神经板

Based on the alterative information of vibration mode and natural frequency in the presence of cracks, the thesis focus on the study of diagnosis index of cracks for plate and intelligent diagnosis of cracks using BP neural network.

本文主要依据板有无裂纹的振型和固有频率的变化信息，研究适于板的裂纹诊断指标，在此基础上，采用BP神经网络开展板的裂纹的智能诊断研究。

A plane block with circle marks is used to collect sample data and train the neural network.

使用带有圆形标志点的平面标定板进行神经网络的样本采集与训练。

Methodsafter total decompression of the spinal nerve through posterior medline approach, discectomy of the slipping segment was performed with a circular saw with diameter of 1.0 centmeter. under direct visualization through the hole of the circular saw, the disc tissue including cartilage of upper and lower end plates was removed with a long handle curette.

方法后正中入路脊髓神经根彻底减压后，用直径1.0 cm环锯摘除滑脱椎体间的椎间盘，然后通过环锯孔直视下彻底清除椎间盘髓核组织，用长柄刮匙刮除椎体上下终板软骨，使骨面成鱼鳞状。

METHODS: We assessed our patients by clinical and electromyographic studies, by intercostal muscle biopsies for in vitro microelectrode analysis of neuromuscular transmission and quantitative electron microscopy EM of 409 end plates, and by mutation analysis, and expression studies of the mutants.

我们通过临床表现及肌电图检查、通过肋间肌活检进行神经肌肉传递的体外微电极分析和对409个运动终板的定量电子显微镜检察，以及运用突变分析和突变体的表达研究对患者进行分析评定。

By blocking the transmission of nerve impulses or by decreasing the excitability of the motor end plate or by other actions.

通过阻止神经推动力的传输或减弱运动终板或其他的活动的兴奋性来减轻肌肉的收缩的药物。

Results: Current of 1 mA, 210 s could cause necrosis and cavitation in the dorsal funiculus, resulting in bilateral corticospinal tract injury; rats with electrolytic lesions exhibited declined motor function with decreased Tarlov score, increased Ashworth score and reduced inclined plane angle, the HRP labeled neuron counts in motor cortex were also significantly lower in the lesioned group than sham-operation group.

结果：1 mA， 210 s的损伤电流，可在脊髓后索造成神经组织坏死，形成空腔，使双侧皮质脊髓束纤维受损；术后1周、2周、3周观察，电损毁组大鼠运动功能显著低于假手术组，表现为后肢运动评分下降，Ashworth 肌张力评分增大，斜板实验角度下降；电损毁组运动皮质标记神经元计数也显著低于假手术组。

Seven patients were admitted into this department in acute phase of trauma, repair of popliteal artery in 2 patients and repair of PMC and MCL in 4 patients were performed in this phase. Arthroscopic combined reconstruction of ACL and PCL with autografts was performed in all patients from 4 to 12 weeks after trauma, reconstruction of PLC with the posterior half of biceps femoris tendon tenodesis in 3 patients and reconstruction of PMC and MCL with femoral fascia in 1 patient were completed simultaneously.

方法］自2001年9月~2005年2月，13例病人（13膝）经关节镜检查证明ACL和PCL均断裂，其中5膝伴后内侧角、内侧副韧带损伤，4膝伴后外侧角损伤，2膝伴外侧半月板破裂，1膝伴内侧半月板损伤，3膝伴动脉损伤，2膝伴腓分神经损伤。7例病人于损伤后急性期入院，2膝于急性期行血管探查修复，4膝行膝后内侧角、内侧副韧带修复。13例病人于伤后4~12周在关节镜下行自体移植物单束ACL和PCL联合重建术，其中4例同期后1/2 股二头肌腱重建后PLC，1例同期阔筋膜PMC、MCL重建。

Seven patients were admitted into this department in acute phase of trauma, repair of popliteal artery in 2 patients and repair of PMC and MCL in 4 patients were performed in this phase. Arthroscopic combined reconstruction of ACL and PCL with autografts was performed in all patients from 4 to 12 weeks after trauma, reconstruction of PLC with the posterior half of biceps femoris tendon tenodesis in 3 patients and reconstruction of PMC and MCL with femoral fascia in 1 patient were completed simultaneously.

］自2001年9月~2005年2月，13例病人（13膝）经关节镜检查证实ACL和PCL均断裂，其中5膝伴后内侧角、内侧副韧带损伤，4膝伴后外侧角损伤，2膝伴外侧半月板破裂，1膝伴内侧半月板损伤，3膝伴动脉损伤，2膝伴腓总神经损伤。7例病人于损伤后急性期入院，2膝于急性期行血管探查修复，4膝行膝后内侧角、内侧副韧带修复。13例病人于伤后4~12周在关节镜下行自体移植物单束ACL和PCL联合重建术，其中4例同期后1/2 股二头肌腱重建后PLC，1例同期阔筋膜PMC、MCL重建。

Method］from sept 2001 to feb 2005, 13 knees with combined acl and pcl tear in 13 patients were verified with arthroscopy. of them, 5 knee were combined with rupture of the posteromedial coner and medial collateral ligament, 3 combined with disruption of the posterolateral corner, 2 with lateral meniscus tear, 1 with medial meniscus tear, 3 associated with popliteal vascular injury and 2 with peroneal nerve injury. seven patients were admitted into this department in acute phase of trauma, repair of popliteal artery in 2 patients and repair of pmc and mcl in 4 patients were performed in this phase. arthroscopic combined reconstruction of acl and pcl with autografts was performed in all patients from 4 to 12 weeks after trauma, reconstruction of plc with the posterior half of biceps femoris tendon tenodesis in 3 patients and reconstruction of pmc and mcl with femoral fascia in 1 patient were completed simultaneously.

方法］自2001年9月~2005年2月，13例病人（13膝）经关节镜检查证实acl和pcl均断裂，其中5膝伴后内侧角、内侧副韧带损伤，4膝伴后外侧角损伤，2膝伴外侧半月板破裂，1膝伴内侧半月板损伤，3膝伴动脉损伤，2膝伴腓总神经损伤。7例病人于损伤后急性期入院，2膝于急性期行血管探查修复，4膝行膝后内侧角、内侧副韧带修复。13例病人于伤后4~12周在关节镜下行自体移植物单束acl和pcl联合重建术，其中4例同期后1/2 股二头肌腱重建后plc，1例同期阔筋膜pmc、mcl重建。

During the early stage of embryogenesis, FoxD1 was mainly expressed in the somites, kidney progenitor cells, brain progenitor cells and intestine.

在胚胎发育早期，FoxD3在未迁移神经嵴前体细胞、体节、耳后的基板、头部和躯干的神经嵴细胞、松果体中表达。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐