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A Lightw.ight Multiscale Feature Fusion Netw.rk for Solar Cell Defect Detection

Computers, Materials & Continua 2025年第1期82卷 521-542页

作者： Xiaoy.n Chen Lany.o zhang Xiaoling Chen y.gang Cen Linna zhang Fugui zhang School of Mechanical Engineering Guizhou UniversityGuiyang550025China School of Computer Science and Technology Beijing Jiaotong UniversityBeijing100044China

Solar cell defect detection is crucial for quality.inspection in photovoltaic pow.r generation *** the production process,defect samples occur infrequently.and exhibit random shapes and sizes,w.ich makes it challenging to collect defective ***,the complex surface background of poly.ilicon cell w.fers complicates the accurate identification and localization of defective *** paper proposes a novel Lightw.ight Multiscale Feature Fusion netw.rk(LMFF)to address these *** netw.rk comprises a feature extraction netw.rk,a multi-scale feature fusion module(MFF),and a segmentation ***,a feature extraction netw.rk is proposed to obtain multi-scale feature outputs,and a multi-scale feature fusion module(MFF)is used to fuse multi-scale feature information *** order to capture finer-grained multi-scale information from the fusion features,w. propose a multi-scale attention module(MSA)in the segmentation netw.rk to enhance the netw.rk’s ability.for small target ***,depthw.se separable convolutions are introduced to construct depthw.se separable residual blocks(DSR)to reduce the model’s parameter ***,to validate the proposed method’s defect segmentation and localization performance,w. constructed three solar cell defect detection datasets:SolarCells,SolarCells-S,and *** and SolarCells-S are monocry.talline silicon datasets,and PVEL-S is a poly.ry.talline silicon *** results show.that the IOU of our method on these three datasets can reach 68.5%,51.0%,and 92.7%,respectively.and the F1-Score can reach 81.3%,67.5%,and 96.2%,respectively.w.ich surpasses other commonly.usedmethods and verifies the effectiveness of our LMFF netw.rk.

关键词： Defect segmentation multi-scale feature fusion multi-scale attention depthw.se separable residual block

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Bilevel Optimal Scheduling of Island Integrated Energy.Sy.tem Considering Multifactor Pricing

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Energy.Engineering 2025年第1期122卷 349-378页

作者： Xin zhang Mingming y.o Daiw.n He Jihong zhang Peihong y.ng Xiaoming zhang School of Automation and Electrical Engineering Inner Mongolia University of Science and TechnologyBaotou014010China

In this paper,a bilevel optimization model of an integrated energy.operator(IEO)–load aggregator(LA)is constructed to address the coordinate optimization challenge of multiple stakeholder island integrated energy.sy.tem(IIES).The upper level represents the integrated energy.operator,and the low.r level is the electricity.heatgas load *** to the benefit conflict betw.en the upper and low.r levels of the IIES,a dy.amic pricing mechanism for coordinating the interests of the upper and low.r levels is proposed,combined w.th factors such as the carbon emissions of the IIES,as w.ll as the low.r load interruption *** price of selling energy.can be dy.amically.adjusted to the low.r LA in the mechanism,according to the information on carbon emissions and load interruption *** benefits and w.n-w.n situations are achieved betw.en the upper and low.r ***,CPLEX is used to iteratively.solve the bilevel optimization *** optimal solution is selected according to the joint optimal discrimination *** results indicate that the sourceload coordinate operation can reduce the upper and low.r operation *** the proposed pricingmechanism,the carbon emissions and load interruption pow.r of IEO-LA are reduced by.9.78%and 70.19%,respectively.and the capture pow.r of the carbon capture equipment is improved by.36.24%.The validity.of the proposed model and method is verified.

关键词： Bilevel optimal scheduling load aggregator integrated energy.operator carbon emission dy.amic pricing mechanism

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Propagating subduction initiation of the Caroline Plate at the Mussau Trench

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Science China Earth Sciences 2025年第1期68卷 253-269页

作者： Chun-Feng LI y.ngkang DENG Tao w. Dongdong DONG Guoliang zhang Jiazheng zhang y.tao LIU y.qing LI Fugui TANG Lulu zhang Department of Marine Sciences Zhejiang University Laboratory.of Marine Mineral Resources Laoshan Laboratory Key.Lab of Marine Geology.and Environment Institute of Oceanology Chinese Academy of Sciences Key.Lab of Ocean and Marginal Sea Geology South China Sea Institute of Oceanology Chinese Academy of Sciences Science & Technology.on Integrated Information Sy.tem Lab Institute of Software Chinese Academy of Sciences

New.seismic imaging from the Mussau Trench confirms that, under horizontal compression on an oceanic plate boundary. it is w.thin the y.ung and w.ak oceanic plate that a trench w.ll develop, and it is the y.ung plate, not so long after its birth, that starts to subduct tow.rd the old plate. The Mesozoic Pacific Plate cannot easily.bend, under the joint horizontal compression and vertical gravity.pull, even w.th a pre-existing w.ak zone in place and w.th a large age offset across the plate boundary. The bending of the Caroline Plate near the northern end of the Mussau Trench started only.after a long-time span of trench migration, and/or after a prolonged transition from initial compression to trench development. Highly.contrasting trench deformation and sedimentary.accretion betw.en tw. parallel seismic sections support an evident migration of underthrusting or significant longitudinal heterogeneity.along the trench. The sw.ft transition from underthrusting to non-thrusting can be explained by.a counter-clockw.se rotation of the Caroline Plate. That miniature accretionary.w.dges develop even before the subduction initiates imply.strong compression and uplifting before the underthrusting can kick-start. Rotation of the Caroline Plate have been halted as the Mussau Trench is seismically.rather quiet and the Ly.a Trough to the east show. relaxational extension.

关键词： Mussau Trench Subduction initiation Seismic reflection Caroline Plate

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HNRNPC as a pan-cancer biomarker and therapeutic target involved in tumor progression and immune regulation

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Oncology.Research 2025年第1期33卷 83-102页

作者： y.EZHOU zhang ZHAO zhang JINXIN DONG CHANGAN LIU Department of Hepatobiliary.Surgery The Second Affiliated Hospital of Chongqing Medical UniversityChongqing400016China Department of Hepatobiliary.Surgery The First Affiliated Hospital of Chongqing Medical UniversityChongqing400016China

Background:Aberrant expression of RNA-binding proteins(RBPs)has been linked to a variety.of diseases,including hematological disorders,cardiovascular diseases,and multiple ty.es of *** nuclear ribonucleoprotein C(HNRNPC),a member belonging to the heterogeneous nuclear ribonucleoprotein(hnRNP)family.play. a pivotal role in nucleic acid *** studies have underscored the significance of HNRNPC in tumorigenesis;how.ver,its specific role in malignant tumor progression remains inadequately.***:w. leveraged publicly.available databases,including The Cancer Genome Atlas(TCGA),to explore the potential involvement of HNRNPC across various ***,w. performed experimental validation studies focused on liver ***:Our analy.is revealed that HNRNPC is overexpressed in a w.de range of common malignancies,including liver and lung cancers,and is strongly.linked to unfavorable ***,HNRNPC w.s observed to be closely.linked to tumor *** immune checkpoint analy.is and immune cell infiltration assessment,HNRNPC emerged as a potential target for modulating tumor ***,silencing of HNRNPC markedly.inhibited the proliferation,metastasis,and infiltration of liver cancer ***:In summary.our findings highlight HNRNPC as a prognostic marker in various cancers,including liver cancer,and suggest its involvement in shaping the tumor immune *** insights offer potential avenues for improving clinical outcomes in tumors w.th elevated HNRNPC expression,particularly.through immunotherapeutic strategies.

关键词： Heterogeneous nuclear ribonucleoprotein C(HNRNPC) Pan-cancer analy.is Tumor immunity Prognostic biomarker Immunotherapeutic target Hepatocellular carcinoma

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Control of Corner Separation for a Linear Compressor Cascade via Bionic Slanting Riblets at the Endw.ll

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Journal of Thermal Science 2025年第1期34卷 129-144页

作者： zhang Peng LI y.nghong CHENG Rixin Key.Laboratory.of Civil Aircraft Airw.rthiness Technology Civil Aviation University of China College of Aeronautical Engineering Civil Aviation University of China

A new.passive control approach,utilizing bionic slanting riblets,is employ.d to mitigate the flow.close to the blade endw.ll in a linear cascade,and its effectiveness and mechanism in controlling corner separation are investigated through numerical *** slanting riblets are positioned at the endw.ll upstream of the cascade channel,and the influence of riblet height,y.w.angle and relative position on the control of corner separation is *** findings indicate that the application of slanting riblets can efficiently.counteract corner separation across the stable operational ***,the introduction of riblets w.th a height of merely.0.1 times the boundary.lay.r thickness results in a significant reduction in total pressure loss by.up to 14.53%,w.ile simultaneously.enhancing the static pressure coefficient by.21.74%.Flow.analy.is reveals that minute vortices produced w.thin the riblet channels tend to coalesce,forming a potent large-scale vortex near the boundary.lay.r's base *** phenomenon results in reduced additional losses compared to conventional vortex ***,the induced vortex promotes enhanced mixing betw.en the mainstream flow.and boundary.lay.r,inhibiting the lateral displacement of low.energy.fluids w.thin the endw.ll boundary.***,this delay. the onset of separation vortex formation and eliminates vortex rings in the corner region,ultimately.enhancing the aerody.amic efficiency.of the cascade.

关键词： additional losses compressor cascade corner separation slanting riblets vortex generator

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Preparation of silver nanoparticles through the reduction of straw.extracted lignin and its antibacterial hy.rogel

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International Journal of Minerals,Metallurgy.and Materials 2025年第2期32卷 504-514页

作者： Lou zhang Shuo Li Fu Tang Jingkai zhang y.etong Kang Hean zhang Lidong Li State Key.Laboratory.for Advanced Metals and Materials School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China

Silver nanoparticles(Ag NPs)have attracted attention in the field of biomaterials due to their excellent antibacterial ***,the reducing and stabilizing agents used for the chemical reduction of Ag NPs are usually.toxic and may.cause w.ter *** this w.rk,Ag NPs(31.2 nm in diameter)w.re prepared using the extract of straw.an agricultural w.ste,as the reducing and stabilizing *** analy.is revealed that the straw.extract contained lignin,the structure of w.ich possesses phenolic hy.roxy. and methoxy.groups that facilitate the reduction of silver salts into Ag *** surfaces of Ag NPs w.re negatively.charged due to the encapsulation of a thin lay.r of lignin molecules that prevented their *** the prepared Ag NPs w.re added to the precursor solution of acry.amide,free radical poly.erization w.s triggered w.thout the need for extra heating or light irradiation,resulting in the rapid formation of an Ag NP-poly.cry.amide composite *** inhibition zone test proved that the composite hy.rogel possessed excellent antibacterial ability.due to the presence of Ag *** prepared hy.rogel may.have potential applications in the fabrication of biomedical materials,such as antibacterial dressings.

关键词： silver nanoparticles hy.rogel straw extraction antibacterial

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Structural and microw.ve absorption properties of CoFe_(2)O_(4)/residual carbon composites

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International Journal of Minerals,Metallurgy.and Materials 2025年第1期32卷 221-232页

作者： y.anchun zhang Shengtao Gao Xingzhao zhang Dacheng Ma Chuanlei Zhu Jun He Joint National-Local Engineering Research Centre for Safe and Precise Coal Mining Anhui University of Science and TechnologyHuainan 232001China School of Chemical and Blasting Engineering Anhui University of Science and TechnologyHuainan 232001China

Electromagnetic interference,w.ich necessitates the rapid advancement of substances w.th exceptional capabilities for bsorbing electromagnetic w.ves,is of urgent concern in contemporary.*** this w.rk,CoFe_(2)O_(4)/residual carbon from coal gasification fine slag(CFO/RC)composites w.re created using a novel hy.rothermal *** mechanisms for microw.ve absorption,including conductive loss,natural resonance,interfacial dipole polarization,and magnetic flux loss,are involved in these ***,compared w.th pure residual carbon materials,this composite offers superior capabilities in microw.ve *** 7.76GHz,the CFO/RC-2 composite achieves an impressive minimum reflection loss(RL_(min))of-43.99 dB w.th a thickness of 2.44 ***,CFO/RC-3 demonstrates an effective absorption bandw.dth(EAB)of up to 4.16 GHz,accompanied by.a thickness of *** study.revealed the remarkable capability.of the composite to diminish electromagnetic w.ves,providing a new.generation method for microw.ve absorbing materials of superior quality.

关键词： coal gasification slag residual carbon hy.rothermal method microw.ve absorption CoFe_(2)O_(4)

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Nano high-entropy.oxide cathode w.th enhanced stability.for direct borohy.ride fuel cells

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Journal of Energy.Chemistry 2025年第1期100卷 309-316页

作者： Lei zhang Lingfeng Kuang Lianke zhang w.n Chu Haiy.ng Qin Jing zhang Junjing He Hualiang Ni Hongzhong Chi New.Energy.Materials Research Center College of Materials and Environmental Engineering Hangzhou Dianzi University School of Materials Science and Engineering Zhejiang University Key.Laboratory.of MEMS of Ministry.of Education School of Integrated Circuits Southeast University

High-entropy.materials have become high-activity.electrocataly.is ow.ng to their high-entropy.effect and multiple active ***,w. sy.thesize a series of carbon-supported nano high-entropy.oxides（HEOs/C）,specifically.（PtFeCoNiCu）O/C,using a carbothermal shock （CTS） method for application as a cathode cataly.t in direct borohy.ride fuel cells （DBFCs）.The microstructure of the prepared cataly.ts w.s characterized by.X-ray.photoelectron spectroscopy.X-ray.absorption fine structure,and transmission electron *** prepared （PtFeCoNiCu）O/C,w.th particle sizes ranging from 2 to 4 nm,demonstrates 3.94 transferred electrons tow.rds the oxy.en reduction reaction in an alkaline environment,resulting in a minimal H2O2y.eld of 2.6%.Additionally.it exhibits a Tafel slope of 61 mV dec-1,surpassing that of commercial Pt/C (82 mV dec-1).Furthermore,after 40,000 cy.les of cy.lic voltammetry.CV） testing,the half-w.ve potential of （PtFeCoNiCu）O/C show. a positive shift of 3 mV,w.th no notable decline in the limiting current *** （PtFeCoNiCu）O/C is used as a cathode cataly.t in DBFCs,the DBFC achieves a maximum pow.r density.of 441 mw.cm-2at 60°C and sustains a cell voltage of approximately.0.73 V after 52 h at 30°*** findings confirm that HEO/C is a promising cathode cataly.t for DBFCs.

关键词： Direct borohy.ride fuel cells (DBFC)

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Depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite

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International Journal of Minerals,Metallurgy.and Materials 2025年第2期32卷 335-345页

作者： Feng zhang Cheny.ng zhang Linlin w. w.i Sun Hongliang zhang Jianhua Chen y.ng Pei Songjiang Li Engineering Research Center of Ministry.of Education for Carbon Emission Reduction in Metal Resource Exploitation and Utilization Hunan International Joint Research Center for Efficient and Clean Utilization of Critical Metal Mineral ResourcesSchool of Minerals Processing and BioengineeringCentral South UniversityChangsha 410083China State Key.Laboratory.of Mineral Processing Beijing General Research Institute of Mining&MetallurgyBeijing 100160China Hunan Provincial Key.Laboratory.of Micro&Nano Materials Interfaces Science College of Chemistry and Chemical EngineeringCentral South UniversityChangsha 410083China School of Resources Environment and MaterialsGuangxi UniversityNanning 530004China Department of Chemistry Xiangtan UniversityXiangtan 411105China China Railw.y.Resource Group Co.Ltd Beijing 102300China

The depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite still lacked in-depth ***,the depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite w.s further sy.tematically.investigated w.th experiments and density.functional theory.DFT)*** X-ray.photoelectric spectroscopy.XPS)results,DFT calculation results,and frontier molecular orbital analy.is indicated that sulfite ions w.re difficult to be adsorbed on sphalerite surface,suggesting that sulfite ions achieved depression effects on sphalerite through other non-adsorption ***,the oxy.en content in the surface of sphalerite treated w.th sulfite ions in creased,w.ich enhanced the hy.rophilicity.of the sphalerite and further increased the difference in hy.rophilicity.betw.en sphalerite and ***,sulfite ions w.re chelated w.th lead ions to form PbSO_(3)in *** hy.rophilic PbSO_(3)w.s more easily.adsorbed on sphalerite than *** interaction betw.en sulfite ions and lead ions could effectively.inhibit the activation of *** addition the UV spectrum show.d that after adding sulfite ions,the peak of perxanthate in the sphalerite treated xanthate solution w.s significantly.stronger than that in the galena w.th xanthate solution,indicating that xanthate interacted more readily.w.th sulfite ions and oxy.en mo lecules w.thin the sphalerite sy.tem,leading to the formation of ***,sulfite ions hardly.depressed the flotation of ga lena and could promote the flotation of galena to some *** study.deepened the understanding of the depression mechanism o sulfite ions on sphalerite and Pb^(2+)activated sphalerite.

关键词： sphalerite galena sulfite ion density.functional theory depression mechanism

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Isobaric enzy.atic assay. reveal depth-dependent variation in microbial ectoenzy.e activities in the deepest ocean on Earth

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Science China Earth Sciences 2025年第1期68卷 185-194页

作者： Junw.i CAO Jiahua w.NG Hongge zhang Junhao DENG Binbin PAN Jiaw.ng CHEN Li zhang Jiasong FANG College of Oceanography.and Ecological Science Shanghai Ocean University Ocean College Zhejiang University Laboratory.for Marine Biology.and Biotechnology Qingdao National Laboratory for Marine Science and Technology

Microbial ectoenzy.es play.essential roles in the transformation and mineralization of organic matter in the ***, conventional methods for measuring microbial ectoenzy.e activities(MEAs) in the deep ocean under atmospheric conditions can misrepresent the metabolic activities of indigenous microbial communities. To overcome this limitation, w. measured the activities of three microbial ectoenzy.es(aminopeptidase, α-glucosidase, and β-glucosidase) under both atmospheric and in situ pressure conditions in seaw.ter collected using pressure-retaining and non-pressure-retaining samplers in the Challenger Deep, Mariana Trench. In the case of aminopeptidase and α-glucosidase, the highest isobaric MEAs w.re observed in the surface lay.r(50 m), follow.d by.those at aby.sopelagic depths(4,000–6,000 m) for aminopeptidase, hadal realm(10,903 m)for α-glucosidase, w.ile β-glucosidase activity.exhibited the highest value at 10,903 m. Furthermore, the isobaric MEAs in hadal w.ters w.re commonly.found to be higher than the decompressed counterparts, highlighting the importance of pressure-retaining sampling and isobaric enzy.atic assay.. The half-saturation constant(Km) show.d a general decreasing trend w.th depth,suggesting that the deep ocean microbes might have adapted to the high-pressure and oligotrophic environment by.increasing their ectoenzy.e's affinity.to substrate. Furthermore, particle-free MEAs contribute more to the total MEAs in the deep ocean than particle-associated MEAs, suggesting the significance of cell-associated and dissolved ectoenzy.es in ocean *** study.provides a foundation for future investigations of MEAs in the ocean and has important implications for understanding the dy.amics of microbially.mediated biogeochemical cy.ling in marine ecosy.tems.

关键词： Pressure-retaining sampling Microbial ectoenzy.e activity Deep-sea microbes High pressure Mariana Trench

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