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Experi.ental Study of Li.ui. Metal Flow for the Development of a Contact-Less Control Techni.ue

Flui. Dynami.s and Materi.ls Processi.g 2024年第7期20卷 1553-1564页

作者： Poluyanov A. Kolesni.henko i. Laboratory of Technologi.al Hydrodynami.s Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Science (ICMM UB RAS) Perm 614018 Russian Federation

The arti.le presents an experi.ental study on the flow of an eutecti. galli.m alloy i. a cyli.dri.al cell, whi.h i. placed i. an alternati.g magneti. fi.ld. The magneti. fi.ld i. generated by a coi. connected to an alternati.g current source. The coi. i. located at a fi.ed hei.ht i. such a way that i.s plane i. perpendi.ular to the gravi.y vector, whi.h i. turn i. parallel to the axi. of the cyli.der. The posi.i.n of the cyli.der can vary i. hei.ht wi.h respect to the coi.. The forced flow of the consi.ered electri.ally conducti.e li.ui. i. generated due to the acti.n of the locali.ed electromagneti. force. i. i. assumed that under the acti.n of the alternati.g magneti. fi.ld, the li.ui. i. heated uni.ormly, and the resulti.g heat i. qui.kly absorbed by the forced flow, so that li.ui. free convecti.n can be neglected. The experi.ent i. carri.d out usi.g an ultrasoni. Doppler anemometer. One transducer i. i.stalled i. the axi.lly located cyli.der slui.e and the other transducer i. placed i. the near-wall regi.n. Accordi.g to the results, a veloci.y profi.e, correspondi.g to a two-tori.flow pattern can be hardly obtai.ed i. the low frequency range of the power supply. However, thi. i. possi.le i. the hi.h frequency range. The average veloci.y profi.es depend essenti.lly on the locati.n of the coi. relati.e to the cell. The spectral analysi. of veloci.y si.nals shows that the ampli.ude of the veloci.y pulsati.ns i. comparable to the average value of the flow veloci.y. Such experi.ental results and thei. veri.i.ati.n through compari.on wi.h numeri.al calculati.ns are i.tended to support the development of new methods for reduci.g the i.tensi.y of vortex flows duri.g the electromagneti. separati.n of i.puri.i.s through an electromagneti. i.ducti.n mechani.m (able to produce an electromoti.e force that di.places parti.les). © (2024), (Tech Sci.nce Press). All Ri.hts Reserved.

关键词： azi.uthal pi.ch electri.ally conducti.e medi.m experi.ent i. li.ui. metal magnetohydrodynami.s Ultrasoni. doppler veloci.eter

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Severe aspi.ati.n pneumoni. i. the elderly

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Journal of i.tensi.e Medi.i.e 2024年第3期4卷 307-317页

作者： Sebasti.n Ocrospoma Marcos i.Restrepo Di.i.i.n of Pulmonary Di.eases&Cri.i.al Care Medi.i.e University of Texas Health San AntonioSan AntonioTXUSA Secti.n of Pulmonary&Cri.i.al Care Medi.i.e South Texas Veterans Health Care SystemSan AntonioTXUSA

The global populati.n i. agi.g at an unprecedented rate,resulti.g i. a growi.g and vulnerable elderly populati.n i. need of effi.i.nt comprehensi.e healthcare servi.es that i.clude long-term care and ski.led nursi.g *** thi. context,severe aspi.ati.n pneumoni.,a condi.i.n that carri.s substanti.l morbi.i.y,mortali.y,and fi.anci.l burden,especi.lly among elderly pati.nts requi.i.g admi.si.n to the i.tensi.e care uni.,has attracted greater *** pneumoni. i. defi.ed as a pulmonary i.fecti.n related to aspi.ati.n or dysphagi. i. *** epi.odes of coughi.g on food or li.ui. i.take,a hi.tory of relevant underlyi.g condi.i.ns,abnormali.i.s on vi.eofluoroscopy or water swallowi.g,and gravi.y-dependent shadow di.tri.uti.n on chest i.agi.g are among the clues that suggest *** wi.h aspi.ati.n pneumoni. tend to be elderly,frai.,and sufferi.g from more comorbi.i.i.s than those wi.hout thi. ***,we comprehensi.ely address the epi.emi.logy,cli.i.al characteri.ti.s,di.gnosi.,treatment,preventi.n,and prognosi. of severe aspi.ati.n communi.y-acqui.ed pneumoni. i. the elderly to opti.i.e care of thi. hi.h-ri.k demographi.,enhance outcomes,and mi.i.i.e the healthcare costs associ.ted wi.h thi. *** preventi.e measures and effecti.e management strategi.s i. vi.al i. ensuri.g the well-bei.g of our agi.g populati.n.

关键词： Aspi.ati.n pneumoni. Aged Cri.i.al i.lness Swallowi.g di.orders Frai.ty Anti.acteri.l agents

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Current Methods of Human and Ani.al Brucellosi. Di.gnosti.s

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Advances i. i.fecti.us Di.eases 2013年第3期3卷 177-184页

作者： Ekateri.a A. Smi.nova Andrey V. Vasi. Nurlan T. Sandybaev Sergey A. Klotchenko Mari.a A. Plotni.ova Olga V. Chervyakova Abylai.R. Sansyzbay oleg i. kiselev Laboratory of Structural and Functi.nal Proteomi.s Research Institute of Influenza of the Ministry of Health of the Russian Federation St. Petersburg Russia

Brucellosi. i. an urgent i.fecti.us di.ease of li.estock and wi.d ani.als and the commonest human zoonosi.. Di.gnosi. of brucellosi. i. rather compli.ated and i. has to be obli.atori.y confi.med by laboratory testi.g. Di.ect bacteri.logi.al and molecular methods and i.di.ect serologi.al tests are used for brucellosi. di.gnosti.s. The choi.e of the di.gnosti. tools depends on the overall epi.emi.logi.al si.uati.n i. the regi.n and the objecti.es of the study: vali.ati.n of the di.gnosi., screeni.g (moni.ori.g), cross-secti.nal studi.s or confi.mati.n of brucellosi.-free status of the regi.n. The revi.w descri.es current bacteri.logi.al, serologi.al and molecular methods, routi.ely used for the di.gnosi. of brucellosi. i. humans and ani.als. The perspecti.es of brucellosi. di.gnosti.s are also di.cussed.

关键词： Brucellosi. Di.gnosti.s Bacteri.logy Polymerase Chai. Reacti.n Serology

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Effect of Ta2O5 nanoparti.les on bi.acti.i.y, composi.i.n, structure, i. vi.ro and i. vi.o behavi.r of PEO coati.gs on Mg-alloy

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JOURNAL OF MAGNESi.M AND ALLOYS 2024年第6期12卷 2360-2379页

作者： Mashtalyar, D. V. i.shi.etski., i. M. Kashepa, V. V. Nadarai., K. V. Pi.tkova, M. A. Pleshkova, A. i. Fomenko, K. A. Usti.ov, A. Yu. Si.ebryukhov, S. L. Gnedenkov, S. V. Russi.n Acad Sci Inst Chem Far Eastern Branch Vladivostok 690022 Russia Far Eastern Fed Uni. Vladivostok 690950 Russia Reg Cli. Dermatovenerol Di.pensary Vladivostok 690033 Russia

The present study i.vesti.ates the physi.al and chemi.al characteri.ti.s, behavi.r i. vi.ro and i. vi.o , and bi.compati.i.i.y of coati.gs contai.i.g Ta2 O5 , whi.h are obtai.ed by plasma electrolyti. oxi.ati.n (PEO) on MA8 magnesi.m alloy. The obtai.ed coati.gs demonstrate i. vi.o bi.compati.i.i.y and i. vi.ro bi.acti.i.y. Compared to the base PEO coati.g, the layers contai.i.g Ta2 O5 faci.i.ate the development of apati.e i. si.ulated body flui., suggesti.g that the i.clusi.n of nanoparti.les i.proves bi.acti.i.y of the coati.gs. i. was found that i.corporati.n of Ta2 O5 nanoparti.les i.creases roughness and porosi.y of the formed layers by i.creasi.g parti.le concentrati.n i. electrolytes for the PEO process contri.uti.g to suffi.i.nt soft ti.sue i.growth i. vi.o . Based on i. vi.o studi.s, these coati.gs also provi.e favorable ti.sue response and mi.i.al i.flammatory reacti.n i. compari.on wi.h the bare magnesi.m alloy due to protecti.n of li.i.g ti.sues from deleteri.us corrosi.n events of magnesi.m i.plant such as local alkali.ati.n and i.tense hydrogen evoluti.n. The results obtai.ed i. the present study concluded bi.compati.i.i.y, ti.sue i.tegrati.n of the PEO coati.gs contai.i.g Ta2 O5 nanoparti.les maki.g them a promi.i.g protecti.e layer for bi.degradable magnesi.m i.plants. (c) 2024 Chongqi.g Uni.ersi.y. Publi.hi.g servi.es provi.ed by Elsevi.r B.V. on behalf of KeAi.Communi.ati.ns Co. Ltd. Thi. i. an open access arti.le under the CC BY-NC-ND li.ense ( http://***/li.enses/by-nc-nd/4.0/ ) Peer revi.w under responsi.i.i.y of Chongqi.g Uni.ersi.y

关键词： Plasma electrolyti. oxi.ati.n Bi.acti.e coati.gs Tantalum pentoxi.e Si.ulated body flui. (SBF) Apati.e formati.n Hi.tology. AMORPHOUS CALCi.M-PHOSPHATE APATi.E FORMATi.N MAGNESi.M ALLOY TANTALUM METAL BONE i.PLANTS OXi.E-Fi.MS THi.-Fi.MS HYDROXYAPATi.E Bi.MATERi.LS DEGRADATi.N

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Understandi.g the Theory of Karp, Mi.ler and Wi.ograd

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Journal of Appli.d Mathemati.s and Physi.s 2024年第4期12卷 1203-1236页

作者： Athanasi.s i. Margari. Department of Di.i.al Systems Gaiopolis Campus University of Thessaly Larissa Greece

The objecti.e of thi. tutori.l i. to present the fundamental theory of Karp, Mi.ler and Wi.ograd, whose semi.al paper lai. the foundati.ns regardi.g the systemati. descri.ti.n of the organi.ati.n of computati.ns i. systems of uni.orm recurrent equati.ns by means of graph structures, vi. the defi.i.i.n of computabi.i.y condi.i.ns and techni.ues for the constructi.n of one-di.ensi.nal and multi.di.ensi.nal scheduli.g functi.ns. Besi.es the descri.ti.n of thi. theory, the paper presents i.provements and revi.i.ns made by other authors and furthermore, poi.ts out the di.ferences regardi.g the condi.i.ns of causali.y and dependency between the general case of systems of recurrent equati.ns and the speci.l case of multi.le nested loops.

关键词： Computabi.i.y Scheduli.g Computati.ns Recurrent Equati.ns

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The Si.k roads: phylogeography of Central Asi.n di.e snakes (Serpentes: Natri.i.ae) shaped by ri.ers i. deserts and mountai. valleys

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Current Zoology 2024年第2期70卷 150-162页

作者： Dani.l Jablonski.Konrad Mebert Rafaqat Masroor Evgeni. Si.onov oleg Kukushki. Ti.ur Abduraupov Sylvi. Hofmann Department of Zoology Comenius University in BratislavaBratislavaSlovakia Global Bi.logy BirrSwitzerland Paki.tan Museum of Natural Hi.tory ShakarparianIslamabadPakistan Severtsov i.sti.ute of Ecology and Evoluti.n Russian Academy of SciencesMoscowRussia T.i.Vyazemski.Karadag Sci.nti.i. Stati.n-Nature Reserve—Branch of A.0.Kovalevsky i.sti.ute of Bi.logy of the Southern Seas TheodosiaCrimea Zoologi.al i.sti.ute of the RAS Saint PetersbourgRussia i.sti.ute of Zoology Academy of Sciences of the Republic of UzbekistanYunusabadTashkentUzbekistan Museum Koeni. Bonn LIBLeibniz Institute for the Analysis of Biodiversity ChangeBonnGermany UFZ-Helmholtz Centre for Envi.onmental Research Department of Conservation BiologyPermoserstrasse 1504318 LeipzigGermany

i.fluenced by rapi. changes i. cli.ate and landscape features si.ce the Mi.cene,wi.ely di.tri.uted speci.s provi.e sui.able models to study the envi.onmental i.pact on thei. evoluti.n and current geneti. *** di.e snake Natri. tessellata,wi.ely di.tri.uted i. the Western Palearcti. i. one such *** ai.ed to resolve a detai.ed phylogeography of *** wi.h a focus on the Central Asi.n clade wi.h 4 and the Anatoli. clade wi.h 3 mi.ochondri.l li.eages,trace thei. ori.i.,and correlate the envi.onmental changes that affected thei. di.tri.uti.n through *** expected ti.e of di.ergence of both clades began at 3.7 Mya i. the Pli.cene,reachi.g li.eage di.ferenti.ti.n approxi.ately 1 mi.li.n years *** geneti. di.ersi.y i. both clades i. ri.h,suggesti.g di.ferent ancestral areas,glaci.l refugi.,demographi. changes,and coloni.ati.n *** Caspi.n li.eage i. the most wi.espread li.eage i. Central Asi.,di.tri.uted around the Caspi.n Sea and reachi.g the foothi.ls of the Hi.du Kush Mountai.s i. Afghani.tan,and Eastern European lowlands i. the *** di.tri.uti.n i. li.i.ed by deserts,moun-tai.s,and cold steppe ***,Kazakhstan and Uzbeki.tan li.eages followed the Amu Darya and the Syr Darya water systems i. Central Asi.,wi.h ranges deli.i.ed by the large Kyzylkum and Karakum *** the western si.e,there are several li.eages wi.hi. the Anatoli. clade that converged i. the central part of the peni.sula wi.h 2 bei.g endemi. to Western *** di.tri.uti.n of both mai. clades was affected by expansi.n from thei. Plei.tocene glaci.l refugi. around the Caspi.n Sea and i. the valleys of Central Asi. as well as by envi.onmental changes,mostly through ari.i.i.ati.n.

关键词： bi.geography coloni.ati.n Eurasi. geneti. di.ersi.y mi.ochondri.l DNA Paratethys refugi. water snakes.

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Evoluti.n of Vi.al Load i. Pati.nts i.fected wi.h Hi.-1 at Poi.t G Uni.ersi.y Hospi.al

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Open Journal of Medi.al Mi.robi.logy 2024年第1期14卷 66-76页

作者： A. Mai.a D. Kone D. M. Couli.aly Ag M. Barai.a A. Traore S. S. Di.ki.e i. i. Mai.a i. Konate A. i. Mai.a Faculty of Medi.i.e and Odontostomatology of Bamako (FMOS) University of Science of Technical and Technology De Bamako Bamako Mali Laboratory of Medi.al Bi.logy and Hospi.al Hygi.ne of Poi.t-G Uni.ersi.y Hospi.al Bamako Mali Faculty of Pharmacy of Bamako (FaPh) University of Science of Technical and Technology De Bamako Bamako Mali Laboratory of the Luxembourg Mother-Chi.d Hospi.al Bamako Mali Nati.nal i.sti.ute of Publi. Health Bamako Mali Nati.nal i.sti.ute for Trai.i.g i. Health Sci.nces Bamako Mali Laboratory of the Kati.Uni.ersi.y Hospi.al Center Bamako Mali i.fecti.us and Tropi.al Di.eases Department of Poi.t-G Uni.ersi.y Hospi.al Bamako Mali Laboratory of CHU Gabri.l Touré Bamako Mali

i.troducti.n: Hi., the human i.munodefi.i.ncy vi.us, i. the eti.logi.al agent of acqui.ed i.munodefi.i.ncy syndrome (Ai.S). The ai. of thi. study was to assess the evoluti.n of the vi.al load i. pati.nts under treatment. Methodology: Thi. was a study carri.d out from July 2017 to June 2022 at the Poi.t G Uni.ersi.y Hospi.al laboratory. The determi.ati.n of the vi.al load of pati.nts was carri.d out by PCR on the ABOTT M2000sp/rt platform. Results: A total of 129 pati.nts i.fected wi.h Hi.-1, aged 19 to 72 years wi.h a mean age of 40.05 years ± 10.71;all on anti.etrovi.al chemotherapy. The female gender predomi.ated among our pati.nts. The most common treatment regi.en was 2i.Ti.+ 1i.NTi.wi.h 72.9% followed by 2i.Ti.+ 1i.i.wi.h 13.2%. As for the combi.ati.ns of molecules, the combi.ati.n TDF + 3TC + EFV and TDF + 3TC + DTG predomi.ated, respecti.ely 65.1% and 13.2%. 89.9% of our pati.nts had undetectable vi.emi. after 12 months of treatment (p i.h an average vi.al load whi.h had evolved from 681315.65 copi.s/ml ± 1616908.484 to M0 at 5742.36 copi.s /ml ± 35756.883 at M12 (p Conclusi.n: Generally speaki.g, anti.etrovi.al treatment had contri.uted to controlli.g vi.al loads, however the therapeuti. combi.ati.n TDF + 3TC + DTG had made i. possi.le to obtai. more pati.nts wi.h undetectable vi.emi. i.stead.

关键词： Hi.-1 Treatment Vi.al Load Poi.t G Uni.ersi.y Hospi.al

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Change i. Grai.-Si.e Composi.i.n of Li.ni.e under Cycli. Freezi.g-Thawi.g and Wetti.g-Dryi.g

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Natural Resources 2024年第1期15卷 17-27页

作者： Natali. S. Batugi.a Vladi.lav i. Fedorov Chersky i.sti.ute of Mi.i.g of the North Si.eri.n Branch Russi.n Academy of Sci.nces Yakutsk Russia

The paper presents the change i. grai.-si.e composi.i.n of li.ni.e under cycli. freezi.g-thawi.g (FTC) and wetti.g-dryi.g (WDC). The arti.le shows that i. the spri.g and autumn peri.ds the li.ni.es can be subjected to repeated freezi.g-thawi.g and wetti.g-dryi.g, whi.h determi.es the possi.i.i.y of changi.g thei. grai.-si.e composi.i.n and structure. Experi.ental studi.s i. laboratory condi.i.ns on the i.fluence of cycli. freezi.g-thawi.g (FTC) and wetti.g-dryi.g (WDC) on the quali.y i.di.ators of li.ni.es have been carri.d out, thei. granulometri. (fracti.nal) composi.i.n has been studi.d. Freezi.g-thawi.g cycle condi.i.ns are as follows (FTC): mi.i.um exposure temperature: -20°C;maxi.um: +5°C;relati.e humi.i.y: 30%;number of processi.g cycles: 3. Wetti.g-dryi.g cycles are as follows (WDC): dryi.g temperatures are +20, +40, +60, +80°C, dryi.g ti.e 90 mi.utes, the coals are further subjected to rai. (soaki.g) for a peri.d of water saturati.n to humi.i.y of 30% - 40% and dry agai.. The number of wetti.g-dryi.g cycles i. 3 ti.es. The tests have revealed the destructi.e effects of FTC and WDC on the samples of lower metamorphi. grade coal, and the cycles of wet-dry lead to the much hi.her yi.ld of fi.e si.es (-6+0;-13+0 mm) than the cycles of freeze-thaw. Furthermore, i. i. found that the i.crease i. the yi.ld of fi.es depends on the heati.g temperature: coal di.i.tegrati.n proceeds more i.tensi.ely at a hi.her temperature of dryi.g.

关键词： Li.ni.e Freezi.g-Thawi.g Cycle Wetti.g-Dryi.g Cycle Grai. Si.e Composi.i.n Dust Coal Storage Loss Quali.y

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A Di.ensi.nal Reducti.n Approach Based on Essenti.l Constrai.ts i. Li.ear Programmi.g

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Ameri.an Journal of Operati.ns Research 2024年第1期14卷 1-31页

作者： Ei.i.i.i. Ni.olopoulou George S. Androulaki. Department of Mathemati.s University of Patras Patras Greece Department of Busi.ess Admi.i.trati.n University of Patras Patras Greece

Thi. paper presents a new di.ensi.n reducti.n strategy for medi.m and large-scale li.ear programmi.g problems. The proposed method uses a subset of the ori.i.al constrai.ts and combi.es two algori.hms: the wei.hted average and the cosi.e si.plex algori.hm. The fi.st approach i.enti.i.s bi.di.g constrai.ts by usi.g the wei.hted average of each constrai.t, whereas the second algori.hm i. based on the cosi.e si.i.ari.y between the vector of the objecti.e functi.n and the constrai.ts. These two approaches are complementary, and when used together, they locate the essenti.l subset of i.i.i.l constrai.ts requi.ed for solvi.g medi.m and large-scale li.ear programmi.g problems. After reduci.g the di.ensi.n of the li.ear programmi.g problem usi.g the subset of the essenti.l constrai.ts, the soluti.n method can be chosen from any sui.able method for li.ear programmi.g. The proposed approach was appli.d to a set of well-known benchmarks as well as more than 2000 random medi.m and large-scale li.ear programmi.g problems. The results are promi.i.g, i.di.ati.g that the new approach contri.utes to the reducti.n of both the si.e of the problems and the total number of i.erati.ns requi.ed. A tree-based classi.i.ati.n model also confi.med the need for combi.i.g the two approaches. A detai.ed numeri.al example, the general numeri.al results, and the stati.ti.al analysi. for the deci.i.n tree procedure are presented.

关键词： Li.ear Programmi.g Bi.di.g Constrai.ts Di.ensi.n Reducti.n Cosi.e Si.i.ari.y Deci.i.n Analysi. Deci.i.n Trees

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伯醇对镍基催化剂在转移氢化反应中的抑制作用研究

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Chi.ese Journal of Catalysi. 2024年第3期58卷 168-179页

作者： Ni.olay Nesterov Alexey Phi.i.pov Vera Pakharukova Evgeny Gerasi.ov Stani.lav Yakushki. oleg Martyanov 博列斯科夫催化研究所俄罗斯新西伯利亚

本文研究了在转移加氢条件下,不同类型醇作为氢供体对镍基催化剂在苯并呋喃加氢反应中的活性影响.结果表明,使用异丙醇作为氢供体时,苯并呋喃的加氢过程为底物先发生脱芳构化,然后再进行脱氧反应.然而,当使用伯醇如甲醇、乙醇和正丙醇... 详细信息

本文研究了在转移加氢条件下,不同类型醇作为氢供体对镍基催化剂在苯并呋喃加氢反应中的活性影响.结果表明,使用异丙醇作为氢供体时,苯并呋喃的加氢过程为底物先发生脱芳构化,然后再进行脱氧反应.然而,当使用伯醇如甲醇、乙醇和正丙醇作为氢供体时,会导致镍基催化剂的不可逆失活.针对这一现象,进一步研究了伯醇使镍基金属催化剂失活的机理.结果表明,在250°C条件下,催化剂与伯醇的相互作用会导致形成非活性的碳化物Ni.(3)C,并且镍金属颗粒在氧化铝载体表面会发生烧结和偏析.

关键词：苯并呋喃转移加氢超临界共沉淀 Ni.化剂醇

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