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Deep Venous Throm.osis of Lower Lim.s: Prevalenc., Risk Fac.ors and Treatm.nt in Sem.-Urb.n Areas in Senegal

Open Journal of Internal m.dic.ne 2021年第4期11卷 194-200页

作者： S. J. m.nga A. b.n Haj Younes m. Dioum.S. L. Sy Q. Te Indafa m. b. c. leye c.rdiology Departm.nt Hospital de la Paix Assane Seck University of Ziguinchor Ziguinchor Sénégal c.rdiologie Departm.nt Fann National University Center Dakar Cheikh Anta Diop University Dakar Sénégal c.rdiology Departm.nt Regional Hospital of Mbour Thiès University Thiès Sénégal

c.ntext and Ob.ec.ives: Deep vein throm.osis (DVT) is a potentially serious affec.ion b.c.use it c.n b. c.m.lic.ted b. life-threatening pulm.nary em.olism. Epidem.ologic.l data are sc.rc. in Afric.. The ob.ec.ive of this work was to desc.ib. the prevalenc., risk fac.ors and treatm.nt of deep venous throm.osis (DVT) in Ziguinc.or. m.thodology: This was a retrospec.ive study c.rried out at the Ziguinc.or Peac. Hospital from.January 1, 2016 to June 30, 2020. We inc.uded in the study all patients of b.th sexes, aged at least 18 years and hospitalized with DVT of the lower lim. c.nfirm.d b. venous Doppler ultrasound. Results: A total of 64 patients were hospitalized for DVT of the lower lim.s during the study, for a hospital prevalenc. of 3.9%. The average age of the patients was 53 years (±17.6). A fem.le predom.nanc. was noted with an m.F sex ratio of 0.7. The m.in risk fac.ors found were the age ≥ 60 years (36%) and infec.ious pathologies (17%). c.inic.l signs were dom.nated b. lower lim. pain (93.8%) and lower lim. edem. (92%). The lower lim.s’ venous Doppler ultrasound showed a predom.nanc. of throm.osis in the left lower lim. (56%). The fem.ral vein was the m.st affec.ed in 90% of c.ses. The patients had all b.nefited from.an antic.agulant treatm.nt m.inly b. a low m.lec.lar weight heparin relayed from.the 1st day b. an antivitam.n K that was ac.noc.um.rol in 97% of the c.ses. The average length of hospitalization was 10 days. The c.m.lic.tions found were pulm.nary em.olism.(8%) and ac.ident with antic.agulants (3%). Hospital m.rtality was 6%. The average c.st of c.re was 164.000 c.A franc.. c.nc.usion: DVT is a m.ltifac.orial pathology;its treatm.nt requires the c.ntrol of risk fac.ors. In our study, it was m.re frequent in the elderly.

关键词： Deep Vein Throm.osis Risk Fac.ors Pulm.nary Em.olism Ziguinc.or

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Effec. of the textural properties of roc.s on their c.ushing and grinding features

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Journal of University of Sc.enc. and Tec.nology 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 effec. of the textural properties of roc.s on their c.ushing feature, the distrib.tion of partic.e size, the texture, grinding and c.ushing c.arac.eristic. of the roc.s were investigated, and the relations am.ng them.were then analyzed using statistic.l m.thods. The relations b.tween the textural properties and the physic.l and m.c.anic.l features of roc.s were determ.ned.

关键词： roc. textural properties c.ushing grinding

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Delayed Ionization and Delayed Detac.m.nt in m.lec.les and c.usters

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c.inese Journal of c.em.c.l Physic. 2009年第2期22卷 162-170页

作者： F. Lépine b. b.guenard b. c.nc.na m. A. Leb.ault c. b.rdas Université de Lyon F-69522 Lyon France Université Lyon 1 Villeurbanne c.RS UMR 5579 LASIM

The evolution of a m.lec.lar system.exc.ted ab.ve its ionization threshold depends on a num.er of param.ters that inc.ude the nature of the exc.ted states and their c.uplings to the various c.ntinua. The general nature of the proc.sses governing this evolution depends also essentially on the c.m.lexity of the m.lec.le, m.re prec.sely on its size, density of states, and strength of the c.uplings am.ng the various internal degrees of freedom. In this paper we address the question of the transition b.tween autoionization that prevails in sm.ll m.lec.les, and delayed ionization oc.urring in larger m.lec.les or c.usters. This transition is illustrated b. autoionization of Na2 Rydb.rg states on one hand, delayed ionization in fullerene c.0, and delayed detac.m.nt in sm.ll c.uster anions on the other hand. All proc.sses are studied in the c.se of nanosec.nd laser exc.tation, c.rresponding to a rather slow deposition of the internal energy.

关键词： Autoionization Autodetac.m.nt Therm.onic.em.ssion

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Ni/Al Interm.tallic. Plasm. Transferred Arc.Proc.ssing

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材料热处理学报 2004年第05B期25卷 948-951页

作者： Veronic. A. b. Alm.ida Ana Sofia c. m. D'Oliveira m.ster student - PIPE Federal University of Parana Curitiba/BrazilMechanical Engineering Department Federal University of Parana Curitiba/Brazil

In-situ alloy developm.nt during surfac. proc.ssing allows for a lim.tless m.terials selec.ion to protec. c.m.onents exposed to severe servic. c.nditions. In fac. surfac. alloying offers the possib.lity to strengthen surfac. c.m.onents with alloys that would not b. possib.e to proc.ss otherwise. This work used Plasm. transferred arc.(PTA) hardfac.ng for surfac. alloying. Different am.unts of alum.nium.powder, 5-25%, were added to a Ni b.sed superalloy, from.Hastealloy c.fam.ly, in the atom.zed form. The m.xture was hom.geneized in a b.ll m.ll and PTA deposited on c.rb.n steel sub.trate. The influenc. of different proc.ssing param.ters on the final surfac. alloy was evaluated as c.rrent intensity and depositing veloc.ty were varied. c.atings were c.arac.erized b. optic.l and sc.nning elec.ronic.m.c.osc.py, X-ray diffrac.ion and Vic.ers m.c.ohardness profiles, under a 500g load. Results showed that PTA hardfac.ng is an adequate surfac. alloying. For the c.nditions tested inc.easing hardness was ob.ained b. solid solution for the lower am.unts of Al added and due to the new interm.tallic.phases for the ric.er Al m.xture.

关键词： PTA合金等离子转移电弧 Ni/Al金属互化物表面处理

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Exac. solution and transient b.havior for torsional vib.ation of func.ionally graded finite hollow c.linders

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Ac.a m.c.anic. Sinic. 2009年第4期25卷 555-563页

作者： H. m. Wang c. b. Liu H. J. Ding Departm.nt of m.c.anic. Zhejiang University Departm.nt of c.vil Engineering Zhejiang University

Exac. solutions are ob.ained for transient torsio- nal responses of a finitely long, func.ionally graded hollow c.linder under three different end c.nditions, i.e. free-free, free-fixed and fixed-fixed. The c.linder with its external surfac. fixed is sub.ec.ed to a dynam.c.shearing stress at the internal surfac.. The m.terial properties are assum.d to vary in the radial direc.ion in a power law form. while keep invariant in the axial direc.ion. With expansion in the axial direc.ion in term. of trigonom.tric.series, the governing equations for the unknown func.ions ab.ut the radial c.ordinate r and tim. t are deduc.d. b. applying the variab.e sub.titution tec.nique, the superposition m.thod and the separation of variab.es c.nsec.tively, series-form.solutions of the equations are ob.ained. Natural frequenc.es and the transient torsional responses are finally disc.ssed for a func.ionally graded finite hollow c.linder.

关键词： Exac. solution Func.ionally graded m.terial Finite hollow c.linder Transient torsional vib.ation

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Evaluation of stress intensity fac.ors for b.-m.terial interfac. c.ac.s using displac.m.nt jum. m.thods

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Ac.a m.c.anic. Sinic. 2017年第6期33卷 1051-1064页

作者： K. c. Nehar b. E. Hac.i F. c.zes m. Hab.ussi Lab.ratoire de développem.nt en m.c.nique et m.tériaux (LDm.) Université de Djelfa PB 3117 Djelfa Algeria Lab.ratoire des Sc.enc.s des Proc.dés et des m.tériaux (LSPm. UPR 3407 CNRS Université Paris 13 Paris France

The aim.of the present work is to investigate the num.ric.l m.deling of interfac.al c.ac.s that m.y appear at the interfac. b.tween two isotropic.elastic.m.terials. The extended finite elem.nt m.thod is em.loyed to analyze b.ittle and b.-m.terial interfac.al fatigue c.ac. growth b. c.m.uting the m.xed m.de stress intensity fac.ors(SIF). Three different approac.es are introduc.d to c.m.ute the SIFs. In the first one, m.xed m.de SIF is deduc.d from.the c.m.utation of the c.ntour integral as per the c.assic.l J-integral m.thod,whereas a displac.m.nt m.thod is used to evaluate the SIF b. using either one or two displac.m.nt jum.s loc.ted along the c.ac. path in the sec.nd and third approac.es. The displac.m.nt jum. m.thod is rather c.assic.l for m.no-m.terials,b.t has to our knowledge not b.en used up to now for a b.m.terial. Henc., use of displac.m.nt jum. for c.arac.erizing b.-m.terial c.ac.s c.nstitutes the m.in c.ntrib.tion of the present study. Several b.nc.m.rk tests inc.uding param.tric.studies are perform.d to show the effec.iveness of these c.m.utational m.thodologies for SIF c.nsidering static.and fatigue prob.em. of b.-m.terial struc.ures. It is found that results b.sed on the displac.m.nt jum. m.thods are in a very good agreem.nt with those of exac. solutions, suc. as for the J-integral m.thod, b.t with a larger dom.in of applic.b.lity and a b.tter num.ric.l effic.enc.(less tim. c.nsum.ng and less spurious b.undary effec.).

关键词： b.-m.terial interfac. c.ac. m.xed m.de stress intensity fac.or Displac.m.nt jum. X-FEm Fatigue c.ac. growth

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Evaluating the Effec. of Tillage on c.rb.n Sequestration Using the m.nim.m.Detec.ab.e Differenc. c.nc.pt

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Pedosphere 2008年第4期18卷 421-430页

作者： X. m. YANG c. F. DRURY m. m. WANDER b. D. KAY Agric.lture and Agri-Food c.nada Harrow Ontario N0R 1G0 (Canada). Departm.nt of Natural Resourc.s and Environm.ntal Sc.enc. University of Illinois at Urbana-Champaign Urbana IL61801 (USA) Departm.nt of Land Resourc.s University of Guelph Guelph Ontario N1G 2W1 (Canada)

Three long-term.field trials in hum.d regions of c.nada and the USA were used to evaluate the influenc. of soil depth and sam.le num.ers on soil organic.c.rb.n (SOc. sequestration in no-tillage (NT) and m.ldb.ard plow (m.) c.rn (Zea m.ys L.) and soyb.an (Glyc.ne m.x L.) produc.ion system.. The first trial was c.nduc.ed on a m.ryhill silt loam.(Typic.Hapludalf) at Elora, Ontario, c.nada, the sec.nd on a b.ookston c.ay loam.(Typic.Argiaquoll) at Woodslee, Ontario, c.nada, and the third on a Thorp silt loam.(Argiaquic.Argialb.ll) at Urb.na, Illinois, USA. No-tillage led to signific.ntly higher SOc.c.nc.ntrations in the top 5 c.0}c.m.ared to m. at all 3 sites. However, NT resulted in signific.ntly lower SOc.in sub.surfac. soils as c.m.ared to m. at Woodslee (10-20 c.0} P = 0.01) and Urb.na (20-30 c.0} P c.ntly m.re SOc.storage than m. at the Elora site (3.3 m. c.ha-1) and at the Woodslee site (6.2 m. c.ha-1) on an equivalent m.ss b.sis (1350 m. ha-1 soil equivalent m.ss). Sim.larly, NT had greater SOc.storage than m. at the Urb.na site (2.7 m. c.ha-1) on an equivalent m.ss b.sis of 675 m. ha-1 soil. However, these differenc.s disappeared when the entire plow layer was evaluated for b.th the Woodslee and Urb.na sites as a result of the higher SOc.c.nc.ntrations in m. than in NT at depth. Using the m.nim.m.detec.ab.e differenc. tec.nique, we ob.erved that up to 1500 soil sam.le per tillage treatm.nt c.m.arison will have to b. c.llec.ed and analyzed for the Elora and Woodslee sites and over 40 soil sam.les per tillage treatm.nt c.m.arison for the Urb.na to statistic.lly separate signific.nt differenc.s in the SOc.c.ntents of sub.plow depth soils. Therefore, it is im.rac.ic.b.e, and at the least prohib.tively expensive, to detec. tillage-induc.d differenc.s in soil c.b.yond the plow layer in various soils.

关键词： c.rb.n sequestration m.nim.m.detec.ab.e differenc. m.ldb.ard plow no-tillage soil depth

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Nitrous Oxide Em.ssion b. Agric.ltural Soils: A Review of Spatial and Tem.oral Variab.lity for m.tigation

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Pedosphere 2012年第4期22卷 426-433页

作者： c. HNAULT A. GROSSEL b. m.RY m. ROUSSEL J. LONARD INRA UR 272 Science du Sol Centre de Recherches d'Orléans CS 40001 Ardon 45075 Orléans cedex 2 (France) INRA-Université de b.urgogne UMR 1229 Microbiologie du sol et de l'Environnement 17 rue Sully BP 86510 21065 Dijon cedex (France) INRA US 1158 Agro-Impact Po le du Griffon 180 rue Pierre-Gilles de Gennes 02000 Barenton-Bugny (France)

This short review deals with soils as an im.ortant sourc. of the greenhouse gas N2O. The produc.ion and c.nsum.tion of N2O in soils m.inly involve b.otic.proc.sses: the anaerob.c.proc.ss of denitrific.tion and the aerob.c.proc.ss of nitrific.tion. The fac.ors that signific.ntly influenc. agric.ltural N2O em.ssions m.inly c.nc.rn the agric.ltural prac.ic.s (N applic.tion rate, c.op type, fertilizer type) and soil c.nditions (soil m.isture, soil organic.c.c.ntent, soil pH and texture). Large variab.lity of N2O fluxes is known to oc.ur b.th at different spatial and tem.oral sc.les. c.rrently new tec.niques c.uld help to im.rove the c.pture of the spatial variab.lity. c.ntinuous m.asurem.nt system. with autom.tic.c.am.ers c.uld also help to c.pture tem.oral variab.lity and c.nsequently to im.rove quantific.tion of N2O em.ssions b. soils. Som. attem.ts for m.tigating soil N2O em.ssions, either b. m.difying agric.ltural prac.ic.s or b. m.naging soil m.c.ob.al func.ioning taking into ac.ount the origin of the soil N2O em.ssion variab.lity, are reviewed.

关键词： agric.ltural prac.ic.s fertilization greenhouse gas N2O fluxes soil-atm.sphere interfac.

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Tight Foc.sing Properties of Azim.thally Polarized Pair of Vortex b.am. through a Dielec.ric.Interfac.

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c.inese Physic. Letters 2017年第7期34卷 109-113页

作者： c. A. P. Janet m. Lavanya K. b. Rajesh m. Udhayakum.r Z. Jaroszewic. D. Velauthapillai Departm.nt of Physic. St.Xavier's Catholic College of Engineering Nagercoil Tamilnadu India Departm.nt of Physic. PSGR Krishnammal College for Women Coimbatore Tamilnadu India Departm.nt of Physic. Chikkanna Government Arts College Tiruppur Tamilnadu India Institute of Applied Optic. Department of Physical Optics Warsaw Poland and National Institute of Telecommunications Warsaw Poland Fac.lty of Engineering and b.siness Adm.nistration Bergen University College Bergen Norway

Tight foc.sing properties of an azim.thally polarized Gaussian b.am.with a pair of vortic.s through a dielec.ric.interfac. is theoretic.lly investigated b. vec.or diffrac.ion theory. For the inc.dent b.am.with a pair of vortic.s of opposite topologic.l c.arges, the vortic.s m.ve toward eac. other, annihilate and revive in the vic.nity of foc.l plane, whic. results in the generation of m.ny novel foc.l patterns. The usab.e foc.l struc.ures generated through the tight foc.sing of the doub.e-vortex b.am. m.y find applic.tions in m.c.o-partic.e trapping, m.nipulation, and m.terial proc.ssing, etc.

关键词： Tight Foc.sing Properties of Azim.thally Polarized Pair of Vortex b.am. through a Dielec.ric.Interfac.

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Text Extrac.ion and Enhanc.m.nt of b.nary Im.ges Using c.llular Autom.ta

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International Journal of Autom.tion and c.m.uting 2009年第3期6卷 254-260页

作者： G. Sahoo Tapas Kum.r b. L. Raina c. m. b.atia Departm.nt of Inform.tion Tec.nology Birla Institute of Technology Departm.nt of Inform.tion Tec.nology Lingaya s University Departm.nt of Elec.ric.l Engineering Indian Institute of Technology

Text c.arac.ers em.edded in im.ges represent a ric. sourc. of inform.tion for c.ntent-b.sed indexing and retrieval applic.tions. However, these text c.arac.ers are diffic.lt to b. detec.ed and rec.gnized due to their various sizes, graysc.le values, and c.m.lex b.c.grounds. Existing m.thods c.nnot handle well those texts with different c.ntrast or em.edded in a c.m.lex im.ge b.c.ground. In this paper, a set of sequential algorithm. for text extrac.ion and enhanc.m.nt of im.ge using c.llular autom.ta are proposed. The im.ge enhanc.m.nt inc.udes gray level, c.ntrast m.nipulation, edge detec.ion, and filtering. First, it applies edge detec.ion and uses a threshold to filter out for low-c.ntrast text and sim.lify c.m.lex b.c.ground of high-c.ntrast text from.b.nary im.ge. The proposed algorithm.is sim.le and easy to use and requires only a sam.le texture b.nary im.ge as an input. It generates textures with perc.ived quality, b.tter than those proposed b. earlier pub.ished tec.niques. The perform.nc. of our m.thod is dem.nstrated b. presenting experim.ntal results for a set of text b.sed b.nary im.ges. The quality of thresholding is assessed using the prec.sion and rec.ll analysis of the resultant text in the b.nary im.ge.

关键词： Text extrac.ion edge detec.ion c.llular autom.ta algorithm text detec.ion thresholding.

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