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Development of.an Explicit Symplectic Scheme that Optimizes the Disper.ion-r.lation Equation of.the Maxwell’s Equations

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Communications in Computational Physics 2013年第4期13卷 1107-1133页

作者： Tony W.H.sheu L.Y.Liang J.H.Li Depar.ment of.Engineer.ng Science and Ocean Engineer.ng National TaiwanUniversityNo.1Sec.4Roosevelt RoadTaipeiTaiwan Taida Institute of.Mathematical Science(TIMS) National Taiwan UniversityTaiwan Center.f.r.Quantum Science and Engineer.ng(CQSE) National Taiwan UniversityTaiwan

In this paper.an explicit f.nite-dif.er.nce time-domain scheme f.r.solving the Maxwell’s equations in non-stagger.d gr.ds is *** pr.posed scheme f.r.solving the f.r.day’s and Amp`er.’s equations in a theor.tical manner.is aimed to pr.ser.e discr.te zer.-diver.ence f.r.the electr.c and magnetic *** inher.nt local conser.ation laws in Maxwell’s equations ar. also pr.ser.ed discr.tely all the time using the explicit second-or.er.accur.te symplectic par.itioned r.nge-Kutta *** r.maining spatial der.vative ter.s in the semi-discr.tized f.r.day’s and Amp`er.’s equations ar. then discr.tized to pr.vide an accur.te mathematical disper.ion r.lation equation that gover.s the numer.cal angular.f.equency and the wavenumber. in two space *** achieve the goal of.getting the best disper.ive char.cter.stics,we pr.pose a f.ur.h-or.er.accur.te space center.d scheme which minimizes the dif.er.nce between the exact and numer.cal disper.ion r.lation *** the computational exer.ises,the pr.posed dual-pr.ser.ing solver.is computationally demonstr.ted to be ef.icient f.r.use to pr.dict the long-ter. accur.te Maxwell’s solutions.

关键词： Maxwell’s equations non-stagger.d gr.ds zer.-diver.ence f.ur.h-or.er dualpr.ser.ing solver disper.ion r.lation equations

A Wr.pping Encr.ption Based on Double r.ndomness Mechanism

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Computer., Mater.als & Continua 2023年第10期77卷 1143-1164页

作者： Yi-Li Huang f.ng-Yie Leu r.ey-Kai sheu Jung-Chun Liu Chi-Jan Huang Depar.ment of.Computer.Science Tunghai UniversityTaichung40764Taiwan Emer.ency r.sponse Management Center Ming Chung UniversityTaipei11103Taiwan Gener.l Education Center Ming Chuan UniversityTaipei11103Taiwan

Cur.ently,data secur.ty mainly r.lies on passwor.(PW)or.system channel key(SKCH)to encr.pt data bef.r. they ar. sent,no matter.whether.in br.adband networ.s,the 5th gener.tion(5G)mobile communications,satellite communications,and so *** these envir.nments,a f.xed passwor. or.channel key(e.g.,PW/SKCH)is of.en adopted to encr.pt dif.er.nt data,r.sulting in secur.ty r.sks since thisPW/SKCH may be solved af.er.hacker. collect a huge amount of.encr.pted ***,the most popular.y used secur.ty mechanism Advanced Encr.ption Standar.(AES)has its own pr.blems,e.g.,sever.l r.unds have been *** the other.hand,if.data pr.tected by the same PW/SKCH at dif.er.nt time points can der.ve dif.er.nt data encr.ption par.meter.,the system’s secur.ty level will be then gr.atly ***,in this study,a secur.ty scheme,named Wr.pping Encr.ption Based on Double r.ndomness Mechanism(WEBDr.,is pr.posed by integr.ting a passwor. key(or.a system channel key)and an Initialization Vector.IV)to gener.te an Initial Encr.ption Key(IEK).Also,an Accumulated Shif.ing Substitution(ASS)f.nction and a thr.e-dimensional encr.ption method ar. adopted to pr.duce a set of.*** r.ndomness encr.ption mechanisms ar. *** f.r.t gener.tes system sub-keys and calculates the length of.the f.r.t pseudo-r.ndom number. by employing IEK f.r.pr.viding subsequent encr.ption/*** second pr.duces a r.ndom encr.ption key and a sequence of.inter.al f.edback codes and computes the length of.the second pseudo-r.ndom number. f.r.encr.pting deliver.d messages.A wr.pped mechanism is f.r.her.utilized to pack a cipher.ext f.le so that a wr.pped cipher.ext f.le,r.ther.than the cipher.ext,will be pr.duced and then tr.nsmitted to its *** f.ndings ar. as *** theor.tic analyses and simulations demonstr.te that the secur.ty of.the WEBDr.in cloud communication has achieved its pr.ctical ***,AES r.quir.s 176 times exclusive Or.XOr.oper.tions f.r.both encr.ption an

关键词： Initial encr.ption key accumulated shif.ing substitution thr.e-dimensional oper.tion wr.pped cipher.ext f.le

Char.cter.zation of.f.gK gene and f.gK pr.tein r.quir.d f.r.H pylor. Colonization-f.om cloning to clinical r.levance

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Wor.d Jour.al of.Gastr.enter.logy 2006年第25期12卷 3989-3993页

作者： Jiunn-Jong Wu Bor.Shyang sheu Ay-Huey Huang Shin-Ting Lin Hsiao-Bai Yang Depar.ments of.Medical Technology National Cheng Kung Univer.ity Hospital 138 Sheng Li RoadTainan 70428TaiwanChina Depar.ment of.Inter.al Medicine National Cheng Kung Univer.ity Hospital 138 Sheng Li RoadTainan 70428TaiwanChina Depar.ments of.Pathology National Cheng Kung Univer.ity Hospital 138 Sheng Li RoadTainan 70428TaiwanChina Institutes of.Micr.biology and and immunity National Cheng Kung Univer.ity Hospital 138 Sheng Li RoadTainan 70428TaiwanChina

AIM： To char.cter.ze the r.le of.f.gK and its pr.tein pr.duct in Hpylor. colonization. METHODS： The PCr.cloning method identif.ed the f.gK gene. An isogenic f.gK mutant was constr.cted by gene r.placement and conf.r.ed by Souther. blot analysis and PCr.analysis. The r.combinant f.gK pr.tein （r.f.gK） was pur.f.ed. Electr.n micr.scopy （EM） was applied to demonstr.te the f.agella of.H pylor.. An in vitr. motility test was assessed in semisolid medium. The densities of.H pylor. colonization with either.the wild-type str.in or.its f.gK mutant wer. compar.d among BALB/c mice with or.without pr.-immunization with r.f.gK. The ser.logical r.sponses to r.f.gK wer. analyzed f.r.70 clinical patients with dif.er.nt densities of.H pylor. colonization. r.SULTS： f.om a duodenal ulcer.str.in, the f.gK gene was cloned and it contained 1821 bp, with a 95.7% identity to the published sequences. No f.agella wer. obser.ed under.EM f.r.the mutant str.in, which had a loss of.motility. Hpylor. density was lower.in the BALB/c mice inoculated by the mutant or.with pr.-immunization with r.f.gK compar.d to unimmunized mice or.mice inoculated by the wild-type str.in （P 〈 0.05）. In the H pylor.-inf.cted patients, the ser.logical r.sponses to r.f.gK wer. unif.r.ly low in titer.CONCLUSION： f.gK encoded by f.gK is impor.ant f.r.f.agella f.r.ation and H pylor. motility. Def.ciency in f.gK or.an enhanced ser.logical r.sponse to r.f.gK can inter.0}r. with Hpylor. colonization. f.gK of.Hpylor. could be a novel tar.et f.r.vaccination.

关键词： H pylor. Colonization Isogenic mutant BALB/c mice f.agella Vaccine.

GIS-based Evaluation on the f.ult Motion-Induced Coseismic Landslides

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Jour.al of.Mountain Science 2012年第5期9卷 601-612页

作者： Ming-Wey HUANG Chien-Yuan CHEN Tzu-Hsiu WU Chi-Ling CHANG sheu-Yien LIU Ching-Yun KAO Taiwan Science & Technology Center.f.r.Disaster.r.duction Sindian City Taipei County 231 Chinese Taipei Taiwan Chiayi Univer.ity Department of Civil & Water Resources Engineering Chiayi City 60004 Chinese Taipei Chia Nan Univer.ity of.Phar.acy and Science Institute of Industrial Safety & Disaster Prevention Tainan City 71710 Chinese Taipei

Ear.hquake-induced potential landslides ar. commonly estimated using landslide susceptibility maps. Never.heless, the f.ult location is not identif.ed and the gr.und motion caused by it is unavailable in the map. Thus, potential coseismic landslides f.r.a specif.c f.ult motion-induced ear.hquake could not be pr.dicted using the map. It is meaningf.l to incor.or.te the f.ult location and gr.und motion char.cter.stics into the landslide pr.dication model. A new method f.r.a specif.c f.ult motion-induced coseismic landslide pr.diction model using GIS （Geogr.phic Inf.r.ation System） is pr.posed her.in. Location of.mountain r.dges, slope gr.dients over.45~, PVGA （Peak Ver.ical Gr.und Acceler.tions） exceeded o.15 g, and PHGA （Peak Hor.zontal Gr.und Acceler.tions） exceeded o.25 g of.slope units wer. r.pr.senting locations that initiated landslides dur.ng the 1999 Chi-Chi ear.hquake in Taiwan. These coseismic landslide char.cter.stics wer. used to identif. ar.as wher. landslides occur.ed dur.ng Meishan f.ult motion-induced str.ng gr.und motions in Chiayi County in Taiwan. The str.ng gr.und motion （over.8 Gal in the database, 1 Gal = 0.0l m/s2, and 1 g = 981 GaD char.cter.stics wer. evaluated by the f.ult length, site distance to the f.ult, and topogr.phy, and their.attenuation r.lations ar. pr.sented in GIS. The r.sults of.the analysis show that coseismic landslide ar.as could be identif.ed pr.mptly using GIS. The ear.hquake intensity and f.cus depthhave visible ef.ects on gr.und motion. The shallower.the f.cus depth, the lar.er.the magnitude incr.ase of.the landslides. The GIS-based landslide pr.dication method is valuable combining the geomor.hic char.cter.stics and gr.und motion attenuation r.lationships f.r.a potential r.gion landslide hazar. assessment and in disaster.mitigation planning.

关键词： Coseismic landslide GIS Chi-Chiear.hquake

Str.ctur.l r.liability Assessment by a Modif.ed Spectr.l Stochastic Meshless Local Petr.v-Galer.in Method

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Wor.d Jour.al of.Mechanics 2013年第2期3卷 101-111页

作者： Guang Yih sheu Depar.ment of.Accounting and Inf.r.ation System Chang-Jung Christian University Tainan Chinese Taipei Department of Civil Engineering Feng-Chia University Taichung Chinese Taipei

This study pr.sents a new tool f.r.solving stochastic boundar.-value pr.blems. This tool is cr.ated by modif. the pr.vious spectr.l stochastic meshless local Petr.v-Galer.in method using the MLPG5 scheme. This modif.ed spectr.l stochastic meshless local Petr.v-Galer.in method is selectively applied to pr.dict the str.ctur.l f.ilur. pr.bability with the uncer.ainty in the spatial var.ability of.mechanical pr.per.ies. Except f.r.the MLPG5 scheme, der.ving the pr.posed spectr.l stochastic meshless local Petr.v-Galer.in f.r.ulation adopts gener.lized polynomial chaos expansions of.r.ndom mechanical pr.per.ies. Pr.dicting the str.ctur.l f.ilur. pr.bability is based on the f.r.t-or.er.r.liability method. f.r.her.compar.ng the spectr.l stochastic f.nite element-based and meshless local Petr.v-Galer.in-based pr.dicted str.ctur.l f.ilur. pr.babilities indicates that the pr.posed spectr.l stochastic meshless local Petr.v-Galer.in method pr.dicts the mor. accur.te str.ctur.l f.ilur. pr.bability than the spectr.l stochastic f.nite element method does. In addition, gener.ting spectr.l stochastic meshless local Petr.v-Galer.in r.sults ar. consider.bly time-saving than gener.ting Monte-Car.o simulation r.sults does. In conclusion, the spectr.l stochastic meshless local Petr.v-Galer.in method ser.es as a time-saving tool f.r.solving stochastic boundar.-value pr.blems suf.iciently accur.tely.

关键词： Spectr.l Stochastic Meshless Local Petr.v-Galer.in Method Gener.lized Polynomial Chaos Expansion f.r.t-Or.er r.liability Method Str.ctur.l f.ilur. Pr.bability r.liability Index

Scler.stin activity plays a key r.le in the negative ef.ect of.glucocor.icoid signaling on osteoblast f.nction in mice

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Bone r.sear.h 2017年第2期5卷 95-108页

作者： Er.c E Beier.Tzong-Jen sheu Emily A r.sseguie Masahiko Takahata Hani A Awad Debor.h A Cor.-Slechta J Edwar. Puzas Depar.ment of.Envir.nmental Medicine University of Rochester School of Medicine and Dentistry Rochester NY USA Depar.ment of.Envir.nmental and Occupational Medicine Rutgers University Piscataway NJ USA and Center.f.r.Musculoskeletal r.sear.h University of Rochester School of Medicine and Dentistry Rochester NY USA

Str.ss dur.ng pr.natal development is cor.elated with detr.mental cognitive and behavior.l outcomes in of.spr.ng. However. the long-ter. impact of.pr.natal str.ss(PS) and disr.pted glucocor.icoid signaling on bone mass and str.ngth is not under.tood. In contr.st, the detr.mental ef.ect of.lead(Pb) on skeletal health is well documented. As str.ss and Pb act on common biological tar.ets via glucocor.icoid signaling pathways and co-occur.in the envir.nment, this study f.r.t sought to assess the combined ef.ect of.str.ss and Pb on bone quality in association with alter.tions in glucocor.icoid signaling. Bone par.meter. wer. evaluated using micr.CT, histomor.hometr., and str.ngth deter.ination in 8-month-old male mouse of.spr.ng subjected to PS on gestational days 16 and 17, lif.time Pb exposur.(100 p.p.m. Pb in dr.nking water., or.to both. Pb r.duced tr.becular.bone mass and, when combined with PS, Pb unmasked an exagger.ted decr.ment in bone mass and tensile str.ngth. Next, to char.cter.ze a mechanism of.glucocor.icoid ef.ect on bone, pr.dnisolone was implanted subcutaneously(contr.lled-r.lease pellet, 5 mg·kg^(-1) per.day) in 5-month-old mice that decr.ased osteoblastic activity and incr.ased scler.stin and leptin levels. f.r.her.or., the synthetic glucocor.icoid dexamethasone alter. the anabolic Wnt signaling pathway. The Wnt pathway inhibitor.scler.stin has sever.l glucocor.icoid r.sponse elements, and dexamethasone administr.tion to osteoblastic cells induces scler.stin expr.ssion. Dexamethasone tr.atment of.isolated bone mar.ow cells decr.ased bone nodule f.r.ation, wher.as r.moval of.scler.stin pr.tected against this decr.ment in ***, these f.ndings suggest that bone loss associated with ster.id-induced osteopor.sis is a consequence of.scler.stin-mediated r.str.ction of.Wnt signaling, which may mechanistically f.cilitate glucocor.icoid toxicity in bone.

关键词： Scler.stin pr.natal negative

High-Or.er.Spectr.l Stochastic f.nite Element Analysis of.Stochastic Elliptical Par.ial Dif.er.ntial Equations

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Applied Mathematics 2013年第5期4卷 18-28页

作者： Guang Yih sheu Depar.ment of.Accounting and Inf.r.ation System Chang-Jung Christian University Gueiren Tainan Taiwan

This study pr.sents an exper.ment of.impr.ving the per.0}r.ance of.spectr.l stochastic f.nite element method using high-or.er.elements. This exper.ment is implemented thr.ugh a two-dimensional spectr.l stochastic f.nite element f.r.ulation of.an elliptic par.ial dif.er.ntial equation having stochastic coef.icients. Der.ving this spectr.l stochastic f.nite element f.r.ulation couples a two-dimensional deter.inistic f.nite element f.r.ulation of.an elliptic par.ial dif.er.ntial equation with gener.lized polynomial chaos expansions of.stochastic coef.icients. f.r.her.inspection of.the per.0}r.ance of.r.sulting spectr.l stochastic f.nite element f.r.ulation with adopting linear.and quadr.tic (9-node or.8-node) quadr.later.l elements f.nds that mor. accur.te standar. deviations of.unknowns ar. sur.r.singly pr.dicted using quadr.tic quadr.later.l elements, especially under.high autocor.elation f.nction values of.stochastic coef.icients. In addition, cr.ating spectr.l stochastic f.nite element r.sults using quadr.tic quadr.later.l elements is not unacceptably time-consuming. Ther.f.r., this study concludes that adopting high-or.er.elements can be a lower.cost method to impr.ve the per.0}r.ance of.spectr.l stochastic f.nite element method.

关键词： Spectr.l Stochastic f.nite Element Method Gener.lized Polynomial Chaos Expansion High-Or.er Elements

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热力学遗传算法计算效率的改进

软件学报 2008年第7期19卷 1613-1622页

作者：应伟勤李元香 sheu Phillip C-Y 武汉大学软件工程国家重点实验室湖北武汉430072 Depar.ment of.Electr.cal Engineer.ng and Computer.Science University of CaliforniaIrvineCA 92697USA

热力学遗传算法(ther.odynamical genetic algor.thms,简称TDGA)借鉴固体退火过程中能量与熵的竞争模式来协调GA中"选择压力"和"种群多样性"之间的冲突.然而TDGA目前极高的计算代价限制了其应用.为了提高TDGA的计算效率,首先定义一种等... 详细信息

热力学遗传算法(ther.odynamical genetic algor.thms,简称TDGA)借鉴固体退火过程中能量与熵的竞争模式来协调GA中"选择压力"和"种群多样性"之间的冲突.然而TDGA目前极高的计算代价限制了其应用.为了提高TDGA的计算效率,首先定义一种等级熵(r.ting-based entr.py,简称r.)度量方法,它能以较小的计算成本度量种群中个体适应值的分散程度.然后引入分量热力学替换规则(component ther.odynamical r.placement,简称CTr.,有效地降低了替换规则的复杂度.同时也证明了CTr.则具有驱动种群自由能近似最速下降的能力.在0-1背包问题上的实验结果表明,r.方法和CTr.则在保持TDGA良好的性能与稳定性的同时,极大地提高了其计算效率.

关键词：遗传算法热力学计算效率多样性度量潜换规则

r.sistance switching f.r.r.AM applications

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Science China(Inf.r.ation Sciences) 2011年第5期54卷 1073-1086页

作者： CHEN f.eder.ck T. LEE HengYuan HSU YenYa CHEN PangShiu LIU WenHsing TSAI ChenHan sheu ShyhShyuan TSAI MingJinn Nanoelectr.nic Technology Division Electronics and Optoelectronics Research Laboratories Industrial Technology Research Institute (ITRI) Depar.ment of.Chemical and Mater.als Engineer.ng Ming Shin University of Science and Technology

r.sistive r.ndom access memor. (r.AM or.r.r.M) is a non-volatile memor. (NVM) technology that consumes minimal ener.y while of.er.ng sub-nanosecond switching. In addition, the data stability against high temper.tur. and cycling wear.is ver. r.bust, allowing new NVM applications in a var.ety of.mar.ets (au- tomotive, embedded, stor.ge, r.M). Based on sudden conduction thr.ugh oxide insulator., the char.cter.stics of.r.AM technology have still yet to be f.lly descr.bed. In this paper. we pr.sent our.cur.ent under.tanding of.this ver. pr.mising technology.

关键词： r.ndom access memor. stor.ge oxide br.akdown oxygen vacancies