罗伯特*弗罗斯特《收落叶》之主题申说

通过结构-解构诗论对文本作出详细解读后认为,<收落叶>的主题是对"美国梦"的批判,而非一般意义上对田园劳动的吟唱.     

Fire scheduling for planned artillery attack operations under time-dependent destruction probabilities

In this paper, we consider the fire scheduling problem (FSP) for field artillery, which is the problem of scheduling operations of firing at given targets with a given set of weapons. We consider a situation in which the number of available weapons is smaller than the number of targets, the targets are assigned to the weapons already, and targets may move and hence the probability that a target is destroyed by a firing attack decreases as time passes. We present a branch and bound algorithm for the FSP with the objective of minimizing total threat of the targets, which is expressed as a function of the destruction probabilities of the targets. Results of computational tests show that the suggested algorithm solves problems of a medium size in a reasonable amount of computation time.     

智能控制系统研究现状与展望

控制理论的发展正面临着新的突破，智能控制将成为控制理论发展中的一个新阶段．本文以近年来智能控制领域的研究成果为基础，结合国际上一些比较值得注意的动向，分析了智能控制系统的结构特点，对其研究现状进行了综述，进一步探讨了相关问题，并提出了智能控制系统今后可能的发展方向．     

Subjective Well-Being Among College Students

Social Indicators Research - This study examined the subjective well-being of Korean college students and its relation with personality constructs, such as self-esteem, collective self-esteem, and...     

A Decision Framework for Managing Risk to Airports from Terrorist Attack

This article presents an asset‐level security risk management framework to assist stakeholders of critical assets with allocating limited budgets for enhancing their safety and security against terrorist attack. The proposed framework models the security system of an asset, considers various threat scenarios, and models the sequential decision framework of attackers during the attack. Its novel contributions are the introduction of the notion of partial neutralization of attackers by defenders, estimation of total loss from successful, partially successful, and unsuccessful actions of attackers at various stages of an attack, and inclusion of the effects of these losses on the choices made by terrorists at various stages of the attack. The application of the proposed method is demonstrated in an example dealing with security risk management of a U.S. commercial airport, in which a set of plausible threat scenarios and risk mitigation options are considered. It is found that a combination of providing blast‐resistant cargo containers and a video surveillance system on the airport perimeter fence is the best option based on minimum expected life‐cycle cost considering a 10‐year service period.     

A novel auto-regressive fractionally integrated moving average–least-squares support vector machine model for electricity spot prices prediction

In the framework of competitive electricity market, prices forecasting has become a real challenge for all market participants. However, forecasting is a rather complex task since electricity prices involve many features comparably with those in financial markets. Electricity markets are more unpredictable than other commodities referred to as extreme volatile. Therefore, the choice of the forecasting model has become even more important. In this paper, a new hybrid model is proposed. This model exploits the feature and strength of the auto-regressive fractionally integrated moving average model as well as least-squares support vector machine model. The expected prediction combination takes advantage of each model's strength or unique capability. The proposed model is examined by using data from the Nordpool electricity market. Empirical results showed that the proposed method has the best prediction accuracy compared to other methods.     

Information-based thinning of point processes and its application to shock models

Thinning of point processes is a useful operation that is implemented in various stochastic models. When the initial point process is the nonhomogeneous Poisson process (NHPP), the thinned processes are also nonhomogeneous Poisson processes independent of each other. The crucial assumption in deriving this result is that the corresponding classification of events is independent of all other events, including the history of the process. However, in practice, this classification is often dependent on the history. In our paper, we define and describe the thinned processes for the history-dependent case using different levels of available information. We also discuss the applications of the obtained general results to the corresponding shocks models.     

大城市外来人口分布态势的分析与启示——以上海为例

随着都市区这类新型城市化空间形态的发展,对大城市外来人口问题的研究不应仅仅停留在总量变动的探讨和空间无差别化的政策设计。近年人口普查数据显示,上海外来人口分布正扩散到全市的各个区域,呈"面状侵入"的发展态势,其中远郊区外来人口增长最为突出。外来人口与上海市户籍人口居住空间的交叉、重叠、渗透将普遍出现在全市各个环带。外来人口的性别、年龄、受教育程度等结构特征在都市区内部均呈现比较明显的环带差异。经济发展、产业结构调整、大型居住区规划建设等对外来人口分布变动产生较大影响。二元城市管理模式下,外来人口公共管理与服务的压力存在显著的空间非均衡性,为此应设计一套具有空间响应性的公共管理与服务机制。上海各类属性外来人口的空间分布也呈现明显的环带差异特征,这些都是将来精细化政策设计的现实依据。     

What Makes Koreans Happy?: Exploration on the Structure of Happy Life among Korean Adults

The current study explored the perceptions of Korean people about what can make them happy and constructed a comprehensive measurement of happiness of Korean. A total of 61 Korean adults participated in Focused Group Interview (FGI), where they were asked three questions (e.g., What makes you happy? What could make you happier than now? In general, who is a happy person?). Participants’ responses were reviewed by the present investigators independently and 152 statements of happy life with 18 categories were derived from content-analysis. The list of 152 statements of happy life was administered to 517 Korean adults to assess the importance of each item for Koreans’ happy life through the objective rating scale (6-point Likert scale). Confirmatory factor analysis showed that most factors were unidimensional. The items with low reliability were deleted and some new items were added, resulting in the experimental form of the Happy Life Inventory with 156 items and 18 categories including a new category of religion. The preliminary form of the Happy Life Inventory and the Psychological Well-being scale were administered to a nationwide sample of 1503 Korean adults in order to assess their happiness through 6-point Likert scale. The responses from 877 participants were submitted to exploratory factor analysis. The items with low factor loadings were excluded and 98 items with 16 factors were included in the final version of the Happy Life Inventory. Confirmatory factor analysis of the responses from 611 subjects confirmed that the 16 factor model was appropriate and most categories had one underlying dimension with moderate to high reliabilities. Correlations between the Happy Life Inventory and the psychological well-being scale supported construct validity of the Happy Life Inventory. Suggestions for further research were discussed.     

人民性:习近平家庭文明建设重要论述的真谛

人民性是“以人民为中心”发展思想的高度凝炼和集中体现,也是习近平关于家庭文明建设系列重要论述的真谛。从主体维度看,人民是习近平倡导的新时代家庭文明建设的承载者、守护者和创新者。从目标维度看,加强新时代家庭物质文明、精神文明、政治文明建设的目标分别是:提高人民的获得感、幸福感、安全感,增强人民的归属感、认同感、荣誉感,提升人们的清净感、信任感、亲情感。从价值维角度看,坚持以人为本的价值基础、民族复兴的价值理想和社会和谐的价值标准,可以实现人民性的价值取向。