最优化

In this method onlydihedral angles were selected as independent variales,a proper target function was minimized by loacl-to-globular optimization,thus these dihedral angles andthe coordinates of six kinds of the backbond atoms (N,HN,Cα,IIα,C′,0) were calculated.

这种方法把肽平面之间的二面角当做独立变量，通过从局部到整体逐渐最优化的方法使适当构造的目标函数最小，计算出这些二面角，以及主链每个残基上六种原子N、H%%^^N%%^^、C%%^^α%%^^、H%%^^α%%^^、C′、O的空间坐标，绘出蛋白质分子的溶液三维结构图案，并成功地把这种方法编写成计算程序DISNMA，且以碱性胰蛋白酶抑制剂为标准结构，得到了很好的验证。

Analysis of the influence of particle size on property of colorants was analyzed. The method of optimizing and finalizing pigment and liquid composition in the system was discussed.

分析了粒径对色浆性能的影响，讨论了体系中颜料与液态组分的最优化确定方法。

Thirdly, the bookbinding equipment and the detent have been innovatively designed with Innovative Theory of Yan Hongsen. Four kinds of new bookbinding equipments and fifty-four kinds of new detents have attained. So a lot of the optimization design of the automatic bookbinding machine can be got.

三、运用颜氏创造性设计法，对上、下装订机构和制动器进行创新设计，共获得四种新型的装订机构和五十四种新型的制动器机构，为多方案的最优化设计奠定了基础。

On the basis of analysing the indetermination factors affecting the evacuation start time,studying the main parameters on human evacuation motive ability,and considering the queuing characteristic and multi state phenomenon involved in evacuation performance,mathematical model on the human evacuation behavior in fire was set up.Based on net work theory and relational data base technology. The computer simulation on the optimum of human evacuation routes was realized on Mapinfo platform. This simulation ca...

基于对火灾时影响人员疏散行动的开始时间的不确定因子的分析，以及对火灾时人员疏散行动能力的主要影响因素的研究，在综合考虑建筑物空间疏散性状的排队现象和多态现象的前提下，建立火灾时人员疏散行为的数学模型·利用网论和关系数据库技术，在Mapinfo平台上，实现人员应急疏散路线的全局最优化，实现对疏散出口群集疏散流动规律的预测和评价·其研究成果，可以为建筑物性能化防火设计和应急疏散计划的制定提供科学的参考依据，防止群集事故的发生，减少群集事故的损失

In the study, SD2000 spectrometer is applied to obtain radiation spectrum of flame within wavelength 480-1100nm, from which flame temperature and monochromatic emissivity are derived by Newton Raphson non-linear method and Levenberg-Marquart modeling method.

在该方法中，采用SD2000型光纤光谱仪测量火焰在可见光（480-1100nm）波长范围内的火焰的辐射光谱，结合Newton-Raphson非线性迭代算法和Levenberg-Marquardt最优化算法，得到火焰温度和单色辐射率变化规律。

In the study, SD2000 spectrometer is applied to obtain radiation spectrum of flame within wavelength 480-llOOnm, from which flame temperature and monochromatic emissivity are derived by Newton Raphson non-linear method and Levenberg-Marquart modeling method.

在该方法中，采用SD2000型光纤光谱仪测量火焰在可见光(480-1100nm)波长范围内的火焰的辐射光谱，结合Newton-Raphson非线性迭代算法和Levenberg-Marquardt最优化算法，得到火焰温度和单色辐射率变化规律。

The mathematical correlation model of heating surface area and flue outlet temperature has been established,and the best flue temperature at furnace outlet upon condition that the heating surface area is minimized has been obtained by optimization.

建立锅炉受热面积与炉膛出口温度的数学关联模型，并通过解的最优化处理得到锅炉最少受热面积下的最佳炉膛出口温度。

The paper is based on wave resistance, which is one of bases in ships total resistance, is considered the friction resistance coefficient of the equal fiat panel, replacing the friction resistance with "1957 international ship mold experiment pond converting formula of the solid ship- ship mold " to set up the total resistance, and is worked to use the model of fore part, half part, and whole part of ship for the optimization.

本文基于兴波阻力(中、高速船舶的兴波阻力在船舶总阻力中占有相当的比例)数值计算：考虑相当平板摩擦阻力系数，将摩擦阻力用&1957年国际船模试验池实船-船模换算公式&简化来构建摩擦阻力和兴波阻力的总阻力公式；采用最优化计算方法分别对船首部、前半体及整体船型进行理论优化设计的探讨。

Keywords gas pipeline;control system;optimization;west-to-east gas pipeline;support vector machine

西气东输；输气管道；控制系统；最优化；支持向量机

The passage, based on the theory of cognitive development, construction and system science, by using the ways of action research, literature search and investigation, states that the Geometers sketchpad can achieve an optimal outcome in helping to teach physics, help to work out the difficult problems, and help to develop students' ideation.

本文以认知发展学说、建构主义理论、系统科学理论等为理论依据，运用行动研究法、文献资料法、调查法等研究方法，认为运用几何画板辅助物理教学可实现物理教学过程的最优化，能有效突破物理教学的难点、培养学生的物理思维能力。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。