干法脱硫剂的优选及在地下储气库的应用

通过实验研究了几种氧化铁型脱硫剂和活性炭脱硫剂的工作特性及各种工艺参数对其穿透硫容的影响。以实验结果为基础,对这两种干法脱硫剂进行了比选。结果表明,氧化铁脱硫剂以EF-2为最佳,活性炭脱硫剂以3018为最佳;评价认为3018具有较高的脱硫效率和安全性,更加适合现场应用。在此基础上,研究了3018浸渍改性活性炭脱硫剂的影响因素,并在大庆油田喇嘛甸储气库进行了应用。应用表明,3018改性活性炭脱硫剂效果较好,天然气净化后H₂S含量低于国家标准。     

大鼠高脂血症建模的改进方法

目的:改进大鼠高脂血症模型的建立方法。方法对脂肪乳处方及配制方法进行改进,采用脂肪乳灌胃建立大鼠高脂血症模型,用酶比色法测定模型组与正常组血清总胆固醇(TC)、甘油三脂(TG)含量。结果模型组大鼠死亡率低,与正常组相比较,TC和TG具有显著差异。结论本造模方法成功率高,切实可行。     

Influence of different illuminations with xenon or microwave sulfur lamp on jointing and tillering of wheat

The emission of microwave sulfur lamp is mainly composed of visible light. The sulfur lamp, producing little infrared radiation, has high efficiency, long duration of illumination and less energy consumption. In order to probe the agricultural application of the lamp, experiments were carried out with wheat (cv. Yangmai 158) to emphatically study illuminating effects of xenon or sulfur lamp on tillering, jointing and net photosynthetic rate during tillering and jointing periods. Results indicated that there is almost no difference in net photosynthetic rate of wheat leaves growing under different lamps. Xenon lamp significantly advanced the time of jointing, decreased number of tillers, number of total leaves per plant and leaf size, as well as inhibited root growth. In contrast with xenon lamp, sulfur lamp evidently delays the time of heading and grain maturation, increased number of heads per plant, head length, total number of grains per plant, head weight and total grain weight per plant, accordingly significantly increased yield per plant. Strong infrared radiation might be the main cause to influence jointing and tillering. The development characteristics of wheat under sulfur lamp were much similar with those in natural condition.     

原子吸收法间接测定益母草注射液中总生物碱含量的研究

文章较详细地研究了原子吸收法间接测定益母草注射液中总生物碱含量的方法。利用硫氰铬氨络阴离子与生物碱在冷水中可定量形成沉淀，过滤后通过测量滤液中过量的铬的含量从而求得体系中总生物碱的含量。该法可用无机物作标样，扩大了原子吸收法的应用范围。方法简便快速，与荧光光度法测定对照，无显著性差异     

甘肃白银矿田典型矿床成因研究

白银矿田的成岩成矿环境为早-中寒武世北祁连裂谷;白银矿田的火山喷发旋回由早→晚为细碧岩-角斑岩-石英角斑岩,含矿火山岩地层为石英斑岩类的石英角斑凝灰岩,层位控制明显;成矿物质主要来源于上地幔;成岩温度850°-1150℃,成矿温度由高→中温.     

拓扑弧的若干特征性质

本文给出了拓扑弧的几种特征性质,改进了 Lennes 定理和 Whyburn 定理。     

B1结构MoN和WN晶体的总能及体弹性模量的计算

本文利用局域密度泛函理论和LMTO ASA方法计算了BI结构的MoN和WN的总能-体积曲线,得到体弹性模量,以及MoN和WN的平衡格常数A_0分别为0.418nm和0.419nm,与实验值符合.并用LMTO-ASA力定理计算了电子波压力,由此讨论了晶体的化学键性质.在总能及电子压力计算中,都采用了与原子球同比例的Muffin tin球面上有效势相等的原则来选定不同原子球半径比,均得到较好的结果.