行业英语教学与高职院校英语教师“双师素质”的建设

高职院校英语教育与高中教育并无区别,这直接导致大学英语课堂教学质量下滑。针对这一现状,基于对已有问题的分析,探讨了行业英语的定义及实行行业英语教学对师资的要求:"双师素质"。就如何建设高职院校英语教师"双师素质"提供了策略,以期为大学英语教学改革提供一种思路。     

Optimal control strategies for dividend payments and capital injections in compound Markov binomial risk model with penalties for deficits

We consider the compound Markov binomial risk model. The company controls the amount of dividends paid to the shareholders as well as the capital injections in order to maximize the cumulative expected discounted dividends minus the discounted capital injections and the discounted penalties for deficits prior to ruin. We show that the optimal value function is the unique solution of an HJB equation, and the optimal control strategy is a two-barriers strategy given the current state of the Markov chain. We obtain some properties of the optimal strategy and the optimal condition for ruining the company. We offer a high-efficiency algorithm for obtaining the optimal strategy and the optimal value function. In addition, we also discuss the optimal control problem under a restriction of bounded dividend rates. Numerical results are provided to illustrate the algorithm and the impact of the penalties.     

民国时期的社会转型、政权建设与族群关系

中华民国时期是中国历史中最复杂和最动荡的时代。贯穿民国38年历史的有三条主线。第一条主线是中国各族人民坚持反对帝国主义侵略的斗争;第二条主线是中华民国下属各民族维护国家统一、与帝国主义支持的国内分裂势力的斗争。这两条主线是晚清"救亡图存"斗争的延续。第三条主线是探索如何实现国家体制的政治转型,实现从"多元型帝国"向现代"民族国家"的体制过渡和国民思想过渡。在整个民国期间,帝国主义别有用心地向中国各族群输入"民族"意识,并扶植代理人。民国历史中,最核心的利益是救国图存,捍卫中华民族的独立和领土完整。在评价民国所有的历史人物时,这是一条最根本的底线。     

Missing value imputation method for disaster decision-making using K nearest neighbor

Due to destructiveness of natural disasters, restriction of disaster scenarios and some human causes, missing data usually occur in disaster decision-making problems. In order to estimate missing values of alternatives, this paper focuses on imputing heterogeneous attribute values of disaster based on an improved K nearest neighbor imputation (KNNI) method. Firstly, some definitions of trapezoidal fuzzy numbers (TFNs) are introduced and three types of attributes (i.e. linguistic term sets, intervals and real numbers) are converted to TFNs. Then the correlated degree model is utilized to extract related attributes to form instances that will be used in K nearest neighbor algorithm, and a novel KNNI method merging with correlated degree model is presented. Finally, an illustrative example is given to verify the proposed method and to demonstrate its feasibility and effectiveness.     

Brush Pen Follows the Mind and Artistic Creation of Animals is the Artist Himself ——On Li Pingye's freehand traditional Chinese ink painting

正Reading carefully of Li Pingye’s painting works with tiger being the main theme of creation,one will always feel a strong shocking force.This kind of feeling comes from two aspects.First,his works convey rich humanistic spirit connotation.Se cond,Mr.Li has a unique style of artistic language of overbearing Chinese ink painting.In the circle of     

能源安全体系建构的理论与实践

在我国能源安全面临的一系列重大问题中，能源领域的政策规划薄弱，法律保障制度建设与管理体制改革滞后，能源供应与能源安全保障体系缺乏相关政策、法律和制度的保障。只有真正做到政策、法律和管理体制“三位一体”，才能确保国家能源安全。本文从能源安全体系建构的理论和实践出发，借鉴西方能源安全战略实践，从政策、法律和管理体制等角度，对我国能源安全体系的内在机制建构进行分析，旨在为我国与中东能源合作提供借鉴与参考。     

我国并购市场的“赢者诅咒”问题研究

对"赢者诅咒"的三大理论流派即信息不对称理论、行为经济学理论以及这两者相汇合的新理论进行了阐述。在此基础上,从理论和实践的层面,重点讨论了将"赢者诅咒"应用于我国资本市场尤其是上市公司并购行为研究的可行性,并对其研究前景进行了展望。     

天津城建改革开放30年十大亮点

天津自1404年建城至今已有600多年．而改革开放的30年，是天津城市发展最好、规模最大、提高最快、水平最高的时期，可以说是天津城市发展史上光辉灿烂的一页。在这30年中．天津城市建设亮点频闪、星光四射，综合起来有十大亮点，分述如下：     

试论《白鹿原》中作家主观思想的渗透

思想性是文学的一个显著特征，是作家的创作实践在作品中流露出来的倾向性。即便描写或叙述一件比较小的事情，里面也渗透着作家对社会、对人生、对世界的看法，同时也包含着对某种新发现的独到理解。《白鹿原》在刻画鲜明的人物形象的同时也渗透着作家对传统文化、家族文化、婚姻文化等方面的独特见解，使人们能够深深地感受到作家的文化观、历史观、人生观。