您要查找的是不是:
- The expression of NGF quickly reached peak level at 1 d after DBI?(P?<0 05). 弥漫性脑损伤后 1d时NGF表达水平迅速达到峰值(P <0 0 5 )。
- The propagation characteristics of stress waves in the solids with variable section was dissection. 摘要对应力波在变截面体中的传播特性进行了理论研究和数值分析。
- Methods: 44 male SD rats were randomly divided into 4 groups: sham, SNL 1 d, SNL 3 d and SNL 7 d groups. 方法:44只雄性SD大鼠180~220g,随机分成4组,分别为假手术组、脊神经结扎1天、3天和7天组。
- The propagation of stress waves in solids can be considered as a part of the field of acoustics or ultrasonics depending on the conditions. 应力波在固体中的传播,根据其条件可视为声场或超声场的一部分。
- For example, assume that on October 1 D company purchases 10%, $10 bonds of G company which pays interest on July 1 and January 1 each year. 例如,假定l0月1日公司购G公司面值为1000美元,年利率为10%25的债券100张,债券于每年7月1日和1月1日支付利息。
- SNI also resulted in a significant increase in the mRNA expression of 5-HT_7 receptor subtype at 1 d, then maintained at a high level to 28 d. 5-HT7 受体亚型mRNA的表达在术后 1d时即显著升高,一直维持高水平的表达至28d。
- The paper analyses the stress wave propagating in a variable section bar using HONDO finite element computer program . 利用HONDO有限元程序对应力波在变截面杆中的传播进行了分析。
- Acoustic emission (AE) is stress wave produced when the materials are distorted, or under the outside load. 众所周知,声发射(AE)是材料在受到形变或外力作用时,迅速释放能量而产生的瞬态应力波,是进行结构诊断的重要依据。
- Expression of GLAST and GS were increased on 1 d and 3 d respectively after normal saline induced acute intraocular hypertension and decreased gradually. GLAST和gs在存活1d和3d时表达上调然后下调,gs还存在重新分布。
- The mechanism of spallation is analyzed as a result of the interaction of the unloading wave and reflected stress wave. 分析了层裂机制,得出靶材是在卸载波及被反射的压力波的共同作用下发生层裂;
- Methods: Rats received a unilateral injection of 6-OHDA into SNc. The abnormal rotations induced by apomorphine (APO) were investigated at 1 d,7 d, 14 d and 21 d after lesion. 方法:利用6羟多巴胺(6OHDA)特异毁损大鼠黑质DA能神经元,采用阿朴吗啡(APO)诱导旋转实验观察术后1、7、14和21d行为学变化;
- The paper analyzes the reasons for emulsion explosive's passivation by the action of blasting stress wave. 文中分析了爆炸应力波作用致使乳化炸药钝化的原因。
- Preconditioning ischemia for 3 min could apparently decrease DND caused by ischemia for 6 min after the preconditioning at an interval of 1 d reperfusion. 而经过 3min预缺血处理 ;可明显减轻间隔1d后 6min缺血引起的海马DND (P <0 0 1)。
- "Ultrasonics: Vibrational or stress waves in elastic media that have a frequency above 20 kilohertz, the highest frequency of sound waves that can be detected by the human ear. 超音波:弹性介质中的应力波,其频率在2万赫以上,最高频率超出人耳可听闻的声波频率。
- The results show that the method can well simulate the propagation and interaction of stress waves and achieve good accuracy in the numerical study of spallation. 计算结果表明,光滑粒子法能很好地模拟应力波的传播和相互作用,层裂的计算结果与实验结果也比较吻合。
- It is shown that the irregularity of the joint surface apparently affects the stress wave transmission. 研究结果表明:节理面不规则结构明显地影响应力波的传播性质。
- FANG Qin,QIAN Qi-hu.Dynamic interaction between stress waves and underground structure with crushable backpacking[J].Explosion and Shock Waves,1988,8(4):289-298. [4]方秦;钱七虎.;应力波与带软衬垫的地下结构动力相互作用[J]
- This paper presents a signal de-noising method using wavelet analysis in stress wave detection. 介绍了一种适合于管道应力波检测的基于小波变换的去噪方法。
- The contrast of the residual diopter at operation in vary period reveal of ACL group is P>0.05,LASIK group is P<0.01. Percent of residual diopter within 1 D after 6 months reveal of LASIK is 95%, ACL is 73%. 同一手术后不同时期残余屈光度比较:ACL组P值均>0.;05;LASIK组均为P<0
- The interreaction between the weight hammer and the explosive sample is analysed making use of the stress wave theory. 从刚体动力学观点将这种相互作用简化为二阶系统,可得到一组关于应力、应力率和应力脉冲宽度的表达式。