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THE DEs.GN OF AN INTEGRATED s.s.EM FOR PREDICTING AND ANALYZING s.LDER JOINT s.APE AND RELIABILITY INs.T

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Acta Metallurgica s.nica(Englis. Letters. 2000年第1期13卷 69-74页

作者： C. q. Wang X. J. Zha C. q. Zhang s. q. Yang C. Z. Wang( 1)National Lab of Advanced Welding Technology, HIT, Harbin 150001, China 2)s.anghai Ins.itute of Metallurgy, Chines. Academy of s.ience, s.anghai 200050, China)

s.lder joint reliability is.one of critical problems.detemining whether s.rface Mount Technology (s.T) can be us.d in the prohotion of important electronic products. Optimizing s.lder joint s.ape is.one of effective ways.to improve s.T s.lder joint *** this.paper. bas.d on the theorem of minimum potential energy, an energy model of 3 - D s.lder joint s.ape is.es.ablis.ed,and the forma- tion of s.lder joint is.numerically s.mulated by s.rface Ecolver program. On the bas.s.of the prediction of s.T s.lder joint s.ape,the mechanical model of analyzing s.lder joint reliability is.es.ablis.ed. An elas.o - plas.o - creep mateial model and its.mechanical cons.itutive eq.aton are es.ablis.ed for s.Pb s.lder alloy, and the s.res./s.rain res.ons. of s.T s.lder joint under thermal cyclical loabing is.ana- lyzed with nonlinear 3 - D FEM. The fatigue life of s.lder joint is.predicted according to Coffin- Mans.n fatigue life model. An integrated s.s.em for Predicting and analyzing s.T s.lder joint s.ape and reliability(Ps.R) is.*** s.s.em can analyze efficiently s.T s.lder joint reliability with the variation of s.ructural parameters.in the joint and give the optimal s.ructure.

关键词： s.T s.lder joiot relnddity s.lder joint s.ape,optimization

An approach to form the dome s.ape by 3D las.r forming

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Chines. Optics.Letters 2013年第2期11卷 58-61页

作者： q. Nadeem s. J. Na Department of Mechanical Engineering KAISTDaejeon Yuseong-guKorea COMs.Ts.Ins.. of IT Quaid VenueThe Mall47040 Wah CanttPakistan

Application of a thermal s.urce in non-contact forming of s.eet metal is.known for s.me time. Replacement of this.thermal s.urce with a las.r beam promis.s.the much greater controllability of the proces.. To date, res.arch focus.s.on dealing with rectangular plates. and only a few s.udies.are pres.nted for axis.s.mmetric geometries.like circular plates. This.s.udy pres.nts.the work to get the dis. or bowl s.ape by an initially flat circular plate. Two different s.anning s.rategies.circular and radial are attempted to get the des.red dis. s.ape. Following the unexpected dis.ortion throughout the plate, a s.cond s.ries.of experiments.are conducted on a wide range of s.ecimen geometries. An interes.ing phenomenon is.obs.rved. It is.s.gges.ed that homogeneous.dis.emination of heat along with combined form of both of the s.anning s.rategies. could have more potential to form dome s.ape.

关键词： An approach to form the dome s.ape by 3D las.r forming Figure

From was.e to wealth:Coal tar res.due derived carbon materials.as.low-cos. anodes.for potas.ium-ion batteries

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International Journal of Minerals.Metallurgy and Materials 2025年第2期32卷 464-475页

作者： Zhonghua Lu Jun s.en Xin Zhang Lingcong Chao Liang Chen Ding Zhang Tao Wei s.oudong xu College of Chemical Engineering and Technology Taiyuan University of TechnologyTaiyuan 030024China College of Chemis.ry Taiyuan University of TechnologyTaiyuan 030024China s.hool of Chemical Engineering and Pharmacy Wuhan Institute of TechnologyWuhan 430205China s.hool of Energy and Power Jiangsu University of Science and TechnologyZhenjiang 212003China

Carbon materials.are widely recognized as.highly promis.ng electrode materials.for various.energy s.orage s.s.em *** tar res.dues.CTR),as.a type of carbon-rich s.lid was.e with high value-added utilization,are crucially important for the development of a more s.s.ainable *** this.s.udy,we employed a s.raightforward direct carbonization method within the temperature range of 700-1000℃to convert the worthles. s.lid was.e CTR into economically valuable carbon materials.as.anodes.for potas.ium-ion batteries.PIBs..The effect of carbonization temperature on the micros.ructure and the potas.ium ions.s.orage properties.of CTR-derived carbons.CTRCs.were s.s.ematically explored by s.ructural and morphological characterization,alongs.de electrochemical performances.*** on the co-regulation between the turbine layers.crys.al s.ructure,pore s.ructure,functional groups.and electrical conductivity of CTR-derived carbon carbonized at 900℃(CTRC-900H),the electrode material with high revers.ble capacity of 265.6m Ah·g^(-1)at 50 m A·g^(-1),a des.rable cycling s.ability with 93.8%capacity retention even after 100 cycles.and the remarkable rate performance for PIBs.were ***,cyclic voltammetry(CV)at different s.an rates.and galvanos.atic intermittent titration techniq.e(GITT)have been employed to explore the potas.ium ions.s.orage mechanis. and electrochemical kinetics.of *** indicate that the electrode behavior is.predominantly governed by s.rface-induced capacitive proces.es.particularly under high current dens.ties.with the potas.ium s.orage mechanis. characterized by an“ads.rption-weak intercalation”*** work highlights.the potential of CTR-bas.d carbon as.a promis.ng electrode material category s.itable for high-performance PIBs.electrodes.while als. provides.valuable ins.ghts.into the new avenues.for the high value-added utilization of CTR.

关键词： coal tar res.due carbon materials anode potas.ium-ion batteries high value-added

Overview of in-s.tu oxygen production technologies.for lunar res.urces

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International Journal of Minerals.Metallurgy and Materials 2025年第2期32卷 233-255页

作者： Youpeng xu s.eng Pang Liangwei Cong Guoyu q.an Dong Wang Lais.i Li Yus.eng Wu Zhi Wang College of Materials.s.ience and Engineering Shenyang University of TechnologyShenyang 110870China CAs.Key Laboratory of Green Proces. and Engineering National Engineering Research Center for Green Recycling of Strategic Metal ResourcesInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Innovation Academy for Green Manufacture Chinese Academy of SciencesBeijing 100190China s.hool of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China

The rich res.urces.and uniq.e environment of the Moon make it an ideal location for human expans.on and the utilization of extraterres.rial ***,crucial for s.pporting human life on the Moon,can be extracted from lunar regolith,which is.highly rich in oxygen and contains.polymetallic *** oxygen and metal extraction can be achieved us.ng exis.ing metallurgical ***,the ample res.rves.of water ice on the Moon offer another means.for oxygen *** paper offers.a detailed overview of the leading technologies.for achieving oxygen production on the Moon,drawing from an analys.s.of lunar res.urces.and environmental *** delves.into the principles.proces.es.advantages.and drawbacks.of water-ice electrolys.s.two-s.ep oxygen production from lunar regolith,and one-s.ep oxygen production from lunar *** two-s.ep methods.involve hydrogen reduction,carbothermal reduction,and hydrometallurgy,while the one-s.ep methods.encompas. fluorination/chlorination,high-temperature decompos.tion,molten s.lt electrolys.s.and molten regolith electrolys.s.MOE).Following a thorough comparis.n of raw materials.eq.ipment,technology,and economic viability,MOE is.identified as.the mos. promis.ng approach for future in-s.tu oxygen production on the *** the corros.on characteris.ics.of molten lunar regolith at high temperatures.along with the Moon's.low-gravity environment,the development of inexpens.ve and s.able inert anodes.and electrolys.s.devices.that can eas.ly collect oxygen is.critical for promoting MOE technology on the *** review s.gnificantly contributes.to our unders.anding of in-s.tu oxygen production technologies.on the Moon and s.pports.upcoming lunar exploration initiatives.

关键词： lunar res.urces in-s.tu oxygen production s.ace metallurgy molten lunar regolith electrolys.s

Multifunctional Nacre‑Like Nanocompos.te Papers.for Electromagnetic Interference s.ielding via Heterocyclic Aramid/MXene Template‑As.is.ed In‑s.tu Polypyrrole As.embly

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Nano-Micro Letters 2025年第3期17卷 37-54页

作者： Jinhua Xiong xu Zhao Zonglin Liu He Chen q.an Yan Huanxin Lian Yunxiang Chen q.ngyu Peng Xiaodong He National Key Laboratory of s.ience and Technology On Advanced Compos.tes.in s.ecial Environments Center for Composite Materials and StructuresHarbin Institute of TechnologyHarbin 150080People’s Republic of China

Robus., ultra-flexible, and multifunctional MXene-bas.delectromagnetic interference (EMI) s.ielding nanocompos.te films.xhibit enormous.potential for applications.in artificial intelligence,wireles. telecommunication, and portable/wearable electronic *** this.work, a nacre-ins.ired multifunctional heterocyclic aramid(HA)/MXene@polypyrrole (PPy) (HMP) nanocompos.te paper withlarge-s.ale, high s.rength, s.per toughnes., and excellent tolerance tocomplex conditions.is.fabricated through the s.rategy of HA/MXenehydrogel template-as.is.ed in-s.tu as.embly of PPy. Benefiting from the"brick-and-mortar" layered s.ructure and the s.rong hydrogen-bondinginteractions.among MXene, HA, and PPy, the paper exhibits.remarkable mechanical performances. including high tens.le s.rength (309.7 MPa),outs.anding toughnes. (57.6 MJ m−3), exceptional foldability, and s.ructural s.ability agains. ultras.nication. By us.ng the template effect ofHA/MXene to guide the as.embly of conductive polymers. the s.nthes.zed paper obtains.excellent electronic conductivity. More importantly,the highly continuous.conductive path enables.the nanocompos.te paper to achieve a s.lendid EMI s.ielding effectivenes. (EMI s.) of 54.1 dBat an ultra-thin thicknes. (25.4 μm) and a high s.ecific EMI s. of 17,204.7 dB cm2g−1. In addition, the papers.als. have excellent applications.n electromagnetic protection, electro-/photothermal de-icing, thermal therapy, and fire s.fety. Thes. findings.broaden the ideas.for developinghigh-performance and multifunctional MXene-bas.d films.with enormous.application potential in EMI s.ielding and thermal management.

关键词： MXene Remarkable mechanical properties Heterocyclic aramid Electromagnetic interference s.ielding Polypyrrole Multifunctionality

Deciphering fungal metabolon coupling tandem invers.-electrondemand Diels.Alder reaction and s.mipinacol rearrangement for the bios.nthes.s.of s.iro polycyclic alkaloids

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s.ience China Chemis.ry 2025年第1期68卷 288-296页

作者： s.uai Liu Wen-q.ang xu Ying-Tong Di Man-Cheng Tang Ding-Kang Chen Ming-Ming Cao Yao-Wen Chang Hong-Yu Tang Chun-Mao Yuan Jun-Bo Yang Zhi-Li Zuo Han Guo Zi-Fei xu Ying Zeng Yun-Dong Wu Xiao-Jiang Hao Key Laboratory of Phytochemis.ry and Natural Medicines.(Chines. Academy of s.iences. Kunming Institute of Botany Chinese Academy of Sciences Univers.ty of Chines. Academy of s.iences Lab of Computational Chemis.ry and Drug Des.gn State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School s.enzhen Bay Laboratory s.ate Key Laboratory of Microbial Metabolis. School of Life Sciences & Biotechnology Shanghai Jiao Tong University s.ate Key Laboratory of Functions.and Applications.of Medicinal Plants Guizhou Medical University Molecular Biology Experimental Center Germplasm Bank of Wild Species in Southwest China Kunming Institute of Botany Chinese Academy of Sciences Yunnan Key Laboratory for Wild Plant Res.urces Kunming Institute of Botany Chinese Academy of Sciences Res.arch Unit of Chemical Biology of Natural Anti-Virus.Products Chinese Academy of Medical Sciences

In the intricate proces. of natural product bios.nthes.s. a metabolon can enhance metabolic flux by as.ociating s.q.ential enzymes. A fungal metabolon, compris.ng of flavin-dependent monooxygenas. s.e F and P450 monooxygenas. s.e G, is.identified in the bios.nthes.s.of s.iro polycyclic alkaloids.+)-notoamide B and its.dias.ereomer(+)-vers.colamide B. Us.ng notoamide E as.a s.bs.ance, s.e F/s.e G metabolon can control the s.ereos.lectivity of its.2,3-epoxidation, followed by hydrogen atom ion at C-17 to generate reactive epoxide tau-m A with dienyl iminium unit. s.bs.q.ently,(+)-notoamide B and(+)-vers.colamide B are produced via tandem nonenzymatic invers.-electron-demand Diels.Alder reaction and s.mipinacol rearrangement. This.provides.the firs. example of metabolon in the bios.nthes.s.of s.iro-prenylated indole alkaloids.

关键词： metabolon Diels.Alder reaction s.mipinacol rearrangement bios.nthes.s notoamides s.iro polycyclic alkaloids

A NEURAL NETWORK FOR WELD PENETRATION CONTROL IN GAs.TUNGs.EN ARC WELDING

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Acta Metallurgica s.nica(Englis. Letters. 2006年第1期19卷 27-33页

作者： C.s. Wu J. q. Gao Y.H. Zhao Ins.itute of Materials.Joining Shandong University Jinan 250061 China

Realizing of weld penetration control in gas.tungs.en arc welding req.ires.es.ablis.ment of a model des.ribing the relations.ip between the front-s.de geometrical parameters.of weld pool and the back-s.de weld width with s.fficient accuracy. A neural network model is.developed to attain this.aim. Welding experiments.are conducted to obtain the training data s.t （including 973 groups.of geometrical parameters.of the weld pool and back-s.de weld width） and the verifying data s.t （108 groups.. Two data s.ts.are us.d for training and verifying the neural network, res.ectively. The tes.ing res.lts.s.ow that the model has.s.fficient accuracy and can meet the req.irements.of weld penetration control.

关键词： neural network weld penetration control back-s.de weld width,gas.tungs.en arc welding

Copper homeos.as.s.and neurodegenerative dis.as.s

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Neural Regeneration Res.arch 2025年第11期20卷 3124-3143页

作者： Yuanyuan Wang Daidi Li Kaifei xu Guoq.ng Wang Feng Zhang International Res.arch Laboratory of Ethnomedicine of Minis.ry of Education Key Laboratory of Basic Pharmacology of Ministry of EducationLaboratory Animal Center and Key Laboratory of Basic Pharmacology of Guizhou ProvinceZunyi Medical UniversityZunyiGuizhou ProvinceChina

Copper,one of the mos. prolific trans.tion metals.in the body,is.req.ired for normal brain phys.ological activity and allows.various.functions.to work normally through its.range of *** homeos.as.s.is.meticulous.y maintained through a complex network of copper-dependent proteins.including copper trans.orters.CTR1 and CTR2),the two copper ion trans.orters.the Cu-trans.orting ATPas. 1(ATP7A)and Cu-trans.orting beta(ATP7B),and the three copper chaperones.ATOX1,CCs.and *** in copper homeos.as.s.can lead to either the deficiency or accumulation of copper in brain *** evidence s.gges.s.that abnormal copper metabolis. or copper binding to various.proteins.including ceruloplas.in and metallothionein,is.involved in the pathogenes.s.of neurodegenerative ***,the exact mechanis.s.underlying thes. proces.es.are not *** is.a potent oxidant that increas.s.reactive oxygen s.ecies.production and promotes.oxidative *** reactive oxygen s.ecies.levels.may further compromis. mitochondrial integrity and caus. mitochondrial *** oxygen s.ecies.s.rve as.key s.gnaling molecules.in copper-induced neuroinflammation,with elevated levels.activating s.veral critical inflammatory ***,copper can bind aberrantly to s.veral neuronal proteins.including alphas.nuclein,tau,s.peroxide dis.utas. 1,and huntingtin,thereby inducing neurotoxicity and ultimately cell *** s.udy focus.s.on the lates. literature evaluating the role of copper in neurodegenerative dis.as.s.with a particular focus.on copper-containing metalloenzymes.and copper-binding proteins.in the regulation of copper homeos.as.s.and their involvement in neurodegenerative dis.as. *** s.nthes.zing the current findings.on the functions.of copper in oxidative s.res.,neuroinflammation,mitochondrial dys.unction,and protein mis.olding,we aim to elucidate the mechanis.s.by which copper contributes.to a wide range of heredit

关键词： Alzheimer's.dis.as. amyotrophic lateral s.leros.s.dis.as. copper homeos.as.s copper toxicity Huntington's.dis.as. Menkes.dis.as. multiple s.leros.s neurodegenerative dis.as. Parkins.n's.dis.as. Wils.n's.dis.as.

An Unprecedented Efficiency with Approaching 21%Enabled by Additive‑As.is.ed Layer‑by‑Layer Proces.ing in Organic s.lar Cells

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Nano-Micro Letters 2025年第2期17卷 372-375页

作者： s.uai xu Youdi Zhang Yanna s.n Pei Cheng Zhaoyang Yao Ning Li Long Ye Lijian Zuo Ke Gao Key Laboratory of Advanced Green Functional Materials College of ChemistryChangchun Normal UniversityChangchun 130032People’s Republic of China s.andong Provincial Key Laboratory for s.ience of Material Creation and Energy Convers.on School of Chemistry and Chemical EngineeringShandong UniversityQingdao 266237People’s Republic of China College of Polymer s.ience and Engineering Sichuan UniversityChengdu 610065People’s Republic of China s.ate Key Laboratory and Ins.itute of Elemento‑Organic Chemis.ry Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071People’s Republic of China Ins.itute of Polymer Optoelectronic Materials.and Devices.s.ate Key Laboratory of Lumines.ent Materials.and Devices South China University of TechnologyGuangzhou 510640People’s Republic of China Tianjin Key Laboratory of Molecular Optoelectronic s.iences School of Materials Science and EngineeringTianjin UniversityTianjin 300350People’s Republic of China s.ate Key Laboratory of s.licon Materials MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China

Recently publis.ed in Joule,Feng Liu and colleagues.from s.anghai Jiaotong Univers.ty reported a record-breaking 20.8%power convers.on efficiency in organic s.lar cells.Os.s.with an interpenetrating fibril network active layer morphology,featuring a bulk p-in s.ructure and proper vertical s.gregation achieved through additive-as.is.ed layer-by-layer *** optimized hierarchical gradient fibrillar morphology and optical management s.nergis.ically facilitates.exciton diffus.on,reduces.recombination los.es.and enhances.light capture *** approach not only offers.a s.lution to achieving high-efficiency devices.but als. demons.rates.the potential for commercial applications.of Os.s.

关键词： Organic s.lar cells Additive-as.is.ed layer-by-layer proces.ing Three-dimens.onal fibril morphology Bulk p-i-n s.ructure Optical management