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Investigation of the Flow in the Impeller Side Clearances of a Centrifugal Pump with Volute Casing

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Journal of Thermal Science 2012年第3期21卷 197-208页

作者： Bjrn-Christian Will Friedrich-Karl Benra hans-josef dohmen Institute of Energy and Environmental Engineering TurbomachineryUniversity Duisburg-Essen

The paper is concerned with the fluid flow in the impeller side clearances of a centrifugal pump with volute cas-ing.The flow conditions in these small axial gaps are of significant importance for a number of effects such as disk friction,leakage losses or hydraulic axial thrust to name but a few.In the investigated single stage pump,the flow pattern in the volute turns out to be asymmetric even at design flow rate.To gain a detailed insight into the flow structure,numerical simulations of the complete pump including the impeller side clearances are accom-plished.Additionally,the hydraulic head and the radial pressure distributions in the impeller side clearances are measured and compared with the numerical results.Two configurations of the impeller,either with or without balancing holes,are examined.Moreover,three different operating points,i.e.:design point,part load or overload conditions are considered.In addition,analytical calculations are accomplished to determine the pressure distri-butions in the impeller side clearances.If accurate boundary conditions are available,the 1D flow models used in this paper can provide reasonable results for the radial static pressure distribution in the impeller side clearances.Furthermore,a counter rotating wake region develops in the rear impeller side clearances in absence of balancing holes which severely affects the inflow and outflow conditions of the cavity in circumferential direction.

关键词：离心泵叶轮设计流量侧间隙蜗壳径向压力分布流体流动流动条件轴向间隙

The Brueckner-Hartree-Fock Equation of State for Nuclear Matter and Neutron Skin

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Chinese Physics Letters 2016年第3期33卷 20-23页

作者：卜庆阳李增花 hans-josef Schulze Institute of Modern Physics Fudan University Applied Ion Beam Physics Laboratory(Ministry of Eduction) Fudan University INFN Sezione di Catania

The equation of state for nuclear matter is presented within the Brueckner Hartree-Fock （BHF） scheme, by using the realistic Argonne VI8 or Bonn B two-nucleon potentials plus their corresponding microscopic three-nucleon forces. It is then applied to calculate the properties of finite nuclei within a simple liquid-drop model, and we compare the calculated volume, surface, and Coulomb parameters with the empirical ones from the liquid drop model. Nuclear density distributions and charge radii in good agreement with the experimental data are obtained~ and we predict the neutron skin thickness of various nuclei.

关键词： for on of The Brueckner-Hartree-Fock Equation of State for Nuclear Matter and Neutron Skin BHF is been EOS that

Second-Order Contribution of the Incompressibility in Asymmetric Nuclear Matter

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Chinese Physics Letters 2012年第1期29卷 56-59页

作者：李增花张大鹏 SCHULZE hans-josef 左维 Institute of Modern Physics Department of Nuclear Science and TechnologyFudan UniversityShanghai 200433 Key Laboratory of Applied Ion Beam Physics(Ministry of Education) Fudan UniversityShanghai 200433 Department of Physics Fudan UniversityShanghai 200433 INFN Sezione di Catania Via Santa Sofia 64I-95123 CataniaItaly Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000

With the complementarity of the nucleonic three-body force,we present the saturation points of symmetric nuclear matter with different interactions adopted within the Brueckner-Hartree-Fock scheme,and a more accurate empirical parameterization function for the equation of state of symmetric nuclear matter and pure neutron matter.On the basis of this fit formula,the symmetry energy and its derivatives are investigated,and ultimately the higher-order coefficient of the isobaric incompressibility for isospin asymmetric nuclear matter is predicted.

关键词： symmetric Hartree symmetry

5-Fluorouracil-related enhancement of adenoviral infection is Coxsackievirus-adenovirus receptor independent and associated with morphological changes in lipid membranes

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World Journal of Gastroenterology 2006年第32期12卷 5168-5174页

作者： Chiara Cabrele Mandy Vogel Pompiliu Piso Markus Rentsch josef Schroder Karl W Jauch hans J Schlitt Alexander Beham Department of Surgery Clinic of the Regensburg University Franz-Josef-Strauss-Allee 11D-93053RegensburgGermany

瞄准：评估在 adenoviral 感染上位于 5 氟尿嘧啶(5-FU ) 的效果下面的机制。方法：表示人的结肠癌房间线的低、高的 Coxsackievirus 侵入人体气管粘膜的病菌受体(汽车) 与 5-FU 和二删除 E1 的 adenoviral 构造被对待，一转 GFP (Ad/CM... 详细信息

瞄准：评估在 adenoviral 感染上位于 5 氟尿嘧啶(5-FU ) 的效果下面的机制。方法：表示人的结肠癌房间线的低、高的 Coxsackievirus 侵入人体气管粘膜的病菌受体(汽车) 与 5-FU 和二删除 E1 的 adenoviral 构造被对待，一转 GFP (Ad/CMV-GFP ) 另外的 bax (Ad/CEA-bax ) 。感染的房间的数字被 GFP 表示监视。为了在受体评估 5-FU 的效果，释放系统， Ad/GFP 在 lipo 被包含一些并且与 5-FU 对待。Ad/GFP 版本与上层清液与 293 个房间的 PCR 和感染被估计。建筑群被使调查词法的 Ad5-GFP-liposome 的电子显微镜学在 5-FU 以后 lipo 改变一些。结果：所有房间线的感染率与新兴的 5-FU 集中从 50% ～ 98% 增加了。提高的病毒的举起独立于 CAR 表示。另外， 5-FU 对待一些释放了的 lipo 2-2.5 时间更多的侵入人体气管粘膜的病菌。而且， 5-FU-treated lipo 一些显得不规则并且象多孔一样。结论：不管汽车， Adenoviral 举起面对 5-FU 被提高并且在做两个的联合的膜与词法变化被联系在基因治疗的一种有希望的选择。

关键词： 5-氟尿嘧啶库克萨基病毒形态学病毒感染

Comparison of cauliflower-insect-fungus interactions and pesticides for cabbage root fly control

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Insect Science 2017年第6期24卷 1057-1064页

作者： Jaka Razinger Metka Zerjav Meta Zemljic-Urbancic Spela Modic Matthias Lutz hans-josef Schroers Jurg Grunder Simon Fellous Gregor Urek Agricultural Institute of Slovenia Plant Protection Department Ljubljana Slovenia Agroscope Institut for Pflanzenbauwissenschaften Waedenswil Switzerland Zurich University of Applied Sciences School of Life Sciences and Facility Management Campus Grueental Waedenswil Switzerland INRA Center for the Biology and Management of Populations (CBGP) UMR Montpellier France

Cabbage root fly （Delia radicum L.） control represents a major challenge in brassica production, therefore different management strategies for its control were tested in conventionally managed open field cauliflower production. Strategies included treatments with low-risk methods such as nitrogen lime, the insecticide spinosad and the Beauveria bassiana ATCC 74040-based biopesticide Naturalis. Their effects were compared with treatments based on nonformulated fungal species Metarhizium brunneum, B. bassiana, Clonostachys solani, Trichoderma atroviride, T. koningiopsis, and T. gamsii and commercial insecticides λ-cyhalothrin and thiamethoxam. Spinosad and thiamethoxam were pipetted to individual plants before transplanting; λ-cyhalothrin was sprayed after transplanting; nitrogen lime was applied at first hoeing. Nonformulated fimgi were delivered onto cauliflower plantlets＇ roots as a single pretransplantation inoculation. The cabbage root fly population dynamics exhibited a strong spatiotemporal variation. The lowest number of cabbage root fly pupae recovered from cauliflower roots in the field experiments was recorded in plants treated with spinosad （significant reduction）, followed by Naturalis and one of the tested M. brunneurn strains （nonsignificant reduction）. Significantly more pupae were counted in the nitrogen lime treatment. The field experiments showed that a single drench of cauliflower plantlets with spinosad offered consistent and enduring cabbage root fly control. Naturalis and nonformulated fungal isolates did not decrease cabbage root fly pressure significantly, apparently due to lack of statistical power. The implications of the substantial intra- and inter-annual pest pressure variation and the benefits of using single plant treatments are discussed, and recommendations for improvement of rhizosphere-competence utilizing biological control strategies provided.

关键词： biological control cabbage maggot Delia radicum entomopathogenic fungi plant-insect-microbe interactions rhizosphere competence

Philosophy and Theology in the Islamic Culture： Al-Farabis De scientiis

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Journal of Philosophy Study 2011年第1期1卷 41-51页

作者： Jakob hans josef Schneider Universidade Federal de Uberlandia

Halophily reloaded:new insights into the extremophilic life-style of Wallemia with the description of Wallemia hederae sp.nov

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Fungal Diversity 2016年第1期76卷 97-118页

作者： Sašo Jančič Polona Zalar Dragi Kocev hans-josef Schroers Sašo Džeroski Nina Gunde-Cimerman Department of Biology Biotechnical FacultyJamnikarjeva 101SI-1000 LjubljanaSlovenia Department of Knowledge Technologies Jožef Stefan InstituteJamova cesta 39SI-1000 LjubljanaSlovenia Agricultural Institute of Slovenia Hacquetova 17p.p.2553SI-1000 LjubljanaSlovenia Centre of Excellence for Integrated Approaches in Chemistry and Biology of Proteins(CIPKeBiP) Jamova cesta 39SI-1000 LjubljanaSlovenia

Wallemia comprises air-and food-borne,mycotoxigenic contaminants including the halophilic W.ichthyophaga,xerotolerant W.sebi and xerophilic W.muriae.Wallemia isolates are easily overlooked and only a comparably small number of strains have been deposited in culture collections so far.In order to better understand the natural distribution of Wallemia spp.and to encounter their natural habitats,we tested more than 300 low-water-activity substrates and 30 air samples from a wide geographical coverage.We isolated more than 150 new Wallemia strains.Wallemia sebi and W.muriae were isolated mostly from hypersaline water,low-water-activity foods,plant materials and indoor.Wallemia muriae is the dominant Wallemia species in the air of natural and human influenced environments in Europe.New isolates of W.ichthyophaga were obtained from hypersaline environments such as brine,salt crystals,salty foods and MgCl_(2)-rich bitterns,and from the air of hay barns in Denmark.Five halotolerant strains were recognised as a hitherto un-described species Wallemia hederae,the phylogenetic sister of the halophilic W.ichthyophaga.Wallemia spp.show in-vitro growth on media that contain the chaotropic salt MgCl_(2).Wallemia ichthyophaga can grow in liquid medium enriched with 2 M MgCl_(2).Never before has a microorganism been grown on comparably high MgCl_(2) concentrations.Tests of the activity of a wide range of extracellular enzymes in the presence of NaCl also suggested that Wallemia iswell-adapted to substrates with a reduced water activity.

关键词： Chaophiles Ecophysiology Extracellular enzymes Exudates Machine learning Taxonomy

上奥地利境内的阿尔姆桥——第一座采用预压应力钢棒的预应力混凝土桥

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世界桥梁 1982年第1期 1-8页

作者： hans Reiffenstuhl josef Aichhorn 陈昌言大桥工程局

1.概论预压应力钢棒,即是放在套管内的高强度钢材用油顶加压预施应力。直到1972年为止,实际上的发展已经达到相当成熟的程度,以致现在能考虑在一项较大的工程中予以实施。试验与理论上的探讨均指出,预压应力钢棒能使常规预应力混凝土结... 详细信息

1.概论预压应力钢棒,即是放在套管内的高强度钢材用油顶加压预施应力。直到1972年为止,实际上的发展已经达到相当成熟的程度,以致现在能考虑在一项较大的工程中予以实施。试验与理论上的探讨均指出,预压应力钢棒能使常规预应力混凝土结构的承载能力大大提

关键词：预压应力预应力混凝土板内钢棒预拉应力阿尔奥地利

世界生物精神病学会联合会(WFSBP)关于焦虑障碍、强迫症和创伤后应激障碍的药物治疗指南

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中国心理卫生杂志 2003年第7期17卷 485-507页

作者： Borwin Bandelow josef Zohar Eric Hollander Siegfried Kasper hans-J¨urgen M¨oller WFSBP Task 项志清何燕玲 Department of Psychiatry and Psychotherapy University of GttingenGermany Division of Psychiatry chaim-Sheba Medical CenterTel-HashomerRamat Ganisrael Department of Psychiatry The Mount Sinai School of MedicineNew YorkNYUSA Department of General Psychiatry University of Viennaaustria Department of Psychiatry and Psychotherapy Ludwig-Maximilians-UniversityMunichGermany Force on treatment Guidelines for Anxiety Obsessive-Compulsive and Posttraumatic Stress Disorders 上海精神卫生中心

这篇文章根据现有的随机、安慰剂或参照药物对照临床研究 ,向大家推荐焦虑障碍、强迫症的药物治疗。 5-HT再摄取抑制剂 (SSRI)是治疗惊恐障碍的一线药物。三环类抗抑郁药 (TCA)与SSRI疗效相当 ,但耐受性差。难治性患者 ,如没有药物依赖... 详细信息

这篇文章根据现有的随机、安慰剂或参照药物对照临床研究 ,向大家推荐焦虑障碍、强迫症的药物治疗。 5-HT再摄取抑制剂 (SSRI)是治疗惊恐障碍的一线药物。三环类抗抑郁药 (TCA)与SSRI疗效相当 ,但耐受性差。难治性患者 ,如没有药物依赖和耐受史 ,则可使用苯二氮艹卓类药物如阿普唑仑。由于单胺氧化酶抑制剂 (MAOI)苯乙肼会产生严重的不良反应 ,且会与其他药物和食物成分相互作用 ,因此只有当一线药物无效时才使用。广泛性焦虑者可用万拉法新和SSRI,也可选用丁螺环酮和丙咪嗪。SSRI可作为社交恐怖症的一线药物 ,MAOI、吗氯贝胺和苯二氮艹卓类药物作为二线药物。强迫症最好用SSRI或氯丙咪嗪治疗。

关键词：焦虑障碍强迫症创伤后应激障碍药物治疗 5-HT再摄取抑制剂三环类抗抑郁药单胺氧化酶抑制剂