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MUETEK Analytic GmbH和BTG Pulp & paper technology合并业务

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造纸信息 2001年第9期 20-页

BTG浆纸科技公司(BTG Pulp ＆ paper Technolo-gy)于2001年1月16日,以其在瑞士Eclpens的集团总部取得了德国Muetek Analytic BmbH多数股权。BTG聘请*** Bley和***

关键词： BTG Pulp MUETEK Analytic GmbH paper technology

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Optimum Combining in Rician Fading:Performance Analysis in Asymptotic SNR Regimes

Optimum Combining in Rician Fading:Performance Analysis in A...

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2008 IEEE International Conference on Communications(ICC 2008)

作者： Raymond H.Y.Louie Matthew R.McKay Iain B.Collings Telecommunications Lab School of Electrical and Information EngineeringUniversity of SydneyAustralia Wireless Technologies Laboratory ICT CentreCSIROSydneyAustralia Department of Electronic and Computer Engineering Hong Kong University of Science and Technology

This paper analyzes the performance of multiuser optimum combining （OC） systems where the desired user undergoes Rician fading,and the received signals are corrupted by Rayleigh-faded interference and noise. We consider the SER and ergodic capacity in asymptotic SNR regimes,and derive new closed-form expressions for key performance parameters such as the diversity order,array gain,and wideband slope. These results clearly reveal the impact of the Rician K-factor,which is shown to be advantageous to performance in all cases.

关键词： Rician channels Performance analysis Signal to noise ratio Diversity reception Receiving antennas Interference paper technology Closed-form solution Adaptive arrays Linear antenna arrays

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On the Use of Multiple Antennas to Reduce MAC Layer Coordination in Ad Hoc Networks

On the Use of Multiple Antennas to Reduce MAC Layer Coordina...

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2008 IEEE International Conference on Communications(ICC 2008)

This paper investigates an important tradeoff in wireless ad hoc networks concerning the allocation of resources to the PHY and MAC *** compare two approaches:One which employs a non-coordinated slotted ALOHA MAC with multi-antenna PHY,and one which employs a tightly coordinated MAC and single-antenna *** both cases,we derive new closed-form throughput *** on these,we show that using simple slotted ALOHA in conjunction with multiple antennas can provide a higher throughput than fully coordinated access protocols in various practical *** results are confirmed through comparison with Monte Carlo simulations.

关键词： Ad hoc networks Physical layer Throughput Media Access Protocol Peer to peer computing Interference Slot antennas Time division multiple access Array signal processing paper technology

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Coating paper with the Fluorescence Assistant of Ternary Complexes of CMC/Eu/TTA

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Chemical Research in Chinese Universities 2001年第Z1期17卷 69-页

作者： YE Jun South China Univ. of Tech. Research Institute of Light Industry Chemical Engineering South China Univ. of Tech.

Carboxymethyl cellulose (CMC), one of the derivatives of cellulose, are mainly used as thickeners, dispersants, adhesives, extenders and films because of their water solubility and gel-forming properties. Especially, because it presents more and more excellent properties on the making paper technology, the great of paper engineers attach importance to it.

关键词： water solubility paper technology

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