نتایج جستجو برای: k epsilon

تعداد نتایج: 387854  

Journal: :Clinica chimica acta; international journal of clinical chemistry 2009
Yi-Chun Chen Guey-Jen Lee-Chen Yih-Ru Wu Fen-Ju Hu Hsiu-Chuan Wu Hung-Chou Kuo Chun-Che Chu Shan-Jin Ryu Sien-Tsong Chen Chiung-Mei Chen

BACKGROUND To determine the interaction effect between APOE polymorphism and lipid concentrations and alcohol use on spontaneous deep intracerebral hemorrhage (SDICH) risks. METHODS We enrolled 217 SDICH patients and 280 controls. Anthropometrics, personal history, and concentrations of total cholesterol (TC), high-density lipoprotein cholesterol, low-density lipoprotein cholesterol (LDL-c), ...

Journal: :Physical review 2021

We put the upper bound on gravitational waves (GWs) induced by scalar-field fluctuations during inflation. In particular, we focus case where scalar get amplified within some subhorizon scales mechanism Since energy conservation law leads to density of fluctuations, amplitudes are constrained and therefore GWs also. Taking into account this, derive GWs. As a result, find that GW power spectrum ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی و مهندسی 1390

خنک کاری لایه ای فناوری پیشرفته ای است که در توربین های گازی نوین به منظور محافظت از سطح پره ها در مقابل تنش های حرارتی ناشی از جریان داغ خروجی از محفظه احتراق با دمایی بالاتر از نقطه ذوب پره به کار گرفته می شود. در روش مذکور بخشی از هوای خروجی از کمپرسور توسط کانال های داخلی تعبیه شده در پره به سطح پره تزریق می شود تا با ایجاد یک لایه محافظ حرارتی روی سطح آن موجب افزایش حد مجاز دمای گازهای ورو...

Journal: :Forum Mathematicum 2021

Abstract By work of John Tate we can associate an epsilon factor with every multiplicative character a local field. In this paper, determine the explicit signs factors for symplectic type characters K × {K^{\times}} , where / F {K/F} is wildly...

In this study, the thermal characteristics of turbulent nanofluid flow in a helical tube in the tube heat exchanger (HTTHE) were assessed numerically through computational fluid dynamics (CFD) simulation. The findings of both the turbulent models: realizable k-epsion (k-ε) and re-normalisation group (RNG) k-epsilon were compared. The temperature distribution contours show that realizable and RN...

Journal: :archives of razi institute 0

designing and producing a proper fusion construction is the most important problem of producing large quantities of a properly folded functional protein. this construction should have all necessary components of a real gene. a good designed fusion gene construction could be cloned into a good and suitable host. clostridium perfringens is an important pathogen of humans and livestock and produce...

Journal: :CoRR 2017
Nabil H. Mustafa Kasturi R. Varadarajan

The use of random samples to approximate properties of geometric configurations has been an influential idea for both combinatorial and algorithmic purposes. This chapter considers two related notions—ǫ-approximations and ǫ-nets—that capture the most important quantitative properties that one would expect from a random sample with respect to an underlying geometric configuration. An example pro...

Journal: :Machine Learning 2022

In large-scale machine learning, of central interest is the problem approximate nearest neighbor (ANN) search, where goal to query particular points that are close a given object under certain metric. this paper, we develop novel data-driven ANN search algorithm data structure learned by fast spectral technique based on s landmarks selected ridge leverage scores. We show with overwhelming proba...

Journal: :Memoirs of the American Mathematical Society 2021

This article is concerned with the question of uniqueness self-similar profiles for Smoluchowski’s coagulation equation which exhibit algebraic decay (fat tails) at infinity. More precisely, we consider a rate kernel K <mml:annotation encoding=...

2015
Qian-Ping Gu Gengchun Xu

We give a $(1+\epsilon)$-approximate distance oracle with $O(1)$ query time for an undirected planar graph $G$ with $n$ vertices and non-negative edge lengths. For $\epsilon>0$ and any two vertices $u$ and $v$ in $G$, our oracle gives a distance $\tilde{d}(u,v)$ with stretch $(1+\epsilon)$ in $O(1)$ time. The oracle has size $O(n\log n ((\log n)/\epsilon+f(\epsilon)))$ and pre-processing time $...

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