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论基因工程化食品安全性 被引量:1
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作者 李金琦 《吉林粮食高等专科学校学报》 2001年第2期4-10,共7页
基因工程化食品安全性在我国还是个新论题。文中从生物体内细胞的基因所含有的控制信息多重性和复杂性的角度,论述对控制信息结构及作用的困难性和局限性,论证了基因重组引起遗传基因变异的可能性,并通过实例,进一步证实遗传基因变... 基因工程化食品安全性在我国还是个新论题。文中从生物体内细胞的基因所含有的控制信息多重性和复杂性的角度,论述对控制信息结构及作用的困难性和局限性,论证了基因重组引起遗传基因变异的可能性,并通过实例,进一步证实遗传基因变异及控制给人类带来的危害。启发人们对基因工程化食品安全性加以关注。 展开更多
关键词 基因工程化食品安全性 理论研究 基因变异 控制信息结构
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试论我国新闻报道社会调控机制的建构
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作者 梁媛 吴高福 《湖南大学学报(社会科学版)》 2005年第4期120-124,共5页
针对我国新闻报道社会调控现状和存在的问题,从四个方面提出了全面建构的建议在调控主体上,构筑党政、社会团体、社会力量、媒体及自律性组织、司法部门等五方面相互配合的多元化机制;在调控对象上,全方位涵盖新闻报道相关因素;在调控... 针对我国新闻报道社会调控现状和存在的问题,从四个方面提出了全面建构的建议在调控主体上,构筑党政、社会团体、社会力量、媒体及自律性组织、司法部门等五方面相互配合的多元化机制;在调控对象上,全方位涵盖新闻报道相关因素;在调控目标上,既注重宏观的结构调整,又着眼于微观的质量控制;在调控途径上,各主体均需健全立体化的引导和控制机制。 展开更多
关键词 新闻报道 社会调控 信息结构控制 传播质量控制
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A Controller-Based Architecture for Information Centric Network Construction and Topology management 被引量:3
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作者 Zeinab Zali Massoud Reza Hashemi +2 位作者 Ilaria Cianci Alfredo Grieco Gennaro Boggia 《China Communications》 SCIE CSCD 2018年第7期131-145,共15页
Information-Centric Networking(ICN) has recently emerged as a result of the increased demand to access contents regardless of their location in the network services. This new approach facilitates content distribution ... Information-Centric Networking(ICN) has recently emerged as a result of the increased demand to access contents regardless of their location in the network services. This new approach facilitates content distribution as a service of the network with lower delay and higher security in comparison with the current IP network. Applying ICN in current IP infrastructure leads to major complexities. One approach to deploy ICN with less complexity is to integrate ICN with Software Defined Networking(SDN). The SDN controller manages the content distribution, caching, and routing based on the users' requests. In this paper, we extend these context by addressing the ICN topology management problem over the SDN network to achieve an improved user experience as well as network performance. In particular, a centralized controller is designed to construct and manage the ICN overlay. Experimental results indicate that this adopted topology management strategy achieves high performance, in terms of low failure in interest satisfaction and reduced download time compared to a plain ICN. 展开更多
关键词 ICN SDN controller topology management overlay networks
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网络的划分(区隔)和安全服务与管理(CASSMnet)
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《军民两用技术与产品》 2003年第5期46-46,共1页
关键词 公共操作图 多域管理安全 信息结构控制 网络信息服务 网络划分 安全服务与管理
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The Empirical Research on Family Ownership and Earning Quality in China
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作者 Wang Na 《Journal of Modern Accounting and Auditing》 2012年第12期1798-1803,共6页
Corporate governance takes an important role in affecting the quality of accounting information. Since the ownership structure determines the method and the level of the corporate governance and the right of control, ... Corporate governance takes an important role in affecting the quality of accounting information. Since the ownership structure determines the method and the level of the corporate governance and the right of control, supervision, and the benefit, it can decide the quality of information and affect the earning quality. This paper examines if the ownership concentration affects the earning quality in family-owned companies in China. Using the data of 298 publicly-traded corporations in China, this paper finds that the controlling shareholders are associated with low earning quality and that the separation of control rights and cash flow rights is negatively associated with the earning quality of family ownership. 展开更多
关键词 family ownership earning quality controlling shareholders
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Selective Mono-Ozonolysis of a Cyclic 1,5,9-Cyclododecatrien
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作者 Hussein Habeeb Mustafa Noorhan All Chelebi 《Journal of Environmental Science and Engineering(A)》 2015年第9期474-483,共10页
Some unsaturated compounds with the required (Z,Z)-double bonds configuration are synthesized through controlled ozonolysis process of 1,5,9-cyclododecatriene by determining the necessary amount of ozone passing thr... Some unsaturated compounds with the required (Z,Z)-double bonds configuration are synthesized through controlled ozonolysis process of 1,5,9-cyclododecatriene by determining the necessary amount of ozone passing through to selectively guarantee the breakage of a double bond while leaving other two bonds as (Z,Z). The products were diagnosed by using NMR spectrum, infrared (IR) and mass spectrometer techniques. It is concluded that these products could widely be used in the synthesis of insect pheromones instead of insecticides and as useful intermediate compounds in many chemical reactions. 展开更多
关键词 OZONOLYSIS cyclododecatriene ALKENES pheromone synthesis.
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