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Multipartite matroids and secret sharing

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Chinese Science Bulletin 2010年第29期55卷 3261-3266页

作者： HSU ChingFang TANG XueMing CHENG Qi xiao haijun College of Computer Science & Technology Huazhong University of Science and Technology Wuhan 430074 China Institute of Wuhan Digital Engineering Wuhan 430074 China School of Mathematics & Physics China University ofGeosciences Wuhan 430074 China

In a secret-sharing scheme,a secret value is distributed among a set of participants by giving each participant a *** requirement is that only predefined subsets of participants can recover the secret from their *** family of the predefined authorized subsets is called the access *** access structure is ideal if there exists a secret-sharing scheme realizing it in which the shares have optimal length,that is,in which the shares are taken from the same domain as the *** and Davenport proved that ideal access structures are induced by ***,ideal access structures and access structures induced by matroids have received a lot of *** gave the first example of an access structure induced by a matroid namely the Vamos matroid,that is *** every matroid is multipartite and has the associated discrete polymatroid,in this paper,by dealing with the rank functions of discrete polymatroids,we obtain a sufficient condition for a multipartite access structure to be ***,we give a new proof that all access structures related to bipartite and tripartite matroids coincide with the ideal *** results give new contributions to the open problem,that is,which matroids induce ideal access structures.

关键词：秘密共享方案拟阵访问结构接入结构最佳长度充分条件公开问题参与者

Object use in insects

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Insect Science 2024年第4期31卷 1001-1014页

作者： Chao Wen Cai Wang xiaoli Guo Hongyu Li haijun xiao Junbao Wen Shikui Dong School of Grassland Science Beijing Forestry UniversityBeijingChina College of Forestry and Landscape Architecture South China Agricultural UniversityGuangzhouChina Beijing Key Laboratory for Forest Pest Control Beijing Forestry UniversityBeijingChina

Insects are the most diverse group of organisms in the animal kingdom,and some species exhibit complex social *** research on insect object use is still in its early stages,insects have already been shown to display rich object-use *** review focuses on patterns and behavioral flexibility in insect object-use behavior,and the role of cultural evolution in the development of object-use *** use in insects is not widespread but has been documented in a diverse set of *** insects can use objects flexibly and display various object-use *** mammals and birds,insects use objects in diverse activities,including foraging,predator defense,courtship,and ***,pre-existing manipulative behaviors,and anatomical structure affect innovations in object *** addition,learning and imitation are the main mechanisms underlying the spread of object-use behaviors within *** that insects are one of the major animal groups engaging in object use,studies of insect object use could provide general insights into object use in the animal kingdom.

关键词： cognition evolution insects learning object use

Development of Sightseeing Agricultural Landscapes Based on Bashu Culture and Red Culture Elements

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Journal of Landscape Research 2019年第5期11卷 138-140页

作者： ZHANG Shuqin xiao haijun Guang’an Vocational & Technical College

The development of culture is closely related to politics and *** is some unique creativity in national *** a large extent,cultural appeal and cohesion can improve the sightseeing agricultural landscape in Bashu ***,the unique “red culture” of Chinese culture is a very popular representative part of Bashu sightseeing agriculture ***,when Chinese culture is vigorously promoted,Bashu culture is affected by the Going Global *** tourism and red culture are beneficial to the rapid development of the sightseeing agricultural landscape in Bashu,which promotes the continuous construction and development of the economic and cultural development in Bashu *** on this,we analyzed Bashu culture and the red culture respectively,and expounded their influence on the sightseeing agricultural landscape in Bashu area and its future development.

关键词： Bashu culture Red culture Sightseeing agricultural landscape

Intrusion Detection in Ad-hoc Networks

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通讯和计算机（中英文版） 2006年第1期3卷 42-47页

作者： haijun xiao Fan Hong Hongwei Li Information Security Lab College of Computer Science ＆ Technology Huazhong University of Science ＆ Technology Wuhan 430074 China Department of Mathematics and Physics China University of Geosciences Wuhan 430074 China

CONSENSUS OF THE SECOND-ORDER MULTI-AGENT SYSTEMS WITH AN ACTIVE LEADER AND COUPLING TIME DELAY

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Acta Mathematica Scientia 2014年第2期34卷 453-465页

作者：郭万里肖海军陈士华 School of Mathematics and Physics China University of Geosciences School of Mathematics and Statistics Wuhan University

This article investigates the consensus problem of the second-order multi-agent systems with an active leader and coupling time delay in direct graph. One decentralized state control rule is constructed for each agent to track the active leader and it is proved that the proposed control scheme enables the consensus to be obtained when the adjacency topology is fixed/switched. Simulation results show effectiveness of the proposed theoretical analysis.

关键词： Consensus problem second-order multi-agent system active leader couplingtime delay

政府董事:国有企业内部治理结构重建的切入点

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政法论坛 2017年第1期35卷 173-181页

作者：肖海军湖南大学法学院湖南大学商事法与投资法研究中心

在国家直接投资情形下,政府董事作为国家股权代表人,由政府直接委任到公司制国家出资企业董事会中任职,为典型的股东董事和内部董事。通过统一政府董事委任主体、控制委任权限、规范委任流程,由国务院或地方政府分别对中央、地方国家出... 详细信息

在国家直接投资情形下,政府董事作为国家股权代表人,由政府直接委任到公司制国家出资企业董事会中任职,为典型的股东董事和内部董事。通过统一政府董事委任主体、控制委任权限、规范委任流程,由国务院或地方政府分别对中央、地方国家出资企业的政府董事进行统一任命或分级委派,并把其分设为政府非执行董事和政府执行董事两类,使其相互之间既有适当的分工、配合,又能有一定程度的监督、制约。如此,公司制国家出资企业的内部治理结构才能既合乎资本权源逻辑、又可适应现代企业竞争而规范地建立。

关键词：国家出资企业政府董事国家股权代表董事会

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论营业权入宪——比较宪法视野下的营业权

法律科学（西北政法大学学报） 2005年第2期23卷 9-19页

作者：肖海军湖南大学法学院湖南长沙410079

营业权是主体基于平等市场主体资格自由地、独立地从事以营利为目的的营业活动的权利。纵观各国宪法 ,在营业权的表达方式上 ,有自由权吸收方式、经济与财产自由包含方式、职业选择自由概括方式和营业自由表达方式等不同模式 ,在具体的... 详细信息

营业权是主体基于平等市场主体资格自由地、独立地从事以营利为目的的营业活动的权利。纵观各国宪法 ,在营业权的表达方式上 ,有自由权吸收方式、经济与财产自由包含方式、职业选择自由概括方式和营业自由表达方式等不同模式 ,在具体的立法体例上有宪法序言或总则宣示式、经济政策性原则条款式、公民基本权利条款列举式、总则宣示与公民权利列举相结合的模式等不同范式。因此 ,尽快把“营业权”(或“营业自由”)或视为公民的基本权利 ,或视为一项基本国策 ,或作为一项基本的经济原则 ,载入我国宪法 ,是今后宪法修改和人权保障的重要课题。

关键词：营业权宪法中国人权公民权利

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商事代理立法模式的比较与选择

比较法研究 2006年第1期20卷 60-71页

作者：肖海军湖南大学法学院

与民事代理的补充性、临时性不同，商事代理具有主导性、经常性，特别由于营业行为的复杂性、职业性以及商法人、商合伙组织在商事活动中的主导地位，使营业行为无不以商事代理行为的某种具体形态表现出来，商事代理行为可以说贯穿商主... 详细信息

与民事代理的补充性、临时性不同，商事代理具有主导性、经常性，特别由于营业行为的复杂性、职业性以及商法人、商合伙组织在商事活动中的主导地位，使营业行为无不以商事代理行为的某种具体形态表现出来，商事代理行为可以说贯穿商主体营业活动的每一个环节。有学者认为商事买卖是商法的骨干，商事代理是商法的肢体.商事代理行为所具有的这种必要性、主导性和经常性特点，使其在整个商事制度中具有不可替代的价值，因而完善商事代理制度十分必要。

关键词：商事代理制度立法模式代理行为主导性民事代理商事活动合伙组织形态表现补充性临时性

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信托投资机构信托义务的释义与认定

社会科学 2009年第2期 84-92页

作者：肖海军湖南大学法学院教授湖南长沙410082

信托投资机构信托义务主要内容包括善良管理义务、忠实运营义务、谨慎注意义务等多个方面,由于现行法律规范的概括性和模糊性,加上诸多地方空白条款存在的现实性,因之在商事实务和司法实践中,对其法律释义和认定标准也有了不确定性,可见... 详细信息

信托投资机构信托义务主要内容包括善良管理义务、忠实运营义务、谨慎注意义务等多个方面,由于现行法律规范的概括性和模糊性,加上诸多地方空白条款存在的现实性,因之在商事实务和司法实践中,对其法律释义和认定标准也有了不确定性,可见,信托投资机构信托义务的具体化和可识别性应列入我国未来信托立法、信托投资立法的重点。

关键词：信托投资机构信托义务善良管理忠实运营谨慎注意