نتایج جستجو برای: powered generators

تعداد نتایج: 44701  

Journal: :Chemical Society reviews 2015
Zhe Liu Jing Xu Di Chen Guozhen Shen

Flexible electronics have gained considerable research interest in the recent years because of their special features and potential applications in flexible displays, artificial skins, sensors, sustainable energy, etc. With unique geometry, outstanding electronic/optoelectronic properties, excellent mechanical flexibility and good transparency, inorganic nanowires (NWs) offer numerous insights ...

Journal: :Entropy 2016
Robert Alicki

In the previous papers, the idea of “hidden oscillations” has been applied to explain work generation in semiconductor photovoltaic cells and thermoelectric generators. The aim of this paper is firstly to extend this approach to fuel cells and, secondly, to create a unified quantum model for all types of such devices. They are treated as electron pumps powered by heat or chemical engines. The w...

2012
R. Mohanraj S. Dhanakumar G. Solaraj

Coimbatore is one of the fast growing industrial cities of Southern India with an urban population of 1.9 million. This study attempts to evaluate the trends of airborne fine particulates (PM 2.5) and polyaromatic hydrocarbons (PAH) on them. The PM 2.5 mass was collected in polytetra fluoroethylene filters using fine particulate sampler at monthly intervals during March 2009 to February 2010. P...

H. Akrami M. Lotfi Sh. Shojaeian,

Given the substitution process of generators using renewable energy sources instead of conventional generators in modern power systems, this paper proposes a Monte Carlo based method to determine an optimal level of this change. At first, LOLE index of the system was calculated without wind power to obtain the reference index. Then, the wind turbine units are replaced with the conventional gene...

Journal: :international journal of smart electrical engineering 2013
reza ilka yousef alinejad-beromi hossein asgharpour-alamdari hamid yaghobi

permanent magnet synchronous generators (pmsgs) are novel generators which can be used in high-performance wind farms. high efficiency and flexibility in producing electricity from variable rotation make them good candidate for wind power applications. furthermore, because these kinds of generators have no excitation winding, there is no copper loss on rotor; hence, they can operate at high pow...

Journal: :Applied sciences 2023

Cogeneration sources play a very important role in the power industry with dispersed renewable forced generation (e.g., photovoltaics and wind generators). They also fit into circular economy by increasing efficiency of fuel use, including biogas from agricultural or livestock waste. The aim our research was to develop an effective source electricity powered biogas. most features such are: oper...

احمدی, سعید, لطفی, معصومه, منصوری, نبی الله, منظم, محمدرضا,

Introduction: Using diesel generators is necessary for activities like welding in construction sites and it is often accompanied with noise pollution. The aim of this study was to evaluate noise pollution induced by diesel generators in construction activities in one of the districts of Tehran city.   Material and Method: In this descriptive study, 14 construction sites were selected for th...

Journal: :IEEE robotics and automation letters 2023

We present Orbit , a unified and modular framework for robot learning powered by xmlns:xlink="http://www.w3.org/1999/xlink">Nvidia Isaac Sim. It offers design to easily efficiently create robotic environments with photo-realistic scenes high-fidelity rigid deformable body simulation. Wi...

Journal: :bulletin of the iranian mathematical society 2014
leila sharifan

‎let $i$ be an ideal in a regular local ring $(r,n)$‎, ‎we will find‎ ‎bounds on the first and the last betti numbers of‎ ‎$(a,m)=(r/i,n/i)$‎. ‎if $a$ is an artinian ring of the embedding‎ ‎codimension $h$‎, ‎$i$ has the initial degree $t$ and $mu(m^t)=1$‎, ‎we call $a$ a {it $t-$extended stretched local ring}‎. ‎this class of‎ ‎local rings is a natural generalization of the class of stretched ...

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