نتایج جستجو برای: performance base design

تعداد نتایج: 2081271  

Journal: :روش های عددی در مهندسی (استقلال) 0
حمزه شکیب h. shakib

in this study a series of ambient vibration tests on the triple ferrocement elevated water tanks with 150 cubic meters volume, is carried out. in order to verify the dynamic characteristics of full, half-full and one full tanks (mass eccentric system), the different arrangements of sensors are used. the effects of base rotation are also considered in the tests. natural frequencies and mode shap...

Journal: :iranian journal of science and technology transactions of mechanical engineering 2015
m. mansoury s. jafarmadar s. m. lashkarpour m. talei

in the present work, the simultaneous effects of fuel injection rate and injection of air jet into the combustion chamber on exhaust emissions, combustion process and performance parameters in a direct injection diesel engine were investigated. in order to create an air jet, a design was presented in which a secondary chamber (air cell) was created inside the cylinder and was joined to the main...

Journal: :علوم دامی ایران 0
سلیمه ترکاشون دانشجوی کارشناسی ارشد بوعلی سینا همدان محمدمهدی طباطبایی دانشیار دانشگاه بوعلی سینا همدان حسن علی عربی استادیار دانشگاه بوعلی سینا همدان علی اصغر بهاری استادیار، دانشکده پیرادامپزشکی، دانشگاه بوعلی سینا همدان-ایران داریوش علیپور استادیار دانشگاه بوعلی سینا همدان

the effect of different levels of zinc and copper organic supplements on performance, plasma copper plus zinc status, serum alkaline phosphatase (alp), ceruloplasmin (cp) activity as well as vitamin ¬a concentration was studied in 25 mehraban male lambs each of 5-6 months of age and 30/64±3/47kg of live weight. the following five dietary treatments were used: 1) control (base diet with no addit...

Journal: :Commun. ACM 1984
Jon Louis Bentley

The September 1983 column described the " everyday " impact that algorithm design can have on programmers: an algorithmic view of a problem gives insights that may make a program simpler to understand and to write. In this column we'll study a contribution of the field that is less frequent but more impressive: sophisticated algorithmic methods sometimes lead to dramatic performance improvement...

      In livestock nutrition management to increase productivity, finding intensive sources of food is a great achievement. .The sub-sectors of the agricultural sector in the feeding of ruminant animals make it possible to use them for the production of valuable products such as meat and milk. The purpose of this study was to investigate the effects of using citrus and sugar beet pulp in diet o...

2011
Xinjun Feng Xudong Zha Peiwen Hao

Marshall Test design methods are used to design TLA modified asphalt mixture and base asphalt mixture respectively, and their pavement performance is tested. The results showed that there is a transforming coefficient of 1.15 between OAC of 40% TLA modified asphalt mixture and that of base asphalt mixture, and ultimate gradation of the TLA modified asphalt mixture is finer than previous gradati...

2011
JUN OUYANG DAVID LOWTHER J. Ouyang D. Lowther

In order to explore creativity in design, a computational model based on CaseBased Reasoning (CBR) (an approach to employing old experiences to solve new problems) and other soft computing techniques from machine learning, is proposed in this paper. The new model is able to address the four challenging issues: generation of a design prototype from incomplete requirements, judgment and improveme...

Journal: :international journal of advanced structural engineering 2009
mayank k. gupta swapnil b. kharmale siddhartha ghosh

over the past decade of extensive research works, the thin un-stiffened steel plate shear wall(spsw) has now emerged as a promising lateral load resisting system. considering thedemand of performance-based seismic design (pbsd) philosophy in current and futureseismic design codes, a ductility-based design was recently proposed for spsw systems withpin-connected boundary beams. however, the effe...

2013
JEFFERY L. GRAY RICHARD J. SCHWARTZ YOUN JUNG LEE Jeffery L. Gray Richard. J. Schwartz Jung Lee

Many thin film heterojunction solar cells contain an interface between the emitter and base which is a very high recombination region and which effectively prevents the passage of minority carriers. However, by utilizing proper design techniques which will be discussed here, the problem can be minimized; efficient thin film heterojunction solar cells can be fabricated, even though they contain ...

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