内陆外向型城市建设的障碍因素集层次结构分析模型

本文以西安内陆外向型城市建设为例，运用系统工程的基本思想、网络理论及综合评价技术，构建了内陆外向型城市建设的障碍因素集层次结构分析模型，找到了西安内陆外向型城市建设的主要和次要障碍因素集，提出了在目前和今后较长的一段时间内，西安内陆外向型城市建设的主要任务是大力发展第三产业。本模型方法对其它地区的内陆外向型城市建设及复杂的社会经济系统障碍因素定量分析研究也有较好的参考价值     

幼儿园教师游戏观与幼儿入学准备

运用潜在剖面分析方法探索幼儿园教师游戏观类型及其与幼儿入学准备的关系,并采用中国幼儿园教师游戏观量表和 幼儿入学准备量表对来自福建省城乡不同性质的674 名幼儿园教师进行调查,结果表明：幼儿园教师群体的游戏观可以划分 为：“高游戏支持和高学业关注”型和“高游戏支持和低学业关注”型,其中“高游戏支持和高学业关注”型所占比例较低;与“高 游戏支持和低学业关注”类型相比,“高游戏支持和高学业关注”类型幼儿园教师更有利于促进幼儿的入学准备;个体因素（包 括教师专业、教师学历、教师资格等）对幼儿园教师游戏观剖面类型的预测力不显著。     

认罪认罚量刑从宽实效研究——基于故意伤害罪轻罪的数据解读

我国认罪认罚从宽制度设计具有明显的公正优先价值导向。通过构建非线性量刑模型分析177161份故意伤害罪致人轻伤的初审判决书发现,司法实践中表现出明显的“从宽”克制倾向：认罪认罚对轻罪量刑的作用倾向于在“底线”游走,接近量刑情节“坦白”;传统量刑情节仍在习惯性适用,认罪认罚发挥实效的空间不足。在法定主义背景下推动更高层次上公正与效率的统一,可以考虑,一方面建立认罪认罚分级分类制度,适当加大对轻罪的从宽幅度;另一方面扩大认罪认罚从宽幅度的法定空间,在立法上赋予认罪认罚“减轻”情节地位,破解量刑折扣零和博弈的困局。     

A gold key to initiate a new situation in family planning work]

Because of the popularization of a responsible agricultural production system, the livilihood of peasants has been improving greatly, while the demands and needs of the general public are also increasing at the same time. Still under the influence of the traditional belief of carrying on one's family line and emphasis on having male children, married people prefer to have more childre, and the birth rate is now rising again. In order to solve this new problem, we need to teach the peasants national policies on population, land utilization, and food supply. In order to initiate a new situation in family planning work, we need to control this "gold key" of ideological education and propaganda. The emphasis should be placed on ideological education for cadres at all levels as well as the general public in order that they may understand the Party's strategy. Education on the national strategy should be combined with material interests of the peasants, and reward and punishment in production should also be linked up with that of family planning. Social measures are needed to reduce economic burdens of the peasants, offer better treatment for single-child households, and provide adequate care for old and retired people. Family planning projects should be consolidated and improved. Scientific management, facilities and techniques for birth control, compensation for working personnel in family planning, and other practical problems deserve immediate attention and solution.     

Energy conservation through resource-aware movement in heterogeneous mobile ad hoc networks

Energy conservation in mobile ad hoc networks is of paramount importance because most mobile nodes usually have very limited energy supply. Previous research on this issue focused on the design at the network or MAC or physical layer. In this paper, we study this problem from the new perspective of node mobility, i.e., analyzing the impact of node movement on energy conservation. In particular, armed with the inherent resource heterogeneity in mobile ad hoc networks, we propose a novel resource-aware movement strategy to make better use of some powerful nodes to achieve energy conservation. We also formulate the resource-aware movement as a NP-complete distance-constrained least-cost (DCLC) routing problem and propose an efficient heuristic solution. Extensive simulations have been used to demonstrate the effectiveness of the proposed schemes.     

铝钢异种金属CMT焊接变形研究

针对目前使用冷金属过度焊（CMT）对铝钢异种金属薄板进行焊接时,存在焊接质量差,焊接热变形及使用性能低等缺点,对薄板件焊接过程采用SYSWELD软件进行模拟。通过不同的试验参数进行组合,得出金属薄板在X,Y以及整体方向上的焊接变形量,分析不同焊接参数对焊接热变形的影响规律。结果表明：在达到焊接要求的前提下,应尽量减少焊接时间和焊接电流;在一定焊接电压范围内,焊接电压越大,相同时间内焊接变形量就越大,Y方向焊接变形值约为X方向的1.5倍;为了避免焊接变形量过大,宜选用相对较大的焊接速度。     

晚清民初苏籍译家群的生发及地域文化缘由

晚清民初在西方文化与科学的译介和传播方面,苏籍译家作出了重要贡献.他们具有家国天下的胸怀,为拯救民族危难、改善社会民生、启迪民智寻找良方.他们立志翻译事业,译笔间传达出对民族兴衰成败的使命感.基于史料的爬梳与总结,聚焦晚清民初时期典型的苏籍译家的译事、译著,审视他们的翻译贡献,并从地域人文传统的视角进一步窥探苏籍译家群生发的地域缘由.     

心态史视角下的孙宝琦与辛亥山东独立

辛亥革命时期,末任山东巡抚孙宝琦既效忠于清廷,又对革命党人持有恻隐,希望清廷与革命党人实现政治和解。但是,他面对省内的独立呼声和北方清廷的双重压力,无法从容转圜,从而陷入彷徨不定的心态纠结中。孙宝琦先是被迫宣布山东独立,当袁世凯指使第五镇反对独立后,孙宝琦即秉承袁世凯旨意,宣布取消独立。山东独立的波折造成了孙宝琦政治人格的分裂,使其长期受到负面评论,但是客观上却使山东避免了南北冲突的战火,因而应当予以充分理解。     

宏观经济学教学方法探讨

本文分析宏观经济学的自身特点,并据此提出相应的有效的教学方法。     

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)