方法
- 与 方法 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Based on these, the method for analysing the thermal-mechanical problems during the film depositon is proposed, and some mechanical problems are studied which include the asympototic analysis of the stress and deformation in a nonhomogeneous material layer on a substrate and the weight function method for interface crack problems as well as the mechanics of an interface toughening induced by the dilatant transformation.
本文对这些方面的研究及其成果进行了较全面的评述,并在考察了一个薄膜-基底系统(等离子喷涂ZrO〓陶瓷涂层的工艺研究)的生产研究的全过程的基础上,对薄膜沉积过程中的热-力学分析方法和包括表面异质层中应力变形的渐近分析方法、界面裂纹问题中的权函数方法、相变引起的界面增韧的力学分析方法等在内的一些薄膜-界面-基底系统的力学问题进行了研究。
-
The system parameters are determined by optimizing an output-error cost function. To deal with the non-uniqueness of the fully parameterized state-space system, a projected gradient search algorithm is presented by restricting the update of the parameters to the tangent space to the manifold of observationally equivalent state-space systems. The sufficient condition to employ L-M algorithm for optimizing parameters is also introduced. The proposed hierarchical optimization identificationmethod includes two steps: First, the parameter search direction is determined by the proposed adaptive L-M projected gradient approach; Second, the optimum step size is computed according to a line search method.
通过极小化输出误差目标函数获得了系统参数估计;提出了正交梯度搜索方法用于解决系统参数的非唯一性问题,正交梯度搜索的本质是在输入-输出等价类相切平面的正交垂空间更新系统参数;给出了用 L-M 算法进行参数优化的充分条件;提出的系统参数递阶优化辨识方法包括两步:首先用给出的自适应 L-M 算子正交梯度方法确定参数优化方向;其次由一维搜索方法计算最佳步长。
-
In this paper, a new dynamic accuracy theory is developed. It called the theory of the tracing of dynamic measuring error. The total output error is discomposed to the internal units as well as the external noises. And its modeling methods are discussed. Wavelet neural network is an important method in modern signal processes.
近年来 ,国内外不少学者致力于动态测试方法及数据处理方法的研究,取得了一定的成果,但是对动态测试误差分析方法的研究还不够成熟,不能满足现代高精度测试的要求,需要深入研究新的理论和分析方法。
-
At the same time, some problems were found during separations of 7S and 11S globulin and hydrolysis of soybean. According to the structure of soybean protein, this paper studied the separation methods of 7S and 11S globulin, and a new separating method was put forward: with low-temperature defatted soybean draff as raw material, a technique of alkaline extraction, acidic precipitation and membrane filtering was used.
为了进一步探讨7S和11S两种功能性不同的大豆球蛋白的分离新工艺和方法,以及更好的解决大豆蛋白难酶解的问题,本文从大豆蛋白质原料的结构入手,选择低温脱脂大豆粕为原料,首先研究了7S和11S大豆球蛋白的分离方法,通过几种传统分离方法的比较实验,提出了一种碱提酸沉结合膜分离技术的分离新工艺,SDS—PAGE电泳分析表明碱提酸沉膜分离技术得到的7S和11S大豆球蛋白的相对纯度分别达到75.5%和84.7%,结果均优于传统方法。
-
Material and Methods:From March,2008 to January,2009,250 patients(146 Males and 104 Females,ranged from 18 to 82 years old,mean age was 48 years old) enrolled in the First Affiliated Hospital of Kunming Medical College were performed dual energy scan(Group A,200 patients) and Neuro-DSA scan(Group B,50 patients) using DSCT.The patients were randomly divided into Group A and Group B.Regarding to the justification of scan protocol,100 patients in Group A were selected as sub-group to explore the scan protocol.The image quality Was analyzed both in four categories(4.0/60、4.5/60、4.0/70、4.5/70) of flow rate and total amount of contrast-enhanced material and in three categories(100—150HU、150—200HU、200-250HU) of CT value of left common carotid artery.The comparison of two scan approach was based on image quality,radiation does, postprocessing methods,time of scanning and subtraction and data storage amount.To validate the diagnostic capability of DE-CTA virtual unenhanced images,100 patients in Group A were undergoing head scan both in routine non-contrast program and DE-CTA virtual unenhanced program.Mean CT values,signal-to-noise ratio,image quality,sensitivity of lesion identification,and radiation does were applied to comparison.According to diagnostic results of dual energy of cerebral arterial angiography,62 patients out of 200 patients in Group A were confirmed with cerebral vessel lesions,the results were complied with DSA findings(the time between the two methods were within 1 week).
材料与方法收集2008年3月到2009年1月间在昆明医学院第一附属医院行DSCT CTA检查者250例(男性146例,女性104例,年龄范围18-82岁,平均48岁),随机分为A、B两组,A组200例行双能量头颅CTA扫描;B组50例行Neuro-DSA扫描。A组前100例按对比剂不同流率和总量分为4组(4.0/60、4.5/60、4.0/70、4.5/70)对图像质量比较;按触发时左颈总动脉内平均CT位分3组(100—150HU、150—200HU、200-250HU),比较图像质量的差异;对A、B两组血管图像质量、辐射剂量、后处理的方法、扫描和后处理时间及数据的容量进行比较分析;A组中前100例行常规与DE-CTA虚拟平扫的平均CT值、信号噪声比、图像质量、病灶显示情况、辐射剂量的比较分析;A组中行DSA检查62例(两种方法间隔时间均1周内),比较两种检查方法诊断结果是否符合,并对其中24例动脉瘤行动脉瘤部位、数目、形态、瘤颈显示程度、瘤颈大小及瘤体长径和短径的比较研究。
-
The invention further provides methods for binding a DmGPCR, methods for identifying modulators of DmGPCR expression and activity, methods for controlling a population of insects with a DmGPCR antibody, a DmGPCR antisense polynucleotide, a DmGPCR binding partner or modulator, and methods of preventing or treating a disease or condition associated with an ectoparasite.
本发明还提供了结合DmGPCR的方法,鉴定DmGPCR表达和活性的调节剂的方法,用DmGPCR抗体控制昆虫群体的方法,DmGPCR的反义多核苷酸,DmGPCR结合伴侣或调节剂,和预防或治疗与外寄生虫有关的疾病或情况的方法。
-
Then an adaptive, efficient unbiased estimator of Hurst index based on multiresolution wavelet analysis and weighted regression is presented.
针对基于小波的Hurst指数估计方法的自适应问题,结合方差分析给出了一种有效的解决方法,从而提出了自适应的参数估计方法,并且该方法在一般意义上是无偏的。
-
Through analyses and comparisons with other methods, the equation squared root method of current is applied for the distribution line loss. Aim at the shortcomings of traditional equation squared rood method of current, improved methods are presented. This papers presents the treatment of small power sources in distribution network and the loss calculation of transformer winding resistance. In addition, the method on the base of queue is applied for programs.
通过对当前较为成熟的几种配电网线损计算方法的深入研究,分析和比较了这些方法的不同特点,并针对传统均方根电流法的不足,提出了对配电变压器铜损的改进计算方法;提出利用等效容量的概念来解决小电源问题,使得在配电网理论线损计算中对小电源的处理变得简便易行;在配电网理论线损计算的程序实现上,引入了基于队列的设计方法,不仅极大地提高了计算效率,而且可以得到任意节点的线损数据,方便了线损计算和管理。
-
On the aspect of functional testing, this paper represents the concept of functional testing and focuses on the functional test suite design. Based on the in-depth study of GSM-R network E-interface services and considering the completeness and redundancy of the test suite, equivalence class method is used to design the test suite, and then an analysis of its inadequate is conducted and a new design method is proposed .The two methods are compared and a suggestion on how to design a GSM-R network interoperability test suite is given.
功能性测试方面,本文阐述了功能性测试的概念,重点研究了功能性测试集的设计方法;在深入研究分析GSM-R网络E接口业务的基础上,分别考虑了测试集的完备性和冗余性,首先使用等价类划分方法设计了E接口的测试集,然后对其不足进行了分析,并提出了一种新的设计方法,最后对两种设计方法进行了对比分析,对如何设计GSM-R网络互联互通测试集提出了建议。
-
We present some new topologies of components and devices, embedded passive circuits and interconnections with good EM properties which can meet development of microwave and millimeter wave LTCC technology and domestic state of arts and crafts inland. These algorithms are applied to optimization of LTCC circuits by using relevant production and applicable techniques in SM study, i.e. optimizing and designing various LTCC capacitors and inductances by original space mapping, LTCC transitions by aggressive space mapping and equivalent lumped-element LTCC filters by knowledge-based aggressive space mapping and neural space mapping.
并且针对微波、毫米波LTCC技术发展需要和国内加工水平,探索具有良好电磁特性的新型组件拓扑结构及其内嵌无源电路、互连实现形式,利用在空间映射研究中取得的成果和开发的实用技术,实现LTCC电路的优化,主要是采用初始空间映射方法优化设计了LTCC电容电感、采用主动空间映射方法LTCC过渡、采用基于知识主动空间映射方法与神经网络空间映射方法优化设计了LTCC等效集总元件滤波器等。
- 推荐网络例句
-
I will endeavour to find you some assistance.
我尽力帮你找人帮忙。
-
At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.
起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。
-
Ah may dee:You are chinese living in a democratic country.
你是居住在民主国家的中国人吧。