SmartGrids: European Technology Platform
pochekailov - Программы для работы с литературой
Среди прочего, все ученые работают 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: Другая популярная система - Zotero.
Les quatre éléments
Les solutions de gestion de l'énergie et d'éclairage devraient conduire l'industrie, alors que les systèmes de chauffage, ventilation et climatisation continueront de jouer un rôle important Le marché européen des systèmes immotiques récupère de la crise à laquelle il a fait face en 2009 à cause de la récession. Bien que ce rétablissement soit dynamique, le marché doit encore se stabiliser et développer des opportunités de croissance dans les régions émergentes et les segments utilisateurs. En attendant, les exigences en matière d'efficacité énergétique et le soutien législatif des directives de l'UE seront de grands conducteurs du marché. Selon une nouvelle étude de Frost & Sullivan intitulée « Marché européen des systèmes immotiques » (buildingtechnologies.frost.com), ce marché a généré 1 769,5 millions de dollars en 2010 et devrait atteindre 2 123,6 millions de dollars en 2017.
Global Climate Change: Research Explorer
The earth’s climate has warmed and cooled for millions of years, since long before we appeared on the scene. There’s no doubt that the climate is growing warmer currently; indications of that change are all around us. Though climate change isn’t new, the study of how human activity affects the earth’s climate is. The exploration of climate change encompasses many fields, including physics, chemistry, biology, geology, meteorology, oceanography, and even sociology. At this Web site, you can explore scientific data relating to the atmosphere, the oceans, the areas covered by ice and snow, and the living organisms in all these domains.
PowerMeter - Save Energy. Save Money. Make a Difference.
We launched Google PowerMeter as a free energy monitoring tool to raise awareness about the importance of giving people access to their energy information. PowerMeter included key features like visualizations of your energy usage, the ability share information with others, and personalized recommendations to save energy. We partnered with device manufacturers and utilities around the world. Many of our partners now have new options available for accessing energy information. We are pleased that PowerMeter helped demonstrate the importance of access to energy information, and created a model for others. We retired the service on September 16, 2011. We continue to see encouraging results about the importance of access to energy data. Momentum is building toward making energy information more readily accessible, and it’s exciting to see others drive innovation and pursue opportunities in this important new market.
Test of building smart sensors yields big energy savings
(PhysOrg.com) -- 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. 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.
The Large Hadron Collider
The Large Hadron Collider (LHC) is the world’s largest and most powerful particle accelerator. It first started up on 10 September 2008, and remains the latest addition to CERN’s accelerator complex. The LHC consists of a 27-kilometre ring of superconducting magnets with a number of accelerating structures to boost the energy of the particles along the way. Inside the accelerator, two high-energy particle beams travel at close to the speed of light before they are made to collide. Thousands of magnets of different varieties and sizes are used to direct the beams around the accelerator. All the controls for the accelerator, its services and technical infrastructure are housed under one roof at the CERN Control Centre. How many kilometres of cables are there on the LHC? Download the LHC guide [PDF] CERN takes safety very seriously. Read about the safety of the LHC
Texas Electricity Ratings: The Blog
This morning Direct Energy has announced their purchase of Texas retail electricity provider Bounce Energy. Bounce Energy, who has consistently been at the top of the Texas Electricity Ratings rankings (currently #1), has easily been the most innovative electricity provider in the country in terms of their online technology/capabilities and their success in reaching out to potential and existing customers through social media outlets. Additionally, just recently, Bounce made groundbreaking contributions to the electricity space with the launch of their new MyAccount functionality, as well as their Build Your Own Plan functionality. The Build Your Own Plan is the only one of it’s kind in the electricity space, and allows customers to select their own plan term length, the amount of renewable energy in the plan, whether they want automated and paperless billing, and more. All in all, it’s a very interesting day for Texas electricity customers.
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. 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. Reconstruction filters: Also called (sinx)/x or zero-order-hold correctors, these filters are placed after a digital-to-analog converter (DAC) to remove multiple images created by sampling, though not to remove the DAC clock. Filters and Their Characteristics
