钢轨磨耗数据检测采集分析处理系统研制及应用

论述了研制钢轨磨耗数据检测采集分析处理系统的必要性、思路与原理,着重介绍了该系统的研制方案、系统性能及现场应用情况。     

Remote collaborative pseudo-dynamic testing system based on acquisition board control

In this paper, NetSLab network platform for remote collaborative pseudo-dynamic testing, which was developed recently by a research group led by the Hunan University, is presented. Aiming at MTS system which is widely used in structural testing, the control method with acquisition board was investigated in this study to realize the communication interface between NetSLab and MTS system, and open up the remote collaborative pseudo-dynamic testing system. Using the developed testing system, a collaborative pseudo-dynamic testing on LAN was carried out successfully. The result manifests that the data transmission and collaborative control can be implemented accurately between NetSLab and MTS system, so that the usability of the testing system is validated.     

政府补贴下具风险规避的绿色供应链决策及协调

在绿色供应链中同时考虑政府绿色补贴和成员风险规避特性,分别建立了分散决策和集中决策模型。通过对模型求解分析,研究发现制造商的风险规避特性会对绿色供应链的发展产生不利影响,但政府补贴政策的实施能够有效减弱该负效应;零售商越害怕风险反而越有利于产品绿色度的提升;政府补贴比例和成员风险规避度均会影响成员决策变量值和效用值,且二者影响强度不同;政府补贴政策的激励可减弱成员风险规避特性对自身效用的消极作用,同时促使供应链整体效用和社会福利提高到高于成员的风险中性情形。通过对比3种契约对于绿色供应链系统的协调过程,得出收益共享—成本共担契约,相较单一的传统契约协调效果更佳,并通过数值仿真进行了验证。     

泛在网络环境下高校信息资源服务模式研究

主要对泛在网络环境下高校信息资源服务模式进行研究,以高校信息资源共享为切入点,分析了高校信息资源融合开放转型建设的基本框架、基本设想及其基本保障,进而为教育服务供给模式的升级和教育治理水平的提高提供参考.     

淮安高校联合体文献资源共享研究

建立图书馆联盟是提高区域内图书馆文献资源共享水平最有效的方法之一。分析了淮安地区区域图书馆联盟——淮安高校图书馆联合体文献资源共享的优势和存在的问题,提出了加强淮安高校联合体文献资源共享的对策,并对其未来发展进行了展望。     

关于两类m-增生算子族公共零点的邻近点算法

对于实Hilbert空间中两类m-增生有限算子族,给出了寻求它们公共零点的显式迭代算法,并进一步证明了显式迭代序列强收敛于这两类m-增生算子族的唯一公共零点.     

珊溪电厂泄洪洞事故检修闸门漏水原因分析及处理方案

介绍了珊溪电厂泄洪洞事故检修闸门在高水头使用过程中出现的漏水情况,通过试验对各种可能因素进行了分析,最终确定漏水原因,并制定了处理方案。     

分担值与正规族

研究了亚纯函数族的正规性,对于陈怀惠和方明亮的正规定则在n=2不成立的基础上,从分担值的角度重新作了讨论,获得了一个正规定则.     

Multipartite matroids and secret sharing

In a secret-sharing scheme, a secret value is distributed among a set of participants by giving each participant a share. The re-quirement is that only predefined subsets of participants can recover the secret from their shares. The family of the predefined authorized subsets is called the access structure. An 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 secrets. Brickell and Davenport proved that ideal access structures are induced by matroids. Subsequently, ideal access structures and access structures induced by matroids have received a lot of attention. Seymour gave the first example of an access structure induced by a matroid namely the Vamos matroid, that is non-ideal. Since 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 ideal. Furthermore, we give a new proof that all access structures related to bipartite and tripartite matroids coincide with the ideal ones. Our results give new contributions to the open problem, that is, which matroids induce ideal access structures.     

档案信息化建设的问题与对策探析

分析了我国目前档案信息化建设中存在的一些问题,并针对这些问题提出了若干行之有效的解决对策,以促进档案信息化建设的发展。