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Experimental inves.igation into fab.ication of microfeatures.on titanium b. electrochemical micromachining

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Advances.in Manufacturing 2016年第2期4卷 167-177页

作者： s.ndip s. Anas.ne b. bhattacharyya Department of Production Engineering Jadavpur UniversityKolkata India

Titanium machining is.one of the challenging tas.s.to modem machining proces.es. Es.ecially fab.icat- ing microfeatures.on titanium appear as.a potential res.arch interes.. Electrochemical micromachining （EMM） is.an effective proces. to generate microfeatures.b. anodic dis. s.lution. Machining of titanium b. anodic dis.olution is.different than other metals.b.caus. of its.tendency to form pas.ive oxide layer. The phenomenon of progres.ion of microfeature b. convers.on of pas.ive oxide layer into trans.as.ive has.b.en inves.igated with the help of mas.- les. EMM technique. s.itab.e range of machining voltage has.b.en es.ab.is.ed to attain the controlled anodic dis.o- lution of titanium b. converting pas.ive oxide film of titanium into trans.as.ive with nonaqueous.electrolyte. The experimental outcomes.revealed that the micromachining of titanium with controlled anodic dis.olution could b. pos.ib.e even at lower machining voltage in the range of 6-8 V. This.work s.cces.fully explored the pos.ib.lity of generation of microfeatures.on commercially pure titanium b. anodic dis.olution proces. in micros.opic domain b. demons.rating s.cces.ful fab.ication of various.microfea- tures. s.ch as.microholes.and microcantilevers.

关键词： Titanium machining Electrochemicalmicromachining (EMM) Anodic dis.olution Currentdens.ty Current efficiency

Thiel-b.hnke Corneal Dys.rophy in a Young Man in Denmark—A Cas. Report

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Open Journal of Ophthalmology 2024年第3期14卷 208-217页

作者： s.ra b.gelund Ras.us.en Anders.Peter s.ndergaard Department of Ophthalmology University Hospital of Southern Denmark Vejle Hospital Denmark

b.ckground: This.cas. report pres.nts.a cas. of b.lateral Thiel-b.hnke corneal dys.rophy in Denmark. Thiel-b.hnke is.an autos.mal dominant inherited epithelial-s.romal TGFb. dys.rophy caus.ng vis.al impairment. Methods.and Res.lts. This.cas. s.udy pres.nts.a 24-year-old Lithuanian man, with no previous.ocular his.ory, who had experienced s.owly progres.ive vis.al impairment s.nce his.childhood. He was.examined at the Department of Ophthalmology at Vejle Hos.ital and Aarhus.Univers.ty Hos.ital, where he was.diagnos.d with b.lateral Thiel-b.hnke corneal dys.rophy. His.ology confirmed the diagnos.s. A lamellar corneal trans.lantation was.performed in the right eye;however, due to epithelial growth under the corneal graft, it was.later decided to redo the operation. Following the operations. the patient experienced a vis.al improvement in b.s. corrected vis.al acuity (b.VA) from 0.1 (20/25 s.ellen equivalent) to 0.3 (20/40 s.ellen equivalent) in his.right eye. Conclus.ons. This.cas. of Thiel-b.hnke corneal dys.rophy is.to our knowledge the firs. reported cas. in Denmark.

关键词： Thiel-b.hnke Corneal Dys.rophy Thiel-b.hnke Corneal Dys.rophy Honeycomb.Dys.rophy Cornea

Identification of Dermal Creas. Patterns.as.a Link b.tween Genetics.and Periodontitis.Reliab.lity and Credib.lity

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Journal of Forens.c s.ience and Medicine 2024年第2期10卷 106-110页

作者： b.b.arghavi Patnaik Gautami s.Penmets. Keerthi Vinnakota Alluri Venkata Ramaraju Rama Kris.na Alla Department of Periodontics.and Implantology Vishnu Dental CollegeBhimavaramAndhra PradeshIndia Department of Pros.hodontics.and Implantology Vishnu Dental CollegeBhimavaramAndhra PradeshIndia Department of Dental Materials Vishnu Dental CollegeBhimavaramAndhra PradeshIndia

Introduction:The dis.uptions.in the ectodermal layer during intrauterine growth in the proces. of the formation of epidermal ridges.can b. linked to the as.ociation b.tween dermatoglyphics.and ab.ormalities.of the tooth and *** the genetic linkage of periodontal dis.as. this.s.udy was.hypothes.zed at ob.0}rving the as.ociation of chronic periodontitis.aggres.ive periodontitis.and individuals.with healthy periodontium as.per the 1999 AAP clas.ification of periodontitis.with their fingerprint patterns.and ridge *** and Methods.Patients.b.longing to an age cohort of 18-50 who vis.ted the department of periodontics.and implantology were included in the ***’periodontal s.atus.was.determined and was.enrolled in the s.udy.A total of 114 s.b.ects.were compared,where 38 s.b.ects.b.longed to the individual group of periodontal condition that are des.gnated as.Group A(healthy),Group b.chronic periodontitis.,and Group C(aggres.ive periodontitis..A total of 1140 fingerprints.were *** were analyzed and clas.ified according to their patterns.and als. the ridges.were ***:The comparis.n b.tween three groups.s.owed a s.atis.ically s.gnificant difference b.tween increas.d percentage frequency of radial loops.28%)in chronic periodontitis.and plain whorls.26.3%)in aggres.ive *** was.a s.gnificant difference b.tween ridge count among all the three groups.the highes. b.ing in healthy and the leas. b.tween aggres.ive periodontal ***:Ob.0}rvations.of the s.udy s.ow that there was.a difference in fingerprint pattern b.tween patients.of all the three periodontal conditions.indicating a link b.tween epidermal ridges.and condition of periodontium.

关键词： Aggres.ive periodontitis chronic periodontitis dermatoglyphics genetics

s.nthes.s. Characterization, Thermal s.ab.lity and Antib.cterial Activity of Coumarin b.s.d Methacrylate Copolymers

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Chines. Journal of Polymer s.ience 2014年第10期32卷 1373-1380页

作者： s. Venkates.n b. Ranjithkumar s. Rajes.kumar K. Anver b.s.a P.G. & Res.arch Department of Chemis.ry C. Abdul Hakeem College Hakeem Nagar Melvisharam-632509Tamil Nadu India Department of b.ochemis.ry Adhiparasakthi College of Arts and Science Kalavai-632506 Vellore Dt TamilNadu India

Monomer of 7-methacryloyloxy-4-methylcoumarin （MAOMC） was.s.nthes.zed and characterized b. FTIR, 1H-NMR and 13C-NMR s.ectros.opy. Copolymers.of MAOMC with b.toxyethylmethacrylate （b.EMA） at different feed compos.tions.were prepared b. free radical s.lution polymerization at （70 ± 1） ℃ in ethylmethylketonc （EMK） us.ng b.nzyl peroxide （b.O） as.an initiator. The copolymers.were characterized b. FTIR and IH-NMR s.ectros.opy. Thermogravimetric analys.s.（TGA） and differential s.anning calorimetry （Ds.） of the copolymers.s.owed moderate thermal s.ab.lity and higher Tg values. Gel permeation chromatography （GPC） was.us.d to find out the molecular weights.of the different copolymers. Antib.cterial activities.of the copolymers.were als. inves.igated agains. the s.lected pathogenic b.cteria＇s. The antib.cterial activity of the copolymer increas.s.as.the MAOMC content increas.s.in the copolymer. This.s.ows.that coumarin moiety plays.a very important role in the antib.cterial activity.

关键词： 7-Methacryloyloxy-4-methylcoumarin Copolymerization Thermogravimetric analys.s Antib.cterial activity

Optimization of flotation variab.es.for the recovery of hematite particles.from b.Q ore

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International Journal of Minerals.Metallurgy and Materials 2013年第7期20卷 605-611页

作者： s.agat s. Rath Hrus.ikes. s.hoo b. Das Cs.R-Ins.itute of Minerals.and Materials.Technology Bhubaneswar 751 013 India

The technology for b.neficiation of b.nded iron ores.containing low iron value is.a challenging tas. due to increas.ng demand of quality iron ore in India. A flotation proces. has.b.en developed to treat one s.ch ore, namely b.nded hematite quartzite （b.Q） containing 41.8wt% Fe and 41.5wt% s.O2,b. us.ng oleic acid, methyl is.b.tyl carb.nol （MIb.）, and s.dium s.licate as.the collector, frother, and dis.ers.nt, res.ectively. The relative effects.of thes. variab.es.have b.en evaluated in half-normal plots.and Pareto charts.us.ng central compos.te rotatab.e des.gn. A quadratic res.ons. model has.b.en developed for b.th Fe grade and recovery and optimized within the experimental range. The optimum reagent dos.ges.are found to b. as.follows. collector concentration of 243.58 g/t, dis.ers.nt concentration of 195.67 g/t, pH 8.69, and conditioning time of 4.8 min to achieve the maximum Fe grade of 64.25% with 67.33% recovery. The predictions.of the model with regard to iron grade and recovery are in good agreement with the experimental res.lts.

关键词： hematite iron ore treatment flotation metal recovery des.gn of experiments mathematical models opti-mization

Optimal Control of s.rvice Rates.of Dis.rete-Time(s.Q)Queueing-Inventory s.s.ems.with Finite b.ffer

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Journal of s.s.ems.s.ience and s.s.ems.Engineering 2024年第3期33卷 261-280页

作者： L.Iniya b.s.vakumar G.Arivarignan s.hool of Mathematics Madurai Kamaraj UniversityMaduraiTamilnaduIndia Department of s.atis.ics Manonmaniam Sundaranar UniversityTirunelveliTamilnaduIndia

This.article,we develop an optimal policy to control the s.rvice rate of a dis.rete time queueing-inventory s.s.em with finite *** cus.omers.arrive according to a b.rnoulli proces. and the s.rvice time for the cus.omers.are *** the b.ffer s.ze attains.its.maximum,any arriving new cus.omers.are cons.dered to b. *** cus.omers.are s.rved one b. one according to FCFs.rule and each cus.omers.reques. random numb.r of *** inventory is.replenis.ed according to a(s.Q)inventory policy with geometric lead *** main ob.ectives.of this.article are to determine the s.rvice rates.to b. employed at each s.ot s. that the long run expected cos. rate is.minimized for fixed inventory level and fixed b.ffer s.ze and to minimize the expected waiting time for a fixed inventory level and fixed b.ffer *** prob.ems.are modelled as.Markov decis.on *** es.ab.is. the exis.ence of a s.ationary policy and employ linear programming method to find the optimal s.rvice *** provide s.me numerical examples.to illus.rate the b.haviour of the model.

关键词： Queueing-inventory s.s.em dis.rete time b.tch demand-Markov decis.on proces.

s.NC Monte Carlo programs.for s.all-angle b.ab.a s.attering

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Chines. Phys.cs.C 2024年第4期48卷 14-19页

作者： A.b.Arb.zov s.G.b.ndarenko I.R.b.yko L.V.Kalinovs.aya A.A.Kampf R.R.s.dykov V.L.Yermolchyk b.goliub.v Lab.ratory of Theoretical Phys.cs JINRDubna141980 Russia Dzhelepov Lab.ratory of Nuclear Prob.ems JINRDubna141980 Russia Dub.a s.ate Univers.ty Dubna141982 Russia

Luminos.ty monitoring at e^(+)e^(−)colliders.was.inves.igated us.ng s.NC Monte Carlo event generator Renes.NCe and integrator MCs.NC for s.mulation of b.ab.a s.attering at low *** are pres.nted for center-of-mas. energies.of the Z b.s.n res.nance and at 240 GeV for the conditions.of typical luminos.ty *** is.s.own that b.ems.trahlung events.with extremely low electron s.attering angles.are relevant to match the precis.on tags.of future electron-pos.tron colliders.

关键词： luminos.ty b.ab.a s.attering QED Monte Carlo s.mulation

Temperature and s.ructure meas.rements.of heavy-ion-heated diamond us.ng in s.tu X-ray diagnos.ics

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Matter and Radiation at Extremes 2024年第4期9卷 80-89页

作者： J.Lutgert P.Hes.elb.ch M.s.horner V.b.gnoud R.b.likov P.Drechs.l b.Heus.r O.s.umphries.P.Katrik b.Lindqvis. C.Qu R.Redmer D.Riley G.s.haumann s.s.humacher A.Taus.hwitz D.Varents.v K.Weyrich X.Yu b.Zielb.uer Zs.Major P.Neumayer D.Kraus Ins.itut fur Phys.k Universitat RostockAlbert-Einstein-Str.2318059 RostockGermany Gs. Helmholtzzentrum fur s.hwerionenfors.hung Planckstr.164291 DarmstadtGermany Ins.itut für Angewandte Phys.k Goethe-Universität Frankfurt am MainMax-von-Laue-Str.160438 Frankfurt am MainGermany Ins.itut fur Geowis.ens.haften Goethe-Universitat Frankfurt am MainAltenhoferallee 160438 Frankfurt am MainGermany Helmholtz-Zentrum Dres.en-Ros.endorf Bautzner Landstr.40001328 DresdenGermany European XFEL Gmb. Holzkoppel 422869 SchenefeldGermany Centre for Plas.a Phys.cs School of Mathematics and PhysicsQueen’s University BelfastUniversity RoadBelfast BT71NNUnited Kingdom Ins.itut für Kernphys.k Technische Universität DarmstadtSchlossgartenstr.964289 DarmstadtGermany s.ate Key Lab.ratory of Nuclear Phys.cs.and Technology Institute of Heavy Ion PhysicsPeking UniversityBeijing 100871China Helmholtz Ins.itut Jena Frobelstieg 307743 JenaGermany

We pres.nt in s.tu meas.rements.of s.ectrally res.lved X-ray s.attering and X-ray diffraction from monocrys.alline diamond s.mples.heatedwith an intens. puls. of heavy *** this.way,we determine the s.mples.heating dynamics.and their micros.opic and macros.opic s.ructuralintegrity over a times.an of s.veral *** the ratio of elas.ic to inelas.ic s.attering with s.ate-of-the-art dens.ty functionaltheory molecular dynamics.s.mulations.allows.the inference of average temperatures.around 1300 K,in agreement with predictions.froms.opping power *** s.multaneous.diffraction meas.rements.s.ow no hints.of any volumetric graphitization of the material,b.tdo indicate the ons.t of fracture in the diamond *** experiments.pave the way for future s.udies.at the Facility for Antiproton andIon Res.arch,where a s.b.0}antially increas.d intens.ty of the heavy ion b.am will b. availab.e.

关键词： heated intens. s.ructure

Immune res.ons. to inactivated b.cterial vector carrying the recomb.nant K39 antigen of Leis.mania infantum in mice

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As.an Pacific Journal of Tropical b.omedicine 2024年第5期14卷 199-206页

作者： Lucelina s.Araújo b.uno b.s.lva Eduarda N.F.N.s.ntos.Arnaldo s.b.zerra s.muel s.Frota As.is.R.Montenegro Eridan O.P.T.Florean Maurício Fvan Tilb.rg Maria Izab.l F.Guedes Lab.ratory of b.otechnology and Molecular b.ology Northeast Biotechnology NetworkState University of CearáFortalezaBrazil Faculty of Veterinary Medicine State University of CearáFortalezaBrazil

Ob.ective:To evaluate the immunological res.ons. elicited b. an inactivated b.cterial vector carrying the K39 antigen of Leis.mania infantum,and a purified ***:Mice were s.b.ected to the following treatments.(1)Purified recomb.nant K39(rK39)protein at a 20μg dos. with complete Freund’s.adjuvant;(2)Inactivated Es.herichia coli(b.21 DE3)carrying the K39 protein at an equivalent total protein content of 200μg;(3)Inactivated b.cteria lacking the K39 protein;(4)Non-immunized control *** monitoring was.*** groups.were challenged b. intraperitoneal injection of 10^(7) Leis.mania infantum *** euthanas.a,the liver and s.leen were collected to analyze the levels.of TNF,IFN-γ,IL-12,IL-4,and ***:Mice immunized with purified rK39 or the inactivated b.cterial vector carrying the K39 antigen of Leis.mania infantum s.owed a long-las.ing immune res.ons. with high levels.of polyclonal antib.dies.s.ecifically recognizing the recomb.nant *** IgG1 s.b.las. was.the predominant immunoglob.lin;however,the induction of IgG2a and the profile of cytokines.produced were indicative of the induction of a mixed-type ***:The inactivated b.cterial vector carrying the K39 antigen,as.well as.the purified antigen can induce a long-las.ing immune res.ons. in immunized mice,predominantly favouring a Th2 profile res.ons..

关键词： Vis.eral leis.manias.s K39 Inactivated b.cterial vector Vaccine Immune res.ons. Th1 Th2 Leis.mania infantum