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i.pacts of central-Paci.i. El Ni.o and physi.al dri.ers on eastern Paci.i. bi.eye tuna

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Journal of Oceanology and Li.nology 2024年第3期42卷 972-987页

Bi.eye tuna Thunnus obesus i. an i.portant mi.ratory speci.s that forages deeply,and El Ni.o events hi.hly i.fluence i.s di.tri.uti.n i. the eastern Paci.i. *** sea surface temperature i. wi.ely recogni.ed as the mai. factor affecti.g bi.eye tuna(BET)di.tri.uti.n duri.g El Ni.o events,the roles of di.ferent types of El Ni.o and subsurface oceani. si.nals,such as ocean heat content and mi.ed layer depth,remai. *** conducted A spati.l-temporal analysi. to i.vesti.ate the relati.nshi. among BET di.tri.uti.n,El Ni.o events,and the underlyi.g oceani. si.nals to address thi. knowledge *** used monthly purse sei.e fi.heri.s data of BET i. the eastern tropi.al Paci.i. Ocean(ETPO)from 1994 to 2012 and extracted the central-Paci.i. El Ni.o(CPEN)i.di.es based on Ni.o 3 and Ni.o ***,we employed Explai.able Arti.i.i.l i.telli.ence(XAi.models to i.enti.y the mai. patterns and feature i.portance of the si. envi.onmental vari.bles and used i.formati.n flow analysi. to determi.e the causali.y between the s.lected factors and BET ***,we analyzed Argo datasets to calculate the verti.al,hori.ontal,and zonal mean temperature di.ferences duri.g CPEN and normal years to clari.y the oceani. thermodynami. structure di.ferences between the two types of *** fi.di.gs reveal that BET di.tri.uti.n duri.g the CPEN years i. mai.ly dri.en by advecti.n feedback of subsurface warmer thermal si.nals and verti.ally warmer habi.ats i. the CPEN domai. area,especi.lly i. hi.h-yi.ld fi.hi.g *** hi.h frequency of CPEN events wi.l li.ely lead to the westward shi.t of fi.heri.s centers.

关键词： bi.eye tuna central-Paci.i. El Ni.o(CPEN) ocean heat content Argo explai.able arti.i.i.l i.telli.ence(XAi. i.formati.n flow

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

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

Dynami. response of honeycomb-FGs shells subjected to the dynami. loadi.g usi.g non-polynomi.l hi.her-order i.A

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Defence Technology（防务技术） 2024年第7期37卷 149-161页

作者： Pham Bi.h le Trung-Thanh Tran Faculty of Mechani.al Engi.eeri.g Le Quy Don Technical UniversityHanoiViet Nam

The mai. goal of thi. study i. to use hi.her-order i.ogeometri. analysi.(i.A)to study the dynami. response of sandwi.h shells wi.h an auxeti. honeycomb core and two di.ferent functi.nally graded materi.ls(FGM)ski. layers(namely honeycomb-FGs shells)subjected to dynami. ***'s non-polynomi.l hi.her-order shear deformati.n theory(HsDT)i. used due to i.s si.pli.i.y and *** governi.g equati.n i. deri.ed from Hami.ton's *** veri.yi.g the present approach,the effect of i.put parameters on the dynami. response of honeycomb-FGs shells i. carri.d out i. detai..

关键词： i.A Elasti. foundati.n Dynami. response FGM Auxeti. honeycomb shell

Prognosti. value of N-termi.al pro B-type natri.reti. pepti.e and troponi. Ⅰ i. chi.dren wi.h dengue shock syndrome

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Asi.n Paci.i. Journal of Tropi.al Medi.i.e 2024年第4期17卷 166-172页

作者： Truyen Phuoc le Phung Nguyen The Nguyen Uni.ersi.y of Medi.i.e and Pharmacy at Ho Chi.Mi.h ci.y Ho Chi Minh CityVietnam Chi.dren's Hospi.al 1 Ho Chi Minh CityVietnam

Objecti.e:To i.vesti.ate the contri.uti.n of N-termi.al pro B-type natri.reti. pepti.e(NT-pro BNP)and troponi. Ⅰ to mortali.y i. chi.dren wi.h dengue shock ***:A longi.udi.al study was conducted on chi.dren wi.h dengue shock syndrome i. a hospi.al i. southern *** cli.i.al hi.tori.s,physi.al exami.ati.ns,and laboratory parameters,i.cludi.g NT-pro BNP and troponi. Ⅰ,were recorded.A compari.on between survi.al and non-survi.al was carri.d out to i.enti.y factors i.fluenci.g ***:A total of 107 pati.nts wi.h a medi.n age of 9 years were i.cluded i. the *** them,63.6%(68/107)presented wi.h compensated shock,36.4%(39/107)had hypotensi.e shock,23.4%(25/107)requi.ed mechani.al venti.ati.n,and 12.1%(13/107)*** NT-pro BNP levels were 3.9 pmol/L(i.R:1.9,10.3)and 15.2 pmol/L(5.8,46.3),whi.e the medi.n hi.h sensi.i.i.y troponi. Ⅰ levels were 20 pg/L(6,95)and 62 pg/L(12,325)at the fi.st and second measurements,*** mortali.y group exhi.i.ed hi.her rates of hypotensi.e shock,prolonged shock,lactate levels,li.er damage,NT-pro BNP,and troponi. Ⅰ *** shock(OR 12.96,95%Ci.2.70-62.30,P=0.004),prolonged shock(OR 39.40,95%Ci.6.68-232.70,PsT>1000 i./L(OR 9.50,95%Ci.2.63-34.34,P=0.041),and NT-pro BNP>7 pmol/L(OR 44.40,95%Ci.5.44-362.20,P=0.001)were i.enti.i.d as predi.ti.e factors for mortali.y i. dengue shock ***:The NT-pro BNP level could serve as a potenti.l bi.marker for predi.ti.g mortali.y i. chi.dren wi.h dengue shock syndrome.

关键词： Dengue shock syndrome Cardi.c enzyme NT-pro BNP Troponi.Ⅰ

A stati.ti.al study of Magneti. Flux Emergence i. solar Acti.e Regi.ns Pri.r to strongest Flares

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Research i. Astronomy and Astrophysi.s 2024年第4期24卷 147-160页

作者： Alexander s.Kutsenko Valenti.a i.Abramenko Andrei.A.Plotni.ov Cri.ean Astrophysi.al Observatory p/o NauchnyCrimea298409Russia

Usi.g the data on magneti. fi.ld maps and conti.uum i.tensi.y for solar Cycles 23 and 24,we explored 100 acti.e regi.ns(ARs)that produced M5.0 or stronger *** focus on the presence/absence of the emergence of magneti. flux i. these ARs 2-3 days before the strong flare *** found that 29 ARs i. the sample emerged monotoni.ally ami.st qui.t-sun.A major emergence of a new magneti. flux wi.hi. a pre-exi.ti.g AR yi.ldi.g the formati.n of a complex flare-producti.e confi.urati.n was observed i. another 24 *** 30 ARs,an i.si.ni.i.ant(i. terms of the total magneti. flux of pre-exi.ti.g AR)emergence of a new magneti. flux wi.hi. the pre-exi.ti.g magneti. confi.urati.n was observed;for some of them the emergence resulted i. a formati.n of a confi.urati.n wi.h a small δ-sunspot;11 out of 100 ARs exhi.i.ed no si.natures of magneti. flux emergence duri.g the enti.e i.terval of *** si. cases the emergence was i. progress when the AR appeared on the Eastern li.b,so that the classi.i.ati.n and ti.i.g of emergence were not *** conclude that the recent flux emergence i. not a necessary and/or suffi.i.nt condi.i.n for strong flari.g of an *** flux emergence rate of flare-producti.e ARs analyzed here was compared wi.h that of flare-qui.t ARs analyzed i. our previ.us *** revealed that the flare-producti.e ARs tend to di.play faster emergence than the flare-qui.t ones do.

关键词： sun:acti.i.y sun:flares sun:magneti. fi.lds

Heat Transfer and Flow structure of a Turbi.e Blade's Ai.-cooled leadi.g Edge Consi.eri.g Di.ferent Hole shapes and Addi.i.nal Flow Angles

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Journal of Thermal sci.nce 2024年第4期33卷 1421-1442页

作者： Qi. Runxuan ZHOU Xun WANG songtao CAi.le school of Energy sci.nce and Engi.eeri.g Harbin Institute of TechnologyHarbin150001China

A numeri.al study i. conducted to eluci.ate the i.pact of hole shapes and addi.i.nal flow angles on the flow structure of the coolant and temperature fi.ld i. the leadi.g edge area of the gas turbi.e *** typi.al hole shapes are consi.ered for the GE-E3 *** i.pact of the addi.i.nal flow angle(E)wi.hi. each hole shape on the temperature fi.ld i. *** results i.di.ate that for the leadi.g edge area and sucti.n surface,the fan-shaped hole case performs best i. decreasi.g temperatures,wi.h a decrease of about 43 *** i. mai.ly due to the fact that the fan-shaped hole has the maxi.um expansi.n i. hole spanwi.e *** the pressure surface,the cons.le hole case performs best i. decreasi.g temperatures,wi.h a maxi.um reducti.n of about 47.2 *** i.fluence of E on the surface temperature at leadi.g edge area vari.d between the di.ferent hole *** the cyli.der hole and cons.le hole,the E=-20°case has the lowest area-averaged *** both the fan-shaped hole and the 7-7-7 shaped hole are expansi.n holes,the pattern of vari.ti.n of the leadi.g edge area temperature wi.h i.creasi.g E i. si.i.ar for the fan-shaped hole case and 7-7-7 shaped hole *** E=20°case shows the lowest spanwi.e-averaged temperature near the hole outlet,and the E=-20°case shows the lowest spanwi.e-averaged temperature further downstream.

关键词： fi.m cooli.g GE-E3 turbi.e rotor blade conjugate heat transfer leadi.g edge

Di.turbances rejecti.n opti.i.ati.n based on i.proved two-degree-of-freedom LADRC for permanent magnet synchronous motor systems

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Defence Technology（防务技术） 2024年第3期33卷 518-531页

作者： Chenggang Wang Ji.nhu Yan Wenlong Li.Li.ng shan le sun school of Automati.n Nanjing University of Science and TechnologyNanjing 210094China

Permanent magnet synchronous motor(PMsM)speed control systems wi.h conventi.nal li.ear acti.e di.turbance rejecti.n control(CLADRC)strategy encounter i.sues regardi.g the coupli.g between dynami. response and di.turbance suppressi.n and have poor performance i. suppressi.g complex nonli.ear *** order to address these i.sues,thi. paper proposes an i.proved two-degree-of-freedom LADRC(TDOF-LADRC)strategy,whi.h can enhance the di.turbance rejecti.n performance of the system whi.e decoupli.g enti.ely the system's dynami. and anti.di.turbance performance to boost the system robustness and si.pli.y controller parameter *** models that consi.er total di.turbances are developed to desi.n the TDOF-LADRC speed controller ***,to evaluate the control performance of the TDOF-LADRC strategy,i.s stabi.i.y i. proven,and the i.fluence of each controller parameter on the system control performance i. *** on i.,a compari.on i. made between the di.turbance observati.n abi.i.y and anti.di.turbance performance of TDOF-LADRC and CLADRC to prove the superi.ri.y of TDOF-LADRC i. rejecti.g ***,experi.ents are performed on a 750 W PMsM experi.ental platform,and the results demonstrate that the proposed TDOF-LADRC exhi.i.s the properti.s of two degrees of freedom and i.proves the di.turbance rejecti.n performance of the PMsM system.

关键词： Permanent magnet synchronous motor(PMsM) Acti.e di.turbance rejecti.n control(ADRC) Di.turbance observer Two-degree-of-freedom control Anti.di.turbance