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The origin、 development and present state of the container ship2. The deformation characters and collapse mode of the container ship3. The basic theory of thin-walled structural mechanics: The bending of the thin-walled beam; The unconstrained torsion of the thin-walled member bar; The constrained torsion of the thin-walled member bar with opening; The constrained of the thin-walled member bar with closed port.4. The calculation of the warp stress in the container ship based on the thin-walled structural mechanics theoryModeling of the hull ladder calculation based on referred mechanics theories of thin-walled member bar, calculation of crankle character of the each section, such as sectional coordinates、 Free twist shear flow、 secondary shear flow、 bend shear flow and so on.

本文主要包括下述六个方面的内容: 1 集装箱船的起源、发展和现状 2 集装箱船变形特征和破坏形式 3 薄壁结构力学的基本理论◇薄壁梁的弯曲;◇薄壁杆件的自由扭转;◇开口薄壁杆件的约束扭转;◇闭口薄壁杆件的约束扭转 4 利用薄壁结构力学理论计算集装箱船的翘曲应力建立船体阶梯计算模型,利用薄壁杆件力学中相关理论,求解各断面单元的弯扭特性,包括:扇性坐标、自由扭转剪流、二次剪流、弯曲剪流等。

The new calculation method would replace the traditional calculation method for the precise calculation of crankshaft strength.

新的计算方法将取代传统的计算方法用于曲轴强度的精确计算。

Firstly, the conception of network system reliability and method of calculation reliability for network system are introduced in the thesis. Secondly, calculation method analysis and detailed realization of searching node method and method of calculation of disjoint form minimal path sets are the emphases of this paper.

本文首先介绍了网络系统的概念和网络系统可靠性分析的相关概念及方法,然后着重于本文要采用的节点遍历法和最小路集不交化方法做了算法分析和具体实现,最后将计算程序简单界面化并加以实际应用。

Studied present measuring methods" advantages and disadvantages, and presented the necessity and importance of researching propellant transient heat transfer.2.according to 130 and aeronautic 90 rocket projectiles" structure, analysed and acquired physical and mathematical models for propellant transient heat transfer, also designed propellant temperature field simulation units for test.3.acquired discrete transient heat balance equation and temperature calculation program, and gave contrasting curves between experimental temperature values and program calculating temperature values as well as maximum errors and average square root errors between them.4.by programs based on the first class boundary condition, worked out temperature distribution in propellant temperature field simulation units at different time, analysed temperature field distribution law and main elements affecting heat transfer, acquired propellant mass weighted average temperature and one at the half position of propellant maximum thickness as well as maximum errors and average square root errors between them.5.established transient heat transfer mathematical model and temperature calculation program for the third class boundary condition, drew contrasting curves between temperature experimental values and calculation values and gave maximum errors and average square root errors between them, got temperature distribution in the simulation unit at different time and main elements affecting heat conduction, figured out propellant mass weighted average temperature and one at the half position of propellant maximum thickness as well as maximum errors and average square root errors between them.

分析了现有测试方法的优缺点,提出了研究推进剂瞬态导热的必要性和重要性。 2。根据130和航90两种火箭弹的结构,分析得到了推进剂传热的物理模型和数学模型,设计了推进剂温度场模拟实验装置。 3。得到了离散形式的瞬态热平衡方程和温度场计算程序,给出了实验温度与程序计算温度值的对比曲线及其最大偏差与均方差。 4。利用程序求出了第一类边界条件下、不同时刻推进剂温度场模拟装置中的温度分布,分析了温度场的分布规律和影响传热的主要因素,求出了推进剂质量加权平均温度和最大肉厚1/2处的温度时间曲线并给出了两者之间的最大偏差与均方差。 5。建立了第三类边界条件下的瞬态导热数学模型和温度计算程序,求出了温度实测值与计算值的对比曲线并给出了两者之间的最大偏差与均方差,得到了不同时刻温度场模拟装置的温度分布与影响导热的主要因素,求出了推进剂质量加权平均温度和最大肉厚1/2处温度及两者之间的最大偏差与均方差,讨论并确定了能代表130和航90推进剂温度的特征点的位置。

To introduce the method of matrix, the optical system design in detail in the optical polarization Jones matrixes of application, On the other hand, the geometrical optics lens, the relations between the theoretical calculation, and the calculation results of calculation method and the results are compared, consistent, this method is feasible and reasonable.

将矩阵方法引入光学系统的设计中,详尽地给出在偏振光学中琼斯矩阵的应用;另一方面,对几何光学中的透镜间的关系进行理论计算,并把计算结果与普通的计算方法做出的结果比较,它们是相吻合的,说明此方法是可行的,合理的。

The first part of the whole, including: the main-scale displacement and the identification, map type, weight and general layout of calculating the focus of the plan is formally established; into the second performance, including: self-transformation and-line mapping, static water Calculation and static hydraulic curve, the stability of floating state calculation; third dip into the calculation; summed up into the fourth part, based on an evaluation of the design, lessons learned, the comprehensive knowledge.

第一部分为总体部分,包括:排水量及主尺度的确定、型线图、重量重心计算和总布置正式图的确定;第二部分为性能部分,包括:仿式变换与型线图绘制、静水力计算及静水力曲线图、稳性浮态计算;第三部分为大倾角计算;第四部分为总结部分,为本次设计作出评价,总结经验教训,综合所学知识。什么专业的?搞这么复杂的东西。报酬就免了,给了我也拿不到。

The 3-dimension solid model of the 8th turbine rotor blade of some type aero engine is constructed in software UG, and the numerical calculation region of stream field in ECM is set up in special flow field calculation software FLUENT based on the principle of hydrodynamics. The distribution of 6-dimension forces is got after numerical calculation, and the equation between 6-dimision forces and interelectrode gap is set up.

基于流体力学原理,用UG造型出某型航空发动机8级涡轮转子叶片,用流场计算软件FLUENT构造电解加工中叶片的流场计算区域,经数值计算得到六维力的分布,并从理论上建立六维力与间隙之间的关系方程式,为后续试验研究提供了参考依据。

Puts forward the calculation method of natatorium heat load, points out the problems in the domestic natatorium design standards and related calculation methods, and presents the calculation result of an actual project.

提出了游泳馆的热负荷计算方法,指出了国内游泳馆主要设计标准和计算方法所存在的问题,给出了实际案例的计算结果。

In this paper,the importance of capital assets in enterprise production and management and those of classified collection and perspicuity calculation are discussed.analysing and researching the capital assets with the EXCEL data processing function,It can solve the problem of capital assets accountant electric calculation and simplify the accountant calculation.

从固定资产在企业生产经营活动中的重要性着手,对固定资产的分类汇总、明晰核算进行了论述,用EXCEL的强大数据处理功能对固定资产进行分析研究,解决了固定资产会计电算化的问题,简化了会计核算工作。

The discharge calculation coefficient k,x can be used to the discharge calculation under the condition of fixed numerical value,solves some special demands in water power planning and design and similar calculation of unsteady flow in the pondage water power station.

马斯京根法流量演进系数K,x,在数值不变的条件下应用于河段短时段的流量演算,解决了水利水电工程规划设计中的一些特殊要求和水电站日调节不稳定流演进的近似计算问题。

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The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0,0.4,0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗,测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础,研究二值图像的形态分析算法,探讨最小结构元素的两种基本形态:膨胀和腐蚀;分析了数学形态学复杂算法的基本原理,把数学形态学的部分并行处理理念引入到家实际应用中。

Have a good policy environment, real estate, secondary and tertiary markets can develop more rapidly and improved.

有一个良好的政策环境,房地产,二级和三级市场的发展更加迅速改善。