Three‐Stage Decision‐Making Model under Restricted Conditions for Emergency Response to Ships Not under Control

A ship that is not under control (NUC) is a typical incident that poses serious problems when in confined waters close to shore. The emergency response to NUC ships is to select the best risk control options, which is a challenge in restricted conditions (e.g., time limitation, resource constraint, and information asymmetry), particularly in inland waterway transportation. To enable a quick and effective response, this article develops a three‐stage decision‐making framework for NUC ship handling. The core of this method is (1) to propose feasible options for each involved entity (e.g., maritime safety administration, NUC ship, and ships passing by) under resource constraint in the first stage, (2) to select the most feasible options by comparing the similarity of the new case and existing cases in the second stage, and (3) to make decisions considering the cooperation between the involved organizations by using a developed Bayesian network in the third stage. Consequently, this work provides a useful tool to achieve well‐organized management of NUC ships.     

王福玲:鼓书声声醉心田

古语常说:“闻香识女人”,可是我认识王福玲却是从“闻声”开始. “天恩,你先把弦儿调好吧,下一个节目就到咱俩了.赶紧准备吧.”循着这个熟悉的岫岩口音,一位穿着黑绒面旗袍、略施粉黛的中年女人就这样走进我的眼帘. “老师,听您的口音是岫岩人吧?” “是呀.你也是岫岩的?” “嗯!” 这是我与王福玲的初次相识.从“闻其声”到“寻其人”,没有文人笔下老乡见老乡时的“泪眼相看”,却充满了“他乡遇故知”的情致.于是,随性闲话家乡,不成想却意外地聊起了一段她与岫岩东北大鼓的不解之缘.     

The Structure of Legal Relations in Online Transactions*

As the civil law expression of internet plus transactions, the legal relations in online trading platform transactions constitute a complex aggregate of legal relationships composed of groups of legal relations. Specifically, they consist of three basic interlinked legal relationships: Contract relations for online trading platform services between the platform provider and the seller or service provider, and between the platform provider and the consumer. This includes the sales or service contract relations between the triad of the seller, the service provider and the consumer. These relations contain five kinds of major content, viz., the provision of transaction space, the publishing of transaction information, price escrow payment, distribution and delivery of the commodity, and transaction credit evaluation. They involve three forms of supplementary legal relations: the supplementary contract relationship between the platform provider and a third party payment institution; between the seller and third party credit reporting agency; and between the seller and a logistics enterprise. The three forms of supplementary contractual legal relations are set up to act on the major contents of the basic legal relationships in online transactions. On the basis of the online trading platform service contract relationships between the platform provider and the triad of the seller, the service provider and the consumer, the flow of the above- mentioned legal relations centers on the contract of sales or service set up between the seller, the service provider and the consumer to accomplish the aim of the online transaction, meet social needs and boost economic development.     

独立学院文化现状及改进对策

大学文化是大学所有成员在历史时间内创造的精神财富和物质财富的总和。而独立学院文化的现状是文化不够鲜明、完整、深厚,因此,独立学院需要从文化培育、文化落实、文化传承、文化创新等方面加以改进。     

胡锦涛“七一”重要讲话哲学思想探析

如何面对国际金融危机和不断变化着的国内实践,是中国共产党必须要解决的重大理论和实践课题。胡锦涛同志"七一"重要讲话运用发展了的马克思主义对变化了的国内外形势做了最新的哲学概括,从历史唯物主义的基本原理出发提出了继续坚持以经济建设为中心,坚持经济、政治、社会、文化四位一体的和谐发展,用发展的马克思主义指导新的实践等重要思想,给我们当前及今后较长一段时间的发展指明了方向,是我们应该长期坚持的重要指导思想。     

ENTRY BARRIERS,COMPETITION, AND TECHNOLOGY ADOPTION

I build a model of technology adoption to study the quantitative effect of entry barriers on total factor productivity (TFP). In my model, incumbent firms choose technologies that are sufficiently productive to deter entry from a potential competitor. I show that higher entry barriers help to deter entry and lead to the choice of less productive technologies. A novelty of my work is that I use a direct measure of entry barriers. I find that reducing entry barriers from their average level in the poorest 30% of countries to their U.S. level leads to a sizeable increase in aggregate TFP of 12%. (JEL O11, O43)     

我国大城市网络约车规制存在的问题及对策

网络约车模式是一种新生事物,引起了一系列社会问题,给政府监管带来了难处.梳理各大城市出台的网络约车运营管理暂行办法及其网约车发展中出现的一系列问题,分析提出针对当前网络约车行业规制发展的相关对策.     

开放经济下OFDI对产业结构升级效应及传导路径

开放经济下对外直接投资(OFDI)已成为我国融入世界经济的主要途径,在优化产业结构、推进经济转型等方面扮演着重要角色。根据OFDI与产业结构升级及传导路径的互动机理分析,在对安徽省OFDI投资概况和产业结构现状进行分析的基础上,选取2003—2017年相关数据为样本构建VAR模型,运用ADF检验、脉冲响应函数等方法从产业结构总水平角度,实证分析得出短期内安徽省OFDI所能带来的产业结构升级效应并不显著的结论。进而从具体传导路径角度,采用主成分分析法,从10个变量中提取主成分构建VAR模型,运用脉冲响应等方法实证分析得出安徽省OFDI可通过贸易、省内投资、就业和技术路径来促进产业结构升级。为此,安徽省应扩大OFDI规模,提升OFDI质量和效益;增强企业竞争实力和科技创新能力,优化对外投资结构;发挥政府宏观调控和政策引导作用,加大对企业的扶持力度。     

Uniformly strong consistency and Berry-Esseen bound of frequency polygons for α-mixing samples

In this article, the frequency polygon investigated by Scott is studied as a nonparametric estimator for α-mixing samples. By some known exponent and moment inequalities, we obtain the uniformly strong consistency and Berry-Esseen bound of the estimator. The present results relax the relevant conditions used by Carbon et al. Furthermore, the convergence rate of the uniformly asymptotic normality is derived, which is O(n^{? 1/11}) under the given conditions.     

田径运动训练过程控制理论研究述评

基于国内外相关文献,对田径运动训练周期理论、运动负荷控制理论、训练过程控制模式以及田径运动训练过程控制理论等进行综述.当前学术界在田径运动训练周期划分、训练结构等方面已经形成了统一的意见,但对训练周期的安排还存在部分分歧.关于运动负荷控制理论的研究是在适应人体能力的基础上进行的,而训练过程中控制模型的研究则是从数学以及专项训练等方面切入的,对田径运动员身体体能、训练强度承受能力以及运动内容等方面的研究呈现出交叉融合应用的态势.尽管以上研究有一定的局限性,但也为运动负荷理论以及训练过程控制理论打下了坚实的理论基础.