نتایج جستجو برای: acceleration constraint

تعداد نتایج: 124060  

Journal: :Computat. and Visualiz. in Science 2011
Hans De Sterck Killian Miller Geoffrey Sanders

Recently, it was shown how the convergence of a class of multigrid methods for computing the stationary distribution of sparse, irreducible Markov chains can be accelerated by the addition of an outer iteration based on iterant recombination. The acceleration was performed by selecting a linear combination of previous fine-level iterateswith probability constraints to minimize the two-norm of t...

2012
Thomas Uchida John McPhee

When modeled with ideal joints, many vehicle suspensions contain closed kinematic chains, or kinematic loops, and are most conveniently modeled using a set of generalized coordinates of cardinality exceeding the degrees-of-freedom of the system. Dependent generalized coordinates add nonlinear algebraic constraint equations to the ordinary differential equations of motion, thereby producing a se...

Journal: :Genetics 2013
Nathan L Clark Eric Alani Charles F Aquadro

Evolutionary rates of functionally related proteins tend to change in parallel over evolutionary time. Such evolutionary rate covariation (ERC) is a sequence-based signature of coevolution and a potentially useful signature to infer functional relationships between proteins. One major hypothesis to explain ERC is that fluctuations in evolutionary pressure acting on entire pathways cause paralle...

Journal: :Physics Letters B 2022

In this letter, we investigate the cosmic expansion scenario of universe in framework $f(R,L_m)$ gravity theory. We consider a non-linear model, specifically, $f(R,L_m)=\frac{R}{2}+L_m^n + \beta$, where $n$ and $\beta$ are free model parameters. Then derive motion equations for flat FLRW obtain exact solution corresponding field equations. estimate best fit ranges parameters by using updated $H...

Journal: :international journal of optimaization in civil engineering 0
m. mohebbi h. dadkhah

semi-active base isolation system has been proposed mainly to mitigate the base drift of isolated structures while in most cases, its application causes the maximum acceleration of superstructure to be increased. in this paper, designing optimal semi-active base isolation system composed of linear base isolation system with low damping and magneto-rheological (mr) damper has been studied for co...

ژورنال: :مدیریت تولید و عملیات 0
راشد صحرائیان دانشگاه شاهد علیرضا طاهری مقدم دانشگاه شاهد

در این مقاله یک مدل غیر قطعی زنجیره تأمین حلقه بسته ، توسعه داده شده است. هدف اول این مدل، حداکثر سازی سود کل زنجیره می باشد. تابع هدف دوم، حداقل سازی استفاده از مواد خام است. به عبارت دیگر هدف دوم حداکثر کردن میزان بازیافت می باشد؛ که یکی از دلایل پیدایش سیستم های حلقه بسته نیز همین امر بود. بهینه سازی در مدل مذکور توسط الگوریتم ژنتیک صورت گرفته و توسط روش ε-constraint به یافتن خط بهینه پارتو ...

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