查询词典 transposition method

Through above study, the theoretical analysis of the inherent fault tolerance of feed-forward neural networks has been extended from hard-limit activation functions to differentiable activation functions; 2. By using above method, fault tolerance of discrete Hopfield feedback neural networks have been also analyzed. It means that the above method can be applied not only for feed-forward neural networks but also for feedback neural networks; 3. For the feed-forward neural network with the Sigmoid activation function, Chebyshev Inequality method was presented.

这项研究将以前仅限于对硬限幅作用函数前向神经网络固有容错性能的理论分析推广到具有可微作用函数的前向神经网络； 2 针对离散型Hopfield反馈神经网络，利用上面提出的方法，对其同样进行了容错性分析，得出许多有用的结论和计算公式，说明上面提出的方法不仅适用于前向神经网络，同时也适用于反馈神经网络； 3 针对具有Sigmoid作用函数的前向神经网络提出了一种切比雪夫不等式法。

The research on N_4 to N60 have been also stated in this study. Gas reaction method, liquid electrolyzing method and Chemosynthesis method have been used to synthesize polynitrogen clusters and find the optimal reaction conditions in this paper.

本文综述了高能密度材料的发展历史、性能特征以及应用前景，并总结了人们在实验和理论两方面关于N_4到N_(60)的各种可能稳定存在的氮原子簇的研究成果。

Background and Objective The goals of this study were to label the antisense oligodeoxynucleotides indirectly by Chloramine T method and Iodogen method, then to discuss the labeling yields、radiochemical purity、specific activity and stability in different conditions. We discussed the right labeling method and conditions in order to lay the experiment foundation of the antisense medicament labeled by iodine for clinical application.

目的与研究背景：本课题采用氯胺-T法和Iodogen法两种标记方法进行反义寡脱氧核苷酸的125I间接标记对比研究，并在两种方法中分别探讨不同反应条件下的标记率及标记产物的放化纯、比活度和稳定性。

The invention provides a method for producing transgene sugarcane quickly with pmi genes. The method primarily comprises the steps of establishing a mannitose screening system; transformation of a gene gun; acquisition of resistant callus; differentiation and screening of the resistant callus; acquisition and rootage of resistant plantlets; molecule detection of resistant plantlets regenerated and detection of pmi gene expression by the chlorophenol red detection method.

一种利用pmi基因快速获得转基因甘蔗的方法，主要内容包括：甘露糖筛选体系的建立，基因枪转化和抗性愈伤组织的获得，抗性愈伤组织的分化筛选，抗性苗的获得和生根，抗性再生苗的分子检测和氯酚红法检测法检测pmi基因表达。

The influence of free surface on tunnels is discussed.The influence of blasting vibration on fresh concrete lining is studied. The finite element method is employed to analyze the spatial distribution of temperature and thermal stress of fresh concrete lining, the wave function expansion method is used to study the interaction of blasting seismic wave and the circular tunnel with lining, thenthe safe PPV of fresh concrete lining with different age is decided by taking into account the thermal stress of concrete lining. Using the conformal mapping method, the influence of blasting vibration on the arch tunnel with lining is studied and the safe PPV of concrete lining is deduced under different incident angle.

研究了爆破振动对新浇混凝土衬砌的影响，采用有限元法求出了圆形洞室新浇混凝土衬砌内温度和温度应力在空间上的分布及其随时间的变化，采用波函数展开法求解了爆破地震波与有衬砌圆形洞室的相互作用，获得了考虑新浇混凝土衬砌内温度应力前提下不同龄期的新浇混凝土衬砌的安全振速；利用保角变换研究了爆破振动对直墙拱形有衬砌隧洞的影响，得到了爆破地震波以不同角度入射时混凝土衬砌的安全振速。

The interaction between the foundation and soil is taken into account in the numerical method, which can simulate the actual working mechanism of the dynamic equipment foundation and circumambience soil. Thus, the numerical method has the advantage of more accuracy and reliability over the specification method based on the single mass model.

数值方法考虑了基础和地基的相互作用，更能模拟动力设备基础及周围土体的实际工作机制，较基于单质点模型基础之上的规范方法有更高的精确性和更大的可信度。

The criteria of the minimum zone circle method, minimum circumscribed circle method and maximum inscribed circle method were researched and the criterion of obtuse triangle was proposed.

研究了圆度误差评定中最小区域圆法、最小外接圆法和最大内接圆法的判别准则，提出了具有最小误差的外接圆和内接圆的钝角三角形准则，使圆度误差的判别准则得到完善。

The structure theorem is obtained by defining "ternary ordered partition method" which is used to choose the test-sets of the first $k$ tests, and by defining two operations and two relations on feedback sequences; The isomorphism classification theorem is strictly proved by virtue of the structure theorem, thus the complicated problem of discussing $3^k$ possible search domains is reduced to the relatively easy problem on $k+1$ representative search domains; By the techniques of "super-coin construction method" and "image-union method", the search problem on $k+1$ representative search domains is reduced to the simple verification of several conditions on finite space of small cardinality.

通过引入用于选取前$k$次试验的试验集的"三元有序剖分法"以及关于反馈序列的两种运算和两种关系，得到了结构定理；基于结构定理严格地证明了同构类定理，从而将必须针对$3^k$个搜索域的复杂问题转变为讨论$k+1$个具代表性的搜索域的相对简单的问题；通过"构造超币法"和"并像法"等技术手段，将关于$k+1$个具代表性的搜索域的搜索问题转化为简单的关于势非常小的有限空间的几个条件的验证问题。

The paper provides a method,which can automatically search next path of outline based on clockwise tread and search next path of closed graph based on counter－clockwise tread.The method improves the ancient method and increases graph making efficiency and intelligentize of CAD system.

该文提出基于顺时针行走方向搜索外轮廓下一条路径和基于逆时针行走方向搜索封闭图形下一条路径的原理和算法，改进了以往算法的不足，对提高CAD系统的图形生成效率以及系统的智能化程度等方面有着重要的意义。

Partition-based method is a practical cluster way to cluster data set, but the efficiency of this method is strongly depend on the pre-known knowledge, especially it is necessary for this method to give the clusters number in advance.

基于划分的方法是聚类分析中较为主要的方法之一，但是由于它对于先验知识的依赖较强，尤其是需要预先指定聚类分析的类别数目，给该方法的应用带来了障碍。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。