نتایج جستجو برای: production gap

تعداد نتایج: 738498  

ژورنال: علوم زراعی ایران 2019
Dastan, Salman, Rezvantalab, Nasibeh, Soltani, Afshin,

One of the main problems for rice production is the large difference between farmers' actual yields and attainable yields. Therefore, it is important to identify the limiting factors on yield and yield gap. In this research, all performed management practices from seedbed preparation to harvesting in 228 paddy fields of local rice cultivars in the east, central and west parts of Mazandaran prov...

Journal: :iranian economic review 2008
ali taiebnia shapour mohammadi

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی 1392

در این تحقیق مدل ساده ای از یک پل سه دهانه مورد بررسی قرار گرفته است که تحت اثر مولفه¬های افقی و عمودی حرکت عمود بر گسل با بزرگاها و اختلاف فاز¬های مختلف بررسی می¬شود. این مدل شامل سه عرشه ی صلب و چهار پایه¬ی دارای صلبیت محوری بدون جرم بوده که هر کدام از پایه¬ها با یک فنر دورانی غیرخطی و یک میراگر دورانی خطی به زمین متصل هستند. جهت مدل کردن نیروی ضربه بین عرشه¬ها از مدل ویسکوالاستیک خطی استفاده...

Journal: :Biology of reproduction 1988
W Y Chan I Berezin E E Daniel

The development of oxytocin (OT) sensitivity in the parturient uterus is associated with increases in myometrial OT receptor concentration, gap junction formation, and prostaglandin (PG) production. To investigate whether PGs mediate these responses, we measured OT responsiveness, OT receptor concentrations, and gap junction formations in uteri of Day 19, 20, 21, 22, 23 pregnant and Day 2 postp...

2009
Moritz Gomm Holger Brocks

This deliverable describes the development of the gap analysis schema and correspond­ ing tool support. First a gap analysis framework was developed, thus eliciting and struc­ turing the relevant dimensions and corresponding attributes for future e-infrastructures into a formal schema. Then a stepwise procedure was developed for conducting the gap analyses, providing methods and metrics to iden...

2006
Valentina Bianchi Cristiano Chesi VALENTINA BIANCHI

In this paper we reconsider the connectedness effect discussed by Kayne (1983), and illustrated in the examples (1)-(3). Kayne observed that in VO languages, left branch constituents are strong islands for extraction; however, an illegitimate gap inside a left branch island can be rescued by another gap embedded in a lower right branch constituent. The examples in (1)-(2) illustrate preverbal s...

Journal: :Finance and Stochastics 2013
Mathias Beiglböck Pierre Henry-Labordère Friedrich Penkner

In this paper we investigate model-independent bounds for exotic options written on a risky asset using infinite-dimensional linear programming methods. Based on arguments from the theory of MongeKantorovich mass-transport we establish a dual version of the problem that has a natural financial interpretation in terms of semi-static hedging. In particular we prove that there is no duality gap.

2002
STEPHEN SIMONS Jonathan M. Borwein

We explore the connection between the concepts “excess” and “duality gap” from epigraphical analysis and optimization, and the functional analytic concepts of weak* and weak compactness. We also discuss briefly the connection with R. C. James’s “sup theorem”.

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