假色槭人工驯化生长特性浅析

通过野生优良绿化树种假色槭的引种驯化和人工繁殖栽培,对其驯化情况、适应程度、生长特点等进行了详细的观测记录和分析研究,提出了相关应用措施和目前存在的问题。     

Nonparametric discrimination of time series data

A normality assumption is usually made for the discrimination between two stationary time series processes. A nonparametric approach is desirable whenever there is doubt concerning the validity of this normality assumption. In this paper a nonparametric approach is suggested based on kernel density estimation firstly on (p+1) sample autocorrelations and secondly on (p+1) consecutive observations. A numerical comparison is made between Fishers linear discrimination based on sample autocorrelations and kernel density discrimination for AR and MA processes with and without Gaussian noise. The methods are applied to some seismological data.     

Technology,Labour Characteristics and Wage‐productivity Gaps*

We use plant‐level employer–employee data in production functions and wage equations to examine whether wages are based on productivity. We use a stepwise procedure to find out how the results are influenced by the kind of data that is available. The models include shares of employee groups based on age, level and field of education, and sex. The gap between the age‐related wage and productivity effects increases with age. Education increases productivity, but wage under‐compensates productivity especially for those with the highest level of non‐technical education. For women the results depend greatly on the specification and method used.     

基于风险资产结构不确定性的商业银行整合风险度量研究

基于商业银行风险资产的动态变化性和资产的多重风险属性,结合 Copula 函数与不确定性理论,设计风险资产结构不确定的商业银行整合风险的度量模型,运用随机模拟、神经网络与遗传算法相结合的求解算法,整合度量中国银行、交通银行和招商银行的市场风险和信用风险,结果表明：模型及求解的方法有效,基于历史数据规律对商业银行整合风险度量,更具优越性和实用性。     

US domestic barter: an empirical investigation

This paper studies the barter industry developed in North America during the 1950s, pointing out some of its main characteristics. Thus, it examines its two main sectors: (i) corporate barter and (ii) commercial barter. Contrary to expectations, the analysis of official data shows that this phenomenon is essentially pro-cyclical for the commercial barter component. Moreover, commercial barter activity turns out to be complementary to the cash economy. While the two sectors display some differences in their pattern, they both help firms to increase their profits.     

中国水产品的比较优势和出口竞争力分析

通过分析中国水产品的资源禀赋状况和显示比较优势以及中国水产品生产和对外贸易的现状特点,得出中国水产品在国际贸易中显示出的优势远小于其资源禀赋优势的结论,认为实现经营方式由粗放到集约的转变是中国水产品生产和对外贸易健康持续发展的根本。     

基于战场仿真的智能指挥控制系统总体设计

研究了国内外先进的指挥控制系统,从未来信息作战方式、作战环境、作战需求等方面 重点分析了新型指挥控制系统的体系架构。在传统的指挥控制系统上结合指挥中心和各区域 级单位各自 的情报业务需求,提出了自顶向下、分区管辖、分级分层的体系结构。在战场态势推演下实 现对红蓝双方在特定战场环境中可能采取的侦察和作战行动的分析与预判,指出了实现智能 化 指挥控制系统的关键技术及方案。     

Exchange Rate Variability and Labor Market Performance in the Visegrád Countries

According to the traditional optimum currency area approach, not much will be lost from a very hard peg to a currency union if there has been little reason for variations in the exchange rate. This paper takes a different approach and highlights the fact that high exchange rate volatility may as well signal high costs for labor markets. Based on the paper by Belke (2003), the impact of exchange rate volatility on labor markets in the four Visegrád Economies (Czech Republic, Hungary, Poland, and the Slovak Republic) is analyzed, finding that volatility vis-à-vis the euro significantly increases unemployment. Hence, the elimination of exchange rate volatility could be considered as a substitute for a removal of employment protection legislation.     

合金化对Ni_3Al性能的影响研究

文章介绍了Ni3A1的力学性能，综述了不同合金元素对Ni3A1的力学性能的宏观影响，并大体从微观结构上分析了合金元素对其性能影响的原因。     

鱼刺图评价法在尾矿库溃坝事故中的应用

根据尾矿库现场危险、有害因素辨识结果,概括出尾矿库溃坝事故发主的四个主要因素:施工、排洪、渗流和管理,对主要因素的原因进行归纳、分析,找出了重要原因,应用鱼刺图法评价得到了尾矿库溃坝事故的危险程度和等级,提出了防止这类事故发生的重点安全对策措施,提高了尾矿库的安全管理程度。