نتایج جستجو برای: second layer of obstacle
تعداد نتایج: 21204437 فیلتر نتایج به سال:
abstract the variables affecting the nature of reading comprehension can be classified into two general categories: reader’s variables, and text variables (alderson, 2000). despite the wave of research on vocabulary knowledge as reader’s variable, the role of this knowledge in c-test as a text-dependent test and its interaction with lexical cohesion of the test as a text feature has remained a...
having conducted the experiment and analysed the data, the researcher computed the groups mean scores and variances for the test relating to the research question. as the final atep, a t-test was conodonted for the hypothesis. as noted earlier, the significance level was determined at .05 and .01 respectively. the observed t-value was higher than the critical t-value at. 5 and .01 levels. conse...
Dear Editor, The optimal formation control design problem is studied for a class of second-order multi-agent systems (MASs) with obstacle avoidance. Based on the actor-critic framework, an optimized controller proposed by constructing novel performance index function. Furthermore, stability MAS proved Lyapunov simulation results are provided to depict effectiveness strategies.
چکیده به منظور بررسی اثر تنوع گیاهی و نوع منبع تغذیه ای بر تنوع و تراکم علفهای هرز و حشرات، کارایی مصرف نهاده ها ( نور، آب، عناصر غذایی) و عملکرد و خصوصیات کیفی چند گونه زراعی، آزمایشی به صورت کرتهای خردشده بر پایه طرح بلوکهای کامل تصادفی با سه تکرار در دو سال زراعی 1385-1384 و 1386-1385 در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه فردوسی مشهد به اجرا درآمد. تیمارهای مورد بررسی دو منبع کود دامی و...
This article mainly concerns double obstacle problems for second order divergence type elliptic equation divA(x, u, ▽u) = divf(x). We give local boundedness for very weak solutions of double obstacle problems.
Abstract In tri-lateral consumer credit agreements, Recognition legal liability of lender on breaches by supplier is based on two undeniable realities: 1- close relations of lender and supplier so that they seem to be a Joint venture. 2- Responding the requirements of distributive justice and supporting the consumers as the weaker party by imposing all losses incurred by consumers due to any b...
in this work, a more accurate prediction of liquid evaporation flux has been achieved. the statistical rate theory approach, which is recently introduced by ward and fang and exact estimation of vapor pressure in the layer adjacent to the liquid–vapor interface have been used for prediction of this flux. firstly, the existence of an equilibrium layer adjacent to the liquid-vapor interface is c...
Ionosphere layer variations are divided into regular and irregular. Regular changes can be considered as daily changes, changes depending on latitude and changes due to solar activity. Travelling Ionospheric Disturbances (TID) is one of the irregular changes of ionosphere which categorized in small, medium and large scales. Medium-scale Travelling Ionospheric Disturbance (MSTID) which are propa...
Abstract The boundary layer theory for nonhydrostatic mountain waves presented in Part II is extended to include upward-propagating gravity and trapped lee waves. To do so, the background wind with constant shear used smoothly curved becomes above a “boundary layer” height d , which much larger than inner scale δ . As II, pressure drag stays well predicted by wave when surface Richardson number...
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