非连续型Volterra积分方程最小和最大解

本文研究了带有不连续项的 Volterra积分方程的最小和最大解 ,并证明了参考文献 [1]中的主要结果的条件可被较弱条件代替     

局部凸拓扑空间上的广义拟变分不等式

本文讨论了局部凸拓扑空间上的一类广义拟变分不等式问题。在适当的单调和连续性条件下,利用KKM定理和多值映射的不动点定理作为工具,得到了一个广义拟变分不等式解的存在性定理。所得结论是文献[1]的结果的改进。     

浅析歌曲创作中的整体构思与布局

歌曲是音乐体裁中一种重要的表现形式，亦指有、无件奏的声乐作品。所有歌曲都具有一个共同的特征：歌词与音乐高度完美的结合。并以其有声的表达方式一同随着时间的延续得以展现,歌曲创作是一种融思想性、艺术性、音乐性、文学性为一体的创造性劳动，故歌曲创作应从歌词的挑选与风格的把握；如何设计词曲结合后的曲式结构；对同一首歌词的不同整体构思；和声的纵向思考；歌曲伴奏的织体设计五方面来“整体构思与布局”。     

基于线性矩阵不等式的牵制控制策略分析

研究复杂动力学网络的同步牵制控制问题.通过引入牵制控制,对具有大规模节点网络中的小部分节点实施线性反馈控制策略,使得整个网络的所有节点均达到同步.针对一类一致连结的耦合复杂网络模型,采用线性矩阵不等式的方法给出了实施牵制控制达到同步的充分条件.该条件表明,选择牵制异质网络中度较大的节点可能更容易使得网络实现同步.特别地,对于特定的内部耦合矩阵和足够大的耦合强度,只要对网络中任一节点实施牵制控制就可以保证整个网络同步的实现.数值仿真验证了上述结论的有效性.     

基于海陆运整体成本的集装箱空箱调运优化研究

现有集装箱空箱调运研究分为陆上调运系统研究和海上调运系统研究,分别建立以成本最小为目标的调运策略优化模型。由于通过海运到某港口的空箱量作为该港口范围内陆运决策的初始条件,两系统分别求解无法获得整体成本最优的调运策略。本文在分析空箱流转过程的基础上,提出建立基于海陆运整体成本最优的集装箱空箱调运模型,并通过算例揭示海运、陆运成本中不同因素对整体成本的影响。     

Gender in Academic Career Tracks: The Case of Korean Biochemists

How important is academic performance in obtaining a tenure‐track position in academic science? I use data on Korean biochemists and analyze them from both institutionalist and gender perspectives. In so doing, I illustrate the ways academic performance and gender interact with one another to maintain a gender barrier for Ph.D.s entering an academic career. The main findings are as follows. First, academic productivity did influence the job market outcomes, but the male scientists benefited from publications in both SCI and non‐SCI journals, whereas the female scientists benefited only from those in SCI journals. I also found a positive effect of overseas doctoral training only for the female scientists. Such analysis suggests that women as a minority in academic science are pressured to prove their legitimacy through more rigorous criteria of academic performance. Thus, ostensibly gender‐neutral rules of academic performance can be applied in such a way as to maintain gender inequality.     

加权Ky Fan不等式

用Jessen不等式证明了加权的KyFan不等式成立，证法简短，还证明了与之相应的另一个加权不等式．     

Overcoming the Glass Barriers: Reflection and Action in the ‘Women to the Top’ Programme

Numerous equality programmes have been launched with the aim of promoting a more gender equal work life, yet little substantial action has been reported. This article presents a study of the Women to the Top programme in Sweden, supported by the European Union (EU) and aimed at promoting more women into top management positions. The research suggests that large‐scale projects assembling such heterogeneous actors as industry representatives, politicians and scholars tend to generate further reflection and discussion rather than promoting adequate and highly needed action. Drawing upon Brunsson's distinction between action rationality and decision rationality, the relatively modest effects of large‐scale equality programmes are examined, not in terms of a lack of commitment or competence on the part of the participants but as a matter of the disjunction between reflection and action. Reconciling reflection and action, that is, emphasizing not only reflection on gender inequality but also privileging various forms of practical action (such as new policies, the appointment of female managers, restructuring gendered wage inequalities or new recruitment procedures), is therefore a top priority for policymakers desiring more substantial changes in the gendered outline of industry.     

Banach空间上一类算子迭代不等式

本文利用非线性泛函分析的锥理论，获得了一类算子迭代的比较定理，进而给出了一类算子迭代不等式的全连续解的存在性条件．     

CHARACTERIZATION OF EFFICIENT SEQUENTIAL SCHEMES FOR POPULATION GROWTH MODELS1

For population growth models, which include standard processes like Poisson, birth, birth-death, immigration-death, simple epidemic and M/M/1 queue as particular cases, we obtain efficient sequential schemes and characterize all efficiently estimable functions of the parameters by first deriving a sequential version of the information inequality.