基于路径可靠性的区域运输网络模型及算法

通过对经典运输问题在实际规模网络中进行扩展,建立了基于路径可靠性的区域运输网络运量分布模型。通过引入路径运输费用协方差矩阵,并进行类似金融网络中交易风险最小化的处理,建立明确的数值型最优化模型。在将最优化模型转化为等价的变分不等式后,充分利用运输网络的自身特征,提出了两阶段化的投影算法。新算法的投影算子具有明确的表达式,因此简单易行。通过一个算例,最终解的运量分布模式唯一性和算法的有效性得到了验证。     

企业劳动投入产出表编制方法探索

本文针对目前企业实物型投入产出表和价值型投入产出表只能主要反映产品生产在劳动对象方面的部门间技术经济联系,而对劳动力消耗在部门间的联系和运动过程只作了部分的不完整的反映的缺陷,提出了一种以企业价值型投入产出表为基础的编制企业劳动投入产出表的方法,并指出了编制企业劳动投入产出表的意义.     

作品元素名称在先权益保护研究——以商标确权为视角

作品名称及作品中诸如角色、场景道具和章节情节等元素的名称因不符合独创性要求而无法受《著作权法》保护,但一些知名作品元素名称因其具有的"促销力"能使消费者"移情"于相关衍生商品或服务而具有很大经济价值.如何对作品元素名称的商业化利益进行在先权益保护一直是商标确权司法实践中颇有争议的问题.构建"商品化权(益)"赋权模式因正当性基础缺失而不宜采用,而以《反不正当竞争法》保护的权益为基础认定在先权益的保护模式能在现有法律框架内更圆融地解决问题.从法律适用的角度,分别从类型化保护路径建构和具体要件认定标准完善两方面就在先作品元素名称的商标确权保护提出具体建议.     

MATLAB概述及在解单调变分不等式中的应用

本文综述了Matlab的基本命令及Matlab的特性,并结合数学实验,说明了Matlab在数学实验中的应用。最后,采用超梯度Mann迭代算法,用Matlab编程计算单调变分不等式问题的解。     

应用型本科计算机专业培养方案的制定策略与实施

首先分析了新升本科院校计算机专业在学生、师资、专业、就业形势等方面面临的挑战,从而提出了计算机专业人才培养方案的制定原则及其基本思想。并具体阐述了人才培养方案的基本内容,以及为实施人才培养方案应在师资队伍能力的培养、课程建设、教学内容的研讨、注重产学结合的研究、注重学生实践技能的培养等方面所做的保障。     

农药缓释剂的研究

论述了缓释农药所具有的优点和功能,对几种常见的缓释剂型的制备方法和特点作了着重介绍,并分析和预测了农药缓释剂的应用前景和发展方向。     

Regime switching in stochastic models of commodity prices: An application to an optimal tree harvesting problem

This paper investigates whether a regime switching model of stochastic lumber prices is better for the analysis of optimal harvesting problems in forestry than a more traditional single regime model. Prices of lumber derivatives are used to calibrate a regime switching model, with each of two regimes characterized by a different mean reverting process. A single regime, mean reverting process is also calibrated. The value of a representative stand of trees and optimal harvesting prices are determined by specifying a Hamilton-Jacobi-Bellman Variational Inequality, which is solved for both pricing models using a implicit finite difference approach. The regime switching model is found to more closely match the behavior of futures prices than the single regime model. In addition, analysis of a tree harvesting problem indicates significant differences in terms of land value and optimal harvest thresholds between the regime switching and single regime models.     

交易费用、制度变迁与会计准则

利用交易费用理论对会计准则产生的原因进行了分析,在此基础上阐述了会计准则在资本市场上的功能与作用。同时,从经济学的角度,对会计准则的制定模式和会计国际化等相关问题进行了探讨。     

一类含有Sobolev-Hardy临界指数的边界奇异椭圆方程正解的存在性

在本文中,我们探讨了一类含有Sobolev-Hardy临界指数的半线性椭圆方程正解的存在性,该问题具有边界奇异性(0∈Ω)。利用变分法和极大值原理证明了该问题正解的存在性,推广了已有的结果。     

Supply Chain Networks and Electronic Commerce: A Theoretical Perspective

In this paper, we develop a framework for the formulation, analysis, and computation of solutions to supply chain network problems in the presence of electronic commerce. Specifically, we consider manufacturers who are involved in the production of a homogeneous product and can now sell and have delivered the product not only to retailers but also directly to consumers. In addition, the manufacturers can transact with the retailers electronically. We assume that both the manufacturers and the retailers seek to maximize their profits, whereas the consumers take both the prices charged by the retailers and the manufacturers, along with the associated transaction costs, in making their consumption decisions. We identify the network structure of the problem, derive the equilibrium conditions, and establish the finite-dimensional variational inequality formulation. We then utilize variational inequality theory to obtain qualitative properties of the equilibrium pattern. In addition, we propose a continuous time adjustment process for the study of the disequilibrium dynamics and establish that the set of stationary points of the resulting projected dynamical system coincides with the set of solutions of the variational inequality problem. Finally, we apply an algorithm for the determination of equilibrium prices and product shipments in several supply chain examples. This paper synthesizes Business-to-Consumer (B2C) and Business-to-Business (B2B) decision-making in a supply chain context within the same framework.