摘要：采用求解N-S方程作为优化算法中的CFD分析方法,基于标准粒子群优化算法(PSO),将其与遗传算法中的选择机制相结合,形成了一种改进的基于自然选择的粒子群算法(SELPSO),以提高算法的求解精度和改善算法的全局收敛性。为改善串行粒子群算法效率低,耗机时等缺点,文中将分布式计算引入到优化设计过程中,实现了基于分布式粒子群算法的翼型设计优化系统,设计实践表明,文中发展的优化算法对优化设计系统质量和效率都有着大幅度的提高,在工程中具有很好的实用价值。

摘要：根据我国文化背景特点设计的包括16个问题的《酒依赖筛查表》,经8个协作单位进行9次测试,共测试3824人,灵敏度0.99,特异性0.74,总效率0.79。测试结果说明本筛查表适用于我国酒依赖的流行病学调查。

摘要：FPGA芯片的I/O端口无法直接的读取NIM标准电平信号,因此一般都需要一个电平适配器。本文介绍了一种可以将NIM标准电平信号转换为FPGA芯片可以读取的LVDS电平信号的电路设计(NIM-LVDS电平适配器)。该电路设计通过PCB板的制作,电路调试,以及和FPGA芯片的连接测试表明该电平转换电路具有工作稳定、高速传输和多路同步的特点。

摘要：For mid-latitude cities, higher summer temperatures due to climate change are a cause for concern because they aggravate the urban heat island phenomenon and reduce thermal comfort inside buildings. By acquiring the appropriate knowledge and skills, architects and urban designers can become key actors in adaptation to climate change. Two workshops bringing together architects and urban designers provided evidence of deficiencies in this area. We hypothesize that a design support tool （DST） focused on the issue of adaptation of mid- latitude cities to rising summer temperatures could help improve knowledge and skills of professionals in the field. The first section presents the results taken from a review and classification of DSTs, which highlight the toots＇ features that are LikeLy to reach this goal Toots of the ＂hybrid＂ category seem most appropriate. To verify this, seven DSTs were selected and tested by fourteen students enrolled in a graduate-level architecture design studio. The second section presents the results from this test, including an analysis of the final projects, a web- based questionnaire and two focus groups. The relevance of hybrid approaches is established, but the results bring into question the capacity of a single DST to meet the individual and multiple needs of professionals.

摘要：目的： 建立适合疟疾流行区现场应用的ＰＣＲ 检测间日疟的方法， 并在现场与常规涂片镜检法进行比较。方法： 通过改良血样的采集及模板处理， 设计引物及优化反应条件等， 建立简便、敏感与特异的ＰＣＲ检测间日疟原虫的方法， 并在海南省疟疾流行区对３１０ 例间日疟患者与镜检法进行比较。结果： ＰＣＲ 检测间日疟原虫具有特异性， 其敏感性为１０ 个原虫／μｌ。ＰＣＲ检测和镜检法的阳性率分别为３４．２％ 和３１．９％ ， 与ＰＣＲ比较， 镜检法有５ 例误诊或漏诊。结论： 此ＰＣＲ 法可用于现场检测间日疟患者。

摘要：The hydrodynamic characteristics and body shape of catfish, Hypostomus, are used to design and develop an Autonomous Under- water Vehicle （AUV） named ZRAUV for subsea pipeline and cable inspection. Among the hydrodynamic characteristics, stability of this bio-inspired AUV, which may be adversely affected by disturbances such as marine currents during inspection process, is taken into consideration and evaluated both numerically and experimentally. Concerning numerical investigation, computational fluid dynamics based on Reynolds Averaged Navier-Stokes equations are applied to compute the hydrodynamic damping derivatives needed for stability analysis. In order to verify the numerical predictions, computations are also performed for the well-known submarine body with a typical axisymmetric hull shape, SUBOFF. Experiments are also carried out for both proposed AUV and a conventional axisymmetric one using self-propulsion tests. Measurements of turning rate in turning circle maneuver are in reasonably good agreement with those of numerical estimations and indicate that the turning rate of conventional bodies like SUBOFF is approximately 3.8 times as great as that of bio-inspired AUV. In other words, the findings reveal that in comparison with common axisymmetric bodies, the proposed AUV with biological hull shape is more stable by about 99%, thus, it is highly suitable for subsea pipeline and cable inspection.

摘要：通过大全息针法和普通针法对照治疗中风偏瘫 36 0例 ,按照《国际针灸临床研究规范》和DEM的方法 ,进行科研设计和评价。研究结果表明 :大全息针法治疗中风偏瘫能显著提高患者日常生活活动能力 (BI指数积分 ) ,提高患者生活质量 ,具有重大社会效益。

摘要：The architectural design studio course is generally considered the backbone of any architectural curriculum and follows a particular method of problem solving,which makes it a distinctive *** projects in most of the architectural programs are divided into two main phases,namely,research and project *** generate many findings from the research phase that are considered *** research problem emerges when students finish writing the research thesis,and most face difficulty in translating the collected data into actions to engage the initial idea of the ***,this study aims to high-light the transitional stage between the research and schematic design phases,which is described in this study as the"predesign bridging phase."The goal is to propose a practical strategy for bridging the gap between the research and schematic design phases to facilitate derivation of the design concept from different output variables to enable the creation of a suitable architectural morphological *** study adopts two research *** is proposing a new pedagogical framework and applying it to the architectural graduation design studio at Prince Sultan University in Riyadh,Saudi *** other is conducting a survey among students to evaluate the efficiency of the proposed framework in helping them bridge the gap between the research and schematic design *** and inferential statistics analysis methods are used to analyze the research data and study the correlation between the reflection of the new applied framework in the predesign bridging phase and the students'satisfaction toward the final projects'product and performance in the final *** study ends with a conclusion on how the applied teaching strategies facilitate the project starting point and raises the importance of proposing and testing new assessment strategies that are suitable for each phase in the graduation design studio.

摘要：比较了计算机多道脉冲幅度分析系统与NIM(Nuclear I nstrument Module)多道脉冲幅度分析系统各自的特点,并介绍了后者的构架及其工作原理。对峰值展宽电路进行了功能分析和指标测试,并用NIM多道脉冲幅度采集卡进行了实际数据获取,从测得数据绘制出了脉冲幅度谱,其半高宽约为0.075%。在经过长达200多个小时的运行测试中,由该多道脉冲幅度采集卡与上位PC机组成的NIM数据获取系统工作稳定,已能初步满足小规模多参数数据获取系统的要求。

摘要：税收是有效的"控烟"手段之一,通过调整烟草税收制度来加强对烟草消费的控制,是中国履行加入《烟草控制框架公约》的承诺。本文阐述了运用烟草税收进行控烟的经济理论基础,总结了烟草税收在全球控烟中的实践,分析了当前形势下中国烟草税制调整需要考虑的主要制度设计要素,并对我国本次烟草消费税的调整进行了评价,对下一步烟草税制改革方向提出了政策性建议。