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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

A case of post traumati. mi.ral chordae rupture mi.i.ki.g acute respi.atory di.tress syndrome

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World Journal of Emergency Medi.i.e 2024年第4期15卷 322-324页

作者： hülya Deni. Mi.i. Nalan Demi. Feri. Kasi.zade Cansu Yahşi i.tensi.e Care Department Ankara Bilkent City HospitalAnkara 06800Turkiye i.tensi.e Care Department University of Health Sciences Ankara Bilkent City HospitalAnkara 06800Turkiye Cardi.vascular Surgery Department Ankara Bilkent City HospitalAnkara 06800Turkiye Pulmonary Medi.i.e Department University of Health Sciences Ankara Bilkent City HospitalAnkara 06800Turkiye

Traumati. mi.ral chordae rupture i. a rare and known cause of acute mi.ral valve regurgi.ati.n and de novo heart *** pathologi.s i. a trauma pati.nt may mask the fi.di.gs of de novo heart fai.ure due to mi.ral chordae *** pati.nts may also have other potenti.l pre-di.gnoses that could explai. symptoms related to heart fai.ure,such as tachycardi.,ci.culatory shock,and acute *** possi.i.i.y of traumati. chordae tendi.ea rupture bei.g a preventable cause of mortali.y should be carefully evaluated.

关键词： rupture mi.ral acute

A hybri. Classi.i.ati.n and i.enti.i.ati.n of Pneumoni. Usi.g Afri.an Buffalo Opti.i.ati.n and CNN from Chest X-Ray i.ages

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Computer Modeli.g i. Engi.eeri.g & Sci.nces 2024年第3期138卷 2497-2517页

作者： Nasser Alalwan Ahmed i.Taloba Amr Abozei. Ahmed i.rahi. Alzahrani.Ali.h.Al-Bayatti Computer Sci.nce Department Community CollegeKing Saud UniversityRiyadh11437Saudi Arabia i.formati.n System Department Faculty of Computers and InformationAssiut UniversityAssiutEgypt Mathemati.s Department Faculty of ScienceAl-Azhar UniversityCairoEgypt Cyber Technology i.sti.ute(CTi. De Montfort UniversityLeicesterUK

An i.lness known as pneumoni. causes i.flammati.n i. the *** there i. so much i.formati.n avai.able fromvari.us X-ray i.ages,di.gnosi.g pneumoni. has typi.ally proven *** i.prove i.age quali.y and speed up the di.gnosi. of pneumoni.,numerous approaches have been *** date,several methods have been employed to i.enti.y *** Convoluti.nal Neural Network(CNN)has achi.ved outstandi.g success i. i.enti.yi.g and di.gnosi.g di.eases i. the fi.lds of medi.i.e and ***,these methods are complex,i.effi.i.nt,and i.preci.e to analyze a bi. number of *** thi. paper,a new hybri. method for the automati. classi.i.ati.n and i.enti.i.ati.n of Pneumoni. from chest X-ray i.ages i. *** proposed method(ABOCNN)uti.i.ed theAfri.an BuffaloOpti.i.ati.n(ABO)algori.hmto enhanceCNNperformance and *** Wei.med fi.ter i. employed for pre-processi.g to eli.i.ate unwanted noi.es from chest X-ray i.ages,followed by feature extracti.n usi.g the Grey Level Co-Occurrence Matri.(GLCM)*** features are then selected from the dataset usi.g the ABO algori.hm,and ulti.ately,hi.h-performance deep learni.g usi.g the CNN approach i. i.troduced for the classi.i.ati.n and i.enti.i.ati.n of *** results on vari.us datasets showed that,when contrasted to other approaches,the ABO-CNN outperforms them all for the classi.i.ati.n *** proposed method exhi.i.s superi.r values li.e 96.95%,88%,86%,and 86%for accuracy,preci.i.n,recall,and F1-score,respecti.ely.

关键词： Afri.an buffalo opti.i.ati.n convoluti.nal neural network pneumoni. X-ray

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

Exact soluti.ns for magnetohydrodynami. nanoflui.s flow and heat transfer over a permeable axi.ymmetri. radi.lly stretchi.g/shri.ki.g sheet

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Chi.ese Physi.s B 2024年第2期33卷 108-114页

作者： U.S.Mahabaleshwar G.P.Vani.ha L.M.Pérez Emad h.Aly i.Pop Department of Studi.s i. Mathemati.s Davangere UniversityShivagangothriDavangereIndia Departamento de F´ısi.a FACIUniversidad de Tarapac´aCasilla 7DAricaChile Department of Mathemati.s Faculty of EducationAin Shams UniversityRoxyCairoEgypt Department of Mathemati.s Babes-Bolyai University400084 Cluj-NapocaRomania

We report on the magnetohydrodynami. i.pact on the axi.ymmetri. flow of Al_(2)O_(3)/Cu nanoparti.les suspended i. h_(2)O past a stretched/shri.ked *** the use of parti.l di.ferenti.l equati.ns and the correspondi.g thermophysi.al characteri.ti.s of nanoparti.les,the physi.al flow process i. *** resultant nonli.ear system of parti.l di.ferenti.l equati.ns i. converted i.to a system of ordi.ary di.ferenti.l equati.ns usi.g the sui.able si.i.ari.y *** transformed di.ferenti.l equati.ns are solved *** of the magneti. parameter,soli. volume fracti.n and stretchi.g/shri.ki.g parameter on momentum and temperature di.tri.uti.n have been analyzed and i.terpreted *** ski. fri.ti.n and Nusselt number were also *** addi.i.n,exi.tence of dual soluti.n was deduced for the shri.ki.g sheet and uni.ue soluti.n for the stretchi.g ***,Al_(2)O_(3)/h_(2)O nanoflui. flow has better thermal conducti.i.y on compari.g wi.h Cu/h_(2)O ***,i. was found that the fi.st soluti.ns of the stream are stable and physi.ally reali.able,whereas those of the second ones are unstable.

关键词： magnetohydrodynami. nanoflui. stretchi.g/shri.ki.g sheet axi.ymmetri. flow analyti.al soluti.n sucti.n/i.jecti.n

Opti.i.i.g Grey Wolf Opti.i.ati.n: A Novel Agents’ Posi.i.ns Updati.g Techni.ue for Enhanced Effi.i.ncy and Performance

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Open Journal of Opti.i.ati.n 2024年第1期13卷 21-30页

作者： Mahmoud Khatab Mohamed El-Gamel Ahmed i. Saleh Asmaa h. Rabi. Atallah El-Shenawy Department of Mathemati.s and Engi.eeri.g Physi.s Faculty of Engineering Mansoura University Mansoura Egypt Department of Computers and Control Faculty of Engineering Mansoura University Mansoura Egypt Department of Mathemati.s Faculty of Science New Mansoura University Mansoura Egypt

Grey Wolf Opti.i.ati.n (GWO) i. a nature-i.spi.ed metaheuri.ti. algori.hm that has gai.ed populari.y for solvi.g opti.i.ati.n problems. i. GWO, the success of the algori.hm heavi.y reli.s on the effi.i.nt updati.g of the agents’ posi.i.ns relati.e to the leader wolves. i. thi. paper, we provi.e a bri.f overvi.w of the Grey Wolf Opti.i.ati.n techni.ue and i.s si.ni.i.ance i. solvi.g complex opti.i.ati.n problems. Bui.di.g upon the foundati.n of GWO, we i.troduce a novel techni.ue for updati.g agents’ posi.i.ns, whi.h ai.s to enhance the algori.hm’s effecti.eness and effi.i.ncy. To evaluate the performance of our proposed approach, we conduct comprehensi.e experi.ents and compare the results wi.h the ori.i.al Grey Wolf Opti.i.ati.n techni.ue. Our comparati.e analysi. demonstrates that the proposed techni.ue achi.ves superi.r opti.i.ati.n outcomes. These fi.di.gs underscore the potenti.l of our approach i. addressi.g opti.i.ati.n challenges effecti.ely and effi.i.ntly, maki.g i. a valuable contri.uti.n to the fi.ld of opti.i.ati.n algori.hms.

关键词： Grey Wolf Opti.i.ati.n (GWO) Metaheuri.ti. Algori.hm Opti.i.ati.n Problems Agents’ Posi.i.ns Leader Wolves Opti.al Fi.ness Values Opti.i.ati.n Challenges

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

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

Usi.g fracture-based conti.uum modeli.g of coupled geomechani.al-hydrologi.al processes for numeri.al si.ulati.n of hydrauli. fracturi.g

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Journal of Rock Mechani.s and Geotechni.al Engi.eeri.g 2024年第5期16卷 1582-1599页

作者： Goodluck i.Ofoegbu GNO Modeli.g Research LLC. San AntonioTX78253USA

Thi. paper descri.es numeri.al si.ulati.n of hydrauli. fracturi.g usi.g fracture-based conti.uum modeli.g(FBCM)of coupled geomechani.al-hydrologi.al processes to evaluate a techni.ue for hi.h-densi.y fracturi.g and fracture *** si.ulati.ns are i.novati.e because of modeli.g di.crete fractures expli.i.ly i. conti.uum analysi..A key advantage of FBCM i. that fracture i.i.i.ti.n and propagati.n are modeled expli.i.ly wi.hout changi.g the domai. gri.(*** re-meshi.g).Further,multi.le reali.ati.ns of a preexi.ti.g fracture di.tri.uti.n can be analyzed usi.g the same domai. *** si.ulated hydrauli. fracturi.g techni.ue consi.ts of pressuri.i.g multi.le wells si.ultaneously:i.i.i.lly wi.hout permeati.g flui.s i.to the rock,to seed fractures uni.ormly and at hi.h densi.y i. the wall rock of the wells;followed by flui. i.jecti.n to propagate the seeded fracture densi.y *** combi.es the ease of conti.uum modeli.g wi.h the potenti.l accuracy of modeli.g di.crete fractures and fracturi.g *** are modeled as pi.cewi.e planar based on i.tersecti.ns wi.h domai. elements;fracture geometry stored as conti.uum properti.s i. used to calculate parameters needed to model i.di.i.ual fractures;and rock behavi.r i. modeled through tensori.l aggregati.n of the behavi.r of di.crete fractures and unfractured *** are presented for previ.usly unfractured rock and for rock wi.h preexi.ti.g fractures of hori.ontal,shallow-di.pi.g,steeply di.pi.g,or verti.al *** of a si.gle-well model are used to determi.e the pattern and spaci.g for a multi.le-well *** results i.lustrate hi.h-densi.y fracturi.g and fracture cagi.g through si.ultaneous flui. i.jecti.n i. multi.le wells:for previ.usly unfractured rock or rock wi.h preexi.ti.g shallow-di.pi.g or hori.ontal fractures,and i. si.u verti.al compressi.e stress greater than *** preexi.ti.g fractures are steeply di.pi.g or verti.al,and consi.eri.g the same i. si.u

关键词： Di.crete fracture Fracture-based conti.uum modeli.g Fracture cagi.g hi.h-densi.y fracturi.g hydrauli. fracturi.g Preexi.ti.g fracture