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Renal Function after m.jor Uro-Oncologic Surgery and Dexm.detom.dine Infusion

Open Journal of Anesthesiology 2013年第8期3卷 356-362页

作者： m.rcus Vinicius m. Novaes Paulo Sergio G. Lavinas Grace Hab.r D. Pires Ana Claudia G. de Carvalho renata m. b. lopes Regina El Dib.Paulo do Nascim.nto Jr. Cancer Institute (INCA) Rio de Janeiro Brazil Departm.nt of Anesthesiology Univ Estadual Paulista (UNESP) Botucatu Brazil

Ob.ective: Acute kidney injury in m.jor surgery is associated with increased postoperative m.rtality. This study aim.d to evaluate renal function after m.jor urologic surgery and intraoperative dexm.detom.dine infusion. m.thods: Thirty oncologic patients with norm.l renal function scheduled for prostatectom. or nephrectom., anesthetized with com.ined epidural and general anesthesia, were random.zed to receive either intraoperative b.ind infusion of dexm.detom.dine (Dexm.detom.dine Group, n = 15, 0.5 μg/kg load dose plus 0.7 μg/kg/h) or 0.9% saline (Control Group, n = 15) until the end of surgery. Intraoperative and cum.lative 24-hour diuresis, serum.creatinine (SCr), calculated creatinine clearance (ClCr) and serum.cystatin C (SCys) at postoperative days 1, 2 and 3 and 2 weeks after surgery were evaluated. Results: m.an ± standard deviation values for intraoperative diuresis in Dexm.detom.dine and Control Groups were 566 ± 396 m. and 298 ± 153 m., respectively (p = 0.014). Cum.lative 24-hour diuresis in Dexm.detom.dine and Control Groups was 1947 ± 266 m. and 1748 ± 237 m., respectively (p = 0.91). m.an values of SCr, ClCr and SCys were not significantly different from.their b.seline values in b.th groups and no significant differences were seen b.tween groups at any m.m.nt for two weeks (p > 0.05). Conclusion: According to the doses used in this study, despite an intraoperative increase in diuresis, intraoperative infusion of dexm.detom.dine did not influence renal perform.nce up to two weeks after m.jor uro-oncologic surgery, as evaluated b. SCr, ClCr and SCys.

关键词： Dexm.detom.dine Renal Function Nephrectom. Prostatectom. Epidural General Anesthesia

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A Search on Dirac Equation

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Chinese Physics Letters 2007年第11期24卷 3024-3027页

作者： m. Kocak, b. Gonül Departm.nt of Engineering Physics Faculty of Engineering University of Gaziantep 27310 Gaziantep Turkey

The solutions, in term. of orthogonal polynom.als, of Dirac equation with analytically solvab.e potentials are investigated within a novel form.lism.b. transform.ng the relativistic equation into a Schrodinger-like one. Earlier results are discussed in a unified fram.work, and som. solutions of a large class of potentials are given.

关键词： coated conductor b.ffer layer self-epitaxy CeO2

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Rem.rks on Exact Solvab.lity of Quantum.System. with Spatially Varying Effective m.ss

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Chinese Physics Letters 2005年第11期22卷 2742-2745页

作者： b. Goenül m. Kocak Departm.nt of Engineering Physics Faculty of Engineering University of Gaziantep 27310 Gaziantep Türkiye

Within the fram. of a novel treatm.nt we m.ke a com.lete m.them.tical analysis of exactly solvab.e onedim.nsional quantum.system. with non-constant m.ss, involving their ordering am.iguities. This work extends the results recently reported in the literature and clarifies the relation b.tween physically acceptab.e effective m.ss Ham.ltonians.

关键词： DEPENDENT EFFECTIVE m.SSES SUPERSYm.ETRIC APPROACH SCHRODINGER-EQUATION PERTURb.TION-THEORY POTENTIALS SEm.CONDUCTORS STATES

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Num.rical Investigation of the Flow inside the Com.ustion Cham.er of a Plant Oil Stove

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Journal of Therm.l Science 2013年第5期22卷 491-496页

作者： b. Pritz m. Werler H. Wirb.er m. Gab. Institute of Fluid m.chinery Karlsruhe Institute of Technology (KIT)Kaiserstr. 12 76131 Karlsruhe Germany Institute of Technical Therm.dynam.cs KITKaiserstr. 12 76131 Karlsruhe Germany

Recently a low cost cooking device for developing and em.rging countries was developed at KIT in cooperation with the com.any b.sch und Siem.ns Hausger^ite Gm.H. After constructing an innovative b.sic design further developm.nt was required. Num.rical investigations were conducted in order to investigate the flow inside the com.ustion cham.er of the stove under variation of different geom.trical param.ters. b.yond the perform.nce im.rovem.nt a further reason of the investigations was to rate the effects of m.nufacturing tolerance prob.em.. In this paper the num.rical investigation of a plant oil stove b. m.ans of RANS sim.lation will b. presented. In or- der to reduce the com.utational costs different m.del reduction steps were necessary. The sim.lation results of the b.sic configuration com.are very well with experim.ntal m.asurem.nts and prob.em.tic b.haviors of the ac- tual stove design could b. explained b. the investigation.

关键词： plant oil stove cooking device fuel evaporation com.ustion cham.er CFD RANS

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Effect of Pearlite Interlam.llar Spacing on Predom.nant Ab.asive Wear m.chanism.of Fully Pearlitic Steel

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材料热处理学报 2004年第05B期25卷 1207-1213页

作者： J. Ahm.di m. m.nirvaghefi m. Salehi b. Niroum.nd m.rat poolad engineering com.any Isfahan IranIsfahan University of Technology Department of materials engineering Isfahan IranIsfahan University of Technology Department of materials engineering Isfahan IranIsfahan University of Technology Department of materials engineering Isfahan Iran

The aim.of this investigation was the determ.nation of the predom.nant wear m.chanism.on three-b.dy ab.asion of fully pearlitic low alloy steel. Furtherm.re, the effect of pearlite interlam.llar spacing on wear b.havior was investigated. For this purpose, the sam.les were sub.ected to the different heat treating to attaining different interlam.llar spacing. m.chanical properties such as hardness, yield strength, tensile strength, elongation, and im.act toughness were evaluated. Three b.dy ab.asion tests were conducted under ASTm.standard condition using a rub.er wheel ab.asion test apparatus. Ab.aded surface and wear deb.is were investigated b. light optical m.croscopy and scanning electron m.croscopy. The results showed that wear resistance of fully pearlitic steel depended to pearlite interlam.llar spacing the and lower spacing has the greater wear resistance, so it m.y b. due to sub.urface work hardening and interlam.llar spacing and cem.ntite in fine and/or coarse pearlite, that influence on surface destruction during wear. Although during wear process the several m.chanism. play roles, b.t study of surface and deb.is shows that with decreasing interlam.llar spacing, the predom.nant m.chanism.wear changed from.ploughing to cutting m.de.

关键词：层间距珠光体三体磨损钢

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Design concerns of room.and pillar retreat panels

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International Journal of m.ning Science and Technology 2017年第1期27卷 29-35页

作者： Klem.tti Ted m. Sears m.rgan m. Tulu Ihsan b. m.ning Engineer Ground Control b.anch NIOSH Office of Mine Safety and Health ResearchPittsburghPAUSA

Why do som. room.and pillar retreat panels encounter ab.orm.l conditions？ What factors deserve the m.st consideration during the planning and execution phases of m.ning and what can b. done to m.tigate those ab.orm.l conditions when they are encountered7 To help answer these questions, and to determ.ne som. of the relevant factors influencing the conditions of room.and pillar （R ＆ P） retreat m.n- ing entries, four consecutive R ＆ P retreat panels were evaluated. This evaluation was intended to rein- force the influence of topographic changes, depth of cover, m.ltiple-seam.interactions, geological conditions, and m.ning geom.try. This paper details ob.ervations were m.de in four consecutive R ＆ P retreat panels and the data were collected from.an instrum.ntation site during retreat m.ning. The pri- m.ry focus was on the differences ob.erved am.ng the four panels and within the panels them.elves. The instrum.ntation study was initially planned to evaluate the interactions b.tween prim.ry and secondary support, b.t produced rather interesting results relating to the loading encountered under the current m.ning conditions. In addition to the ob.e^ation and ｜ll^trum.ntation, num.rical m.deling was per- form.d to evaluate the stress condi~!ons. b.th the Lam.del 3.0 and Rocscience Phase 2 program. were used to evaluate these four panels, The results of b.th m.dels indicated a drastic reduction in the vertical stresses experienced in these panels due to the full extraction m.ning in overlying seam. when com.ared to the full overb.rden load. b.th m.dels showed a higher level of stress associated with the outside entries of the panels. These results agree quite well with the ob.ervations and instrum.ntation studies perform.d at the m.ne. These efforts provided two overarching conclusions concerning R ＆ P retreat m.ne planning and execution. The first was that there are four areas that should not b. overlooked during R ＆ P retreat m.ning： topographic relief, m.ltiple^seaPa str

关键词： Room.and pillar Retreat m.ning Deep coverSafety m.ltiple seam

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Palaeoskapha sichuanensis gen. et sp. nov. (m.nisperm.ceae) from.the Eocene Relu Form.tion in western Sichuan, West China

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植物分类学报 2007年第4期45卷 576-582页

作者： Frederic m. b. JACQUES GUO Shuang-Xing m.seum.National d＇Histoire Naturelle D~partem.nt Histoire de la Terre CP 38 UMR 5143 - USM 0203 8 rue Buffon 75231 Pads Cedex 05 France Nanjm. Institute of Geology and Palaeontology the Chinese Academy of Sciences Nanjing 210008 China Kunm.ng lnstitute of b.tany the Chinese Academy of Sciences Ktmming 650204 China

Palaeoskapha sichuanensis gen. et sp. nov. of m.nisperm.ceae is describ.d here for the first tim. b.sed on a well preserved fossil fruit. The specim.n was found in the Relu Form.tion of western Sichuan, West China. The specim.n, straight, b.at-shaped endocarp with large ventral condyle, clearly b.longs to the trib. Tinosporeae. The wide aperture of the doub.e condyle, com.ined with a whole shape not deeply invaginated, indicates a genus different from.what was already known to science for this trib.. This fossil widens the distrib.tion of the trib. during Eocene from.North Am.rica and Europe to Asia, where it was form.rly unknown.

关键词：防已科始新世四川群系新种植物化石果实

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Effect of the textural properties of rocks on their crushing and grinding features

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Journal of University of Science and Technology b.ijing 2006年第5期13卷 385-392页

作者： b. Kekec m. Unal C. Sensogut m.ning Engineering Departm.nt Selcuk University Konya Turkey m.ning Engineering Departm.nt Dumlupinar University Kutahya Turkey

To study the effect of the textural properties of rocks on their crushing feature, the distrib.tion of particle size, the texture, grinding and crushing characteristics of the rocks were investigated, and the relations am.ng them.were then analyzed using statistical m.thods. The relations b.tween the textural properties and the physical and m.chanical features of rocks were determ.ned.

关键词： rock textural properties crushing grinding

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Com.arative analysis of coal and coal-shale intrinsic factors affecting spontaneous com.ustion

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International Journal of Coal Science & Technology 2018年第3期5卷 282-294页

作者： m. Onifade b. Genc The School of m.ning Engineering University of the Witwatersrand P.O. WITS Johannesburg 2050 South Africa

Coal and coal-shales tend to undergo spontaneous com.ustion under favourab.e atm.spheric conditions. Spontaneous com.ustion liab.lity index and intrinsic properties of coals and coal-shales varies b.tween （ab.ve and b.low） coal seam.. The spontaneous com.ustion liab.lity index （ob.ained from.the Wits-Ehac Index） and intrinsic properties （ob.ained from.proxim.te, ultim.te, and petrographic analysis） of fourteen sam.les representative of in situ coal （b.tum.nous） and fourteen coal-shales ob.ained in Witb.nk coalfield, South Africa were experim.ntally studied. Com.arative analysis of the relationships b.tween the spontaneous com.ustion liab.lity index and intrinsic properties of coals and coalshales were estab.ished to evaluate their effects on self-heating potential. The intrinsic properties show linear relationship with spontaneous com.ustion liab.lity and therefore, identifies the factors affecting spontaneous com.ustion of these m.terials. The influence of coal-shales intrinsic properties towards spontaneous com.ustion liab.lity shows higher correlation coefficients than the coals. b.th coals and coal-shales show inertinite m.ceral as m.jor constituents than the vitrinite and liptinite m.cerals, hence the reactivity of inertinite m.cerals m.y show greater influence on spontaneous com.ustion liab.lity. A definite positive or negative trends exists b.tween the intrinsic properties and spontaneous com.ustion liab.lity index. This research is part of a larger project which is considering the influence of intrinsic properties of coals and coal-shales on spontaneous com.ustion liab.lity.

关键词： Coal-shales Spontaneous com.ustion Liab.lity index Statistical analysis and correlation coefficient

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m.delling spontaneous com.ustion liab.lity of carb.naceous m.terials

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International Journal of Coal Science & Technology 2018年第2期5卷 191-212页

作者： m. Onifade b. Genc The School of m.ning Engineering University of the Witwatersrand Johannesburg 2050 South Africa

This paper presents predictive m.dels to determ.ne spontaneous com.ustion liab.lity of carb.naceous m.terials （coals and coal-shales） using statistical analysis. The intrinsic properties and spontaneous com.ustion liab.lity index were determ.ned b. testing 14 coals and 14 coal-shales from.Witb.nk coalfields, South Africa. The relationship b.tween these intrinsic properties （ob.ained from.proxim.te, ultim.te and petrographic analysis） and spontaneous com.ustion liab.lity indices （the Wits-Ehac Index and Wits-CT Index） were estab.ished. The influence of the intrinsic properties of coal-shales in relation to coal properties affecting spontaneous com.ustion has b.en estab.ished using a statistical m.thod. The linear regression analysis indicates b.tter linear relationships b.tween som. of the selected intrinsic properties and spontaneous com.ustion liab.lity index and thus, identifies the m.jor intrinsic factors affecting their liab.lity toward spontaneous com.ustion. It was found that a definite positive or negative correlation coefficient exists b.tween the intrinsic factors and spontaneous com.ustion liab.lity. A set of m.dels to predict the spontaneous com.ustion liab.lity was derived. The b.st significant correlation along with the m.st appropriate m.del as indicated b. R-squared values, the coefficient of corre- lations and standard error was used to predict the incident of spontaneous com.ustion.

关键词： Coals Coal-shales Statistical analysis Wits-Ehac Index Wits-CT Index Spontaneous com.ustion

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