物质平衡法测油井液面

物质平衡法通过测试环空中的气体排量折算出真实的环空液面，可以克服双频道回声仪所遇到的困难，为分析泵效、折算地层压力及区块注水补充地层能量提供依据。中原油田采油二厂研制的拟液面测试仪既能用于有泡沫段的油井，又可用于无泡沫段的油井，对于井深超过2500m的油井更适宜。     

抽油机球铁齿轮的化学成分及生产工艺

为提高抽油机减速器齿轮铸件的机械性能，提出以Sn代替Mo作为合金元素，并通过试验确定了合理的Si、Cu、Sn的加入量。指出Si加入量应控制在1．9％－2．1％范围内，同时加入0．36％～0．9％的Cu和0．025％～0．07％的Sn，可保证球铁的强度和延伸率都满足QT700－2的要求。鉴于试件与实际铸件的表面硬度有一定的差值，为提高铸件表面硬度，进行了余热正火试验，并给出了铸件在铸型内的时间－冷却温度曲线。最后根据球铁化学成分的选择结果，进行了齿轮生产试验。     

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。