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Stabi.i.y Predi.ti.n i. Smart Gri. Usi.g PSO Opti.i.ed XGBoost Algori.hm wi.h Dynami. i.erti. Wei.ht Updati.n

Computer Modeli.g i. Engi.eeri.g & Sci.nces 2025年第1期142卷 909-931页

作者： Adel Bi.busayyi. Mohemmed sha Department of.Sof.ware Engi.eeri.g College of.Computer Engi.eeri.g and Sci.nces i. Al-Kharj Prince Sattam Bin Abdulaziz UniversityAl-Kharj11942Saudi Arabia

Predi.ti.n of.stabi.i.y i. SG(Smart Gri.)i. essenti.l i. mai.tai.i.g consi.tency and reli.bi.i.y of.power supply i. gri. *** the f.uctuati.ns i. power generati.n and consumpti.n patterns of.smart ci.i.s assi.ts i. ef.ecti.ely managi.g conti.uous power supply i. the *** also possesses a better i.pact on averti.g overloadi.g and permi.ti.g ef.ecti.e energy *** though many tradi.i.nal techni.ues have predi.ted the consumpti.n rate f.r preservi.g stabi.i.y,enhancement i. requi.ed i. predi.ti.n measures wi.h mi.i.i.ed *** overcome the compli.ati.ns i. exi.ti.g studi.s,thi. paper i.tends to predi.t stabi.i.y f.om the smart gri. stabi.i.y predi.ti.n dataset usi.g machi.e learni.g *** accompli.h thi.,pre-processi.g i. perf.rmed i.i.i.lly to handle mi.si.g values si.ce i. develops bi.sed models when mi.si.g values are mi.9}ndled and perf.rms f.ature scali.g to normali.e i.dependent data ***,the pre-processed data are taken f.r trai.i.g and *** that,the regressi.n process i. perf.rmed usi.g Modi.0}ed PSO(Parti.le Swarm Opti.i.ati.n)opti.i.ed XGBoost Techni.ue wi.h dynami. i.erti. wei.ht update,whi.h analyses vari.bles li.e gamma(G),reacti.n ti.e(tau1–tau4),and power balance(p1–p4)f.r provi.i.g ef.ecti.e f.ture stabi.i.y i. *** PSO attai.s opti.al soluti.n by adjusti.g posi.i.n through dynami. i.erti.l wei.hts,i. i. i.tegrated wi.h XGBoost due to i.s scalabi.i.y and f.ster computati.nal speed *** hyperparameters of.XGBoost are f.ne-tuned i. the trai.i.g process f.r achi.vi.g promi.i.g outcomes on *** results are measured through evaluati.n metri.s such as MSE(Mean Square Error)of.0.011312781,MAE(Mean Absolute Error)of.0.008596322,and RMSE(Root Mean Square Error)of.0.010636156 and MAPE(Mean Absolute Percentage Error)value of.0.0052 whi.h determi.e the ef.i.acy of.the system.

关键词： Smart Gri. machi.e learni.g parti.le swarm opti.i.ati.n XGBoost dynami. i.erti. wei.ht update

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f.derated Learni.g’s Role i. Next-Gen TV Ad Opti.i.ati.n

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Computers, Materi.ls & Conti.ua 2025年第1期82卷 675-712页

作者： Gabri.la Dobri.a Si.ona-Vasi.i.a Oprea Adela Bâra Department of.Economi. i.f.rmati.s and Cyberneti.s Bucharest University of Economic StudiesBucharest010374Romania

i. the rapi.ly evolvi.g landscape of.televi.i.n adverti.i.g,opti.i.i.g ad schedules to maxi.i.e vi.wer engagement and revenue has become *** methods of.en operate i. si.os,li.i.i.g the potenti.l i.si.hts gai.ed f.om broader data analysi. due to concerns over pri.acy and data *** arti.le i.troduces a novel approach that leverages f.derated Learni.g(f.)to enhance TV ad schedule opti.i.ati.n,combi.i.g the strengths of.local opti.i.ati.n techni.ues wi.h the power of.global Machi.e Learni.g(ML)models to uncover acti.nable i.si.hts wi.hout compromi.i.g data *** combi.es li.ear programmi.g f.r i.i.i.l ads scheduli.g opti.i.ati.n wi.h ML—speci.0}cally,a K-Nearest Nei.hbors(KNN)model—f.r predi.ti.g ad spot *** i.to account the di.ersi.y and the di.0}i.ulty of.the ad-scheduli.g problem,we propose a prescri.ti.epredi.ti.e approach i. whi.h f.rst the posi.i.n of.the ads i. opti.i.ed(usi.g Google’s OR-Tools CP-SAT)and then the scheduled posi.i.n of.all ads wi.l be the result of.the opti.i.ati.n ***,thi. output becomes the target of.a predi.ti.e task that predi.ts the posi.i.n of.new entri.s based on thei. characteri.ti.s ensuri.g the i.plementati.n of.the scheduli.g at large scale(usi.g KNN,Li.ht Gradi.nt Boosti.g Machi.e and random f.rest).f.rthermore,we explore the i.tegrati.n of.f. to enhance predi.ti.e accuracy and strategi. i.si.ht across di.0}erent broadcasti.g networks whi.e preservi.g data *** f. approach resulted i. 8750 ads bei.g preci.ely matched to thei. opti.al category placements,showcasi.g an ali.nment wi.h the i.tended di.ersi.y ***,there was a mi.i.al devi.ti.n observed,wi.h 1133 ads posi.i.ned wi.hi. a one-category vari.nce f.om thei. i.eal placement i. the ori.i.al dataset.

关键词： Ad scheduli.g prescri.ti.e-predi.ti.e approach f.derated learni.g KNN

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MXene Hybri.i.ed Polymer wi.h Enhanced Electromagneti. Energy Harvest f.r Sensi.i.ed Mi.rowave Actuati.n and Self.Powered Moti.n Sensi.g

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Nano-Mi.ro Letters 2025年第3期17卷 265-279页

作者： Yu‑Ze Wang Yu‑Chang Wang Ti.g‑Ti.g Li. Quan‑Li.ng Zhao Chen‑sha Li.Mao‑Sheng Cao School of.Materi.ls Sci.nce and Engi.eeri.g Beijing Institute of TechnologyBeijing 100081People’s Republic of China School of.Materi.ls Sci.nce and Engi.eeri.g Peking UniversityBeijing 100871People’s Republic of China School of.Mechani.al and Materi.l Engi.eeri.g North China University of TechnologyBeijing 100144People’s Republic of China Key Laboratory of.f.ncti.nal i.organi. Materi.l Chemi.try Ministry of Education of the People’s Republic of ChinaHeilongjiang UniversityHarbin 150080People’s Republic of China

Polymeri. mi.rowave actuators combi.i.g ti.sue-li.e sof.ness wi.h programmablemi.rowave-responsi.e def.rmati.n hold great promi.e f.r mobi.e i.telli.entdevi.es and bi.ni. sof. robots. However, thei. appli.ati.n i. challenged by restri.ted electromagneti.sensi.i.i.y and i.tri.ate sensi.g coupli.g. i. thi. study, a sensi.i.ed polymeri.mi.rowave actuator i. f.bri.ated by hybri.i.i.g a li.ui. crystal polymer wi.h Ti.C2Tx(MXene). Compared to the i.i.i.l counterpart, the hybri. polymer exhi.i.s uni.ue spacechargepolari.ati.n and i.terf.ci.l polari.ati.n, resulti.g i. si.ni.0}cant i.provements of.30% i. the di.lectri. loss f.ctor and 830% i. the apparent ef.i.i.ncy of.electromagneti.energy harvest. The sensi.i.ed mi.rowave actuati.n demonstrates as the shortenedresponse ti.e of.nearly 10 s, whi.h i. merely 13% of.that f.r the i.i.i.l shape memory polymer. Moreover, the ultra-low content of.MXene (upto 0.15 wt%) benef.ts f.r mai.tai.i.g the actuati.n potenti.l of.the hybri. polymer. An i.novati.e self.powered sensi.g prototype that combi.esdri.i.g and pi.zoelectri. polymers i. developed, whi.h generates real-ti.e electri. potenti.l f.edback (open-ci.cui. potenti.l of.~ 3 mV) duri.gactuati.n. The polari.ati.n-domi.ant energy conversi.n mechani.m observed i. the MXene-polymer hybri. structure f.rni.hes a new approachf.r developi.g ef.i.i.nt electromagneti. di.si.ati.e structures and shows potenti.l f.r advanci.g polymeri. electromagneti. i.telli.ent devi.es.

关键词： Mi.rowave absorpti.n Electromagneti. response Energy harvest Self.sensi.g Sof. actuator

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f.ci.e synthesi. of.the dodecahydri.ododecaborate (B12H122-) f.om borane Lewi. base adducts

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Sci.nce Chi.a Chemi.try 2025年

作者： Yi.Ji.g Xi.-ran Li. Xi.g-Hua Wang Hui.Han sha-sha Li.ng Xi.Meng Chen Dong-Hui.Wei.Lai.Sheng Wang Xue-Ni.n Chen College of.Chemi.try Zhengzhou University School of.Chemi.try and Chemi.al Engi.eeri.g Henan Key Laboratory of Boron Chemistry and Advanced MaterialsHenan Normal University Department of.Chemi.try Brown University

Polyhedral boranes are a class of.well-known boron molecular clusters wi.ely used i. energy,chemi.try,medi.i.e,and materi.ls sci.nce because of.thei. uni.ue physi.al and chemi.al *** ef.orts have been made i. the past decades to f.nd more ef.ecti.e syntheti. methods f.r thi. i.portant class of.boron ***,exi.ti.g syntheti. methods suf.er f.om low ef.i.i.ncy and low ***,we report a f.ci.e one-pot synthesi. of.（CH3）3S]2B12H12wi.h moderate yi.lds at mi.d *** mechani.ms f.r the multi.step chemoselecti.e synthesi. of.B12H122-wi.hout other by-products are eluci.ated based on theoreti.al results and our previ.us *** Lewi. base used i. B–H bond condensati.n reacti.n,whi.h acts as a hydrogen or to balance the newly generated polyhedral borane charges,i. proposed and studi.d i. *** current study has led to a more ef.ecti.e and selecti.e syntheti. method f.r B12H122-and has also i.pli.ated the syntheses of.other new polyhedral boranes.

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Evaluati.n of.f.MA-440 f.r i.cludi.g soi.-structure i.teracti.n

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Earthquake Engi.eeri.g and Engi.eeri.g Vi.rati.n 2010年第3期9卷 397-408页

作者： Khoshnoudi.n f. Behmanesh i. f.culty of.Ci.i. Engi.eeri.g Amirkabir University of Technology f.culty of.Ci.i. and Envi.onmental Engi.eeri.g Tufts University

Replaci.g the enti.e soi.-structure system wi.h a f.xed base osci.lator to consi.er the ef.ect of.soi.-structure i.teracti.n （SSi. i. a common analysi. method i. sei.mi. desi.n. Thi. techni.ue has been i.cluded i. desi.n procedures such as NEHRP, ASCE, etc. by def.ni.g an equi.alent f.ndamental peri.d and dampi.g rati. that can modi.0} the response of.the structure. However, recent studi.s i.di.ate that the ef.ects of.SSi.should be reconsi.ered when a structure undergoes a nonli.ear di.placement demand. i. recent documents on Nonli.ear Stati. Procedures （NSPs）, f.MA-440 （2005）, a modi.0}ed dampi.g rati. of.the replacement osci.lator was proposed by i.troduci.g the ducti.i.y of.the soi.-structure system obtai.ed f.om pushover analysi.. i. thi. paper, the dampi.g def.ned i. f.MA-440 to i.clude the soi.-structure i.teracti.n ef.ect i. evaluated, and the accuracy of.the Coef.i.i.nt Method gi.en i. f.MA-440 and the Equi.alent Li.eari.ati.n Method i. studi.d. Although the i.provements f.r Nonli.ear Stati. Procedures （NSPs） i. f.MA-440 are achi.ved f.r a f.xed base SDOf.structure, the soi. ef.ects are not perf.ctly obtai.ed. f.rthermore, the dampi.g def.ni.i.n of.a soi.-structure system i. extended to structures to consi.er bi.i.ear behavi.r.

关键词： soi.-structure i.teracti.n f.undati.n dampi.g i.elasti. behavi.r equi.alent li.eari.ati.n

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数媒时代焦虑、抑郁与社会比较的关系

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心理科学进展 2025年第1期33卷 92-106,I0001-I0007页

作者：赵立白莎首都经济贸易大学工商管理学院北京100070

社会焦虑和抑郁现象日益严重。为理解与探索数媒时代焦虑、抑郁的引致因素及应对策略,研究采用系统性文献综述方法,基于情感事件理论和社会比较理论构建框架,梳理了社会比较的不同亚型与焦虑、抑郁的关系以及网络媒体环境的权变作用。... 详细信息

社会焦虑和抑郁现象日益严重。为理解与探索数媒时代焦虑、抑郁的引致因素及应对策略,研究采用系统性文献综述方法,基于情感事件理论和社会比较理论构建框架,梳理了社会比较的不同亚型与焦虑、抑郁的关系以及网络媒体环境的权变作用。研究发现,消极社会比较(传统上行比较和下行同化比较)可能会引发焦虑和抑郁,社交网络平台对此负面影响具有催化作用;而情绪比较和下行对比比较可以缓解焦虑和抑郁,网络健康社区促进了情绪比较的积极作用的发挥。研究推进了社会比较理论在情绪情感领域的应用,确定了焦虑、抑郁与网络健康社区可供性的关联,也为网络社区服务、运营和设计的原则提供参考和借鉴以帮助个体应对心理健康问题。研究还指出焦虑、抑郁和社会比较关系后续研究的可能路径和方向。

关键词：社会比较焦虑抑郁社交网络平台网络健康社区

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Brai.s wi.h Tri.i.l Si.ple Centrali.er

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Algebra Colloqui.m 2015年第4期22卷 561-566页

作者： U. Ali.f. Azam i. Javai. A. Hai.er Center f.r Advanced Studi.s i. Pure and Appli.d Mathemati.s Bahauddi. Zakari.a Uni.ersi.y Multan Pakistan Department of.Mathemati.s Jazan University Jazan Saudi Arabia

i. thi. paper, we prove that the n-si.ple brai. di.i.i.le by the generators xi.f.r all 2 ≤ i.≤n - 2 has tri.i.l si.ple centrali.er. Consequently, the commuti.g graph def.ned on the set of.si.ple brai.s i. di.connect... 详细信息

关键词： si.ple brai. si.ple centrali.er commuti.g graph

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Si.pli.0}ed approach f.r desi.n of.raf. f.undati.ns agai.st f.ult *** i.f.ee-f.eld

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Earthquake Engi.eeri.g and Engi.eeri.g Vi.rati.n 2008年第2期7卷 147-163页

作者： i. Anastasopoulos N. Gerolymos G. Gazetas M. f. Bransb School of.Ci.i. Engi.eeri.g National Technical University of AthensGreece Civil LecturerEngineeringUniversity of DundeeScotlandUK School of.Ci.i. Engi.eeri.g National Technical University of AthensGreece Ci.i. Engi.eeri.g University of DundeeScotlandUK

Over the past f.w decades, earthquake engi.eeri.g research mai.ly f.cused on the ef.ects of.strong sei.mi. shaki.g. Af.er the 1999 earthquakes i. Turkey and Tai.an, and thanks to numerous cases where f.ult rupture caused substanti.l damage to structures, the i.portance of.f.ulti.g-i.duced def.rmati.n has re-emerged. Thi. paper, along wi.h i.s compani.n （Part Ⅱ）, exploi.s parametri. results of.f.ni.e element analyses and centri.0}ge model testi.g i. developi.g a f.ur-step semi.analyti.al approach f.r analysi. of.di.-sli. （normal and thrust） f.ult rupture propagati.n through sand, i.s emergence on the ground surf.ce, and i.s i.teracti.n wi.h raf. f.undati.ns. The present paper （Part Ⅰ） f.cuses on the ef.ects of.f.ulti.g i. the absence of.a structure （i.e., i. the f.ee-f.eld）. The semi.analyti.al approach compri.es two-steps： the f.rst deals wi.h the rupture path and the esti.ati.n of.the locati.n of.f.ult outcroppi.g, and the second wi.h the tectoni.ally- i.duced di.placement prof.le at the ground surf.ce. i. both cases, si.ple mechani.al analogues are used to deri.e si.pli.0}ed semi.analyti.al expressi.ns. Centri.0}ge model test data, i. combi.ati.n wi.h parametri. results f.om nonli.ear f.ni.e element analyses, are uti.i.ed f.r model cali.rati.n. The deri.ed semi.analyti.al expressi.ns are shown to compare reasonably well wi.h more ri.orous experi.ental and theoreti.al data, thus provi.i.g a usef.l tool f.r a f.rst esti.ati.n of.near-f.ult sei.mi. hazard.

关键词： f.ult rupture semi.analyti.al expressi.n soi.-structure i.teracti.n earthquake

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Real-Ti.e Characteri.ati.n of.f.bri.ogen i.teracti.n wi.h Modi.0}ed Ti.ani.m Di.xi.e f.lm by Quartz Crystal Mi.robalance wi.h Di.si.ati.n

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Chi.ese Journal of.Chemi.al Physi.s 2014年第3期27卷 355-360页

作者： An-sha Zhao Zhao Wang Xi.o-hua Zhu Manf.ed f. Mai.z Nan Huang Key Laboratory of.Advanced Materi.ls Technology of.Mi.i.try of.Educati.n Department of Materials Science and Engineering Southwest Jiaotong University Chengdu 510031 China Lei.ni. i.sti.ute of.Polymer Research Dresden Max Bergmann Center of Biomaterials Dresden Dresden Germany

The adsorpti.n of.f.bri.ogen can be used as a qui.k i.di.ator of.surf.ce haemocompati.i.i.y because of.i.s promi.ent role i. coagulati.n and platelet adhesi.n. i. thi. work the molecular i.teracti.n between f.bri.ogen and a modi.0}ed ti.ani.m oxi.e surf.ce/platelet has been studi.d by quartz crystal mi.robalanee wi.h di.si.ati.n （QCM-D） i. si.u. i. order to f.rther characteri.e the conf.rmati.n of.adsorbed f.bri.ogen, αC and γ-chai. anti.ody were used to check the ori.ntati.n and denaturati.n of.f.bri.ogen on soli. surf.ce. QCM-D i.vesti.a- ti.ns revealed the f.bri.ogen have the trend to adsorb on hydroplli.i. surf.ce i. a si.e-on ori.ntati.n by posi.i.ely charged αC domai.s, whi.h would reduce the exposure of.platelet bondi.g si.e on γ chai. and enable less platelet adhesi.n and be acti.ated. These obser- vati.ns suggest that certai. conf.rmati.ns of.adsorbed f.bri.ogen are less platelet adhesi.e than others, whi.h opens a possi.i.i.y f.r creati.g a non-platelet adhesi.e substrates.

关键词： Quartz crystal mi.robalance wi.h di.si.ati.n f.bri.ogen adsorpti.n Conf.r- mati.n change Blood platelet

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Transverse approach between real world concentrati.ns of.SO_2, NO_2, BTEX, aldehyde emi.si.ns and corrosi.n i. the Grand Mare tunnel

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Journal of.Envi.onmental Sci.nces 2012年第7期24卷 1240-1250页

作者： i. Ameur-Bouddabbous J. Kasperek A. Barbi.r f. Harel B. Hannoyer GPM-UMR 6634 CNRS. Uf. Sci.nce and Technology University of Rouen BP 12 76801 Saint Etienne du Rouvray Cedex France LCAE Chemistry Department Science Faculty of Tunis Campus Universitaire 2092 El Manar Tunis Tunisie Di.NO Rue de Verdun 76160 Darnetal France

Wi.h regard to automoti.e traf.i., a tunnel-type semi.enclosed atmosphere i. characteri.ed by a hi.her concentrati.n of.gaseous pollutants than on urban traf.i. roads and hi.hli.hts the gaseous ef.luent speci.s havi.g an i.pact on materi.l degradati.n. Theref.re, a transverse approach between ai. quali.y and i.s consequences upon the longevi.y of.materi.ls i. necessary, i.plyi.g better knowledge of.tunnel atmosphere and a better understandi.g of.materi.l degradati.n i.si.e a tunnel f.r operati.g admi.i.trati.n. Gaseous pollutant measurements carri.d out i. a road tunnel i. Rouen （Normandy） gi.e the real world traf.i. concentrati.ns of.experi.ental exposure condi.i.ns. The sampli.g campai.ns, achi.ved i. summer and wi.ter i.clude SO2, NO2, BTEX and aldehyde analyses. Ef.luent prof.les i. the upward and downward tubes have been establi.hed. The current work shows that SO2, NO〉 f.rmaldehyde, acetaldehyde, propanal and butanal must be consi.ered i. the degradati.n process of.materi.ls i. a stuf.y envi.onment. As regards NO,, i.s concentrati.n depends on the modi.0}cati.n of.the automoti.e f.eet. The total aldehyde concentrati.ns i.di.ate no parti.ular trend between the two bores. f.rmaldehyde, acetaldehyde, propanal, butanal and acrolei. speci.s are the most abundant speci.s emi.ted by vehi.les and represent 90% to 95% of.the total aldehyde emi.si.ns.

关键词： SO2 tunnel study aldehydes NO2 BTEX atmospheri. corrosi.n

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