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The forbidden transitions for magnesium isoelectronic sequences

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原子与分子物理学报 2001年第3期18卷 317-324页

作者： YI You-gen 1,2,3., ZHU Zheng-he 2,TANG Yong-jian 3.ZHENG Zhi-jian 3.(1.Department of Physics, Xiangtan Normal College,Xiangtan 411201 2.institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065 3.Southwestern institu 湘潭师范学院湖南湘潭 411201 四川大学四川成都 610065 中国工程物理研究院西南核物理与化学所四川成都 610003

Using the full relativistic quantum mechanics (GRASP2), we have calculated systematically the 3. 2- 3. 1 and 3. 1- 3. 0 magnetic dipole M1 energy level separations, transition probabilities and oscillator strengths in the 3.3. configuration of the magnesium sequences. The two configurations 3.3. and 3.3. are used. Breit and QED effects are treated as high-order perturbations. Excellent comparison is obtained throughout the range of atomic number Z, and the inclusion of the 3.3. configuration gives results which are in good agreements with recent experimental and reference data.

关键词：镁原子禁戒跃迁等电子数序

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瘀血痹冲剂治疗类风湿性关节炎的药理研究

沈阳药科大学学报 2001年第6期18卷 431-435页

作者：索德全潘文军于大海牟孝硕黄永军沈阳军区总医院辽宁沈阳110016 沈阳药科大学药学院辽宁沈阳110016 辽宁省药品检验所辽宁沈阳110023

瘀血痹冲剂是中华全国中医学会内科学会推荐的主要用于治疗类风湿性关节炎的中药制剂 ,经药理学证明 ,该药能明显的抑制由弗氏完全佐剂所造成的大鼠关节肿胀作用 ,使肿胀率明显下降 ,抑制率明显升高 ,并能减轻大鼠耳部红斑 ,尾部结节出... 详细信息

瘀血痹冲剂是中华全国中医学会内科学会推荐的主要用于治疗类风湿性关节炎的中药制剂 ,经药理学证明 ,该药能明显的抑制由弗氏完全佐剂所造成的大鼠关节肿胀作用 ,使肿胀率明显下降 ,抑制率明显升高 ,并能减轻大鼠耳部红斑 ,尾部结节出现的程度 ;在治疗实验中 ,亦能明显对抗由完全佐剂所造成的大鼠另一侧迟发型超敏反应性足垫肿胀 ;2 3.观察期间内 ,无论是治疗组还是预防组 ,未见到大鼠体重有明显变化 ;对大鼠胸腺、肾上腺、脾脏除大活络丹组胸腺脏器系数有明显降低外 ,对其它脏器系数各剂量组没有明显变化 ;瘀血痹冲剂可明显对抗由角叉菜胶引起的实验性足跖肿胀 ;大剂量的瘀血痹冲剂可提高动物的免疫功能 ,可明显的对抗由 2 ,4 二硝基氯苯所致小鼠耳廓皮肤迟发型超敏反应 ;亦可提高小鼠对印度墨汁的廓清指数。瘀血痹冲剂可明显的升高小鼠疼痛抑制百分率 ,明显对抗由醋酸引起的疼痛反应。

关键词：瘀血痹冲剂类风湿性关节炎毛细血管通透性迟发性超敏反应中药药理学免疫功能调节

论油田化学作用机理研究对油田化学专用技术创新的贡献

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天然气工业 2004年第9期24卷 97-100页

作者：周效全中国石油西南油气田分公司天然气研究院

油田化学专用技术的核心是各种功能的油田化学药剂和由此形成的多系列的油田化学工作液体系。而油田化学药剂是油气田勘探、开发、生产和输运等过程中必须的化学物质 ,它的功能和质量直接影响着钻井质量、采收率和油气生产综合开发成本... 详细信息

油田化学专用技术的核心是各种功能的油田化学药剂和由此形成的多系列的油田化学工作液体系。而油田化学药剂是油气田勘探、开发、生产和输运等过程中必须的化学物质 ,它的功能和质量直接影响着钻井质量、采收率和油气生产综合开发成本。油田化学药剂的创新离不开油田化学作用机理研究的创新、突破与发展 ,文章以滤失控制变粘酸酸液体系配方技术、高粘型W /O自动破乳乳化酸酸液体系配方技术、低粘型W/O自动破乳乳化酸酸液体系配方技术、自动防乳破乳胶束酸酸液体系配方技术、无聚合物自转向酸液体系配方技术、EOR采油用疏水缔合聚合物体系配方技术、缓释放技术在油田化学工作液体系配方技术和两性离子聚合物钻井液体系配方技术等方面的油田化学新作用机理研究的创新突破与发现为例 ,论述了油田化学新作用机理研究与发现对油田化学专用技术创新应用的贡献。

关键词：油田化学酸液乳化酸钻井质量两性离子聚合物钻井液滤失 EOR 技术创新体系配方技术

Derivation of sea surface current field from sequential satellite images of the East China Sea

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Acta Oceanologica Sinica 1998年第4期17卷 459-468页

作者： Liu Qingge, (Department of Science and Technology, State Oceanic Administration, Beijing 100860, China)Pan Delu, Pan Yuqiu, (Second institute of Oceanography, State Oceanic Administration, Hangzhou 3.0012, China)Lutz Bannehr and Guenter Warnecke (institu Department of Science and Technology State Oceanic Administration Beijing 100860 China Second institute of Oceanography State Oceanic Administration Hangzhou 310012 China institute of Meteorology Free University of Berlin D-14159 Berlin Germany

A series of NOAA AVHRR data over the East China Sea were collected from the ground station of the Second institute of Oceanography, Hangzhou, China. Three methods, including a functional analytic method (FAM), a maximum cross correlation (MCC)'method and a correlation relaxation (C - R) method, are applied to derive the sea surface current field from sequential satellite images in the area of the East China Sea. Several preprocessing steps, such as geometric correction, SST determination, image projection, image navigation and grey value normalization as well as land and cloud mask are performed. The results from the three methods reflect the general current system in this area reasonably.

关键词： Sea surface current field sequential satellite images East China Sea

EXPERIMENTAL STUDY OF FRETTING WEAR OF TITANIUM ALLOY BEFORE AND AFTER LASER BEAM QUENCHING

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Chinese Journal of Aeronautics 1997年第3期10卷 48-53页

作者： Dai Zhendong, Tang Yaxing, Zhang Hong, Wang Min (Department of Mechanical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China) Yang Shenrong, Zhang Xueshou (Laboratory of Solid Lubrication, Lanzhou institu Department of Mechanical Engineering Nanjing Univ. Aero. and Astronaut. Nanjing 210016 China Laboratory of Solid Lubrication Lanzhou Inst. of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China

The effects of amplitudes, normal loads and laser beam quenching on the fretting wear of titanium alloy (TC11) were experimentally investigated on SRV fretting wear test machine in air, at room temperature and without lubrication conditions. The purpose of this study is to learn the rules of fretting wear in a disk blades dovetail joint of an aircraft turbine so the test parameters are determined based on the relative movement and load in the joint. The wear depths are measured by a profilometer, the worn areas are observed and measured by an optical microscopy, and the microtopography of the worn scar is studied by scanning electron microscopy (SEM) .The tests and observations state clearly that fretting wear rate (FWR) is heavily influenced by sliding amplitude(SA) and load. In this experiment, if SA is greater than 60 μm at Hertz contact stress 105 MPa, the FWR is much higher, and the SEM makes it known that the wear mechanism is the combination of adhesive and contact fatigue in the above test conditions. In contrast, if SA smaller, the FWR lower too, and the SEM suggests that the major wear mechanism is contact fatigue. The experiments also reveal that the laser beam quenching greatly improve the fretting wear resistance of titanium alloy, especially at heavy load and large amplitude.

关键词： fretting wear laser beams quenching (cooling) titanium alloys

NUMERICAL STUDY ON ENVIRONMENTAL IMPACTS OF THE THIRD SHANGHAI SEWERAGE PROJECT

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International Journal of Sediment Research 2002年第2期17卷 165-173页

作者： Cheng LIU1, Yun HE2, Joseph Hun-Wei LEE3.and Zhao-Yin WANG4 1 Dr., Asso. Prof., International Research and Training Center on Erosion and Sedimentation, Beijing, 100044, China & Anhui institu Dr. Asso. Prof. International Research and Training Center on Erosion and Sedimentation Beijing 100044 China & Anhui Institute of Architecture Hefei 230022 China Lecturer Anhui Institute of Architecture Hefei 230022 China Prof. The University of Hong Kong Hong Kong China Prof. Dept. of Hydraulic Engineering Tsinghua University & International Research and Training Center on Erosion and Sedimentation Beijing 100084 China

Two-dimensional hydrodynamic simulation for the Yangtze Estuary is performed by using the Delft3. model adopting the shallow water equations and the finite volume method on a curvilinear body-fitted grid. The model is calibrated and validated using available tidal data and field measurements. The velocity vector fields, the tidal levels, the trajectories of drogues and the far field sewage dilution from the existing and proposed outfalls are studied for the spring/neap tide and the dry/wet season. The results show that the tidal currents and the runoff flow are able to dilute and disperse the sewage from the outfalls to the outer sea. The sewage dilution contours under various hydrodynamic conditions indicate that the discharged effluent at present have relatively minor impact on the water environment of the Yangtze Estuary; whereas the planned sewage plan would significantly deteriorate the water quality of the estuary in the absence of any treatment, especially during the neap tide of dry season. The drogue tracking shows that the effluent from the four outfalls will be transported downstream to the Hangzhou Bay. A study on the pollution due to the project and the self-purification capacity of Hangzhou Bay is proposed in addition to that of the Yangtze Estuary.

关键词： Hydrodynamic simulation Outfall Far field sewage dilution Drogue tracking

1×4 MMI Splitter Based on Rib SOI Waveguide

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Chinese Journal of Lasers 2000年第6期 46-51页

作者： Supported by the National Natural Science Foundation of China under grant No.69896260 and No.69990540.WEI Hongzhen 1 YU Jinzhong 1 LIU Zhongli 2 Wang Qiming 1 FANG Changshui 3.( 1 State Key Laboratory on Integrated optoelectronics, institu

In this paper, a 1×4 MMI splitter based on silicon on insulator (SOI) by effective index method and guide mode method is designed. The fabrication tolerance was analyzed. The device was fabricated and near field outp... 详细信息

关键词： SOI multimode interference splitter integrated opt?

All-Optical Bypass-Exchange Switches

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Chinese Journal of Lasers 1998年第2期 37-46页

作者： YUN Zhisheng LI Yulin LIU JifangXU Xuemei +) LIU Muxing+)(Xian institute of Optics & Precision Mechanics, Chinese Academy of Sciences,P.O.Box 80(24), Xian 710068, China +)Dept. of Instrumental Engineering, Xian institu

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关键词： optical bypassexchange switch electricoptic effect phase modulation

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修正轨道设计的自然曲线法

天然气工业 2001年第5期21卷 55-57页

作者：何树山吉林油田刘修善中国石化石油勘探开发研究院

修正轨道设计一直是井眼轨道监控技术中的研究热点。以往的修正轨道设计方法多采用空间圆弧法和圆柱螺线法 ,它们都是采用两段式剖面。空间圆弧法是在第一个井段上同时完成对井斜和方位的调整 ,然后稳斜稳方位钻进 ;而圆柱螺线法则是在... 详细信息

修正轨道设计一直是井眼轨道监控技术中的研究热点。以往的修正轨道设计方法多采用空间圆弧法和圆柱螺线法 ,它们都是采用两段式剖面。空间圆弧法是在第一个井段上同时完成对井斜和方位的调整 ,然后稳斜稳方位钻进 ;而圆柱螺线法则是在两个井段上分别调整井斜角和方位角。文章提出的自然曲线法可以在每个井段上都存在方位的变化 ,从而解决了造斜段伴随方位变化的轨道设计和考虑方位漂移的轨道设计问题。当某个井段上没有方位变化时 ,计算模型会得到简化 ,并由此验证了圆柱螺线法只是自然曲线法的一个特例。文中给出了上述 3.典型情况下的修正轨道设计方法和设计实例。

关键词：定向井石油钻井水平井轨道设计数学模型井眼轨迹自然曲线法