城市住宅小区的图书馆建设

随着我国城市住宅小区的发展，图书馆的建设已成为小区文化建设的重要组成部分。文章就如何在城市住宅小区中普及图书馆提出了一些建议。     

Fuzzy数学在分层模拟电路故障定位中的应用

本文提出了应用模糊数学进行模拟电路故障定位的一种方法，并运用实例验证此方法是实际可行的。     

集中建站最佳站址的充要条件

本文给出了集中建站最佳站址的充要条件,根据这个充要条件还提出了关于最佳点的若干判别定理。     

The impact of W. K. Röntgen's discovery on the use of internalizable sources of ionizing energy in diagnostic and therapeutic nuclear medicine

The early history of cathode rays, X-rays and a third kind of natural radiation from several minerals and atomic fission is described. In this way the fundamental concept of radioactivity, laws of decay and atomic models were developed. With artificial radioactive isotopes, new tailored radiopharmaceuticals could be introduced into metabolic research, medical diagnostics and therapy. Von Hevesy's concept of the dynamic state of body constituents led to examination of the locations and movements of labelled atoms and molecules as a function of time. That was the birth of nucler medicine. The principles and value at the molecular level of several specific tracer studies in research and diagnostic or therapeutic use are explained. Typically, diagnostic tests with tracer agents are non-invasive and have low radiation exposure. Competing with other diagnostic and therapeutic modalities, nuclear medicine is a speciality in its own right. But there are moves to classify it as a subspecialization of other organ-oriented clinical disciplines. That is a misunderstanding of the radiologist's role and does not answer the question: What is the best way of woking for the patient? New horizons in diagnostic modalities, biochemistry, immunology, imaging and the use of immunogenic therapeutic agents demand a continuous cooperation within interdisciplinary teams. That is as necessary with radiologic departments, participating in changed organizational structures, as with other clinical departments.     

浅析居住建筑的发展方向

通过对现状的研究叙述，总结出现存居住建筑的几个特点，进而提出了居住建筑作为一种建筑观念，在满足一般居住功能的前提下向着多样化、个性化发展的发展方向及对设计师的要求。     

P2P对等点多播发现定位服务的实现

分析了P2P网络中对等点发现报务的定位模型，介绍了P2P对等点多播发现定位服务的实现技术，为P2P网络应用打下了良好的基础。     

矿井井筒位置设计方案的优化

本文在建立井田地面模型、矿床模型、经济数学模型的基础上,提出了在井田范围内搜索井筒位置可行方案,并对所有技术上可行的方案进行优选,得到了最佳方案的综合模型.     

RELATIVE FAILURE RATE AND ITS TEST

In this paper we develop scale and location invariant tests using U statistic forconstant relative failure rate against monotone relative failure rate.Monotone power andasymptotic normality of the test statistic are obtained.Some examples are presented,including tests for exponentiality.Weibull distribution and the two-sample problem.     

网络设计中集中器定位问题的神经网络解决方法

给出了用于解决网络设计中集中器定位问题的神经网络方法，这类容量受限的集中器定位问题是求最小总花费的NP完全问题，利用拉格朗日乘数法和惩罚函数构造神经网络动态系统的微分方程，采用专门的神经网络可以有效解决，模拟结果表明，这种神经网络方法有效可行，并能求出最优解或近似最优解。     

时变环境下的物流配送中心选址问题

配送中心选址是物流管理中的一个重要研究问题,受到广泛重视．一般选址问题所涉及的模型都是静态的,即沿一条路径行进时所需的成本（或时间）是与出发时间无关的常数．但在实际生活中,沿一条路径行进时所需的成本（或时间）是会随出发时间的变化而变化．讨论这类时变环境下的选址模型,给出模型的数学描述并提出一个求解的算法．