神经

Results In the distal two - thirds of the upper arm, branches of the median nerve constantly formed three fascicular groups. The anterior part of nerve trunk hosted branches to the pronator teres and the flexor carpi radialis. The posterior part of nerve trunk contained the anterior interosseous nerve and branches to the palmaris longus muscle. Branches to the hand and to the flexor digitorum superficialis which was the main trunk of the median nerve at the proximal forearm were grouped to form the middle part.

结果 在臂中、下段，正中神经的分支恒定地组成3个神经束组：旋前圆肌肌支和桡侧腕屈肌肌支束组在神经干的前方，骨间前神经和掌长肌肌支束组在神经干的后方，中间束组是由指浅屈肌肌支和手部分支组成的正中神经前臂主干的近段。

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。

There were 36 males and 40 females,with the average age of 47.7 years.36 patients presented with sciatica and perineal numbness,11 patients had painless mass and the other 20 were identified due to other causes.Among 67 benign neurogenic tumors,54 were originated from S1-S3 nerves,3 from S4-S5 nerves and 11 from the presacral space without caudal involvement.Giant cell tumor was found in 60 patients,which included 24 males and 36 females,with an average age of 32 years.Upper sacrum（S1-S2） was involved firstly.There were 56 patients（average,37.7 years） diagnosed as other primary benign bone tumors,which included 24 cases of teratomas,epidermoid cyst or dermoid cyst.Other malignant tumors,including chondrosarcoma （17）,Ewing′s sarcoma/PNET（14）,multiple myeloma（12）,lymphoma（6） and osteosarcoma（6） were found in 64 patients.

其中脊索瘤95例，男62例，女33例，平均年龄55.7岁，骶尾区疼痛是主要症状（82例），半数以上患者伴有坐骨神经痛，肿瘤多先累及低位骶骨（S3~S5）；神经源性肿瘤76例，男36例，女40例，平均年龄47.7岁，神经纤维瘤43例，神经鞘瘤24例，恶性神经鞘瘤9例，主诉多为坐骨神经痛、会阴部麻木（36例）和无痛性包块（11例），20例患者为查体或其他原因检查时发现，67例骶骨良性神经源性肿瘤起源于S3以上神经者54例，起源于S3以下神经者3例，发生于骶前未累及骶管者10例；骨巨细胞瘤60例，男24例，女36例，平均年龄32岁，腰骶尾部不适（37例）、坐骨神经痛（21例）是主要的临床表现，肿瘤多先累及上位骶骨（S1~S2）；骶骨其他原发良性肿瘤及瘤样病变56例，包括畸胎瘤、皮样囊肿、表皮样囊肿共24例；其他原发恶性肿瘤64例，包括软骨肉瘤17例，尤文肉瘤14例，多发性骨髓瘤12例，成骨肉瘤6例等。

The proximal and distal nerve stumps were sutured l cm apart, in an end-to-side fashion like ＂π＂, to the epneurium windows, opened by removing the epineural sheath on the intact tibial nerve trunk with 1 mm long.

方法将大鼠右侧腓总神经在胭窝处剪除约5mm后，将断裂的腓总神经近端和远端分别就近与同侧胫神经上的外膜窗施行端侧吻合，吻合口间距约10mm；动物存活24个月后，将手术侧近端吻合口以上胫神经剪断，再将辣根过氧化物酶注入远段腓总神经干内，72h后取材并经四甲基联苯胺显色显示脊髓L3-6节段神经元和L4、L5脊神经节细胞，同时取腓总神经远段行电镜观察神经纤维再生状态。

At first, with the low-frequency data measured, three of the LRE fault detection systems for the real-time condition are proposed using the nonlinear identification technology of the BP neural network, the state estimation technology of the dynamic neural network, and the pattern recognition technology of the fuzzy hypersphere neural network. The learning algorithms of the BP and dynamic neural network are researched at the same time. Furthermore, while the engine operation is divided into the start and steady-state processes, the real time ability, the response time, the accuracy, the robustness, the sensitivity and the monitoring parameter optimization are studied. In the test data analyses of the YF-75 engine, the detection system correctly carried out for all normal tests, and in the three abnormal tests the engine faults were accurately forecasted.

首先，基于低频测量数据，采用BP神经网络的非线性辨识技术、动态神经网络的状态估计技术及模糊超球神经网络的模式识别技术，提出了三种发动机故障实时检测系统；同时研究了BP神经网络和动态神经网络的学习算法；另外还把发动机工作分为启动过程和稳态过程，分别讨论了神经网络故障检测系统的实时性、及时性、准确性、鲁棒性、敏感性及参数优化问题；在YF-75发动机试车数据分析中，不仅全部正确地监测了正常试车过程，而且准确地预报了三次异常试车中的发动机故障。

For the data set with noises, a regularization intropolation method is proposed according to regularization theory. The relation between the regularization intropolation method and radial basis function method is analysed and structure of regularization neural networks is proposed. RBF neural network is introduced by mortifying the regularization neural networks. Finally the approximation capacity of RBF neural networks is analysed. 4. A method of selecting the centers of hidden layer neurons of RBF neural networks is proposed.

首先从精确内插问题开始对RBF神经网络进行讨论，然后根据正则化理论提出了在数据集带有噪声的情况下的内插方法，并分析了这种内插方法和径向基函数方法之间的密切联系以及其对应的正则化神经网络结构，其次对正则化神经网络进行了修改，得到正则化神经网络的简化形式—RBF神经网络，最后分析了RBF神经网络的逼近性能。

First, the traffic flow time series chaotic feature is extracted by chaos theory. pretreatment for traffic flow time series, and the wavelet neural networks model was build by this. Second, the chaotic mechanism and the chaotic probability is described. Based on chaotic learning algorithm, and the wavelet neural networks fast learning algorithm of traffic flow time series is designed based on chaotic algorithm. Last, a single-step and multi-step prediction of traffic flow chaotic time series is researched by BP neural networks, wavelet neural networks and wavelet neural networks based on chaotic algorithm. The results showed that the wavelet neural networks predictive performance is better than the BP networks and the wavelet neural networks by the simulation results and root-mean-square value.

首先，通过混沌理论提取了交通流量时间序列的混沌特征，并在此基础上建立了小波神经网络交通流量时间序列模型；接着，阐述了混沌学习算法的混沌机理、混沌产生的概率，设计了基于混沌算法的小波神经网络交通流量混沌时间序列快速学习算法；最后利用交通流量混沌时间序列对BP网络、非混沌算法的小波神经网络以及基于混沌算法的小波神经网络进行了单步预测和多步预测，并对预测结果的仿真图和真实值与预测值的方均根进行了比较，结果表明基于混沌学习算法的小波神经网络的预测性能明显优于应用BP网络和非混沌算法的小波神经网络。

Factor of 1 nerve nutrition and lack gene of nutrition of ill nerve of blood-vessel of head of courage and uprightness is a group of special protein and peptide kind element, this are familial include nerve to grow factor (factor of nutrition of nerve of sex of NGF), head source , nerve - 3, alkalescent grow into fiber cell factor and nerve of sex of colloid cell source.

现将几种重要的非炎性细胞因子和缺血性脑血管病关系的探究进展作以下综述。1神经营养因子和缺血性脑血管病神经营养因子是一组非凡的蛋白质和肽类分子，该家族包括神经生长因子、脑源性神经营养因子、神经营养素-3、碱性成纤维细胞生长因子和胶质细胞源性神经营养因子等。

The epineurial vessels run along the nerves length and gave off branches, distributing along nerve bundle, to enter into endoneurium. The endoneurium contained only capillaries. Arteriolovenular anastomoses were few in trigeminal nerve root. The distribution of microvessels in trigeminal nerve root was uneven. The number of microvessels in the medial portion was less than that of the distant.

神经外膜血管沿神经根径向走行，沿途再发侧支斜行或横行入神经束之间，顺神经根束分布，并发侧支进入神经内膜；半月结内微血管围绕神经节细胞分布；三叉神经根内的微血管配布不均，其近侧端微血管数量较少，远侧端微血管数量较多。

The operations used in this group include neurolysis,epineurial repair,epineurial-fascicular repair,fascicular repair and nerve grafting.Results:All cases were followed-up after 18 months to 60 months and the excellent rate was 80.4％.Conclusions:Those result indicated that the preceded microsurgical repair of peripheral nerve injury is an effective method for raising the excellent rate of peripheral nerve injuries,and for vary nerve,different section of nerve injured,very nature of nerve injury,the method are vary.

目的：分析应用显微外科技术在修复周围神经损伤中影响其疗效的因素及处理措施方法：从1987年至1997年，用显微外科技术修复周围神经损伤80例92条神经，方法包括神经松解术、神经外膜缝合术、外膜束组膜缝合术、束膜缝合术和神经移植术结果：经术后18个～60个随访，优良率80.4％结论：神经断端精确对合和及早修复可提高其疗效；同神经、同的损伤平面、损伤程度同，采用同的缝合方法

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了