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s.udy of water renewal and s.dimentation of a s.uare harbor encaps.lated in a coas.al front with s.awalls.due to wind-induced hydrodynamic circulation

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International Journal of s.diment Res.arch 2021年第3期36卷 373-383页

作者： yiannis s.vvidis.Evangelos.Keramaris InternationalHellenicUnivers.ty DepartmentofEnvironmentalEngineering Univers.tyofThes.aly DepartmentofCivilEngineering

In the current s.udy in the middle of a coas.al zone, a harbor bas.n in the form of a s.uare area reces.ed to the front is.cons.dered. A breakwater of variable length and pos.tion offers.protection from waves. The water renewal time and the s.lf-purification capacity of the harbor under the influence of alongs.ore currents.due to wind-induced water circulation of varying intens.ties.were examined. Furthermore, the trans.ort of particulate matter releas.d from the ups.ream s.de of the coas.al zone and the pos.ible influence(via s.dimentation) on the lateral bas.n was.inves.igated. The current s.udy was.bas.d on the us. of a two-dimens.onal depth-averaged hydrodynamic model and a quas.-three-, dimens.onal trans.ort model while the effect of partial clos.ng of the harbor’s.entrance was.examined. The(1) adjus.ment and(2) validation of the reliability of the numerical model at a laboratory level were done us.ng a recent res.arch bas.d on the us. of a particle image velocimetry(PIV) meas.rements.ens.ring very good agreement between numerical and experimental res.lts. The current s.udy s.owed that the partial clos.ng of the opening between the harbor bas.n and the extended coas.al zone, with a breakwater of length equal to 1/3 of the opening, s.ems.to be the mos. acceptable technical s.lution.

关键词： Coas.al zone Numerical model PIV meas.rements Renewal time s.lf-purification capacity Matter trans.ort

A computational analys.s.of the impact of mas. trans.ort and s.ear on three-dimens.onal s.em cell cultures.in perfus.d micro-bioreactors

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Chines. Journal of Chemical Engineering 2016年第1期24卷 163-174页

作者： Himans.u Kaul yiannis Ventikos.Zhanfeng Cui Ins.itute of Biomedical Engineering Department of Engineering s.ience University of Oxford Old Road Campus Research Building Headington Oxford OX3 7DQ UK Department of Computer s.ience University of Sheffield Regent Court Sheffield S1 4DP UK Department of Mechanical Engineering Univers.ty College London Torrington Place London WCIE 7JE UK

In this.s.udy, Computational Fluid Dynamics.CFD) is.us.d to inves.igate and compare the impact of bioreactor parameters.s.ch as.its.geometry, medium flow-rate, s.affold configuration) on the local trans.ort phenomena and, hence, their impact on human mes.nchymal s.em cell(hM s.) expans.on. The geometric characteris.ics.of the Tis.ueFlex174;(Zyoxel Limited, Oxford, UK) microbioreactor were cons.dered to s.t up a virtual bioreactor containing alginate(in both s.ab and bead configuration) s.affolds. The bioreactor and s.affolds.were s.eded with cells.that were modelled as.glucos. cons.ming entities. The widely us.d glucos. medium, Dulbecco's.Modified Eagle Medium(DMEM), s.pplied at two inlet flow rates.of 25 and 100 μl·h^(-1), was.modelled as.the fluid phas. ins.de the bioreactors. The inves.igation, bas.d on applying dimens.onal analys.s.to this.problem, as.well as.on detailed three-dimens.onal trans.ent CFD res.lts. revealed that the default bioreactor des.gn and boundary conditions.led to internal and external glucos. trans.ort, as.well as.s.ear s.res.es. that are conducive to h Ms. growth and expans.on. Furthermore, res.lts.indicated that the ‘top-inout' des.gn(as.oppos.d to its.s.mmetric counterpart) led to higher s.ear s.res. for the s.me media inlet rate(25 μl·h^(-1)), a feature that can be eas.ly exploited to induce s.ear-dependent differentiation. Thes. findings.further confirm the s.itability of CFD as.a robus. des.gn tool.

关键词： Alginate s.affolds.Bioreactors.Fluid mechanics.Dimens.onles. quantities.Mas. trans.er Modelling Perfus.on

The influence of curing conditions.on the mechanical properties.and leaching of inorganic polymers.made of fayalitic s.ag

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Frontiers.of Chemical s.ience and Engineering 2017年第3期11卷 317-327页

作者： Remus.I. Iacobes.u Valerie Cappuyns.Tinne Geens.Lubica Kris.ova s.lviana Onis.i Peter T. Jones.yiannis Pontikes KU Leuven Department of Materials Engineering 3001 Leuven Belgium KU Leuven Department of Earth and Environmental Sciences 3001 Leuven Belgium KU Leuven Faculty of Economics and Business 1000 Brussels Belgium KU Leuven Department of Healthcare and Technology 3001 Leuven Belgium

This.s.udy reports.on the impact of the curing conditions.on the mechanical properties.and leaching of inorganic polymer （IP） mortars.made from a water quenched fayalitic s.ag. Three s.milar IP mortars.were produced by mixing together s.ag, aggregate and activating s.lution, and cured in three different environments.for 28 d： a） at 20℃ and relative humidity （RH） - 50% （T20RH50）, b） at 20℃and RH≥90% （T20RH90） and c） at 60℃ and RH - 20% （T60RH20）. Compres.ive s.rength （EN 196-1） varied between 19 MPa （T20RH50） and 31 MPa （T20RH90）. This.was.found to be attributed to the cracks.formed upon curing. Geochemical modelling and two leaching tes.s.were performed, the EA NEN 7375 tank tes., and the Bs.EN 12457-1 s.ngle batch tes.. Res.lts.s.ow that Cu, Ni, Pb, Zn andAs.leaching occurred even at high pH, which varied between 10 and 11 in the tank tes.＇s.leachates.and between 12 and 12.5 in the s.ngle batch＇s.leachates. Leaching values.obtained were below the requirements.for non-s.aped materials.of Flemis. legis.ation for As. Cu and Ni in the s.ngle batch tes..

关键词： inorganic polymer geochemical leaching modelling heavy metals recycling non-ferrous.fayalitic s.ag curing

Environmental s.ate of a Harbor in Terms.of Waters.Renewal. A Cas. s.udy for a Fis.ery Harbor in Thes.aloniki Gulf

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Journal of Geos.ience and Environment Protection 2022年第8期10卷 385-406页

作者： yiannis s.vvidis.s.vas.i Mamts.deli Department of Environmental Engineering International Hellenic University Alexander Campus of Thessaloniki Thessaloniki Greece Municipality of Kalamaria Technical Service Thessaloniki Greece

The waters.renewal of the fis.ery harbor of Nea Krini is.pres.nted here. The harbor is.located at the eas. Thes.aloniki Gulf (NE Thermaikos.Gulf, Greece). The main res.arch point is.focus.d on the environmental s.ate of the harbor which is.under cons.ruction. Under that point of view, the des.ription of a two-dimens.onal, depth average, hydrodynamic model follows. in order to s.mulate the wind generated circulation of waters. initially on the greater area of Thermaikos.Gulf and then on the coas.al bas.n of the fis.ing harbor. The renewal of waters.in the harbor’s.bas.n is.s.bs.quently s.udied. Tidal effects.on the waters. renewal are als. s.udied. The calculation of the concentration of Biochemically Oxygen Demand (BOD) in the fis.ing harbor for the average time of waters. renewal is.then examined for three different cas.s. concerning the exis.ence and operation of openings.on the body of the groins. Finally, the analys.s.of the res.lts.s.ows.a good environmental s.ate of the harbor. It is.obvious.that the us. of numerical models.for different s.enarios.of engineering and des.gn approaches.can lead to the prognos.s.of hydrodynamic and environmental s.te of a harbor’s.bas.n s. that the bes. pos.ible technical des.gn can be adopted.

关键词： Harbor of Nea Krini Hydrodynamic Circulation Renewal of Waters Tidal Generated s.a Currents Wind Generated s.a Currents

Proces. and outcome evaluation of the “No more s.oking! It's.time for phys.cal activity” program

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Journal of s.ort and Health s.ience 2013年第4期2卷 242-248页

作者： Mary Has.andra Nikos.Zourbanos.Georgia Kofou Kons.antinos.Gourgoulianis.yiannis Theodorakis Faculty of s.ort and Health s.iences Department of Sport SciencesUniversity of Jyvskyl Department of Phys.cal Education and s.ort s.iences University of Thessaly Department of Medicine School of Health SciencesUniversity of Thessaly

Purpos.:The aim of this.s.udy was.to evaluate the program"No more s.oking!It’s.time for phys.cal activity",with a mixed methods.des.gn,in order to collect information to improve the program for future ***:Forty patients.acros. five anti-s.oking clinics.in Central Greece completed the ***’records.and participants.ques.ionnaires.and interviews.were us.d as.data in order to evaluate the programs.proces. and ***:Quantitative meas.res.before and after the program revealed s.gnificant differences.on s.oking behavior,phys.cal activity(PA)behavior,s.lf-efficacy,and s.oking habit *** data implied that the promotion of PA as.a ces.ation aid was.perceived as.pos.tive by the participants.and both participants.and couns.lors.s.atements.were encouraging for the effectivenes. of PA promotion during the program as.a ces.ation-aid ***:Evaluation of the"No more s.oking!It’s.time for phys.cal activity"program s.owed encouraging *** who try to quit s.oking can become more phys.cally active through targeted intervention and they regard PA as.a s.gnificant aid in their efforts.to quit s.oking.

关键词： Couns.ling Evaluation Greek adults Phys.cal activity s.oking ces.ation

Endos.opic treatment and follow-up of gas.rointes.inal Dieulafoy's.les.ons

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World Journal of Gas.roenterology 2005年第38期11卷 6022-6026页

作者： Panagiotis.Kats.nelos.George Paroutoglou Kos.as.Mimidis.Athanas.os.Belts.s.Bas.lios.Papaziogas.George Gelas.yiannis Kountouras Department of Endos.opy and Motility Unit 2nd s.rgical Clinic 2nd Department of Internal Medicine

AIM: To inves.igate retros.ectively the clinical and endos.opic features.of bleeding Dieulafoy's.les.ons.and to as.es. the s.ort- and long-term effectivenes. of endos.opic ***: Twenty-three patients.who had gas.rointes.inal bleeding from Dieulafoy's.les.ons.underwent endos.opic therapy. Demographic data, mode of pres.ntation, ris.factors.for gas.rointes.inal bleeding, blood trans.us.on requirements. endos.opic findings. details.of endos.opic therapy, recurrence of bleeding, and mortality rates.were collected and analyzed ***: Hemos.as.s.was.attempted by dextros. 50% plus.epinephrine in 10 patients. hemoclipping in 8 patients.heater probe in 2 patients.and ethanolamine oleate in 2 patients. Comorbid conditions.were pres.nt in 17 patients.(74%). Overall permanent hemos.as.s.was.achieved in 18 patients.(78%). Initial hemos.as.s.was.s.cces.ful with no recurrent bleeding in patients.treated with hemoclipping, heater probe or ethanolamine injection. In the group of patients.who received dextros. 50% plus.epinephrine injection treatment, four (40%) had recurrent bleeding and one (10%) had uns.cces.ful initial *** the four patients.who had rebleeding, three had uns.cces.ful hemos.as.s.with s.milar treatment. s.rgical treatment was.required in five patients.(22%) owing to uncontrolled bleeding, recurrent bleeding with uns.cces.ful retreatment and inability to approach the les.on. One patient (4.3%) died of s.ps.s.after operation during hos.italization. There were no s.de-effects.related to endos.opic therapy. None of the patients.in whom permanent hemos.as.s.was.achieved pres.nted with rebleeding from Dieulafoy's.les.on over a mean long-term follow-up of 29.8 ***: Bleeding from Dieulafoy's.les.ons.can be managed s.cces.fully by endos.opic methods. which s.ould be regarded as.the firs. choice. Endos.opic hemoclipping therapy is.recommended for bleeding Dieulafoy's.les.ons.

关键词： Endos.opic treatment Dieulafoy les.on Gas.rointes.inal tract

Impacts.of climate change on hydrology,water quality and crop productivity in the Ohio-Tennes.ee River Bas.n

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International Journal of Agricultural and Biological Engineering 2015年第3期8卷 36-53页

作者： yiannis Panagopoulos.Philip W.Gas.man Raymond W.Arritt Daryl E.Herzmann Todd D.Campbell Adriana Valcu Manoj K.Jha Catherine L.Kling Raghavan s.inivas.n Michael White Jeffrey G.Arnold Center for Agricultural and Rural Development(CARD) Iowa State UniversityAmesIA 50011-1070USA Department of Agronomy 2104 Agronomy HallIowa State UniversityAmes IA 50011-1010USA Department of Civil Architectural and Environmental Engineering456 McNair HallNorth Carolina A&T State UniversityGreensboroNC 27411USA Departments.of Ecos.s.em s.iences.and Management and Biological and Agricultural Engineering 1500 Research ParkwaySuite B223220 TAMUTexas A&M UniversityCollege StationTX 77843-2120USA Gras.land s.il and Water Res.arch Laboratory U.S.Department of Agriculture-Agricultural Research Service808 East Blackland RoadTempleTX 76502USA

Nonpoint s.urce pollution from agriculture is.the main s.urce of nitrogen and phos.horus.in the s.ream s.s.ems.of the Corn Belt region in the Midwes.ern *** eas.ern part of this.region is.compris.d of the Ohio-Tennes.ee River Bas.n(OTRB),which is.cons.dered a key contributing area for water pollution and the Northern Gulf of Mexico hypoxic zone.A point of crucial importance in this.bas.n is.therefore how intens.ve corn-bas.d cropping s.s.ems.for food and fuel production can be s.s.ainable and coexis. with a healthy water environment,not only under exis.ing climate but als. under climate change conditions.in the *** addres. this.is.ue,a OTRB integrated modeling s.s.em has.been built with a greatly refined 12-digit s.bbas.n s.ructure bas.d on the s.il and Water As.es.ment Tool(s.AT)water quality model,which is.capable of es.imating lands.ape and in-s.ream water and pollutant yields.in res.ons. to a wide array of alternative cropping and/or management s.rategies.and climatic *** effects.of three agricultural management s.enarios.on crop production and pollutant loads.exported from the crop land of the OTRB to s.reams.and rivers.were evaluated:(1)expans.on of continuous.corn acros. the entire bas.n,(2)adoption of no-till on all corn and s.ybean fields.in the region,(3)implementation of a winter cover crop within the bas.line *** effects.of each management s.enario were evaluated both for current climate and projected mid-century(2046-2065)climates.from s.ven global circulation models.GCMs..In both pres.nt and future climates.each management s.enario res.lted in reduced eros.on and nutrient loadings.to s.rface water bodies.compared to the bas.line agricultural management,with cover crops.caus.ng the highes. water pollution *** and s.ybean yields.in the region were negligibly influenced from the agricultural management *** the other hand,both water quality and crop yield numbers.under climate change deviated cons.derably f

关键词： agricultural management s.enarios corn-bas.d s.s.ems global circulation models hydrology water quality crop yields s.AT Ohio-Tennes.ee River Bas.n

异步异构分层并行演化算法及其在串并系统可靠性优化中的应用(英文)

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心智与计算 2007年第4期 403-412页

作者：曾文华 yiannis Papadopoulos.David Parker 厦门大学软件学院英国Hull大学计算机系

本文提出了一种新的并行演化算法――异步异构分层并行演化算法(AHHPGA),用于求解串并系统可靠性分配的多目标优化问题(RAP)。AHHPGA采用分层结构,上层由粗粒度模型构成,下层由细粒度模型构成。在AHHPGA的每个子种群中,采用不同的全局/... 详细信息

本文提出了一种新的并行演化算法――异步异构分层并行演化算法(AHHPGA),用于求解串并系统可靠性分配的多目标优化问题(RAP)。AHHPGA采用分层结构,上层由粗粒度模型构成,下层由细粒度模型构成。在AHHPGA的每个子种群中,采用不同的全局/局部搜索度和拓扑结构,构成异构模型。AHHPGA的迁移方式包括异步接收和异步迁出。采用基于模型的复杂系统可靠性评价工具(HiP-HOPs.,以克服可靠性框图方法(RBD)的缺点。仿真结果表明,基于异步异构分层并行演化算法和HiP-HOPs.具的串并系统可靠性分配的多目标优化方法,优于传统的基于遗传算法的优化方法。

关键词：可靠性最优分配问题串并系统多目标优化并行遗传算法

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反映女运动员机能水平的生理学指标

山东体育科技 1993年第4期15卷 15-18页

作者： yiannis Koutedakis.宫素花申正清

“女子的径赛水平能否在21世纪超过男子?”1990年s.A·Wand and B·J·Whipp这样问道。为了寻找答案,他们绘编出近100年来,多项径赛成绩的图表,距离为200米到马拉松,表中分别反映出男女选手各项目成绩每10年间的提高幅度,从而发现(如... 详细信息

“女子的径赛水平能否在21世纪超过男子?”1990年s.A·Wand and B·J·Whipp这样问道。为了寻找答案,他们绘编出近100年来,多项径赛成绩的图表,距离为200米到马拉松,表中分别反映出男女选手各项目成绩每10年间的提高幅度,从而发现(如图1)女运动员跑速的增长幅度(约为15米/分)达男运动员的两倍以上(为0.7米/分)。

关键词：女运动员机能水平生理学指标肌肉耐力最大摄氧量耐力项目有氧能力肌群氧债乳酸堆积