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An Energy Minimization Algorithm based on Synergy Choice for Resourceconstrained Wireless Senor Network

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An Energy Minimization Algorithm based on Synergy Choice for...

2009 ISECS International Colloquium on Computing, Communication, Control, and Management

作者： Long Cheng-zhi 1,2,Chen Hui3.Li Li-hong 4,Wu Wei-ling 2,Xiang Man-tian5 1 School of Information Engineering,Nanchang University,Nanchang,3.003. china 2 School of Information Engineering,beijing University of Posts and Telecommunications,beijing,100876 china 3.School of Foreign Studies,Nanchang University,Nanchang,3.003. china 4 Software College,Nanchang University,Nanchang,3.003. china 5 School of Electronicsand Information,Northwestern PolytechnicalUniversity,Xian,710072 china

Cooperative diversity can be applied to energyconstrained resource-constrained wireless sensor network s to significantly reduce node energy ***,cooperation synergy must be carefully selected and coordinated to practically exploit this energy saving *** this paper we investigate synergy choice for energy minimization algorithm in a resource-constrained wireless sensor *** formulate novel and computationally efficient synergy choice heuristics for sensor nodes based on either global or local knowledge of average path loss values in the *** present extensive simulation results of cooperation in a resource-constrained wireless sensor network to show that the proposed heuristics achieve near-optimally energy efficient synergy ***,our simple synergy choice heuristics form the basis of an effective distributed cooperation protocol for improving the energy efficiency of a resource-constrained wireless sensor *** importantly from the point of view of practical implementation,we show that our synergy choice heuristic based on local information is the most effective cooperation strategy for resource-constrained resource-constrained wireless sensor networks,as it yields superior energy conservation results while enabling fully distributed and scalable cooperation.

关键词： cooperative diversity synergy choice energy efficiency resource-constrained wireless sensor networks

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神经网络规则提取及其在特征带识别中的应用

数据采集与处理 2003年第1期18卷 12-16页

作者：王涛孟庆春殷波李祯李占斌青岛海洋大学电子工程系清华大学智能技术与系统国家重点实验室北京100084 青岛海洋大学生命学院青岛

基于神经网络的规则提取通常只是针对某些特定的数据集 ,缺乏领域专家的鉴别 ,实际应用效果难以判定。本文针对分子标记特征带识别这一实际问题 ,在准确率损失尽量小的情况下剪枝训练好的神经网络 ,利用同符号规则提取算法 ( SSRE)抽取... 详细信息

基于神经网络的规则提取通常只是针对某些特定的数据集 ,缺乏领域专家的鉴别 ,实际应用效果难以判定。本文针对分子标记特征带识别这一实际问题 ,在准确率损失尽量小的情况下剪枝训练好的神经网络 ,利用同符号规则提取算法 ( SSRE)抽取规则 ,避免了繁琐的规则抽取过程。实验表明此方法的效果良好 ,结果得到生物专家的认可。

关键词：神经网络规则提取特征带识别

The Establishment of Cultivation Mode of Applied Talents in Local Universities

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第十一届全国经济管理院校工业技术学研究会

作者： Min ZHANG 1,Yingping WU 2,Jing LUO 3.1 Economics and Management Department,Huizhou University,Huizhou,china 2 Music Department,Huizhou University,Huizhou,china 3.Economics and Management Department,Huizhou University,Huizhou,china

Applied talents are those inter-disciplinary talents,which fall between academic talents and vocational *** Management in local universities should aim at cultivating advanced professionals,who not only have creative minds and practical skills but also can apply themselves to local economic and social development *** pursuance of this aim universities should reform and innovate their training plans,curriculum setting methodology,teaching methods and medium as well as practice *** outcome should be to establish a talent cultivation mode that meets local economic and social development needs,and fosters high-quality applied logistics management talents.

关键词： Local University Logistics Management Cultivation

低温地热风机盘管采暖系统运行参数的优化设计

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太阳能学报 2003年第5期24卷 638-643页

作者：朱家玲张伟天津大学地热研究培训中心天津300072

本文针对低温地热采暖方式的特点,应用技术经济学原理,分析了采暖系统最佳运行参数组合关系及其影响因素,对低温地热采暖系统中采用风机盘管运行参数进行了整体优化,最终得到不同设计负荷下地热利用温降和最佳运行工况。通过分析和优化... 详细信息

本文针对低温地热采暖方式的特点,应用技术经济学原理,分析了采暖系统最佳运行参数组合关系及其影响因素,对低温地热采暖系统中采用风机盘管运行参数进行了整体优化,最终得到不同设计负荷下地热利用温降和最佳运行工况。通过分析和优化设计,在低温地热采暖系统中采用风机盘管较其他常规采暖方式能够有效地降低运行成本,进一步深化资源的开发利用,提高经济性。

关键词：低温地热风机盘管优化设计经济评价

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中国资产评估行业发展报告(2022年度)

中国资产评估 2024年第1期 4-13页

作者：中国资产评估协会报告编写组中国资产评估协会报告编写组

为全面反映资产评估行业发展情况和发展成果,中国资产评估协会编制了《中国资产评估行业发展报告(2022年度)》,并于2023.印发。报告从行业管理、行业规模、资产评估机构、行业人才培养、行业准则建设及研究、行业监管、行业党建、行业... 详细信息

为全面反映资产评估行业发展情况和发展成果,中国资产评估协会编制了《中国资产评估行业发展报告(2022年度)》,并于2023.印发。报告从行业管理、行业规模、资产评估机构、行业人才培养、行业准则建设及研究、行业监管、行业党建、行业价值与贡献等八个方面展现行业发展全貌,以生动形象的实务案例,突出体现行业服务国家建设的方方面面,为社会各界了解资产评估行业发展和行业贡献提供重要窗口,共计13.余字。本文摘编了其中的部分内容。

关键词：资产评估行业发展行业价值与贡献

A flexible framework for HMM based noise robust speech recognition using generalized parametric space polynomial regression

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Science china(Information Sciences) 2011年第12期54卷 2501-2511页

作者： CHENG Ning 1 , LIU XunYing 1,2 & WANG Lan 1 1 Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences/The Chinese University of Hong Kong, Hong Kong, china 2 Cambridge University Engineering Department, Cambridge CB2 1PZ, UK 1. Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences/The Chinese University of Hong Kong Hong Kong China2. Cambridge University Engineering Department Cambridge CB2 1PZ UK

Handling variable, non-stationary ambient noise is a challenging task for automatic speech recognition (ASR) systems. To address this issue, multi-style, noise condition independent (CI) model training using speech data collected in diverse noise environments, or uncertainty decoding techniques can be used. An alternative approach is to explicitly approximate the continuous trajectory of Gaussian component mean and variance parameters against the varying noise level, for example, using variable parameter hidden Markov model (VP-HMM). This paper investigates a more generalized form of variable parameter HMMs (GVP-HMM). In addition to Gaussian component means and variances, it can also provide a more compact trajectory modeling for tied linear transformations. An alternative noise condition dependent (CD) training algorithm is also proposed to handle the bias to training noise condition distribution. Consistent error rate gains were obtained over conventional VP-HMM mean and variance only trajectory modeling on a media vocabulary Mandarin Chinese in-car navigation command recognition task.

关键词： non-stationary noise generalized variable parameter HMM noise robust speech recognition

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乒乓球运动员的腱鞘炎及治疗

体育科学 1996年第5期16卷 67-70页

作者：厉彦虎国家体委训练局医务处北京100061

对中国乒乓球队在第43.世乒赛前两次封闭训练中的常见病之一—腱鞘炎做了系统总结。共总结出各种腱鞘炎19例,其中直板打法8人11例,横板打法4人8例,上肢13.占70％。并对各种打法与腱鞘炎的关系做了分析,特别指出:由于打法技术的需要,... 详细信息

对中国乒乓球队在第43.世乒赛前两次封闭训练中的常见病之一—腱鞘炎做了系统总结。共总结出各种腱鞘炎19例,其中直板打法8人11例,横板打法4人8例,上肢13.占70％。并对各种打法与腱鞘炎的关系做了分析,特别指出:由于打法技术的需要,手腕部近极限范围的动作和过度超量的训练,是手腕部腱鞘炎多发的直接原因。在治疗上,提出治疗腱鞘炎的四步按摩法和针刺针法。并根据经验提出治疗腱鞘炎的4点、注意事项。最后还列举了3.典型治疗病例。

关键词：腱鞘炎按摩针刺乒乓球

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美、日大学董事会的特点及对我国的启示

外国教育研究 2011年第9期38卷 50-54页

作者：董泽宇国家行政学院应急管理培训中心北京100089

在发达国家高等教育体系中,董事会制度是大学治理结构的中心环节,在筹集办学经费、选拔校长、监督裁决和沟通外界社会等方面扮演着关键角色,为大学的发展提供了强大动力。美国和日本的大学董事会在职责、成员构成、组织结构和运行机制... 详细信息

在发达国家高等教育体系中,董事会制度是大学治理结构的中心环节,在筹集办学经费、选拔校长、监督裁决和沟通外界社会等方面扮演着关键角色,为大学的发展提供了强大动力。美国和日本的大学董事会在职责、成员构成、组织结构和运行机制等方面存在较大差异。以美、日两国为代表的大学董事会制度在一定程度上可以纠正我国高校行政化倾向。

关键词：美国日本大学董事会大学治理监事制度

High Performance Frame Synchronization and Frequency Offset Estimation in OFDM Systems

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第九届全国青年通信学术会议

作者： Zhang Zhongshan Liu Yuanan Long Keping Center for Wireless Communications,BUPT, beijing, china Center for Wireless Communications,BUPT, beijing, china Special Research centre for Optical Internet & Wkeless Information Networks (COIWIN), CQUPT, ChongQing, china

＜正＞ A new joint frame synchronization and carrier frequency offset （CFO） estimation scheme is proposed in this paper. In the proposed scheme, frame synchronization and CFO acquisition are performed at the same time. The proposed frame synchronization estimator can work well under very low SNR condition, and it can guarantee negligible Miss Detection Probability of a training symbol;once a training symbol is detected correctly, there will be no positioning error. The acquisition range is as large as one half of the total signal bandwidth. Three CFO tracking estimators are proposed in this paper. All these tracking estimators are conditional unbiased, and the Cramer-Rao lower bound of the estimation variance error is met at high SNR. Optimized tracking estimators are also proposed for multipath channel. Comparison of the proposed scheme with Moose’s estimator by computer simulation illustrates the superior performance of the proposed scheme.

关键词： synchronization frequency offset estimation OFDM