论专业分工视角的高校创新创业模式

高等教育创业创新模式需要结合专业分工逐步推进,建立的目标应当以社会分工演化的趋势进行设计,不仅要考虑专业分工过程中个体差异对高等教育创业创新的影响,还要将社会分工目标与高等教育发展体系结合起来。分析当前高等教育创新体系中师资力量缺乏、实践场所缺乏以及缺乏规范体系的现状,提出建立个性化差异目标,优化资源,实现创新规范体系的长效机制等建议,为建立我国高校创新创业模式提供了良好的发展启示。     

CO-OFDM系统中基于线性预处理的新相位噪声抑制算法

针对相干光正交频分复用（coherent optical orthogonal frequency division multiplexing,CO-OFDM）系统中相位噪声引起的载波间干扰（inter-carrier interference,ICI）问题,提出了一种基于线性预处理的新判决反馈相位噪声抑制算法。该新算法改进了线性预处理部分,利用循环前缀与OFDM符号固有的相关性,在时域进行简单的线性组合运算,充分利用了OFDM符号中冗余信息。仿真分析表明,在激光器线宽为200 kHz且误码率（bit error rate, BER）为10－4时,与判决反馈相位噪声抑制算法和一次迭代的判决反馈相位噪声抑制算法相比,该新算法BER曲线的信噪比（signal to noise ratio,SNR）分别改善了3 dB和1 dB,有效地降低由ICI引起的错误平层。     

Fair and efficient division through unanimity bargaining when claims are subjective

In a subjective claims problem several partners have conflicting perceptions on how a jointly produced surplus should be divided fairly amongst them. In a large-scale experiment, we compare the fairness and efficiency of three unanimity bargaining procedures used to reach a consensus in a three-partner subjective claims problem. Under each procedure partners move sequentially, making alternating proposals. The procedures differ in whether they ask for a complete division proposal (Offer and Exit rule) or only for a proposal regarding the partner’s own fair share (Demand rule); and in whether partners have to accept the entire division proposal (Offer and Demand rule) or only their own share (Exit rule). For the fairness assessment partial and impartial fairness views are used and we find that the Offer rule performs best in terms of allocative fairness and no worse in terms of efficiency.     

农户个体决策与农民经济组织的内生性——超边际视角下的农民经济组织

单个农户在分工协作中能够获得"1 1>2"的分工经济,通过特定的经济组织来安排单个农户的分工协作就会实现这种分工经济。但是,组织中的单个农户与其他经济主体必然存在着交易费用。当交易费用超过了分工协作的经济性,单个农户就不会选择加入经济组织。地方政府往往不能充分理解单个农户对经济组织中交易费用和相对价格的考虑,这导致了大多数农户不愿选择加入"模式"型的经济组织。因此,地方政府要以自身的分工特征合理融入农民经济组织发展的各个阶段。     

Optimal design of complex experiments with qualitative factors of influence

A complex experiment with qualirarive factors influencing the outcome of the experiment can be seen as a general ANOVA setup. A design of such an experiment will be the assignment at which of the possible levels of the factors the actual experiment should be performed. In this paper optimal designs of such experiments will be characterized with respect to three different optimality criteria including the so called uniform optimality of a design. The possible applications of the main optimization result providing these characterizations can be used to more general experiments. The particular results on these generalizations will be indicated at the end of this paper.     

Sexual Frequency and the Stability of Marital and Cohabiting Unions

Prior research found that lower sexual frequency and satisfaction were associated with higher rates of divorce, but little research had examined the role of sexual activity in the dissolution of cohabiting unions. We drew upon social exchange theory to hypothesize why sexual frequency is more important in cohabitation: (a) cohabitors' lower costs of finding sexual alternatives, (b) cohabitors' lower barriers to ending the relationship in the form of union‐specific economic and noneconomic capital, and (c) cohabitors' higher expectations for sexual activity. Using the National Survey of Families and Households (N = 5,902), we examined the relationship between sexual frequency and union dissolution. Results indicated that low sexual frequency was associated with significantly higher rates of union dissolution among cohabitors than married couples.     

再论吉登斯的阶级结构化理论

作为新韦伯主义社会分层理论的重要一支，吉登斯的阶级结构化理论以市场能力与准技术关系为轴心进行社会分层，将阶级关系作为一种社会结构，在阶级活动和阶级结构的互动中考察各个阶层的流动。阶级关系结构化包括阶级意识、阶级冲突、阶级剥削三个要素。依据“分工的规律是阶级划分的基础”的原则，可以解析其理论认识上的得失，阐明其理论在中国当前构建和谐社会中的现实意义。     

反垄断执法机关和产业监管机关职能划分的考察维度

我国《反垄断法》对于如何协调反垄断执法机关与产业监管机关之间的职能处于缺位状态,激化了二者在实践中的矛盾。在当前国情下,产业监管机关的存在有其合理性,二者之间实行合作模式有助于调和产业政策与竞争政策的关系。在考察具体职能划分时,需充分结合静态、动态及个别考察维度,既发挥二者各自的优势特点,又结合历史发展的具体阶段以及个案存在,最终实现提高效率的目的。     

基于单片机AT89C51的全自动变频恒压供水系统

介绍了一种新型的变频恒压供水系统.该系统根据供水管网的用水情况,调整水泵投入台数及转速,实行全自动恒压供水,达到高效节能的目的;其水泵用变频器软启动,对电网无冲击,能延长水泵的使用寿命.     

Optimal designs for exponential regression

This paper is concerned with the optimal design problem for the particular case of non-linear parametrisation:the parameters to be estimated are included in exponents.Some properties of locally optimal designs as functions of estimated parameters are investigated and a table of such designs in given.We consider also designs to be optimal in the sense of minimax approach.