损伤的

Objective To develop a kind of preliminary screening acoumeter for the prevention of noise-induced hearing loss. Methods This portable preliminary screening acoumeter based on ARM7 LPC2148+SD card+VS1003 can make anti-noise hearing protection.

目的 研制强噪声引起听力损伤预防和快速初筛仪，能预防强噪声给人员带来的听力损伤，并能实施听力损伤的快速筛查。

Nursing countermeasure:Do a good job of preoperative visits, and foresee the various possible factors that the tooth injures happened in possibility and inform an anaesthetist actively; the event of tooth injuries once happened, according to different tooth condition,we take immediate action related to treatment, nursing measures.

护理对策：做好术前访视，积极预见可能发生牙齿损伤的各类因素并告知麻醉师；一旦发生牙齿损伤，根据不同的牙齿损伤情况，立即采取相关治疗、护理措施。

A detecting technique based on wavelet packet frequency band energy analysis combined with experiments is given.

及时发现结构是否损伤，以及确定损伤的位置和损伤的程度具有重要意义。

Using the Mindlin theory, the four-node finite element shell modal of healthy and damaged structure is formed; Using Green Function theory, the fluid around the structure is considered to be inviscid, irrotational and incompressible, and then the effect of fluid to structure is translated to the added mass matrix compared with global mass matrix using BEM.

基于Mindlin理论，本文建立了描述健康和损伤的四结点有限元板壳单元模型；基于Green函数理论，将结构所处的流体环境考虑为无粘、无旋、不可压缩的理想流体，推导了三维问题拉普拉斯方程的基本解，并利用边界元方法将流体对结构的影响归结为对结构整体质量矩阵的影响；针对各向同性损伤单元，采取刚度各向整体弱化的方法分析；对于各向异性损伤单元，采用Kachanov理论，引入了x和y两个方向的弹性损伤折减系数。

Elevated NE level may play an important role in the secondary brain injury.

颅脑损伤后体内过高水平的NE，可能在颅脑损伤后继发性损伤的发生发展过程中起重要作用。

The results were found as following:(1) The damage value increases more significantly with the increase in PVF before 30% PVF, beyond which the increasing trend becomes gradually gentle.(2)Keeping the interphase strength and PVF unchanged, the damage increase with increasing moisture concentration in a nearly linear relation.(3)The results generated from the FCC model with consideration of the interphase debonding are in good agreement with the experimental data, meanwhile, the FCC model is also capable of predicting the critical load for the damaged and the undamaged dental composite subject too the 3-point flexural test.4 A 3D-fmite element analysis has been successfully exploited to examine the mechanical behavior of the restoration-tooth structure under the polymerization shrinkage and water sorption. It was found:(1) The low stiffness of the composite has the effect to limit the displacement occurring in the remaining tooth tissue. For lower interphase, the cuspal flexures are litter higher. The high interphase modulus acts as a \'shielding effect\' for stress transfer.

得到如下结论：(1)相同的吸湿性，在30％PVF(颗粒体积分数：Particle volume fraction，PVF)前增加PVF，层间脱胶损伤值显著增加；此后损伤值的增加趋于平缓；(2)保持层间强度和PVF不变，层间脱胶损伤随吸湿率的增加而接近线性增加；(3)FCC(面心立方：Face-centred cubic，FCC)模型层间脱胶损伤的预测结果和实验数据基本吻合；同时此模型可以用于预测牙齿填充材料三点弯曲实验的临界载荷。4、建立理想牙齿修复结构，利用有限元方法研究了同时考虑聚合收缩和吸湿膨胀耦合作用下的填充修复材料和粘结界面层材料性能对牙齿修复结构的力学行为的影响，得到如下结论：(1)低弹性模量的牙齿填充修复材料能限制天然牙组织的位移，但天然牙组织的位移与粘结界面层的弹性模量无关。

JiaJi electropuncture can enhance NTFS secret and promote endogene regeneration .It verifies that there is a new treatment time by JiaJi electropuncture to SCI.The research provides theoretical and experimental function for clinical treatment to SCI.

本实验从分子水平阐述了夹脊电针治疗脊髓损伤的积极作用，能够促进神经营养因子表达，抑制BAX蛋白表达，促进受损脊髓神经再生，证实了夹脊电针治疗脊髓损伤的有效性，本实验为临床治疗脊髓损伤提供了理论基础。

Methods ct scan were performed with patients suffered from lumbar or abdominal blunt trauma, and ct findings of 24 patients with renal trauma or companying with adjacent injuried organs were analyzed retrospectively.results according to the ct features of part, range and extent of the injured kinds, the lesions could be divided into 4 types:(1) type ⅰ, simple subpeplos hematoma (4 cases);(2) type ⅱ, renal parenchyma trauma (7 cases);(3) type ⅲ, renal parenchyma accompanying hematoma (8 cases);(4) type ⅳ,broken kidney accompanying perinephric hematoma (5 cases).

对闭合性腰部或腹部创伤患者行ct扫描，分析24例肾脏损伤或合并邻近脏器复合性损伤患者的ct征象。结果：根据肾损伤的部位、范围和程度可将ct表现分为四型：ⅰ型，单纯肾包膜下血肿，4例；ⅱ型，肾实质挫伤，7例；ⅲ型，肾挫裂伤并肾内血肿，8例；ⅳ型，肾裂伤伴肾周血肿，5例。

Among these 110 patients, 20 patients were followed up 3 to 6 months for investigating the cor- rection of the change of cardiac function with the level of serum cTnI/cTnT.

扩张型心肌病患者可能存在慢性心肌损伤，其损伤程度在LVEF 30%～41%可能较重；慢性心衰患者肾功能损害对血清cTnT的影响较大，而cTnI不变，因此血清cTnI可作为评判慢性心肌损伤的特异指标。

Considering to the fatigue calendar characteristics of materials, the sequence effects of loading spectrum and the mechanical behavior of cyclic hardening/softening of metals, the cumulative fatigue damage is proved to have character of Markov process. Also, the distribution of the cumulative fatigue damage and its critical value is deduced to vary with the pre-exposure calendar time of materials.

考虑载荷次序效应、材料循环硬化/软化效应及材料的大气环境腐蚀老化效应，论证了疲劳累积损伤随机过程的Markov性，及疲劳累积损伤的正态分布特性，同时证明了临界累积损伤的统计特性随日历时间的变化关系，在此基础上建立了一新的全动态疲劳累积损伤统计干涉模型。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。