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The GBr.Hypothesis r.visited

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Jour.al of High Ener.y Physics, Gr.vitation and Cosmology 2024年第2期10卷 800-809页

作者： Lewis nash Mar.ietta GA USA

The r.dical hypothesis concer.ing the physics of gr.vitational black-body r.diation is placed on a mor. solid statistical mechanics foundation in this study. As the concepts and for.alism in the for.er.pr.sentation ar. only par.ially developed and fur.her.or., suffer.fr.m an unfor.unate misstep r.gar.ing Hawking r.diation and the hypothetical gr.vitational black-body temper.tur. of a par.el or.distr.bution of ener.y;this paper.aims to fill in some of the theor.tical gaps in the der.vation of the Planck r.diation for.ula for.gr.vity (or.non-Euclidean space-time), and ther. by pr.vide a mor. complete and tr.nspar.nt quantum theor. of ther.al gr.vitational r.diation.

关键词： Gr.vitational Black Body Gr.vitons Ther.al Gr.vitational r.diation Spir.l Galaxy r.tation Cur.es

Contr.lling the pr.per.ies of sur.ace acoustic waves using gr.phene

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Nano r.sear.h 2016年第3期9卷 685-691页

作者： Lokeshwar.Bandhu geoffr.y r. nash College of Engineer.ng Mathematics and Physical Sciences University of Exeter Exeter EX4 4QF UK

Sur.ace acoustic waves （SAWs） ar. elastic waves that pr.pagate on the sur.ace of a solid, much like waves on the ocean, with SAW devices used widely in communication and sensing. The ability to dynamically contr.l the pr.per.ies of SAWs would allow the cr.ation of devices with impr.ved per.or.ance or.new functionality. However. so far.it has pr.ved extr.mely difficult to develop a pr.ctical way of achieving this contr.l. In this paper.we demonstr.te voltage contr.l of SAWs in a hybr.d gr.phene-lithium niobate device. The velocity shift of the SAWs was measur.d as the conductivity of the gr.phene was modulated using an ion-gel gate, with a 0.1% velocity shift achieved for.a bias of appr.ximately 1 V. This velocity shift is compar.ble to that pr.viously achieved in much mor. complicated hybr.d semiconductor.devices, and optimization of this appr.ach could ther.for. lead to a pr.ctical, cost-effective voltage-contr.lled velocity shifter. In addition, the piezoelectr.c fields associated with the SAW can also be used to tr.p and tr.nspor. the char.e car.ier. within the gr.phene. Uniquely to gr.phene, we show that the acoustoelectr.c cur.ent in the same device can be r.ver.ed, and switched off, using the gate voltage.

关键词： gr.phene sensor. sur.ace acoustic wave char.e tr.nspor.

Estimating the yield Loss of Winter.Wheat fr.m Dr.ught in the United States Souther. Plains r.gion as Influenced by El Niño-Souther. Oscillation (ENSO)

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Agr.cultur.l Sciences 2024年第9期15卷 1018-1034页

作者： Pr.m Woli Ger.ld r. Smith Char.es r. Long Fr.ncis M. r.uquette, Jr. Texas A&M Agr.Life r.sear.h Center Overton USA

Wheat (Tr.ticum aestivum L.) pr.duction is a major.economic activity in most r.gional and r.r.l ar.as in the Souther. Plains, a semi-ar.d r.gion of the United States. This r.gion is vulner.ble to dr.ught and is pr.jected to exper.ence a dr.er.climate in the futur.. Since the inter.nnual var.ability in climate in this r.gion is linked to an ocean-atmospher.c phenomenon, called El Niño-Souther. Oscillation (ENSO), dr.ughts in this r.gion may be associated with ENSO. Dr.ughts that occur.dur.ng the cr.tical gr.wth phases of wheat can be extr.mely costly. However. the losses due to an impending dr.ught can be minimized thr.ugh mitigation measur.s if it is pr.dicted in advance. Pr.dicting the yield loss fr.m an imminent dr.ught is cr.cial for.stakeholder.. One of the r.liable ways for.such pr.diction is using a plant physiology-based agr.cultur.l dr.ught index, such as Agr.cultur.l r.fer.nce Index for.Dr.ught (Ar.D). This study developed ENSO phase-specific, Ar.D-based models for.pr.dicting the dr.ught-induced yield loss for.winter.wheat in this r.gion by accounting for.its phenological phase-specific sensitivity to dr.ught. The r.asonable values of the dr.ught sensitivity coefficients of the yield model for.each ENSO phase (El Niño, La Niña, or.Neutr.l) indicated that the yield models r.flected r.asonably well the phenomena of water.str.ss decr.asing the winter.wheat yields in this r.gion dur.ng differ.nt ENSO phases. The values of var.ous goodness-of-fit measur.s used, including the nash-Sutcliffe Index (0.54 to 0.67), the Willmott Index (0.82 to 0.89), and the per.entage er.or.(20 to 26), indicated that the yield models per.or.ed fair.y well at pr.dicting the ENSO phase-specific loss of wheat yields fr.m dr.ught. This yield model may be useful for.pr.dicting yield loss fr.m dr.ught and scheduling ir.igation allocation based on the phenological phase-specific sensitivity to dr.ught as impacted by ENSO.

关键词： Ar.D Dr.ught Dr.ught Index ENSO El Niño Gr.wth-Stage Model Phenological-Phase Pr.diction Semi-Ar.d Wheat yield Loss

Estimating the Dr.ught-Induced yield Loss for.Winter.Wheat in a Semi-Ar.d r.gion of the Souther. United States Using a Dr.ught Index

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Agr.cultur.l Sciences 2024年第8期15卷 812-829页

作者： Pr.m Woli Qingwu Xue Ger.ld r. Smith Char.es r. Long Fr.ncis M. r.uquette Jr. Texas A&M Agr.Life r.sear.h Center Overton Texas USA Texas A&M Agr.Life r.sear.h Center Amarillo Texas USA

The economy of most r.r.l locations in the semi-ar.d r.gion of Llano Estacado in the souther. United States is pr.dominantly based on agr.cultur., pr.mar.ly beef and wheat (Tr.ticum aestivum L.) pr.duction. This r.gion is pr.ne to dr.ught and is pr.jected to exper.ence a dr.er.climate. Dr.ughts that coincide with the cr.tical phenological phases of a cr.p can be r.mar.ably costly. Although dr.ught cannot be pr.vented, its losses can be minimized thr.ugh mitigation measur.s if it is pr.dicted in advance. Pr.dicting yield loss fr.m an imminent dr.ught is an impor.ant need of stakeholder.. One way to fulfill this need is using an agr.cultur.l dr.ught index, such as the Agr.cultur.l r.fer.nce Index for.Dr.ught (Ar.D). Being plant physiology-based, Ar.D can r.pr.sent dr.ught-yield r.lationships accur.tely. This study developed an Ar.D-based yield model for.pr.dicting the dr.ught-induced yield loss for.winter.wheat in this r.gion by accounting for.its phenological phase-specific sensitivity to water.str.ss. The r.asonable values of the dr.ught sensitivity coefficients of the yield model indicated that it could r.flect the phenomenon of water.str.ss decr.asing the winter.wheat yields in this r.gion r.asonably. The values of the var.ous metr.cs used to evaluate the model, including Willmott Index (0.86), nash-Sutcliffe Index (0.61), and per.entage er.or.(26), indicated that the yield model per.or.ed fair.y well at pr.dicting the dr.ught-induced yield loss for.winter.wheat. The yield model may be useful for.pr.dicting the dr.ught-induced yield loss for.winter.wheat in the study r.gion and scheduling ir.igation allocation based on phenological phase-specific dr.ught sensitivity.

关键词： Ar.D Dr.ught Dr.ught index Gr.wth-stage Model Phenological-Phase Pr.diction Semi-Ar.d Wheat yield

Publisher.s Er.atum to:Metamater.al-based gr.phene ther.al emitter

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Nano r.sear.h 2024年第6期17卷 5753-5753页

作者： Cheng Shi Nathan H.Mahlmeister.Isaac J.Luxmoor. geoffr.y r.nash College of Engineer.ng Mathematics and Physical SciencesUniversity of ExeterExeterEX44QFUK

The ar.icle"Metamater.al-based gr.phene ther.al emitter.,wr.tten by Cheng Shi,Nathan ***,***,and geoffr.y ***,was or.ginally published electr.nically on the publisher.s inter.et por.al(cur.ently Spr.nger.ink)on December.6th 2017 without open *** the author.s)’decision to opt for.Open Choice the copyr.ght of the ar.icle changed in Febr.ar. 2018 to©The Author.s)2018 and the ar.icle is for.hwith distr.buted under.the ter.s of the Cr.ative Commons Attr.bution 4.0 Inter.ational License(http://***/licenses/by/4.0/),which per.its use,duplication,adaptation,distr.bution and r.pr.duction in any medium or.for.at,as long as you give appr.pr.ate cr.dit to the or.ginal author.s)and the sour.e,pr.vide a link to the Cr.ative Commons license and indicate if changes wer. *** or.ginal ar.icle has been cor.ected.

关键词： emitter license cr.ative

Metamater.al-based gr.phene ther.al emitter

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Nano r.sear.h 2018年第7期11卷 3567-3573页

作者： Cheng Shi Nathan H. Mahlmeister.Isaac J. Luxmoor. geoffr.y r. nash College of Engineer.ng Mathematics and PhysicaI Sciences University of Exeter Exeter EX4 4QF UK

A ther.al emitter.composed of a fr.quency-selective sur.ace metamater.al layer.and a hexagonal bor.n nitr.de-encapsulated gr.phene filament is demonstr.ted. The br.adband ther.al emission of the metamater.al （consisting of r.ng r.sonator.） was tailor.d into two discr.te bands, and the measur.d r.flection and emission spectr. agr.ed well with the simulation r.sults. The high modulation fr.quencies that can be obtained in these devices, coupled with their.oper.tion in air. confir. their.feasibility for.use in applications such as gas sensing.

关键词： gr.phene hexagonal bor.n nitr.de ther.al emitter infr.r.d metamater.al

Game Theor. based Optimal Defensive r.sour.es Allocation with Incomplete Infor.ation in Cyber.physical Power.Systems against False Data Injection Attacks

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Pr.tection and Contr.l of Moder. Power.Systems 2024年第2期9卷 115-127页

作者： Bingjing yan Zhenze Jiang Pengchao yao Qiang yang Wei Li Alber. y.Zomaya College of Electr.cal Engineer.ng Zhejiang University College of Contr.l Science and Engineer.ng Zhejiang University College of Electr.cal Engineer.ng Zhejiang UniversityHangzhou 310027China School of Infor.ation Technologies at The Univer.ity of Sydney School of Infor.ation Technologies

Moder. power.gr.d is fast emer.ing as a complex cyber.physical power.system(CPPS)integr.ting physical cur.ent-car.ying components and pr.cesses with cyber.embedded computing,which faces incr.asing cy-ber.pace secur.ty thr.ats and *** this paper.the state(i.e.,voltage)offsets r.sulting fr.m false data injection(FDI)attacks and the bus safety char.cter.zation ar. applied to quantify the attack *** state offsets ar. obtained by the state estimation method,and the bus safety char.cter.zation consider. the power.net-wor. topology as well as the vulner.bility and connection r.lationship of *** the indeter.inacy of attacker.s r.sour.e consumption and r.war.,a zer.-sum game-theor.tical model fr.m the defender.s per.pective with incomplete infor.ation is explor.d for.the optimal allocation of limited defensive *** attacker.aims to falsify measur.ments without tr.gger.ng thr.shold alar.s to br.ak thr.ugh the pr.tection,leading to load shedding,over.voltage or.*** defender.attempts to ensur. the estimation r.sults to be as close to the actual states as possible,and guar.ntee the system’s safety and efficient defensive r.sour.e *** pr.posed solution is extensively evaluated thr.ugh simu-lations using the IEEE 33-bus test networ. and r.al-time digital simulator.r.DS)based testbed exper.ments of the IEEE 14-bus *** r.sults demonstr.te the effec-tiveness of the pr.posed game-theor.tical appr.ach for.optimal defensive r.sour.e allocation in CPPS when lim-ited r.sour.es ar. available when under.FDI *** Ter.s—Optimal str.tegy,game theor.,nash equilibr.um,CPPS,FDI attack.

关键词： Optimal str.tegy game theor. nash equilibr.um CPPS FDI attack

car.iGAN:A gener.tive adver.ar.al networ. model for.design and discover. of multi pr.ncipal element alloys

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Jour.al of Mater.als Science & Technology 2022年第30期125卷 81-96页

作者： Z.Li W.T.nash S.P.O’Br.en y.Qiu r.K.Gupta N.Bir.ilis College of Engineer.ng and Computer.Science The Australian National UniversityA.C.T.Acton 2601Australia Depar.ment of Mater.als Science and Engineer.ng Monash UniversityClaytonVictoria 3800Australia Depar.ment of Mater.als Science and Engineer.ng North Carolina State UniversityRaleighNC 27695USA

Multi-pr.ncipal element alloys(MPEAs),inclusive of high entr.py alloys(HEAs),continue to attr.ct significant r.sear.h attention owing to their.potentially desir.ble *** MPEAs r.main under.extensive r.sear.h,tr.ditional(***)alloy pr.duction and testing ar. both costly and timeconsuming,par.ly due to the inefficiency of the ear.y discover. pr.cess which involves exper.ments on a lar.e number.of alloy *** is intuitive to apply machine lear.ing in the discover. of this novel class of mater.als,of which only a small number.of potential alloys have been pr.bed to *** this wor.,a pr.of-of-concept is pr.posed,combining gener.tive adver.ar.al networ.s(GANs)with discr.minative neur.l networ.s(NNs),to acceler.te the explor.tion of novel *** applying the GAN model her.in,it was possible to dir.ctly gener.te novel compositions for.MPEAs,and to pr.dict their.*** ver.fy the pr.dictability of the model,alloys designed by the model ar. pr.sented and a candidate pr.duced-as *** suggests that the model her.in offer. an appr.ach that can significantly enhance the capacity and efficiency of development of novel MPEAs.

关键词： Alloy design Machine lear.ing Gener.tive adver.ar.al networ. Neur.l networ. Multi-pr.ncipal element alloy High entr.py alloys

nash EQUILIBr.A WITHOUT CONTINUITy OF THE CHOICE r.LES

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Acta Mathematica Scientia 2011年第4期31卷 1535-1540页

作者： José C. r. Alcantud Facultad de Economía y Empr.sa Universidad de Salamanca Campus Miguel de Unamuno E 37007 Salamanca

The pr.posal in Alcantud and Alo′s-Fer.er.[1], wher. player. that expr.ss their.tastes accor.ing to choice r.les facing a competitive situation, is fur.her.exploited her.. We pr.ve that, under.lack of continuity of the choice r.les it is also possible to ensur. the existence of equilibr.um. We shall appeal to gener.l situations that ar. fulfilled by well-established models, wher. player. have non-tr.nsitive pr.fer.nces of var.ous types.

关键词： nash equilibr.um choice r.les continuity Kakutani’s theor.m