摘要：以安徽省董铺—大房郢水库为例,以水库缺水率最小和补水量最少为最优准则,考虑董铺—大房郢水库水源连通工程水量补偿式调节和接受上游淠河灌区水库群补水的特殊机制,构建董铺—大房郢水库双目标优化供水调度模型,并采用基于混合交叉算子改进的NSGA-Ⅱ算法求解模型。结果表明,算数交叉算子(ACO)混合模拟二进制交叉算子(SBX)的收敛时间较单一SBX算子缩短11.48%,较单一ACO算子缩短2.58%;其中混合算子SBX-ACO求得的解集质量更好,对应评价指标世代距离(GD)值(8.13×10^(-4))、反世代距离(IGD)值(3.1×10^(-4))为所有计算方案中最小。优化调度模型求解的供水方案中两库补水量比不优化条件下的补水量减少11.5%。在计算效率及解集质量上综合验证了所提出的改进算法的有效性,同时为区域水资源优化调度提供科学依据。

摘要：折叠纸盒与粘贴纸盒各有其优缺点,提出几种将2种纸盒的优点结合的新型创意纸盒,采用破坏方法进行实验设计,将粘贴纸盒设计成可折叠结构,分析其结构方案图,并制作出其实物,为用于礼品包装的高端纸盒设计与制作提供一种新思路。

摘要：An US woman soldier and an Iraqi medical student were given a voice to their feelings in Helen Benedict’s Iraqi war Narrative Sand *** was the first time war stories had been told by two women from different ***-narrator Kate Brady,a female American soldier,tells the story about how she tried to be an independent woman respected in American society by the way of being a female soldier,but failed in the *** thesis focuses on Kate’s narration and analyzes her ethical choices from the perspective of Ethical Literary *** probing into the ethical situation Kate faces,and exploring the ethical conflicts among rational will and natural will on Kate,this thesis attempts to reveal what led to Kate’s ethical choices and caused her ethical confusion,and more importantly,what made her dreams shatter.

摘要：Aim To develop a method to estimate population pharmacokinetic parameters with the limited sampling time points provided clinically during therapeutic drug monitoring. Methods Various simulations were attempted using a one-compartment open model with the first order absorption to determine PK parameter estimates with different sampling strategies as a validation of the method. The estimated parameters were further verified by comparing to the observed values. Results The samples collected at the single time point close to the non-informative sampling time point designed by this method led to bias and inaccurate parameter estimations. Furthermore, the relationship between the estimated non-informative sampling time points and the values of the parameter was examined. The non-informative sampling time points have been developed under some typical occasions and the results were plotted to show the tendency. As a result, one non-informative time point was demonstrated to be appropriate for clearance and two for both volume of distribution and constant of absorption in the present study. It was found that the estimates of the non-informative sampling time points developed in the method increase with increases of volume of distribution and the decrease of clearance and constant of absorption. Conclusion A rational sampling strategy during therapeutic drug monitoring can be established using the method present in the study.

摘要：Apocalypse Now is a 1979 American epic war film set during the Vietnam War, directed and produced by Francis Ford Coppola. It was originally adapted from the novella Heart of Darkness （1902）, which was written in the colonial era. Apocalypse Now Redux （2001） is a refined version of the 1979 edition. In previous researches, most scholars only focused on either of the two adapted versions in terms of thematic discussion and narrative analysis, which have ignored the significance of the evolution of the film and the changing historical contexts. Accordingly, on the basis of narrative theory and cultural study, the thesis makes a narrative analysis of the evolution of Apocalypse Now Redux （2001）. It indicates that through some newly-inserted narrative elements in Apocalypse Now Redux （2001）, more attention is paid to minority groups, darkness in war and media quagmire, which is related to different historical and political contexts and endeavors to remind the American public of the harsh lesson of Vietnam War in the 20th century. However, efforts to restraint the war seem to be ineffective, which is fully exemplified by Iraq War in 2003

摘要：现代工业的迅速发展带动了检测与控制技术的日益更新,同时对重量检测控制仪的安全性和可靠性也提出了更高的要求,为此设计了一套新型的重量检测控制仪。该检测控制仪主要由信号采集和显示控制两部分组成,其中信号采集部分用于采集、传输物体重量信息,显示控制部分则主要显示重量数据,并输出相应的状态控制信号,超重时能够自动地实现自我保护。文中对新型重量检测控制仪的检测原理和控制方法进行了研究,设计了检测控制电路模型和程序流程图,并进行了相关实验。结果表明:新型重量检测控制仪能够准确地实现重量检测和超重保护功能,且具有较好的性能指标。

摘要：目的实现玩具类产品的机械运动机构的纸质化。结合纸材料的力学特性,探索纸材料应用于机械产品制作的可行性,以及基于纸材料的机械零件结构的设计方法。方法依据纸材料本身的特性,结合机械运动机构的传动方式,思考纸质机械机构设计的方式,总结出转动副、移动副、齿轮等各类典型机械运动机构纸质化设计方法,在实现运动功能的基础上确保运动零件的力学强度。同时以纸质齿轮设计为例,利用CorelDraw作为二次开发平台开发插件,降低纸质机械机构设计的操作难度。结论以机械玩具产品为案例,对纸质材料力学特性的机械机构设计方法进行实践,论证了低成本机械玩具创意设计方法的可行性,为机械产品创意设计探索了新的材料选择,也为纸产品创新发展提供了更多的设计概念。

摘要：Toni Morrison has a unique status in American literature. She is the winner of the National Book Critic Circle Award, the Pulitzer for Fiction and many other literary awards. She was granted the Nobel Prize for literature in 1993, thus becoming the first A^can-American writer to receive this honor. Her first novel The Bluest Eye （1970） tells the story of the bitter and tragic experience suffered by Pecola, a little black girl, and loss of black people＇s self-respect, confidence, value, and culture. The present paper, first of all, gives a brief introduction of the story Then the paper explores the root causes of Pecola＇s tragedy from two aspects： The cause of racial oppression and self-hatred, and the cause of the loss in her independent consciousness. The paper concludes that Pecola is the victim and scapegoat of racial oppression, self-hatred and the loss of her independent consciousness existing in the black community

摘要：综合叙述了目前人们为提高空间行波管收集极的散热性能而在其材料的选取、接触热阻的考虑和散热器设计方面所进行的研究,并给出了一些建议。

摘要：随着越来越多的外国公司进入中国和中国公司进军海外,广告翻译的重要地位和作用日显突出。在广告翻译中,译者应在充分认识广告本质的基础上,从整体上把握和进行广告语翻译,准确体现广告的营销意义,充分表现广告的创意特色,着力完成广告的跨文化融合,最终实现三者之间的有效统一。