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81.
Advance results from the 1982 census of China are presented based on a 10 percent sample. Sections are included on age distribution, centenarians, marriage patterns, educational status, and the labor force. Several characteristics of China's population are described in this article, based on a 10% sampling tabulation of the production teams and resident groups of the whole country. Data are included for 100,380,000 people. The proportion of the population aged 0-14 is 33.60%, which marks a decline from figures in the 1964 census (40%). This decline is attributed to family planning and population control efforts. The median age is 22.91 years, which is 2.71 years older than that in the 1964 census. The % of the population aged 15-64 rose from 55.7% in 1964 to 61.5%. The dependency ratio dropped from 79.4% (1964) to 62.6%. There were 3,765 centenarians as of July, 1982; the overwhelming majority live in villages, and most (94.77%) are illiterate or semiliterate. The number of female centenarians is 2.4 times that of males. Marriages are comparatively stable in China. 63.6% of the population aged 15 and over are married, and .59% are divorced. The % of the population remaining single after age 50 is .21% for females, 2.97% for males. The average 1st marriage age is 22.80 years for females and 25.49 years for males. 60.35% of the people have had primary education or above; .44% are college graduates. In 1964, 33.58% of the population illiterate or semiliterate. At present, among people aged 12 and over, 31.90% are illiterate or semiliterate. The rural illiteracy rate is more than twice the urban rate. 51.94% of the total population is employed. Of these, 92.08% are engaged in manual labor. Males exceed females in all professions and occupations. The median age of the employed population is 30.84 years. The level of education among the employed is relatively low: 28.26% are illiterate or semiliterate, and 34.35% have had primary education only.  相似文献   
82.
Risk Modeling, Assessment, and Management of Lahar Flow Threat   总被引:1,自引:0,他引:1  
The 1991 eruption of Mount Pinatubo in the Philippines is considered one of the most violent and destructive volcanic activities in the 20th century. Lahar is the Indonesian term for volcanic ash, and lahar flows resulting from the massive amount of volcanic materials deposited on the mountain's slope posed continued post-eruption threats to the surrounding areas, destroying lives, homes, agricultural products, and infrastructures. Risks of lahar flows were identified immediately after the eruption, with scientific data provided by the Philippine Institute of Volcanology, the U.S. Geological Survey, and other research institutions. However, competing political, economic, and social agendas subordinated the importance of scientific information to policy making. Using systemic risk analysis and management, this article addresses the issues of multiple objectives and the effective integration of scientific techniques into the decision-making process. It provides a modeling framework for identifying, prioritizing, and evaluating policies for managing risk. The major considerations are: (1) applying a holistic approach to risk analysis through hierarchical holographic modeling, (2) applying statistical methods to gain insight into the problem of uncertainty in risk assessment, (3) using multiobjective trade-off analysis to address the issue of multiple decisionmakers and stakeholders in the decision-making process, (4) using the conditional expected value of extreme events to complement and supplement the expected value in quantifying risk, and (5) assessing the impacts of multistage decisions. Numerical examples based on ex post data are formulated to illustrate applications to various problems. The resulting framework from this study can serve as a general baseline model for assessing and managing risks of natural disasters, which the Philippines' lead agency-the National Disaster Coordinating Council (NDCC)-and other related organizations can use for their decision-making processes.  相似文献   
83.
Consider the problem of partitioning n nonnegative numbers into p parts, where part i can be assigned ni numbers with ni lying in a given range. The goal is to maximize a Schur convex function F whose ith argument is the sum of numbers assigned to part i. The shape of a partition is the vector consisting of the sizes of its parts, further, a shape (without referring to a particular partition) is a vector of nonnegative integers (n1,..., np) which sum to n. A partition is called size-consecutive if there is a ranking of the parts which is consistent with their sizes, and all elements in a higher-ranked part exceed all elements in the lower-ranked part. We demonstrate that one can restrict attention to size-consecutive partitions with shapes that are nonmajorized, we study these shapes, bound their numbers and develop algorithms to enumerate them. Our study extends the analysis of a previous paper by Hwang and Rothblum which discussed the above problem assuming the existence of a majorizing shape. This research is partially supported by ROC National Science grant NSC 92-2115-M-009-014.  相似文献   
84.
东方管理学的创建与发展:渊源、精髓与框架   总被引:1,自引:0,他引:1  
彭贺  苏宗伟 《管理学报》2006,3(1):12-18
东方管理学是扎根于中华文化,融合东西方管理精华的当代管理新理论。经30余年的探索,已形成了独具特色的体系结构。在简要概述东方管理学体系形成的3个阶段的基础上,阐述了东方管理理论的渊源,以及“以人为本、以德为先、人为为人”的精髓,并详尽地介绍了东方管理学的体系框架——学、为、治、行、和。  相似文献   
85.
为提高传动系统位置检测的精度和安全性以及减小系统首末端的位置偏差,提出了绝对式光电编码器和旋转变压器的双位置解算方案。基于高 速芯片TMS320F28377S设计了绝对式光电编码器和DSP的通信电路,运用SCI模块与光电编码器通信;设计了旋转变压器与DSP的接口电路,对旋转变压器的输出 信号进行160倍过采样并相敏整流;分别在传动系统首端和末端安装绝对式光电编码器和旋转变压器,位置解算结果相互验证,确保传动系统位置解算的正确性和 安全性。实验表明该方案能快速准确地实现位置的检测,提高传动系统的性能。  相似文献   
86.
针对微型断路器装配过程中存在生产效率低、一致性差等缺点,提出了基于PLC控制器的微型断路壳上料控制系统。课题组设计了上料控制系统的机械结构,介绍了上料机构的组成和连接方式;采用伺服电机实现上料机构的精确控制;设计了上料控制系统的硬件组成以及工作原理;采用以太网的通信方式提高数据的传输速率;设计了控制系统的上位机显示界面。控制系统运行结果表明,断路壳上料机运行稳定、结构简单、成本低,有效提高了整个装配生产线的装配效率。  相似文献   
87.
在全球制造业革命性变革的背景下,“中国制造2025”不仅为我国制造业转型升级提供了行动指南,也对职业教育人才培养规模、规格、质量提出了新诉求。但目前我国职业教育人才培养结构性失调,培养模式与制造业发展实践脱节,培养体系缺乏开放性等,与“中国制造2025”发展战略存在不适应之处。因此,职业教育要不断变革人才培养策略,优化人才培养结构,构建“制造业+”融合式人才培养模式,建立开放性职业教育人才培养体系,从而承担起建设制造业强国赋予的新使命。  相似文献   
88.
本文从费用最省的角度出发,建立了计算等温输油管线最优技术参数的数学模型,并给出了数学模型的求解方法。  相似文献   
89.
西方人类学对于"仪式"的研究,从早期的"神话—仪式"学派,到后来的功能主义学派、结构主义学派,再到象征主义学派,将仪式研究从原来视野相对狭窄的宗教神话领域逐步扩展到更为宏阔的社会生活领域。在此过程中,西方人类学仪式研究形成了一套较为完整的人类学仪式研究的知识谱系,完成了西方人类学仪式研究范式的现代性转换。  相似文献   
90.
利用2002—2014年全国31个省市的面板数据考察城市化、高等教育扩张对地区收入差距的影响.结果显示:从全国层面来看,城市化对缩小地区间收入差距具有显著的消极作用,当地区城市化水平提高时,地区收入差距扩大;高等教育扩张对缩小地区收入差距具有显著的正向作用.从不同地区结果来看,东部地区城市化水平普遍较高,对地区收入差距的影响并不显著,而高等教育扩张对地区收入差距具有显著的负向作用.中部地区的结果与东部地区的结果基本一致.相比于东中部地区,西部地区城市化水平较低,其水平的提高不利于地区间收入差距的缩小,而高等教育扩张的影响并不显著.最后从合理推进城市化和高等教育扩张两个角度提出四个政策性建议.  相似文献   
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