向神经的

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 manual nn as a highly integrated chiasma subject. most of models about nn are adopting the bp network and the changed form at the practical appliance, which is also the hard core of forward network, incarnating the essential part of nn.

人工神经网络作为一门高度综合的交叉学科，在实际应用中绝大部分的神经网络模型是采用bp网络和它的变化形式，它也是前向网络的核心部分，体现了人工神经网络最精华的部分。

Using BP algorithm of feed-forward neural network in fuzzy neural network, the small disjunction samples are further processed.

采用模糊神经网络中的前向神经网络BP算法对小分裂样本进行进一步处理。

The fine vessel braneh could be found on epineurium and periheurium in 3 days, the capillary network has been formed in the midportion of the nerve segment and spread toward two sides in 7 days, from 14 to 21 days, the capillary network spreaded through the whole grafts and conrected with the capillaries from the two ends.

术后3天，血管已在神经外膜和束膜上形成微小分支。7天移植神经的中段已形成毛细血第四军医大学硕士研究生毕业论文管网，并向两端扩展，而自两端长入的血管则较少。14天至刀天，血管网己分布在移植神经段的全段及各层，并与两端长入的毛细血管相吻合。

Radical basis function neural networks have the powerful approximating capability, simple structure and outstandinglearning speed in comparison with other sorts of neural networks.

径向基函数神经网络具有其它前向神经网络所不具有的最佳逼近功能，并且结构简单，训练速度快。

BP neural network based on adaptive UKF is introduced in this paper for the standard BP neural network has slow converges,local minimum value and weak generalization ability.It can train weight of BP and improve the efficiency of BP without linearization by using the frame of Kalman filters and adaptive factor to adjust the variance of dynamic model.

1引言1986年，Rum elhart和M cC lelland等人在多层前向神经网络模型的基础上，提出了误差反向传播学习算法(BackPropagation简写BP)，该算法是目前在神经网络中应用最广泛的算法，它解决了多层前向神经网络的学习问题[1]。

Nerve stem cell can be differentiation into astroblast, oligodendrocyte and nerve cell induced by factors.

神经干细胞的增殖分化可受各种因素的影响，目前已知，许多细胞因子，生长因子，营养因子以及细胞外环境等因素的作用，可诱导神经干细胞向不同的终末细胞分化，若能在体外分离培养神经干细胞并在促分化因子的作用下，诱导神经干细胞向某一特定方向分化，将为干细胞的分化机制提供有力的实验依据。

Before transecting inject 1ml Sodium Chloride in the epineurium. Annular tensile the proximal of epineurium with microscopic forceps annular shear the epineurium 7mm before broken ends with microscopic shear and stretch the epineurium until the two ends distance is 5mm.Use 8-0 suture line to bridge the nerve gap and make a 5 mm nerve tube at the proximal nerve end. Interrupted suture the epineurium tube and the distal nerve end make a 5 mm nerve mamuro for the injury nerve.Results: Postperative observation lasted for 6 weeks regeneration nerve through the 5 mm nerve mamuro.

在大鼠的坐骨神经距股方肌下缘15mm处，用1ml注射器向神经外膜下注入1ml生理盐水，然后于此处切断坐骨神经，用显微镊环形拉伸近端神经外膜，在距断端约7mm处用显微剪环形剪开神经外膜，并继续拉伸外膜使外膜两断端间距约5mm停止，用8-0的无损伤缝线桥接神经外膜两端，在神经近端形成约5mm的神经外膜管，将神经外膜管与神经远端间断缝合，使断伤的神经束间留有5mm的小间室。

Then the self-recurrent neural network structure, one kind of simplified structure of internal recurrent network, and the leaming algorithm, dynamic backpropogation algorithm of self-recurrent neural network, is proposed.

本文将神经网络作为传统的线性模型的非线性推广进行了分析，证实了多层前向神经网络与非线性自回归模型的等价意义，及带有反馈的循环神经网络与非线性自回归移动平均模型的等价意义。

Expose the nerve first at the posteromedial aspect of the distal end of the biceps femoris tendon and trace it distally to where it winds around the neck of the fibula. In this location the nerve is covered by the origin of the peroneus longus muscle. With the back of the knife blade toward the nerve, divide the thin slip of peroneus longus muscle bridging it. Then displace the nerve from its normal bed into an anterior position.

先在股二头肌腱远端后内方暴露腓总神经，顺神经向远端追踪至环绕腓骨头的部分，此处腓总神经被腓骨长肌起点覆盖，保持刀背指向腓总神经，挑断跨越神经的部分腓骨肌纤维，然后将腓总神经自正常的位置转移至前移的位置。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新