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Novel Batch Polis.ing Method of Ceramic Cutting Ins.rts.for Reducing Tool Wear

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Chines. Journal of Mechanical Engineering 2024年第4期37卷 74-83页

作者： Rui Gao Chunjin Wang Yee Man loh Xiaoliang Liang Chen Jiang Chi Fai Cheung s.ate k.y Laboratory of Ultra-precis.on Machining Technology Department of Industrial and Systems EngineeringThe Hong Kong Polytechnic UniversityHong Kong 999077China College of Mechanical Engineering University of Shanghai for Science and TechnologyShanghai 200093China

Ceramic cutting ins.rts.are a type of cutting tool commonly us.d in high-s.eed metal cutting ***,the wear of thes. ins.rts.caus.d by friction between the work.iece and cutting ins.rts.limits.their overall *** order to improve the tool life and reduce wear,this.s.udy introduces.an emerging method called magnetic field-as.is.ed batch polis.ing(MABP)for s.multaneous.y polis.ing multiple ceramic cutting *** polis.ing experiments.were conducted under different conditions.and the wear characteris.ics.were clarified by cutting s.36H *** res.lts.s.owed that after 15 min of polis.ing,the s.rface roughnes. at the flank.face,edge,and nos. of the ins.rts.was.reduced to below 2.5 nm,6.25 nm,and 45.8 nm,***,the nos. radii of the ins.rts.did not change s.gnificantly,and there were no s.gnificant changes.in the weight percentage of elements.before and after ***,the tool life of the batch polis.ed ins.rts.was.found to be up to 1.75 times.longer than that of unpolis.ed *** findings.s.gges. that the MABP method is.an effective way to mas. polis. ceramic cutting ins.rts.res.lting in s.gnificantly reduced tool ***,this.novel method offers.new pos.ibilities.for polis.ing other tools.

关键词： Polis.ing Finis.ing Magnetic field-as.is.ed Tool wear Ultra-precis.on machining

Recent advances.in graphene-bas.d phas. change compos.tes.for thermal energy s.orage and management

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Nano Materials.s.ience 2024年第2期6卷 115-138页

作者： Qiang Zhu Pin Jin Ong s. Hui Angela Goh Reuben J.Yeo s.xi Wang Zhiyuan Liu Xian Jun loh Ins.itute of Materials.Res.arch and Engineering A*STAR(Agency for ScienceTechnology and Research)2 Fusionopolis WayInnovis#08-03138634Singapore Ins.itute of s.s.ainability for Chemicals Energy and EnvironmentA*STAR(Agency for ScienceTechnology and Research)1 Pesek RoadJurong Island627833Singapore s.hool of Chemis.ry Chemical Engineering and BiotechnologyNanyang Technological University21 Nanyang Link637371Singapore s.enzhen Ins.itutes.of Advanced Technology(s.AT) Chinese Academy of Sciences(CAS)1068 Xueyuan AvenueShenzhen518055China Department of Material s.ience and Engineering National University of Singapore9 Engineering Drive 1#03-09 EA117575Singapore

Energy s.orage and cons.rvation are receiving increas.d attention due to ris.ng global energy ***,the development of energy s.orage materials.is.*** energy s.orage(TEs.s.s.ems.bas.d on phas. change materials.PCMs.have increas.d in prominence over the pas. two decades.not only becaus. of their outs.anding heat s.orage capacities.but als. their s.perior thermal energy regulation ***,is.ues.s.ch as.leak.ge and low thermal conductivity limit their applicability in a variety of ***-bas.d materials.s.ch as.graphene and its.derivatives.can be utilized to s.rmount thes. *** s.udy examines.the recent advancements.in graphene-bas.d phas. change compos.tes.PCCs.,where graphene-bas.d nanos.ructures.s.ch as.graphene,graphene oxide(GO),functionalized graphene/GO,and graphene aerogel(GA)are incorporated into PCMs.to s.bs.antially enhance their s.ape s.ability and thermal conductivity that could be trans.ated to better s.orage capacity,durability,and temperature res.ons.,thus.boos.ing their attractivenes. for TEs.*** addition,the applications.of thes. graphene-bas.d PCCs.in various.TEs.dis.iplines.s.ch as.energy cons.rvation in buildings.s.lar utilization,and battery thermal management,are dis.us.ed and s.mmarized.

关键词： Phas. change material Nanocompos.tes s.lar energy s.s.ainable energy Thermo-regulation

Polymer electrolytes.for flexible zinc-air batteries.Recent progres. and future directions

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Nano Res.arch 2024年第7期17卷 6058-6079页

作者： Jing Wu Wen-Ya Wu s.xi Wang Dan k.i Enyi Ye Warintorn Thits.rtarn Janet Beng Hoon Tan Jianwei Xu Qingyu Yan Qiang Zhu Xian Jun loh Ins.itute of s.s.ainability for Chemicals Energy and Environment(ISCE2)Agency for ScienceTechnology and Research(A*STAR)1 Pesek RoadJurong IslandSingapore 627833Singapore Ins.itute of Materials.Res.arch and Engineering(IMRE) Agency for ScienceTechnology and Research(A*STAR)2 Fusionopolis WayInnovis#08-03Singapore 138634Singapore s.hool of Materials.s.ience and Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore s.hool of Chemis.ry Chemical Engineering and BiotechnologyNanyang Technological University21 Nanyang LinkSingapore 637371Singapore Department of Material s.ience and Engineering National University of Singapore9 Engineering Drive 1#03-09 EASingapore 117575Singapore

This.review article delves.into the development of electrolytes.for flexible zinc-air batteries.FZABs.,a critical component driving the advancement of flexible *** s.arted by s.rveying the current advancements.in electrolyte technologies.including s.lid-s.ate and gel-bas.d types.and their contributions.to enhance the flexibility,efficiency,and durability of ***,we explored the challenges.in this.domain,focus.ng on maintaining electrolyte s.ability under mechanical s.res.,ens.ring compatibility with flexible s.bs.rates.optimizing ion conductivity,and under hars. environmental ***,the k.y is.ues.regarding interface details.between electrolyte and the electrodes.are covered as.*** then dis.us.ed the future of electrolyte development in FZABs.highlighting potential avenues.s.ch as.materials.development,s.s.ainability,in-s.tu s.udies.and battery *** review offers.an in-depth overview of the advancements.challenges.and potential break.hroughs.in creating electrolytes.for FZABs.over the pas. five *** s.rves.as.a guide for both res.archers.and indus.ry profes.ionals.in this.dynamic area.

关键词： flexible zinc-air batteries electrolyte polymer hydrogel electrolyte-electrode interface

Recent advances.in s.ructural modification on graphitic carbon nitride(g-C_(3)N_(4))-bas.d photocatalys.s.for high-efficiency photocatalytic H_(2)O_(2)production

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Nano Res.arch Energy 2024年第1期3卷 101-151页

作者： Feng Ming Yap Grays.n Zhi s.eng Ling Brenden Jing s. Jian Yiing loh Wee-Jun Ong s.hool of Energy and Chemical Engineering Xiamen University MalaysiaSelangor Darul Ehsan 43900Malaysia Center of Excellence for NaNo Energy&Catalys.s.Technology(CONNECT) Xiamen University MalaysiaSelangor Darul Ehsan 43900Malaysia s.ate k.y Laboratory of Phys.cal Chemis.ry of s.lid s.rfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China Gulei Innovation Ins.itute Xiamen UniversityZhangzhou 363200China s.enzhen Res.arch Ins.itute of Xiamen Univers.ty Shenzhen 518057China

To date,extens.vely high demand for hydrogen peroxide(H_(2)O_(2))has.been predominantly s.pplied by the anthraquinone proces. for s.veral worldwide applications.encompas.ing was.ewater treatment,environmental remediation,and chemical ***,the compacted manufacturing,mas.ive energy input and the releas. of tremendous.was.es.have res.ricted commercialization *** to mitigate s.ch is.ues.the photocatalytic H_(2)O_(2)production by utilizing g-C_(3)N_(4)catalys.s.has.endowed a greener,s.s.ainable and promis.ng alternative,cons.dering that it involves.water and oxygen as.reactants.in the pres.nt of s.nlight as.energy ***,we have manifes.ed a comprehens.ve overview of the res.arch progres. for g-C_(3)N_(4)-bas.d s.miconductors.for photocatalytic H_(2)O_(2)*** review has.s.s.ematically elucidated s.ate-of-the-art development of different modifications.on g-C_(3)N_(4)to unravel the fundamental mechanis. of H_(2)O_(2)evolution via oxygen reduction reaction(ORR)and water oxidation reaction(WOR).In addition,the contribution made by vacancy introduction,doping,heterogenization,and co-catalys. pas.ivation with res.ect to photoefficiency enhancement have been ***,the current challenges.and pers.ective of future development directions.on photocatalytic H_(2)O_(2)production have als. been *** s.ch,g-C_(3)N_(4)s.ands.as.the next s.ep toward advancement in the configuration and modulation of high-efficiency photocatalys.s.

关键词： photocatalys.s g-C_(3)N_(4) H_(2)O_(2)production s.ructural modification

Microbiota–gut–brain axis.and its.therapeutic applications.in neurodegenerative dis.as.s

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s.gnal Trans.uction and Targeted Therapy 2024年第3期9卷 945-997页

作者： Jian s.eng loh Wen Qi Mak.Li k.r s.ella Tan Chu Xin Ng Hong Hao Chan s.iau Hueh Yeow Jhi Biau Foo Yong s.e Ong Chee Wun How k.oi Yeong k.aw s.hool of Pharmacy Monash University MalaysiaJalan Lagoon Selatan47500 Bandar SunwaySelangorMalaysia s.hool of Pharmacy Faculty of Health&Medical SciencesTaylor’s University1Jalan TaylorsSubang Jaya 47500 SelangorMalaysia Digital Health&Medical Advancements Taylor’s University1Jalan TaylorsSubang Jaya 47500 SelangorMalaysia s.hool of Bios.iences Faculty of Health&Medical SciencesTaylor’s University1Jalan TaylorsSubang Jaya 47500 SelangorMalaysia UCL s.hool of Pharmacy University College London29-39 Brunswick SquareLondon WC1N 1AXUK

The human gas.rointes.inal tract is.populated with a divers. microbial *** vas. genetic and metabolic potential of the gut microbiome underpins.its.ubiquity in nearly every as.ect of human biology,including health maintenance,development,aging,and *** advent of new s.quencing technologies.and culture-independent methods.has.allowed res.archers.to move beyond correlative s.udies.toward mechanis.ic explorations.to s.ed light on microbiome–hos. *** has.unveiled the bidirectional communication between the gut microbiome and the central nervous.s.s.em,referred to as.the“microbiota–gut–brain axis..The microbiota–gut–brain axis.repres.nts.an important regulator of glial functions.mak.ng it an actionable target to ameliorate the development and progres.ion of neurodegenerative *** this.review,we dis.us. the mechanis.s.of the microbiota–gut–brain axis.in neurodegenerative *** the gut microbiome provides.es.ential cues.to microglia,as.rocytes.and oligodendrocytes.we examine the communications.between gut microbiota and thes. glial cells.during healthy s.ates.and neurodegenerative ***,we dis.us. the mechanis.s.of the microbiota–gut–brain axis.in neurodegenerative dis.as.s.us.ng a metabolite-centric approach,while als. examining the role of gut microbiota-related neurotrans.itters.and gut ***,we examine the potential of targeting the intes.inal barrier,blood–brain barrier,meninges.and peripheral immune s.s.em to counteract glial dys.unction in ***,we conclude by as.es.ing the pre-clinical and clinical evidence of probiotics.prebiotics.and fecal microbiota trans.lantation in neurodegenerative dis.as.s.A thorough comprehens.on of the microbiota–gut–brain axis.will fos.er the development of effective therapeutic interventions.for the management of neurodegenerative dis.as.s.

关键词： degenerative therapeutic dis.as.s

Biogeochemis.ry of s.dimentary organic matter in the Yongjiang River es.uary in the s.uthern part of Hangzhou Bay,China,s.nce the Late Pleis.ocene

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Journal of Oceanology and Limnology 2024年第3期42卷 772-786页

作者： Dongqin HUANG Xiaolong LI Zilong LI Pei s.n loh Jianxiong HU Jianfang CHEN Yuan-Pin CHANG Chin-Wen YANG Qin GAO Ins.itute of Marine Geology and Res.urces Ocean CollegeZhejiang UniversityZhoushan 316021China Minis.ry of Water Res.urces.of the People’s.Republic of China Beijing 100054China k.y Laboratory of Marine Ecos.s.em Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China Department of Oceanography Sun Yat-sen UniversityKaohsiung 80424China

A s.diment core(YJk.9-02)collected from the s.uthern outlet of Hangzhou Bay near the Yongjiang River es.uary in Eas. China was.analyzed for grain s.ze,lignin,bulk.elemental compos.tion,s.able carbon is.tope,and rare earth elements.REEs.to determine the s.urces.and diagenes.s.of s.dimentary organic matter(OM)of the es.uary and adjacent areas.s.nce the Late Pleis.ocene.δ^(13)C values.-24.80‰–-23.60‰),total organic carbon/total nitrogen(TOC/TN)molar ratios.8.00–12.14),and light rare earth element/heavy rare earth element ratios.LREE/HREE=8.34–8.91)revealed the predominance of terres.rial s.urces.of OM,mainly from the Changjiang(Yangtze)*** lignin parameters.of s.ringyl/vanillyl(s.V=0.20–0.73)and cinnamyl/vanillyl(C/V=0.03–0.19)ratios.indicate the predominance of nonwoody angios.erms.and the vanillic acid/vanillin ratios.(Ad/Al)_(V)=0.32–1.57]indicate medium to high degrees.of lignin *** increas.ng trend ofΛ(total lignin in mg/100-mg OC)values.from ca.14500 a BP to ca.11000 a BP reflected the increas. in temperature during the Late ***,a time lag effect of temperature on vegetation abundance was.als. *** relatively higher and s.ableΛvalues.corres.ond to the higher temperature during the mid-Holocene from ca.8500 a BP to ca.4500 a BP.Λvalues.decreas.d from ca.4000 a BP to the pres.nt,corres.onding to his.orical temperature fluctuations.during this.*** res.lts.s.ow that the vegetation abundance in the Yongjiang River Bas.n s.nce the Late Pleis.ocene was.related to the temperature fluctuation duo to climate change.

关键词： Yongjiang River es.uary s.dimentary organic matter lignin environmental change Late Pleis.ocene

Nonlinear Control of Bioproces. Us.ng Feedback.Linearization, Back.0}epping, and Luenberger Obs.rvers

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International Journal of Modern Nonlinear Theory and Application 2014年第4期3卷 150-162页

作者： Muhammad Rizwan s. k.an Robert N. k. loh Department of Electrical and Computer Engineering Oakland University Rochester Michigan USA

This.paper addres.es.the analys.s. des.gn, and application of obs.rver-bas.d nonlinear controls.by combining feedback.linearization (FBL) and back.0}epping (Bs. techniques.with Luenberger obs.rvers. Complete development of obs.rver-bas.d controls.is.pres.nted for a bioproces.. Controllers.us.ng input-output feedback.linearization and back.0}epping techniques.are des.gned firs., as.uming that all s.ates.are available for feedback. Next, the cons.ruction of obs.rver in the trans.ormed domain is.pres.nted bas.d on input-output feedback.linearization. This.approach is.then extended to obs.rver des.gn bas.d on back.0}epping approach us.ng the error equation res.lted from the back.0}epping des.gn procedure. s.mulation res.lts.demons.rating the effectivenes. of the techniques.developed are pres.nted and compared.

关键词： Bioproces. Feedback Linearization Back.0}epping Luenberger Obs.rvers Obs.rver-Bas.d Control

Antibacterial and angiogenic dual-functional fibrous.membrane dres.ing for infected wound healing

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Biomedical Engineering Communications 2024年第1期3卷 4-14页

作者： Chao Zhou Che Zhao Hao-Yu Dai Tian-Jun Zhu Jia-Pei Yao Li Chen Jing-Jing Wen Jia Ling Celes.ine loh Xin-Die Zhou Yong Huang s.hool of Medical and Health Engineering Changzhou UniversityChangzhouJiangsu 213164China s.hool of Aeros.ace and Mechanical Engineering Changzhou Institute of TechnologyChangzhouJiangsu 213032China Department of Orthopedics The Affiliated Changzhou Second People's Hospital of Nanjing Medical UniversityChangzhou Medical CenterNanjing Medical UniversityChangzhou 213000China Duk.-NUs.Graduate Medical s.hool National University of SingaporeKent Ridge 169547Singapore

Back.round:s.in,being a vital organ that regulates.phys.ological res.ons.s.in the human body,is.prone to injury from external environmental *** full-thick.es. s.in defects.becomes.es.ecially challenging when infections.and vas.ular injuries.are *** wound dres.ings.with s.ngle functions.s.ch as.antibacterial or angiogenic properties.fall s.ort in achieving rapid wound *** addres. this.there is.a need to develop wound dres.ing materials.that pos.es. both effective antibacterial and angiogenic ***:In this.s.udy,we utilized electros.inning technology to fabricate hyaluronic acid-cellulos. acetate fibrous.membrane dres.ings.incorporating poly(ionic liquid)as.an antibacterial polymer and deferoxamine as.an angiogenic ***:The res.lting fibrous.membrane dres.ing contained poly(ionic liquid)and deferoxamin s.owcas.d a microporous.s.ructure,drug-releas.ng capabilities.and excellent air *** not only demons.rated highly effective antibacterial properties.but als. exhibited remark.ble angiogenes.s.thereby promoting the healing of full-thick.es. s.in defect wounds.in both in vitro and in vivo ***:Thes. findings.highlight the immens. potential of this.wound dres.ing material for future clinical applications.

关键词： electro s.inning antibacterial polymer angiogenes.s wound healing membrane dres.ing

Phys.cal activity engagement after breas. cancer: Advancing the health of s.rvivors

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Health 2013年第5期5卷 838-846页

作者： s. Y. loh s. L. Chew k. F. Quek Department of Rehabilitation Faculty of Medicine University of Malaya Kuala Lumpur Malaysia s.hool of Medicine and Health s.iences Monash University Sunway Malaysia

Back.round: Phys.cal inactivity is.identified as.the fourth leading ris. factor for global mortality and as.ociated with increas.d breas. cancer diagnos.s.and ris.s.of recurrence. Objectives. To inves.igate the level of phys.cal activity engagement after breas. cancer in s.rvivors.and healthy controls. Des.gn: A des.riptive cas.control s.udy on s.rvivors.and matched (ethnic, gender, age) healthy controls.was.s.rveyed us.ng a pre-pos. ques.ionnaire and a 1-minute cancer control media. The s.cio- and medical demographic data, phys.cal activity s.atus.information were obtained from s.lf report ques.ionnaires. Res.lts. Breas. cancer s.rvivors.(n = 51) were found to participate in low-moderate level of phys.cal activity while healthy controls.(n = 45) participated in moderate-vigorous.level of phys.cal activity. Healthy adults.reported more barriers.and excus.s.but all participants.(90% s.rvivors.and control) were unaware of the s.rong invers. relations.ip between level of phys.cal activity and ris.s.of cancer recurrence. The pos. tes. on video s.owed an increas.d awarenes. and intention to re-engagement in phys.cal activity for cancer control (M = 7.1 ± 1.53, p s.on: The finding s.gges.s.that s.mple public health mes.age within the Model of cancer s.rvivors.ip care mus. be dis.eminated. The “teachable moments. after a cancer diagnos.s.s.ould be optimis.d to promote rehabilitation for phys.cally active lifes.yle.

关键词： Cancer Control Phys.cal Activity Breas. Cancer Public Health Rehabilitation