نتایج جستجو برای: cluster complex

تعداد نتایج: 969875  

2014
Chao Tong Jianwei Niu Bin Dai Zhongyu Xie

In complex networks, cluster structure, identified by the heterogeneity of nodes, has become a common and important topological property. Network clustering methods are thus significant for the study of complex networks. Currently, many typical clustering algorithms have some weakness like inaccuracy and slow convergence. In this paper, we propose a clustering algorithm by calculating the core ...

Journal: :Science 2006
Leonid A Sazanov Philip Hinchliffe

Respiratory complex I plays a central role in cellular energy production in bacteria and mitochondria. Its dysfunction is implicated in many human neurodegenerative diseases, as well as in aging. The crystal structure of the hydrophilic domain (peripheral arm) of complex I from Thermus thermophilus has been solved at 3.3 angstrom resolution. This subcomplex consists of eight subunits and contai...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1393

چکیده در این پایان نامه، در ابتدا از واکنش بین پالادیم استات و آلیزارین زرد gg کمپلکس دو هسته ای ارتوپالادیت [pd{? 2(c,n) -{5-(3-nitrophenylazo) salicylic acid}}(µ-oac)]2 (1) ستنز شد. از واکنش این کمپلکس دو هسته ای ارتوپالادیت (1) با لیگاند های تک دندانه تری فنیل فسفین (pph3)، 6،4،2-تری متیل-پیریدین(me3py) کمپلکس های تک هسته ای (2)، (3) سنتز شدند. همچنین از واکنش بین پالادیم استات و آلیزارین ز...

Journal: :The Astronomical Journal 2021

Analyzing the dynamical state of nearby young massive star clusters is essential understanding cluster formation and evolution during their earliest stages. In this work we analyze stellar gas kinematics Westerlund 2 (Wd2) using data from integral field unit MUSE complement them with proper motions Gaia DR2. The mean radial velocity $15.9\,{\rm km}\,{\rm s}^{-1}$ agrees assumption that Wd2 resu...

2008
N. Werner

We present here the results of a detailed study of the X-ray properties of the cluster of galaxies Abell 3128 (z = 0.06), based on the analysis of deep (100 ks) XMM-Newton data. The most obvious feature of the X-ray morphology of A3128 is the presence of two X-ray peaks separated by ∼12. By detecting the redshifted Fe K line, we find that the Northeast (NE) X-ray peak observed toward A3128 is a...

Journal: :desert 2008
a. m. kalteh p. hjorth

over the last decade or so, artificial neural networks (anns) have become one of the most promising tools formodelling hydrological processes such as rainfall runoff processes. however, the employment of a single model doesnot seem to be an appropriate approach for modelling such a complex, nonlinear, and discontinuous process thatvaries in space and time. for this reason, this study aims at de...

2009
JIN-QING FANG Xin-Biao Lu

The conventional chaos control is only to reach single control objective at each time. Different control objective only can be realized at another time. Obviously, that is not enough for applications of chaos control, especially for chaotic connected complex networks. Therefore multi-objective control (MOC) and cluster synchronization are naturally raised and deeded in practice, as well as some...

2007
Tseng-Pin Lee Victor B. Kreng

Clustering of data around one seed does not work well if the shape of the cluster is elongated or non-convex. A complex shaped cluster requires several seeds. This study developed a nonparametric multi-seed data clustering approach which splits and merges procedures to handle the complex shapes of clusters. The splitting process utilizes a genetic algorithm to search for the appropriate cluster...

2012
Hannah R. Bridges Eckhard Bill Judy Hirst

In mitochondria, complex I (NADH:quinone oxidoreductase) couples electron transfer to proton translocation across an energy-transducing membrane. It contains a flavin mononucleotide to oxidize NADH, and an unusually long series of iron-sulfur (FeS) clusters that transfer the electrons to quinone. Understanding electron transfer in complex I requires spectroscopic and structural data to be combi...

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