نتایج جستجو برای: diversity and topology

تعداد نتایج: 16859656  

Journal: :The Journal of organic chemistry 2014
W Cole Cronk Olga A Mukhina Andrei G Kutateladze

Modular preassembly of azaxylylene photoprecursors, halogen-substituted in the aromatic ring, their intramolecular [4 + 4] or [4 + 2] cycloadditions to tethered unsaturated pendants, and subsequent postphotochemical capstone modification of the primary photoproducts via Suzuki coupling provides rapid access to diverse biaryls of unprecedented topology. This synthetic sequence allows for rapid g...

M. Khatibinia , M. Roodsarabi, S. R. Sarafrazi,

This study focuses on the topology optimization of structures using a hybrid of level set method (LSM) incorporating sensitivity analysis and isogeometric analysis (IGA). First, the topology optimization problem is formulated using the LSM based on the shape gradient. The shape gradient easily handles boundary propagation with topological changes. In the LSM, the topological gradient method as ...

2002
Panagiotis Sebos Jennifer Yates Dan Rubenstein Albert Greenberg

We evaluate location-based methods for the auto-discovery of Shared Risk Link Groups (SRLGs), guided by the topology and design of AT&T’s next generation transport network. Under realistic scenarios, we find the methods extremely effective in identifying SRLGs and associated link diversity relationships. 2000 Optical Society of America OCIS codes: (060.0060) Fiber optics and optical communicat...

Motivated by the recent study on categorical properties of latticevalued topology, the paper considers a generalization of the notion of topological system introduced by S. Vickers, providing an algebraic and a coalgebraic category of the new structures. As a result, the nature of the category   TopSys   of S. Vickers gets clari ed, and a metatheorem is stated, claiming that (latticevalu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده علوم ریاضی و مهندسی کامپیوتر 1393

فرض کنیم a یک حلقه ی یکدار کاهش یافته (فاقد عنصر پوچ توان غیر بدیهی)باشد. خانواده تمام ایدآلهای اول سره از a را با spec(a)و خانواده تمام ایدآلهای اول مینیمال درa را باmin(a) نمایش می دهیم. مطالعات خوبی در مورد توپولوژی هسته غلافی (hull-kernel topology) یا همان توپولوژی زاریسکی،روی min(a)انجام شده است.به عنوان مثال این توپولوژی دارای پایه ای از زیرمجموعه های بستباز است. در این مقاله بر روی min...

2014
Chen Zhao Wen-Xu Wang Yang-Yu Liu Jean-Jacques Slotine

Major advances have been made recently towards understanding how to control large networks by acting only on a small subset of their elements, illuminating the impact of a network’s topology on its controllability. Yet, a detailed understanding of the synergies between network topology and intrinsic individual dynamics is still lacking. Here we offer a theoretical framework to evaluate the cont...

2016
Pushpita Chatterjee

The shortcomings of conventional bus architectures are in terms of scalability and the ever increasing demand of more bandwidth. And also the feature size of sub-micron domain is decreasing making it difficult for bus architectures to fulfill the requirements of modern System on Chip (SoC) systems. Network on chip (NoC) architectures presents a solution to the earlier mentioned shortcomings by ...

2013
LOU Jie SUN Bin LI Qingmin

Fast electromagnetic drive mechanism shows broad application prospects in many areas, but there is still a lack of unified evaluation parameters as to evaluate the dynamic characteristics due to diversity and complexity of the mechanisms. Three interrelated evaluation parameters are presented for topology analysis, namely the electromagnetic force sensitivity coefficient, the initial time const...

Journal: :Ecography 2021

Local assemblages are embedded in networks of communities connected by dispersal, and understanding the processes that mediate this local–regional interaction is central to biodiversity patterns. In network (i.e. metacommunity), strength dispersal relative intensity environmental selection typically determines whether local comprised species well-adapted environment sorting) or dominated region...

2015
Chen Zhao Wen-Xu Wang Yang-Yu Liu Jean-Jacques Slotine

Controlling complex networked systems to desired states is a key research goal in contemporary science. Despite recent advances in studying the impact of network topology on controllability, a comprehensive understanding of the synergistic effect of network topology and individual dynamics on controllability is still lacking. Here we offer a theoretical study with particular interest in the div...

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