LD泵浦Nd：YVO4内腔倍频激光器获得120mW绿光连续输出

利用半导体激光器（ＬＤ）端面泵浦Ｎｄ：ＹＶＯ＿４和用ＫＴＰ内腔倍频的绿激光器获得了１２０ｍＷ连续、稳定的５３２ｎｍ绿激光输出。泵浦阈值Ｐ＿（ｔｈ）＝１６０ｍＷ，光－光转换效率η＿ｓ＝８．１％。换用激光腔输出耦合镜，在不加ＫＴＰ晶体倍频时，可连续输出１．０６μｍ的红外激光，输出功率为４５０ｍＷ，光－光转换效率为３１％。     

Bioactive compounds in rye flours with different extraction rates

Rye flours with extraction rate of 100% (wholemeal flour), 95% (brown flour), 90% (brown flour) and 70% (light flour) were prepared in order to study the relation between flour extraction rates and content of bioactive compounds. The following compounds were analysed: total phenolic compounds (TPC), total flavonoids (TF), inositol hexaphosphate (IP6), reduced (GSH) and oxidized (GSSG) glutathione, tocopherols (T) and tocotrienols (T3). The reduced/oxidized glutathione status (GSH/GSSG) of the flours was examined as a potential index of flour resistance against oxidative stress. The following observations were made in relation to the flour extraction rates and bioactive compounds contents: (a) milling process caused decrease in content in TPC, TF, IP6, GSH and GSSG, T and T3, (b) the most resistant against oxidation processes were suggested a brown flours, then light and finally wholemeal flour, (c) the ratio of tocotrienols to tocopherols (T3/T) was the highest in rye flours with extraction rate of 100–90% whereas light flour was the poorest source of tocopherols and tocotrienols. The provided data support current trend to increase number of rye products from wholemeal or brown flours.     

高扬程泵站综合自动化系统方案和技术要求

针对当前我省泵站改造中在自动化系统的设计方案、功能要求、软硬件方面存在的不足，在总结我省大禹渡二级站泵站自动化系统的基础上，根据高扬程泵站的特点要求，结合国际计算机最新技术和我国工业控制领域已经成熟的自动化系统结构方案，提出了高扬程泵站综合自动化系统的结构方案和技术标准要求，希望促进我省泵站自动化系统改造的规范化和标准化。     

高功率二极管泵浦固体激光技术和应用前景的分析

文章对高功率二极管泵浦固体激光器的若干关键技术，包括激光二极管和增益介质，泵浦，耦合和冷却技术，以及光学谐振腔等作了详细的分析。     

改进了的光场—boson元激发非线性耦合的激光模型

在我们最近提出的光场Ｂ－ｂｏｓｏｎ元激发耦合激光模型的基础上，通过附加一个抽运系统的速率方程，将原先的激光动力学加以改进，以图整个系统的运作趋于更完备的远离平衡自组织。经过这样改动以后，改进后激光动力系统的速率方程组和描述光场与二能级原子相互作用的麦克斯韦－布洛赫方程组在形式上也有其更加相似之处；两者的自由变量与外控参量都有一一对应关系。     

LD泵浦的声光调Q腔内倍频激光器

研制成用ＬＤ泵浦的声光调Ｑ的Ｎｄ：ＹＶＯ４－ＫＴＰ腔内倍频激光器，得到了ＴＥＭ００模、频率高达１００ｋＨｚ的稳定的５３２ｕｍ绿激光脉冲系列输出，阈值泵浦功率为２７ｍＷ；在连续５７０ｍＷ的泵浦功率下，绿激光脉冲的峰值功率达１１００Ｗ，脉宽为４．６ｕｓ；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％。此种器件可望得到广泛的应用。     

Turnover rates for heptane reforming over Pt/L zeolites with different alkali cations

A series of 0.6 wt% Pt/BaL catalysts with different alkali cations have been tested for heptane reforming at 440 ° C, 0.16 atm heptane, 0.95 atm H₂, 6.7 atm He, 3 to 5 h of reaction, and conversions between 2 and 10%. As the cations in the zeolite are progressively changed from lithium to cesium, the turnover rates for hydrogenolysis and dehydrocyclization increase by about 5–10 times, while the turnover rate for isomerization remains unchanged. Since the turnover rates for hydrogenolysis and dehydrocyclization are similarly affected, exchanging lighter alkali cations for heavier ones increases the aromatics selectivity by a small amount, from 72 to 82%. These results indicate that metal-support interactions have a moderate effect on the heptane reforming activity, but only a weak effect on the selectivity.     

半导体激光泵浦掺钕铍酸镧固体激光器

报道了用国产二极管激光端面泵浦自行研制的掺铵铍酸镧（Ｎｄ：ＢＥＬ）晶体得到１．０７μｍ线偏振激光输出的研究结果。分别用非球面透镜成像、加棱镜对扩束、加光纤传输三种方式将泵浦光耦合到增益介质中，由此得到不同的斜效率，并对此作了分析。     

游梁式抽油机曲柄销所受扭矩分析

在分析游梁式抽油机连杆大头轴承座因装配不当而产生变形的基础上，用有限元法分析了轴承所受的径向力，得出了曲柄销上所受的扭矩。最后，以ＣＹＪ１０－３－５３ＨＢ游梁式抽油机曲柄销为例进行计算，得出当轴承座径向变形量为０．１ｍｍ时，曲柄销中相应产生的扭矩可达１．０８ｋＮ·ｍ。为消除这种不良影响，应考虑采用其他的联接方式，以避免装配时产生过大的装配应力。     

泵站进水池翼型导流板整流特性数值模拟

基于CFX求解器,针对具有通航功能的某小型闸站式侧向进水泵站进水池内的不良流态,开展了翼型导流板正交试验数值模拟研究。计算结果表明:无整流措施下,进水池流态紊乱,1～3号进水池存在大尺度的回旋区,流速分布不均匀,轴向流速分布均匀度仅为76.84%;在离进水池进口1D处设置4个仰角为25°的翼型导流板,进水池大尺度回旋基本消失,流速分布均匀,轴向流速分布均匀度为90.2%,提高了13.36%,水流平顺且均匀对称;翼型导流板可以有效破坏进水池内的回流,迫使破坏后的水流沿其上表面和下表面流动,流速分布均匀性得以改善。