نتایج جستجو برای: artificial collapse

تعداد نتایج: 323334  

Journal: :IEEE Potentials 1994

ژورنال: :مجله دانشگاه علوم پزشکی قم 0
روناک صحتی ronak sehati urmia universityدانشگاه ارومیه فرح فرخی farah farokhi urmia universityدانشگاه ارومیه مرتضی دلیری morteza daliri national institute of genetic engineering & biotechnologyپژوهشگاه ملی مهندسی ژنتیک و زیست فناوری مجتبی دشتی زاد mojtaba dashtizad national institute of genetic engineering & biotechnologyپژوهشگاه ملی مهندسی ژنتیک و زیست فناوری

زمینه و هدف: مطالعات نشان داده است هرچند نرخ لانه گزینی بلاستوسیست در مقایسه با مراحل قبل، بالاتر است، اما در مقابل، نرخ بقای رویان های ذوب شده در این مرحله نسبت به مراحل دیگر پایین تر بوده که می تواند ناشی از وجود حفره پر از مایع بلاستوسل و افزایش احتمال تشکیل کریستال های یخ باشد. همچنین وجود این مایع می تواند به عنوان مانعی در مقابل نفوذ مواد محافظ سرما به داخل جنین عمل کند. در این مطالعه با ...

1996
P. Monaco

A new theory for determining the mass function of cosmic structures is presented. It relies on a realistic treatment of collapse dynamics. Gravitational collapse is analyzed in the Lagrangian perturbative framework. Lagrangian perturbations provide an approximation of truncated type, i.e. small-scale structure is filtered out. The collapse time is suitably defined as the instant at which orbit ...

2015
Derya Deniz Junho Song Jerome F. Hajjar

Structural collapse is traditionally associated with the exceedance of a target value of inter-story drift or plastic hinge rotation at structural components. However, such an approach may not accurately estimate the structural collapse potential due to load redistribution and variation of structural damage within the structure. Moreover, collapse prediction may be sensitive to such assumed thr...

Journal: :Physical review applied 2022

The resistive switching induced in Mott materials by a strong applied voltage allows for artificial spiking neurons with great potential. However, controlling the collapse is challenge, as we lack physical understanding of phenomenon. Here numerical simulations and experiments reveal how thermal electronic effects jointly contribute to intrinsically stochastic, more surprisingly it Poissonian p...

Journal: :ASAIO journal 2005
Heide J Eash Brian J Frankowski Brack G Hattler William J Federspiel

An intravenous respiratory support catheter, the next generation of artificial lungs, is being developed in our laboratory to potentially support acute respiratory failure or patients with chronic obstructive pulmonary disease with acute exacerbations. A rapidly pulsating 25 ml balloon inside a bundle of hollow fiber membranes facilitates supplemental oxygenation and CO2 removal. In this study,...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1999
J A Encinas K Kikuchi A Chedotal F de Castro C S Goodman T Kimura

The semaphorins comprise a large family of membrane-bound and secreted proteins, some of which have been shown to function in axon guidance. We have cloned a transmembrane semaphorin, Sema W, that belongs to the class IV subgroup of the semaphorin family. The mouse and rat forms of Sema W show 97% amino acid sequence identity with each other, and each shows about 91% identity with the human for...

2013
Jure Skejić Wayne C. Hodgson

This study looked at how toxic proteins in venoms of adult Australian eastern Brown snakes Pseudonaja textilis from South Australian and Queensland populations interact with physiological functions of the lab SD rat Rattus norvegicus. Circulatory collapse and incoagulable blood occurred instantly after injection of venom under the dorsal skin of anaesthetised and mechanically ventilated rats in...

Journal: :Eng. Appl. of AI 2007
Manjaree Pandit Laxmi Srivastava Vijay Singh Jaydev Sharma

Power system security is one of the major concerns in competitive electricity markets driven by trade demands and regulations. If the system is found to be insecure, timely corrective measures need to be taken to prevent system collapse. This paper presents an approach based on a counterpropagation neural network (CPNN) to identify and rank the contingencies expected to reduce or eliminate the ...

Journal: :Biophysical journal 2002
Hyunbum Jang Carol K Hall Yaoqi Zhou

The thermodynamic properties for three different types of off-lattice four-strand antiparallel beta-strand protein models interacting via a hybrid Go-type potential have been investigated. Discontinuous molecular dynamic simulations have been performed for different sizes of the bias gap g, an artificial measure of a model protein's preference for its native state. The thermodynamic transition ...

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