نتایج جستجو برای: coefficient of efficiency e

تعداد نتایج: 21679767  

Journal: :Decision Support Systems 2008
Raymond Y. K. Lau Yuefeng Li Dawei Song Ron Chi-Wai Kwok

With the increasing popularity of e-marketplaces for B2C and B2B e-commerce, intelligent software agents are promising in improving the effectiveness of these markets by autonomously searching for products and negotiating contracts on behalf of the human decision makers. A large number of research has been conducted to develop negotiation protocols and mechanisms for automated negotiations. How...

Journal: :IJEBM 2013
Jen-Ming Chen Chun-Yun Ku

This study deals with the impact of channel strategy and channel format selection on the manufacturer’s, the retailer’s, the e-tailer’s, and the system-wide profits. We consider the problem of one manufacturer selling one product in the market through two competing channels: a physical channel (retailer) and an internet channel (e-tailer). We assume the manufacturer uses two commonly applied co...

Journal: :چغندرقند 0
سمر خیامیم کارشناس ارشد زراعت – دانشگاه تهران داریوش مظاهری عضو هیئت علمی دانشگاه تهران محمد بنایان اول عضو هیئت علمی دانشگاه فردوسی مشهد جواد گوهری عضو هیئت علمی مؤسسه تحقیقات اصلاح و تهیه بذر چغندرقند محمدرضا جهانسوز عضو هیئت علمی دانشگاه تهران

extinction coefficient (k) is an important index that shows the rate of light decrease in canopy. net biomass accumulation is linearly related to cummulative light interception. the slope of this relationship is termed radiation use efficiency. a split plot experiment within randomized complete block design with three replications was conducted in april 2001 in sugar beet research station in ka...

Journal: :مدیریت دولتی 0
داریوش توسلی دانشجوی دکتری مدیریت آموزشی، دانشکدۀ ادبیات و علوم انسانی، دانشگاه ارومیه، ارومیه، ایران حسن قلاوندی دانشیار گروه علوم تربیتی، دانشکدۀ ادبیات و علوم انسانی، دانشگاه ارومیه، ارومیه، ایران میر محمد سید عباس زاده استاد گروه علوم تربیتی، دانشکدۀ ادبیات و علوم انسانی، دانشگاه ارومیه، ارومیه، ایران عبدالزهرا نعامی دانشیار گروه علوم تربیتی و روان‎شناسی، دانشکدۀ علوم تربیتی، دانشگاه شهید چمران، اهواز، ایران

having the capacity of adaptability is one of the affecting factors of modern organizations success in response to changing customer demands and environment changes. the aim of this research is to investigate the relationship between self-efficiency and organizational capacity of adaptability. statistical population of this research, conducted in 2015 in ahwaz, includes all the faculty members ...

Journal: :international journal of management and business research 2011
zeinab jowkar reza samizadeh

this paper provides a fuzzy based decision support system (dss) for risk analysis in e-tourism ( electronic tourism ) investment. in general term, e-tourism is the use of information and communication technology (ict) in tourism which may allow operating tourism in least variable cost, least time and increased work efficiency. it is worth noting that there are many factors that affect the deve...

ژورنال: سلامت و محیط زیست 2011
جنیدی جعفری, احمد, ختایی, علیرضا, رضایی, عباس, کاشی, گیتی,

Background and objective: The conventional chemical and physical methods for water disinfection include the application of ultraviolet (UV), chlorination, and ozonation. Water disinfection by electrochemical methods has been increasingly carried out recently. The goal of this applied - analytical research is to investigate the removal of E. coli bacteria, as the index of water microbial contami...

2012
Li-Chun Cheng Wei-Lung Chou Cheng-Ping Chang Yi-Ming Kuo Chih-Ta Wang

This study investigated the influence of experimental factors on the electrochemical cyanide destruction efficiency in a flow-through reactor using response surface methodology. Central composite experimental design was used to obtain the four main operating factors, such as current density, initial cyanide concentration, chloride concentration, and electrolysis time, on the response surface of...

Journal: :journal of chemical and petroleum engineering 2014
aliakbar heydari fazel dolati mojtaba ahmadi yasser vasseghian

in this study, activated sludge process for wastewater treatment in a refinery was investigated. for such purpose, a laboratory scale rig was built. the effect of several parameters such as temperature, residence time, effect of leca (filling-in percentage of the reactor by leca) and uv radiation on cod removal efficiency were experimentally examined. maximum cod removal efficiency was obtained...

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