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A Hierarchal Clustered Based Proactive Caching in NDN-Based Vehicular Network

Computer Systems Science & Engineering 2023年第10期47卷 1185-1208页

作者： Muhammad Yasir Khan Muhammad Adnan jawaid iqbal Noor ul Amin Byeong-Hee Roh Jehad Ali Department of Computer Science&Information Technology Hazara University Mansehra21120Pakistan Department of Electronics Engineering Kookmin University Seoul Korea Faculty of Computing Riphah International University Islamabad Pakistan Department of AI Convergence Network Ajou UniversitySuwon16499Korea

An Information-Centric Network(ICN)provides a promising paradigm for the upcoming internet architecture,which will struggle with steady growth in data and changes in *** ICN architectures have been designed,including Named Data Networking(NDN),which is designed around content delivery instead of *** data is the central part of the ***,NDN was developed to get rid of the dependency on IP addresses and provide content *** is one of the major research dimensions for this upcoming internet *** research has been carried out to solve the mobility issues,but it still has problems like handover delay and packet loss ratio during real-time video streaming in the case of consumer and producer *** solve this issue,an efficient hierarchical Cluster Base Proactive Caching for Device Mobility Management(CB-PC-DMM)in NDN Vehicular Networks(NDN-VN)is proposed,through which the consumer receives the contents proactively after handover during the mobility of the *** a consumer moves to the next destination,a handover interest is sent to the connected router,then the router multicasts the consumer’s desired data packet to the next hop of neighboring ***,once the handover process is completed,consumers can easily get the content to the newly connected router.A CB-PCDMM in NDN-VN is proposed that improves the packet delivery ratio and reduces the handover delay aswell as cluster ***,the intra and inter-domain handover handling procedures in CB-PC-DMM for NDN-VN have been *** the validation of our proposed scheme,MATLAB simulations are *** simulation results show that our proposed scheme reduces the handover delay and increases the consumer’s interest satisfaction *** proposed scheme is compared with the existing stateof-the-art schemes,and the total percentage of handover delays is decreased by up to 0.1632%,0.3267%,2.3437%,2.3255%,and 3.7313%at the mobil

关键词： Vehicular network named data networking caching hierarchical architecture

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Quantum photodetachment of hydrogen negative ion in a harmonic potential subjected to static electric field

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Chinese Physics B 2019年第2期28卷 179-184页

作者： Azmat iqbal Kiran Humayun Sana Maqsood Saba jawaid Afaq Ahmad Amin Ur Rahman Bakht Amin Bacha Department of Physics The University of LahoreRaiwind Road CampusLahorePakistan Center of Excellence in Solid State Physics University of the PunjabLahorePakistan Department of Physics RIPHAH International University IslamabadPakistan Department of Physics University of Malakand Chakdara Dir(L)Pakistan

Photodetachment of negative ions has attracted immense interest owing to its fundamental nature and practical implications with regard to technology. In this study, we explore the quantum dynamics of the photodetachment cross section of negative ion of hydrogen H-in the perturbed one dimensional linear harmonic potential via static electric field. To this end,the quantum formula for total photodetachment cross section of the H-ion is derived by calculating the dipole matrix element in spherical coordinates. In order to obtain the detached electron wave function, we have solved the time-independent Schr¨odinger wave equation for the perturbed Hamiltonian of the harmonic oscillator in momentum representation. To acquire the corresponding normalized final state detached electron wave function in momentum space, we have employed an approach analogous to the WKB(Wenzel–Kramers–Brillouin) approximation. The resulting analytical formula of total photodetachment cross section depicts interesting oscillator structure that varies considerably with incident-photon energy,oscillator potential frequency, and electric field strength as elucidated by the numerical results. The current problem having close analogy with the Stark effect in charged harmonic oscillator may have potential implications in atomic and molecular physics and quantum optics.

关键词： photodetachment cross section harmonic oscillator potential Stark effect time-independent Schrodinger equation WKB approximation

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Effect of Alkali and Silane Treatments on Mechanical and Fibre-matrix Bond Strength of Kenaf and Pineapple Leaf Fibres

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Journal of Bionic Engineering 2016年第3期13卷 426-435页

作者： Mohammad Asim Mohammad jawaid Khalina Abdan Mohamad Ridzwan lshak Laboratory of Biocomposite Technology Institute of Tropieal Forestry and Forest Products (1NTR OP) Universiti Putra Malaysia Serdang 43400 Malaysia Department of Biological and Agricultural Engineering Faculty of Engineering Universiti Putra Malaysia Serdang 43400 Malaysia Department of Aerospace Engineering Universiti Putra Malaysia Serdang 43400 Malaysia

Natural fibres are very versatile materials, their properties vary with chemical composition and physical structure. The effects of alkali, silane and combined alkali and silane treatments on the mechanical （tensile）, morphological, and structural properties of Pine Apple Leave Fibres （PALF） and Kenaf Fibres （KF） were investigated with the aim to improve their com- patibility with polymer matrices. The effectiveness of the alkali and saline treatments in the removal of impurities from the fibre surfaces was confirmed by Scanning Electron Microscopy （SEM） and Fourier Transform Infrared spectrometry （FTIR） ob- servation. The morphological study of treated PALF and KF by SEM indicates that silane treated fibres have less impurities and lignin and hemicelluloses removed than those by other chemical treatments. Silane treated PALF and KF display better tensile strength than those of untreated, alkaline and NaOH-silane treated. Droplet test indicates that the lnterfacial Stress Strength （IFSS） of alkali and silane treated PALF and KF are enhanced whereas silane treated fibres display highest IFSS. It is assumed that fibre treatments will help to develop high performance KF and PALF reinforced polymer composites for industrial appli- cations.

关键词： pineapple leaves fibre kenaf fibre chemical treatment tensile properties structural properties droplet test

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Effects of Surface Treatments on Tensile, Thermal and Fibre-matrix Bond Strength of Coir and Pineapple Leaf Fibres with Poly Lactic Acid

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Journal of Bionic Engineering 2018年第6期15卷 1035-1046页

作者： Ramengmawii Siakeng Mohammad jawaid Hidayah Ariffin Mohd Sapuan Salit Higher Institution Centre of Excellence Wood and Tropical Fibre (HiCoE) Institute of Tropical Forestry and Forest Products ( INTROP) Universiti Putra Malaysia Serdang 43400 Malaysia Department of Chemical Engineering College of Engineering King Saud University Riyadh 11451 Kingdom of Saudi Arabia Department of Bioprocess Technology Faculty of Biotechnology and Biomoleeular Sciences Universiti Putra Malaysia Serdang 43400 Malaysia Department of Mechanical and Manufacturing Engineering Faculty of Engineering Universiti Putra Malaysia Serdang 43400 Malaysia

Coir Fibres （CF） and Pineapple Leaf Fibres （PALF） are valuable natural fibres which are abundantly available in Malaysia as agricultural wastes. The aim of this study is to investigate the effects of alkali （6%）, silane （2%）, and calcium hydroxide （6%） on tensile, morphological, thermal, and structural properties of CF and PALF to improve their interfacial bonding with Polylactic Acid （PLA） matrix. Scanning electron microscopy and Fourier transform infrared spectroscopy were used to observe the effectiveness of the chemical treat- ments in the removal of impurities. Alkali treated fibres yield the lowest fibre diameter and the highest Interfacial Stress Strength （IFSS）. Thermogravimetric Analysis （TGA） shows improved thermal stability in silane treated CF and alkali treated PALF. It is assumed that fibre treatments can help to develop biodegradable CF and PALF reinforced PLA biocomposites for industrial applications.

关键词： natural fibre surface treatment tensile properties fibre-matrix bond strength thermal properties

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A Study on Opportunities and Challenges for the Development of CPEC

A Study on Opportunities and Challenges for the Development ...

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作者： jawaid 山东大学

学位级别：硕士

The China-Pakistan Economic Corridor（CPEC）the latest venture in a history of bilateral economic cooperation,with a $46 billion investment in energy and infrastructure development in Pakistan is considered a game changer for Pakistan’s *** a flagship project of China’s One Belt One Road initiative,the corridor will connect Kashgar in Western China with the port of Gwadar in Pakistan on the Arabian Sea,serving as a gateway to the Middle East,Africa,and Central *** CPEC,in addition to boosting Pakistan’s economy and meeting China’s energy needs and development of its western region,is likely to bring stability in the region through economic ***,projects of such scale certainly face equally significant challenges and have opportunities for *** study examines challenges and opportunities which CPEC can offer to both *** that have the potential to affect the implementation of the project,including the unstable situation in Afghanistan,competing interests of immediate neighbors like India and Iran,especially India’s suspicions,and *** about the *** the other hand,opportunities include and cost-effective access to the Indian Ocean and further to the Middle East and Africa through Gwadar Port,and China aims to address the internal security concerns in its restive western region of Xinjiang through economic ***,US$46 billion offer a special opportunity to Pakistan to address some of the main roadblocks to its economic growth such as the energy crisis,poor communication infrastructure,and narrow foreign *** study includes wide range of scholarly and peer-reviewed literature,academic journals,think-tank reports,and government-sponsored *** from their analysis,though,is the consideration of the regional geo-political dynamics and Pakistan’s domestic challenges particularly insecurity and violence that can affect the implementation of the CPEC ***

关键词：中巴经济走廊双边经济合作成本效益巴基斯坦

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A mini-review on MXenes as versatile substrate for advanced sensors

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Chinese Chemical Letters 2020年第4期31卷 922-930页

作者： Razium Ali Soomro Sana jawaid Qizhen Zhu Zaheer Abbas Bin Xu Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China State Key Laboratory of Organic-Inorganic Composites Beijing Key Laboratory of Electrochemical Process and Technology for MaterialsBeijing University of Chemical TechnologyBeijing 100029China National Centre of Excellence in Analytical Chemistry University of SindhJamshoro 76080Pakistan

MXenes have emerged as versatile 2D materials that are already gaining paramount attention in the areas of energy,catalyst,electromagnetic shielding,and *** unique surface chemistry,graphene-like mo rphology,high hydrophilicity,metal-like conductivity with redox capability identifies MXenes,as an ideal material for surface-related *** short review summarizes the most recent reports that discuss the potential application of MXenes and their hybrids as a transducer material for advanced *** on the nature of transducing signals,the discussion is categorized into three sections,which include electrochemical(bio)sensors,gas sensors,and finally,electro-chemiluminescence&fluorescent *** review provides a concise summary of all the analytical merits obtained subsequent to the use of MXenes,followed by endeavors that have been made to accentuate the future perspective of MXenes in sensor devices.

关键词： MXenes Electrochemical sensors Gas sensors Electrochemiluminescent sensor Fluorescent sensors

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Modification of Oil Palm Empty Fruit Bunch and Sugarcane Bagasse Biomass as Potential Reinforcement for Composites Panel and Thermal Insulation Materials

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Journal of Bionic Engineering 2019年第1期16卷 175-188页

作者： Nor Azlina Ramlee Mohammad jawaid Edi Syams Zainudin Shaikh Abdul Karim Yamani Department of Biocomposite Laboratory Institute of Tropical Forestry and Forest Products (INTROP)Universiti Putra Malaysia 43400 SerdangSelangorMalaysia Department of Mechanical and Manufacturing Engineering Faculty of EngineeringUniversiti Putra Malaysia 43400 SerdangSelangorMalaysia Faculty of Applied Science Wood Industry Universiti Teknologi MARA Campus of Jengka 26400 Bandar Tun Abdul Razak JengkaPahangMalaysia

This paper focuses on the study of the effect of modification of Oil Palm Empty Fruit Bunch(OPEFB)and sugarcane bagasse(SCB)biomass as potential reinforcement for composites panel and thermal *** fibres were treated with three types of chemicals:2%silane,4%H2O2 and 4%H2O2-2%silane for 3 *** influence of modified fibres content in composites was examined by structural changes using image analyser,Fourier transform infrared(FTIR),Scanning Electron Microscopy(SEM),tensile,interracial shear strength(IFSS)and thermal *** diameter of both fibres was reduced after treatment and showed decreasing of lignin and hemi-cellulose in *** strength has been increased by 2%silane treatment for both fibres and 4%H2O2 treatment displays higher result for *** properties of treated SCB fibre with silane display higher residual content and better thermal *** charac-terization showed that 2%silane treatment removed silica bodies of OPEFB fibre while 4%H2O2 treatment uniformly filled porosity of SCB ***,results revealed that treated OPEFB fibre is enough to improve compatibility and mechanical properties,while treated SCB fibre was effective in thermal stability for fabrication of composite materials.

关键词： oil palm empty fruit bunch sugarcane bagasse fibre treatment tensile properties thermal properties interracial shear strength

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Energy consumption of electrooxidation systems with boron-doped diamond electrodes in the pulse current mode

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International Journal of Minerals,Metallurgy and Materials 2013年第1期20卷 106-112页

作者： Jun-jun Wei Xu-hui Gao Li-fu Hei jawaid Askari Cheng-ming Li Institute of Advanced Materials and Technology University of Science and Technology Beijing Institute of Manufacturing Engineering National University of Sciences & Technology (NUST)

A pulse current technique was conducted in a boron-doped diamond （BDD） anode system for electrochemical waste- water treatment. Due to the strong generation and weak absorption of hydroxyl radicals on the diamond surface, the BDD elec- trode possesses a powerful capability of electrochemical oxidation of organic compounds, especially in the pulse current mode. The influences of pulse current parameters such as current density, pulse duty cycle, and frequency were investigated in terms of chemical oxygen demand （COD） removal, average current efficiency, and specific energy consumption. The results demon- strated that the relatively high COD removal and low specific energy consumption were obtained simultaneously only if the current density or pulse duty cycle was adjusted to a reasonable value. Increasing the frequency slightly enhanced the COD re- moval and average current efficiency. A pulse-BDD anode system showed a stronger energy saving ability than a constant-BDD anode system when the electrochemical oxidation of phenol of the two systems was compared. The results prove that the pulse current technique is more cost-effective and more suitable for a BDD anode system for real wastewater treatment. A kinetic analysis was presented to explain the above results.

关键词： diamond fihlls boron doping electrochemical oxidation hydroxyl radicals energy consumption wastewater treat- ment

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Ionotropic receptors mediate olfactory learning and memory in Drosophila

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Insect Science 2024年第4期31卷 1249-1269页

作者： Md Zeeshan Ali Anushree Aarif Ahsan Mohammad Shamsul Ola Rizwanul Haque jawaid Ahsan Department of Biotechnology Central University of South BiharGayaBiharIndia Department of Radiation Oncology University of MichiganAnn ArborMichiganUSA Department of Biochemistry College of ScienceKing Saud UniversityRiyadhSaudi Arabia

Phenylacetaldehyde(PAH),an aromatic compound,is present in a diverse range of fruits including overripe bananas and prickly pear cactus,the two major host fruits for Drosophila *** acts as a potent ligand for the ionotropic receptor 84a(IR84a)in the adult fruit fly and it is detected by the IR84a/IR8a heterotetrameric *** role in the male courtship behavior through IR84a as an environmental aphrodisiac is of additional *** ***,two distinct kinds of olfactory receptors,that is,odorant receptors(ORs)and ionotropic receptors(IRs),perceive the odorant *** display unique structural,molecular,and functional characteristics in addition to having different evolutionary ***,olfactory cues detected by the ORs such as ethyl acetate,1-butanol,isoamyl acetate,1-octanol,4-methylcyclohexanol,*** as aliphatic esters and alcohols have been employed in olfactory classical conditioning using fruit *** underlines the participation of OR-activated olfactory pathways in learning and memory *** study elucidates that likewise ethyl acetate(EA)(an OR-responsive odorant),PAH(an IR-responsive aromatic compound)too can form learning and memory when associated with an appetitive gustatory *** association of PAH with sucrose(PAH/SUC)led to learning and formation of the long-term memory(LTM).Additionally,the Orco^(1),Ir84a^(MI00501),and Ir8a^(1)mutant flies were used to confirm the exclusive participation of the IR84a/IR8a complex in PAH/SUC olfactory associative *** results highlight the involvement of IRs via an IR-activated pathway in facilitating robust olfactory behavior.

关键词： appetitive conditioning Drosophila melanogaster ethyl acetate ionotropic receptors learning and memory phenylacetaldehyde

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Metabolic regulation of microglial phagocytosis:Implications for Alzheimer’s disease therapeutics

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Translational Neurodegeneration 2023年第1期12卷 205-224页

作者： Izabela Lepiarz-Raba Ismail Gbadamosi Roberta Florea Rosa Chiara Paolicelli Ali jawaid Laboratory for Translational Research in Neuropsychiatric Disorders(TREND) BRAINCITY:Center of Excellence for Neural Plasticity and Brain DisordersNencki Institute of Experimental BiologyWarsawPoland Swiss Federal Institute of Technology(ETH) ZurichSwitzerland Department of Biomedical Sciences University of LausanneLausanneSwitzerland

Microglia,the resident immune cells of the brain,are increasingly implicated in the regulation of brain health and *** perform multiple functions in the central nervous system,including surveillance,phagocytosis and release of a variety of soluble ***,a majority of their functions are closely related to changes in their *** natural inter-dependency between core microglial properties and metabolism offers a unique opportunity to modulate microglial activities via nutritional or metabolic *** this review,we examine the existing scientific literature to synthesize the hypothesis that microglial phagocytosis of amyloid beta(Aβ)aggregates in Alzheimer’s disease(AD)can be selectively enhanced via metabolic *** first review the basics of microglial metabolism and the effects of common metabolites,such as glucose,lipids,ketone bodies,glutamine,pyruvate and lactate,on microglial inflammatory and phagocytic ***,we examine the evidence for dysregulation of microglial metabolism in *** is followed by a review of in vivo studies on metabolic manipulation of microglial functions to ascertain their therapeutic potential in ***,we discuss the effects of metabolic factors on microglial phagocytosis of healthy synapses,a pathological process that also contributes to the progression of *** conclude by enlisting the current challenges that need to be addressed before strategies to harness microglial phagocytosis to clear pathological protein deposits in AD and other neurodegenerative disorders can be widely adopted.

关键词： Microglia Metabolism Alzheimer’s disease Neurodegeneration Inflammation Phagocytosis

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