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Windows Metro Style Apps Developer Downloads. CS 3410. Ch0204.pdf (application/pdf Object) Smart Grid - Ideas. SmartGrid. Active Filters for Video. Abstract: Originally, video filters were passive LC circuits surrounded by amplifiers. Smaller, more efficient designs can currently be achieved by combining the amplifier with an RC filter. Sensitivity analysis and predistortion methods developed in the 1960s have, moreover, overcome the poor performance that gave early video filters a bad reputation.

High-performance op amps and specialized software for the PC enable the design of wide-bandwidth active filters, but those advantages do not address the requirements of any specific application. For video filters, the particular application and signal format add nuance to each circuit design. The two major video applications follow. Antialiasing filters: These devices are placed before an analog-to-digital converter (ADC) to attenuate signals above the Nyquist frequency, which is one half the sample rate of the ADC. This article compares different filters to determine the optimum design for a given application or format. Rauch.pdf (application/pdf Object) Test of building smart sensors yields big energy savings. ( -- To reduce energy consumption in commercial buildings, computer scientists at the University of California, San Diego have come up with a way to use real-time occupancy sensors and computer algorithms to create smart heating, ventilation and air-conditioning (HVAC) systems.

Test of building smart sensors yields big energy savings

Based on early test results, the software- and sensor-based solution produced electrical energy savings of between 9.54 and 15.73 percent on their test deployment on one floor of a 5-floor campus building. “It’s clear that sensors and computing are key to reducing the demand for electricity in office buildings,” said Yuvraj Agarwal, a research scientist in UC San Diego’s Computer Science and Engineering (CSE) department. “Based on the test deployment, we estimate 40-50 percent in energy savings if we deployed our system across the entire CSE building. This is done because there is currently no easy and cost-effective way of knowing when individual occupants arrive in or leave their offices. Department of Energy - Smart Grid.

“Smart grid” generally refers to a class of technology people are using to bring utility electricity delivery systems into the 21st century, using computer-based remote control and automation. These systems are made possible by two-way communication technology and computer processing that has been used for decades in other industries. They are beginning to be used on electricity networks, from the power plants and wind farms all the way to the consumers of electricity in homes and businesses. They offer many benefits to utilities and consumers -- mostly seen in big improvements in energy efficiency on the electricity grid and in the energy users’ homes and offices. For a century, utility companies have had to send workers out to gather much of the data needed to provide electricity.

The workers read meters, look for broken equipment and measure voltage, for example. The “grid” amounts to the networks that carry electricity from the plants where it is generated to consumers. Optimization and Control for Smart Grids.

Control and Lego

Pochekailov - Программы для работы с литературой. Среди прочего, все ученые работают с литературой.

pochekailov - Программы для работы с литературой

Они ее читают (sic!) , а когда пишут статьи, обзоры или книги - то ссылаются на источники. В науке не принято пользоваться агенством ОБС, здесь все четко: если что-то утверждаешь, будь добр, приведи основания, почему ты это пишешь. Либо дай ссылку на того, кто обнаружил факт до тебя, либо опиши, что ты сделал, чтобы убедится в верности твоего утверждения. На этом построена вся наука: факты не берутся с потолка, а подтверждаются многократно повторенным опытом. В типичной статье бывает как правило от 10 до 50 ссылок, в обзоре какой-либо темы - до 200-300. Я для этого пользуюсь старой проеренной системой, на которой основан BibTeX (это пакет для библиографии в LaTeX). Конечно, делать это вручную было бы сущим адом. Во-первых, тот же BibTeX. Конечно, базу данных вручную тоже делать сложновато.

Вот как этот JabRef выглядит с открытой в нем базой данных: A Quick Sine Wave Generator. Smart Grid News - Grid Modernization and the Smart Grid. Digital Signal Processing - Download free content from Delft University of Technology on iTunes. EE 120 - Spring 2007: Signals and Systems - Download free content from UC Berkeley on iTunes. The Discrete Fourier Transform (DFT) DFT of four period sin(x) The magnitude graph of sin(x), above, exhibits the embarrassment of DFT leakage.

The Discrete Fourier Transform (DFT)

Instead of having a signal magnitude 1.0 value at an x-axis location this case corresponds to the number of sin(x) periods, there is a magnitude that is slightly less than 1.0 and several sub-magnitudes. For sin(x) this is not a big problem, since it is easy to distinguish the major component of the signal. However, if it is a complex signal, which smaller components, the smaller components may be obscured by the DFT leakage.

One solution to the humiliating problem of DFT leakage is windowing. Triangular window Hanning window Hamming window These functions smoothly "tail off" the signal at both ends, reducing DFT leakage.