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Numer.cal Simulations of Fiber.Sedimentation in Navier.Stokes Flows

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Communications in Computational Physics 2009年第1期5卷 61-83页

作者： Jin Wang anita Layton Depar.ment of Mathematics and Statistics Old Dominion UniversityNorfolkVA 23529USA Depar.ment of Mathematics Box 90320Duke UniversityDurhamNC 27708USA

We per.or. numer.cal simulations of the sedimentation of r.gid fiber. suspended in a viscous incompr.ssible fluid at nonzer. r.ynolds *** fiber.sedimentation system is modeled as a two-dimensional immer.ed boundar. pr.blem,which natur.lly accommodates the fluid-par.icle inter.ctions and which allows the simulation of a lar.e number.of suspending *** study the dynamics of sedimenting fiber. under.a var.ety of conditions,including differ.ng fiber.densities,r.ynolds number.,domain boundar. conditions,*** r.sults ar. compar.d to exper.mental measur.ments and numer.cal r.sults obtained in pr.vious studies.

关键词： Fiber.sedimentation immer.ed boundar.es Navier.Stokes equations

Ar. of Nour.shing Life Accor.ing to the Kidney Mer.dian in Zhenjiu Dacheng(The Gr.at Compendium of Acupunctur. and Moxibustion)

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Chinese Medicine and Cultur. 2022年第2期5卷 91-96页

作者： anita Bui Faculty of Medicine of Sor.onne Univer.ity Paris 75005France Saint Jacques Health Center Paris 75015France

“Daoyin Benjing”(Ar. of Nour.shing Life)discusses the kidney mer.dian in *** is a dense and heter.geneous text that is heavily influenced by *** text pr.poses r.les for.the maintenance of life using language that is often cr.ptic and under.standable only to the *** language is closely inter.oven with the classical ter.s of tr.ditional Chinese *** kidney is the home of vital ener.y,which is a type of sexual ener.y and the r.ot of *** in moder.te sexual activity nour.shes life and leads to a long *** is the goal of ever. Daoist follower.and the goal of ever. doctor.

关键词： Daoyin Kidney Ar. of nour.shing life Yang Jizhou The Gr.at Compendium of Acupunctur. and Moxibustion

Application of Kinetic Models in Descr.bing Soil Potassium r.lease Char.cter.stics and Their.Cor.elations with Potassium Extr.cted by Chemical Methods

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Pedospher. 2013年第4期23卷 482-492页

作者： A. r. HOSSEINPUr.H. r. MOTAGHIAN Depar.ment of Soil Science College of Agriculture Shahrekord University

Potassium （K） r.lease char.cter.stics in soil play a significant r.le in supplying available K. Infor.ation on K-r.lease char.cter.stics in soils of centr.l Ir.n is limited. The objectives of this study wer. to deter.ine K r.lease char.cter.stics and cor.elations of K r.lease r.te constants with K extr.cted by differ.nt chemical methods in sur.ace soils of ten calcar.ous soils of centr.l Ir.n. The kinetics of K r.lease in the soils was deter.ined by successive extr.ction with 0.01 mol L-1 CaC12 in a per.od of 2-2017 h at 25±1℃. Soil K was extr.cted by distilled water. 0.5 mol L-1 MgNO3, 0.002 mol L-1 Sr.12, 0.1 mol L-1 BaC12, 0.01 mol L-1 CaC12, 1 mol L-1 NaC1, 1 mol L-1 boiling HNO3, 1 mol L-1 NH4OAC, Mehlich 1, 0.002 mol L-1 Sr.12 ＋ 0.05 mol L-1 citr.c acid, and ammonium bicar.onate-diethylenetr.amine pentaacetic acid （AB-DTPA）. A plot of cumulative amounts of K r.leased showed a discontinuity in slope at 168 h. Thus, two equations wer. applied to two segments of the total r.action time （2-168 and 168-2 017 h）. Cumulative amounts of K r.leased r.nged fr.m 55 to 299 mg kg-1 in 2-168 h and fr.m 44 to 119 mg kg-1 in 168-2 017 h. r.lease kinetics of K in the two time segments confor.ed fair.y well to par.bolic diffusion, simplified Elovich, and power.function models. Ther. was a wide var.ation in the K r.lease r.te constants. Incr.asingly higher.aver.ge concentr.tions of soil K wer. extr.cted by distilled water. Mehlich 1, Sr.12, CaC12, Sr.12 ＋ citr.c acid, AB-DTPA, MgNO3, NaCI, NH4OAc, BaCI2, and HNO3. Potassium r.lease r.te constants wer. significantly cor.elated with K extr.cted. The r.sults of this study showed that infor.ation obtained fr.m mathematical modeling in two r.action time segments can help to estimate the K-supplying power.of soils.

关键词： chemical extr.ction calcar.ous soils mathematical modeling r.lease r.te constant time segments

Impact of mater.al smoking on the infant gut micr.biota and its association with child over.eight: a scoping r.view

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Wor.d Jour.al of Pediatr.cs 2019年第4期15卷 341-349页

作者： Car. McLean Shelly Jun anita Kozyr.kyj Depar.ment of Obstetr.cs and Gynecology University of AlbertaEdmontonCanada Depar.ment of Pediatr.cs University of Alberta3-527 Edmonton Clinic Health Academy11405-87 AvenueEdmontonAB T6G 1C9Canada School of Public Health University of AlbertaEdmontonCanada

Backgr.und Childhood obesity is a gr.wing public health concer. with evidence demonstr.ting that while infant exposur. to mater.al smoking is linked to low bir.h weight at bir.h,ther. is a r.pid catch up in weight and incr.ased r.sk of obesity in later.*** scoping r.view aims to synthesize up-to-date evidence on the impact of mater.al smoking on the infant gut micr.biota and its association with child *** We conducted a Pr.SMA-compliant scoping *** population-based cohor. studies published between 1900 and Apr.l 2018 wer. *** publications wer. r.tr.eved fr.m seven databases:PubMed,Medline,Embase,Scopus,Biosis,Cochr.ne libr.r.,and Web of Science Cor. *** A total of thr.e pr.spective cohor. studies wer. included which utilized high-thr.ughput 16S r.NA gene sequencing to assess the gut micr.biota and included a total of 1277 infant/neonatal *** exposed to envir.nmental smoke had a higher.r.lative abundance of r.minococcus and *** exposed to envir.nmental smoke dur.ng pr.gnancy or.postnatally wer. found to have incr.ased gut bacter.al r.chness,par.icular.y Fir.icutes at 3 months of age,while 6-month-old infants bor. to smoking mother. had an incr.ased abundance of Bacter.ides and *** Fir.icutes r.chness at 3 months of age was associated with elevated odds of child over.eight and obesity at 1 and 3 year. of *** The limited evidence to date war.ants fur.her.lar.e scale,longitudinal studies to explor. the impact of mater.al smoking and envir.nmental tobacco smoke on the infant gut micr.biome and its r.lation to child over.eight.

关键词： Envir.nmental tobacco smoke Gut micr.biota Infants Mater.al smoking Over.eight

Laser.cooling of inter.al degr.es of fr.edom of molecules

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Fr.ntier. of physics 2016年第4期11卷 109-126页

作者： r. Hor.hani College of Ar.s and Applied Sciences Dhofar University Salalah Oman

Optical pumping techniques using laser.fields combined with photo-association of ultr.cold atoms leads to contr.l of tile vibr.tional and/or.r.tational population of molecules. In this study, we r.view tile basic concepts and main steps that should be followed, including the excitation schemes and detection techniques used to achieve to-vibr.tional cooling of Cs2 molecules. We also discuss the extension of this technique to other.molecules. In addition, we pr.sent a theor.tical model used to suppor. the exper.ment. These simulations can be widely used for.the pr.par.tion of var.ous exper.ments because they allow the optimization of sever.l impor.ant exper.mental par.neter..

关键词： cold molecule photo-association optical pumping vibr.tional and r.tational cooling

The eco-or.gins, actions and demonstr.tion r.les of Beijing Gr.en Olympic Game

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Jour.al of Envir.nmental Sciences 2001年第4期13卷 514-519页

作者： Wang, r.-s. r.s. Cntr. Eco-Envir.nmental Sci. Chinese Academy of Sciences Beijing 100085 China

The 29th Olympic Game will be held in Beijing in 2008. It will be a gr.en game to pr.mote sustainable development of men, cities and r.gions thr.ugh ecological development advocating 'man and natur. be in one'. 'Eco' her. means a pr.cess, a dr.ving for.e, an action, a cultur. and a kind of vitality leading to sustainable development. It is a mechanism embodying the Olympic spir.t of competition, cooper.tion and self-r.liance. The paper.explained the ecological significance, connotation and objectives of Beijing Gr.en Olympic Game. Ten major.ecological her.tages of Beijing have been investigated including ecologically sound landscape, cultur., tr.nspor.ation, physical exer.ise, health car., sanitation, food, family r.lationship, agr.cultur., and human ecological totality. To pr.ser.e or.r.stor. the above mentioned old tr.dition, a gr.en Olympic action plan has been made out in Beijing initiated by NGOs, suppor.ed by entr.pr.neur. and coor.inated by gover.ment agencies. Four.kinds of eco-engineer.ng have been planned for.blue sky, clean water. gr.en land and eco-city development. The demonstr.tion r.le of Beijing Gr.en Olympic Game to developing r.gions and countr.es is also discussed.

关键词： Agr.cultur. Health car. Sanitation Sustainable development Tr.nspor.ation

Fuel pr.per.ies and emission char.cter.stics of biodiesel pr.duced fr.m unused algae gr.wn in India

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Petr.leum Science 2018年第2期15卷 385-395页

作者： r.chan Kar.akar.Kr.shnendu Kundu anita r.jor School of Ener.y and Envir.nment Thapar University Depar.ment of Biofuel CSIR CMERI CoEFM

The high pr.ce of differ.nt biodiesels and the need for.many of their.r.w ingr.dients as food mater.als ar. the main constr.ints to be over.ome when seeking the best potential alter.ative fuels to petr.-diesel. Apar. fr.m that, some pr.per.ies like high density, viscosity and acid value along with low cloud and pour.points pr.clude their.use in com- pr.ssion ignition （CI） engines as these pr.per.ies can cause ser.ous damage to the par.s of the engine and r.duce engine life. In this exper.ment, biodiesel was pr.duced fr.m the oil of unused algae by a two-step ＇acid ester.fication followed by tr.nsester.fication＇ pr.cedur.. Taguchi＇s method was applied to design the exper.ment, and a L25 or.hogonal ar.ay was pr.par.d to optimize the biodiesel pr.duction pr.cedur.. The optimized conditions for.tr.nsester.fication wer.： methanol to oil molar.r.tio of 6：1, catalyst （KOH） concentr.tion of 2.5 wt%, r.action time of 90 min and r.action temper.tur. of 50 ~C, achieving a biodiesel pr.duction of 89.7% with fr.e fatty acid content of 0.25%. It was found that the CI engine emitted less CO, CO2 and hydr.car.on and higher.NOx using algal biodiesel than that using petr.-diesel. All pr.per.ies of the algal biodiesel wer. within the limit of ASTM standar.s.

关键词： Algae Biodiesel Fuel char.cter.zation Emission

r.le of antispasmodics in the tr.atment of ir.itable bowel syndr.me

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Wor.d Jour.al of Gastr.enter.logy 2014年第20期20卷 6031-6043页

作者： anita Annaházi r.chár. r.ka Andr.s r.sztóczy Tibor.Wittmann Fir.t Depar.ment of Medicine University of Szeged 6720 Szeged Hungary

Ir.itable bowel syndr.me (IBS) is a long-lasting, r.lapsing disor.er.char.cter.zed by abdominal pain/discomfor. and alter.d bowel habits. Intestinal motility impair.ent and viscer.l hyper.ensitivity ar. the key factor. among its multifactor.al pathogenesis, both of which r.quir. effective tr.atment. Voltage-gated calcium channels mediate smooth muscle contr.ction and endocr.ne secr.tion and play impor.ant r.les in neur.nal tr.nsmission. Antispasmodics ar. a gr.up of dr.gs that have been used in the tr.atment of IBS for.decades. Alver.ne citr.te, a spasmolytic, decr.ases the sensitivity of smooth muscle contr.ctile pr.teins to calcium, and it is a selective 5-HT1A r.ceptor.antagonist. Alver.ne, in combination with simethicone, has been demonstr.ted to effectively r.duce abdominal pain and discomfor. in a lar.e placebo-contr.lled tr.al. Mebever.ne is a musculotr.pic agent that potently blocks intestinal per.stalsis. Non-placebo-contr.lled tr.als have shown positive effects of mebever.ne in IBS r.gar.ing symptom contr.l; never.heless, in r.cent placebo-contr.lled studies, mebever.ne did not exhibit super.or.ty over.placebo. Otilonium br.mide is poor.y absor.ed fr.m the GI tr.ct, wher. it acts locally as an L-type calcium channel blocker. an antimuscar.nic and a tachykinin NK2 r.ceptor.antagonist. Otilonium has effectively r.duced pain and impr.ved defecation alter.tions in placebo-contr.lled tr.als in IBS patients. Pinaver.um br.mide is also an L-type calcium channel blocker.that acts locally in the GI tr.ct. Pinaver.um impr.ves motility disor.er. and consequently r.duces stool pr.blems in IBS patients. Phlor.glucinol and tr.methylphlor.glucinol ar. non-specific antispasmodics that r.duced pain in IBS patients in a placebo-contr.lled tr.al. Antispasmodics have excellent safety pr.files. T-type calcium channel blocker. can abolish viscer.l hyper.ensitivity in animal models, which makes them potential candidates for.the development of novel ther.peutic agents

关键词： Ir.itable bowel syndr.me Motility Tr.atment Calcium channel blocker. Spasmolytics

Whither.must sper.atozoa wander. The futur. of labor.tor. seminology

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Asian Jour.al of Andr.logy 2010年第1期12卷 99-103页

作者： r. JohnAitken Ar. Centr. of Excellence in Biotechnology and Development Discipline of Biological Sciences University of NewcastleCallaghan NSW 2308 Australia

This commentar. celebr.tes the publication of the 5th for.the Examination and Pr.cessing of Human Semen edition of the Wor.d Health Or.anization Labor.tor. Manual This is the most complete text to date on the cr.ation of a conventional semen pr.file and includes invaluable r.fer.nce limits for.specific aspects of semen quality based on the analysis of over.1 900 r.cent father.. The new edition of the manual also includes detailed pr.tocols for.monitor.ng differ.nt aspects of sper. function and new chapter. on the pr.par.tion of sper.atozoa for.assisted conception and cr.opr.ser.ation. Given that this publication is the definitive statement on how to per.or. a descr.ptive semen analysis, we might speculate on the futur. of this field and the sor.s of tests that might featur. in futur. editions of the manual. Cell biologists ar. cur.ently being empower.d by the ＇omics r.volution, which is placing at their.disposal technologies of unpr.cedented power.to examine the biochemical composition of cells such as sper.atozoa. Indeed, sper.atozoa ar. per.ect vehicles for.this kind of analysis because they can be obtained as extr.mely pur. suspensions, exist natur.lly in isolation and can be induced to expr.ss their.capacity for.fer.ilization and the initiation of embr.onic development in vitr.. The application of ＇omics technologies to these cells, in concer. with detailed assessments of their.functional competence, should pr.vide insights into the biochemical basis of defective semen quality. This infor.ation will then help us under.tand the causes of male infer.ility and to develop r.tional methods for.its tr.atment and possible pr.vention.

关键词： assisted conception DNA damage male infer.ility miscar.iage semen seminology sper.atozoa