湿空气的图解法及图

本文提出了湿空气的图解法，导出了符合工程习惯的湿空气的计算式，绘制了湿空气的－温图，－压图与－湿图，并给出了算例。本文所提供的湿空气的图解法使湿空气的计算与湿空气其它参数的计算一样简便。     

Quality of life indicators: A preliminary investigation

Concern over the ‘quality of life’ in the United States seems to have increased proportionally with technological advancement and growth in material wealth. Growing public interest in social, economic, political and environmental conditions has led to the search for indicators which adequately reflect the overall ‘health’ of the nation and its citizens' well-being. This paper developed a systematic methodology for assessing social, economic, political, and environmental indicators to reflect the quality of life in the U.S. Nine indicators, including Individual Status, Individual Equality, Living Conditions, Agriculture, Technology, Economic Status, Education, Health and Welfare and State and Local Governments were compiled from more than 100 variables for 50 states and the District of Columbia. Based primarily on 1970 data, QOL indexes were generalized and the states were rated. Comparisons among similar studies were made and analyses among indicators were also performed.     

坐姿变化与中国人身心的解放--以宋人笔记为核心

汉魏之后,随着佛教的传入,西北民族甚至异域的风俗文化不断进入中原,对传统文化形成冲击.坐具的出现,影响了中国从用具到生活习性乃至伦理文化等诸方面,而生活习性的改变,解放了对腿部的压迫,从而又带来了环境卫生身体健康等遗传方面的优势.较之接受唐代文化的日本民族,中国人身高的变化,未尝不可归功于"胡床"的传入和接受.     

Basic indicators for identifying types of age structure]

Problems of population aging in China are considered in the light of the adoption of a policy of one child per family. The possibility of inadequate labor force resources and a ratio of elderly population too great for those of working age is considered. Methods of estimating population age structure are presented, and the economic problems of both aging and youthful populations are discussed.     

液体中热晕的矩阵分析及有关新现象

对液体中热晕现象从新的角度，即矩阵光学的方法进行了处理，以热透镜为模型，建立了热晕效应的等效焦距形成发展过程的数学表达式。同时进行了部分实验以验证理论结果。成功地观察到了热晕形成发展的全部动态过程，得到了与理论计算基本一致的实验数据。在实验中，同时观测到了一些周期性的跳动现象，给出了定性的物理解释。     

The size of the nonstationary component and its effect on tests for unit roots

We consider a nonstationary time series that is composed of a stationary and nonstationary component. Monte Carlo experiments show that common unit root tests have probabilities of committing a type I error that significantly exceed the level of significance. We find that the probabilities vary according to the relative size of the nonstationary component.     

成角透视动态简捷作图方法及步骤

本文以运动的观点和极限的方法来研究变化的形体和图形,提出一种比传统作图法更科学简便的作图方法,可快速而准确地画出建筑渲染图透视。     

一位城市经济学家临终前的呐喊

为悼念中国城市经济学会副会长、学科建设专家委员会主任,著名城市经济学专家饶会林教授的不幸逝世,东北财经大学于2006年7月8日在大连召开"饶会林学术思想追忆会",我怀着沉痛的心情参加了追忆会.我同饶会林教授相交20多年,没想到他这么快就走了.     

大学生责任心理的调查与思考

通过调查当代大学生的责任心理发现,大学生的责任意识与责任行为呈现出"知易行难"的典型特点,本文试图从教育、社会和大学生自身三方面探讨其产生的原因,并提出教育对策.     

Gambling Reputation: Repeated Bargaining With Outside Options

We study the role of incomplete information and outside options in determining bargaining postures and surplus division in repeated bargaining between a long‐run player and a sequence of short‐run players. The outside option is not only a disagreement point, but reveals information privately held by the long‐run player. In equilibrium, the uninformed short‐run players' offers do not always respond to changes in reputation and the informed long‐run player's payoffs are discontinuous. The long‐run player invokes inefficient random outside options repeatedly to build reputation to a level where the subsequent short‐run players succumb to his extraction of a larger payoff, but he also runs the risk of losing reputation and relinquishing bargaining power. We investigate equilibrium properties when the discount factor goes to 1 and when the informativeness of outside options diffuses. In both cases, bargaining outcomes become more inefficient and the limit reputation‐building probabilities are interior.