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Impact of Intensive greenhouse Production System on Soil Quality

Pedosphere 2015年第2期25卷 282-293页

作者： Tarek g.AMMARI Ragheb TAHHAN Nizar AL SULEBI Alaedeen TAHBOUB Rakad A.TA'ANY Samih ABUBAKER Departemnet of Water Resources and Environmental Management Faculty of Agricultural TechnologyAl-Balqa' Applied University Departement of Natural Resources and Environment Faculty of AgricultureJordan University of Science and Technology Department of Plant Production and Protection Faculty of Agricultural TechnologyAl-Balqa' Applied University

Composite top- and subsoil samples were collected from the greenhouses in the Al-Balawneh area,Jordan,where intensive greenhouse production system(IgPS) has been practiced since 1998,to study the impact of IgPS on soil quality as measured by the chemical and biological properties to develop a sustainable production *** study showed that IgPS led to higher electrical conductivity in top- and subsoils compared to an uncultivated soil(control).Quality and amount of irrigation water,lack of efficient drainage,and quantity and types of applied fertilizers were major factors resulting in salt *** resulted in lower total N(TN) and NO_3-N in the soil compared to the *** lower TN was due to crop uptake,microbial immobilization,volatilization,and irregular application of composted animal manure or poultry *** contrast,higher residual Olsen-P content was detected in both soil layers of greenhouses than in the *** P was classified as very high in the topsoil layers and sufficient to high in the subsoil *** available K in the soils of greenhouses was relatively lower than that in the control and it was,however,classified as high to very high.A large increase of Cl and a considerable decrease in the bacterial count were observed in both soil layers of IgPS compared to the control *** sustainable soil management practices need to be adopted by farmers to achieve a sustainable and profitable *** can be accomplished through education,targeted towards the farming community in the central Jordan Valley.

关键词： central Jordan Valley salt buildup soil health soil management unsustainable agriculture practices

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制动力作用下车辆-车站结构耦合系统分析

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振动与冲击 2011年第2期30卷 138-143页

作者：张楠夏禾程潜 g.De Roeck 北京交通大学土建学院北京100044 比利时鲁汶大学土木系

研究制动力作用下车辆-结构耦合系统的分析方法。以刚体动力学方法建立车辆子系统模型,以振型叠加法建立结构子系统模型,以给定的制动加速度时程、简化的Kalker蠕滑理论和轮轨密贴假定分别定义纵向、横向和竖向轮轨间相互作用力,采用时... 详细信息

研究制动力作用下车辆-结构耦合系统的分析方法。以刚体动力学方法建立车辆子系统模型,以振型叠加法建立结构子系统模型,以给定的制动加速度时程、简化的Kalker蠕滑理论和轮轨密贴假定分别定义纵向、横向和竖向轮轨间相互作用力,采用时程积分和时间步内的力-运动状态迭代方式求解运动方程。作为算例,研究了深圳地铁4号线、6号线列车制动于深圳北站时车辆-结构动力耦合系统的动力响应,并对车站结构关键部位的振动状态做出了分析和评价。

关键词：车辆-结构耦合系统地铁列车车站结构制动力

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A NEW TREATMENT FOR INTERFACE OF METAL AND DIELECTRIC IN FDTD METHOD

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Acta Metallurgica Sinica(English Letters) 2001年第1期14卷 42-46页

作者： Z.D. Qian, B. W. Li, E.g. Wang, g.L. Jia and J.C. He (Key laboratory of National Education Ministry for Electromagnetic Processing of Materials, Northeastern University, Shenyang 110006, China) Northeastern Univ. Shenyang 110006 China

A new treatment for interface of metal and dielectric in finite-difference time domain (FDTD) method was presented, further how and why this treatment should be as it is was explained. The FDTD method was developed to compute the low-frequency electromagnetic fields in the metal instead of the traditional high-frequency ones as it was originally proposed. The computational results agreed well with the experimental ones.

关键词： method treatment for interface electromagnetic field numerical simulation

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Properties of polyferric-silicate-sulfate(PFSS) coagulant

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Journal of Environmental Sciences 2000年第2期12卷 107-110页

作者： Bao-yu, g. Qin-yan, Y. Hua-zhang, Z. Yong-hui, S. Dept. of Environmental Engineering Shandong University Jinan 250100 China

Polyferric\|silicate\|sulfate(PFSS),as a new type of coagulant,was prepared by using sodium silicate, sulfuric acid and ferric sulfate as *** zeta potential of hydrolyzate of PFSS under different pH values was *** effects of Fe/SiO\-2 molar ratio and dosage of PFSS on turbidity removal were studied. The relation between the optimum coagulation pH range and Fe/SiO\-2 molar ratio was found and the coagulation mechanism of PFSS was *** experimental results showed that Fe/SiO\-2 molar ratio has an effect on the zeta potential of hydrolyzate, the coagulation performance and the optimum coagulation pH range of PFSS and that PFSS gives the best turbidity removal effect when its Fe/SiO\-2 molar ratio was 1.5.

关键词： inorganic polymer coagulant polyferric\|silicate\|sulfate polymerization of silicic acid zeta potential turbidity removal CLC number: X703 Document code: A

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Measurement of Plasma Parameters of Calcium and Silicon in a Rock Sample Using Laser Induced Breakdown Spectroscopy

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光谱学与光谱分析 2017年第10期37卷 3266-3269页

作者： Uzma g M.Junaid Khalid Alamgir T Samina Department of Physics University of Wah NINVAST National Centre of PhysicsQuaid-e-Azam University

Laser Induced Breakdown Spectroscopic(LIBS)technique was used to detect calcium and silicon in an unknown *** this method plasma was generated by Nd∶YAg laser of wavelength 1 064 nm with energy 400 mJ and pulse duration between 5~*** method was applied for the qualitative as well as quantitative *** the qualitative analysis,the electron number density(Ne)of plasma containing calcium and silicon is determined showing that Neof neutral particles is equivalent to 1016(cm-3)whereas for ionized particles it is 1017(cm-3).Plasma temperature is measured using Boltzmann plot method which must be greater than 10 000 *** ratio method is used for the quantitative analysis shows various elements in abundance with calcium and silicon in majority.

关键词： LIBS Plasma parameter Quantitative analysis Qualitative analysis

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Thermodynamic study of CN^- ion inhibition of Jack bean urease using the extended solvation theory

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Chinese Chemical Letters 2009年第11期20卷 1389-1392页

作者： g.Rezaei Behbehani A.A.Saboury M.Mohebbian S.Tahmasbi Sarvestani M.Poorheravi Chemistry Department Imam Khomeini International UniversityQazvinIran Institute of Biochemistry and Biophysics University of TehranTehranIran Chemistry Department Payame Noor University(PNU)AbharIran

Cyanide ion was studied as an inhibitor of Jack bean urease at 300 K in 30 mmol/L tris buffer, pH 7. The inhibition was investigated by isothermal titration calorimetry （ITC）. The extended solvation model was used for CN^- ＋ JBU interaction over the whole range of CN^- concentrations. The binding parameters recovered from the solvation model were attributed to the cyanide ion interaction. It was found that cyanide ion acted as a non-cooperative inhibitor ofurease, and there is a set of 12 ± 0.12 identical and independent binding sites for CN- ions. The dissociation equilibrium constant is 749.99 umol/L. The molar enthalpy of binding is AH= -13.60 kJ mol^-1.

关键词： Jack bean urease Cyanide ion Isothermal titration calorimetry Binding parameters Inhibitor

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Improvement of quantitative testing of liver function in patients with chronic hepatitis C after installment of antiviral therapy

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World Journal of gastroenterology 2005年第35期11卷 5521-5524页

作者： Matthias Ocker Marion ganslmayer Steffen Zopf Susanne gahr Christopher Janson Eckhart g. Hahn Christoph Herold Department of Medicine I University Erlangen-Nuernberg Ulmenweg 18 Erlangen 91054 Germany

MM： To investigate if and to what extent antiviral therapy influenced a broad panel of quantitative testing of liver function （QTLF）. METHODS： Fifty patients with chronic hepatitis C were either treated with interferon （n = 8）, interferon/ribavirin （n = 19） or peg-interferon/ribavirin （n = 23）. Quantitative testing of liver function, including aminopyrine breath test （ABT）, galactose elimination capacity （gEC）, sorbitol clearance （SCI） and indocyanine green clearance （ICg） was performed before and 3 mo after initiation of antiviral therapy. RESULTS： After 3 mo of antiviral treatment, 36 patients showed normal transaminases and were negative for HCVRNA, 14 patients did not respond to therapy. ABT and gEC as parameters of microsomal and cytosolic liver function were reduced in all patients before therapy initiation and returned to normal values in the 36 therapy responders after 3 too. Parameters of liver perfusion （SCl and ICg） were not affected by antiviral therapy. In the 14 non-responders, no changes in QTLF values were observed during the treatment period. CONCLUSION： ICg and SCI remained unaffected in patients with chronic hepatitis C, while ABT and gEC were significantly compromised. ABT and gEC normalized in responders to antiviral therapy. Early determination of ABT and gEC may differentiate responders from non-responders to antiviral treatment in hepatitis C.

关键词： Aminopyrine breath test galactose eliminationcapacity Indocyanine green clearance Sorbitol clearance Hepatitis C Interferon Ribavirin

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Advanced architecture designs towards high-performance 3D microbatteries

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Nano Materials Science 2021年第2期3卷 140-153页

作者： Yang Li Jiang Qu Fei Li Zhe Qu Hongmei Tang Lixiang Liu Minshen Zhu Oliver g.Schmidt Material Systems for Nanoelectronics Chemnitz University of Technology09107 ChemnitzGermany Institute for Integrative Nanosciences Leibniz IFW Dresden01069 DresdenGermany Center for Materials Architectures and Integration of Nanomembranes(MAIN)Chemnitz University of Technology09126 ChemnitzGermany School of Science Dresden University of TechnologyDresden01062Germany

Rechargeable microbatteries are important power supplies for microelectronic *** essential targets for rechargeable microbatteries are high output energy and minimal footprint *** addition to the development of new high-performance electrode materials,the device configurations of microbatteries also play an important role in enhancing the output energy and miniaturizing the footprint *** make a clear vision on the design principle of rechargeable microbatteries,we firstly summarize the typical configurations of *** advantages of different configurations are thoroughly discussed from the aspects of fabrication technologies and material *** the high energy output at a minimal footprint area,a revolutionary design for microbatteries is of great *** this perspective,we review the progress of fabricating microbatteries based on the rolled-up nanotechnology,a derivative origami ***,we discussed the challenges and perspectives in the device design and materials optimization.

关键词： Microbatteries Origami technologies Rolled-up nanotechnology 3D devices Energy storage performance

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Light-induced halide segregation in perovskites with wrinkled morphology

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Journal of Energy Chemistry 2022年第8期31卷 83-88,I0003页

作者： Eduardo g.Machado Paulo E.Marchezi Eralci M.Therézio JoséCarlos germino Rodrigo Szostak Caique Sde Brito Yara g.gobato Ernesto C.Pereira Michael F.Toney Raphael Nagao Ana Flávia Nogueira Institute of Chemistry University of CampinasCampinas 13083-970 SPBrazil Center for Innovation on New Energies University of CampinasCampinas 13083-970SPBrazil Institute of Physics Federal University of Mato GrossoCuiaba 78060-900MTBrazil Department of Physics Federal University of Sao CarlosSao Carlos 13565-905SPBrazil Department of Physics and i3N–Institute for Nanostructures Nanomodulation and NanofabricationUniversity of AveiroAveiro 3810-193Portugal Department of Chemistry Federal University of Sao CarlosSao Carlos 13565-905SPBrazil Renewable and Sustainable Energy Institute(RASEI) University of Colorado BoulderBoulder CO 80309ColoradoUnited States of America

In this work, it is proposed that, upon light incidence, a halide segregation event takes place, where iodine anions move towards the hills of a wrinkled mixed-halide perovskite.

关键词： halide perovskite iodine

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One step synthesis of pyrido[1,2-a]benzimidazole derivatives of aryloxypyrazole and their antimicrobial evaluation

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Chinese Chemical Letters 2013年第2期24卷 123-126页

作者： Hardik H.Jardosh Chetan B.Sangani Manish P.Patel Ranjan g.Patel Department of Chemistry Sardar Patel UniversityVallabh Vidyanagar-388120GujaratIndia

Received 3 September 2012 Received in revised form 16 October 2012 Accepted 31 December 2012 Available online 6 February 2013

关键词： AryloxypyrazolePyrido[ 1 2-a]benzimidazoleMulticomponent reactionAntimicrobial activity

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