نتایج جستجو برای: energy performance

تعداد نتایج: 1645905  

Climate change has become a challenge with adverse impacts on the Earth. Reducing the use of fossil fuel is a primary step to solve environmental problems. As the population continues to rise, to meet the growing demand for construction with a large share in energy Consumption, Efforts to make the built environment more energy efficient is crucial. The main objective of this research is to eval...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم ریاضی و مهندسی کامپیوتر 1392

heuristics are often used to provide solutions for flow shop scheduling problems.the performance of a heuristic is usually judged by comparing solutions and run times on test cases.this investigation proposes an analytical alternative ,called asymptotic convergence ,which tests the convergence of the heuristic to a lower bound as problem size grows. the test is a stronger variation of worst cas...

In this paper, we study the problem of power efficient tracking interval management for distributed target tracking wireless sensor networks (WSNs). We first analyze the performance of a distributed target tracking network with one moving object, using a quantitative mathematical analysis. We show that previously proposed algorithms are efficient only for constant average velocity objects howev...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - پژوهشکده علوم محیطی 1389

چکیده ندارد.

Abbas Alishah, Hamideh Mehdizadeh Saeid Hojjati Astani

Cement production is an energy-intensive process, so that the cement industry occupies a top position among other energy-consuming industries. Among the equipment used in cement industries, boilers are one of the energy-consuming equipment. Boilers are among the common heating equipment in industrial, commercial, and institutional facilities. In this paper, the performance of thermal oil bo...

Journal: :Revista Amazonia Investiga 2021

Recent years have seen sparked interest to business models based on sustainable development, which seek harmonious co-development of human resources, organizational culture, and production systems. This paper analyzes how HR management practices, a culture energy conservation, staff’s knowledge regarding efficiency affect the ability Russian industrial companies reach their targets in managemen...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1387

the study reflected in this thesis aims at finding out relationships between critical thinking (ct), and the reading sections of tofel and ielts tests. the study tries to find any relationships between the ct ability of students and their performance on reading tests of tofel and academic ielts. however, no research has ever been conducted to investigate the relationship between ct and the read...

 سید علی کشاورز, ,  سید مصطفی حسینی, , شهرام فرج زاده, , علی اکبر صبور یراقی, , محمد حضوری, , هاله صدرزاده یگانه, ,

Background: The aim of this study was to determine the effect of two different regimes, containing different carbohydrate to protein ratios on performance, serum glucose and insulin after exercise in soccer players in Tehran Iran. Methods: Nineteen male soccer players under training [age = 17/5 +/- 1.5 (SE) yr] were selected and completed two sequential trials separated by 1 week, in a paired c...

Journal: :international journal of smart electrical engineering 2015
sadegh hesari mohammad bagher naghibi sistani mostafa jalalian ebrahimi

in most industrial zones, electric energy is one of the most important energy sources. since electrical motors are the main energy consumers of industrial factories, consumption optimization in these motors can be considered as a main option related to energy saving. one very effective way to reduce the consumption of these equipment is to use a motor speed controllers or drives. since the loss...

ژورنال: انرژی ایران 2020

Boilers are one of the major energy consumers in the building. For this reason, increasing the efficiency of this device and improving its performance is an effective step in solving the problems in building energy and reducing waste energy. Due to the limited resources of fossil fuels and the increasing cost of energy in the world, manufacturers of these equipment are always working to improve...

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