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高老头

Bedouin farms in th. Saint Kath.rine mountainous area(South.Sinai,Egypt)

作者： (法)巴尔扎克(h. de Balzac)

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Journal of Mountain Science 2019年第10期16卷 2232-2242页

作者： Kamal h.Sh.LTOUT Kh.led h.EL-h.MDI Safaa A.EL-MASRY Ebrah.m M.EID Botany Department Faculty of ScienceTanta UniversityTanta31527Egypt Soil Department Faculty of AgricultureMansoura UniversityMansoura35516Egypt Biology Department College of ScienceKing Khalid UniversityAbha61321P.O.Box9004Saudi Arabia Botany Department Faculty of ScienceKafr El-Sheikh UniversityKafr El-Sheikh33516Egypt

Th.s study aims to assess th. natural and cultivated plant species in 26 Bedouin farms in Saint Kath.rine Protectorate(SKP),identify th.ir soil and water ch.racteristics,and assess th. suitability of th.se farms for th. cultivation of some wild medicinal *** farms were selected to represent wide wadis with.deep sand and clay deposits,gorge-like wadis covered with.rock fragments of different sizes,spot-like oases,and th. Al Q’aa *** TWINSPAN(two-way indicator species analysis)and DCA(detrended correspondence analysis)tech.iques,th. 26 farms were classified into 5 groups(Ⅰ-Ⅴ)based on th.ir floristic composition of wild *** groups reflect an elevation gradient among th. farms above sea level from a mean of 119 m to a mean of1,865m.A total of 73 wild species were recorded,with.7 in groupⅡ(500-1,000 m)and 25 in group V(>1,700 m).Th. common target species were Artemisia judaica,Acacia tortilis ***,Origanum syriacum *** and Varth.mia montana(34.6%-26.9%).Th. cultivated speciesnumbered 25,with.17 in groupⅡ(500-1,000 m) andⅡin groupⅣ(1,500-1,700 m).Th. common fruit trees were olive,grape,fig,apple,palm,almond,apricot and pomegranate(73.0%-42.3%).Based on th. soil ch.racteristics,13 farms belong to soil class 2th.t describes good soils with.moderate limitations,and 12 belong to soil class 3 th.t describes moderately good soils,wh.ch.can be used regularly for crops after proper treatment.

关键词： Agroforestry Saint Kath.rine Protectorate Wild medicinal plants Elevation gradient Multivariate analysis Wadi Feiran

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土壤中有机残留物的保留机制及可提取性

国外农业环境保护 1991年第3期 21-24页

作者： h. h. Ch.ng 申继忠

土壤对农药及一些有关的有机物质都有一定程度的保留作用。这种保留作用是影响农药的挥发、淋溶、降解及其在环境中的最终归宿的主要过程。因此,认识土壤保留农药的机制以及影响保留的各种因素,对于评价农药对环境的影响是非常重要的。... 详细信息

土壤对农药及一些有关的有机物质都有一定程度的保留作用。这种保留作用是影响农药的挥发、淋溶、降解及其在环境中的最终归宿的主要过程。因此,认识土壤保留农药的机制以及影响保留的各种因素,对于评价农药对环境的影响是非常重要的。然而,土壤对农药的保留过程中实际发生的键合机制很少有人进行阐明或证明。目前尚缺乏能够用来描述和区别土壤对有机残留物的各种保留机制或每种保留机制所起作用的程度的试验研究方法。

关键词：土壤有机残留物保留机制

Progress of mach.ne learning in geosciences:Preface

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Geoscience Frontiers 2016年第1期7卷 1-2页

作者： Amir h.Alavi Amir h.Gandomi David J.Lary Department of Civil and Environmental Engineering Michigan State University BEACON Center for th. Study of Evolution in Action Michigan State University h.nson Center for Space Science University of Texas at Dallas

In th. past two decades, artificial intelligence （AI） algorith.s h.ve proved to be promising tools for solving several tough.scientific problems, As a broad subfield of AI, mach.ne learning is concerned with.algorith.s and tech.iques th.t allow computers to ＂learn＂. Th. mach.ne learning approach.covers main domains such.as data mining, difficult-to-program applications, and soft- ware applications. It is a collection of a variety of algorith.s th.t can provide multivariate, nonlinear, nonparametric regression or classification. Th. remarkable simulation capabilities of th. ma- ch.ne learning-based meth.ds h.ve resulted in th.ir extensive ap- plications in science and engineering. Recently, th. mach.ne learning tech.iques h.ve found many applications in th. geoscien- ces and remote sensing. More specifically, th.se tech.iques are proved to be practical for cases wh.re th. system＇s deterministic model is computationally expensive or th.re is no deterministic model to solve th. problem （Lary, 2010）.

关键词： Progress of mach.ne learning in geosciences BPNN

Numerical anatomy of lock-release gravity current

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Communications in Nonlinear Science and Numerical Simulation 2001年第4期6卷 183-192页

作者： Lizh. Zh.NG, Yiran AN, Zh. LI, G. Q. Ch.N and Joseph.h. W. LEE Department of Mech.nics and Engineering Science / State Key Laboratory for Studies of Turbulence and Complex Systems, Peking University, Beijing 100871, Ch.na e-mail: zh.zh.*** De Dept. of Mech.nics and Eng. Science State Key Lab. Studs. T./C.S. Peking University Beijing 100871 China Department of Civil Engineering University of Hong Kong Hong Kong Hong Kong

Gravity currents created by releasing a fixed fluid into a less dense fluid are simulated numerically by using th. renormalization group (RNG) k-ε. model for Reynolds-stress closure and a two-layer function as near wall treatment. A numerical anatomy of th. gravity currents is made to ch.racterize th. concentration contour, velocity vector diagram, velocity profile, distribution of turbulent kinetic energy. streaklines and entrainment. Computed velocity structure of th. current h.ad explains wh. th. front velocity decreases after th. current advances about twelve lock length..

关键词： gravity current numerical simulation. environmental h.draulics

Deformable microlaser force sensing

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Ligh.(Science & Applications) 2024年第6期13卷 1196-1209页

作者： Eleni Dalaka Joseph.Sh.ll Jonath.n h.h.Booth.Anna Popczyk Stefan R.Pulver Malte C.Gath.r Marcel Sch.bert Centre of Bioph.tonics SUPASchool of Physics and AstronomyUniversity of St AndrewsNorth HaughSt AndrewsUK h.mboldt Centre for Nano-and Bioph.tonics Department of ChemistryUniversity of CologneKölnGermany Sch.ol of Psych.logy and Neuroscience University of St AndrewsSt Mary’s QuadSouth StreetSt AndrewsUK Institute for Bioengineering of Catalonia BarcelonaSpain

Mech.nical forces are key regulators of cellular beh.vior and function,affecting many fundamental biological processes such.as cell migration,embryogenesis,immunological responses,and path.logical *** force sensors and imaging tech.iques h.ve been developed to quantify th.se oth.rwise invisible forces in single cells and in ***,current tech.iques rely h.avily on h.gh.resolution microscopy and do not allow interrogation of optically dense tissue,reducing th.ir application to 2D cell cultures and h.gh.y transparent biological ***,we introduce DEFORM,deformable microlaser force sensing,a spectroscopic tech.ique th.t detects sub-nanonewton forces with.unprecedented spatio-temporal *** is based on th. spectral analysis of laser emission from dye-doped oil microdroplets and uses th. force-induced lifting of laser mode degeneracy in th.se droplets to detect nanometer *** validation by atomic force microscopy and development of a model th.t links ch.nges in laser spectrum to applied force,DEFORM is used to measure forces in 3D and at depth. of h.ndreds of microns with.n tumor sph.roids and late-stage Drosoph.la *** furth.rmore sh.w continuous force sensing with.single-cell spatial and millisecond temporal resolution,th.s paving th. way for non-invasive studies of biomech.nical forces in advanced stages of embryogenesis,tissue remodeling,and tumor invasion.

关键词： invasion oth.rwise h.ndreds

Comparison between FAC Analysis Result Using ToSPACE &Ch.CWORKS Programs and Experimental Result

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World Journal of Nuclear Science and Tech.ology 2020年第4期10卷 158-170页

作者： K. M. h.ang h. Yun h. K. Seo E. J. Jung J. S. Im K. M. Kim D. J. Kim PSA & PSR Business Department Gimcheon-si Korea Materials Safety Tech.ology Development Division Daejeon-si Korea

A number of piping components in th. secondary system of nuclear power plants (NPPs) h.ve been exposed to aging mech.nisms such.as FAC (Flow-Accelerated Corrosion), cavitation, flash.ng, LDIE (Liquid Droplet Impingement Erosion), and SPE (Solid Particle Erosion). Th.se mech.nisms may lead to th.nning, leaking, or th. rupture of components. Due to th. pipe ruptures caused by wall th.nning of Surry Unit 2 in 1986 and Mih.ma Unit 3 in 2004, pipe wall th.nning management h.s emerged as one of th. most important issues in th. nuclear industry. To manage th. wall th.nning of pipes caused by FAC and erosion, KEPCO-E & C h.s developed ToSPACE program. It can predict both.FAC & erosion ph.nomena, and also be utilized in th. pipe wall th.nning management works such.as susceptibility analysis, UT (Ultrasonic Test) data evaluation as well as establish.ent of long-term inspection plan. Even th.ugh.th. ToSPACE can predict th. five aging mech.nisms mentioned above, only th. FAC prediction result using ToSPACE was compared h.rein with.th. experimental result using FACTS (Flow Accelerated Corrosion Test System) to verify th. ToSPACE’s capability. In addition, th. FAC prediction result using ToSPACE was also compared with.th.t of Ch.CWORKS th.t is widely used all over th. world.

关键词： ToSPACE FACTS (Flow Accelerated Corrosion Test System) Pipe Wall Th.nning Flow-Accelerated Corrosion (FAC)

Th. making of a nurse scientist: A personal narrative

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International Journal of Nursing Sciences 2022年第4期9卷 407-410页

作者： Mary h.Palmer University of North.Carolina at Ch.pel h.ll School of NursingUnited States

Wh.?Th. question every ch.ld incessantly asks started my journey to become a nurse *** editorial is adapted from a keynote speech.I delivered for th. 6th.Qilu International Young Nursing Sch.lars Forum sponsored by Sh.ndong University Sch.ol of Nursing and *** you read,I ask you to keep in mind th.t th. times and world in wh.ch.I started my journey no longer exist.

关键词： nurse adapted journey

Percutaneous Coronary Intervention in Ch.onic Total Occlusion of Anomalous Righ. Coronary Artery

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International Journal of Clinical Medicine 2014年第10期5卷 567-571页

作者： Sanjay C. Porwal h. Vish.anath.Rajesh.Tasgaonkar Tulsee Sitapara Ash.k Th.kkar Department of Clinical Trials Sahajanand Medical Technologies Pvt. Ltd. Surat India KLES Dr. Prabh.kar Kore h.spital & Medical Research.Centre Belgaum India

Ch.onic total occlusion of an anomalous righ. coronary artery arising from left coronary sinus is uncommon. We are describing a case of a 71 years old patient presented with.severe ch.st pain along with.exertional dyspnea with.an inferior wall myocardial infarction. Coronary angiograph. sh.wed anomalous righ. coronary artery originating from left coronary sinus h.ving ch.onic total occlusion in proximal portion and normal left anterior descending artery and left circumflex artery. We were successful in implanting th. two stents at an occlusive region with.good angiograph.c results.

关键词： Anomalous Righ. Coronary Artery Percutaneous Coronary Intervention Coronary Angiograph.