Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
This study presents an advanced control scheme capable of significantly increasing power production from wave energy conversion (WEC) systems. This control scheme uses a reactive power approach built upon a Model Predictive Control (MPC) framework and is capable of optimizing power capture while also respecting machine constraints (e.g. velocity, maximum force, etc.). The controller can also take...
The design of portable power utilizing renewable energy sources has been instrumental in getting power to remote locations around the world. The Mobile Elemental Power Plant II is a small scale, off-grid, battery-based, portable system. It uses solar energy to provide 3000W of AC power from a battery bank, sustained by a 2160W array. The MEPP II is a self contained, towable system that can be quickly...
This study describes a detailed analysis and compensation of dead-time effect in direct matrix converter. To prevent a short circuit in the power supply, a switching delay time is needed to insert into pulse width modulation (PWM) signals. Due to the dead time, the waveform of output current emerges distortion and increases total harmonic distortion (THD). Dead time compensation is necessary to optimize...
A recent method for printed circuit board technology is studied, which greatly reduces the amount of metallic and chemical waste by using an additive technology, as opposed to traditional processes based on subtractive technology which require the use of large amounts of acids and toxic solvents. We examined the eSurfaceTM process for electroless plating, by fabricating samples from various materials...
Remanufacturing can effectively help reduce the environmental burden considering that it reduces both the natural resources needed and the waste produced. Currently, remanufacturing has been widely applied in the process instrumentation industry. Considering that the instrumentation makes up the brain of a process operation, how to remanufacture instrumentation plays a decisive role in the safety...
This paper reviews newly proposed product standards for Computer Servers in the Electronic Product Environmental Assessment Tool (EPEAT®) program. A brief overview of the program in place for other information technology products is presented and followed with a status and details on the standard writing for the new product group — Computer Servers. Two standards organizations are each writing their...
The emerging of cloud computing and Big Data has been presenting to the world both grand opportunities and challenges. However, the increasing trend in energy consumption in clouds due to the fast growing quantity of data to be transmitted and processed has made cloud computing, together with Big Data phenomenon, becoming the dominant contributor in energy consumption, and consequently in CO2 emission...
The IEEE Consumer Electronics Society Future Directions Committee has launched an effort with other IEEE societies to create an initiative for Safe Advanced Mobile Power. This talk will discuss the initiative and how it will lead to more sustainable power sources and mobile consumer electronic products, while meeting important requirements for safety, sustainability, manufacturability and cost. The...
Smart grid incorporates communication and control technologies to provide more efficient and reliable electricity to customers. The infrastructure of such power system will allow the customers to generate and store electricity, and use that in case of an outage or disconnection from the utility. Therefore, the outage of power from the utility side does not necessarily result in loss of electricity...
The Objectives of this study are to (i) determine the profit obtained and the occupational hazard faced by dismantlers per day in the two major e-waste recycling sectors (formal and informal) in developing countries like India, China, and Africa, (ii) compare the profits obtained in these two sectors by taking the dismantling processes of two computer electronics systems: CRT monitor and CPU as a...
Simulation tools are designed to represent subsets of the real world. To be effective, these tools must be experimentally validated with real world measurements. Sandia National Laboratories (SNL) and the National Renewable Energy Laboratory (NREL) have been tasked by the U.S. Department of Energy (USDOE) with the creation of a time-domain equation-of-motion simulator for the evaluation of wave energy...
This project explored wind farm layout optimization using turbine acoustic and wake models. For two existing wind farms, the position of each wind turbine was optimized to maximize power output while constraining noise. Semi-empirical calculations were used for both the acoustic and wake models to predict how the turbine noise and wake disturbances propagated downstream. Turbine layout was optimized...
The number of photovoltaic (PV) installations worldwide has recently seen tremendous growth owing to the rapid decline in the consumer cost of solar. These devices benefit from the maturity of the silicon industry as a whole, with world record devices reaching approximately 26% efficiency [1], close to the theoretical maximum for that type of device. Alternative device technologies, including concentrated...
This paper introduces the TripleRM Sustainability Model as a tool for long term strategic Risk, Resilience and Resource Management (TripleRM) of Sustainable Cities. Through predictive scenario analysis, the model aims to help minimize social, economic and environmental damage due to infrastructure system failure, and assist cities around the world become more resilient to challenges such as flooding...
There are thousands of isolated, diesel-powered microgrids that deliver energy to remote communities around the world at very high energy costs. The Remote Communities Renewable Energy program aims to help these communities reduce their fuel consumption and lower their energy costs through the use of high penetration renewable energy. As part of this program, the REopt modeling platform for energy...
Pressure retarded osmosis is a technique for recovering salinity gradient energy, and new technology proposed as a renewable energy resource. Two water bodies with differing salt concentrations are separated by a membrane which is permeable to water but not to salt, and water is driven toward the section of high salinity, where its hydraulic pressure can be recovered as hydroelectric power. This paper...
This paper proposes a check and alert service based on IoT as personal guard. This personal service can prevent people in trouble because of the omitted things or the skipped tasks unconsciously. Further, it can avoid the probable risks caused by the missed tasks or the omitted things. In addition, we present a security model for personal services based on Bluetooth 4.2 supporting IPSP (Internet Protocol...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.