群组AHP排序的最小最大几何距离方法

对群组判断矩阵提出一种新的最小最大几何距离排序方法(MGDM)。鉴于不同专家所给判断矩阵质量上的差异,MGDM对群组判断矩阵进行不同程度的加权处理,并进行群组一致性检验。     

林农对林改政策需求优先序及其影响因素分析——基于江西省的调查数据

以江西省集体林权制度改革成效跟踪监测项目调研数据为基础,运用平均联结聚类分析方法,研究林农对林改政策需求的优先序,研究结果表明:林农对林改政策的第一层次需求为林业补贴政策,第二层次需求为林业科技服务政策,第三层次需求为林业金融服务政策,第四层次需求为规模经营的其他配套政策。在此基础上,运用多元Logistic模型分析林农对林改政策需求优先序的影响因素,并提出相关政策启示。     

A Spectral Method for a Nonpreemptive Priority BMAP/G/1 QUEUE

Abstract

In this paper we consider a nonpreemptive priority queue with two priority classes of customers. Customers arrive according to a batch Markovian arrival process (BMAP). In order to calculate the boundary vectors we propose a spectral method based on zeros of the determinant of a matrix function and the corresponding eigenvectors. It is proved that there are M zeros in a set Ω, where M is the size of the state space of the underlying Markov process. The zeros are calculated by the Durand-Kerner method, and the stationary joint probability of the numbers of customers of classes 1 and 2 at departures is derived by the inversion of the two-dimensional Fourier transform. For a numerical example, the stationary probability is calculated.     

The existence of waiting time moments for single server queues with mixed renewal and poisson inputs

The following queuing system is considered: Two independent recurrent input streams (streams 1 and 2) arrive at a server. It is assumed that stream 1 is of Poisson type. Three priority disciplines are studied in case that customers of type 1 have priority: head-of-the-line, preemptive-resume, and preemptive-repeat discipline. For all three cases, the limiting distribution function of actual waiting times of low-priority customers is considered, and conditions are given for the existence of moments related to these limiting distributions.     

Risk‐Cost‐Benefit Analysis for Transportation Corridors with Interval Uncertainties of Heterogeneous Data

Access management, which systematically limits opportunities for egress and ingress of vehicles to highway lanes, is critical to protect trillions of dollars of current investment in transportation. This article addresses allocating resources for access management with incomplete and partially relevant data on crash rates, travel speeds, and other factors. While access management can be effective to avoid crashes, reduce travel times, and increase route capacities, the literature suggests a need for performance metrics to guide investments in resource allocation across large corridor networks and several time horizons. In this article, we describe a quantitative decision model to support an access management program via risk‐cost‐benefit analysis under data uncertainties from diverse sources of data and expertise. The approach quantifies potential benefits, including safety improvement and travel time savings, and costs of access management through functional relationships of input parameters including crash rates, corridor access point densities, and traffic volumes. Parameter uncertainties, which vary across locales and experts, are addressed via numerical interval analyses. This approach is demonstrated at several geographic scales across 7,000 kilometers of highways in a geographic region and several subregions. The demonstration prioritizes route segments that would benefit from risk management, including (i) additional data or elicitation, (ii) right‐of‐way purchases, (iii) restriction or closing of access points, (iv) new alignments, (v) developer proffers, and (vi) etc. The approach ought to be of wide interest to analysts, planners, policymakers, and stakeholders who rely on heterogeneous data and expertise for risk management.     

论职务科技成果转化利益分配的约定优先原则

利益驱动是职务科技成果有效转化的关键因素之一,合理的利益分配需尊重当事人的意思自治,遵循约定优先原则。约定优先原则有利于厘清复杂的利益关系、符合私法意思自治的法理、能克服法律规定之不足。约定有效是约定优先原则适用的前提,对其效力判断主要依据合同法和劳动法的相关规定。职务科技成果转化利益分配的约定不受制于法定最低标准（除非为强制性标准);利益分配约定的合理性审查,应以形式审查为主。同时,基于雇佣双方地位不平等,应对约定优先原则加以限制,以平衡各方主体的利益诉求,促进职务科技成果转化。     

有优先级话音业务的PPRMA协议性能分析

研究了ＰＲＭＡ（分组预约多址协议）中话音业务具有多种优先级的情况,采用平衡点分析法（ＥＰＡ）推导了话音分组丢失率和平均延迟时间的计算式。给出的计算和仿真结果表明,ＰＲＭＡ可以支持ＶＢＲ语音和低速数据业务的综合传输,但当系统中有多种优先级别的语音终端时,系统容量存在门限效应。     

离婚损害赔偿制度与照顾无过错方原则之思考

现行婚姻法突破了1993年11月3日《最高人民法院关于人民法院审理离婚案件处理财产分割问题的若干 具体意见》中关于离婚时分割夫妻共同财产坚持照顾无过错方的原则的规定,在我国首次确立了离婚损害赔偿制度,加 大了惩罚过错方、抚慰受害人的力度,是我国婚姻家庭立法史上的重大进步。但由于现实生活的需要,离婚损害赔偿制 度并不能取代离婚时财产分割照顾无过错方的原则而使其作废,而是在已经实行离婚损害赔偿制度的前提下,“照顾”原 则同时继续适用,但“照顾”原则在法律层面应进一步完善。     

中国收入优先增长中的结构优化

在中国进入中等收入国家行列后,实施收入优先增长是避免中等收入陷阱和实现经济可持续发展的一个重要发展战略。这个战略既要从总量增长角度进行考虑,还要从结构优化方面进行分析,即中国的收入优先增长主要是应该通过工资性收入的增加来实现,还是应该通过提高财产性收入或经营性收入来实现。考察典型的高收入国家美国的居民收入结构,其长期运行规律和发展趋势应能对中国从中等收入国家迈向高收入国家提供某些参考和借鉴。从中国居民工资性收入、财产性收入和经营性收入的自身特征和运行规律来看,在中国实施收入优先增长的过程中,大幅度提高工资收入在短期是应该的,但难以作为长期举措。财产性收入增加是收入优先的重要组成部分,但不能放任财产性收入过度膨胀,而经营性收入的提高应该成为中国收入优先战略实施的重要举措。     

论股东优先购买权对股权转让协议效力的影响

股东向股东以外的人转让股权,要经过其他股东的同意,同时要受到股东优先购买权的限制。股东优先购买权在不同阶段具有不同的性质,其对股权转让协议的效力具有实质性的影响并对转让股东、其他股东和股东以外的受让人都具有决定性的意义。股东优先购买权平衡了经济秩序和经济效率以及有限责任公司的人合性和开放性之间的法益关系,在现代商法中具有极为重要的意义。