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A Compact Difference Scheme for Time-Space Fractional Nonlinear Diffusion-Wave Equations with Initial Singularity

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Advances in Applied Mathematics and Mechanics 2024年第1期16卷 146-163页

作者： Emadidin Gahalla Mohmed Elmahdi sadia Arshad Jianfei Huang College of Mathematical Sciences Yangzhou UniversityYangzhouJiangsu 225002China Faculty of Education University of KhartoumKhartoum P.O.Box 321Sudan COMSATS University Islamabad Lahore CampusPakistan

In this paper,we present a linearized compact difference scheme for onedimensional time-space fractional nonlinear diffusion-wave equations with initial boundary value *** initial singularity of the solution is considered,which often generates a singular source and increases the difficulty of numerically solving the *** Crank-Nicolson technique,combined with the midpoint formula and the second-order convolution quadrature formula,is used for the time *** increase the spatial accuracy,a fourth-order compact difference approximation,which is constructed by two compact difference operators,is adopted for spatial ***,the unconditional stability and convergence of the proposed scheme are strictly established with superlinear convergence accuracy in time and fourth-order accuracy in ***,numerical experiments are given to support our theoretical results.

关键词： Fractional nonlinear diffusion-wave equations finite difference method fourth-order compact operator stability convergence

China-Pakistan Economic Corridor in Balochistan: Views, Challenges and Prospects

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China-Pakistan Economic Corridor in Balochistan: Views, Chal...

作者： sadia NOUREEN 华东师范大学

学位级别：硕士

The China Pakistan Economic Corridor(CPEC)is one of the most important constituents of One-Belt One-Road initiatives(OBOR)of Chinese *** is being deemed as a game changer for the whole region because of the way it will enhance trade related activities and open doors for foreign *** Balochistan province which is located in Pakistan has a key role in CPEC due to its Gawadar port and its strategic location in the mouth of Gulf States,it is of critical importance to have a closer look on the pros and cons of this *** this in mind,the aim of this thesis is to examine the role of Balochistan in CPEC and the views of the Baloch people about this $54 billion project.A major issue is the province is lacking basic facilities,which people from other parts of Pakistan are already enjoying in terms of development,industrialization and job *** goal of this study is to have a critical analysis of the effects of CPEC on different sectors of Balochistan including the economic,industrial sector,and *** addition,this paper will discuss how this project will be effective in boosting the lives of the people of *** international political actors like India,US,Iran and Afghanistan have been considered as well and whether they will contribute to positive developments in the region or if their involvement will lead to more *** this context,a detailed study has been conducted regarding the voices and concerns of the inhabitants of Balochistan about *** is observed that the concerns of the people of Balochistan are genuine to a large extent because of the long history of neglect in *** positive and negative views of the inhabitants belonging to different segments of life have given this project a unique *** people,which are involved in business sector consider CPEC as a game changer and believe CPEC is bringing better future business opportunities for the *** some people such as edu

关键词： One Belt One Road(OBOR) China Pakistan Economic Corridor(CPEC) Gawadar Port Balochistan

The Effect of Motivation on Employee Performance and Job Satisfaction of Construction Workers in GETFund Educational Infrastructure Projects

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The Effect of Motivation on Employee Performance and Job Sat...

作者： sadia IBRAHIM 山东大学

学位级别：硕士

员工是建筑行业内每个组织的重要资源。组织在很大程度上依赖于员工的服务来实现其组织目标。建筑企业需要特别注重确保员工的投入以实现其目标,因此必须激励员工在工作中付出更多努力。当前很多实证研究表明激励能够帮助企业提升竞争... 详细信息

员工是建筑行业内每个组织的重要资源。组织在很大程度上依赖于员工的服务来实现其组织目标。建筑企业需要特别注重确保员工的投入以实现其目标,因此必须激励员工在工作中付出更多努力。当前很多实证研究表明激励能够帮助企业提升竞争力。员工在工作场所的积极性和工作满意度是不可分割的,因此激励、工作满意度等已被视为人力资源管理人员用来提高员工绩效的重要工具。本论文根据马斯洛的需求层次理论、期望理论、范围情感理论和相关文献分析提出了加纳GETFund教育基础设施项目中建筑工人员工激励、员工满意度和工作绩效之间的关系假设,并利用基于李克特5点量表的结构化问卷收集到来自加纳GETFund教育基础设施项目建设的250名员工的样本量。研究采用了 STATA(15.0)和SPSS 20.0版统计软件对数据进行分析,首先,进行描述性统计分析、相关性分析、信度和效度检验、多重共线性检验和模型适应度检验等,以确保量表的合理性;然后,采用线性回归分析以对变量之间的关系进行估计,从而验证假设是否能够成立。研究结果表明,在GETFund教育基础设施项目背景下,员工激励和员工绩效之间存在很强的关系,员工激励对员工绩效有显著影响。本研究进一步评估了加纳GETFund教育基础设施项目中建筑工人的激励和工作满意度之间的关系,表明员工激励对工作满意度有显著影响,从而为加纳建筑业提供了实证证据。本研究还评估了加纳GETFund教育基础设施项目中建筑工人的工作满意度与员工绩效之间的关系。结果还表明,工作满意度对加纳建筑部门的员工绩效有显着的正向影响。根据论文的结果,建议建筑业的利益相关者和管理者,特别是GETFund教育基础设施项目,提供有效的员工激励政策,建立强大的工作满意度,以提高员工绩效。

关键词：员工激励工作满意度员工业绩加纳教育信托基金(GETFund)

ALTERNATING DIRECTION IMPLICIT SCHEMES FOR THE TWO-DIMENSIONAL TIME FRACTIONAL NONLINEAR SUPER-DIFFUSION EQUATIONS

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Journal of Computational Mathematics 2019年第3期37卷 297-315页

作者： Jianfei Huang Yue Zhao sadia Arshad Kuangying Li Yifa Tang College of Mathematical Sciences Yangzhou UniversityYangzhou 225002China LSEC ICMSECAcademy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190China School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100049China COMSATS Institute of Information Technology LahoTePakistan McDougall School of Petroleum Engineering The University of TulsaTulsaOK 74104USA

As is known,there exist numerous alternating direction implicit(ADI)schemes for the two-dimensional linear time fractional partial differential equations(PDEs).However,if the ADI schemes for linear problems combined with local linearization techniques are applied to solve nonlinear problems,the stability and convergence of the methods are often not *** this paper,two ADI schemes are developed for solving the two-dimensional time fractional nonlinear super-diffusion equations based on their equivalent partial integrodifferential *** these two schemes,the standard second-order central difference approximation is used for the spatial discretization,and the classical first-order approximation is applied to discretize the Riemann-Liouville fractional integral in *** solvability,unconditional stability and L2 norm convergence of the proposed ADI schemes are proved *** convergence order of the schemes is 0(τ+hx^2+hy^2),where τ is the temporal mesh size,hx and hy are spatial mesh sizes in the x and y directions,***,numerical experiments are carried out to support the theoretical results and demonstrate the performances of two ADI schemes.

关键词： Time fractional super-diffusion equation Nonlinear system ADI schemes Stability Convergence

Structure of [Co(im)6]SiF6：Short Hydrogen Bonds Involving SiF62- Ions

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Chinese Journal of Structural Chemistry 2017年第6期36卷 965-970页

作者： NAZIR sadia ARIF Muhammad RASHID Muhammad Abid WHITWOOD Adrian Charles Department of Chemistry Govt. College Women University Faisalabad 3800 Pakistan Institute of Chemical Sciences Bahhauddin Zakariya University Multan 60800 Pakistan Department of Chemistry University of Agriculture Faisalabad 38040 Pakistan Department of Chemistry University of York Heslington York YO10 5DD UK

A new complex C（18）H（24）CoF6N（12）Si has been synthesized by the reaction of cobalt（II） fluoride tetrahydrate with imidazole in a glass vessel. SiF62-was generated by in situ reaction of fluoride on silica. This complex has been characterized by different techniques such as elemental analysis, IR studies, magnetic measurements, electronic absorption measurements and single-crystal X-ray structure determination. The crystals are hexagonal in the R-3 space group, with a = 13.225（6）, b = 13.225（6）, c = 12.517（11） A, and g = 120°. In complex [Co（im）6]SiF6, the cobalt atom is six-coordinated to adopt a regular octahedral geometry and the SiF62-ion acts as the counter anion. The crystal displays a network structure and SiF62- bridging hexagram formation by N-（39）···F-Si interactions between imdazole and SiF62-. SiF62-plays an important role in assembling the supramolecular aggregates.

关键词： anion binding imidazole SiF62- hydrogen bonds transitionmetal fluoride complexes

A Study of Cellular Neural Networks with Vertex-Edge Topological Descriptors

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Computers, Materials & Continua 2022年第2期70卷 3433-3447页

作者： sadia Husain Muhammad Imran Ali Ahmad Yasir Ahmad Kashif Elahi Country College of Computer Science&Information Technology Jazan UniversityJazanSaudi Arabia Department of Mathematical Sciences United Arab Emirates UniversityAl AinUnited Arab Emirates Deanship of E-learning and Information Technology Jazan UniversityJazanSaudi Arabia

The CellularNeuralNetwork(CNN)has various parallel processing applications,image processing,non-linear processing,geometric maps,highspeed *** is an analog paradigm,consists of an array of cells that are interconnected *** can be arranged in different *** cell has an input,a state,and an *** cellular neural network allows cells to communicate with the neighbor cells *** can be represented graphically;cells will represent by vertices and their interconnections will represent by *** chemical graph theory,topological descriptors are used to study graph structure and their biological *** is a single value that characterizes the whole *** this article,the vertex-edge topological descriptors have been calculated for cellular neural *** can be used for cellular neural network of any *** will enhance the applications of cellular neural network in image processing,solving partial differential equations,analyzing 3D surfaces,sensory-motor organs,and modeling biological vision.

关键词： Cellular neural networks degree topological indices

Perfluoroalkane acids in human milk under the global monitoring plan of the Stockholm Convention on Persistent Organic Pollutants(2008-2019)

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Frontiers of Environmental Science & Engineering 2022年第10期16卷 91-104页

作者： Heidelore Fiedler Mohammad sadia Thomas Krauss Abeer Baabish Leo W.Y.Yeung School of Science and Technology MTM Research Centre(O)rebro UniversitySE-70182(O)rebroSweden Funda(c)ao Oswaldo Cruz(FIOCRUZ) Instituto Nacional de Controle de Qualidade em Saúde(INCQS)Avenida Brasil4365-Manguinhos EP 21.040-900Rio de Janeiro-RJBrazil

Within the global monitoring plan(GMP)established by article 16 of the Stockholm Convention on Persistent Organic Pollutants,perfluorooctane sulfonic acid(PFOS),perfluorooctanoic acid(PFOA),and perfluorohexane sulfonic acid(PFHxS)are recommended for analysis in core matrices to assess occurrence and changes geographically and with *** 101 samples consisting of 86 national pools and 15 pools from States in Brazil obtained between 2008 and 2019,PFHxS was detected in 17%of the national pools and none in *** and PFOS had a detection frequency of 100%and 92%,*** perfluoroalkane substances(PFAS)had either low detection frequencies and median values of zero(carboxylic acids C4-C11;except PFOA)or could not be quantified in any sample(sulfonic acids,C4-C10,and long-chain carboxylic acids,C_(12)-C_(14)).Correlation between PFOA and PFOS was moderately(r=0.58).Whereas median values were almost identical(18.9 pg/g *** PFOS;18.6 pg/g *** PFOA),PFOS showed larger ranges(<6.2 pg/g f.w.-212 pg/g f.w.)than PFOA(<6.2 pg/g f.w.-63.4 pg/g f.w.).It was shown that wealthier countries had higher PFOA concentrations than poorer *** difference in concentrations was found for samples collected in countries having or not having ratified the Stockholm Convention amendments to list PFOS or *** goal to achieve 50%decrease in concentrations within ten years was met by Antigua and Barbuda,Kenya,and Nigeria for PFOS and by Antigua and Barbuda for *** a few cases,increases were observed;one country for PFOS,four countries for PFOA.

关键词： Human biomonitoring Human breast milk LC-MS/MS analysis Lifestyle parameters

Future of mental health in the metaverse

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General Psychiatry 2022年第4期35卷 224-229页

作者： sadia Suhail Usmani Medha Sharath Meghana Mehendale Department of Psychiatry Dow University of Health SciencesKarachiPakistan Department of Medicine Insight Hospital&Medical Center ChicagoChicagoIllinoisUSA Department of Psychiatry Bangalore Medical College and Research InstituteBangaloreKarnatakaIndia Department of Psychiatry Smolensk State Medical UniversitySmolenskRussian Federation

The metaverse and non-fungible tokens(NFTs)were some of the hottest tech terms in 2021,according to a Google Trends *** review aims to describe the metaverse and NFTs in the context of their potential application in the treatment of mental health *** in technology have been changing human lives at an ever-increasing ***,also known as the threedimensional(3D)internet,is the convergence of virtual reality(VR)and physical reality in a digital *** could potentially change the internet as we know it,with NFTs as the key building blocks in the new expansive virtual *** immersive 3D virtual world boasts the features of the real world with the added ability to change the surrounding environment according to individual needs and ***,augmented reality(AR)and mixed reality(MR)have been employed as tools in the treatment of various mental health disorders for the past *** have reported positive results on their effectiveness in the diagnosis and treatment of mental health ***/AR/MR have been hailed as a solution to the acute shortage of mental health professionals and the lack of access to mental ***,on the flip side,young adults tend to spend a significant amount of time playing 3D immersive games and using social media,which can lead to insecurity,anxiety,depression,and behavioural ***,endless scrolling through social media platforms negatively affects individuals'attention span as well as aggravating the symptoms of adolescents with attention deficit hyperactivity *** aimed to explore the ramifications of expanding applications of the metaverse on mental *** far,no other review has explored the future of mental health in the context of the metaverse.

关键词： token diagnosis reality

A superlinear numerical scheme for multi-term fractional nonlinear ordinary differential equations

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International Journal of Modeling, Simulation, and Scientific Computing 2020年第2期11卷 100-114页

作者： Jingna Zhang Haobo Gong sadia Arshad Jianfei Huang College of Mathematical Sciences Yangzhou University Yangzhou 225002China COMSATS University Islamabad Lahore CampusPakistan

In this paper,we present a superlinear numerical method for multi-term fractional nonlinear ordinary differential equations(MTFNODEs).First,the presented problem is equivalently transformed into its integral form with multi-term Riemann-Liouville ***,the compound product trapezoidal rule is used to approximate the fractional ***,the unconditional stability and convergence with the order 1+αN−1−αN−2 of the proposed scheme are strictly established,whereαN−1 andαN−2 are the maximum and the second maximum fractional indexes in the considered MTFNODEs,***,two numerical examples are provided to support the theoretical results.

关键词： Multi-term fractional ordinary differential equations nonlinear system numerical method stability convergence