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m.ltiparty Quantum.Cryptographic Protocol

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Chinese Physics Letters 2008年第10期25卷 3543-3546页

作者： m. Ram.an m. k. khan Departm.nt of Physics Quaid-i-Azam.University Islam.bad 45320 Pakistan

We propose a m.ltiparty quantum.cryptographic protocol. Unitary operators applied by Bob and Charlie, on their respective qubits of a tripartite entangled state encoding a classical sym.ol that can be decoded at Alice＇s end with the help of a decoding m.trix. Eve＇s presence can be detected by the disturbance of the decoding m.trix. Our protocol is secure against intercept resend attack.. Furtherm.re, it is eifficient and determ.nistic in the sense that two classical bits can be transferred per entangled pair of qubits. It is worth m.ntioning that in this protocol, the sam. sym.ol can be used for k.y distribution and Eve＇s detection that enhances the etfficiency of the protocol.

关键词： the power-law exponents precipitation durative abrupt precipitation change

Effect of Precursor m.chanism.on CO-NO Catalytic Reaction on Body-Centred Cubic Structure： m.nte Carlo Sim.lation

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Chinese Physics Letters 2005年第9期22卷 2422-2425页

作者： A. U. Qaisrani m. k.alid m. k. khan Departm.nt of Physics Gomal University Dera Ismail Khan Pakistan Departm.nt of Physics Quaid-i-Azam University Islamabad Pakistan

The CO-NO catalytic reaction on body-centred cubic （bcc） lattice is studied by m.nte Carlo sim.lation. The sim.le Langm.ir-Hinshelwood （LH） m.chanism.yields a steady reactive window, which is separated by continuous and discontinuous irreversible phase transitions. The effect of precursor m.chanism.on the phase diagram.of the system.is also studied. According to this m.chanism. the precursor m.tion of CO m.lecules is considered only on the surface of bcc lattice. Som. interesting observations are reported.

关键词： k.NETIC PHASE-TRANSITIONS SURFACE-REACTION m.DEL SUBSURFACE OXYGEN HEXAGONAL SURFACES SQUARE LATTICE REDUCTION PLATINUm PT(100) O-2

Energy Scenario: Production, Consum.tion and Prospect of Renewable Energy in Australia

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Journal of Power and Energy Engineering 2014年第4期2卷 19-25页

作者： A. k. Azad m. m. k. khan T. Ahasan S. F. Ahm.d School of Engineering and Technology Central Queensland University Rockhampton Australia

Australia is the world’s 9th largest energy producer, 17th largest consum.r of non-renewable energy resources and rank. 18th on a per person energy consum.tion ***’s energy consum.tion is prim.rily com.osed of non-renewable energy resources (coal, oil, gas and related products), which represent 96% of total energy consum.tion. Renewables, the m.jority of which is bioenergy (wood and wood waste, biom.ss, and biogas) com.ined with clear energy nam.ly wind, solar hot water, solar electricity, hydroelectricity account for the rem.ining 4% ***’s renewable energy resources are largely undeveloped which will contribute directly to the Australian econom.. In this article, a review of literature on energy scenario is presented and ***’s total energy production, consum.tion, storage and export (including renewable and non-renewable) data has been analyzed and discussed in this study. The m.in objective of the study is to analyze the prospect of renewable energy inAustralia. This study concludes that Australian econom. will grow faster if its undeveloped renewable energies can be used efficiently for electricity generation and transport sector.

关键词： Renewable Energy Non-Renewable Energy Total Energy Production Electricity Generation Econom.

Perform.nce Evaluation of Hybrid Green Roof System.in a Subtropical Clim.te Using Fluent

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Journal of Power and Energy Engineering 2014年第4期2卷 113-119页

作者： S. F. Ahm.d T. Ahasan m. G. Rasul m. m. k. khan A. k. Azad School of Engineering and Technology Central Queensland University Rockhampton Campus QueenslandAustralia

Energy disaster is one of the m.jor obstacles in the progress of hum.n society. There are som. on-going researches to overcom. this for a sustainable environm.nt. Green roof system.is one of them.which assist to reduce energy consum.tion of the buildings. The green roof system.for a building involves a green roof that is partially or com.letely covered with vegetation and plant over a waterproofing m.m.rane. Green roofs provide shade and rem.ve heat from.the air through evapotranspiration, reducing tem.eratures of the roof surface and the surrounding air. This paper reports the therm.l perform.nce of hybrid green roof system.for a hot and hum.d subtropical clim.tic zone in Queensland, Australia. A therm.l m.del is developed for the green roof system.using ANSYS Fluent. Data were collected from.two m.delled room., one connected with green roof system.and other non-green roof system. The room. were built from.two shipping containers and?installed at Central Queensland University, Rock.am.ton, Australia. Im.act of air tem.erature on room.cooling perform.nce is assessed in this study. A tem.erature reduction of 0.95°C was observed in the room.with green roof which will save energy cost in buildings. Only 1.7% variation in tem.erature was found in num.rical result in com.arison with experim.ntal result.

关键词： Therm.l Perform.nce Green Roof Subtropical Clim.te ANSYS Fluent

Applications of variable therm.l features for the bioconvective flow of Jeffrey nanofluids due to stretching surface with m.ss suction effects: Cattaneo-Christov m.del

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Applied m.them.tics and m.chanics(English Edition) 2025年第2期46卷 391-402页

作者： S.U.khan m.GARAYEV ADNAN k.RAm.SH m.EL m.LIGY D.ABDUVALIEVA m.I.khan Departm.nt of m.them.tics Namal University Departm.nt of m.them.tics College of Science King Saud University Departm.nt of m.them.tics Mohi-ud-Din Islamic University Departm.nt of Pure and Applied m.them.tics School of Mathematical SciencesSunway University Departm.nt of m.them.tics Graphic Era (Deemed to be University) Departm.nt of m.them.tics School of Chemical Engineering and Physical SciencesLovely Professional University Jadara University Research Center Jadara University Applied Science Research Center Applied Science Private University Departm.nt of m.them.tics and Inform.tion Technologies Tashkent State Pedagogical University Departm.nt of m.chanics and Engineering Science Peking University

The therm.l nanofluids have garnered widespread attention for their use in m.ltiple therm.l system., including heating processes, sustainable energy, and nuclear reactions. Research on nanofluids has revealed that the therm.l efficiencies of such m.terials are adversely affected by various therm.l features. The purpose of the current work.is to dem.nstrate the therm.l analysis of Jeffrey nanofluids with the suspension of m.croorganism. in the presence of variable therm.l sources. The variable effects of therm.l conductivity, Brownian diffusivity, and m.tile density are utilized. The investigated m.del also reveals the contributions of radiation phenom.na and chem.cal reactions. A porous, saturated, m.ving surface with a suction phenom.non prom.tes flow. The m.deling of the problem.is based on the im.lem.ntation of the Cattaneo-Christov *** convective therm.l constraints are used to prom.te the heat transfer features. A sim.lified form.of the governing m.del is treated with the assistance of a shooting technique. The physical effects of different param.ters for the problem.are presented. The current problem.justifies its applications in heat transfer, coating processes, heat exchangers, cooling system. in m.croelectronics, solar system., chem.cal processes, etc.

关键词： Jeffrey nanofluid bioconvection effect variable therm.l consequence chem.cal reaction num.rical sim.lation O357 76Rxx

Enhancing Classification Algorithm.Recom.endation in Autom.ted m.chine Learning: A m.ta-Learning Approach Using m.ltivariate Sparse Group Lasso

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Com.uter m.deling in Engineering & Sciences 2025年第2期142卷 1611-1636页

作者： Irfan khan Xianchao Zhang Ram.sh k.m.r Ayyasam. Saadat m.Alhashm. Azizur Rahim School of Software Dalian University of TechnologyDalian116620China Faculty of Inform.tion and Com.unication Technology Universiti Tunku Abdul RahmanKampar31900Malaysia College of Com.uting and Inform.tics University of SharjahSharjah27272United Arab Emirates Departm.nt of Com.uter System. Engineering University of Engineering and Applied SciencesSwat19200Pakistan

The rapid growth of m.chine learning(m.)across fields has intensified the challenge of selecting the right algorithm.for specific task.,k.own as the Algorithm.Selection Problem.ASP).Traditional trial-and-error m.thods have becom. im.ractical due to their resource *** m.chine Learning(Autom.)system. autom.te this process,but often neglect the group structures and sparsity in m.ta-features,leading to inefficiencies in algorithm.recom.endations for classification *** paper proposes a m.ta-learning approach using m.ltivariate Sparse Group Lasso(m.GL)to address these *** m.thod m.dels both within-group and across-group sparsity am.ng m.ta-features to m.nage high-dim.nsional data and reduce m.lticollinearity across eight m.ta-feature *** Fast Iterative Shrink.ge-Thresholding Algorithm.FISTA)with adaptive restart efficiently solves the non-sm.oth optim.zation *** validation on 145 classification datasets with 17 classification algorithm. shows that our m.ta-learning m.thod outperform. four state-of-the-art approaches,achieving 77.18%classification accuracy,86.07%recom.endation accuracy and 88.83%norm.lized discounted cum.lative gain.

关键词： m.ta-learning m.chine learning autom.ted m.chine learning classification m.ta-features

Regression analysis of squeezing-induced hybrid nanofluid flow in Darcy-Forchheim.r porous m.dium

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Applied m.them.tics and m.chanics(English Edition) 2025年第1期46卷 193-208页

作者： k.m.HAm.AD m.SARFRAZ Departm.nt of Hum.nities and Sciences School of Electrical Engineering and Computer Science National University of Sciences and Technology Departm.nt of m.them.tics Quaid-i-Azam University

This article presents a m.them.tical m.del addressing a scenario involving a hybrid nanofluid flow between two infinite parallel plates. One plate rem.ins stationary, while the other m.ves downward at a squeezing velocity. The space between these plates contains a Darcy-Forchheim.r porous m.dium. A m.xture of water-based fluid with gold(Au) and silicon dioxide(Si O2) nanoparticles is form.lated. In contrast to the conventional Fourier's heat flux equation, this study em.loys the Cattaneo-Christov heat flux equation. A uniform.m.gnetic field is applied perpendicular to the flow direction, invok.ng m.gnetohydrodynam.c(m.D) effects. Further, the m.del accounts for Joule heating, which is the heat generated when an electric current passes through the fluid. The problem.is solved via NDSolve in m.THEm.TICA. Num.rical and statistical analyses are conducted to provide insights into the behavior of the nanom.terials between the parallel plates with respect to the flow, energy transport, and sk.n *** findings of this study have potential applications in enhancing cooling system. and optim.zing therm.l m.nagem.nt strategies. It is observed that the squeezing m.tion generates additional pressure gradients within the fluid, which enhances the flow rate but reduces the frictional drag. Consequently, the fluid is pushed m.re vigorously between the plates, increasing the flow velocity. As the fluid experiences higher flow rates due to the increased squeezing effect, it spends less tim. in the region between the plates. The therm.l relaxation, however, abruptly changes the tem.erature, leading to a decrease in the tem.erature fluctuations.

关键词： convective boundary condition Darcy-Forchheim.r m.dium hybrid nanofluid Joule heating m.gnetohydrodynam.c (m.D) num.rical solution O175.2 O361 regression analysis squeezing flow

Honeycom.-spiderweb-inspired self-sim.lar hybrid cellular structures for im.act applications

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Defence Technology(防务技术) 2025年第1期43卷 182-200页

作者： k.Tewari m.k.Pandit m.m.m.hapatra P.R.Budarapu School of m.chanical Sciences Indian Institute of Technology BhubaneswarBhubaneswar752050India

Inspired by nature's self-sim.lar designs,novel honeycom.-spiderweb based self-sim.lar hybrid cellular structures are proposed here for efficient energy absorption in im.act *** energy absorption is enhanced by optim.zing the geom.try and topology for a given *** proposed hybrid cellular structure is arrived after a thorough analysis of topologically enhanced self-sim.lar *** optim.zed cell designs are rigorously tested considering dynam.c loads involving crush and high-velocity bullet ***,the influence of thick.ess,radial connectivity,and order of patterning at the unit cell level are also *** m.xim.m.crushing efficiency attained is found to be m.re than 95%,which is significantly higher than m.st existing traditional *** on,the first and second-order hierarchical self-sim.lar unit cell designs developed during crush analysis are used to prepare the cores for sandwich *** tests are perform.d on the developed sandwich structures using the standard 9-m. *** influence of m.ltistaging on im.act resistance is also investigated by m.intaining a constant total thick.ess and m.ss of the sandwich ***,in order to avoid layer-wise weak.zones and hence,attain a uniform.out-of-plane im.act strength,off-setting the designs in each stage is *** sandwich structures with first and second-order self-sim.lar hybrid cores are observed to withstand im.act velocities as high as 170 m.s and 270 m.s,respectively.

关键词： Sandwich structures Honeycom.-spider web inspired Self-sim.lar hierarchy Crush analysis High-velocity im.act Strong and weak.zones m.ltistaging

Robust-optim.l control of electrom.gnetic levitation system.with m.tched and unm.tched uncertainties: experim.ntal validation

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CONTROL THEORY AND TECHNOLOGY 2025年第1期23卷 28-48页

作者： Pandey, Am.t Adhyaru, Dipak.m. Nirm. Univ Inst Technol Dept Elect & Instrumentat Engn Ahmadabad 382481 Gujarat India

The electrom.gnetic levitation system.(Em.S) serves as the m.st im.ortant part of any m.gnetic levitation system. However, its characteristics are defined by its highly nonlinear dynam.cs and instability. Furtherm.re, the uncertainties in the dynam.cs of an electrom.gnetic levitation system.m.k. the controller design m.re difficult. Therefore, it is necessary to design a robust control law that will ensure the system.s stability in the presence of these uncertainties. In this fram.work. the dynam.cs of an electrom.gnetic levitation system.are addressed in term. of m.tched and unm.tched uncertainties. The robust control problem.is translated into the optim.l control problem. where the uncertainties of the electrom.gnetic levitation system.are directly reflected in the cost function. The optim.l control m.thod is used to solve the robust control problem. The solution to the optim.l control problem.for the electrom.gnetic levitation system.is indeed a solution to the robust control problem.of the electrom.gnetic levitation system.under m.tched and unm.tched uncertainties. The sim.lation and experim.ntal results dem.nstrate the perform.nce of the designed control schem.. The perform.nce indices such as integral absolute error (IAE), integral square error (ISE), integral tim. absolute error (ITAE), and integral tim. square error (ITSE) are com.ared for both uncertainties to showcase the robustness of the designed control schem..

关键词： Nonlinear system Robust control Optim.l control HJB equation Lyapunov stability Electrom.gnetic levitation system