金融控股公司内部交易监管

现实社会存在模式各异的金融控股公司,金融控股公司在从事内部交易时可能蕴含着巨大的风险,那么对金融控股公司内部交易实施监管就显得非常必要。在借鉴发达国家对金融控股公司内部交易监管经验的基础上,结合中国实际情况,构建我国金融控股公司内部交易监管框架主要应从以下几个方面着手：加快金融控股公司立法,建立金融防火墙制度,完善内部交易信息披露制度。     

Modeling the effects of forest harvesting on landscape structure and the spatial distribution of cowbird brood parasitism

Timber harvesting affects both composition and structure of the landscape and has important consequences for organisms using forest habitats. A timber harvest allocation model was constructed that allows the input of specific rules to allocate forest stands for clearcutting to generate landscape patterns reflecting the look and feel of managed landscapes. Various harvest strategies were simulated on four 237 km² study areas in Indiana, USA. For each study area, the model was applied to simulate 80 years of management activity. The resulting landscape spatial patterns were quantified using a suite of landscape pattern metrics and plotted as a function of mean harvest size and total area of forest harvested per decade to produce response surfaces. When the mean clearcut size was 1 ha, the area of forest interior remaining on the landscape was dramatically reduced and the amount of forest edge on the landscape increased dramatically. The potential consequences of the patterns produced by the model were assessed for a generalized neotropical migrant forest bird using a GIS model that generates maps showing the spatial distribution of the relative vulnerability of forest birds to brood parasitism by brown-headed cowbirds. The model incorporates the location and relative quality of cowbird feeding sites, and the relation between parasitism rates and distance of forest from edge. The response surface relating mean harvest size and total area harvested to the mean value of vulnerability to cowbird brood parasitism had a shape similar to the response surfaces showing forest edge. The results of our study suggest that it is more difficult to maintain large contiguous blocks of undisturbed forest interior when harvests are small and dispersed, especially when producing high timber volumes is a management goal. The application of the cowbird model to landscapes managed under different strategies could help managers in deciding where harvest activity will produce the least negative impact on breeding forest birds.     

商业空间中室内植物景观应用的探讨——以上海南京路、淮海路、徐家汇三大商业圈为例

城市化进程促进了现代商业的发展,商业空间作为商业活动中的一部分,正逐渐受到人们的重视。本文以上海地区南京路、淮海路、徐家汇三大商业圈为例,调查统计了商业空间中室内植物的种类、分布情况和装饰形式,分析了室内植物运用的现存问题。并从解决商业空间中室内植物景观现存问题的四大原则入手,对现存问题提出了对策建议和生态景观的体验模式。     

介电弹性体圆柱形驱动器静态特性分析

介电弹性体驱动器的工作条件本质上属于静态操作范围。针对介电弹性体膜材料特性及圆柱形驱动器具体结构对其静态特性的影响,对圆柱形驱动器轴向力的主要影响因素进行了研究。采用超弹性材料Yeoh模型及ABAQUS仿真软件分析了因介电弹性体膜的横向侧边收缩、卷绕后的周向松弛、层间挤压导致的驱动器轴向力变化情况。与实际驱动器的结构尺寸对比表明,驱动器卷绕后的膜层周向松弛对驱动器轴向力影响最大,误差达25.9%,考虑后两项影响因素后计算出的驱动器轴向力与实际误差小于5%;最后对圆柱形驱动器的静态刚度进行了分析,实验结果表明在大位移拉伸时需考虑薄膜滑移因素的影响。     

基于车内噪声控制技术的研究

随着汽车保有量的不断增加,车辆噪声污染已经成为人们越来越关注的环境问题。本文分折了车内噪声声源机理,并针对汽车车内噪声的来源提出相应的控制技术,以达到降低车内噪声的目的。     

Development of the Computer-Aided Design Subsystem

The paper mainly covers the research work of the CAD subsystem. In this subsystem, the menus with icons are used to describe the construction shape, and 2D primitives are pieced together to compose the part to be designed. By using the internal code and building the internal code file to store optimal part constructions, the standardization and rationalization for part design could be achieved.     

Experimental Study on Seismic Behavior of Penetrated Interior Diaphragm on One Side Beam-to-Column Connection for Concrete-Filled Square Steel Tube

A total of three experimental specimens of penetrated interior diaphragm on one side had been tested under low-cyclic reversed loading to study the hysteric behavior,strength and stiffness degradation,ductility,energy dissipation capacity and the failure modes.The only difference of all specimens was the axial compression ratio.Experimental results show that the story drift ductility ratios are 2.11~2.32,and the energy dissipation ratios are 1.141~1.502 at the peak load.Additional anti-seismic design and research recommendations are presented.     

基于Fluent的串接组合式迷宫螺旋泵数值模拟

通过Gambit完成流域的三维造型和网格划分,应用计算流体力学Fluent软件,采用多重参考系（MRF）方法,基于RNG k-ε双方程湍流模型和SIMPLEC算法,对泵内三维单相流场进行数值模拟.提出一种新型结构的迷宫螺旋泵,探讨了环槽宽度、环槽深度对新型结构泵性能的影响,确定最优设计参数,结果表明：环槽宽度、环槽深度分别为4,3 mm时泵性能最佳.通过分析模型的压力分布、速度分布、湍动能分布,研究泵内流体的流动和能量交换,对比分析2种模型泵的水力性能.分析表明：与原模型泵相比,新模型泵增压幅度和增压速率明显较大,螺旋环进口处增压速率高于螺旋环内部增压速率;转子流域内流体速度明显高于定子流域,间隙中面上存在强烈的质量和动量交换;流体增压速率与湍动强度有关,流体湍动强度越大,增压速率越大;新模型泵性能优于原模型泵,在最高工况点,扬程同比增加约3.42 m,水力效率提高约0.85%;流量大于最高工况点流量,新模型泵的效率明显高于原模型泵.     

基于免疫算法的电力系统最优潮流计算

根据人和其他高等动物免疫系统的机理，研究一种计算具有非线性多峰值的非凸规划性质的电力系统最优潮流的新算法——人工免疫算法。该算法结合电力系统最优潮流的数学模型，将目标函数和不等式约束条件作为抗原，将潮流搜索空间的解作为抗体，依据抗原与抗体的结合力以及抗体之间的结合力对表示潮流解的抗体进行评价和选择，通过记忆细胞对抗体的抑制作用有效地摆脱潮流解局部最优点，通过抗体之间的相互激励作用提高了最优点附近的搜索效率。提出可以运用于工程上的模型和基本算法步骤，以及求解的实现过程，通过对IEEE30节点系统运用人工免疫算法、遗传算法和原对偶内点法三种方法计算结果对比，说明了人工免疫算法收敛速度快和全局搜索能力好的有效性。     

室内照明线路设计施工中常见的问题与对策

文章就室内照明线路设计施工中常见的问题进行分析研究,以便探讨室内照明线路设计施工的优化措施,从而提高室内照明线路设计质量,为人们的居住环境和生活提供更优质的环境和条件。