نتایج جستجو برای: yield functions

تعداد نتایج: 677805  

2015
Steven E. Shreve Gan-Lin Xu

An agent can invest in a high—yield bond and a low—yield bond, holding either long or short positions in either asset. Any movement of money between these two assets incurs a transaction cost proportional to the size of the transaction. The low—yield bond is liquid in the sense that wealth invested in this bond can be consumed directly without a transaction cost; wealth invested in the high—yie...

Journal: :IOP Conference Series: Materials Science and Engineering 2021

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1390

the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...

Journal: :IOP Conference Series: Materials Science and Engineering 2022

Abstract In sheet metal forming simulations, the yield functions are usually calibrated based on experimental data, and validated by comparing modelled measured r-values (in more advanced models) stresses along various in-plane directions. The fitted function should ideally reproduce (or interpolate) all values used for fitting. However, this requirement does not guarantee accurate results in a...

Journal: :تحقیقات آب و خاک ایران 0
نیاز علی ابراهیمی پاک دانشیار پژوهشی بخش آبیاری و فیزیک خاک مؤسسة تحقیقات خاک و آب آرش تافته دانشجوی دکتری دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران حسین بابازاده استادیار دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران

the purpose of this study is evaluation and improvement of production functions to estimate alfalfa yields under different deficit irrigations conditions and determination of “production of yield - water use” in qazvin plain. this investigation was applied by factorial experiment in a randomized complete block design with four water treatments including e4, e3, e2, and e1, respectively, equal t...

Journal: :بوم شناسی کشاورزی 0
سجاد میجانی علی قنبری مهدی نصیری محلاتی

in order to examine the multi-species weed competition in corn field an experiment as an interval mapping was carried out at the agricultural research field of ferdowsi university of mashhad during growing season 2009-2010. at 3-4 leafy stages of corn, 20 non-destructive quadrates determine and the density of weeds was counted separately. at the same time, 20 destructive quadrates determine and...

Journal: :چغندرقند 0
حمید محمدی استادیار دانشگاه آزاد اسلامی واحد جهرم

in order to investigate the impact of government policies on supply, cropping area and yield of sugar beet during 1981-2003, nominal rate of protection (nrp) was applied as a variable to persuade government’s policies in this study. results showed that despite of its negative impacts on cropping area, the nrp has positive effects on supply and yield of sugar beet iniran. moreover, real price of...

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