نتایج جستجو برای: dimensional case

تعداد نتایج: 1715088  

2010
Vincent Calvez José Antonio Carrillo

We analyze the rate of convergence towards self-similarity for the subcritical KellerSegel system in the radially symmetric two-dimensional case and in the corresponding one-dimensional case for logarithmic interaction. We measure convergence in Wasserstein distance. The rate of convergence towards self-similarity does not degenerate as we approach the critical case. As a byproduct, we obtain a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم پایه 1390

چکیده: سیستم ایمنی اولین خط دفاعی علیه پاتوژن های مهاجم می باشد. گیرنده های شبه toll (tlrs) یکی از گیرنده های سیستم ایمنی ذاتی هستند که پاتوژن های مختلف را شناسایی کرده و به عنوان پل ارتباطی بین سیستم ایمنی ذاتی و اکتسابی عمل می کنند. برای مثال tlr2 به صورت همودایمر، لیپوتیکوئیک اسید باکتری های گرم مثبت را شناسایی می کند اما در شکل هترودایمر با tlr1 و tlr6 به ترتیب در شناسایی لیپو پروتئین ها ی...

Journal: :فیزیک زمین و فضا 0
سرمد قادر استادیار، گروه فیزیک فضا، مؤسسة ژئوفیزیک دانشگاه تهران، ایران عباسعلی علی اکبری بیدختی استاد، گروه فیزیک فضا، مؤسسة ژئوفیزیک، دانشگاه تهران، ایران سعید فلاحت دانشجوی کارشناسی ارشد ژئوفیزیک، گروه فیزیک فضا، مؤسسة ژئوفیزیک دانشگاه تهران، ایران

the compact finite difference schemes have been found to give simple ways of reaching the objectives of high accuracy and low computational cost. during the past two decades, the compact schemes have been used extensively for numerical simulation of various fluid dynamics problems. these methods have also been applied for numerical solution of some prototype geophysical fluid dynamics problems ...

Journal: :J. Comput. Physics 2016
J. Sigüenza S. Mendez D. Ambard F. Dubois F. Jourdan R. Mozul F. Nicoud

This paper constitutes an extension of the work of Mendez, Gibaud & Nicoud: An unstructured solver for simulations of deformable particles in flows at arbitrary Reynolds numbers, Journal of Computational Physics, 256(1): 465-483 (2014), for three-dimensional simulations of deformable membranes under flow. An immersed thick boundary method is used, combining the immersed boundary method with a t...

2002
Christian Bischof Lucas Roh Norman Chang Ken Lee Valery Kanevsky Soo-Young Oh

Automatic differentiation is a technique for computing derivatives accurately and efficiently with minimal human effort. We employed this technique to generate derivative information of FCAP2 (2-D) and FCAP3 (3-D) programs that simulate the parasitic effects of interconnects and devices. This derivative information is used in the statistical modeling of worst-case interconnect delays and on-chi...

Journal: :Journal of Computing and Information Science in Engineering 2021

Abstract Symmetric lifting is a common manual material handling strategy in daily life and the main cause of low back pain. In literature, symmetric mainly simulated by using two-dimensional (2D) models because their simplicity computational cost. practice, however, can generate asymmetric kinetics especially when weight heavy based on 2D misses this important information. Therefore, three-dime...

Journal: :Computational Statistics & Data Analysis 2016
Britta Anker Bak Jens Ledet Jensen

A binary classification problem is imbalanced when the number of samples from the two groups differs. For the high dimensional case, where the number of variables ismuch larger than the number of samples, imbalance leads to a bias in the classification. The independence classifier is studied theoretically and based on the analysis two new classifiers are suggested that can handle any imbalance ...

2008
Kenneth Lane

We test Arkani-Hamed et al.’s dimensional deconstruction on a model that is predicted to have a naturally light composite Higgs boson, i.e., one whose mass M is much less than its binding scale Λ, and whose quartic coupling λ is large, so that its vacuum expectation value v ∼ M/ √ λ ≪ Λ also. We consider two different underlying dynamics—UV completions—at the scale Λ for this model. We find tha...

1998
Stephan Rudolph

Case-based reasoning is a method intended to develop knowledge based systems by imitating the behavior of human experts. Compared to classical rule-based reasoning, case-based reasoning attempts to solve new problems by using previous cases from a case base and adapting the solution of a similar problem according to the parameters of the new situation. In case-based systems, the quality of the ...

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