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In order to know irradiant dynamic process we must have excitation crosssection of electron collision with molecule. Incident electron energy is inintermediate range. At low energy, there are several good methods thatcalculate electron collision with molecule for example Variation, R-matrix.

此时入射电子的能量已经达到中能,在低能范围内的电子与分子散射有许多好的方法如变分法、R-矩阵方法,在高能范围内利用Born近似等方法也能得到满意的结果,在中等能量范围的电子与分子碰撞则没有相应的成熟的方法,使用比较多的是密耦(Closing-Couple)方法,这种方法将相互作用势分为静态势、交换势、极化势,在耦合态的选取上比较自由,可以根据实际的问题及分子的特性选取耦合作用比较强的通道,这样既能保证精度又能减少计算量。

Methods:during the year 2003 to 2006,3298 patients with vaginal delivery received 2 kinds of skin preparations.retrospective study was conducted to investigate the effect of skin preparation methods on the healing of mediolateral episiotomy.rerults:there was no different effect on the wound healing of mediolateral episiotomy between the 2 kinds of skin preparation.conclusions:non-shaving method has no adverse effect on the sterilization of operation field in vaginal delivery.moreover it can save the time of nuring,lower the costs,ease the uncomfortable feeling .therefore,we consider the non-shaving method has advantage over the shaving one.the former is simple and effective which is an ideal way to simplify nursery procedure and spare nursery resource.

收集我院2003年至2006年间共3298例阴道分娩的产妇采用两种不同的备皮方法,观察两种备皮方法对会阴侧切伤口的影响进行回顾性对比分析。结果:两种备皮方法对会阴侧切伤口的愈合影响无明显差异。结论:不剃毛的会阴备皮方法对阴道分娩的手术野消毒无不良影响,并且能够节省护理操作时间、降低产妇费用、减轻产妇不适,所以不剃毛的备皮方法优于剃毛的备皮方法,不剃毛的备皮方式简单而有效,是简化护理工作程序及节省护理人力资源的理想办法。

In addition, our works also indicate that MC-ICPMS technique shows a good potential on Re-Os isotopic measurement. 2. A new method for the determination of low Re-Os abundances and ~(187)Os/~(188)Os in a natural rock sample by MC-ICP-MS has been established in our laboratory. Rock samples were digested in inverse aqua regia in sealed Carius tube for 24 hours at 230°C, then Os was separated from the matrix by CCl_4 solvent extraction, and further purification by microdistillation.

建立了Re-Os同位素样品的化学分离和纯化方法以及MC-ICPMS质谱测定方法:岩石样品的Re和Os化学分离方法是采用Carius管溶样法,结合四氯化碳萃取以及氢溴酸反萃取的方法分离出Os,最后是通过微蒸馏的方法纯化Os;利用阴离子交换树脂的方法分离纯化Re。

For the first time we synthesized nanoscale metal hydrides of lanthanum, neodymium, samarium, dysprosium, and ytterbium with high efficiency under mild condition by complexometric catalysis instead of traditional preparation at high temperature and high pressure. It is for the first time that we synthesized lanthanide organic compounds with catalysts or initiating agents at atmosphere and ambient temperature,and some of them are new compounds. Nanometric lanthanide metal powders are prepared by thermal decomposition of the compounds in vacuum. Differently from the traditional method, size of the products prepared by our method is less than 40nm, and the activity of the reaction is very high. They are pyrophoric at atmosphere. They can make some reactions without activity or low activity show extremely high activity .We investigated influent regulations of methods, conditions to scale and special surface.

我们首次成功地用络合催化等方法取代需在高温高压下进行的传统方法,在温和条件下高效率地合成出纳米尺寸镧、钕、钐、镝、镱的金属氢化物;首次在常压常温的条件下,通过催化、引发等方法合成镧系金属有机化合物,再将其真空热分解成功地制备了纳米尺寸的镧、钕、钐、镝、镱等金属粉末;与传统方法不同,这些方法得到的产品基本颗粒尺寸小于 40 nm,遇到空气燃烧,具有极高的化学反应活性,使原来活性很低甚至观察不到活性的反应大幅度提高反应速率和产率;考察了制备方法、制备条件等因素对晶粒尺寸、比表面积大小等的影响规律。

Most conventional methods for the extraction of substrate network were based on the use of frequency behavior of Y22 + Y21. However, we found that the feedback signal through the internal circuit elements makes the conductance of the substrate network underestimated while makes the susceptance of the substrate network overestimated. If conventional methods are directly performed on large area SiGe HBTs, a negative effective substrate resistance will be extracted. In the first part of the thesis, a new extraction method for the substrate network parameters of SiGe HBTs is proposed. When extracting the substrate network parameters, the feedback signal through internal circuit elements is considered. All the circuit elements of substrate network are extracted from Ysub instead of Y22 + Y21. The extracted substrate network parameters show a different bias dependence as compared to the conventional methods. By using a simple n+-p junction, we successfully explained the extracted bias dependent substrate network parameters. We developed a series linear regression equation to extracted the intrinsic circuit elements from the ABCD parameters. Compared with the conventional methods which extracted the circuit elements from Y-parameters or Z-parameters, the proposed method is much simple and easy to implement in the computer programs.

传统方法在萃取基板网路参数时,常常由所量得的Y22 + Y21来著手,但我们的研究发现,利用Y22 + Y21的频率关系来萃取基板参数时,基板网路的电导会被低估而基板网路的电纳则会被高估,另外传统基板网路参数萃取方法在萃取大尺寸元件基板网路参数时会得到负值基板等效电阻,以上的非理想效应皆因忽略部份信号会经由本质参数对基板网路做回授的影响,因此本论文中提出一个新的基板网路参数萃取方法,在萃取基板网路参数时考虑了由本质参数所回授的信号,并且由Ysub而非Y22 + Y21萃取基板等效电阻、基板等效电容及基板与集极空乏电容,成功的解决上述的一些非理想效应,所得到的基板网路参数与集极偏压的关系与传统方法所得的趋势相异,经由一个简单的模型成功的解释了所萃取得到的基板网路参数与偏压的关系,在萃取本质参数时,我们舍弃传统萃取方法中常用的Y参数或Z参数萃取方程式,而改用ABCD参数,并提出一系列的线性回归方程式,萃取所有的本质参数,与传统方法比较起来,比较简单而且容易建立在使用者的参数萃取软体中。

In this paper, some methods of fuzzy mathematics suah as the direct method of fuzzy pattern recognition, the method of fuzzy clustering analysis the method of fuzzy information retrieval, and the recently advanced method of fuzzy fractal dimension have been applied to earthquake monitoring and prediction in the Surrounding Capital Area based on the seismicity and earthquake precursors. The seismic and unseismic precursors before both the Tangshan M=7.8 great earthquake in July, 1976 and the Datong-yanggao M...

本文把模糊数学中的模糊模式识别的直接方法、模糊聚类分析方法、模糊信息检索方法和新近提出的模糊分维方法应用到以地震活动性和地震前兆为基础的首都圈地震监测预报当中,分析研究了发生在这一地区的两次大地震,即1976年唐山7.8级和1989年大同6.1级地震前用模糊数学方法识别出的地震学前兆和非地震学前兆,并对这一地区大地震的长期和中短期模糊预报方法与途径进行了简要的讨论。

A character-codes model based pattern recognition method by using amplitude data of targets frequency response is proposed after the establishment of high frequency response equation of radar targets. The method uses the same unvariant character-codes to express the same target of different angles and uses sequential separating of regions of target's reference variables to obtain multiple coding vectors of all regions for every target. The category and pose of target can be determined after a two-staged classification processing such as coding processing of target range profile data and errors correcting processing of coded data. The two-stage classification results are used to target identification as posterior hypothesis to be tested by sufficient convincing and necessary convincing. The character-codes model based pattern recognition method is also adaptive to variation of target angles and controllable in error probability. Time-consuming and complicated iterative computation is not necessary in the train process of pattern recognition.

首先建立了雷达目标的高频频率响应方程,这种方程将目标多散射中心理论与目标局部谐振理论有机地结合起来;进而提出了目标多频响应结构成像方法,这种方法将瑞利区频率响应或谐振区频率响应曲线的不同部位用各种不同的近似方法去逼近,通过特征谱估计方法将目标的局部频响特征与宽带距离响应特征结合起来;然后提出了一种基于姿态角变化区域的序贯划分与多模匹配的特征编码识别方法,这种方法具有能适应目标姿态角的变化以及能控制识别的差错概率α等优点,在目标识别时只需要目标在少数有限个频率激励下的幅频响应数据。

There are many methods for the treatment of removal of antigen in peripheral allogenic nerve,such as predegeneration of the neuron,deepfrozen nerve grafts,freezingdrying nerve grafts,frozenirradiated nerve grafts,freezingthawing nerve grafts.

神经原位的预变性、单纯深低温冷冻处理、冷冻干燥法处理、冷冻和放射方法处理、冻融处理方法处理及化学去细胞萃取方法方法是周围神经移植物去抗原方法的主要的研究方法

The synthetic study that makes theory into practice is little. And the dissertation of the strategy that base on the core capability is little too. By studying the characteristic of dynamic situation and core capability, the text formulizes the relationship between core capability and the strategy of the enterprises. By means of SWOT, the text takes the important position of time and core capability into account and tries to analyze core capability-based strategy. The text emphasizes the balance between the foundation of core capability and the exertion of core capability in order to acquire the dominance of competitive advantage. By means of PDCA, on the base of the dynamic characteristic of core capability and the strategy, the text integrates the core capability and the strategy together. On the base of the core capability, the text analyzes the strategy of low cost, difference, merger and diversification, and gets the goal and measurement of these kinds of strategy. Through the study of these issues, the text integrates the core capability and strategy, and.

文章从核心能力的特征入手,分析企业所面临的动态环境以及由此而产生的核心能力的动态性的特点,并阐述了核心能力动态性与企业战略之间的关系;本文运用SWOT方法,首次通过对时间因素与核心能、力的重要地位的融合,在基于核心能力的企业战略的分析方法方面进行了尝试性的论述;本文强调对企业的核心能力的构建与其运用进行合理的平衡,以保证企业资源的合理分配及更好的获得企业竞争优势:运用PDCA分析方法,在综合了核心能力与基于核心能力的战略的基础上,将两者综合起来进行动态的分析,力图实现核心能力与战略的更好的结合;另外,本文对传统的低成本与差异化战略进行基于核心能力基础上的分析,大胆提出了通过对核心能力及其要素分解的判断,进行低成本、差异化战略进行选取的方法,并将此方法与传统的低成本、差异化战略的决策模式进行优势比较;也通过与核心能力的结合,对企业购并和多元化战略进行新的角度的分析,得出了基于核心能力的企业购并与多元化战略的分析、制定方法以及实施的注意事项。

2Based on the nonlinear theory, we found the reservoir seismic nonlinearprediction and evaluation method technology, it is constituted by three nonlinearmethods and the technologys of the fracture prediction, the seismic inversion and thereservoir synthesis prediction evaluation: The seismic nonlinear prediction ofreservoir fracture is one new method which is composed with the phase spacereconstruction, the nonlinear parameters pick-up technology and the syntheticprediction evaluation method. The reservoir seismic high resolution nonlinearinversion is a new seismic inversion way which the BP algorithm is embeded in theauto-adapted genetic algorithms interior to have the predominances of neural networktechnology and genetic algorithms, it adopts the new embedded GA-BP mixalgorithms and the nonlinear mapping technology, and realizes the inversionautomatically, obtains the high resolution seismic inversion profile. The reservoirseismic nonlinear synthesis prediction and evaluation is a new method which iscombined organically of genetic algorithms and adaptive neural fuzzy inferencesystem, it will optimize the new seismic attribute space which are processed to take the input, uses the new adaptive mix algorithm which GDand LSE(least-square estimation) mix algorithms of ANFIS network insert to the GAinterior and taboo search algorithms is added to the intercrossed operation place,the simulation of the evaluation parameters is used quantitative evaluation guide lineto the reservoir quality and oil-gas distribution.

2基于非线性理论,创建了储层地震非线性预测与评价方法技术,它是由裂缝预测、地震反演和储层综合预测与评价等三大非线性方法与技术组成:储层裂缝地震非线性预测是由相空间重建、非线性参数提取与预测技术及综合评价方法组成的一种新型裂缝预测方法;储层地震高分辨率非线性反演是将BP算法嵌入自适应遗传算法内部所构成的集遗传算法和神经网络技术优势于一体的新的地震反演方法,它采用嵌入式新的混合算法及非线性映射技术,自动实现反演,获得高分辨率地震反演剖面;储层地震非线性综合预测与评价是由遗传算法与自适应神经网络—模糊推理系统有机地相结合而产生的储层预测与评价的新方法,它将优化处理所形成的新地震属性参数空间作为输入,采用将ANFIS网络中的混合算法嵌入到GA算法内部与禁忌搜索算法加在交叉操作处产生新的自适应混合算法,将综合评价参数作为储层品质和含油气性的定量评价指标。

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推荐网络例句

The physiology of the skin machine body for the sake of the environment in the maintenance stability, but eject a body metabolism creation of metabolism thing BE'grease', summer perspire many various skin disease light or good, autumn perspire little metabolism thing metabolism don't go out, various skin disease made, this be the skin machine body of various burning disease.

皮肤机体的生理为了维持内环境稳定,而排出身体代谢产生的代谢物是'油泥',夏天出汗多各种皮肤病就轻或好了,秋天出汗少代谢物代谢不出去,各种皮肤病就犯了,这就是皮肤机体的各种炎症。

If I had anything tender in me, I shot it dead.

如果我有什么招标的话,我枪死亡。

The argumentation way in which this literary grace using is based on color painting, setting out from two angles separately " color"、" ink and wash", making criticizition in texts of Chinese ancient drawing history; analyzing how "color" painting was on the way from ripe to losing; emphatically analyzing the reason of losing in color center, that is to say the reason of "the change of ink and wash ", and its reconstructional way of combination, development with "ink and wash" it was "replaced" by the afterward manner. In a word, the developing "replaced"by the afterward manner.

本文所采用的论述方式是:立足于色彩绘画,分别从&色彩&、&水墨&两个角度出发,先对它们在中国古代画史论著中作一考证;分析隋唐时期&色彩&绘画是如何从体制的成熟、完备而走上&失落&的道路;着重分析色彩绘画中心&失落&亦即&水墨之变&的原由;及其在被水墨&替代&后与&水墨&结合、衍变的重建之途。