نتایج جستجو برای: leakage parameter

تعداد نتایج: 245023  

Journal: :Bulletin of mathematical biology 2000
J Feng D Brown

Can we express biophysical neuronal models as integrate-and-fire (IF) models with leakage coefficients which are no longer constant, as in the conventional leaky IF model, but functions of membrane potential and other biophysical variables? We illustrate the answer to this question using the FitzHugh-Nagumo (FHN) model as an example. A novel IF type model, the IF-FHN model, which approximates t...

Journal: :European Physical Journal Plus 2022

We consider optimizations of Lenoir engine within a quantum dynamical field consisting N noninteracting fermions trapped in multilevel infinite potential square-well. Fermions play role as working substance the with each particle nested at different levels energy. optimized this heat model by analysing physical parameter and deriving optimum properties model. The we investigated consists one hi...

Journal: :نشریه مهندسی عمران و نقشه برداری 0
امیرحسین اسدیانی یکتا دانشگاه آزاد اسلامی مسعود تابش دانشگاه تهران

leakage in water distribution networks causes waste of water and economical losses. in this paper a new method is presented to calculate nodal and pipes leakage in water distribution systems using capabilities of epanet2.10 software. the method estimate the total water losses in the system based on iwa methodology using minimum night flow (mnf) measurements. recognising the pressure dependency ...

2010
Zvika Brakerski Yael Tauman Kalai Jonathan Katz Vinod Vaikuntanathan

In recent years, there has been a major effort to design cryptographic schemes that remain secure even if part of the secret key is leaked. This is due to a recent proliferation of side channel attacks which, through various physical means, can recover part of the secret key. We explore the possibility of achieving security even with continual leakage, i.e., even if some information is leaked e...

Journal: :Journal of cardiovascular ultrasound 2015
Hyemoon Chung Byunghwan Jeon Hyuk-Jae Chang Dongjin Han Hackjoon Shim In Jeong Cho Chi Young Shim Geu-Ru Hong Jung-Sun Kim Yangsoo Jang Namsik Chung

BACKGROUND After left atrial appendage (LAA) device closure, peri-device leakage into the LAA persists due to incomplete occlusion. We hypothesized that pre-procedural three-dimensional (3D) geometric analysis of the interatrial septum (IAS) and LAA orifice can predict this leakage. We investigated the predictive parameters of LAA device closure obtained from baseline cardiac computerized tomog...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1375

in chapter one we will describe definitions and preliminary results to provide the global context of our own results to be presented in detail in the subsequent chapters in chapter two we consider degree-one maps of the circle and we study their rotation set. our main result in this chapter says that if the map is topologically mixing then its rotation interval is nontrivial (that is, not reduc...

Journal: :Energies 2023

Due to the characteristics of inductance parameter mismatch and back electromotive force harmonics caused by novel leakage flux branches other non-ideal factors for variable-leakage-flux permanent magnet (VLF-PM) motor, its control system suffers from a deteriorated performance rotor position estimation. To overcome problems mentioned above, an adaptive tracking estimator is proposed in this pa...

Journal: :iranian journal of science and technology (sciences) 2005
k. erenturk

the design and application of a fuzzy logic based controller to a leakage current relay waspresented in this paper. a novel approach based on fuzzy logic to form the tripping action of leakagecurrent relay was investigated. in addition to the theoretical aspect of fuzzy logic, detection of a leakagecurrent, measurement of the leakage current, determination of its duration, trip opening of fault...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد 1376

in this thesis our aim is to construct vector field in r3 for which the corresponding one-dimensional maps have certain discontinuities. two kinds of vector fields are considered, the first the lorenz vector field, and the second originally introced here. the latter have chaotic behavior and motivate a class of one-parameter families of maps which have positive lyapunov exponents for an open in...

ژورنال: علوم آب و خاک 2017

The water supply networks have always been of significance to researchers as a hydraulic system of transferring and distributing water. The pressure gradient is the main reason of water transfer in networks, and in case of non-standard pressure increase, the undesirable phenomenon of leakage occurs in the network. Leakage in urban water distribution networks causes water waste and enormous fina...

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