神经的

A mathematical model of dynamic neural networks is built, which is shown to be equivalent to an affine nonlinear control system.

引 言 神经网络系统是在现代神经生物学和神经心理学的研究基础上，模仿人的大脑神经元的结构特征和功能特征而建立起来的一种非线性系统。

The paper puts forward stock prediction pattern based on BP Neural Network, depending on Neural Networks approachability to non-linear function. Compared with the prediction method of Time Order, one of the traditional prediction methods, BP algorithm is verified to be feasible and effective on stock prediction.

本文借助神经网络对非线性函数的逼近能力，提出基于BP神经网络的股票价格预测模型，通过对比传统的时间序列预测方法，证实BP神经网络算法用于股票预测的可行性及有效性。

The results show that firstly, ApoE and LDL receptors can be transported bidirectionally (i.e. retro-and anterogr-adely) in the axoplasm along axons. Secondly, ApoE derived from regenerating fillers can be transported re t rogradely to the cell bodies.

本文用免疫细胞化学法研究正常和再生的大白鼠外周神经中脱辅基脂蛋白E和低密度脂蛋白受体的运输特性，发现在正常的外周神经中，ApoE及LDL受体在轴浆中均可沿轴突正行和逆行运输；再生的神经可产生ApoE，ApoE可逆行向细胞体转运。

Four pairs of nerves arise from the brain, the 1st pair leading to the antennules.

东方对虾的胸动脉孔位于腹神经链的第四与第五对神经节之间的神经干上。

Instead of nerve autografts, tissue-engineered nerve grafts are being used in laboratory for the treatment of peripheral nerve deficits.

组织工程化的有生物活性的神经替代物称为&人工神经&，当前正被尝试用来替代来源有限的自体神经移植修复周围神经缺损。

G.H.Parker reasoned that if, for example, a flatfish's left eye migrated when the right optic nerve was on top, there would be a twisting of nervers, which might be mechanically disadvantageous. For starry flounders, then, the left-eyed variety would be selected against, since in a starry flounder the left optic nerve is uppermost.

Parker论证道，比如，当比目鱼的右眼视觉神经位于顶部时，如果它的左眼要转移向上，神经就会发生扭曲，这从机械运动角度看会产生不便；而对于箭齿鲽鱼来说，由于它是左眼视觉神经在上，所以右眼上移的左眼变种就不可取了。

METHODS: Sixty patients undergoing elective unilateral TKAunder spinal anesthesia received in a randomized, double-blindmanner a femoral, obturator, or sham nerve block at the endof surgery.

60名在脊麻下择期行单侧膝关节成形术的患者，在手术结束后接受随机双盲的股神经阻滞或闭孔神经阻滞或未作神经阻滞的临床研究。

In order to study the architectuer of human cardiac neurons, the location and mumber of human cardiac ganglionated plexuses and their nervous connections were investigated.

为了研究人心脏神经元的构筑，观察了人心脏神经节的分布数量和神经连接。光镜下发现大量神经节（550±149）或神经元分布在人的心房和心室表面。

According to the characteristic of wavelet packet transformation and fuzzy neural network, this paper proposed a new method of discriminating fault line for single-phase ground in distribution system based on the wavelet packet transformation and fuzzy neural network. The wavelet packet fuzzy neural network trained by the post fault zero sequence current is used to discriminate the fault line.

根据小波包变换和模糊神经网络的特点，提出了基於小波包变换模糊神经网络的一种小电流接地系统单相接地故障选线方法，即利用经过接地后零序电流训练的小波模糊神经网络来判别接地线路。

In Chapter 2, the learning algorithm of the single-layer perceptron and its limitation are considered firstly.

前馈结构的神经网络是最重要的神经网络模型之一，本文系统地研究了前馈结构神经网络的能力，包括多层感知机和径向基函数网络两部份。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。