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Computer Modeling in Engineering & Sciences 2023年第5期135卷 1229-1254页

作者： Sunisa.Junnumtuam sa.Aat Niwitpong Suparat Niwitpong Department ofApplied Statistics Faculty of Applied ScienceKing Mongkut’sUniversity of TechnologyNorth BangkokBangkok10800Thailand

A new three-parameter discrete distribution called the zero-inflated cosine geometric(ZICg)distribution is proposed for the first time *** can be used to analyze over-dispersed count data with excess *** basic statistical properties of the new distribution,such as the moment generating function,mean,and variance are ***,confidence intervals are constructed by using the wald,Bayesian,and highest posterior density(HPD)methods to estimate the true confidence intervals for the parameters of the ZICg *** efficacies were investigated by using both simulation and real-world data comprising the number of daily COVID-19 positive cases at the Olympic games in Tokyo *** results show that the HPD interval performed better than the other methods in terms of coverage probability and average length in most cases studied.

关键词： Bayesian analysis confidence interval gibbs sa.pling random-walk metropolis zero-inflated count data

POSITIVE SOLUTIONS FOR SINgULAR BVPs ON THE POSITIVE HALF-LINE ARISINg FROM EPIDEMIOLOgY AND COMBUSTION THEORY

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Acta Mathematica Scientia 2012年第2期32卷 672-694页

作者： Smaïl Djebali Ouiza sa.fi 闫宝强 Department of Mathematics E.N.S.P.O.Box 9216050 Kouba.AlgiersAlgeria Department of Economics Faculty of Economic and Management SciencesAlgiers UniversityAlgeria Department of Mathematics Shandong Normal University

In this work, we are concerned with the existence and multiplicity of positive solutions for singular boundary value problems on the half-line. Two problems from epi- demiology and combustion theory set on the positive half-line are investigated upper and lower solution techniques combined with fixed point index on cones in priate Banach spaces. The results complement recent ones in the literature. We use appropriate Banach spaces. The results complement recent ones in the literature.

关键词： Fixed points index positive solution singular problem cone lower andupper solution half-line

An Abstract Reachability Approach by Combining HOL Induction and Multiway Decision graphs

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Journal of Computer Science & Technology 2009年第1期24卷 76-95页

作者： sa.ed Abed Otmane Ait Mohamed ghiath Al-sa.mane ECE Department Concordia UniversityMontrealCanada

In this paper, we provide a necessa.y infrastructure to define an abstract state exploration in the HOL theorem prover. Our infrastructure is based on a deep embedding of the Multiway Decision graphs （MDgs） theory in HOL. MDgs generalize Reduced Ordered Binary Decision Diagrams （ROBDDs） to represent and manipulate a subset of first-order logic formulae. The MDgs embedding is based on the logical formulation of an MDg as Directed Formulae （DF）. Then, the MDgs operations are defined and the correctness proof of each operation is provided. The MDg teachability algorithm is then defined as a conversion that uses our MDg theory within HOL. Finally, a set of experimentations over benchmark circuits has been conducted to ensure the applicability and to measure the performance of our approach.

关键词： HOL theorem prover multiway decision graphs correctness reachability analysis

REVISITINg THE SIMILAR PROCESS TO ENgINEER THE CONTEMPORARY SYSTEMS

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Journal of Systems Science and Systems Engineering 2010年第3期19卷 321-350页

作者： Ana Luísa.RAMOS José Vasconcelos FERREIRA Jaume BARCELó gOVCOPP-Department of Economics Management and Industrial EngineeringUniversity of Aveiro Department of Statistics and Operations Research Technical University of Catalonia

This paper addresses the present-day context of Systems Engineering, revisiting and setting up an updated framework for the SIMILAR process in order to use it to engineer the contemporary systems. The contemporary world is crowded of large interdisciplinary complex systems made of other systems, personnel, hardware, software, information, processes, and facilities. An integrated holistic approach is crucial to develop these systems and take proper account of their multifaceted nature and numerous interrelationships. As the system＇s complexity and extent grow, the number of parties involved （stakeholders and shareholders） usually also raises, bringing to the interaction a considerable amount of points of view, skills, responsibilities, and interests. The Systems Engineering approach aims to tackle the complex and interdisciplinary whole of those socio-technical systems, providing the means to enable their successful realization. Its exploitation in our modern world is assuming an increasing relevance noticeable by emergent standards, academic papers, international conferences, and post-graduate programmes in the field. This work aims to provide ＂the picture＂ of modern Systems Engineering, and to update the context of the SIMILAR process model in order to use this renewed framework to engineer the challenging contemporary systems. The emerging trends in the field are also pointed-out with particular reference to the Model-Based Systems Engineering approach.

关键词： SIMILAR process systems engineering standards MBSE

Transverse momentum balance of dijets in Xe+Xe collisions at the LHC

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Nuclear Science and Techniques 2024年第7期35卷 137-146页

作者： Yao Li Shu-wan Shen sa.wa.g Ben-Wei Zhang Key Laboratory of Quark&Lepton Physics(MOE)and Institute of Particle Physics Central China Normal UniversityWuhan430079China College of Science China Three Gorges UniversityYichang443002China Center for Astronomy and Space Sciences and Institute of Modern Physics China Three Gorges UniversityYichang443002China guangdong-Hong Kong Joint Laboratory of Quantum Matter Guangdong Provincial Key Laboratory of Nuclear ScienceSouthern Nuclear Science Computing CenterSouth China Normal UniversityGuangzhou510006China

We present a theoretical study of the medium modifications of the p_(T)balance (x_(J)) of dijets in Xe+Xe collisions at■.The initial production of dijets was carried out using the POWHEg+PYTHIA8 prescription,which matches the next-toleading-order (NLO) QCD matrix elements with the parton shower (PS) *** SHELL model described the in-medium evolution of nucleus–nucleus collisions using a transport *** theoretical results of the dijet xJin the Xe+Xe collisions exhibit more imbalanced distributions than those in the p+p collisions,consistent with recently reported ATLAS *** utilizing the Interleaved Flavor Neutralisa.ion,an infrared-and-collinear-sa.e jet flavor algorithm,to identify the flavor of the reconstructed jets,we classify dijets processes into three categories:gluon–gluon (gg),quark–gluon (qg),and quark–quark (qq),and investigated the respective medium modification patterns and fraction changes of the gg,qg,and qq components of the dijet sa.ple in Xe+Xe *** is shown that the increased fraction of qg component at a small x_(J)contributes to the imbalance of the dijet;in particular,the q_(1)g_(2)(quark-jet-leading) dijets experience more significant asymmetric energy loss than the g_(1)q_(2)(gluon-jet-leading) dijets traversing the *** comparing the■of inclusive,■ dijets in Xe+Xe collisions,we observe■.Moreover,ρ_(Xe),P_(b),the ratios of the nuclear modification factors of dijets in Xe+Xe to those in Pb+Pb,were calculated,which indicates that the yield suppression of dijets in Pb+Pb is more pronounced than that in Xe+Xe owing to the larger radius of the lead nucleus.

关键词： Heavy-ion collisions Quark-gluon plasma Jet quenching Transverse momentum balance

From Self-assembled Monolayers to Chemically Patterned Brushes:Controlling the Orientation of Block Copolymer Domains in Films by Substrate Modification

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Chinese Journal of Polymer Science 2016年第6期34卷 659-659,660-678页

作者： Xiao-sa.Jin Yuan-yuan Pang 季生象 Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences University of Chinese Academy of Sciences

Block copolymer lithography is emerging as one of the leading technologies for patteming nanoscale dense features. In almost all potential applications of this technology, control over the orientation of cylindrical and lamellar domains is required for pattern transfer from the block copolymer film. This review highlights the state-of-art development of brushes to modify the substrates to control the assembly behaviors of block copolymers in films. Selected important contributions to the development of self-assembled monolayers, polymer brushes and mats, and chemically patterned brushes are discussed.

关键词： Self-assembly Block copolymer Neutral brush Chemical pattern Wetting behavior.

Kinetic modeling of high-temperature oxidation of pure Mg

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Journal of Magnesium and Alloys 2020年第3期8卷 819-831页

作者： sa.Ma Fangzhou Xing Na Ta Lijun Zhang State Key Laboratory of Powder Metallurgy Central South UniversityChangshaHunan 410083P.R.China Max-Planck-Institut fiir Eisenforschung gmbH Max-Planck-Straβe 140237DusseldorfGermany

A variety of experimental tracer diffusivities of Mg and O in magnesium oxide available in the literature were first *** mobilities including bulk and short-circuit diffusion of Mg and O were then obtained by means of the CALPHAD(Calculation of Phase Diagram)***,the diffusion-controlled kinetic model of oxidation in a gas-MgO-Mg environment was developed based on the moving boundary model and Fick's law,coupling with the modified thermodynamic description of MgO.A mathematical expression for parabolic rate constant kp of the oxide scale was derived for magnesia and correlated with the thermodynamic and diffusion kinetic *** evaluated kp results were in line with the experimental ***,the oxidation process of pure magnesium at 673 K was model-predicted,and the predicted evolution of the oxide thicknesses agreed very well with the experimental *** was indicated that the grain boundaries diffusion of magnesium cations predominated the high temperature oxidation process.

关键词： MgO Diffusion Oxidation Atomic mobility CALPHAD wagner's model

Adaptive Partial Task Offloading and Virtual Resource Placement in SDN/NFV-Based Network Softwarization

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Computer Systems Science & Engineering 2023年第5期45卷 2141-2154页

作者： Prohim Tam sa.Math Seokhoon Kim Department of Software Convergence Soonchunhyang UniversityAsan31538Korea Department of Computer Software Engineering Soonchunhyang UniversityAsan31538Korea

Edge intelligence brings the deployment of applied deep learning(DL)models in edge computing systems to alleviate the core backbone network *** setup of programmable software-defined networking(SDN)control and elastic virtual computing resources within network functions virtualization(NFV)are cooperative for enhancing the applicability of intelligent edge *** offer advancement for multi-dimensional model task offloading in edge networks with SDN/NFV-based control softwarization,this study proposes a DL mechanism to recommend the optimal edge node selection with primary features of congestion windows,link delays,and allocatable bandwidth *** partial task offloading policy considered the DL-based recommendation to modify efficient virtual resource placement for minimizing the completion time and termination drop *** optimization problem of resource placement is tackled by a deep reinforcement learning(DRL)-based policy following the Markov decision process(MDP).The agent observes the state spaces and applies value-maximized action of available computation resources and adjustable resource allocation *** reward formulation primarily considers taskrequired computing resources and action-applied allocation *** defined policies of resource determination,the orchestration procedure is configured within each virtual network function(VNF)descriptor using topology and orchestration specification for cloud applications(TOSCA)by specifying the allocated *** simulation for the control rule installation is conducted using Mininet and Ryu SDN *** delay and task delivery/drop ratios are used as the key performance metrics.

关键词： Deep learning partial task offloading software-defined networking virtual machine virtual network functions

Tuning the Molecular Structure and Transport Property of[bmim][Tf_(2)N]Using Electric Field

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Journal of Thermal Science 2022年第4期31卷 1076-1083页

作者： wa.g Tao LIU Xiangyang XUE sa.LIU Hui HE Maogang Key Laboratory of Thermal Fluid Science and Engineeringof MOE School of Energy and Power EngineeringXi'an Jiaotong UniversityXi'an 710049China

In this work,the effects of electric field on the microstructure and transport property of[bmim][Tf_(2)N]were simulated by molecular dynamics method to provide regulating strategy of required ionic *** simulation results showed that[bmim]^(+) and [Tf_(2)N]^(–)move slowly along the positive and negative direction of the electric field,respectively,and anions and cations are still arranging alternatively under weak electric field which has slight influence on the electrostatic force in[bmim][Tf_(2)N].When the electric field is strong,it has significant influence on the electrostatic force of[bmim][Tf_(2)N],which results the aggregation of[bmim]^(+) and [Tf_(2)N]^(–) and the appearance of large hole inside[bmim][Tf_(2)N].In addition,with the increase of electric field intensity,the density of[bmim][Tf_(2)N] increases,which means the free volume inside[bmim][Tf_(2)N]become ***,the thermal conductivity and viscosity exhibit anisotropy.

关键词： ionic liquid molecular structure transport property electric field

Elderberry (sa.bucus nigra L.) wine as a novel potential functional food product

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Food Bioscience 2022年第6期50卷 513-522页

作者： Milena Terzić Tatjana Majkić Ivana Beara gökhan Zengin Uroš Miljić sa.a Đurović Adriano Mollica Marija Radojković Faculty of Technology Novi sa. University of Novi SadBulevar cara Lazara 121000Novi SadSerbia Faculty of Sciences University of Novi SadTrg Dositeja Obradovića 321000Novi SadSerbia Science Faculty Selcuk UniversityDepartment of BiologyCampus42130KonyaTurkey Institute of general and Physical Chemistry Studentski trg 12/V11158BelgradeSerbia Department of Pharmacy University “G.d’Annunzio” of Chieti-Pescara66100ChietiItaly

Throughout human civilization, elderberry (sa.bucus nigra L.) has been used as a traditional drug and addition to various dishes. Although it is a widespread plant species, it is still being researched and rarely used to obtain new products. In this study, we focused on the chemical and phytochemical composition and biological and pharmacological effects of elderberry wine, obtained by applying different temperature treatments (without temperature treatment – W1;60 °C, 5 min – W2;60 °C, 10 min – W3;and 70 °C, 5 min – W4 ). HPLC-MS/MS and spectrophotometric techniques determined the chemical and phytochemical profiles of obtained wines. The main compounds in analyzed wines were p-Hydroxybenzoic, protocatechuic and chlorogenic acids, quercetin, quercetin-3-O-hexoside, and rutin . To assess the biological potential, antioxidant, neuroprotective (acetyl- and butyrylcholinesterase inhibition), antityrosinase, and antidiabetic (amylase inhibition and glucosidase inhibition) abilities were examined. Wine W4 showed the strongest antioxidant activity, which correlated well with the high phenol content. The best inhibitory effect of β-glucosidase was observed in wine W3 . However, the most potent tyrosinase inhibitor was wine W4 . The presented results prove elderberry wine's high biological and industrial potential and open new avenues for formulating new products that could be brought to market.

关键词： sa.bucus nigra L. Elderberry wine Functional food Chemical composition Polyphenolic profile Biological activity