查询词典 improvement

Has analyzed the original network analysis situs existence question, as well as the new network is opposite in the old network improvement.

分析了原有网络拓扑存在的问题，以及新网络相对于旧网络的改进。

Based on the analysis of Laoshan District, the research was carried on including water environment capacity, water allocation and forewarning evaluation. Hydraulics, System Dynamics and analytic hierarchy process are applied in the research. The main contents and conclusions are as following:1. With economic development, urbanization and continuous improvement of people\'s living standards, the demand of water resources in Laoshan District will continue to increase dramatically.

本文在分析青岛市崂山区水资源利用现状的基础上，运用水力学、系统动力学和层次分析法，对区域水环境容量、水资源优化配置和水资源复合系统安全预警进行了系统的研究，主要得到以下结论：1、随着经济建设、城市化的发展和人民生活水平的不断提高，崂山区水资源需求量正在并将继续急剧增加，且由于区域水资源时空分布不均衡，新水源开发、客水调入难度大，部分地区已出现水资源紧缺状况。

The basic approach of protecting people from being hurt or killed in an accident is to improve crashworthiness of vehicles. This paper starts with discussing theories and methods for vehicle passive safety design, which included experiential methods, analytic methods, multi-body dynamics methods, crash test methods and the finite element method. Emphasis will be paid to the basic FEM theories and algorithms of impact problems. Topics discussed include the governing equation, element discretization, hourglass control, time integration, material model, shell element algorithms and contact-impact algorithms. For more reliable simulation results, this paper then conducts study on how to accurately get material model parameters by combining the FEM method with experimental method, and develops relevant material test machine and parameter calculating software. Based on that, basic typical impact simulation and test validation study are conducted. On the basis of the above work, the paper studies the thin-shell structures'crashworthiness, which was affected by the following factors: spot-weld features, shell thickness, cross-section and pre-deformation. As to vehicle parts'crashworthiness, the paper conducts simulation study of designing energy-absorbing steering system and adaptive airbag system. A practical energy-absorbing steering wheel is designed as an example. In further depth research, the paper suggests several inverse quantificational methods for vehicle crashworthiness design based on the ideal crash characteristics. The above theories and methods are applied with good results through several practical vehicles' crashworthiness design and improvement.

文中对汽车碰撞安全性的设计理论和方法进行了归类和总结，其中包括经验法、解析法、多刚体动力学法、试验法以及有限元方法等；重点介绍了碰撞有限元法的基本理论和有关算法，涉及到有限元求解控制方程、单元离散、沙漏模态控制、时间积分、材料模型和应力修正、薄壳单元算法以及接触碰撞界面算法等，探讨了有限元计算中的材料模型参数获取技术，开发了相应的材料试验装置及材料模型参数反求软件，在此基础上进行了基本的碰撞仿真算例和试验对比研究；文中通过应用有限元方法研究了薄壁构件的碰撞吸能特性，指出了设计薄壁吸能构件时需要考虑的几个主要影响因素，即焊点、壁厚、横截面和预变形等；在关于车辆部件的碰撞安全性能设计中进行了吸能转向机构和自适应安全气囊的仿真研究，提出了吸能转向机构和自适应安全气囊的仿真研究方法；文中最后探讨了整车碰撞性能的设计与改进方法，提出了以理想碰撞特性为目标，采用分段加速度或者根据碰撞时间进行设计的反推设计法、部件吸能仿真优化设计法等量化设计方法，并通过综合应用文中所讨论的相关技术进行了整车碰撞性能的设计与改进实例研究，所选定的车型是大众化的普通轿车和碰撞安全性基础较差的微型面包车，研究结果表明，本文所提出的设计与改进方法是适用而有效的，具有重要的工程实用意义和价值。

For general engineering problems, the analytical transformation rules are sufficiently accurate to design the similar cascade profile, but further improvement of the precision is limited by the one-dimensional assumption of the transformation, therefore an inverse blade design method—influence matrix method, based upon the surface vorticity model, is developed to improve the precision effectively.

进一步讨论了在具有相同表面压力系数分布的情形下，进口马赫数对附面层发展的影响，发现在一定条件下，只要表面压力系数的分布相似，则叶面附面层发展情况及无量纲气动力参数也将存在相同精度的相似，这一结论使我们在进行相似流场模拟的模型设计中，得以只进行无粘流场之间的相似变换，从而大大减少相似模型设计的工作量和复杂性。

The application of the collocation also contributes an improvement of more than 10% for anaphora resolution.

而基于搭配的特征提取的使用对于整个系统的性能都有超过10%的提高。

Merit Effect: The eye a skin of comprehensive improvement, aim at the eye a problems, such as anasarca and thin crease...etc. effectively, provide the multi-function nursing for a delicate skin of eye, the valid cancellation years trace.

功效：全面性改善眼周肌肤，有效针对浮肿、黯沉、细纹等眼部问题，为眼部幼嫩肌肤提供多功能护理，有效消除岁月痕迹。

The yield, quality, resistance and chromosome characteristics of the hybrids were analyzed, and the improvement of the grasses using gene introgression, androgenesis and genetic modification methods was introduced. The latest advance in GISH, genetic map construction and QTL of Festulolium hybrids were described here.

本文总结了黑麦草羊茅杂种高产、优质、抗性强的优势；分析了杂种染色体配型特点；重点介绍了通过基因渗入、雄核发育和转基因手段改良牧草的方法；对黑麦草羊茅杂种基因组原位杂交、分子标记和遗传图谱建立、数量性状位点分析等分子遗传学的最新研究进展进行了综述。

In order to solute some quality questions of angle steel for iron tower productive process,adopt various effective methods of technical and managerial improvement,result give rise to overall quality of angle steel in all directions,meet consumer's different needs,and give rise to product competition in market place.

针对铁塔角钢生产过程中存在的质量问题，采取多项有效技术改进措施，全面提高铁塔角钢的综合质量，满足用户要求，提高产品市场竞争力。

From the angle of the soil enzymes,lead to mild zinc and copper pollution improvement, and the copper pollution repair effect is not significant.

从土壤酶角度看，铅对轻度锌和铜污染有改良作用，而对铜污染修复效果不显著。

TCM is closely related and promotes each other with Chinese traditional culture from cultural improvement;multi-science standard put forward by Polo.Sajade is defined to TCM from the angle of respecting science;TCM functions importantly to keep ecological balance and prevent land sandization from the angle of preserving multi-biology;TCM sponsors "beneficiary"for humane treatment;thus we are fully convinced to prove TCM's important social value and practical meaning.

从文化进步的角度对中医药与中国传统文化紧密联系，相互促进；从尊重科学的角度对中医药符合保罗·萨迦德提出的多元科学划界标准；从维护生物多样**的角度对中医中药在保持生态平衡，防止土地沙化领域起着重要作用；从人道的角度：中医药提倡"仁"术，人**化治病；因此我们有充分的理由证明中医中药具有重要的社会价值和现实意义。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。