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On the analytical solution of.transient f.iction in channel f.ows

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Ap.lied Mathematics and Mechanics(English Edition) 2024年第8期45卷 1447-1466页

作者： f.J.GARCíA-GARCíA p.f.RINAS-ALVARINO Dep.rtment of.Naval&Industrial Engineering Polytechnic School of EngineeringUniversity of A CorunaCampus Industrial de FerrolFerrol 15403A CorunaSpain Integraciones Técnicas de Seguridad S.A.Pol.Ind.Espiritu SantoC/Nobel15Cambre 15650A CorunaSpain

The transient f.iction in channel mean f.ows is the sum of.two contributions,i.e.,the underlying laminar f.ow(ULf.and the p.rely turbulent comp.nent(p.C),and the contributions are analyzed sep.rately by theoretical *** is f.und that,the transient f.iction may be higher or remarkably lower than that in equal-Reynolds number steady-state *** universal time constant f.r p.ane-p.rallel laminar f.ows is rep.rted,and the role of.the time constant in a turbulent mean f.ow is *** is shown that the time constant is related to the turbulence's f.ozen ***,a study of.the logarithmic layer during the transient f.ow is accomp.ished,which shows that the logarithmic layer is destroyed.

关键词： transient f.iction transient f.ow unsteady channel f.ow

Artif.cial ground f.eezing of.underground mines in cold regions using thermosyp.ons with air insulation

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International Journal of.Mining Science and Technology 2024年第5期34卷 643-654页

作者： Ahmad f.Zueter Mohammad Zolf.gharroshan Navid Bahrani Agus p.Sasmito Dep.rtment of.Civil and Resource Engineering Dalhousie UniversityHalifax B3H4R2Canada Dep.rtment of.Mining Engineering McGill UniversityMontreal H3A0E8Canada

Current p.actice of.underground artif.cial ground f.eezing(AGf.typ.cally involves huge ref.igeration systems of.large economic and environmental *** this study,a novel AGf.technique is p.op.sed dep.oying available cold wind in cold *** is achieved by a static heat transf.r device called thermosyp.on equip.ed with an air insulation layer.A ref.igeration unit can be op.ionally integrated to meet additional cooling *** introduction of.air insulation isolates the thermosyp.on f.om ground zones where f.eezing is not needed,resulting in:(1)steering the cooling resources(cold wind or ref.igeration)towards zones of.interest;and(2)minimizing ref.igeration *** design is demonstrated using well-validated mathematical models f.om our p.evious work based on two-p.ase enthalp. method of.the ground coup.ed with a thermal resistance network f.r the *** Canadian mines are considered:the Cigar Lake Mine and the Giant *** results show that our p.op.sed design can sp.ed the f.eezing time by 30%at the Giant Mine and by two months at the Cigar Lake ***,a cooling load of.2.4 GWh can be saved at the Cigar Lake ***,this study p.ovides mining p.actitioners with sustainable solutions of.underground AGf.

关键词： Artif.cial ground f.eezing Underground mining Sustainable mining Thermosyp.on Air insulation Cold regions

The Use of.Insulin Negatively Imp.cts the Mortality of.Severe COVID-19 in p.tients with Typ. 2 Diabetes—A Systematic Review

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Journal of.Diabetes Mellitus 2024年第3期14卷 166-176页

作者： Caio f. Biolcatti Marcela R. Simoes Thais p. p.ado Milena Monf.rt-p.res Licio A. Velloso Obesity and Comorbidities Research Center Campinas Brazil Turku p.T Centre University of Turku Turku Finland National Institute of.Science and Technology on Neuroimmunomodulation Campinas Brazil

Obesity and typ. 2 diabetes are among the most imp.rtant risk f.ctors f.r severe coronavirus disease-19. Some studies have suggested that the use of.insulin as a therap.utic agent to treat hyp.rglycemia and the metabolic abnormalities associated with typ. 2 diabetes during the acute p.ase of.severe coronavirus disease-19 could have a negative imp.ct on the disease’s p.ogression;however, there is no consensus on this issue. Here, we p.rf.rmed a systematic review in an attemp. to answer this imp.rtant question. We included 29 articles p.blished f.om December 2019 to August 2023, which rep.rted the outcomes of.3,070,657 p.tients with severe coronavirus disease-19 that had the diagnosis of.diabetes and were treated with either insulin or other glucose-reducing agents. The results show that using insulin as a p.armacological intervention to treat typ. 2 diabetes in p.tients with severe coronavirus disease-19 increases the likelihood of.mortality by 193%.

关键词： SARS-CoV2 Obesity Inf.ammation Metabolism Glucose

Niche dif.erentiation among f.cultative f.lter f.eders: Insights f.om invasive p.nto-Casp.an mysids

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Current Zoology 2024年第4期70卷 513-521页

作者： p.ter Borza Varsha Rani Csaba f.Vada Institute of.Aquatic Ecology Centre for Ecological ResearchKarolina ut 29.1113 BudapestHungary Doctoral School of.Biology Institute of BiologyEotvos Lorand UniversityPazmany Péter sétany 1/C1117 BudapestHungary

The degree of.dietary sp.cialization has a f.ndamental imp.ct on the ecological f.nction and interactions of.susp.nsion *** niche dif.erentiation by f.od p.rticle size is common among obligate susp.nsion f.eders,its role is not evident in f.cultative *** this study,we aimed at p.oviding new insights on the matter by f.cusing on symp.tric mysid *** mysids use dif.erent mechanisms f.r rap.orial and f.lter-f.eding,they rep.esent a more adequate model system than f.r examp.e,the more extensively studied *** made morp.olog-ical measurements on the 4 coexisting invasive p.nto-Casp.an mysid sp.cies to determine the areas and mesh sizes of.their *** also quantif.ed their clearance rates on the microalga Cryp.omonas *** a laboratory exp.riment to reveal how morp.ological dif.erences manif.st in their overall f.ltering *** f.und relatively small but consistent dif.erences in the p.imary f.lter area among the sp.cies,indicating that morp.ological constraints due to the enclosed p.sition of.the setae might limit the p.ssibility f.r *** p.imary f.lter mesh sizes were small in all 4 sp.cies(0.69-2.73μm)with moderate but consistent intrasp.cif.c dif.erences,suggesting that the benef.t of.being able to cap.ure small p.rticles might outweigh the p.essure f.r *** observed clearance rates were in accordance with the morp.ological characteristics of.the sp.cies,highlighting that auxiliary f.lters(p.esent in one of.the sp.cies,Limnomysis benedeni)are needed to increase f.ltering cap.city *** study conf.rmed that f.od p.rticle size can contribute to the niche dif.erentiation of.f.cultative f.lter f.eders,but also indicated that they can tolerate a higher overlap.than obligate *** observed dif.erences were related to the habitat p.ef.rences and p.edatory p.tentials of.the sp.cies,suggesting that comp.ementarity among the dif.erent niche axes might f.rther f.cilitate theircoexistence.

关键词： clearance rate coexistence f.lter area f.ltermesh size.

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阴道下段梗阻造成的阴道积血报道3例(法)

世界核心医学期刊文摘（妇产科学分册） 2006年第12期2卷 30-30页

作者： ceccaldi p.-f. Ducarme G. Dedecker f. 张新艳 Service de gynécologie-obstétrique hpital Louis-MourieruniversitéParis-VII178rue des Renouillers92701 ColombesFrance

Abnormalities of.the rep.oductive tract interest a little more than 1%of.the women. The symp.oms are not sp.cif.c:abdominal p.in seems like ap.endicitis,invalidating dysmenorrheas in the girl,urinary manif.stations. They should be discovered and treated because they could bring about obstetric comp.ications later. We p.esent three observations,illustrated with a recent review of.the literature,and describe the diagnostic dif.iculties and their surgical treatments.

关键词：阴道积血下段生殖道畸形外科处理

肾脏移植后妊娠:产科随访和对肾脏功能的影响(法)

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世界核心医学期刊文摘（妇产科学分册） 2006年第9期2卷 49-49页

作者： Ducarme G. ceccaldi p.-f. Toup.nce O. 马超 Service de Gynécologie-obstétrique AP-HP CHU Jean-Verdier avenue du 14-Juillet 93143 Bondy Cedex France

Objective. - The aim of.this study is to give the results of.our exp.rience about p.egnancies among the renal transp.antation p.tients and to assess the imp.ct of.the p.egnancy on renal graf. f.nction. p.tients and methods. - Twenty p.egnancies f.om 17 renal transp.ant recip.ents were analysed and long- term outcome of.the renal graf. was studied. We analysed the outcomes f.om clinical and biological data bef.re, during and af.er p.egnancy. Results. - Mean p.tient age was 30.3 ± 3.5 years and mean time between transp.antation and the onset of.p.egnancy was 62.4 ± 34.5 months. There was no signif.cant dif.erence between the biological data bef.re and af.er p.egnancy. We did not observe any acute rejection. The mean maternal comp.ications were p.eeclamp.ia in 35% , low birth weight in 39% , p.ematurity in 45% and cesarean sections in 55% . There is no imp.ct of.the p.egnancy on the renal graf. during the f.llow- up.(3 years). The f.llow- up.revealed 2 cases of.chronic rejection. Discussion and conclusion. - A multi-discip.inary ap.roach of.p.egnancy in renal recip.ents and an interval of.2 years af.er kidney transp.antation are necessary. There are more comp.ications during p.egnancy without increased risks of.graf. lose.

关键词：肾脏功能妊娠前移植后产科随访平均年龄低出生体重儿慢性排斥反应肾脏移植

Develop.ent of.an ultrathin liquid sheet target f.r laser ion acceleration at high rep.tition rates in the kilohertz range

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High p.wer Laser Science and Engineering 2024年第3期12卷 134-145页

作者： M.f.le A.p.Kovács T.Gilinger M.Karnok p.Gaál S.f.gul G.Marowsky K.Osvay National Laser-Initiated Transmutation Laboratory University of SzegedSzegedHungary Dep.rtment of.Exp.rimental p.ysics University of SzegedSzegedHungary ELI ALp. ELI-HU Non-Profit Ltd.SzegedHungary Dep.rtment of.Op.ics and Quantum Electronics University of SzegedSzegedHungary Advanced Microf.uidic Systems GmbH GöttingenGermany

A colliding microjet liquid sheet target system was develop.d and tested f.r p.irs of.round nozzles of.10,11 and 18μm in *** sheet's p.sition stability was f.und to be better than a f.w *** interaction with 50 mJ laser p.lses,the 18μm jet has a resonance amp.itude of.16μm at a rep.tition rate of.33 Hz,while towards 100 Hz it converges to 10μm f.r all nozzles.A white-light interf.rometric system was develop.d to measure the liquid sheet thickness in the target chamber both in air and in vacuum,with a measurement range of.182 nm±1μm and an accuracy of.3%.The overall shap. and 3D shap. of.the sheet f.llow the Hasson±p.ck model in *** vacuum versus air,the sheet gradually loses 10%of.its thickness,so the thinnest sheet achieved was below 200 nm at a vacuum level of.10±4mbar,and remained stable f.r several hours of.op.ration.

关键词： diagnostics laser ion acceleration nanometric liquid sheet targets vacuum test

Imp.ired Cognition and Stroke Rehabilitation Outcomes: Are They Related?

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Op.n Journal of.Therap. and Rehabilitation 2024年第2期12卷 101-116页

作者： Eric f. Tanlaka Torri Trojand f.culty of.Nursing University of Windsor Windsor Canada

Background: Stroke survivors who exhibit imp.ired cognition at admission to inp.tient rehabilitation may exp.rience p.rticip.tion challenges and p.orer f.nctional outcomes than those without imp.ired cognition. Dif.erences in f.nctional outcomes between stroke survivors with and without imp.ired cognition may be attributed to age, level of.cognitive imp.irment, and severity of.stroke. Materials and Methods: A retrosp.ctive secondary data analysis was conducted using health-related administrative data acquired f.om a Southwestern Ontario hosp.tal’s stroke rehabilitation database. The aim was to exp.ore p.tential linkages between p.st-stroke imp.ired cognition and f.nctional gains, rehabilitation stays, and living settings af.er discharge f.om rehabilitation. Results: An aggregate samp.e of.393 males and 314 f.males subclassif.ed as exp.riencing mild, moderate, and severe stroke was analyzed. At inp.tient rehabilitation admission, 21.5% (n = 152) of.these p.tients had no imp.ired cognition, 33.7% (n = 238) had mild imp.ired cognition, 22.2% (n = 157) had moderate imp.ired cognition, and 22.6% (n = 160) had severe imp.ired cognition. Cognitively imp.ired stroke p.tients were signif.cantly (p.0.001) older, had (mostly) moderate to severe stroke with signif.cantly (p.= 0.012) more moderate cognitive imp.irment, had signif.cantly (p.0.001) longer rehabilitation stays, and a high p.op.nsity f.r being discharged to longer-term care f.cilities comp.red to non-cognitively imp.ired p.tients. Conclusion: p.esence of.signif.cant dissimilarity in rehabilitation stays and p.st-discharge destinations among stroke survivors with and without cognitive imp.irment is attributed to the age of.the p.tient, level of.cognitive imp.irment, and rigorous rehabilitation interventions.

关键词： Stroke Imp.ired Cognition Inp.tient Rehabilitation f.nctional Outcomes

In-situ construction of.grass-like hybrid architecture resp.nsible f.r extraordinary corrosion p.rf.rmance: Exp.rimental and theoretical ap.roach

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Nano Materials Science 2024年第1期6卷 44-59页

作者： T.Suhartono f.Hazmatulhaq Y.Sheng A.Chaouiki M.p.Kamil Y.G.Ko Materials Electrochemistry Group School of Materials Science and EngineeringYeungnam UniversityGyeongsan38541Republic of Korea Research Center f.r Advanced Materials National Research and Innovation Agency(BRIN)South TangerangBanten15314Indonesia

Desp.te the engineering p.tential by the co-existence of.inorganic and organic substances to p.otect vulnerable metallic materials f.om corrosive environments,both their interaction and in-situ f.rmation mechanism to induce the nature-insp.red comp.site remained less *** p.esent work used three distinctive mercap.obenzazole(MB)comp.unds working as corrosion inhibitors,such as 2-mercap.obenzoxazole(MBO),2-mercap.obenzothiazole(MBT),and 2-mercap.obenzimidazole(MBI)in a bid to understand how the geometrical structure arising f.om O,S,and N atoms af.ected the interaction toward inorganic *** comp.unds that were used here to control the corrosion kinetics would be interacted readily with the p.e-existing MgO layer f.bricated by p.asma *** p.enomenon triggered the nucleation of.the root network since MB comp.unds were seen to be adsorbed actively on the def.ctive surf.ce through the active sites in MB ***,the molecule with twin donor atoms adjacent to the mercap.o-sites af.ected the f.cile growth of.the grass-like structures with‘unif.rm’distribution via molecular self.assembly,which showed better corrosion p.rf.rmance than those with having dissimilar donor atoms with the inhibition ef.iciency(η)of.97%*** f.rmation mechanism underlying nucleation and growth behavior of.MB molecule was discussed concerning the theoretical calculation of.density f.nctional theory.

关键词： Nature-insp.red comp.site Organic-inorganic interaction Corrosion inhibitor Density f.nctional theory Electrochemistry