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To give the definition of the mass concrete and to concrete\'s cracks together with practical meanings of control ,and give a brief review on the research in the field at home and abroad, at last, methods to control temperature crack of the mass concrete from several aspects such as design measures,concrets material, construction schedules.etc are summed up; To explain the physical mechanics of the concrete and computing methods-Difference Method and Finite Element Method, and illustrate the application of their specific methods repectively;Several temperature factors that can influence the temperature stress of mass concrete baseplate are analyzed. The influence degree of temperature factor can be got through the ANSYS simulation computation the control of temperature can control the temperature stress, consequently control the temperature crack of mass concert baseplate; through the influence of the crack resistance ability of mass concrete baseplate which takes the reinforcement as a part is analyzed. By ANSYS simulation, the best suited volume ratio of reinforcement is found out, at same time the layout of reinforcement with the same volume ratio can also affect the resistance ability of mass concrete baseplate. Sum up of above analysis, anti-crack function of steel bar in early mass concrete baseplate is obvious, so it\'s necessary to consider beneficial effect of construction steel bar in research of temperature control on mass concrete baseplate.

本文先容了大体积混凝土及混凝土裂缝的基本概念，对国内外在这个领域里的研究现状作了扼要叙述，并从结构设计、混凝土材质、施工措施等方面总结了大体积混凝土温度裂缝控制的方法及防止措施；阐述了混凝土的基本物理力学性能，总结了大体积混凝土温度计算的方法——差分法和有限元法，并分别举例说明其具体应用的方法；分析了影响大体积混凝土底板温度应力的几种温度因素，利用ANSYS模拟计算，得出了每种因素的影响程度，通过分析提出了在这几种温度影响因素下如何通过控制温度以达到控制温度应力从而来控制裂缝的具体建议；针对大体积混凝土基础底板中配筋的不同对混凝土底板抗裂能力的影响不同，利用ANSYS进行模拟分析，得出底板中最合适的体积配筋率，同时分析了在相同体积配筋率下钢筋的具体布置对大体积混凝土基础底板抗裂能力的影响，分析表明，配置钢筋对混凝土结构的开裂阻止作用明显，在研究大体积混凝土温度裂缝题目时，要考虑钢筋在其中的有利作用。

NASA climatologist on the 26th, published in "Journal of the National Academy of Sciences," published research reports that the Earth's temperature has climbed to several thousand years to the highest level, with the maximum temperature difference over the past millions of years in less than 1 degree Celsius.

美国宇航局的气候学家在26日出版的《国家科学院学报》上发表研究报告说，地球温度已爬升到几千年来的最高点，与过去百万年最高温度相差在1摄氏度以内。

In the evaluation of cash flux stability, I take the free cash flux as variable and get the difference coefficient of FCF in N years, then to judge the cash flux stabilization degree of the targetenterprises.

在现金流量稳定性评价中，本文以自由现金流量为变量，求出N年现金流量的差异系数，来判断目标企业现金流稳定程度。

The concrete work and main contribution are as follows:(1) The index indicating transfer capability homogeneousness is defined, and the new terms like homogeneous grid, grid according with economic flow are put forward. These new concepts describe the degree in which transfer capability is utilized, and they provide the standard for ideal grid whose transfer capability and power generation dispatching economy are in phase. So, new idea is introduced in transfer capability analysis.(2) The multi-objective function with generation cost and transfer capability homogeneousness weighted is constructed. The relationship between system existing generation dispatching and transfer capability is revealed through comparative analysis between security economic dispatch and security homogeneous dispatch, and the variation rule analysis between generation cost and transfer capability homogeneousness with the change of weighting coefficient.(3) Example analyses demonstrate that the difference between specific power system with ideal instance can be identified effectively using the above concepts and method.

具体工作和贡献主要体现在：(1)定义了衡量电网输电能力均匀性分布的指标，提出均匀电网、符合经济流电网的新概念，以描述电网输电能力被利用的程度，并给出输电能力和发电调度经济性相协调的理想电网标准，在输电能力分析评判领域引入了新观点；(2)构造了发电费用与输电均匀性加权的多目标函数，通过对安全经济调度与安全均匀调度的对比分析，以及权系数变化过程中发电费用与输电均匀性的变化规律分析，揭示了系统现存发电调度与输电能力之间的依赖关系；(3)大量分析表明，利用上述概念和方法可有效识别系统在特定模式下与符合经济流电网的偏差程度。

It will take 51 to 63 days for second generetion of armyworm to develop from egg to larva, pupa, and imago in Dewu region. 5. There is evidently difference of armyworm imperilment degree in different altitude.

幼虫发生期在6月中下旬至7月中下旬，乐民发生期比德坞早3-5天；第二代粘虫在德坞地区完成从卵、幼虫、蛹和成虫一个世代需经历47至59天。

In the layout analysis, we chose a bottom-up algorithm based on nearest neighbor connect-strength and line confidence to segment the image area, table area and text area; In the printed Chinese character recognition module, we calculate the degree of incorporative difference to match the character, also define a refusal class which could orientate the mathematical expression automatically; Put the expression into the formula processing module, then we chose the character segmentation method based on connectivity and the template match method to recognize the character in the mathematical expression and at last we used the structure analysis based on the character to transform the two dimension formula into one dimension Word EQ expression.

在版面分析中，采用基于最近邻连接强度和行列可信度的自底向上的版面分析算法，分割出图像区域、表格区域和文本区域；在汉字识别模块中，采用回溯切分方法切分出字符段，计算合并差异度与特征字典比较，通过引入汉字的拒识类，从而实现了公式的定位；将定位后的数学公式送入公式识别器，在公式识别器中采用基于连通域搜索的字符分割方法和模板匹配方法对字符识别，对于识别出的字符，再采用基于特征字符的结构分析方法，从而将二维的数学公式转化为一维的Word EO域语句。

Aim at ubiquitous parallel multi-reservoir structure in our countrys basin, the universal objective function including coefficient Bi embodying a spatial significance difference at different flood control points and variable ai denoting a selection of scheduling mode is established, which provide a valid intervenor interface for flood control consultation decision. According to the real-time requirement, a model of reservoir storage allocation is proposed, which embody basic idea of phasic compensation. Passing the dynamic correction to cut down the disadvantageous influence that indetermination result in on the certain degree, joining together the step alternation solving method, this model can maximally consider bias of decision makers, ensure the rationality and practicability of the solutions.

针对我国流域中普遍存在的并联库群结构，论文提出包含不同防洪点重要性的系数β_i和选择调度模式的变量α_i的通用目标函数，为防洪会商决策，提供了有效的人工干预接口，根据实时性要求提出动态分配防洪库容的库容分配方法，体现了相机补偿的基本思想，通过动态修正在一定程度上可以削减不确定性造成的不利影响，结合分步迭代求解技术，能最大限度体现决策者的偏好，保障解的合理性和可操作性。

These researches analyzed the objective reason which the kindergartner job burnout produces. However these factors cannot explain such phenomena: in similar working conditions, why different teachers personally meet in the occupation tired degree side has distinctness difference.

这些研究对研究职业倦怠有一定作用，然而这些因素并不能解释：为什么类似的工作环境中，不同的教师在职业倦怠程度方面会有很大的差别。

Degree and form of intensive management of flue-cured tobacco production in Hunan province were discussed on the basis of analyzing monomial proportion between input and output, proportion and difference of living labor, materialized labor and technology in total supplementary input, and final economic benefits as well as characteristics of tobacco products.

根据湖南省烤烟生产集约经营中单位种植面积上的投入产出量，活劳动、物化劳动和技术三者的单项投入在总的追加投入中所占比重和相互间配比的差异，以及最终形成的经济效益的高低，探讨了湖南省烤烟生产集约经营的评价指标。

Objective: To study the difference of anxiety and depression of medical patients in polyclinic in aspect of sex, age, educated degree and different medical department.

目的：比较综合医院内科病人焦虑抑郁情况在性别、年龄、文化程度及就诊科室等方面的差异。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。