نتایج جستجو برای: generation

تعداد نتایج: 355391  

The current study was carried out to evaluate the quantity and quality of rural domestic waste generation and to identify the factors affecting it in rural areas of Khodabandeh county in Zanjan Province, Iran. Waste samplings consisted of 318 rural households in 11 villages. In order to evaluate the quality and quantity of the rural domestic waste, waste production was classified into 12 groups...

Events with low probability and high impact, which annually cause high damages, seriously threaten the health of the distribution networks. Hence, more attention to the issue of enhancing network resilience and continuity of power supply, feels more than ever, all over the world. In modern distribution networks, because of the increasing presence of distributed generation resources, an alternat...

Journal: :فلسفه 0
احمد علی اکبر مسگری استادیار دانشگاه شهید بهشتی احمد عسکری دانشجوی دکترای دانشگاه شهید بهشتی

in the tradition of philosophy prime matter has been often accepted as a genuine aristotelian concept. however, this has been doubted by some modern scholars. the dispute is mainly whether aristotle committed to prime matter or not. on the other hand, some scholars still endorse prime matter as a part of aristotle’s philosophy. prime matter is tied up to the problem of generation. generation, i...

Journal: :آب و خاک 0
سیّدحمیدرضا صادقی ملیحه سادات ظریف معظم سید خلّاق میرنیا

abstract the proper management of a watershed depends on recognition of effective elements and investigation of their behavior in different conditions. till date, many researches have studied the role of topographical general characteristics on hydrologic behaviors. whereas, the changeability of hydrologic properties under different conditions, especially in iranian watershed has been rarely ta...

Journal: :معماری و شهرسازی آرمان شهر 0
mostafa behzadfar professor of urban design, school of architecture and environmental design, iran university of science & technology, tehran, iran. farzad abdi m.a. of urban design, school of architecture and environmental design, iran university of science & technology, tehran, iran. maryam mohammadi ph.d candidate of urban development, school of architecture and environmental design, iran university of science & technology, tehran, iran.

while different elements including social, economic and cultural elements play a vital role in the emergence of behavioral patterns in humans, one cannot ignore the influence of the physical and spatial characteristics of built environment as a back ground for occurrence of anomic behavior on committing crimes. therefore, a series of approaches and theories such as “crime prevention through env...

Journal: :international journal of robotics 0
mohammad mahdavian center of advanced systems and technologies(cast), faculty of mechanical engineering, university of tehran, tehran, iran aghil yousefi-koma school of mechanical eng faculty of engineering university of tehran masoud shariat-panahi faculty of mechanical engineering, university of tehran, tehran, iran majid khadiv faculty of mechanical engineering, k. n. toosi university of technology, tehran, iran amirmasoud ghasemi toudeshki faculty of mechatronic systems engineering, simon fraser university, vancouver, canada

in this paper, trajectory generation for the 4 dof arm of surena iii humanoid robot with the purpose of optimizing energy and avoiding a moving obstacle is presented. for this purpose, first, kinematic equations for a seven dof manipulator are derived. then, using the lagrange method, an explicit dynamics model for the arm is developed. in the next step, in order to generate the desired traject...

Journal: :international journal of robotics 0
abdolreza gharahsofloo faculty of mechanical engineering, sahid rajaee teacher training university, tehran, iran, p.o. box , 16785-136 ali rahmani hanzaki faculty of mechanical engineering, sahid rajaee teacher training university, tehran, iran, p.o. box , 16785-136

dimensional synthesis of a parallel robot may be the initial stage of its design process, which is usually carried out based on a required workspace. since optimization of the links lengths of the robot for the workspace is usually done, the workspace computation process must be run numerous times. hence, importance of the efficiency of the algorithm and the cpu time of the workspace computatio...

Journal: :iranian journal of science and technology transactions of electrical engineering 2015
s. babaeinejadsarookolaee a. akbari foroud

in order to improve the reliability of the power system, sufficient amount of new capacity should be installed in the network. usually generation units’ payoff in an energy market is not adequate to cover their expenses. therefore, energy only market cannot induce investors to invest in generation field. due to energy only market inefficiency, a supplementary algorithm is suggested to cover the...

Journal: :transport phenomena in nano and micro scales 2013
e. fattahi m. farhadi k. sedighi

this work presents a numerical analysis of entropy generation in γ-shaped enclosure that was submitted to the natural convection process using a simple thermal lattice boltzmann method (tlbm) with the boussinesq approximation.  a 2d thermal lattice boltzmann method with 9 velocities, d2q9, is used to solve the thermal flow problem. the simulations are performed at a constant prandtl number (pr ...

Journal: :international journal of advanced biological and biomedical research 2013
mostafa eidi kohnaki ghaffar kiani ghorbanali nematzade

in order to evaluate the relationship between morphological characters in rice lines two populations at f3 generation were grown in research field of agricultural sciences and natural resource university, sari, iran, during 2012. statistical analysis on important agronomic traits showed that maximum standard deviation belonged to total grain number followed by filled grains per panicle and grai...

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