نتایج جستجو برای: constrained exible ow lines

تعداد نتایج: 309407  

1996
Bao-An Li

Within the framework of a relativistic transport model (ART 1.0) for heavy-ion collisions at AGS energies, we study the transverse ow of pions with respect to that of nucleons using two complementary approaches. It is found that in central collisions pions develop a weak ow as a result of the ow of baryon resonances from which they are produced. On the other hand, they have a weak anti ow in pe...

Journal: :The journal of cetacean research and management 2023

Recent photo-identification and genetic studies have identified at least five discrete breeding populations in Australia Oceania: western (D), eastern (E (i)), New Caledonia (ii)), Tonga (iii)), French Polynesia the Cook Islands (F). Also evident are low levels of intermingling among consistent with degree differentiation. Photo-identification has confirmed linkages between Area V feeding areas...

1997
Carlos F. Bispo Sridhar Tayur

We address several aspects related to managing re-entrant lines in a uni ed manner { capacity allocation, inventory management and production control. Our approach to study these systems is through simulation based optimization. Simulation o ers the exibility to model the complexities adequately while the gradient computation (via In nitesimal Perturbation Analysis) helps identify good solution...

Journal: :Journal of Marine Science and Engineering 2023

The exploitation of marine renewable energy sources, such as offshore wind (OW), wave (WA), and tidal stream (TS) energy, is essential to reducing carbon emissions in China. Here, we demonstrate that a well-designed deployment OW-WA-TS joint would be better than OW alone improving performance terms the total amount temporal stability integrated power output northern Bohai Sea/Strait, Subei Shoa...

ژورنال: :پژوهش های محیط زیست 0
سید سعیدرضا احمدیزاده دانشیار گروه مهندسی محیطزیست، دانشکده منابع طبیعی و محیطزیست، دانشگاه بیرجند زینب کریم زاده مطلق دانشآموخته کارشناسی ارشد ارزیابی و آمایش سرزمین، مهندسی محیطزیست، دانشکده منابع طبیعی و محیطزیست، دانشگاه بیرجند علی اشرفی عضو هیأت علمی دانشگاه بیرجند و دانشجوی دکتری سنجش از دور دانشگاه تهران

مقاله حاضر، کاربرد ارزیابی چند معیاره را برای آنالیز تناسب اراضی شهرستان بیرجند که با وسعتی حدود 391900هکتار، در مرکز استانخراسان جنوبی واقع شده است، نشان میدهد. شهرستان بیرجند که از سال 1333مرکز استان خراسان جنوبی شده است، بهعنوان مرکزتمرکز جمعیتی استان دارای پتانسیلهای مناسب جهت توسعه کاربری گردشگری است که تاکنون کاری درخور برای آن انجام نشده است.فعالیتهای گردشگری بدون برنامهریزی و مدیریت صحی...

2001
GANGBING SONG BRIJ N. AGRAWAL

This paper presents a new approach to vibration reduction of >exible spacecraft during attitude control by using pulse width pulse frequency (PWPF) modulator for thruster Cring and smart materials for active vibration suppression. The experiment was conducted on the Naval Postgraduate School (NPS)’s >exible spacecraft simulator (FSS), which consists of a central rigid body and an L-shape >exibl...

1994
Scott B. Hu John E. Laird

Situated, interactive tutorial instructions give exibility in teaching tasks, by allowing communication of a variety of types of knowledge in a variety of situations. To exploit this exibility, however, an instructable agent must be able to learn diierent types of knowledge from diierent instructional interactions. This paper presents an approach to learning from exible tutorial instruction, ca...

Journal: :iranian journal of basic medical sciences 0
bahram letafat department of chemistry, central tehran-branch, islamic azad university, tehran, iran raheleh shakeri institute of biochemistry and biophysics, university of tehran, tehran, iran saeed emami department of medicinal chemistry and pharmaceutical sciences research center, faculty of pharmacy, mazandaran university of medical sciences, sari, iran saeedeh noushini department of medicinal chemistry, faculty of pharmacy and pharmaceutical sciences research center, tehran university of medical sciences, tehran, iran negar mohammadhosseini department of medicinal chemistry, faculty of pharmacy and pharmaceutical sciences research center, tehran university of medical sciences, tehran, iran nayyereh shirkavand department of chemistry, central tehran-branch, islamic azad university, tehran, iran

objective(s): chalcones and their rigid analogues represent an important class of small molecules having anticancer activities. therefore, in this study the synthesis and cytotoxic activity of new 3-benzylidenchroman-4-ones were described as rigid chalcone analogues.   materials and methods: the reaction of resorcinol with 3-chloropropionic acid in the presence of cf3so3h was afforded correspon...

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