نتایج جستجو برای: layered system

تعداد نتایج: 2258148  

Journal: :Nature materials 2014
J H Lee G Luo I C Tung S H Chang Z Luo M Malshe M Gadre A Bhattacharya S M Nakhmanson J A Eastman H Hong J Jellinek D Morgan D D Fong J W Freeland

The A(n+1)B(n)O(3n+1) Ruddlesden-Popper homologous series offers a wide variety of functionalities including dielectric, ferroelectric, magnetic and catalytic properties. Unfortunately, the synthesis of such layered oxides has been a major challenge owing to the occurrence of growth defects that result in poor materials behaviour in the higher-order members. To understand the fundamental physic...

2003
Ping Wu Jiangchuan Liu Bo Li

Layered multicast is a promising technique for distributing video to a set of heterogeneous receivers. While several layered multicast approaches have been proposed, prior work usually perform adaptation on the receiver’s side and use static rate allocation techniques at the sender’s side. In this paper, we show an adaptation framework that improves stability and fairness of receivers by employ...

Strecker reaction is one of the simplest multicomponent reactions. It used for synthesis of chiral α-amino nitriles. This reaction was carried out in the presence of catalytic amount of layered double hydroxides (LDHs). In this study, simple and practical method for the synthesis of this class of catalysts is provided. The results shown that LDH is the good heterogen catalyst for synthesis of c...

2016
Yunong Yang Dingyi Fang

Emotional understanding and expression is a fundamental basis for human-computer interaction, and how to read the human mind through facial expression recognition technology has become a hot issue. Large dimension of image data, sample calibration difficulties, and small size training sample set make the efficient facial expression recognition task difficult. DBN (Deep Belief Network) achieves ...

2014
Deepti Verma

We study vibrations of singleand multi-layered rectangular graphene nanoribbons (GNRs) using molecular mechanics (MM) simulations by employing the MM3 potential. Two sets of boundary conditions are considered, namely, clamping atoms on either all four edges (CCCC) or on the two small edges (CFCF). Furthermore, we consider two scenarios for a single-layered GNR – one in which an interior atom is...

2014
Tejaswini Badgujar

Intrusion detection system has become a core component in computer network era. It is expanding day by day. That is why, there is a need for security from attackers, spammers and criminal enterprises as they are growing up with the expansion of Internet. An Intrusion Detection System is integrated with neural network using layered framework to build an effective computer network. This existing ...

1995
David Dodson

COMAIDE is a toolkit for user-system cooperation through joint multi-focal graph browsing. It supports cooperative force-directed layout management, concurrent with dialogue handling, for heterogeneous multi-layered 3D interactive diagrams. The layout manager's intu-itively`natural' animations of multi-layered 3D graph drawings support: 1. Cooperative tidying of user-manipulable 3D layout; 2. O...

2014
Matthias Nieuwenhuisen Sven Behnke

Successful operation of micro aerial vehicles in partially known environments requires globally consistent plans based on incomplete environment models and quick reactions to unknown obstacles by means of real-time planning of collision-free trajectories. In this paper, we propose a complete layered mission and navigation planning system based on coarse prior knowledge and local maps from omnid...

2004
J. Salter N. Antonopoulos James Salter Nick Antonopoulos

Current research into resource discovery in peer-topeer networks is largely focussed on the use of Distributed Hash Tables and multi-layered topologies. In this paper we present a resource discovery system capable of resolving keyword-value pair queries, based on a two-layered Chord ring architecture. We show how the base topology augmented with shortcuts between layers and selection of ring me...

Journal: :J. Comput. Physics 2014
Emmanuel Audusse Fayssal Benkhaldoun Saida Sari Mohammed Seaïd Pablo Tassi

A fast finite volume solver for hydrostatic multi-layered shallow water flows with mass exchange is investigated. In contrast to many models for multi-layered hydrostatic shallow water flows where the immiscible suppression is assumed, the present model allows for mass exchange between the layers. The multi-layered shallow water equations form a system of conservation laws with source terms for...

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