نتایج جستجو برای: semi pi property

تعداد نتایج: 340896  

Journal: :Chemical communications 2008
Dong-Chan Lee Kelly K McGrath Kyoungmi Jang

This paper reports the formation of an organogel of an asymmetric bisphenazine through the growth of one-dimensional nanofibers via a coopertive interplay of pi-pi interaction, hydrogen bonding, and van der Waals interaction and the colorimetric acid sensing property of the nanofibers.

2008
Jason P. Bell

Abstract We study subfields of quotient division algebras of domains of finite GK dimension and introduce a combinatorial property we call the straightening property. We show that many classes of algebras have this straightening property and show that if A is a domain of GK dimension d with this property that is not PI, then the maximal subfields of the quotient division algebra of A have trans...

2015
Silouanos Brazitikos

We provide a new quantitative version of Helly’s theorem: there exists an absolute constant α > 1 with the following property: if {Pi : i ∈ I} is a finite family of convex bodies in R with int (⋂ i∈I Pi ) 6= ∅, then there exist z ∈ R, s 6 αn and i1, . . . is ∈ I such that z + Pi1 ∩ · · · ∩ Pis ⊆ cn 3/2 ( z + ⋂

2017
J. K. Koga S. S. Bulanov Z. Gong X. Q. Yan S. V. Bulanov

S. V. Bulanov1,†, T. Zh. Esirkepov1, J. K. Koga1, S. S. Bulanov2, Z. Gong3, X. Q. Yan3,4 and M. Kando1 1Department of Advanced Photon Research, Kansai Photon Research Institute, National Institutes for Quantum and Radiological Science and Technology, 8-1-7 Umemidai, Kizugawa-shi, Kyoto 619-0215, Japan 2Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA 3State Key Laboratory of Nucle...

2004
Kikuo Maekawa

Phonetic manifestation of paralinguistic information (PI) like speaker’s attitude and intention is a unique property of speech communication. Production and perception of six PI types were examined using Japanese. In speech production, acoustic and articulatory analyses revealed that speech signal and the underlying articulatory gesture differed systematically and considerably under the specifi...

افضل آهنگران, ناهید, حسینی, سید احسان, دلیرژ, نوروز,

Background and purpose: Royal jelly (RJ) is a substance synthesized by worker bee- is shown to have various biological activities on different cells and tissues of the human body. In this study the effect of RJ on peripheral blood mononuclear cells cytotoxicity against the K562 Erythroleukemia cell line was investigated. Material and methods: In this experimental study human PBMCs (106 cell...

2014
Naipeng Dong

Privacy protection is an important requirement in both everyday life and the Inter-net. As the Internet is an open network, adversaries can observe and manipulate data flowing over it. To ensure privacy in communications over open networks, cryptographic protocols have been widely used, and thus, proposing such protocols has become a popular research area. However, design of cryptographic proto...

2012
Guang-Jian Du Zhiyu Zhang Xiao-Dong Wen Chunhao Yu Tyler Calway Chun-Su Yuan Chong-Zhi Wang

Green tea is a popular drink consumed daily by millions of people around the world. Previous studies have shown that some polyphenol compounds from green tea possess anticancer activities. However, systemic evaluation was limited. In this study, we determined the cancer chemopreventive potentials of 10 representative polyphenols (caffeic acid, CA; gallic acid, GA; catechin, C; epicatechin, EC; ...

Journal: :SIAM J. Matrix Analysis Applications 1980
Richard P. Stanley

Techniques from algebraic geometry, in particular the hard Lefschetz theorem, are used to show that certain finite partially ordered sets O x derived from a class of algebraic varieties X have the k-Sperner property for all k. This in effect means that there is a simple description of the cardinality of the largest subset of C) x containing no (k + 1)-element chain. We analyze, in some detail, ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده ریاضی 1390

شاخص توپولوژیک عددی حقیقی است که به یک گراف نسبت داده می شود و تحت یک ریختی گراف ثابت می ماند. شاخص های توپولوژیک برای بررسی خواص فیزیکی-شیمیایی ترکیبات شیمیایی به کار می روند. شاخص ‎ pi ‎ در مقاله ای در سال ‎2009‎ در تلاش جهت یافتن رابطه ای دقیق برای محاسبه ی شاخص ‎ pi ‎ رأسی حاصل ضرب دکارتی گراف ها معرفی شد. بعدها کاربردهای فراوانی از این شاخص در علوم نانو و شیمی به دست آمد. مطالعه ی ریاضی ای...

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