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Chi.ese Sci.nce Bulleti. 2004年第4期49卷 410-415页

作者： Li. Yu V. Shi.hov SHi.Ji.ngfeng E. Vaganov SUN Junyan CAi.Qi.fang i. djanseitov AN Zhi.heng State Key Laboratory of Loess and Quaternary Geology The Institute of Earth Environment Chinese Academy of Sciences Xi'an 710075China Sukachev i.sti.ute of Forest Russian Academy of Sciences Kras-noyarsk 660036 Russia

By usi.g Caterpi.lar-SSA analysi. method, through the process of embeddi.g, si.gular value decompo-si.i.n, groupi.g and di.gonal averagi.g, the seasonal pre-ci.i.ati.n trend at north Helan Mountai. and Bai.i.aobo regi.ns, i.ner Mongoli. for the next 20 years i. forecasted. The results show an i.creasi.g preci.i.ati.n trend from 1992 to 2004. i. the subsequent decade the preci.i.ati.n should reduce qui.kly, and i. wi.l reach a mi.i.um near 2012 to 2014 i. both regi.ns. The drought caused by the decrease of the preci.i.ati.n from May to July i. the north Helan Mountai. area duri.g the peri.d of 2013—2014 i. probably qui.e si.i.ar to that around 1929. Further, the peri.d of pre-ci.i.ati.n gradual i.crease follows i. the researched regi.ns.

关键词：贺兰山内蒙古季降水量预测气候变化

Reconstructi.n of May——July preci.i.ati.n i. the north Helan Mountai., i.ner Mongoli. si.ce A.D. 1726 from tree-ri.g late-wood wi.ths

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Chi.ese Sci.nce Bulleti. 2004年第4期49卷 405-409页

作者： Li. Yu SHi.Ji.ngfeng V. Shi.hov E. Vaganov YANG Yi.ke CAi.Qi.fang SUN Junyan WANG Lei.i. djanseitov State Key Laboratory of Loess and Quaternary Geology Institute of Earth Environment Chinese Academy of Sciences Xi' an 710075China Sukachev i.sti.ute of Forest Russian Academy of Sciences Kras-noyarsk 660036 Russia

By analyzi.g stati.ti.al characteri.ti.s of fi.e tree-ri.g standard chronologi.s, early-wood ri.g wi.th (EWW), late-wood ri.g wi.th (LWW), total ri.g wi.th (TRW), mi.i.um early-wood densi.y (Mi.D), maxi.um late-wood densi.y (MaxD) and, thei. cli.ati. response re-specti.ely, we reconstructed the May to July preci.i.ati.n usi.g late-wood ri.g wi.th (LWW) over the north Helan Mountai. si.ce A.D. 1726. The explai.ed vari.nce i. 42% (R2adj = 41%, F = 31.46, p i.g average, the explai.ed vari.nce reaches 82% (F = 156.9, p i.fall reconstructi.n of the northern Helan Mountai. di.plays a qui.e si.i.ar vari.ti.n pattern wi.h that of the Apri. to early July preci.i.ati.n i. Bai.i.aobao, east of i.ner Mongoli. for the last 150 years. i. may reflect the i.tensi.y vari.ti.n of the East Asi. Summer Monsoon front to a certai. extent. Spectrum analysi. shows 11-a and 22-a peri.di.i.i.s i. the May to July preci.i.ati.n reconstructi.n at the north Helan Mountai..

关键词：内蒙古年代学贺兰山树木气候学降水量统计

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

The evaluati.n of next-generati.n probi.ti.s on broi.er growth performance, gut morphology, gut mi.robi.me, nutri.nt di.esti.i.i.y, i. addi.i.n to enzyme producti.n of Baci.lus spp. i. vi.ro

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ANi.AL NUTRi.i.N 2024年第3期18卷 133-144页

作者： Bromfi.ld, Jacoba i. Ni.nafs, Shahram Chen, Xi.oji.g von Hellens, Juhani.Horyanto, Darwi. Sun, Baode Yu, Lei.Tran, Vi.t Hai.Navarro, Marta Roura, Eugeni Bi.proton Pty Ltd Brisbane Qld Australia Uni. Queensland Ctr Nutr & Food Sci Queensland Alliance Agr & Food Innovat Brisbane Qld Australia Uni. Queensland Ctr Anim Sci Queensland Alliance Agr & Food Innovat Brisbane Qld Australia

Consi.erable research has been conducted i.to the effi.acy of i.di.i.ual probi.ti.s i. broi.er producti.n, however i.formati.n on the most effecti.e combi.ati.ns of synergi.ti. Baci.lus probi.ti. i. lacki.g. Thi. study i.vesti.ated the i.pact of di.ferent Baci.lus strai. combi.ati.ns i. broi.er chi.kens, as well as i. vi.ro enzyme producti.n. i. experi.ent one, a total of 576 Ross 308 broi.ers at 1 d old were grown for 21 d across 6 treatments of mai.e-soybean di.ts (n = 12 pens per treatment) to compare three di.ferent strai. combi.ati.ns (formulati.n 1 [F1]: 3 strai.s Baci.lus amyloli.uefaci.ns; F2: Baci.lus coagulans and 2 strai.s B. amyloli.uefaci.ns; F3: B. coagulans, Baci.lus li.heni.ormi. and 2 strai.s B. amyloli.uefaci.ns; F5: Baci.lus subti.i., B. li.heni.ormi. and 2 strai.s B. amyloli.uefaci.ns), posi.i.e control (PC), and a negati.e control anti.i.ti. treatment group (NC). i. Exp. 2, a total of 360 one-day-old ROSS308 broi.ers were used to test fi.e treatments (n = 9) i.cludi.g PC, NC, F1 and F5 (selected from Exp. 1), and F4 (Baci.lus pumi.i. and 2 strai.s B. amyloli.uefaci.ns) i. a mai.e-soybean di.t. B. amyloli.uefaci.ns F1 demonstrated a si.ni.i.ant i.provement i. feed conversi.n rati. (FCR) compared to F2 at d 14 (1.49 vs 2.10; P = 0.038) and the body wei.ht (BW) at d 21 (847.0 g vs 787.4 g) compared to other combi.ati.ns (P = 0.027). The FCR at d 21 tended to be lower i. bi.ds fed F1 (1.46 vs 1.66) compared to the control (P = 0.068). Probi.ti. treatments had si.ni.i.antly i.proved nutri.nt di.esti.i.i.y compared to the PC and NC. Also, probi.ti. treatments supported the growth of Streptococcus, a common commensal genus and reduced the abundance of genera that correlated wi.h low wei.ht gai. such as Akkermansi.. Experi.ent two revealed that F4 i.proved FCR (P i. vi.ro testi.g showed a hi.h producti.n of protease and amylase by Baci.lus. Thus, the addi.i.n of Baci.lus probi.ti.s, parti.ularly contai.i.g B. amyloli

关键词： Broi.er Probi.ti. Baci.lus Gut health Mi.robi.l profi.e LACTi.-ACi. BACTERi. i.TESTi.AL Mi.ROBi.TA GENE-EXPRESSi.N SUPPLEMENTATi.N SUBTi.i. BARLEY Di.TS

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

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

DFT Studi.s of Electroni. Properti.s and Effect of He and Xe i.corporati.n i. Selected Cerami.s

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Journal of Modern Physi.s 2024年第10期15卷 1485-1501页

作者： Barbara Szpunar Jayangani.i. Ranasi.ghe Jerzy A. Szpunar Department of Physi.s and Engi.eeri.g Physi.s University of Saskatchewan Saskatoon Canada Department of Mechani.al Engi.eeri.g University of Saskatchewan Saskatoon Canada

The electroni. properti.s of several prospecti.e nuclear fuels are not yet well known. We used Quantum Espresso and EPW codes to evaluate the electron densi.y of states, the electroni. heat capaci.y coeffi.i.nt, the electron-phonon coupli.g strength, the number of mobi.i.y electrons, and the electroni. heat conducti.i.y. The electroni. properti.s for ThN, ThC and UN usi.g a sli.htly di.ferent approach that were previ.usly evaluated are di.cussed and the results are compared. We confi.med that whi.e the electroni. heat capaci.y coeffi.i.nt i. li.early dependent on the electron densi.y of states at Fermi.energy, such a si.ple relati.n could not be used to determi.e the di.ference i. the electroni. heat conducti.i.y of i.vesti.ated materi.ls. The hi.hest heat conducti.i.y was regi.tered i. ThN. These metalli. fuels also have hi.h U/Th densi.y, therefore are more economi.al si.ce enri.hment i. expensi.e. Furthermore, i. i. i.portant to exami.e swelli.g i. these hi.h-densi.y fuels. We evaluated that UN had 42% more U atoms per uni. volume than UO2 and a 55% hi.her volume i.crease when accommodati.g one Xe atom i. one i.tersti.i.l of a (2 × 2 × 2) supercell. However, for He, the volume i.crease was 27% lower i. UN. i.teresti.gly, even though the Th atom’s densi.y i. ThN and ThC was lower than that of U atoms i. the UN compound, a si.i.ar trend of volume changes was found. We concluded, therefore, that when we consi.er swelli.g, the local structural symmetry (tetrahedral versus octahedral si.es) i. more i.portant than the densi.y of atoms. The 37 % greater of absolute value of the total energy i.crease due to i.corporati.n of Xe i. ThC versus ThN cannot be explai.ed by the crystal structure si.ce a ThC-Xe supercell has a hi.her latti.e constant than a ThN-Xe correspondi.g supercell. Such results can only be explai.ed by i.vesti.ati.g electroni. structure.

关键词： UN ThN ThC Thermal Conducti.i.y Defects

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

A Novel Approach for Developi.g a Li.ear Regressi.n Model wi.hi. Logi.ti. Cluster Usi.g Sci.i.-Learn

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Journal of Data Analysi. and i.formati.n Processi.g 2024年第3期12卷 348-369页

作者： Nwosu Ambrose Gi.bert i. O. Ai.ufua Choji.Davou Nyap Departments of Computer Sci.nces Nasarawa State University Keffi Nigeria Departments of Computer Sci.nces University of Jos Jos Nigeria

Due to the rapi. development of logi.ti. i.dustry, transportati.n cost i. also i.creasi.g, and fi.di.g trends i. transportati.n acti.i.i.s wi.l i.pact posi.i.ely i. i.vestment i. transportati.n i.frastructure. There i. li.i.ed li.erature and data-dri.en analysi. about trends i. transportati.n mode. Thi. thesi. delves i.to the operati.nal challenges of vehi.le performance management wi.hi. logi.ti.s clusters, a cri.i.al aspect of effi.i.nt supply chai. operati.ns. i. ai.s to address the i.sues faced by logi.ti.s organi.ati.ns i. opti.i.i.g thei. vehi.le fleets’ performance, essenti.l for seamless logi.ti.s operati.ns. The study’s core desi.n i.volves the development of a predi.ti.e logi.ti.s model based on regressi.n, focused on forecasti.g, and evaluati.g vehi.le performance i. logi.ti.s clusters. i. encompasses a comprehensi.e li.erature revi.w, research methodology, data sources, vari.bles, feature engi.eeri.g, and model trai.i.g and evaluati.n and F-test analysi. was done to i.enti.y and veri.y the relati.nshi.s between attri.utes and the target vari.ble. The fi.di.gs hi.hli.ht the model’s effi.acy, wi.h a low mean squared error (MSE) value of 3.42, i.di.ati.g i.s accuracy i. predi.ti.g performance metri.s. The hi.h R-squared (R2) score of 0.921 emphasi.es i.s abi.i.y to capture relati.nshi.s between i.put characteri.ti.s and performance metri.s. The model’s trai.i.g and testi.g accuracy further attest to i.s reli.bi.i.y and generali.ati.n capabi.i.i.s. i. i.terpretati.n, thi. research underscores the practi.al si.ni.i.ance of the fi.di.gs. The regressi.n-based model provi.es a practi.al soluti.n for the logi.ti.s i.dustry, enabli.g i.formed deci.i.ns regardi.g resource allocati.n, mai.tenance planni.g, and deli.ery route opti.i.ati.n. Thi. contri.utes to enhanced overall logi.ti.s performance and customer servi.e. By addressi.g performance gaps and embraci.g modern logi.ti.s technologi.s, the study supports the ongoi.g evoluti.n of vehi.le performance management

关键词： Mean Squared Error R2 Score F-Test MSE