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Journal of Bi.ni. Engi.eeri.g 2024年第4期21卷 2000-2033页

作者： abdelazi. i.Hammouri.Mohammed A.Awadallah Mali. ShBrai. Mohammed Azmi.Al-Betar Majdi.Besei.o Department of Computer Sci.nce Al-Balqa Applied UniversityAl-Salt19117Jordan Department of Sci.nti.i. Research and Graduate Studi.s University of Prince Mugrin42241MedinaSaudi Arabia Department of Computer Sci.nce Al-Aqsa UniversityGaza4051Palestine Arti.i.i.l i.telli.ence Research Center(Ai.C) Ajman UniversityAjmanUnited Arab Emirates Department of i.formati.n Technology Al-Huson University CollegeAl-Balqa Applied UniversityAl-HusonIrbid21110Jordan

Feature selecti.n(FS)plays a cruci.l role i. pre-processi.g machi.e learni.g datasets,as i. eli.i.ates redundant features to i.prove classi.i.ati.n accuracy and reduce computati.nal *** paper presents an enhanced approach to FS for software fault predi.ti.n,speci.i.ally by enhanci.g the bi.ary dwarf mongoose opti.i.ati.n(BDMO)algori.hm wi.h a crossover mechani.m and a modi.i.d posi.i.ni.g updati.g *** proposed approach,termed i.DMOcr,ai.s to forti.y explorati.n capabi.i.y,promote populati.n di.ersi.y,and lastly i.prove the wrapper-based FS process for software fault predi.ti.n *** gai.ed superb performance compared to other well-esteemed opti.i.ati.n methods across 17 benchmark *** ranked fi.st i. 11 out of 17 datasets i. terms of average classi.i.ati.n ***,i.DMOcr outperformed other methods i. terms of average fi.ness values and number of selected features across all *** fi.di.gs demonstrate the effecti.eness of i.DMOcr i. addressi.g FS problems i. software fault predi.ti.n,leadi.g to more accurate and effi.i.nt models.

关键词： Dwarf mongoose opti.i.ati.n algori.hm Opti.i.ati.n Feature selecti.n Classi.i.ati.n

Selecti.n of shaped charges parameters for produci.g alumi.um parti.les wi.h veloci.i.s i. the range of 2.5-16 km/s

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Defence Technology（防务技术） 2024年第8期38卷 126-135页

作者： Vladi.i. i.Kolpakov Sergey V.Fedorov Ekateri.a P.Vi.ogradova i.i.a A.Boloti.a Bauman Moscow State Techni.al Uni.ersi.y Moscow 105005Russia

Testi.g rocket and space technology objects i. ground condi.i.ns for resi.tance to the i.pact of meteoroi.s and fragments of space debri. can be carri.d out usi.g shaped charges. To substanti.te the desi.n parameters of shaped charges that ensure the formati.n of alumi.um parti.les i. a wi.e veloci.y range(from 2.5 to 16 km/s), numeri.al modeli.g of the formati.n process was carri.d out wi.hi. the framework of a two-di.ensi.nal axi.ymmetri. problem of conti.uum mechani.s usi.g three di.ferent computi.g codes to i.crease the reli.bi.i.y of the results. The calculati.ns consi.er shaped charges wi.h a di.meter of 20-100 mm wi.h alumi.um li.ers of vari.us shapes. i. i. shown that the formati.n of parti.les wi.h veloci.i.s close to the lower li.i. of the consi.ered range i. ensured by gently slopi.g segmental li.ers of degressi.e thi.kness. To form hi.her-veloci.y parti.les wi.h veloci.i.s over 5 km/s, i. i. proposed to use combi.ed li.ers, the jet-formi.g part of whi.h has the shape of a hemi.phere of constant thi.kness or the shape of a semi.elli.soi. or semi.superelli.soi. of rotati.n of degressi.e thi.kness.

关键词： Space debri. Meteori. i.pact Explosi.n Shaped charge Hi.h-veloci.y alumi.um element Segmental li.er Combi.ed li.er Numeri.al si.ulati.n

The current status and future development of hi.h-temperature conventi.nal superconducti.i.y

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Nati.nal Sci.nce Revi.w 2024年第07期 18-20页

作者： Mi.hai. i.Eremets Hi.h Pressure Chemi.try and Physi.s Group Max-Planck-Institut für Chemie

Thi. survey hi.hli.hts key advancements i. hi.h-temperature superconducti.i.y i. hydrogen-ri.h materi.ls, emphasi.i.g the robust evi.ence and reproduci.i.i.y of superconducti.i.y under challengi.g experi.ental condi.i.ns of megabar pressures. i. the near future, achi.vi.g room-temperature superconducti.i.y i. hi.hly probable, and the fi.ld i. expected to transi.i.n towards near-ambi.nt-pressure superconducti.i.y.

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Benefi.i.l use of mussel shell as a bi.addi.i.e for TPU green composi.es by the valori.ati.n of an aqueous waste

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Waste Di.posal and Sustai.able Energy 2024年第1期6卷 123-137页

作者： SedefŞi.manoğlu Yasi. Kanbur Carmen-Mi.aela Popescu Di.na Ki.dzera Ümi. Tayfun Department of Chemi.try Karabuk University78050KarabukTurkey Petru Poni.i.sti.ute of Macromolecular Chemi.try of the Romani.n Academy 700487IasiRomania Department of Chemi.al Engi.eeri.g Lviv Polytechnic National UniversityLviv79013Ukraine Department of Basi. Sci.nces Bartin University74110BartinTurkey

Sci.nti.i. studi.s have focused on envi.onmentally fri.ndly soluti.ns as effecti.e as the reuse of crop products owi.g to plasti.-waste problems i. recent *** i.sue i. the mai. dri.i.g force for upcomi.g academi. research attempts i. waste valori.ati.n-related ***,we i.tegrated an aqua-waste,mussel shell(MS),as a bi.addi.i.e form i.to green thermoplasti. polyurethane(TPU)green *** of the MS surface was performed to achi.ve strong adhesi.n between composi.e *** surface functi.nali.i.s of MS powders were evaluated vi. i.frared spectroscopy and scanni.g electron mi.roscopy(SEM)*** samples were prepared by melt-compoundi.g followed by i.jecti.n moldi.g *** was confi.med by morphologi.al analysi. that relati.ely better adhesi.n between the phases was achi.ved for composi.es i.volvi.g surface-modi.i.d MS compared to unmodi.i.d *** strength and Young’s modulus of surface-modi.i.d MS-fi.led composi.es were found to be hi.her than those of unmodi.i.d MS,whereas the elongati.n at break shi.ted to lower values wi.h MS *** shore hardness of TPU was remarkably i.proved after bei.g i.corporated wi.h si.ane-treated MS(AS-MS).Steari. aci.-treated MS(ST-MS)addi.i.ns resulted i. an enhancement i. the thermal stabi.i.y of the ***-mechani.al analysi. showed that the storage moduli.of composi.es were hi.her than those of unfi.led ***-MS addi.i.ns led to an i.crease i. the characteri.ti. glass transi.i.n temperature of *** flow i.dex(MFi.of neat TPU was hi.hly i.proved after MS loadi.g regardless of modi.i.ati.n *** to the wear test,surface modi.i.ati.n of MS di.played a posi.i.e effect on the wear resi.tance of *** the water absorpti.n data of the composi.es were evaluated,the TPU/AS-MS composi.e yi.lded the lowest water *** si.ane layer on MS i.clusi.n promoted water repellency of composi.es due to the hydrophobi.i.y of *** results of the bi.degradati.n

关键词： Aqua-waste Polyurethane Mussel shell Green composi.es Sustai.abi.i.y Waste valori.ati.n

Are school uni.orms associ.ted wi.h gender i.equali.i.s i. physi.al acti.i.y? A pooled analysi. of populati.n-level data from 135 countri.s/regi.ns

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Journal of Sport and Health Sci.nce 2024年第4期13卷 590-598页

作者： Mai.ead Ryan Lui.a i.C.Ri.ardo Ni.ole Nathan Ri.kka Hofmann Esther van Slui.s Medi.al Research Counci. Epi.emi.logy Uni. University of CambridgeCambridge CB20QQUK Faculty of Educati.n University of CambridgeCambridge CB28PQUK Hunter New England Populati.n Health WallsendNSW 2287Australia School of Medi.i.e and Publi. Health College of HealthMedicine and WellbeingUniversity of NewcastleCallaghanNSW 2308Australia Hunter Medi.al Research i.sti.ute New Lambton HeightsNSW 2305Australia Nati.nal Centre of i.plementati.n Sci.nce University of NewcastleCallaghanNSW 2308Australia

Purpose:i. i. ai.ed to assess whether school uni.orms are associ.ted wi.h populati.n-level gender i.equali.i.s i. physi.al acti.i.y,and whether associ.ti.ns di.fer by school level,country/regi.n i.come,and assessment ***:An ecologi.al study desi.n was *** collected data about global uni.orm practi.es usi.g an onli.e *** searched for country/regi.n-level esti.ates of school-aged youth meeti.g physi.al acti.i.y gui.eli.es from i.ternati.nal survei.lance *** selecti.n was conducted i. dupli.ate usi.g a systemati. process,and a random sample of all data was checked to ensure extracti.n and pooli.g processes were *** calculated absolute and relati.e gender i.equali.i.s i. physi.al acti.i.y for each *** regressi.n exami.ed associ.ti.ns between country/regi.n-level uni.orm practi.es(bi.ary yes/no exposure vari.ble) and country/regi.n-level gender i.equali.i.s i. physi.al acti.i.y gui.eli.e compli.nce(absolute and relati.e i.equali.i.s).We i.vesti.ated moderati.n by school level,strati.i.d analyses by i.come group,and repeated pri.ary analyses usi.g devi.e-measured ***:Pooli.g data from 135 countri.s/regi.ns(n=1,089,852),we found no associ.ti.n between populati.n-level uni.orm practi.es and gender i.equali.i.s i. physi.al acti.i.y across all ages(absolute:β=-0.2;95% confi.ence i.terval(95%Ci.:-1.7 to 1.3,p=0.74;relati.e:β=0.1;95%Ci.-0.1 to 0.2,p=0.51).Subgroup analysi. suggested a posi.i.e associ.ti.n i. pri.ary school setti.gs(absolute:β=4.3;95%Ci.-0.0 to 8.6,p=0.05).Among hi.h-i.come countri.s,absolute i.equali.i.s were si.ni.i.antly greater i. countri.s/regi.ns wi.h uni.orm practi.es(N=37) compared to those wi.hout(N=48)(9.1(SD=3.6) vs.7.8 percentage poi.ts(SD=4.3)).Repeati.g analyses usi.g devi.e-measured data(n=32,130;N=24) di. not alter our pri.ary *** i.i.i.l descri.ti.e stati.ti.s,we found that i. countri.s/regi.ns where a maj ori.y of schools(>50%) reportedly use uni.orms,there was lower compli

关键词： School poli.y Clothi.g Chi.d Adolescent Accelerometer

Slope stabi.i.y of reclai.ed coal mi.es through a new water fi.li.g i.dex

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Journal of Rock Mechani.s and Geotechni.al Engi.eeri.g 2024年第3期16卷 828-839页

作者： Antoni.s Mi.routsi.os Alexandros i.Theochari. Ni.olaos C.Koukouzas i.anni. E.Zevgoli. Chemi.al Process&Energy Resources i.sti.ute Centre for Research&Technology HellasAthensGreece School of Mi.i.g and Metallurgi.al Engi.eeri.g National Technical University of AthensAthensGreece

A common reclamati.n practi.e for closed coal surface mi.es i. fi.li.g them wi.h water to form pi. *** creati.n and sustai.abi.i.y of these lakes are si.ni.i.antly affected by the stabi.i.y of the correspondi.g *** present study provi.es a general framework for analyzi.g the water fi.li.g’s effect on slope stabi.i.y based on a new water fi.li.g i.dex,whi.h can i.di.ectly consi.er the factors affecti.g the process and effi.i.ntly quanti.y the fi.li.g speed’s *** assumpti.ns of the proposed approach are thoroughly di.cussed,and the range of the water fi.li.g i.dex i. ***,the safety factor i. calculated usi.g the fi.i.e element method wi.h the shear strength reducti.n techni.ue duri.g the fi.li.g process for vari.us condi.i.ns(soi. properti.s,slope geometry,hydrauli. condi.i.ns,and water fi.li.g speed).Results are presented as normali.ed stabi.i.y charts for practi.al *** the water fi.li.g,the stabi.i.y gradually decreases unti. the reservoi. reaches a cri.i.al level of 10%e40%of the total hei.ht;i. then i.creases to even more stable condi.i.ns than the i.i.i.l ***,the present analysi. allows for the preli.i.ary stabi.i.y evaluati.n of a coal mi.e duri.g the formati.n of a pi. lake and the appropri.te quanti.i.ati.n of the water fi.li.g’s effect.

关键词： Post-coal era Open-pi. floodi.g Stabi.i.y charts Cri.i.al level

Pati.nt-centered care i. di.betes care-concepts,relati.nshi.s and practi.e

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World Journal of Di.betes 2024年第7期15卷 1417-1429页

作者： Tsung-Tai.Chen Wei.Chi. Su Mei.i.Li. Department of Publi. Health College of MedicineFu Jen Catholic UniversityNew Taipei 24205Taiwan Department of Gastroenterology Taipei Tzu-Chi HospitalNew Taipei 23142Taiwan Department of Pedi.tri. Endocri.ology Mackay Children's HospitalTaipei 10449Taiwan

We sti.l do not have comprehensi.e knowledge of whi.h framework of pati.ntcentered care(PCC)i. appropri.te for di.betes care,whi.h elements of PCC are evi.ence-based,and the mechani.m by whi.h PCC elements are associ.ted wi.h outcomes through *** thi. revi.w,we elaborate on these *** found that for di.betes care,PCC elements such as autonomy support(pati.nt i.di.i.uali.y),cooperati.n and collaborati.n(system-level approach),communi.ati.n and educati.n(behavi.r change techni.ues),emoti.nal support(bi.psychosoci.l approach),and fami.y/other i.volvement and support are cri.i.ally *** of these factors are di.ectly associ.ted wi.h di.ferent pati.nt outcomes and i.di.ectly associ.ted wi.h outcomes through pati.nt *** present the practi.al i.pli.ati.ns of these PCC elements.

关键词： Di.betes melli.us Pati.nt-centered care Autonomy support Pati.nt acti.ati.n Pati.nt adherence

Constrai.ed re-cali.rati.n of two-equati.n Reynolds-averaged Navi.r–Stokes models

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Theoreti.al & Appli.d Mechani.s Letters 2024年第2期14卷 82-89页

作者： Yuanwei.Bi. Xi.ohan Hu Ji.qi.Li.Samuel J.Grauer Xi.ng i.A.Yang Department of Mechani.al Engi.eeri.g Pennsylvania State UniversityUniversity ParkPA 16802USA State Key Laboratory for Turbulence and Complex Systems Peking UniversityBeijing 100871China College of Engi.eeri.g Peking UniversityBeijing 100871China

Machi.e-learned augmentati.ns to turbulence models can be advantageous for flows wi.hi. the trai.i.g dataset but can often cause harm *** lack of generali.abi.i.y ari.es because the constants(as well as the functi.ns)i. a Reynolds-averaged Navi.r–Stokes(RANS)model are coupled,and un-constrai.ed re-cali.rati.n of these constants(and functi.ns)can di.rupt the cali.rati.ns of the baseli.e model,the preservati.n of whi.h i. cri.i.al to the model's *** safeguard the behavi.rs of the baseli.e model beyond the trai.i.g dataset,machi.e learni.g must be constrai.ed such that basi. cali.rati.ns li.e the law of the wall are kept *** letter ai.s to i.enti.y such constrai.ts i. two-equati.n RANS models so that future machi.e learni.g work can be performed wi.hout vi.lati.g these *** demonstrate that the i.enti.i.d constrai.ts are not ***,they help preserve the generali.abi.i.y of the baseli.e model.

关键词： Machi.e learni.g Turbulence modeli.g Reynolds-averaged Navi.r-Stokes

AN OPTi.AL CONTROL PROBLEM FOR A LOTKA-VOLTERRA COMPETi.i.N MODEL Wi.H CHEMO-REPULSi.N

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Acta Mathemati.a Sci.nti. 2024年第2期44卷 721-751页

作者： Di.na i.HERNÁNDEZ Di.go A.RUEDA-GOMEZ Élder J.Vi.LAMi.AR-ROA Uni.ersi.ad i.dustri.l de Santander Escuela de MatemáticasA.A.678BucaramangaColombia

i. thi. paper we study a bi.i.ear opti.al control problem for a di.fusi.e Lotka-Volterra competi.i.n model wi.h chemo-repulsi.n i. a bounded domai. of ℝ^(ℕ),N=2,*** model descri.es the competi.i.n of two speci.s i. whi.h one of them avoi. encounters wi.h ri.als through a chemo-repulsi.n *** prove the exi.tence and uni.ueness of weak-strong soluti.ns,and then we analyze the exi.tence of a global opti.al soluti.n for a related bi.i.ear opti.al control problem,where the control i. acti.g on the chemi.al ***,we deri.e fi.st-order opti.ali.y condi.i.ns for local opti.al soluti.ns usi.g the Lagrange multi.li.rs ***,we propose a di.crete approxi.ati.n scheme of the opti.ali.y system based on the gradi.nt method,whi.h i. vali.ated wi.h some computati.nal experi.ents.

关键词： Lotka-Volterra chemo-repulsi.n opti.al control opti.ali.y condi.i.ns

Effects of synthesi. parameters on the performance of crossli.ked Co-polymers wi.h clays for conformance control

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Petroleum Research 2024年第1期9卷 98-108页

作者： A.A.Roslan N.A.A.Azi. N.F.A.Deraman i.Dzulkarnai. Petroleum Engi.eeri.g Department Centre of Research Enhanced Oil Recovery(COREOR)Universiti Teknologi PETRONASSeri IskandarPerakMalaysia Chemi.al Engi.eeri.g Department Centre of Research Enhanced Oil Recovery(COREOR)Universiti Teknologi PETRONASSeri IskandarPerakMalaysia

Conformance control or water shut-off i. a techni.ue used to i.prove oi. *** conformance control,polymers block hi.h permeabi.i.y water areas and redi.tri.ute water dri.e toward unswept oi. *** thi. study,co-polymers(denoted ATP-PGV/AM-co-AMPS)were synthesi.ed usi.g acrylami.e(AM)and 2-acrylami.e-2-methylpropane sulfoni. aci.(AMPS)as the monomers,polyethylene glycol(PEG)-200 and methylenebi.acrylami.e(MBA)as the crossli.kers,attapulgi.e(ATP)and bentoni.e(PGV)as the clay types,and ammoni.m persulfate(APS)as the i.i.i.tor,i. addi.i.n to paraffi. oi. and *** were synthesi.ed usi.g i.verse emulsi.n polymeri.ati.n wi.h di.ferent concentrati.ns of monomers,crossli.kers,and clays,and they were characteri.ed usi.g Fouri.r-transform i.frared(FTi.)spectroscopy and scanni.g electron mi.roscopy(SEM)wi.h energy di.persi.e X-ray spectroscopy(EDX).FTi. spectra of the samples confi.med the exi.tence of sulfonate and hydroxyl groups,whi.h are i.portant for polymer ***-EDX i.ages i.di.ated that the morphology and elemental composi.i.n were di.ferent before and after swelli.g,confi.mi.g the occurrence of ***,samples were placed i. sodi.m chlori.e soluti.n(20,000 ppm)for 7 days to evaluate swelli.g at both room temperature and 90°*** analysi.(TGA)and di.ferenti.l scanni.g calori.etry(DSC)were used to determi.e the thermal characteri.ti.s of the ***,rheologi.al measurements were used to assess the deformati.n and rheologi.al behavi.r of the *** results showed that after 1 day,good swelli.g wi.hout loss of mechani.al strength was achi.ved wi.h the composi.e synthesi.ed usi.g 10%AM,15%AMPS,6%PGV,and 10%ATP.

关键词： Polymer Clay Water shut-off Conformance Swelli.g