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Evaluation of soil erosion risk and identification of soil cover and management factor (C) for RUSLE in European vineyards with different soil management

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International Soil and Water Conservation Research 2020年第4期8卷 337-353页

作者： M.Biddoccu g.guzmán g.Capello T.Thielke P.Strauss S.Winter J.g.Zaller A.Nicolai D.Cluzeau D.Popescu C.Bunea A.Hoble E.Cavallo J.A.gómez Institute for Agricultural and Earthmoving Machines(IMAMOTER) National Research Council of Italy(CNR)TorinoItaly Institute for Sustainable Agriculture CSICCordobaSpain Institute for Land and Water Management Research Federal Agency for Water ManagementPetzenkirchenAustria Institute of Plant Protection and Institute of Integrative Nature Conservation Research University of Natural Resources and Life SciencesViennaAustria Institute of Zoology University of Natural Resources and Life Sciences ViennaViennaAustria UniversitéRennes 1 Station Biologique de PaimpontUMR 6553 EcoBio35380PaimpontFrance SC JIDvEI SRI Research DepartmentJidveiRomania University of Agriculture Science and veterinary Medicine Cluj NapocaRomania

vineyards show some of the largest erosion rates reported in agricultural areas in *** rates vary considerably under the same land use,since erosion processes are highly affected by climate,soil,topography and by the adopted soil management *** also shows differences in the effect of same conservation practices on reducing soil erosion from conventional,bare soil based,*** Revised Universal Soil Loss Equation(RUSLE)is commonly adopted to estimate rates of water erosion on cropland under different forms of land use and management,but it requires proper value of soil cover and management(C)factors in order to obtain a reliable evaluation of local soil erosion *** this study the ORUSCAL(Orchard RUSle CALibration)is used to identify the best calibration strategy against long-term experimental ***,ORUSCAL is used in order to apply the RUSLE technology from farm based information across different European wine-growing *** results suggest that the best strategy for calibration should incorporate the soil moisture sub-factor(Sm)to provide better soil loss *** C factor,whose average values ranged from 0.012 to *** a large spatial variability due to coupling with local climate and specific local *** comparison across the five wine-growing regions indicates that for the soil protection management,permanent cover crop is the best measure for accomplishing sustainable erosion rates across the studied *** and temporary cover crops,that are used in areas of limited water resources to prevent competition with vines,failed to achieve sustainable erosion rates,that still need to be *** raises the need for a careful use of C values developed under different environmental conditions.

关键词： vineyard Erosion Soil management RUSLE Europe

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某些稀土掺杂的发光体中的俘获中心参数及其和发光过程的关系(英文)

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发光学报 1990年第3期11卷 167-173页

作者： A. T. Merzlyakov L. A. Benderski E. g. Morozov v. v. gavrilov(NPO "Luminophor", Stavropol, USSR)

本文测定了一些稀土元素掺杂的发光体中的俘获中心的热致和光致电离的能级,所研究的发光体有Sr_3(PO_4)_2:Eu,BaFCl:Fu,Ba_3(PO_4)_2:Eu,YvO_4:Eu,Y_3Al_5O_(12):Ce,YPO_4:Tb和Y_2SiO_4:Ce等。这些发光体中光致和热致电离能级深度之差,明显地大于ZnS中的,由此可以表明这些化合物的离子性较强。本文还揭示了多数俘获中心在光激励下的电荷释放的机理。对Sr_3(PO_4)_2:Eu,Ba_3(PO_4)_2:Eu和Y_2SiO_5:Ce的发光性质研究表明,这些发光体的紫外发射具有激子发射的性质。

关键词：稀土掺杂发光体俘获中心参数

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THERMODYNAMIC CALCULATION MODELS FOR TiO_2-BASEDSLAg MELTS

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Acta Metallurgica Sinica(English Letters) 1997年第1期10卷 17-21页

作者： g.g. Cheng J Zhang and P. Zhao(Department of Metallurgy University of Science and Technology Beijing, Beijing 100083, China) Univ of Science and Technology Beijing Beijing China

In accordance with the coexistence theory of slag structure and slag phase diagrams,the thermodynamic calculation models of MnO-TiO2 and FeO-Fe2 O3-TiO2 slag melts have been deduced. It is shown from the calculated results that, (1) the calculated mass action concentmtions NMno are in good agreement with the measured activities aMnO for MnO-TiO2 slag melt, and (2) the calculated oxidising capabilitg values NFetO are consistent with the obserred results aFeto for FeO-Fe2O3-TiO2 slag ***, the changes of mass action concentrations NFeO with the compositionsof MnO-FeO-TiO2 ternary slag system are estimated based on the thermodynamic data of binary slags.

关键词： coexistence theory,slag activity TiO_2

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Biliary leaks after laparoscopic cholecystectomy:time to stent or time to drain

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Hepatobiliary & Pancreatic Diseases International 2008年第6期7卷 628-632页

作者： Haim Pinkas Patrick g.Brady Division of Digestive Diseases and Nutrition University of South Florida

BACKgROUND:Endoscopic retrograde cholangiopan- creatography(ERCP)with placement of a biliary stent or nasobiliary(NB)drain is the procedure of choice for treatment of post-cholecystectomy bile duct *** aim of this study was to compare the effect of NB drainage versus internal biliary stenting on rates of leak closure, time elapsed until drain or stent removal,length of hospital stay and number of required endoscopic procedures. METHODS:Charts were reviewed on 20 patients who underwent laparoscopic cholecystectomy complicated by Luschka or cystic duct *** patients were treated with NB drains connected to low intermittent suction and repeat NB cholangiograms were performed until leak closure was *** patients were treated with internal biliary *** sphincterotomies were performed for stone extraction or a presumed papillary *** bilomas were drained percutaneously prior to stenting. RESULTS:In all 20 patients,a cholangiogram and successful placement of a NB drain or internal stent was *** patients(20%)were found to have bile duct stones,which were extracted following a sphincterotomy. Sixteen patients required percutaneous drains to evacuate large bilomas prior to biliary *** cystic duct leaks and 5 Luschka duct leaks were reviewed. There were no complications related to *** of the leak was documented within 2 to 11 days(mean 4.7±0.9 days)in patients receiving a NB *** drains were removed non-endoscopically following leak closure. The internal stent group required stenting for 14 to 53 days(mean 29.1±4.4 days).The stent was then removed endoscopically after documentation of leak *** leaks following laparoscopic cholecystectomy closed rapidly after NB drainage and did not require repeat endoscopy for removal of the NB drain,resulting in fewer ERCPs required for treatment of biliary *** biliary stents were in place longer owing to the nature of this intermittent endos

关键词： biliary leak cholecystectomy,laparoscopic endoscopic retrograde cholangiopancreatography nasobiliary drain biliary stent

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Nitric oxide: orchestrating hypoxia regulation through mitochondrial respiration and the endoplasmic reticulum stress response

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Cell Research 2005年第1期15卷 63-65页

作者： Ian g. CHARLES,Salvador MONCADA Wolfson Institute for Biomedical Research University College London The Cruciform Building gower Street London WC1E 6BT UK Wolfson Institute for Biomedical Research University College London The Cruciform Building gower Street London WC1E 6BT UK

Mitochondria have long been considered to be the powerhouse of the living cell, generating energy in the form of the molecule ATP via the process of oxidative phosphorylation. In the past 20 years, it has been recognised that they also play an important role in the implementation of apoptosis, or programmed cell death. More recently it has become evident that mitochondria also participate in the orchestration of cellular defence *** physiological concentrations, the gaseous molecule nitric oxide (NO) inhibits the mitochondrial enzyme cytochrome c oxidase (complex Iv) in competition with oxygen. This interaction underlies the mitochondrial actions of NO, which range from the physiologi- cal regulation of cell respiration, through mitochondrial signalling, to the development of “metabolic hypoxia” – a situation in which, although oxygen is available, the cell is unable to utilise it.

关键词： nitric oxide hypoxia mitochondria endoplasmic reticulum stress.

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Mesenchymal stem cells secretome:current trends and future challenges

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Neural Regeneration Research 2020年第1期15卷 75-77页

作者： Fabio g.Teixeira Antonio J.Salgado Life and Health Sciences Research Institute(ICvS) School of MedicineUniversity of MinhoBragaPortugalICVS/3B’s Associate LabPT Government Associated LabBraga/GuimaraesPortugal

Mesenchymal stem cells(MSCs)secretome:a good candidate for medical biotechnology?Medical biotechnology is currently defined as the application of biotechnological tools for producing multiple technologies and products to health care,becoming an important bridge between different fields,namely neuroscience,regenerative medicine,pharmacology and bio-engineering(Pham,2018).The use and manipulation of stem cells can potentially represent a medical biotechnology breakthrough that brings regenerative medicine to a new ***,over the last decade,the use of stem cells has remarkably been proposed as a regenerative tool,and within it,MSCs have emerged as a promising therapeutic option.

关键词： manipulation breakthrough becoming

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国家自然科学基金计算物理前沿与展望专题·编者按

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中国科学：物理学、力学、天文学 2024年第4期54卷 1-1页

作者：向涛龚新高中国科学院物理研究所复旦大学物理学系

计算物理是过去五十年物理学发展最快的分支之一,作为一门交叉性很强的学科,不再只是一种方法或工具,而已成为与理论物理和实验物理同等重要的物理学研究范式,在理解和发现复杂物理现象、规律和原理中发挥了不可或缺的作用,极大地推动... 详细信息

计算物理是过去五十年物理学发展最快的分支之一,作为一门交叉性很强的学科,不再只是一种方法或工具,而已成为与理论物理和实验物理同等重要的物理学研究范式,在理解和发现复杂物理现象、规律和原理中发挥了不可或缺的作用,极大地推动了物理学的发展.随着人工智能和量子计算等前沿技术的快速发展,计算物理在物理、化学、材料、能源等其他科学和技术中的应用将发挥越来越重要的作用,并可能带来物理学研究方法和内涵的根本性变革.

关键词：国家自然科学基金计算物理物理学研究方法实验物理理论物理物理现象人工智能量子计算

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Ordered exponential and its features in Yang-Mills effective action

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Communications in Theoretical Physics 2023年第8期75卷 119-127页

作者： A v Ivanov N v Kharuk St.Petersburg Department of Steklov Mathematical Institute of Russian Academy of Sciences 27 FontankaSt.Petersburg 191023Russia Leonhard Euler International Mathematical Institute 10 Pesochnaya nab.St.Petersburg 197022Russia

In this paper,we discuss some non-trivial relations for ordered exponentials on smooth Riemannian *** an example of application,we study the dependence of the four-dimensional quantum Yang–Mills effective action on the special gauge transformation with respect to the background ***,we formulate some open questions about a structure of divergences for a special type of regularization in the presence of the background field formalism.

关键词： Yang-Mills effective action ordered exponential heat kernel green's function short-distance asymptotics cutoff regularization Synge's world function

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Oblique closed form solutions of some important fractional evolution equations via the modified Kudryashov method arising in physical problems

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Journal of Ocean Engineering and Science 2018年第3期3卷 244-252页

作者： F.Ferdous M.g.Hafez Department of Mathematics Chittagong University of Engineering and TechnologyChittagong4349Bangladesh

The paper deals with the obliquely propagating wave solutions of fractional nonlinear evolution equations(NLEEs)arising in science and *** conformable time fractional(2+1)-dimensional extended Zakharov-Kuzetsov equation(EZKE),coupled space-time fractional(2+1)-dimensional dispersive long wave equation(DLWE)and space-time fractional(2+1)-dimensional Ablowitz-Kaup-Newell-Segur(AKNS)equation are considered to investigate such physical *** modified Kudryashov method along with the properties of conformable and modified Riemann-Liouville derivatives is employed to construct the oblique wave solutions of the considered *** obtained results may be useful for better understanding the nature of internal oblique propagating wave dynamics in ocean engineering.

关键词： Fractional nonlinear evolution equations Conformable derivative Modified kudryashov method Oblique wave solutions

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Experimental and Theoretical Study of the Effect of Moisture on Methane Adsorption and Desorption by Activated Carbon at 273.5 K

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Journal of Natural gas Chemistry 2007年第1期16卷 22-30页

作者： S.Farzad v.Taghikhani C.ghotbi B.Aminshahidi E.Nemati Lay Department of Chemical and Petroleum Engineering Sharif University of TechnologyTehranIran

Adsorption and desorption of methane by activated carbon （AC） at constant temperature and at various pressures were investigated. The effect of moisture was also studied. A volumetric method was used, up to 40 bar, at a temperature of 273.5 K. Results of a dry AC sample were compared with those obtained from a moist sample and two different ACs with different physical and surface properties were used. As expected, the results showed that the existence of moisture, trapped in the AC pores, could lead to a decrease in the amount of methane adsorbed and a decrease in the amount of methane delivered during desorption. To model the experimental results, a large variety of adsorption isotherms were used. The regressed parameters for the adsorption isotherms were obtained using the experimental data generated in the present study. The accuracy of the results obtained from the different adsorption isotherms was favorably compared.

关键词： activated carbon adsorption adsorption properties thermodynamic analysis

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