نتایج جستجو برای: conversion efficiency

تعداد نتایج: 486520  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

in this thesis, a better reaction conditions for the synthesis of spirobarbiturates catalyzed by task-specific ionic liquid (2-hydroxy-n-(2-hydroxyethyl)-n,n-dimethylethanaminium formate), calcium hypochlorite ca(ocl)2 or n-bromosuccinimide (nbs) in the presence of water at room temperature by ultrasonic technique is provided. the design and synthesis of spirocycles is a challenging task becaus...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده برق و کامپیوتر 1392

abstract nowadaysphotovoltaic solar cells (pvs) areacknowledged the fastest growing energy technology in the word, however, they only account for only fraction of current global renewable energy capacity. it isrecognized that this incomplete market penetration has been largely a result of the technology’sexcessive cost. so researchers are trying to find innovative, economic way with theaim of ...

Journal: :iranian journal of applied animal science 2015
h.m.a. gaafar e.m. abdel-raouf m.m. bendary g.h.a. ghanem k.f.a. el-riedy

twenty eight lactating buffaloes were used in a completely randomized design with 2×2 factorial arrangement of four experimental diets including low protein–low energy (lp-le), low protein–high energy (lp-he), high protein–low energy (hp-le) and high protein–high energy (hp-he). results showed that the hp-he diet recorded the highest digestibility coefficients of cp, ee, nfe, nutritive values, ...

1997
David Epstein

Although the uncovered set has occupied a prominent role in social choice theory, its exact shape has never been determined in a general setting. This paper calculates the uncovered set when actors have pork barrel, or purely distributive, preferences, and shows that in this setting nearly the entire Pareto set is uncovered. The result casts doubt on the usefulness of the uncovered set as a gen...

Journal: :تحقیقات موتور 0
علی قاسمی a. ghasemi علی اصغر مظفری a.a. mozafari

the monolithic catalytic converter is still the main pollution control device for modern vehicles in order to reach the ever-increasing legislative demands for low emission standards. the catalytic converters require a large expansion from the exhaust pipe to the front face of the monolith. unfortunately, packaging constraints often do not permit the use of long diffusers. hence, flow separatio...

Journal: :Robotics and Autonomous Systems 2004
Eduardo Todt Carme Torras

This work presents a novel technique for embedding color constancy into a saliency-based system for detecting potential landmarks in outdoor environments. Sincemultiscale color opponencies are among the ingredients determining saliency, the ideais to make such opponencies directly invariant to illumination variations, rather thanenforcing the invariance of colors themselves....

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده علوم 1388

این تحقیق با وارد کردن لانتاتیدهایی چون هلمیوم (3+ho) ایتربیوم (3+yb) نئودیمیوم (3+nd) به صورت تکی یا چندتایی، به یک میزبان شیشه فسفاتی، نمونه های مختلف شیشه – سرامیک تحت عملیات حرارتی ساخته شده است. بعد از طیف نگاری های xrd و طیفهای عبور و جذب و فلورسانس گسیلی، ورود لانتانیدها به فاز نانوکریستالی cacl2 بررسی شده است. به واسطه خصوصیات ذاتی لانتانیدها در توانایی جذب و گسیل نور و شکافت تراز های ...

سید‌محمد‌تقی محمدی, , صادق نوروزی‌, , عطاملک قربانزاده, , محمدعلی خداقلی, , ناصر سیدمتین, ,

  Methane conversion to higher hydrocarbons by pulsed glow discharge at the atmospheric pressure was investigated. The energy efficiency up to 10 % was obtained which is higher than any value ever published for nonequilibrium plasma conversion of pure methame. This method has a potential for development and it is expected that the energy efficiency will be improved further if the plasma paramet...

M. Aktaruzzaman M.A. Baset M.N. Uddin, N. Zahan Shoshe N.K.D. Nath S.A. Belal,

Theexperiment was conducted to investigate the growth performance and feed conversion efficiency of crossbred heifer at different age level in Government Dairy Farm in Bogra, Bangladesh. Twelve female crossbred heifers were equally distributed (n=3) into four groups [Group A: (7±2 months), B: (12±2 months), C: (15±2 months) and D: (20±2 months)] according to age and fed concentrate mix, rice st...

2010
Martin Binder Tom Broekel

In Amartya Sen’s capability approach, policy makers can focus on different levels to influence the well-being of a society. We argue that improving capability to function as well as absolute levels of functioning achievement should be complemented by attention given to improving individuals’ “conversion efficiency”, i.e. the efficiency with which individual resources are converted into well-bei...

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