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Experimental Study on Heat Storage Properties Comparison of Paraffin/Metal Foams Phase Change Material Composites

Journal of Thermal Science 2024年第2期33卷 469-478页

作者： Waqar AHMED Abid HUSSAIN Hanzla SHAHID Imran ali hafiz muhammad ali Department of Mechanical Engineering University of Engineering and TechnologyTaxila47080Pakistan Department of Mechanical Engineering Institute of Space TechnologyIslamabadPakistan Department of Mechanical Mechatronics and Manufacturing EngineeringUniversity of Engineering and Technology LahoreFaisalabad CampusPunjabPakistan Mechanical Engineering Department King Fahd University of Petroleum and MineralsDhahran31261Saudi Arabia Interdisciplinary Research Center for Renewable Energy and Power Systems(IRC-REPS) King Fahd University of Petroleum and MineralsDhahran31261Saudi Arabia

Heat storage properties of phase change materials(PCMs) are essential characteristics that perform a key role in thermal heat energy storage *** thermal properties of PCMs can be improved by developing metal foam/PCM *** addition of metal foam in PCMs has a significant effect on the thermal characteristics of *** this paper,the heat storage properties of two different metal foam/PCM composites were experimentally *** behavior of paraffin in metal foam(copper and iron-nickel)/paraffin composites concerning pure paraffin at a constant heat flux of 1000 W/m^(2) in three directions simultaneously(x,y,and z) was *** was infiltrated into copper and iron-nickel foams to develop composite materials which resulted in enhancing the thermal conductivity of the paraffin.A comparative analysis is made on the heat storage properties of paraffin in copper and iron-nickel foams/paraffin *** temperature distribution during the phase transition process is experimentally *** comparison indicates that temperature uniformity in copper foam/paraffin composite is better than in iron-nickel foam/paraffin composite and pure paraffin at the same heat *** results show that at heat flux of 1000 W/m^(2),the heat storage time for copper foam/paraffin composite is 20.63% of that of iron-nickel foam/paraffin composite.

关键词： heat storage capacity paraffin/metal foam composite temperature uniformity heat storage rate phase transition process

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Tribological Performance of Different Concentrations of Al_(2)O_(3)Nanofluids on Minimum Quantity Lubrication Milling

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Chinese Journal of Mechanical Engineering 2023年第4期36卷 67-78页

作者： Xiufang Bai Juan Jiang Changhe Li Lan Dong hafiz muhammad ali Shubham Sharma School of Mechanical and Automotive Engineering Qingdao University of TechnologyQingdao 266520China School of Mechanical and Electrical Engineering Qingdao Binhai UniversityQingdao 266555China Mechanical Engineering Department King Fahd University of Petroleum and MineralsDhahran 31261Saudi Arabia Department of Mechanical Engineering IK Gujral Punjab Technical UniversityMain Campus-KapurthalaJalandhar 144603India

Nanofluid minimum quantity lubrication(NMQL)is a green processing *** oil is suitable as base oil because of excellent lubrication performance,low freezing temperature,and high ***_(2)O_(3)nanoparticles improve not only the heat transfer capacity but also the lubrication *** physical and chemical proper-ties of nanofluid change when Al_(2)O_(3)nanoparticles are ***,the effects of the concentration of nanofluid on lubrication performance remain ***,the mechanisms of interaction between Al_(2)O_(3)nanoparti-cles and cottonseed oil are *** this research,nanofluid is prepared by adding different mass concentrations of Al_(2)O_(3)nanoparticles(0,0.2%,0.5%,1%,1.5%,and 2%wt)to cottonseed oil during minimum quantity lubrication(MQL)milling 45 *** tribological properties of nanofluid with different concentrations at the tool/workpiece interface are studied through macro-evaluation parameters(milling force,specific energy)and micro-evaluation parameters(surface roughness,micro morphology,contact angle).The result show that the specific energy is at the minimum(114 J/mm^(3)),and the roughness value is the lowest(1.63μm)when the concentration is 0.5 wt%.The surfaces of the chip and workpiece are the smoothest,and the contact angle is the lowest,indicating that the tribological proper-ties are the best under 0.5 wt%.This research investigates the intercoupling mechanisms of Al_(2)O_(3)nanoparticles and cottonseed base oil,and acquires the optimal Al_(2)O_(3)nanofluid concentration to receive satisfactory tribological properties.

关键词： Milling Al_(2)O_(3)nanofluid Minimum quantity lubrication(MQL) Surface micromorphology

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Machinability of ultrasonic vibration-assisted micro-grinding in biological bone using nanolubricant

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Frontiers of Mechanical Engineering 2023年第1期18卷 115-130页

作者： Yuying YANG Min YANG Changhe LI Runze LI Zafar SAID hafiz muhammad ali Shubham SHARMA School of Mechanical and Automotive Engineering Qingdao University of TechnologyQingdao 266520China College of Physics Qingdao UniversityQingdao 266071China Department of Biomedical Engineering University of Southern CaliforniaLos AngelesCA 90089USA Department of Sustainable and Renewable Energy Engineering University of SharjahSharjah 27272United Arab Emirates Mechanical Engineering Department King Fahd University of Petroleum and MineralsDhahran 31261Saudi Arabia Department of Mechanical Engineering IK Gujral Punjab Technical UniversityJalandhar 144603India

Bone grinding is an essential and vital procedure in most surgical ***,the insufficient cooling capacity of dry grinding,poor visibility of drip irrigation surgery area,and large grinding force leading to high grinding temperature are the technical bottlenecks of micro-grinding.A new micro-grinding process called ultrasonic vibration-assisted nanoparticle jet mist cooling(U-NJMC)is innovatively proposed to solve the technical *** combines the advantages of ultrasonic vibration(UV)and nanoparticle jet mist cooling(NJMC).Notwithstanding,the combined effect of multi parameter collaborative of U-NJMC on cooling has not been *** grinding force,friction coefficient,specific grinding energy,and grinding temperature under dry,drip irrigation,UV,minimum quantity lubrication(MQL),NJMC,and U-NJMC micro-grinding were compared and *** showed that the minimum normal grinding force and tangential grinding force of U-NJMC micro-grinding were 1.39 and 0.32 N,which were 75.1%and 82.9%less than those in dry grinding,*** minimum friction coefficient and specific grinding energy were achieved using *** with dry,drip,UV,MQL,and NJMC grinding,the friction coefficient of U-NJMC was decreased by 31.3%,17.0%,19.0%,9.8%,and 12.5%,respectively,and the specific grinding energy was decreased by 83.0%,72.7%,77.8%,52.3%,and 64.7%,*** with UV or NJMC alone,the grinding temperature of U-NJMC was decreased by 33.5%and 10.0%,*** results showed that U-NJMC provides a novel approach for clinical surgical micro-grinding of biological bone.

关键词： micro-grinding biological bone ultrasonic vibration(UV) nanoparticle jet mist cooling(NJMC) grinding force grinding temperature

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Elevating Image Steganography:A Fusion of MSB Matching and LSB Substitution for Enhanced Concealment Capabilities

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Computers, Materials & Continua 2024年第5期79卷 2923-2943页

作者： muhammad Zaman ali Omer Riaz hafiz muhammad Hasnain Waqas Sharif Tenvir ali Gyu Sang Choi Department of Information Technology The Islamia University of BahawalpurBahawalpur63100Pakistan Department of Computer Science The Islamia University of BahawalpurBahawalpur63100Pakistan School of Computer Science and Engineering Yeungnam UniversityGyeongbuk38541Korea

In today’s rapidly evolving landscape of communication technologies,ensuring the secure delivery of sensitive data has become an essential *** overcome these difficulties,different steganography and data encryption methods have been proposed by researchers to secure *** of the proposed steganography techniques achieve higher embedding capacities without compromising visual imperceptibility using LSB *** this work,we have an approach that utilizes a combinationofMost SignificantBit(MSB)matching andLeast Significant Bit(LSB)*** proposed algorithm divides confidential messages into pairs of bits and connects them with the MSBs of individual pixels using pair matching,enabling the storage of 6 bits in one pixel by modifying a maximum of three *** proposed technique is evaluated using embedding capacity and Peak Signal-to-Noise Ratio(PSNR)score,we compared our work with the Zakariya scheme the results showed a significant increase in data concealment *** achieved results of ourwork showthat our algorithmdemonstrates an improvement in hiding capacity from11%to 22%for different data samples while maintaining a minimumPeak Signal-to-Noise Ratio(PSNR)of 37 *** findings highlight the effectiveness and trustworthiness of the proposed algorithm in securing the communication process and maintaining visual integrity.

关键词： Steganography most significant bit(MSB) least significant bit(LSB) peak signal-to-noise ratio(PSNR)

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Hep-Pred: Hepatitis C Staging Prediction Using Fine Gaussian SVM

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Computers, Materials & Continua 2021年第10期69卷 191-203页

作者： Taher M.Ghazal Marrium Anam Mohammad Kamrul Hasan Muzammil Hussain muhammad Sajid Farooq hafiz muhammad Ammar ali Munir Ahmad Tariq Rahim Soomro Center for Cyber Security Faculty of Information Science and TechnologyUniversiti Kebansaan Malaysia(UKM)Bangi43600SelangorMalaysia School of Information Technology Skyline University CollegeUniversity City SharjahSharjah1797UAE Department of Computer Science Government College UniversityFaisalabad38000Pakistan Department of Computer Science School of Systems and TechnologyUniversity of Management and TechnologyLahore54000Pakistan Department of Computer Science Lahore Garrison UniversityLahore54000Pakistan School of Computer Science National College of Business Administration&EconomicsLahore54000Pakistan CCSIS Institute of Business ManagementKarachi75190SindhPakistan

Hepatitis C is a contagious blood-borne infection,and it is mostly asymptomatic during the initial ***,it is difficult to diagnose and treat patients in the early stages of *** disease’s progression to its last stages makes diagnosis and treatment more *** this study,an AI system based on machine learning algorithms is presented to help healthcare professionals with an early diagnosis of hepatitis *** dataset used for our Hep-Pred model is based on a literature study,and includes the records of 1385 patients infected with the hepatitis C *** in this dataset received treatment dosages for the hepatitis C virus for about 18 months.A former study divided the disease into four main *** stages have proven helpful for doctors to analyze the liver’s *** traditional way to check the staging is the biopsy,which is a painful and time-consuming *** article aims to provide an effective and efficient approach to predict hepatitis C *** this purpose,the proposed technique uses a fine Gaussian SVM learning algorithm,providing 97.9%accurate results.

关键词： Hepatitis C artificial intelligence Hep-Pred support vector machine machine learning hepatitis staging

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Biological Stability of Water-Based Cutting Fluids:Progress and Application

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Chinese Journal of Mechanical Engineering 2022年第1期35卷 7-30页

作者： Lizhi Tang Yanbin Zhang Changhe Li Zongming Zhou Xiaolin Nie Yun Chen Huajun Cao Bo Liu Naiqing Zhang Zafar Said Sujan Debnath muhammad Jamil hafiz muhammad ali Shubham Sharma School of Mechanical and Automotive Engineering Qingdao University of TechnologyQingdao 266520China Hanergy(Qingdao)Lubrication Technology Co. Ltd.Qingdao 266200China Nanjing Kerun Lubricants Co. Ltd.Nanjing 211106China Chengdu Tool Research Institute Co. LtdChengdu 610500China School of Mechanical Engineering Chongqing UniversityChongqing 400044China Sichuan Future Aerospace Industry LLC Shifang 618400China Shanghai Jinzhao Energy Saving Technology Co. Ltd.Shanghai 200436China Department of Sustainable and Renewable Energy Engineering University of Sharjah27272 SharjahUnited Arab Emirates Mechanical Engineering Department Curtin University98009 MiriMalaysia College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China Mechanical Engineering Department King Fahd University of Petroleum and MineralsDhahran 31261Saudi Arabia Department of Mechanical Engineering IK Gujral Punjab Technical UniversityKapurthala 144603PunjabIndia

The application of cutting fluid in the field of engineering manufacturing has a history of hundreds of years,and it plays a vital role in the processing efficiency and surface quality of *** them,water-based cutting fluid accounts for more than 90%of the consumption of cutting ***,long-term recycling of water-based cutting fluid could easily cause deterioration,and the breeding of bacteria could cause the cutting fluid to fail,increase manufacturing costs,and even endanger the health of *** bactericides could improve the biological stability of cutting fluids,but they are toxic to the environment and do not conform to the development trend of low-carbon ***-carbon manufacturing is inevitable and the direction of sustainable *** use of nanomaterials,transition metal complexes,and physical sterilization methods on the bacterial cell membrane and genetic material could effectively solve this *** this article,the mechanism of action of additives and microbial metabolites was first ***,the denaturation mechanism of traditional bactericides on the target protein and the effect of sterilization efficiency were ***,the mechanism of nanomaterials disrupting cell membrane potential was *** effects of lipophilicity and the atomic number of transition metal complexes on cell membrane penetration were also summarized,and the effects of ultraviolet rays and ozone on the destruction of bacterial genetic material were *** other words,the bactericidal performance,hazard,degradability,and economics of various sterilization methods were comprehensively evaluated,and the potential development direction of improving the biological stability of cutting fluid was proposed.

关键词： Cutting fluid Microorganism Bactericide Sterilization

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Vegetable Oil-Based Nanolubricants in Machining:From Physicochemical Properties to Application

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Chinese Journal of Mechanical Engineering 2023年第4期36卷 4-42页

作者： Xiaotian Zhang Changhe Li Zongming Zhou Bo Liu Yanbin Zhang Min Yang Teng Gao Mingzheng Liu Naiqing Zhang Zafar Said Shubham Sharma hafiz muhammad ali School of Mechanical and Automotive Engineering Qingdao University of TechnologyQingdao 266520China Hanergy(Qingdao)Lubrication Technology Co. Ltd.Qingdao 266200China Sichuan Future Aerospace Industry LLC. Shifang 618400China Shanghai Jinzhao Energy Saving Technology Co. Ltd.Shanghai 200436China Department of Sustainable and Renewable Energy Engineering University of Sharjah27272 SharjahUnited Arab Emirates Department of Mechanical Engineering and Advanced Materials Science Regional Center for Extension and DevelopmentCouncil of Scientific and Industrial Research(CSIR)-Central Leather Research Institute(CLRI)Jalandhar 144021India Mechanical Engineering Department King Fahd University of Petroleum and MineralsDhahran 31261Saudi Arabia

Cutting fluid is crucial in ensuring surface quality and machining accuracy during ***,traditional mineral oil-based cutting fluids no longer meet modern machining’s health and environmental protection *** a renewable,pollution-free alternative with excellent processing characteristics,vegetable oil has become an inevitable ***,vegetable oil lacks oxidation stability,extreme pressure,and antiwear proper-ties,which are essential for machining *** physicochemical characteristics of vegetable oils and the improved methods’application mechanism are not fully *** study aims to investigate the effects of viscosity,surface tension,and molecular structure of vegetable oil on cooling and lubricating *** mechanisms of autoxidation and high-temperature oxidation based on the molecular structure of vegetable oil are also *** study further investigates the application mechanism and performance of chemical modification and antioxidant *** study shows that the propionic ester of methyl hydroxy-oleate obtained by epoxidation has an initial oxidation temperature of 175℃.The application mechanism and extreme pressure performance of conventional extreme pressure additives and nanoparticle additives were also investigated to solve the problem of insufficient oxidation resistance and extreme pressure performance of nanobiological ***,the study discusses the future prospects of vegetable oil for chemical modification and nanoparticle *** study provides theoretical guidance and technical support for the industrial application and scientific research of vegetable oil in the field of lubrication and *** is expected to promote sustainable development in the manufacturing industry.

关键词： Cutting fluid Vegetable oil Chemical modification Antioxidant Extreme pressure additive Minimum quality lubrication

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Advances in fabrication of ceramic corundum abrasives based on sol–gel process

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Chinese Journal of Aeronautics 2021年第6期34卷 1-17页

作者： Baoteng HUANG Changhe LI Yanbin ZHANG Wenfeng DING Min YANG Yuying YANG Han ZHAI Xuefeng XU Dazhong WANG Sujan DEBNATH muhammad JAMIL Hao Nan Li hafiz muhammad ali Munish Kumar GUPTA Zafar SAID School of Mechanical and Automotive Engineering Qingdao University of TechnologyQingdao 266520China College of Mechanical and Electrical Engineering Nanjing University of Aeronautics cand AstronauticsNanjing 210016China Qingdao Sisa Abrasives Co. LtdQingdao 266555China Key Laboratory of Special Purpose Equipment and Advanced Processing Technology Ministry of Education&Zhejiang ProvinceZhejiang University of TechnologyHangzhou 310032China School of Mechanical and Automotive Engineering Shanghai University of Engineering ScienceShanghai 201620China Department of Mechanical Engineering Curtin UniversityMiri 98009Malaysia School of Aerospace University of Nottingham Ningbo ChinaNingbo 315100China Department of Mechanical Engineering King Fahd University of Petroleum and MineralsDhahran 31261Saudi Arabia Key Lab High Efficiency and Clean Mech Manufacture Shandong UniversityJinan 250100China Deparment of Sustainable and Renewable Energy Engineering University of SharjahSharjah 27272United Arab Emirates

Corundum abrasives with good chemical stability can be fabricated into various free abrasives and bonded abrasive tools that are widely used in the precision machining of various ***,these abrasives cannot satisfy the machining requirements of difficult-to-machine materials with high hardness,high strength,and strong wearing *** superhard abrasives can machine the above-mentioned materials,their dressing and manufacturing costs are *** contrast,ceramic corundum abrasives fabricated by sol–gel method is a costeffective product between conventional and superhard *** corundum abrasives exhibit self-sharpening and high *** this review,the optimization methods of ceramic corundum abrasive properties are introduced from three aspects:precursor synthesis,particle shaping,and ***,the functional mechanism of seeds and additives on the microstructural and mechanical properties of abrasives is ***,seeds can reduce the phase transition temperature and improve fracture *** grain size and uniformly dense structure can be controlled by applying an appropriate amount of multicomponent ***,the urgent need of engineering application and machinability of special shape ceramic corundum abrasives is reviewed,and three methods of abrasive shaping are *** micromold replication technique is highly advanced and can be used to prepare functional ***,the influence of a new sintering method,namely,two-step sintering technique,on the microstructural and mechanical performance of ceramic corundum abrasives is ***,the challenge and developmental trend of the optimization of ceramic corundum abrasives are prospected.

关键词： Ceramic corundum abrasive Seed Shaping technique Sintering additive Sol–Gel Two-step sintering process

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Minimum quantity lubrication machining of aeronautical materials using carbon group nanolubricant: From mechanisms to application

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Chinese Journal of Aeronautics 2022年第11期35卷 85-112页

作者： Xin CUI Changhe LI Wenfeng Ding Yun CHEN Cong MAO Xuefeng XU Bo LIU Dazhong WANG Hao Nan LI Yanbin ZHANG Zafar SAID Sujan DEBNATH muhammad JAMIL hafiz muhammad ali Shubham SHARMA School of Mechanical and Automotive Engineering Qingdao University of TechnologyQingdao 266520China College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China Chengdu Tool Research Institute Co. Ltd.Chengdu 610500China College of Automotive and Mechanical Engineering Changsha Universiy of Science and TechnologyChangsha 410ll14China Key Laboratory of Special Purpose Equipment and Advanced Processing Technology Ministry of Education&Zhejiang ProvinceZhejiang University of TechnologyHangzhou 310032China Sichuan Future Aerospace Industry LLC. Shifang 618400China School of Mechanical and Automotive Engineering Shanghai University of Engineering ScienceShanghai 201620China School of Aerospace Universiy of Notingham Ningbo ChinaNingbo 315100China College of Engineering Universityof SharjahSharjah 27272United Arab Emirates Mechanical Engineering Department Curtin UniversityMiri 98009Malaysia Mechanical Engineering Department King Fahd University of Petroleum and MineralsDhahran 31261Saudi Arabia Department of Mechanical Engineering and Advanced Materials Science Council of Scientific and Industrial Research(CSIR)-Central Leather Research Institute(CLRI)Regional Center for Extension and DevelopmentJalandhar 144021India

It is an inevitable trend of sustainable manufacturing to replace flood and dry machining with minimum quantity lubrication(MQL)***,for aeronautical difficult-tomachine materials,MQL couldn’t meet the high demand of cooling and lubrication due to high heat generation during ***-biolubricants,especially non-toxic carbon group nano-enhancers(CGNs)are used,can solve this technical ***,the machining mechanisms under lubrication of CGNs are unclear at complex interface between tool and workpiece,which characterized by high temperature,pressure,and speed,limited its application in factories and necessitates in-depth *** fill this gap,this study concentrates on the comprehensive quantitative assessment of tribological characteristics based on force,tool wear,chip,and surface integrity in titanium alloy and nickel alloy machining and attempts to answer mechanisms ***,to establish evaluation standard,the cutting mechanisms and performance improvement behavior covering antifriction,antiwear,tool failure,material removal,and surface formation of MQL were ***,the unique film formation and lubrication behaviors of CGNs in MQL turning,milling,and grinding are *** influence law of molecular structure and micromorphology of CGNs was also answered and optimized options were recommended by considering diverse boundary ***,in view of CGNs limitations in MQL,the future development direction is proposed,which needs to be improved in thermal stability of lubricant,activity of CGNs,controllable atomization and transportation methods,and intelligent formation of processing technology solutions.

关键词： Aerospace materials Carbon nanoparticles Grinding Lubrication mechanism Milling Minimum quantity lubrication Turning

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Nano-enhanced biolubricant in sustainable manufacturing:From processability to mechanisms

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Friction 2022年第6期10卷 803-841页

作者： Yanbin ZHANG Hao Nan LI Changhe LI Chuanzhen HUANG hafiz muhammad ali Xuefeng XU Cong MAO Wenfeng DING Xin CUI Min YANG Tianbiao YU muhammad JAMIL Munish Kumar GUPTA Dongzhou JIA Zafar SAID School of Mechanical and Automotive Engineering Qingdao University of TechnologyQingdao 266520China School of Aerospace University of Nottingham Ningbo ChinaNingbo 315100China School of Mechanical Engineering Yanshan UniversityQinhuangdao 066004China Mechanical Engineering Department King Fahd University of Petroleum and MineralsDhahran 31261Saudi Arabia Key Laboratory of Special Purpose Equipment and Advanced Processing Technology Ministry of Education&Zhejiang ProvinceZhejiang University of TechnologyHangzhou 310032China College of Automotive and Mechanical Engineering Changsha University of Science and TechnologyChangsha 410114China College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China School of Mechanical Engineering&Automation Northeastern UniversityShenyang 110006China Industrial Engineering Department University of Engineering and Technology TaxilaTaxila 47080Pakistan School of Mechanical Engineering Shandong UniversityJinan 250061China College of Mechanical Engineering and Automation Liaoning University of TechnologyJinzhou 121001China College of Engineering University of SharjahSharjah 27272United Arab Emirates

To eliminate the negative effect of traditional metal-working fluids and achieve sustainable manufacturing,the usage of nano-enhanced biolubricant(NEBL)is widely researched in minimum quantify lubrication(MQL)***'s improved tool wear and surface integrity have been preliminarily verified by experimental *** previous review papers also concluded the major influencing factors of processability including nano-enhancer and lubricant types,NEBL concentration,micro droplet size,and so ***,the complex action of NEBL,from preparation,atomization,infiltration to heat transfer and anti-friction,is indistinct which limits preparation of process specifications and popularity in *** in the complex machining process,in-depth understanding is difficult and *** fll this gap,this paper concentrates on the comprehensive quantitative assessment of processability based on tribological,thermal,and machined surface quality aspects for NEBL application in turning,milling,and *** it attempts to answer mechanisms systematically considering multi-factor influence of molecular structure,physicochemical properties,concentration,and ***,this paper reveals advanced lubrication and heat transfer mechanisms of NEBL by quantitative comparison with biolubricant-based MQL ***,the distinctive filmformation,atomization,and infiltration mechanisms of NEBL,as distinguished from metal-working fluid,are clarified combining with its unique molecular structure and physical ***,the process optimization strategy is concluded based on the synergistic relationship analysis among process variables,physicochemical properties,machining mechanisms,and performance of ***,the future development directions are put forward aiming at current performance limitations of NEBL,which requires improvement on preparation and jet methods *** paper will help scientists deeply understand effective mec

关键词： nano-enhanced biolubricant(NEBL) sustainable manufacturing minimum quantity lubrication(MQL) tribological properties machining mechanisms

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