井真成墓志文试补释

西北大学文博学院收藏的唐朝日本人墓志,作为重要的实物资料,由于字迹漫漶而保留信息不够完整。通过翻检大量的文献资料去考证残缺部分,还碑文原信息,是一项有意义的工作,在前贤释读的基础上予以补释,力图恢复原碑文。     

When Should a Firm Open its Source Code: A Strategic Analysis

Deciding to open the source code of a software product has advantages and disadvantages. The disadvantage is that the firm loses the revenue from the software. The advantage is that the users' network can contribute to the quality of the software code, which increases the demand for the software and for a complementary product. Demand for the complementary product also goes up, because demand for a product increases when the price of its complement decreases, and under open source, the price of the software product drops down to zero. This paper examines the strategic interactions at work here, within a duopoly framework, and tries to determine the circumstances under which it is optimal for a firm to open its code. We find that firms open the source code when there is a competitive software‐product market, a less competitive complementary‐product market, and when the complementary product is of high quality. Furthermore, it is more profitable for the firm to open the source code if its competitor also does so. When this happens the incentive to open the code can even be higher than in a monopoly situation. More intense competition induces symmetric equilibria in which both firms choose the same strategy.     

The exponentiated exponential–geometric distribution: a distribution with decreasing,increasing and unimodal failure rate

In this paper, we proposed a new family of distributions namely exponentiated exponential–geometric (E2G) distribution. The E2G distribution is a straightforwardly generalization of the exponential–geometric (EG) distribution proposed by Adamidis and Loukas [A lifetime distribution with decreasing failure rate, Statist. Probab. Lett. 39 (1998), pp. 35–42], which accommodates increasing, decreasing and unimodal hazard functions. It arises on a latent competing risk scenarios, where the lifetime associated with a particular risk is not observable but only the minimum lifetime value among all risks. The properties of the proposed distribution are discussed, including a formal proof of its probability density function and explicit algebraic formulas for its survival and hazard functions, moments, rth moment of the ith order statistic, mean residual lifetime and modal value. Maximum-likelihood inference is implemented straightforwardly. From a mis-specification simulation study performed in order to assess the extent of the mis-specification errors when testing the EG distribution against the E2G, and we observed that it is usually possible to discriminate between both distributions even for moderate samples with presence of censoring. The practical importance of the new distribution was demonstrated in three applications where we compare the E2G distribution with several lifetime distributions.     

音乐与建筑的通感效应及互补性

从历史和艺术的角度去看音乐与建筑,它们之间存在着密切的关系,这种关系可以使音乐与建筑之间产生 潜在的通感效应与互补作用。充分利用这两种不同学科间的互补作用,可以帮助对方达到更加理想的层次,产生 出意想不到的效果。     

论高校图书馆的辅助性教育功能

论述了高校图书馆在大学生知识领域的拓展:丰富全面的文献资料在拓展学生知识领域方面不受学科限制,有助于丰富学生的感性知识;为大学生提供了多种能力的培养与训练;在情感的陶冶等方面所起的对学科课程具有补偿性质的教育作用:图书馆通过积极向上的精神文化环境引导大学生的情感与道德感,陶冶大学生的情操。     

中阿经贸优势互补与我中西部引资策略

新中国成立后，中阿经贸得到稳步发展。我国新疆、甘肃、宁夏等西部地区在许多方面与阿拉伯地区有相似之处，经贸合作前景广阔，进入21世纪。中国应加强双边合作、采取以质取胜战略、实行灵活多变和有针对性的贸易方式、鼓励双向投资及充分发挥中阿经贸的互补性等措施，使中阿经贸更上一层楼。     

浅谈纸质文件与电子文件在档案管理中的互补性

阐述了纸质文件与电子文件在原始性、真实性、完整性的差异,分析两者了在法律层面上效用以及在信息安全与保密方面存在的差异和风险性。针对纸质文件与电子文件在档案管理中存在的一些短板现象,探讨了进行互补的方法以及应采取的对策。     

质量差异化与产品互补型企业兼并问题

从差异化角度提出带有质量参数和消费者对产品质量偏好参数的产品需求函数,分析 了产品互补企业通过兼并提高互补产品组合质量激发市场需求来提高企业利润的兼并动因. 分析和结论可以较好地解释当今兼并浪潮中的产品互补企业的兼并.     

奥运精神与东方体育文化的弘扬

本文从东、西方体育文化的异同、互补入手,探讨东方体育文化的内涵和实质,以及它在现代社会中的流变与发展,认为应以2008年北京奥运会为契机,弘扬东方体育文化和人文奥运的理念。     

On Sampling with Prescribed Second‐order Inclusion Probabilities

Abstract. Methods to perform fixed size sampling with prescribed second‐order inclusion probabilities are presented. The focus is on a conditional Poisson design of order 2, a CP(2) design. It is an exponential design of quadratic type and it is carefully studied. In particular, methods to find the suitable values of the parameters and methods to sample are described. Small examples illustrate.