GROUP-BUYING ONLINE AUCTION AND OPTIMAL INVENTORY POLICY IN UNCERTAIN MARKET

In this paper we consider a group-buying online auction (GBA) model for a monopolistic manufacturer selling novel products in the uncertain market. Firstly, we introduce the bidder's dominant strategy, after which we optimize the GBA price curve and the production volume together. Finally, we compare the GBA with the traditional posted pricing mechanism and find that the GBA is highly probable to be advantageous over the posted pricing mechanism in some appropriate market environments.     

The DY Conjugate Gradient Method with Armijo-type Line Searches

Two Armijo-type line searches are proposed in this paper for nonlinear conjugate gradient methods. The two Armijo-type line searches are shown to guarantee the global convergence of the DY method for the unconstrained minimization of nonconvex differentiable functions. Further, if the function is strictly convex, the two Armijo-type line searches and another Armijo-type line search are also shown to guarantee the convergence of the DY method.     

Cn上的分式线性变换群与M(o)bius变换群

首先引进C^n上的Moebius变换群CM(C^n)并给出其元素的一般形式。再研究Moebius变换的不动点性质．最后比较C^n上的Moebius变换群与C^n上的分式线性变换群的关系．     

结构型E-V线性模型中参数估计的若干结果

由于E-V线性模型的复杂性,通常的最小二乘估计等在这种模型中一般不是相合的。本文在结构型简单线性模型中,利用矩方法与秩方法建立了若干估计量,并且论证了这些估计量的相合性与渐近正态性,报告了主要结果。     

犯罪构成模式探析

在法制文明的国度，刑法作为一种价值工具是认定犯罪的唯一根据。立法者决定哪些行为属于犯罪并规定于法条，无不依照一定的价值观，我们常言的社会危害性亦即对价值目标的破坏或威胁。价值观的演化和相异，决定了行为的犯罪属性的变迁和差别。但司法者认定现实生活中大量的犯罪根本不能从抽象的价值观下的社会危害性入手，而只能靠已经包含社会危害性的刑法条文，这就是罪刑法定。如果司法者认定犯罪的程式中仍然包含了大量立法者的思维，无疑会给司法者以不可避免的误导，从而有害于人权保障，这样，罪刑法定就大打折扣。因此以司法意义上的犯罪概念去指导和构建犯罪构成理论将有助于廓清司法者的认识误区，真正体现刑法的人权保障和罪刑法定精神。     

多学科视角下的信任研究

信任研究是时下的一个热点问题。本通过大量的献检索，从社会学及其他学科角度对信任进行了综述，梳理了信任研究的脉络。     

对日语精读课程教学的一点思考

本文以探讨日语的生动性教学为出发点,将情景教学法,对话合作教学法运用到实际教学过程中,从而有效的完成教学过程,达到教学目的。     

Automatic Defect Detection in X-Ray Images Using Image Data Fusion

Introduction A welded structure must be inspected to guarantee that the weld quality meets the design requirements to as- sure safety and reliability. However, X-ray image analyses and defect recognition are very complex. Most difficulties lie in finding …     

A Novel Multi-Level Trust Algorithm for Mobile Ad Hoc Networks

Firstly, a multilevel trust algorithm for MANET （mobile ad hoe networks） is presented in this paper and the trust level is defined as a three-tuple type in this multilevel trust algorithm. The paper introduces the multilevel trust into MANET, thereby controlling restricted classified information flows among nodes that have different trust levels. Secondly, the infrastructure of MANET that suit to our multi-level trust is presented, Some conclusions are given at lastly.