نتایج جستجو برای: minimum modulus

تعداد نتایج: 191245  

Journal: :Physical review research 2023

The bulk modulus of a solid-like biomolecular condensate can make the indissoluble in conditions where liquid condensates dissolve. A phase diagram with minimum for indissolubility is obtained.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده کویر شناسی 1390

امروزه از مهمترین بحث هایی که بخش زیادی از زمان محققین را به خود اختصاص داده است، مباحث مربوط به آب به عنوان حیاتی ترین ماده بقای حیات انسان. تغییر در آب در دسترس می تواند واکنش جدی در پایداری آب زیست محیطی مناطق خشک و نیمه خشک ایجاد کند. لذا یکی از پر کاربردترین مباحث مربوط به هیدرولوژی بررسی هیدروگراف جریان می باشد که امکان مطالعه حجم سیلاب و میزان ذخیره حوزه پس از قطع بارندگی و نیز سهم آب زی...

2014
LI Xu GU Tao

To study on the characteristics of the vibration signals of coal and stone hitting the armor plate during caving, a hybrid algorithm based on first order forward difference and wavelet transform modulusmaxima method is presented which can be used in the longwall top coal face. First, in order to reduce the noise interference, the pre-processing of the vibration signals is done by the first orde...

2006
Haihu Qin Patrick T. Mather Jong-Beom Baek Loon-Seng Tan

As a continuation of previous work involving synthesis of an allyl-functionalized hyperbranched polyimide, AT-PAEKI, we have studied the use of this reactive polymer as a modifier of bisphenol-A based bismaleimide resin (BPA-BMI). This was pursued in anticipation of improvements in processability as well as physical properties including glass transition temperature, elastic modulus, and fractur...

2014
LI Xu GU Tao

To study on the characteristics of the vibration signals of coal and stone hitting the armor plate during caving, a hybrid algorithm based on first order forward difference and wavelet transform modulusmaxima method is presented which can be used in the longwall top coal face. First, in order to reduce the noise interference, the pre-processing of the vibration signals is done by the first orde...

Journal: :Advanced intelligent systems 2023

Bio-Inspired Metastructure Evolution In article number 2300019, Qianyun Zhang, Amir H. Alavi, and co-workers explore the principles of natural evolution for design discovery thousands metastructures with hitherto unknown structures new modalities operation. The evolutionary computational approach uses representative unit cells simple shapes to launch process morphologically evolves complicated ...

2001
D. S. LUBINSKY

Let m, n ≥ 0, λ > 1, and R be a rational function with numerator, denominator of degree ≤ m,n, respectively. In several applications, one needs to know the size of the set S ⊂ [0, 1] such that for r ∈ S, max |z|=r |R (z)| / min |z|=r |R (z)| ≤ λ. In an earlier paper, we showed that meas (S) ≥ 1 4 exp ( − 13 log λ ) , where meas denotes linear Lebesgue measure. Here we obtain, for each λ, the sh...

2010
K.-H. FÖRSTER M. A. KAASHOEK

Let 7(S) denote the reduced minimum modulus of a linear operator S acting in a complex Banach space X, and let / denote the identity on X. In this paper it is shown that for a (not necessarily bounded) Fredholm operator T acting in X, the limit lim y^fy/rt exists and is equal to the supremum of all positive numbers S such that the dimension of the null space and the codimension of the range of ...

2005
D. S. LUBINSKY

Let a 0; " > 0. We use potential theory to obtain a sharp lower bound for the linear Lebesgue measure of the set ( r 2 [0; 1] : r maxjtj=1 jP (t)j minjtj=r jP (t)j " ) : Here P is an arbitrary polynomial of degree n. We then apply this to diagonal and ray Padé sequences for functions analytic (or meromorphic) in the unit ball. For example, we show that the diagonal f[n=n]gn=1 sequence provides ...

Journal: :journal of petroleum science and technology 0
bader h. albusairi kuwait university adam al-mulla kuwait university

the rheological properties of four different kuwaiti crude oils in the presence of polyacrylamide (paa) were investigated. paa was varied at three different concentrations of 25, 50, and 75 ppm to study the viscoelastic properties in the untreated samples. four different temperatures (25, 30, 35, and 40 °c) were used to evaluate different viscoelastic parameters of the treated and untreated kuw...

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