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Surface plasmon polariton at the interface of dielectric and graphene medium using Kerr effect

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Chinese Physics b 2018年第11期27卷 522-527页

作者： bakhtawar Muhammad haneef b A bacha h Khan M Atif Lab of Theoretical Physics Department of Physics Hazara University Department of Physics University of Malakand

We theoretically investigate the control of surface plasmon polariton（SPP） generated at the interface of dielectric and graphene medium under Kerr nonlinearity. The controlled Kerr nonlinear signal of probe light beam in a dielectric medium is used to generate SPPs at the interface of dielectric and graphene medium. The positive, negative absorption, and dispersion properties of SPPs are modified and controlled by the control and Kerr fields. A large amplification（negative absorption） is noted for SPPs under the Kerr nonlinearity. The normal/anomalous slope of dispersion and propagation length of SPPs is modified and controlled with Kerr nonlinearity. This leads to significant variation in slow and fast SPP propagation. The controlled slow and fast SPP propagation may predict significant applications in nano-photonics, optical tweezers, photovoltaic devices, plasmonster, and sensing technology.

关键词： surface plasmon polariton Kerr nonlinearity graphene

Further results on stability criteria for T-S fuzzy systems with time-varying delay 36

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Further results on stability criteria for T-S fuzzy systems ...

Attuned design of demand response program and M-FACTS for relieving congestion in a restructured market environment

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作者： Yajuan Liu Ju h.park S.M.Lee Department of Electrical Engineering Yeungnam University Department of Electronic Engineering Kyungpook National University

ISBN: (纸本)9781538629185

This paper studies the problem of stability for Takagi-Sugeno（T-S） fuzzy systems with time varying *** employing a new augmented Lyapunov-Krasovskii function,using the second-order bessel-Legendre inequality and combining with reciprocally convex approach,some less conservative delay-dependent stability criteria are derived within the framework of linear matrix inequalities（LMIs）.Two numerical examples are proposed to illustrate the effectiveness and the improvement of the proposed method.

关键词： T-S fuzzy systems Time varying delay Inequality inequality Lyapunov method

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Frontiers in Energy 2015年第3期9卷 282-296页

作者： Y. hAShEMI h. ShAYEGhI b. hAShEMI Technical Engineering Department University of Mohaghegh Ardabili Ardabil *** Iran Network Studies Group Bakhtar Regional Electric Company Arak *** Iran

This paper addresses the attuned use of multi- converter flexible alternative current transmission systems （M-FACTS） devices and demand response （DR） to perform congestion management （CM） in the deregulated environment. The strong control capability of the M- FACTS offers a great potential in solving many of the problems facing electric utilities. besides, DR is a novel procedure that can be an effective tool for reduction of congestion. A market clearing procedure is conducted based on maximizing social welfare （SW） and congestion as network constraint is paid by using concurrently the DR and M-FACTS. A multi-objective problem （MOP） based on the sum of the payments received by the generators for changing their output, the total payment received by DR participants to reduce their load and M-FACTS cost is systematized. For the solution of this problem a nonlinear time-varying evolution （NTVE） based multi-objective particle swarm optimization （MOPSO） style is formed. Fuzzy decision-making （FDM） and technique for order preference by similarity to ideal solution （TOPSIS） approaches are employed for finding the best compromise solution from the set of Pareto-solutions obtained through multi-objective particle swarm optimization-nonlinear time-varying evolution （MOPSO-NTVE）. In a real power system, Azarbaijan regional power system of Iran, comparative analysis of the results obtained from the application of the DR ＆ unified power flow controller （UPFC） and the DR ＆ M-FACTS are presented.

关键词： multi-converter flexible alternative currenttransmission systems (M-FACTS) demand response,

Empathic Responses of behavioral-Synchronization in human-Agent Interaction

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Computers, Materials & Continua 2022年第5期71卷 3761-3784页

作者： Sung park Seongeon park Mincheol Whang Savannah College of Art and Design SavannahGA31401USA Sangmyung University Seoul03016Korea

Artificial entities,such as virtual agents,have become more *** long-term presence among humans requires the virtual agent’s ability to express appropriate emotions to elicit the necessary empathy from the *** empathy involves behavioral mimicry,a synchronized co-movement between dyadic ***,the characteristics of such synchrony between humans and virtual agents remain unclear in empathic *** study evaluates the participant’s behavioral synchronization when a virtual agent exhibits an emotional expression congruent with the emotional context through facial expressions,behavioral gestures,and *** viewed an emotion-eliciting video stimulus(negative or positive)with a virtual *** participants then conversed with the virtual agent about the video,such as how the participant felt about the *** virtual agent expressed emotions congruent with the video or neutral emotion during the *** participants’facial expressions,such as the facial expressive intensity and facial muscle movement,were measured during the dialog using a *** results showed the participants’significant behavioral synchronization(i.e.,cosine similarity≥.05)in both the negative and positive emotion conditions,evident in the participant’s facial mimicry with the virtual ***,the participants’facial expressions,both movement and intensity,were significantly stronger in the emotional virtual agent than in the neutral virtual *** particular,we found that the facial muscle intensity of AU45(blink)is an effective index to assess the participant’s synchronization that differs by the individual’s empathic capability(low,mid,high).based on the results,we suggest an appraisal criterion to provide empirical conditions to validate empathic interaction based on the facial expression measures.

关键词： Facial emotion recognition facial expression virtual agent virtual human embodied conversational agent empathy human-computer interaction

An Investigation on Open-RAN Specifications:Use Cases,Security Threats,Requirements,Discussions

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Computer Modeling in Engineering & Sciences 2024年第10期141卷 13-41页

作者： heejae park Tri-haiNguyen Laihyuk park Department of Computer Science and Engineering Seoul National University of Science and TechnologySeoul01811Republic of Korea Faculty of Information Technology School of TechnologyVan Lang UniversityHo Chi Minh City70000Vietnam

The emergence of various technologies such as terahertz communications,Reconfigurable Intelligent Surfaces(RIS),and AI-powered communication services will burden network operators with rising infrastructure ***,the Open Radio Access Network(O-RAN)has been introduced as a solution for growing financial and operational burdens in beyond 5G(b5G)and 6G networks.O-RAN promotes openness and intelligence to overcome the limitations of traditional *** disaggregating conventional base band Units(bbUs)into O-RAN Distributed Units(O-DU)and O-RAN Centralized Units(O-CU),O-RAN offers greater flexibility for upgrades and network ***,this openness introduces new security challenges compared to traditional *** existing studies overlook these security requirements of the O-RAN *** gain deeper insights into the O-RAN system and security,this paper first provides an overview of the general O-RAN architecture and its diverse use cases relevant to b5G and 6G *** then delve into specifications of O-RAN security threats and requirements,aiming to mitigate security vulnerabilities *** providing a comprehensive understanding of O-RAN architecture,use cases,and security considerations,thisworkserves as a valuable resource for future research in O-RAN and its security.

关键词： O-RAN architecture use cases security issues security requirements security discussions

EXISTENCE FOR A TWO POINT bOUNDARY VALUE PRObLEM ARISING IN ELECTRODIFFUSION

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Acta Mathematica Scientia 1988年第4期8卷 373-387页

作者： h.b.Thompson Dept. of Math. Univ. of Queensland St. Lucia Australia

In this paper, we consider a two point boundary value problem of the formy″=f(x, y, y′, y（0）, y（1）);y′（0）=0=y′（1）,where f: [0,1]×R4n→R~n is continuous.

关键词： EXISTENCE FOR A TWO POINT bOUNDARY VALUE PRObLEM ARISING IN ELECTRODIFFUSION 一夕

The betti Numbers of Real Toric Varieties Associated to Weyl Chambers of Type b

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Chinese Annals of Mathematics,Series b 2017年第6期38卷 1213-1222页

作者： Suyoung ChOI boram park hanchul park Department of Mathematics Ajou University School of Mathematics Korea Institute for Advanced Study

The authors compute the(rational) betti number of real toric varieties associated to Weyl chambers of type b, and furthermore show that their integral cohomology is p-torsion free for all odd primes p.

关键词： Real toric variety Real toric manifold betti number Torsion-free cohomology Root system Weyl chambers Type b Generalized Euler number Springernumber Shellability

b(C6F5)3-Catalyzed sp3 C-Si bond Forming Consecutive Reactions

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Chinese Journal of Chemistry 2019年第10期37卷 1057-1071页

作者： Sehoon park Department of Chemistry Guangdong Technion Israel Institute of TechnologyShantouGuangdong 515063China

Transition metal-catalyzed hydrosilylation is one of the most widely utilized reduction methods as an alternative to hydrogenation in academia and *** feature distinct from hydrogenation would be able to install sp3 C—Si bond(s)onto substrates skeleton vio hydrosilylation of ***,b(C6F5)3 with hydrosilanes has been demonstrated to be an efficient,metal-free catalyst system for the consecutive transformation of heteroatom-containing substrates accompanied by the formation of sp3 C—Si bond(s),which has not been realized thus far under the transition meta卜catalyzed hydrosilylative *** this review,I outline the b(C6F5)3-mediated consecutive hydrosilylations of heteroarenes containing quinolines,pyridines,and furans,and of conjugated nitriles/imines to provide a new family of compounds having sp?C—Si bond(s)with high chemo-,regio-and/or *** silylative cascade conversion of unactivated A/-aryl piperidines to sila-/V-heterocycles catalyzed by b(C6F5)3 involving consecutive dehydrogenation,hydrosilylation,and intramolecular C(sp2)—h silylation,is presented in another *** selectivity and mechanism of the boron catalysis focused on the sp3 C—Si bond formation are highlighted.

关键词： catalyzed hydrogenation boron

higher-Order Line Element Analysis of Potential Field with Slender heterogeneities

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Computers, Materials & Continua 2016年第3期51卷 145-161页

作者： h.-S.Wang h.Jiang b.Yang School of Optoelectronics beijing Institute of Technology Beijing 100081China Department of Mechanical and Aerospace Engineering University of Texas at Arlington ArlingtonTX 76019USA State Key Laboratory of Digital Manufacturing Equipment and Technology Huazhong University of Science and TechnologyWuhanHuBei 430074China

Potential field due to line sources residing on slender heterogeneities is involved in various areas,such as heat conduction,potential flow,and *** dipolar line sources are either prescribed or induced due to close interaction with other *** calculation requires a higher-order scheme to take into account the dipolar effect as well as net source *** the present work,we apply such a higher-order line element method to analyze the potential field with cylindrical slender *** a benchmark example of two parallel rods,we compare the line element solution with the boundary element solution to show the accuracy as a function in terms of rods ***,we use more complicated examples to demonstrate the capability of the line element technique.

关键词： Electrostatics heat conduction Integral equation technique Line element method Mesh reduction method,Potential field problems