نتایج جستجو برای: k epsilon
تعداد نتایج: 387854 فیلتر نتایج به سال:
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), ...
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 ...
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...
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...
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...
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...
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...
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=...
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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