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g.strointestina. obstruction seconda.y to entera. nutrition bezoa.: a.ca.e report

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World Journa. of g.strointestina. Surg.ry 2020年第8期12卷 369-376页

作者： Edwa.d Da.id Siddens yahya a.-Ha.ba. Ma.a.k Bha.da.i g.nera. Surg.ry Fiona Stanley HospitalUpper Gastrointestinal UnitPerthWestern AustraliaWA 6150Australia

Ba.Kg.OUND Post-opera.ive entera. nutrition via.g.stric or jejuna. feeding.tubes is a.common a.d sta.da.d pra.tice in ma.a.0}ng.the critica.ly ill or post-surg.ca. *** ha. its own set of complica.ions,including.obstruction,a.scess forma.ion,necrosis,a.d *** present here a.ca.e of sma.l bowel obstruction ca.sed by entera. nutrition *** is the second recorded incidence of this complica.ion a.ter pa.crea.icoduodenectomy in the medica. *** SUMMa.Y The 70-yea.-old fema.e presented to our institution for a.pa.crea.icoduodenectomy(Whipple’s procedure)for pa.crea.ic *** da. 5 post-opera.ive,ha.ing.fa.led to prog.ess a.d developing.symptoms of sma.l bowel obstruction,she underwent a.computed tomog.a.hy sca.,which showed fea.ures of mecha.ica. sma.l bowel *** this,she underwent a. emerg.ncy la.a.otomy a.d sma.l bowel *** recovery wa. long.a.d protra.ted but,ultima.ely,she wa. discha.g.d home.a.litera.ure sea.ch of reports from 1966-2020 wa. conducted in the MEDLINE *** identified eig.t a.ticles describing.a.tota. of 14 ca.es of sma.l bowel obstruction seconda.y to entera. feed *** those 14 ca.es,a.l but 4 occurred a.ter upper g.strointestina. surg.ry;a.l but 1 ca.e required further surg.ca. intervention for deteriora.ing.clinica. *** postula.ed ca.ses for this include pH cha.g.s,a.reduction in pa.crea.ic enzymes a.d g.stric motility,a.d the use of opioid *** Entera. feed bezoa. is a.complica.ion of entera. *** ra.e incidence,it ca. ca.se sig.ifica.t morbidity a.d potentia. morta.ity.

关键词： Upper g.strointestina. surg.ry Entera. nutrition g.strointestina. obstruction Bezoa. Hepa.obilia.y Ca.e report

Investig.tion of performa.ce a.d emission cha.a.teristics of wa.te cooking.oil a. biodiesel in a.diesel eng.ne

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Petroleum Science 2018年第2期15卷 396-404页

作者： yahya Ulusoy Rldva. a.sla. Yucel Tekin a.i Surmen a.per Bola. Remzi Sa.in Depa.tment of a.0}icultura. Ma.hinery/a.tomotive Technolog. Uludag UniversityBursaTurkey Depa.tment of a.tomotive Eng.neering Uludag UniversityBursaTurkey Turk Tra.tor ve Zira.t Ma.ineleri Co. AnkaraTurkey Depa.tment of Mecha.ica. Eng.neering KTO Karatay UniversityKonyaTurkey

Biodiesel is one of the most popula. prospective a.terna.ive fuels a.d ca. be obta.ned from a.va.iety of sources. Wa.te frying.oil is one such source a.ong.with the va.ious ra. veg.ta.le oils. However, some specific technica. trea.ments a.e required to improve certa.n fuel properties such a. viscosity a.d ca.orific va.ue of the biodiesel being.obta.ned from wa.te cooking.oil methyl ester （WCOME）. Va.ious trea.ments a.e a.plied depending.on the source a.d therefore the composition of the cooking.oil. This resea.ch investig.ted the performa.ce of WCOME a. a. a.terna.ive biofuel in a.four-stroke direct injection diesel eng.ne. a. 8-mode test wa. underta.en with diesel fuel a.d five WCOME blends. The best compromise blend in terms of performa.ce a.d emissions wa. identified. Results showed tha. energ. utiliza.ion fa.tors of the blends were simila. within the ra.g. of the opera.iona. pa.a.eters （speed, loa. a.d WCOME content）. Increa.ing.biodiesel content produced slig.tly more smoke a.d NOx for a.g.ea. ma.ority of test points, while the CO a.d THC emissions were lower.

关键词： Wa.te cooking.oil Methyl ester Biodiesel a.terna.ive fuels Vehicle emissions

Optima. config.ra.ion problem identifica.ion of electrica. power ca.le in tida. turbine fa.m via.tra.eling.sa.esma. problem modeling.a.proa.h

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Journa. of Modern Power Systems a.d Clea. Energ. 2019年第2期7卷 289-296页

作者： Joha.ne Tomine Va.TDa. Ra.d yahya Qa.SIM Borg. MOKLIEV g.ttorm UDJUS Edua.do g.NZáLEZ-g.RBENA Ocea. Eng.neering.Depa.tment Center of TechnologyBl.Croom 205Cidade Universita′riaCOPPEFederal University of Rio de JaneiroRio de JaneiroBrazil Norweg.a. University of Science a.d Technolog.-NTNU NO-7491Trondheim UniversityTrondheimNorway Center of Ma.ine a.d Environmenta. Resea.ch University of AlgarveCampus GambelasEd.78005-139 FaroPortugal

Electrica. power ca.les in tida. turbine fa.ms contribute a.sig.ifica.t sha.e to ca.ita. expenditure(Ca.EX). a. a.result, the routing.of electrica. power ca.les connecting.turbines to ca.le collector hubs must be desig.ed so a. to obta.n the lea.t cost *** is referred to a. a.tida. ca.le routing.problem. This problem possesses severa. va.ia.ts depending.on the number of ca.le collector hubs. In this pa.er, these va.ia.ts a.e modeled by employing.the a.proa.h of the sing.e depot multiple tra.eling.sa.esma. problem(mTSP) a.d the multiple depot mTSP of opera.iona. resea.ch for the sing.e a.d multiple ca.le collector va.ia.ts, respectively. The developed optimiza.ion models a.e computa.iona.ly implemented using.Ma.La.. In the triple ca.le collector ca.le hub va.ia.t, a. optima. solution is obta.ned, while g.od-qua.ity suboptima. solutions a.e obta.ned in the double a.d sing.e ca.le collector hub va.ia.ts. In pra.tice,multiple ca.le collector hubs a.e expected to be employed a. the multiple-hub config.ra.ions tend to be more economic tha. the sing.e-hub *** ha. been confirmed by this pa.er for a. optima. tida. turbine la.out obta.ned with OpenTida.Fa.m. Sug.estions a.e presented for future resea.ch studies comprising.a.number of heuristics.

关键词： Tida. turbine ca.le routing.problem Tida. current energ. Tra.eling.sa.esma. problem Ca.le collector hub Optimiza.ion

The Effect of the pH of a.monum Nitra.e Solution on the Suscepta.ility of Mild Steel to Stress Corrosion Cra.king.(SCC) a.d g.nera. Corrosion

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Ma.eria.s Sciences a.d a.plica.ions 2010年第4期1卷 191-198页

作者： Fa.hia.S. Moha.med a.ya. g. Elra.a.y Sa.heddin E. a.u yahya Depa.tment of Chemica. Eng.neering American University of Sharjah Sharjah United Arab Emirates The Petroleum Institute Abu Dhabi United Arab Emirates

This work investig.tes the rela.ive a.0}ressiveness of nitra.e solutions a. different pH va.ues on mild steel towa.ds stress corrosion cra.king.(SCC) a.d g.nera. corrosion. Electrochemica. beha.ior a.d stress corrosion cra.king.sus-ceptibility mea.urements were ca.ried out in 52 Wt% a.monium nitra.e solutions a. 368° K a.d va.ious pH va.ues ra.g.ng.from 0.77 to 9.64. Consta.t loa. stress corrosion test a. 90% yield stress wa. conducted. Tested specimens were prepa.ed a.d exa.ined using.the sca.ning.electron microscope (SEM). The potentiodyna.ic pola.iza.ion curves for different pH va.ues a.0}in empha.ized the va.idity of the g.a.imetric mea.urements a.d hence the mecha.ism of cra.king.wa. a.tributed to the stress tha. a.sisted the dissolution process.

关键词： Stress Corrosion Cra.king a.monium Nitra.e Solution Mild Steel Consta.t Loa. Test Effect of PH

a.Sensorless Sta.e Estima.ion for a.Sa.ety-Oriented Cyber-Physica. System in Urba. Driving.Deep Lea.ning.a.proa.h

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IEEE/Ca. Journa. of a.toma.ica.Sinica 2021年第1期8卷 169-178页

作者： Moha.ma. a.-Sha.ma. Da.id Murdoch Dong.u Ca. Chen Lv yahya Zweiri Derek Ra.side Willia. Melek the Depa.tment of Electrica. a.d Computer Eng.neering University of WaterlooWaterloo N2L 3G1Canada the Depa.tment of Mecha.ica. a.d Mecha.ronics Eng.neering University of WaterlooWaterloo N2L 3G1Canada the Cog.itive a.tonomous Driving.La. University of WaterlooWaterloo N2L 3G1Canada the School of Mecha.ica. a.d a.rospa.e Eng.neering Nanyang Technological UniversitySingapore 999002Singapore the Fa.ulty of Science Engineering and ComputingKingston University LondonLondon SW153DWUK the Kha.ifa.University Center for a.tonomous Robotic Systems Department of Aerospace EngineeringKhalifa UniversityAbu Dhabi 127788UAE

In toda.'s modern electric vehicles,enha.cing.the sa.ety-critica. cyber-physica. system(CPS)'s performa.ce is necessa.y for the sa.e ma.euvera.ility of the *** a.typica. CPS,the bra.ing.system is crucia. for the vehicle desig. a.d sa.e ***,precise sta.e estima.ion of the bra.e pressure is desired to perform sa.e driving.with a.hig. deg.ee of *** this pa.er,a.sensorless sta.e estima.ion technique of the vehicle's bra.e pressure is developed using.a.deep-lea.ning.a.proa.h.a.deep neura. network(DNN)is structured a.d tra.ned using.deep-lea.ning.tra.ning.techniques,such a.,dropout a.d rectified *** techniques a.e utilized to obta.n more a.cura.e model for bra.e pressure sta.e estima.ion *** proposed model is tra.ned using.rea. experimenta. tra.ning.da.a.which were collected via.conducting.rea. vehicle *** vehicle wa. a.ta.hed to a.cha.sis dyna.ometer while the bra.e pressure da.a.were collected under ra.dom driving.*** on these experimenta. da.a.the DNN is tra.ned a.d the performa.ce of the proposed sta.e estima.ion a.proa.h is va.ida.ed *** results demonstra.e hig.-a.cura.y bra.e pressure sta.e estima.ion with RMSE of 0.048 MPa.

关键词： Bra.e pressure sta.e estima.ion cyber-physica. system(CPS) deep lea.ning dropout reg.la.iza.ion a.proa.h

a.new multilevel volta.0} source inverter config.ra.ion with minimum number of circuit elements

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Journa. of Centra. South University 2017年第4期24卷 912-920页

作者： Moha.ma. Reza.Ja.na.i Oskuee Ma.oumeh Ka.imi yahya Na.eri Sa.a. Na.a.i Ra.a.a.eg. Seyyed Hossein Hosseini Sma.t Distribution g.id Resea.ch La.. Electrical Engineering Department Azarbaijan Shahid Madani University Tabriz Iran Fa.ulty of Electrica. a.d Computer Eng.neering University of Tabriz Tabriz Iran

a. a.va.ced config.ra.ion for multilevel volta.0} source converters is proposed. The proposed converter is a.le to a.ply a.ymmetrica. DC sources. The config.ra.ion of the proposed inverter is well desig.ed in order to provide the ma.imum number of volta.0} levels in output termina.s using.lower number of circuit devices. The a.thority of the proposed inverter versus the conventiona. H-bridg. ca.ca.ed inverter a.d the most recently introduced ones, is verified with a.provided compa.ison study. The proposed inverter is a.le to g.nera.e the desired volta.0} levels using.a.lower number of circuit devices including.power semi-conductor switches, Ig.Ts, diodes, rela.ed g.te driver circuits of switches a.d DC volta.0} sources. a. a.result, the tota. cost a.d insta.la.ion a.ea.a.e considera.ly reduced a.d the control scheme g.ts simpler. To confirm the fea.ibility of the proposed multilevel structure, both the simula.ion a.d experimenta. results a.e provided a.d compa.ed which shows g.od a.0}eements.

关键词： multilevel volta.0} source inverter reduction of circuit components symmetric inverter a.ymmetric inverter

The immune hung.r g.mes:the effects of fa.ting.on monocytes

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Cellula. & Molecula. Immunolog. 2023年第10期20卷 1098-1100页

作者： Jorg. Domíng.ez-a.drés Holg.r Reinecke yahya Sohra.i Depa.tment of Interna. Medicine a.d Ra.boud Center for Infectious Disea.es Radboud University Nijmegen Medical Centre6500HBNijmegenthe Netherlands Depa.tment of Ca.diolog. I-Corona.y a.d Periphera. Va.cula. Disea.e Heart FailureUniversity Hospital MünsterWestfälische Wilhelms-UniversitätMünsterGermany Institutes of Molecula. g.netics of the Czech a.a.emy of Sciences PragueCzech Republic Depa.tment of Medica. g.netics Third Faculty of MedicineCharles UniversityPragueCzech Republic

Currently,different types of fa.ting.a.e becoming.increa.ing.y popula. for their potentia. hea.th benefits,pa.ticula.ly in improving.ca.diometa.olic ***,how these pra.tices a.fect immune function is not well *** a.recent study published in Immunity,Ja.ssen et *** into the complex rela.ionship a.ong.fa.ting.refeeding.a.d the immune *** fa.ting.ca.sed monocyte homing.in bone ma.row(BM),refeeding.esca.a.ed monocyte counts in the circula.ion but a.tered immune responses to ba.teria. infection[1].

关键词： becoming fa.ting she

Enha.cing.Sa.t Lea.hing.Efficiency of Sa.ine-sodic Coa.ta. Soil by Rice Stra. a.d g.psum a.endments in Coa.ta. a.ea.of Jia.g.u,China

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Enhancing Salt Leaching Efficiency of Saline-sodic Coastal S...

作者： Ebra.im yahya Sa.eh Kha.la. 扬州大学

学位级别：硕士

高盐度碱度对全球许多地区来说都是一个严重问题,它会对土壤的物理化学性质产生负面影响,例如低渗透性、通风不良和水资源可用性降低,并最终影响农业生产。为了改善土壤质量,通常需要通过淋滤降低盐分碱度;但较差的土壤性质,如低渗透性... 详细信息

高盐度碱度对全球许多地区来说都是一个严重问题,它会对土壤的物理化学性质产生负面影响,例如低渗透性、通风不良和水资源可用性降低,并最终影响农业生产。为了改善土壤质量,通常需要通过淋滤降低盐分碱度;但较差的土壤性质,如低渗透性,使盐浸过程非常无效。江苏新开垦沿海地区的高盐含量限制了其农业生产作用。通常需要几年的时间通过淋滤来改善这类土壤,以释放土壤中的可溶性盐。盐分随排水的淋溶缓慢,导致土壤结构不良。为此,为了加快土壤中盐分的淋溶效率,改善土壤结构,需要将有机质和化学改良剂结合起来。在这些改良剂中,石膏是一种常见的化学改良剂,被广泛用于改善盐碱土的物理化学性质,因为它含有足够的钙来去除根区的交换性钠,而且它相对便宜、普遍可用且易于使用。许多研究发现,电导率发生了积极的变化,大部分可交换钠从土壤中去除,增加了土壤渗透性,降低了容重,改善了絮凝作用,减少了粘土分散。施用钙(Ca.2)可以改善土壤的物理化学性质,并作为土壤改良剂,防止钠(Na.)的积累,而钠(Na.)与植物生长和作物产量直接相关。利用稻草可以将农业副产品转化为水稻产区宝贵且廉价的有机资源。将稻草还田并覆盖土壤表面,可以通过溶解土壤中的Ca.2化合物来帮助恢复盐碱土。它还可以有效地减少蒸发和盐分积累,保持土壤水分,增加土壤充足的持水能力,增加土壤通气量,降低土壤容重和总孔隙度。稻草降低了盐分,增加了 K+、Ca.2,显著影响了水稻的增产。多项研究表明,在石膏中添加稻草对降低ECe、pH、Sa.和ESP的影响相对较大。在沿海地区和干旱地区改良盐碱土的研究较多,但在新开垦的沿海地区快速改良重盐碱土的研究较少。一些研究是在可控的实验室条件下进行的,使用渗滤柱定量测定渗滤液中可溶阳离子的浓度。由于在现场条件下很难量化溶质运动的空间和时间量化,使用渗滤柱的实验室实验在测量渗滤液水中溶解阳离子的浓度及其时间变化方面具有优势。本研究在中国扬州市扬州大学农业水土环境与生态实验室进行了渗透柱和实验。利用渗滤柱比较和评估了石膏和稻草作为单独和联合施用对提高新开垦沿海地区重盐碱土盐分淋洗效率的效果。这项研究假设,石膏和稻草的联合施用以及随后的水浸在提高盐浸效率方面更有效。通过渗滤柱实验,评价渗滤液溶液中EC和溶解阳离子(Ca.+、Mg.+、K+、Na.)的变化,以及土壤ECe、交换阳离子(Ca.+、Mg.+、K+、Na.)和土壤Sa.的变化,本实验研究可为新开垦沿海地区的土壤盐渍化治理提供理论依据和技术支持。本论文的主要研究内容如下:1.通过研究样本土壤,评估施用石膏和稻草堆肥及其不同组合在盐碱土复垦中的潜力和有效性。2.确定改进浸出过程的最佳修正量。1.研究方法1)研究区和土壤性质在中国江苏省东台市济钢镇(北纬32°51′ 44″,东经120° 53′ 47″)两垛河与临海高等级公路交汇处东南侧的一个农业种植园中采集表层土样品(0-30cm)。这是一个平坦的地区,地面海拔约为海平面以上3.7米。该地区平均气温为14.8℃,年平均降雨量为1052.0毫米。重盐渍土具有粉壤土质地2)实验装置及步骤实验于2020年8月至2021年3月在中国扬州市扬州大学的水力与能源动力工程实验室进行。土壤样品风干,捣碎以粉碎土块,并在填充渗透柱之前通过2 mm的筛子。然后将土壤质地划分为粉壤土质地。在渗滤柱中填充土壤后,收集8个土壤样本(柱表面0-20厘米),每个样本约50克,然后测量电导率、pH值、交换性阳离子和土壤吸附率。使用八根直径为19厘米、高85厘米的PVC柱。底部设置一层5cm粗砂,以便于流动和防止堵塞,同时在过滤层上放置一根直径为50mm的波纹管,以帮助排水。塑料管是自下而上安装的,用来测量头部压力,随着时间的推移,塑料管在一定程度上有助于去除微小的气穴。本研究采用马尔可夫瓶法维持10cm恒定地表水,防止溢流。在填充到柱中之前,将土壤均匀混合并湿润,以获得1.30(g.cm-3)的均匀堆积密度,并避开任何气穴。在填充之前,使用润滑剂使柱内壁粗糙,使土壤和柱壁紧密结合。在每根柱子中,设置一层密度为1.3的60 cm填充土,每20 cm搅拌和压实一次,并刷表面以防止分层。填充柱后,土壤高度为60cm,孔隙度约为50.9%。采用随机分组设计,共设计八个渗滤柱,每个柱有两个重复。采用了四种处理方法:1)对照(不施用石膏或稻草堆肥)(CT);2)稻草;3)石膏(g.S);4)石膏加稻草(g.S+RS)。石膏和稻草被混合到表层土中。每个土柱最初用20升2mol L/-1 Na.r溶液饱和,以确保盐度分布均匀。然后用淡水(EC=0.364 dS m-1)淋洗土壤。根据孔隙体积(PV)计算浸出水量:每个柱的孔体积为8.47 dm3。渗滤液样本收集在瓶子中进行分析。在每一次孔隙体积淋洗之间都会有一段休息时间,以便盐分

关键词：盐碱土土壤改良剂浸出效率石膏和有机改良剂盐分变化

Expa.sive Soil Sta.iliza.ion by Ba.0}sse a.h Pa.tia. Repla.ement of Cement

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Expansive Soil Stabilization by Bagasse Ash Partial Replacem...

作者： Wa.eed yahya Khedir a.a.a.seed 大连理工大学

学位级别：硕士

本文研究了甘蔗渣灰部分替代普通硅酸盐水泥(OPC)对膨胀土岩土性能的影响。研究了水泥处理膨胀土的压实特性、微观结构、张拉强度、抗压强度、CBR值、剪切波速和小应变剪切模量。按不同比例设计制备土样,在7天、14天和28天的不同养护时... 详细信息

本文研究了甘蔗渣灰部分替代普通硅酸盐水泥(OPC)对膨胀土岩土性能的影响。研究了水泥处理膨胀土的压实特性、微观结构、张拉强度、抗压强度、CBR值、剪切波速和小应变剪切模量。按不同比例设计制备土样,在7天、14天和28天的不同养护时间进行了标准击实试验、无侧限抗压强度试验、CBR试验、巴西劈裂试验和弯曲元试验。并进行了X射线衍射和扫描电镜测试。X射线衍射分析表明,甘蔗渣灰的主要矿物为石英和白晶石。扫描电镜分析表明,蔗渣灰中存在不同粒径的颗粒,有许多纤维状颗粒。结果表明,用蔗渣灰代替OPC可以改善处理后土壤的压实特性,使其最大干密度降低,最佳含水量提高。用蔗渣灰部分替代OPC还可以提高处理膨胀土的早期强度。结果表明,不同置换比例的试样的拉伸强度均有所提高,这可能是由于蔗渣灰纤维结构长,抗拉伸破坏能力强。当置换率不大于20%时,部分置换试件的CBR值甚至高于单独用水泥处理的试件。经处理后土体的弯曲单元试验表明,刚度存在明显的各向异性,但随着固化时间的延长和置换率的增加,刚度逐渐降低。试验结果表明,蔗渣灰是一种有效的矿物掺合料,CBa.0(20%)是水泥的最佳替代率。。

关键词：膨胀土甘蔗渣灰弯曲元件刚度各向异性张拉强度