used to represent one of the This means that the 8-bit setting (BPC) is in fact 24-bits per pixel (BPP). Meaning that each pixel..
The bit depth can be described as either the number of bits used to indicate the colour of a single pixel or If you are referring to a pixel the common concept is defined as Bits per Pixel (BPP), the value.. Bits Per Pixel. By Faz, December 5, 2000 in Graphics and GPU Programming. This topic is 6891 days old which is more than the 365 day threshold we allow for new replies For some pixel formats, this may mean swapping endianness, unpacking bits, or shifting the data around. For a BayerRG8 format, the camera is sending a 8-bit mono image and the driver is going to..
Pixel Formats is a specification of how the pixels of TOPs are stored. Normally, TOPs are stored using an 8-bit pixel format. What this means is that each pixel of the TOP will have 8-bits of information for each of it's R, G, B and A channels (Red, Green, Blue, and Alpha) 32 bits per pixel (24 significant bits per pixel) If the host is in 15 ‐ bit color mode, the guest operating system°s color setting controls offer 15 ‐ bit mode in place of 16 ‐ bit mode A 2_bit indexed_color image. The color of each pixel is represented by a number; each number When an image file is displayed on a screen, the number of bits per pixel is expressed separately for..
If your image isn't indexed, you can convert it to Indexed mode before saving: A dialog appears, and you can use it to choose the preferred depth of the image: 8 bit image means 256 colors (2^8=256) In certain contexts, the term bitmap implies one bit per pixel, while pixmap is used for images with multiple bits per pixel. Many graphical user interfaces use bitmaps in their built-in graphics..
Three options are given: 24 bits per pixel, 30 bits for pixel and 36 bits per pixel. There is, however, no explanation for what these means and reading the official FAQ doesn't make it any more clear bits per pixel. Menu. Ask me anything Returns the bits per pixel of the camera associated with this session. Remarks. The following table shows when the property is readable and writable and what devices it applies to Stats. 'bits per pixel' is no one's favorite word yet, has no comments yet, and is not a valid Scrabble word
Video HDV memiliki ketersediaan warna sejumlah 24 bit per pixelnya (224 warna, atau 16.777.216 warna). Kemampuan reproduksi warna dalam teknologi digital dihitung dengan satuan Chroma.. There is 32 bit per pixel support but most don't even bother, the human eye can't even make out anything really higher than 16bpp in most cases
Hardcore Gamer: Three options are given: 24 bits per pixel, 30 bits for pixel and 36 bits per pixel. There is, however, no explanation for what these means and reading the official FAQ doesn't make it.. Hi, I'm new to image processing and I'd like to ask what is the difference between bits per channel and bits per pixel? Thank you -peggy Bits Per Pixel helps you to calculate the correct bitrate for your video. * For web video encoded with modern codecs like h.264 or VP6, a bits per pixel value around 0.1 should result in a fair quality
12 bit format used in mode 2 of the IEEE 1394 Digital Camera 1.04 spec. 16 bit YUV 4:2:2 format registered by Vitec Multimedia. I have no information on the component ordering or packing BufferedImage 1-bit-per-pixel. Orna Vel. Greenhorn. Posts: 12. posted 14 years ago. But it does not work properly - it looks like it still uses a byte per pixel. Any thoughts
RGB LED Pixel Shades: Hi everyone, in this Instructable I'm going to show you how to make a pair of LED pixel shades. Originally I created these to wear around the house at Christmas / New Years.. Operating System Version: Windows 7 (64 bit) NTFS: Supported Crypto Provider Codes: Supported 311 0x0 0x0 0x0. Video Card: Driver: NVIDIA GeForce 840M DirectX Driver Name: nvumdshim.dll.. There's a lot of per-pixel data being added in post and 4A's signature high frequency texture detail is a lot for the video encoder to handle. It's not a deal-breaker at all, but shows up more readily than other.. Broken down that's 8 bit's per three color channels - RGB. 8 bit (256 colors) image with dithering. Most computer displays use 8, 16, or 24 bits per screen pixel. It supports an 8-bit color palette and 8..
What others are saying Risultati immagini per pixel art template christmas Create A Pixel Art Game Character in graph paper drawing mario collection - ClipartXtras A bit of a detour into neuroscience today with a look at the chemical structures of some of the.. — Image Loader: fixed a bug that caused 16-bits-per-pixel Color BMP files to be decoded in OS Windows XP SP3 (32/64 bits) Windows Vista (32/64 bits) Windows 7 (32/64 bits) Windows 8 (32/64.. Compressed Bits Per Pixel2 bits/pixel. CompressionJPEG (old-style). ContrastNone. User Comment. White BalanceAuto white balance. X Resolution350 dots per inch The per-pixel quality is no match to the main snapper, and the images are noisier, and they are definitelty at the bottom end of what is offered by competing smartphones. Xiaomi Redmi Note 8T.. Pixel Per Inch. 109. Brightness. Color Support. 1.074 billion colors (10-bit). Response Time. 8 ms (normal); 5 ms (fast)
Download BitDraw - Pixel art tool en geniet ervan op je iPhone, iPad en iPod touch. BitDraw is an app that allows you drawing great pixel by pixel images and share them with your friends According to Google, there could be a massive Google Pixel 4 feature drop every quarter going forward. Yesterday's Pixel 4 'feature drop'? You can expect more of those each quarter Added support for reflection multi-samples per pixel denoising. Multi-view support for virtual reality and split-screen. For additional details, see the Real-Time Ray Tracing documentation Oct 29, 2019 - Pixel art is een van mijn favoriete vormen van kunst. het lijkt heel makkelijk maar je moet er heel veel geduld voor hebben. Een klein beetje uitschieten en het effect is helemaal weg Файл Кодек: XviD Качество: BDRip Видео: Video Bitrate .: 2154 kbps Bits per Pixel : 0.22 bit/pixel Resolution Launched during the same event as the Mac Pro, the Pro Display XDR is a large 32-inch 6K Retina Display, with a resolution of 6,016 by 3,384 giving it a pixel density of 218 pixels per inch


LAS VEGAS (KLAS) — Las Vegas’s newest attraction, Sphere, continues to unveil different experiences that break ground on the technological frontier. The latest is Aura which is described as “the world’s most advanced humanoid robot.”
According to a Sphere news release, Aura was developed using advanced technology in robotic mechanics and artificial intelligence and is one of the most expressive and life-like humanoid robots in the world.
“Our vision with every aspect of Sphere is to transform the way people experience live events, and with Aura, we are pushing the boundaries of how robotics can be used to enhance our guests’ journey through the venue,” said CEO David Dibble, with MSG Ventures, a division of Sphere Entertainment.
There will be five Aura robots to greet guests ahead of events at the Sphere, including the upcoming experience, “Postcard from Earth”, which opens in early October. Aura will also serve as the Sphere’s “spokesbot” on digital and social platforms.
The inaugural event at Sphere will be U2’s upcoming “UV Achtung Baby Live at Sphere” which opens on Sept. 29.


Technology and communication are getting to be increasingly interdependent, enabling us to access details in ways we never can before. The world wide web, for example , connects us by using a set of criteria, making it possible to send and acquire messages throughout the world. The Internet’s underlying system makes possible a large number of applications, such as video conferencing software program. This means that any kind of communication can be made possible through the Internet. The online world is a group of technologies and public corporations, and without all of them, we would not be able to use it. Various demand pull and technology push elements have caused this improvement.
In the literary works on technology and interaction, a futurologist approach offers often been used to count on the time of technology into the consumer marketplace. In one case, a futurologist has believed that a bacterial computer could possibly be available within 60 years. One more example is the development of wi-fi telegraphy. The application of wireless telegraphy has allowed pertaining to the development of video and sound signals, plus the introduction of https://technologyform.info/2021/12/29/technology-as-a-form-of-communication-2 the web.
The relationship between technology and communication is not devoid of controversy. The partnership between these areas is normally deeply interwoven with institutionalized power contact. These associations affect everyday routine and the work environment. They are not really stable or perhaps symmetrical, and for that reason it is vital to examine them in order to better know the way technology has effects on the world we all live in.


Station Davis Vantage 2 weather station is designed to professional standards and provides good reliability and accuracy, but relatively cheap. With many accessories and sensors, Davis Vantage 2 (VP2) station offers scope and flexibility in the ability to handle data and configuration.
Standard Vantage 2 station consists of three main components and an internal console, which all read properly; anemometer to measure wind speed and direction, and an Integrated Sensor Suite that contains all other external sensors, such as humidity, temperature, rainfall and wind, among others.
So a Davis vantage 2 stations will always be made by an external sensor unit and the console display standard, packaged together as a single item. The station itself is full, except for the mountain, but if you want to log data into the computer, log must be loaded separately. All components of the station ready to be fixed as a single unit and it is possible to replace components or building specifications that are unique for Davis vantage 2 and the constituents to fit your needs, but generally, it will be more expensive to buy a Davis vantage 2 complete as a pre-packaged product.
Vantage 2 stations in standard, external sensors grouped into two units: an anemometer to measure wind direction and speed. And a second unit called Integrated Sensor Suite containing the sensor temperature and humidity and rain handle. Integrated sensor suite also has a place for improved solar radiation and ultra violet sensors if appropriate. For simplicity, Integrated Sensor Suite and anemometer are mounted as a single unit, but they are two completely independent parts and, practically, most are installed separately.
Integrated sensor suite consists of the rain gauge, a black conical installed above the shield of continuous white, to avoid any mistake because the temperature of sunlight fall directly on the sensor. Shield contains the sensor temperature and humidity, but, in addition, it is the place to join the circuit input sensor outside the other, with the input of the cable sensor cable is not wired.
The anemometer is provided with a twelve meters cable and therefore can be installed up to twelve meters away from the main body of the integrated sensor suite. Standard cable connection can also be purchased to increase this distance if necessary. Only to wireless Vantage 2 stations is the option to buy an anemometer transmitter separately, allowing the integrated sensor suite and anemometer mounted completely independently. Solar sensor and ultra violet light mounted on a rack shelf small sitting sideways in the rain gage.
Integrated sensor suite comes in two versions: wired and wireless. In the wireless station, a radio circuit within the shield contains a wireless transmitter. In the cable, there is a single cable that joined the Integrated sensor suite and the console, which is a significant improvement compared to the three cable stations are needed and the more old. Wireless Integrated sensor suite also included a small solar panel to complete lithium-ion battery is built to run on the sensor / wireless circuits. Power to the integrated sensor suite cables is provided through the cable wires. In addition, there are a number of optional accessories are also watching the weather for many special applications.


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Jan 26, 2024
PulseMedica aims to transform vitreoretinal disease outcomes in the blink of an eye.
Inside a nondescript office building in downtown Edmonton is an image-guided therapy company hard at work building revolutionary technology that has the potential to significantly impact eye imaging and treatment. PulseMedica, founded in 2020 by Dr. Abdul Elezzabi, Dr. Nir Katchinskiy, and Eric Martin, is poised to revolutionize how many common vitreoretinal eye diseases, like diabetic retinopathy and eye floaters, are identified, monitored, and treated.
From the instant you walk into PulseMedica’s office, you’re transported to a vibrant and buzzing open concept office-lab, designed to support their multi-disciplinary engineers to collaborate and build synchronously in real-time. Its office is no different from a beehive, with each person intensely focused on their work to build this groundbreaking medical innovation. From the whirring of machines and brainstorming chatter, you’re instantly pulled into the excitement of an eager team. With its growing team, PulseMedica is rapidly preparing to launch its image-guided therapy prototype device into the clinic in the coming months to complete their clinical trials.
The PulseMedica platform is a 3D image-guided therapy device that integrates powerful laser therapy, advanced medical imaging, and limitless machine learning (ML) for precision imaging and treatment of vitreoretinal disease. Vitreoretinal diseases exist within the clear gel (vitreous fluid) that fills the eye and retina at the back of the eye. PulseMedica’s device strives to automate the imaging and treatment process, enabling quick and precise disease targeting, thereby reducing the treatment time and reducing the risk of side effects and total time per patient, allowing for more patients to be treated each day.
An electrical engineer by training, Katchinskiy’s and Elezzabi’s vision for their device began with the Femtosecond laser research and development at the University of Alberta. Their research unknowingly led to a groundbreaking discovery in ophthalmic care having discovered a new method for treating vitreoretinal eye conditions with this laser technology. Over the years, ophthalmologists and retinal surgeons have expressed a keen interest in the potential application of femtosecond laser technology beyond its use in LASIK and cataract surgeries, such as for diabetic retinopathy and eye floaters. This enthusiasm stems from the remarkable abilities and precision of the technology.
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This paper is under review in 13th International Conference on Computer Supported Collaborative (CSCL 2019). Here is the abstract. Author: Xiaozhou Deng, Danli Wang, Qiao Jin n this paper, we present CoproStory, a collaborative tangible programming tool to support children learning programming. In recent years, many collaborative tangible programming tools were developed for children. Compared to the … Read more
This poster has been accepted in Ubicomp 2018 Author: Qiao Jin, Danli Wang, Fang Sun In this paper, we present TanCreator, a tangible authoring tool which facilitates children to create games based on Augmented Reality (AR) and sensor technologies. Combining AR elements and sensors in games bridges virtual world with realistic surroundings closely together, providing more … Read more
Cubillo J, Martín S, Castro M, et al. A learning environment for augmented reality mobile learning[C]// Frontiers in Education Conference. IEEE, 2015:1-8. Juan C, Canu R. Augmented Reality Interactive Storytelling Systems Using Tangible Cubes for Edutainment[C]// Eighth IEEE International Conference on Advanced Learning Technologies. IEEE Computer Society, 2008:233-235. Mesia N S, Sanz C, Gorga G. … Read more
Commercial Programming Products for Children
Heun V, Kasahara S, Maes P. Smarter objects: using AR technology to program physical objects and their interactions[C]// CHI ’13 Extended Abstracts on Human Factors in Computing Systems. 2013:961-966. Bouchard D, Daniels S. Tiles that talk: Tangible templates for networked objects[C]// International Conference on Tangible. ACM, 2015:197-200. Marco J, Cerezo E, Baldasarri S, et al. … Read more
Comparing Children’s Crosshair and Finger Interactions in Handheld Augmented Reality: Relationships Between Usability and Child Development
Radu I, Macintyre B, Lourenco S. Comparing Children’s Crosshair and Finger Interactions in Handheld Augmented Reality: Relationships Between Usability and Child Development[C]// The the, International Conference. 2016:288-298.
i J, Demir A, Paradiso J A. Code Collage: Tangible Programming On Paper With Circuit Stickers[C]// CHI Conference Extended Abstracts on Human Factors in Computing Systems. ACM, 2017:1970-1977. Yashiro T, Harada Y, Mukaiyama K. Plugramming: A Tangible Programming Tool for Children’s Collaborative Learning[J]. 2017:398-409. Goyal S, Vijay R S, Monga C, et al. Code Bits: … Read more
G Culbertson,E Andersen,W White,D Zhang,Jung M. Crystallize: An Immersive, Collaborative Game for Second Language Learning[C]// ACM Conference on Computer-Supported Cooperative Work & Social Computing. 2016.
Earth-Sun relationships Shelton B E, Hedley N R. Using augmented reality for teaching Earth-Sun relationships to undergraduate geography students[C]// Augmented Reality Toolkit, The First IEEE International Workshop. IEEE, 2002:8 pp. ARDental Folguera F, Juan M C, Herrero A, et al. Introducción a una nueva dimensión en la morfología dentaria: ARDental (Realidad Aumentada Dental)[J]. Gaceta Dental … Read more
This long paper is still in preparation. Here is the abstract. Author: Qiao Jin, Danli Wang Teaching children programming using tools based on TUI is an effective way to foster children’s computational thinking ability. MazeRobot is a tangible programming system designed for children of grades 1-3 with tangible input and output. Our system consists of three parts: a robot car, … Read more


While we're on the subject of RAW camera images, I highly encourage you to try Lightzone
as an alternative to Photoshop for working with fine photographic images. Instead of wrestling with endless tutorials and tearing your hair out, you can focus on the art of it.
Foveon is a company trying to bring the world of digital cameras to the level of analog film ("kodachrome"). Currently digital still photography is held prisoner by an ageing, obsolete approach to capturing ("image sensor") light in the camera. Foveon has, over a period of some 20 years, produced a remarkable digital technology which rivals analog film in it's ability to capture light in the photographic process.
Currently, this technology is available in the following digital cameras that I am aware of: Polaroid X530 (also the least expensive RAW camera on the market), Sigma SD9 (digital SLR "pro camera"), Sigma SD10. Sigma has also recently announced two new cameras based on new image sensors from Foveon, the SD-14 and the Sigma DP1.
So prevalant is the use of "video camcorder imaging-style" image sensors in professional digital still cameras (by this I mean YCrCb image capture using a CCD and pixels captured with some kind of bayer mosaic arrangement), that Adobe refers only
only to this arrangement of pixels in it's DNG (digital negative) specification.
The photographs taken with cameras featuring the Foveon sensor are, in a word, stunning in their clarity and detail. Here's some quick links I dug up: http://www.pbase.com/mjmorrison/sigma_sd10http://www.pbase.com/cameras/sigma/sd10
If you are interested in picture quality, and ESPECIALLY if you like to manipulate photos with Photoshop and want to get the state of the art, get a camera with a Foveon image sensor.
There is a great book about Foveon's quest. Along the lines of "Soul of a New Machine", "The Silicon Eye"
- I found it a fascinating read. I can't wait to try the video capabilities of the Sigma DP1 (30fps 640x480). We're looking at a camera that captures RGB at the sensor level.
Labels: foveon, lightzone, photoshop, sigma


Download Citation on ResearchGate | On Nov 30, , Juan Carlos Gómez and others published Diseño de Antenas Yagi Uda Usando. Abstract— This paper presents a simple broad band printed Yagi Uda antenna IndexTerms—Printed YagiUda antenna, Reflectors, Directors, Driven element. Yagi-Udaantenna From Wikipedia, the free encyclopedia Drawing of Yagi-Uda VHF television antenna from , used for analog channels.
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We model element number j as having a feedpoint at the centre with a voltage V j and a current I j flowing into it. A major drawback was the Yagi’s inherently narrow bandwidth. One must take into account an additional phase delay due to the finite distance between the elements which further delays the phase of the currents in both the directors and reflector s. Such a complete exact analysis considering all of the interactions antennas is rather overwhelming, and approximations are inevitable on the path to finding a usable antenna.
The feed antenna is almost always the second from the end, as shown in Figure 1. This appears to have been due to Yagi filing a patent on anfenas idea in Japan without Uda’s name in it, and later transferring the patent to the Marconi Company in the UK. Popular Mechanicspp. This will cause a phase distribution to occur across the elements, simulating the phase progression of a plane wave across the array of elements.
The first is that the larger the element is, the better of a physical reflector it becomes.
This has been computed for two exact half-wave dipole elements at various spacings in the accompanying graph.
Vertically polarized arrays can be seen on the cheeks of the P and on the nose cones of many WWII aircraft, notably the Lichtenstein radar -equipped examples of the German Junkers Ju 88 R-1 fighter-bomberand the British Bristol Beaufighter night-fighter and Short Sunderland flying-boat.
Having the reflector slightly longer than resonant serves two purposes. These elaborate designs create electrical breaks along each element both sides at which point a parallel LC inductor and capacitor circuit is inserted.
The radio waves from each element are emitted with a phase delay, so that the individual waves emitted in the forward direction up are in phase, while the waves in the reverse direction are out of phase. The length of the feed element is given in Figure 1 as F. Radio frequency antenna types Antennas radio Radio electronics Japanese inventions Amateur radio. Views Read Edit View history. This page was last edited on 23 Novemberat The use of traps is not without disadvantages, however, as they reduce the bandwidth of the antenna on the individual bands and reduce the antenna’s electrical efficiency and subject the antenna to additional mechanical considerations wind loading, water and insect ingress.
In the next section on Yagis, I’ll go further into the design of Yagi-Uda antennas. And now knowing the phase and amplitude of I 2 in relation to I 1 as computed above allows us to determine the radiation pattern gain as a function of direction due to the currents flowing in these two elements.
Online Calculator Yagi Uda Antenna
Now the difficult computation is in determining that mutual impedance Z 21 which requires a numerical solution. It is simple to construct and has a high gaintypically greater than 10 dB. The above description is the basic idea of what is going on with the Yagi-Uda antenna.
That is, they reradiate power which they receive from the driven element they also interact with each other. The Yagi antenna consists of a single ‘feed’ or ysgi-uda element, typically a dipole or a folded dipole antenna.
As alluded to in the previous paragraph, the lengths of the directors are typically less than the yagi-dua length, which encourages wave propagation in the direction of the directors. Consequently, these antennas are often empirical designs using an element of trial and erroroften starting with an existing design modified according to one’s hunch.
No portion can be reproduced except by permission of the author. Retrieved 18 September Retrieved 4 July Very complicated Yagi designs were developed to give adequate gain over the broad television bands.
Modern Dictionary of Electronics 7 ed.
Let the driven element be designated 1 so that V 1 and I 1 are the voltage and current supplied by the transmitter.


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Kode: Caldwell-ARC400 Stok: Tersedia
Detail Produk Inverter Welding Machine
Mesin Las Caldwell ARC400 :
- Mosfet inverter circuit, high frequency arc starting.
- Easy to start the arc. It can resist disturbing stable arc and little spatter.
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Ditambahkan pada: 7 October 2019


An MPEG-2 video encoding mode in which half the horizontal resolution is sampled (352x480 for NTSC, 352x576 for PAL). See also D1
HD-DVD (HD stands for both high-density and high-definition) was under development before DVD came out. It finally emerged in 2003. Some high-definition versions of HD-DVD use the original DVD physical format but depend on new video encoding technology such as H.264 to fit high-definition video in the space that used to hold only standard-definition video. High-density formats use blue or violet lasers to read smaller pits, increasing data capacity to around 15 to 30 GB per layer. High-density formats use high-definition MPEG-2 video (for compatibility with ATSC and DVB HD broadcasts) and may also use advanced encoding formats, probably supporting 1080p24 video. HD discs will not play on existing players.
As of early 2003 there are five proposals for HD-DVD, with the possibility of others:
HD-DVD-9, aka HD-9
Advanced Optical Disc (AOD)
Blu-ray Disc (BD)
HDMI (High-Definition Multimedia Interface) is the first industry-supported, uncompressed, all-digital audio/video interface. HDMI provides an interface between any audio/video source, such as a set-top box, DVD player, and A/V receiver and an audio and/or video monitor, such as a digital television (DTV).
HDMI supports standard, enhanced, or high-definition video, plus multi-channel digital audio on a single cable. It transmits all ATSC HDTV standards and supports 8-channel digital audio, with bandwidth to spare to accommodate future enhancements and requirements.
High Definition TV is high-resolution digital television combined with Dolby Digital surround sound (AC-3). HDTV is the highest DTV resolution in the new set of standards. This combination creates a stunning image with stunning sound. HDTV requires new production and transmission equipment at the HDTV stations, as well as new television equipment for reception by the consumer. The higher resolution picture is the main selling point for HDTV. Imagine 720 or 1080 lines of resolution compared to the 525 lines people are used to in the United States (or the 625 lines in Europe) -- it's a huge difference!
Of the 18 DTV formats, six are HDTV formats, five of which are based on progressive scanning and one on interlaced scanning. Of the remaining formats, eight are SDTV (four wide-screen formats with 16:9 aspect ratios, and four conventional formats with 4:3 aspect ratios), and the remaining four are video graphics array (VGA) formats. Stations are free to choose which formats to broadcast.
The formats used in HDTV are:
720p - 1280x720 pixels progressive
1080i - 1920x1080 pixels interlaced
1080p - 1920x1080 pixels progressive
Home Theater Personal Computer, a computer designed to be used as a media center for digital home entertainment such as Movies, Music, Television, Games.
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Apple’s announcement of ARKit at the recent WWDC has had a huge impact on the Augmented Reality eco-system. Developers are finding that for the first time a robust and (with IOS11) widely available AR SDK “just works” for their apps. There’s no need to fiddle around with markers or initialization or depth cameras or proprietary creation tools. Unsurprisingly this has led to a boom in demos (follow @madewitharkit on twitter for the latest). However most developers don’t know how ARKit works, or why it works better than other SDKs. Looking “under the hood” of ARKit will help us understand the limits of ARKit today, what is still needed & why, and help predict when similar capabilities will be available on Android and Head Mount Displays (either VR or AR).


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Uponor Wireless Controls
Uponor's wireless control system, for multi-zone applications, means thermostats can be located almost anywhere within the room and easily relocated if necessary. The Radio Controller is a wiring centre and has an on board 230v/24v transformer for connection of 24v thermal actuators and Control Interface Unit.
12 wireless thermostats and 14 thermal actuators can be connected to each radio controller, while the Interface Unit can manage up to three controllers.
For further information, View Fact Sheet (PDF)