大同市健身俱乐部健身教练员现状调查与分析

运用文献资料法、问卷调查法和访谈法，对大同市健身俱乐部教练员的年龄结构、性别结构、学历层次，所具备的专业素质状况等进行了调查与分析，并对目前存在的问题提出了合理建议．     

碳酸钕对AZ91合金组织的细化和腐蚀性能的影响

通过介绍实验条件实验方法及结果,并对其进行讨论,研究碳酸钕对A291合金组织的细化和腐蚀性能的影响。     

The neodymium isotopic characteristic and geological significance of Kuokesu plagioclase amphibolites from the Kuruktag, Xinjiang, China

The plagioclase amphibolites from Kuokesu area, Kuruktag, Xinjiang occur as enclaves embedded in the granodioritic gneiss. In the light of major elements and REE data, the parent rocks of the plagioclase amphibolites belong to weak_alkaline basalts. Their Nd model ages mainly range from 2 832 to 3 075 Ma. The seven plagioclase amphibolites yield a reasonable good isochron age of (828±86) Ma(2σ) with I Nd =0.510 981±82, ε Nd ( t )=-11.5±1.6. Such a case shows the existence of great proportion of the Archaean mafic crustal basement on the Kuokesu area. The strong tectonic_thermal event at about 820 Ma made the Sm_Nd isotope of the metamorphic rocks homogenization. This event would be associated with the Tarim Movement.     

Nd isotopic characteristics of Proterozoic metasedimentary rocks and constraints on their provenance in the eastern segment of Central Tianshan Belt, Xinjiang

Sm-Nd isotopic characteristics, εNd(t) values and Nd model ages (TDM) of Proterozoic metasedimentary rocks in the eastern segment of Central Tianshan Belt (ESCTB), Xinjiang, are used to constrain the sedimentary provenance as well as to evaluate their tectonic implications. εNd(t) and TDM values of these samples range from -4.00 to +6.36 and from 1.29 to 2.29 Ga, respectively. These feature values are distinguished from those of Archean Tarim Craton. Their average εNd(t) values of the Weiya, the Kumishi and the south to the Dikar samples are -2.46, +2.06 and +1.37, respectively. Nd model ages of the Weiya samples vary between 1.86 and 2.29 Ga, but those of the Kumishi and the south to the Dikar samples show a significant concentration at 1.6～1.9 Ga and the youngest Nd model age is 1.29 Ga. Those Nd isotopic characteristics suggest that these metasedimentary rocks could be derived from a significant proportion of Paleoproterozoic crustal source and a participation of young arc materials, rather than Archean Tarim Craton. Furthermore, the data also indicate that these two sources were paleogeographically separated. Thus we can deduce that the Kumishi and the south to the Dikar metasedimentary rocks were formed proximal to the arc side of the back-arc basin, but the Weiya metasedimentary rocks were closer to the continental side of the back-arc basin.     

激光二极管泵浦的调 Q Nd:YVO_4绿激光器

研制成用激光二极管泵浦的声光调Ｑ的Ｎｄ：ＹＶＯ４腔内倍频激光器，得到了ＴＥＭ００模、频率高达１００ｋＨｚ的稳定的５３２ｎｍ绿激光脉冲系列输出，阈值泵浦功率２７ｍＷ；在连续５７０ｍＷ的泵浦功率下，绿激光脉冲的峰值功率１．１ｋＷ，脉宽４．６ｎｓ；输出功率稳定，在±５℃的工作温度变化下，输出功率变化小于±２％。实验发现：在一定的泵浦功率范围内，随着泵浦功率的增加，１．０６４μｍ基频光的输出能量逐渐增加到一个最大值，然后又逐渐降低；而５３２ｎｍ倍频光的输出能量却一直单调增加；同时激光脉冲宽度也逐渐减小，趋向一个最小值；倍频光脉冲宽度远小于基频光脉冲宽度。声光调制器的质量对器件性能有很大的影响。     

汉诺坝非橄榄岩类包体的化学和同位素特征

汉诺坝非橄榄岩包体主要是指辉石岩、辉长岩和麻粒岩，其主要元素、微量元素有较大和系统的变化，Ｎｄ、Ｓｒ、Ｐｂ同位素从非常亏损的ＤＭＭ源特征变至具ＥＭＩ和ＥＭＩ源趋势的富化特征．它们与寄主玄武岩及共生的橄榄岩包体无直接成因联系，有不同的形成时代并在不同的空间位置居留     

经纤支镜激光治疗原发性气管支气管淀粉样变性10例

目的：研究经纤支镜Nd：YAG激光治疗在原发性气管支气管淀粉样变中的应用．方法：确诊原发性气管支气管淀粉样变10例，经纤支镜行Nd：YAG激光治疗．结果：4例局限性气管支气管淀粉样变成功去除腔内病灶，5例气管支气管淀粉样变伴有不同程度狭窄者管腔较前明显通畅；1例左主支气管闭塞伴左上叶不张者治疗后肺复张．结论：经纤支镜Nd：YAG激光治疗在原发性气管支气管淀粉样变性中有良好疗效。     

水下航行器附连水质量的理论及实验研究

以二维无限长圆柱在水下的垂向振动为例,对其有限区域的不可压缩流场进行分析;通过数值计算并借鉴刘易斯法,分析了水域宽度比、水深比和浸没深度比等无量纲参数对刚体附连水质量的影响;提出了水下航行器附连水质量的快速预测公式.结果表明:刚性壁面可使刚体的附连水质量增大,但当刚体与壁面的距离增加到一定程度(截面半径的5倍)时,刚性壁面的影响可以忽略;自由表面可使刚体的附连水质量减小,当刚体与自由表面的距离达到截面半径的6倍时,可以忽略自由表面的影响;当刚体的垂向运动频率较高或刚体与自由表面的距离较大时,可以认为自由表面的速度势为零.     

高职院校就业指导课程改革刍议

目前我国高职院校就业指导课程体系建设普遍存在着公共必修课的课程定位有待落实,师资力量差强人意,第二课堂建设明显滞后等问题.为此,必须提高重视程度,确保就业指导课程的必修课地位：加强师资力量建设：加强第二课堂建设.     

密度均匀连续分层流体的内波格林函数

考虑自由表面的影响,从理论上建立了在密度均匀的连续分层流体中脉动点源生成内波的数理模型,应用Fourier变换和围道积分,推导出点源脉动频率的平方小于Brunt-Visl频率的平方条件下含自由面的连续分层流体中脉动点源的内波格林函数,并给出了详细的解析表达式,讨论了解的性质、内波的生成机理和自由面的干扰机理及波动特征.结果表明,所提出的连续分层流体中脉动点源的内波生成格林函数具有较好的准确性.