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Experiments of flow conductivity closure stress of typical propping agent are done, propping agent short-term flow conductivity alteration index is defined, by this, the relation between fissure short-term flow conductivity and closure stress, it is close to exponential relation. 4. Establishing the mathematical simulator of hydraulic fractured well's production in a steady state, finding the relation curve between dimensionless flow conductivity and fracture penetration coefficient by means of calculation and analyses, it is the basis of hydraulic fracture. 5. Expatiating the importance of optimized hydraulic fracturing design in reservoir engineering, advancing the optimizing design method, fracture dimension can be calculated easily when the physical parameters are known. 6. Production rate decline standard curve of vertical fractured wells is achieved by mathematical simulation, when the flow pressure is certain , by asymptotic analyze, this decline curve is close to exponential relation.

完成了国内外典型支撑剂的导流能力闭合应力影响实验,在数据分析中定义了支撑剂短期导流能力变异系数,并由此发现裂缝短期导流能力随闭合应力变化的近似符合指数关系式; 4 建立了一种水力压裂井稳态产能的数学模拟器,计算分析找到了最优无量纲导流能力与裂缝穿透比之间的新型关系曲线,它是水力压裂优化设计的基础; 5 阐述了水力压裂油藏工程优化设计的重要性,提出了优化设计方法,在已知支撑剂物性参数条件下可简洁计算最优裂缝尺寸; 6 数学模拟给出了垂直裂缝井产量递减标准曲线,在井底定压条件下通过渐近分析表明,该递减曲线满足指数关系式。

Based on decomposition-coordination model of an electric power system,the general augmented Lagrange method and auxiliary problem principle are adopted to form iterative distributed transfer capability computation framework,in which the influence on the internal system exposed by external system is considered through exchanging the information of boun.

该方法通过分解-协调模型实现互联电网的解耦,采用增广拉格朗日法和辅助问题原理实现输电能力按地理分区,形成一个迭代形式的分布式输电能力计算框架,迭代中通过交换边界节点信息将互联外网信息反映到各分区的计算中,各地的子网络计算相对独立。

Based on decomposition-coordination model of an electric power system, the general augmented Lagrange method and auxiliary problem principle are adopted to form iterative distributed transfer capability computation framework, in which the influence on the internal system exposed by external system is considered through exchanging the information of boundary nodes.

该方法通过分解-协调模型实现互联电网的解耦,采用增广拉格朗日法和辅助问题原理实现输电能力按地理分区,形成一个迭代形式的分布式输电能力计算框架,迭代中通过交换边界节点信息将互联外网信息反映到各分区的计算中,各地的子网络计算相对独立。

The reason is many sided: 1 student and parent think " miscalculate " irrespective, as long as next time attentive dot went. The student allows to use a calculator in 2 education, the student had to the calculator depend on, often abandon when encountering seemingly complex calculation think, use a calculator directly, for instance 618, do not know to change brief into 13, achieve a result with the calculator directly however 0.33. Phase of 3 high school trains a student " put forward, analysis and the ability that solve a problem " the demand is higher and higher, of the train of thought that inscribes to solution in classroom education, thoughtway many somes more tuitional, and to operation ability, because the student has certain base, loosened with respect to some then. 4 emphasizes the training of all sorts of thinking ability overly, the training of operation ability has the suspicion that should try education it seems that, this also is one of reasons. The operation in 5 maths, no matter be numeric computation, return be algebraic type to be out of shape figure, photograph of the train of thought that inscribes with new knowledge, new solution, skill is compared and character, appear more as dry as a chip, the student does not have interest.

原因是多方面的:1学生和家长都认为"算错了"没关系,只要下次细心点就行了。2教学中答应学生使用计算器,学生对计算器有了依靠,在碰到貌似复杂的计算时往往舍弃思索,直接用计算器,比如618,不知化简成13,而是直接用计算器获得结果0.33.3高中阶段培养学生"提出、分析和解决新问题的能力"的要求越来越高,课堂教学中对解题的思路、思想方法的讲授多一些,而对于运算能力,因为学生都有一定的基础,于是就有些放松了。4过分强调各种思维能力的练习,运算能力的练习似乎有应试教育的嫌疑,这也是原因之一。5数学中的运算,不管是数值计算,还是代数式的变形演算,和新的知识、新的解题的思路、技巧相比较而言,显得比较枯燥,学生没有喜好。

The software system not only performs common process capability index computation, common distribution function computation and curve fitting, but also has the function especially for computing process capability index for non-normal distribution and multivariate.

该软件不仅包含常规工序能力指数的计算,通常遇到的分布函数的计算与拟合,而且具有非正态和多变量工序能力指数计算两个重要模块。

The results indicated that both binary interactive parameters of water/isobutanol system from this work and the parameters of water/ethanol from literature can be used to precdict the liquid-liquid equilibria of water/ethanol/isobutanol. But the parameters of ethanol/isobutanol from the literature were not appropriate for the prediction. Furthermore, the model parameters from 30℃ can can be used to predict the liquid-liquid equilibria under 35 ℃. The model parameters of water/isobutanol are independent on the temperatures, so constant parameters irrelative to temperature can meet prediction accuracy. Othmer-Tobias/Bancroft equation was also used to fit the liquid-liquid data of water/ethanol/isobutanol system, but it didnt possess the performance of predicting the liquid-liquid equilibria.The partition coefficients of dipotassium glycyrrhizinat were determined in the liquid-liquid two-phase system of water/ethanol/isobutanol and corrected by experiential equation.

结果表明:由本文的二元液液相平衡实验数据关联得到的水+异丁醇体系的相互作用参数和文献上由二元气液相平衡数据关联得到的水+乙醇体系的相互作用参数都具有预测三元液液相平衡关系的能力,而文献上由二元气液相平衡数据关联得到的乙醇+异丁醇体系的相互作用参数不具有预测三元液液相平衡关系的能力;可以用从30℃三元液液相平衡数据关联回归得到的模型参数来预测35℃时的液液相平衡关系;水+异丁醇的相互作用参数与温度关系不是很密切,计算时取与温度无关的常数即能满足关联精度要求;Othmer-Tobias和Bancroft经验方程可用于水+乙醇+异丁醇两相体系的液液相平衡关系的关联计算,但这类经验方法并不具有预测能力。

The thesis introduces the concept of standard wall to discuss the effect of hight width ratio to the out of plan endurability of wall so as to improve the calculation method of out of plan edurability analysis of wall,and further more expand this method to the calculation of out of plan endurability of wall limb and wall limb with wall column.

该文为考虑壁板宽高比对平面外承载能力的影响,引进标准壁板概念,完善了井塔壁板平面外承载能力计算方法。并将该方法推广于墙肢和带壁柱墙肢平面外承载能力计算。还研究了墙肢、壁板扣除翼缘及壁柱截面的内力转换问题。

After reviewing the transfer capability study history, on the lay of power system operation dispatching, this paper studies transfer capability calculation method and ATC decision-making mechanism under static constraints roundly and deeply from more general view. The concept of transfer capability and the intension of ATC under power market are raveled more and the transfer capability integrated estimation system is formed preliminarily.

本文在回顾、评述国内外关于输电能力问题研究状况的基础上,在电力系统运行调度层面,从更广义的角度出发,对静态条件下输电能力的计算和ATC的决策进行了全面、深入的研究,在输电能力计算算法和ATC决策机制研究方面取得相应进展,进一步清晰了电力市场环境下输电能力的概念和ATC的内涵,初步构建了适应市场经济规律的输电能力综合评价体系。

The commonly-used capacity calculation approaches for ramp junctions are mostly based on the American HCM method, It had been approved that the headways for vehicles following the Weibull distribution function at on-ramp junctions in urban freeway system. The paper examined the critical headway and following time by the modified drew method and the survey traffic flow data on-site. The gap-acceptance capacity calculating model was developed for on-ramp junctions of urban freeway, and the numerical integration method was used to solving the model. Finally, the capacity values were obtained in condition of different mainline design speeds and different acceleration lane lengths.

针对目前国内外匝道连接段通行能力计算以美国HCM为主的现状和不足,研究发现城市快速路入口匝道连接段车头时距服从Weibull分布规律,利用改进的Drew方法及实际现场调查交通流数据确定了临界车头时距和随车时距,建立了城市快速路入口匝道连接段通行能力的间隙接受计算模型,并利用数值积分法进行计算和求解,从而得到了主线不同设计速度及不同加速车道长度条件下的城市快速路入口匝道连接段可能通行能力值。

It enumerates the restrictive terms in the calculation.; It brings forward different kinds of calculating strategy. It also designs the wagon flow track table and transport capacity computative table of the junction terminals.

本论文主要研究铁路枢纽通过能力计算方法理论和用计算机来实现的问题,具体内容为:1 论述了铁路枢纽通过能力的基本概念,枢纽通过能力的组成和影响枢纽通过能力的因素,这些是计算铁路枢纽通过能力的基础。;2 分析了枢纽通过能力计算方法理论。

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But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。