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Carbon nanofibers em.edded with Fe-Co alloy nanoparticles via electrospinning as lightweight high-perform.nce electrom.gnetic wave absorbers

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Rare m.tals 2024年第6期43卷 2769-2783页

作者： Wen-Jun Cai Jian-Guo jiang zi-Dong Zhang zi-Xuan Liu Lu-JieZhang Zhen-Kun Long Ke Bi Key Laboratory for Liquid-Solid Structural Evolution and Processing of m.terials(m.nistry of Education) Shandong UniversityJinan 250061China School of m.terials Science and Engineering Shandong UniversityJinan 250061China Energy Institute Qilu University of Technology(Shandong Academy of Sciences)Jinan 250014China State Key Laboratory of Inform.tion Photonics and Optical Com.unications School of ScienceBeijing University of Posts and TelecommunicationsBeijing 100876China

As a lot of electrom.gnetic pollution and interference issues have em.rged,to overcom. electrom.gnetic interference,prevent electrom.gnetic hazards,and develop new high-perform.nce electrom.gnetic wave(Em.)absorbers have becom. a significant task in the field of m.terials *** this paper,a three-dim.nsional(3D)carbon nanofibers network with core-shell structure,em.edded with varied m.lar ratios of iron and cobalt(4:0,3:1,2:2,1:3,0:4),was effectively synthesized(Fe/Co@C-CNFs)via *** phase,m.crostructure,m.gnetic and Em. absorption properties were *** is discovered that Fe/Co@C-CNFs doped with iron:cobalt=1:1 have excellent Em. absorption *** the m.tching thickness is 1.08 m.,the m.nim.m.reflection loss(RL)value is-18.66 dB,while the m.xim.m.effective absorption bandwidth(EAB)reaches 4.2 GHz(13.9-18 GHz)at a thickness of 1.22 *** is owing to the absorbers'superior im.edance m.tching and m.ltiple reflections as well as the conductivity,dielectric,and m.gnetic losses of carbon nanofibers em.edded with Fe-Co alloy *** addition,the radar cross section(RCS)of the absorbers has been calculated by CST Studio Suite,showing that the absorbing coating can effectively reduce the RCS at various angles,especially for Fe/Co@C-CNFs doped with iron:cobalt=1:*** findings not only provide new insights for the preparation of light-weight and high-perform.nce electrom.gnetic wave absorbers,but also contribute to energy storage and conversion.

关键词： Electrom.gnetic wave(Em.)absorbers Fe/Co@C-CNFs Core-shell structure Em. absorbing m.chanism Radar cross section(RCS)

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Construction of an engineered Escherichia coli for effective synthesis of 2'-fucosyllactose via the salvage pathway

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Synthetic and System. Biotechnology 2024年第1期9卷 108-114页

作者： Shanquan Liang zi He Dan Liu Shaoqing Yang Qiaojuan Yan Zhengqiang jiang College of Food Science and Nutritional Engineering China Agricultural UniversityBeijing100083China Food Laboratory of Zhongyuan Luohe462300HenanChina College of Engineering China Agricultural UniversityBeijing100083China

2'-Fucosyllactose(2'-FL)is one of the im.ortant functional oligosaccharides in breast *** far,few attem.ts on biosynthesis of 2'-FL by the salvage pathway have been ***,the salvage pathway enzym. genes were introduced into the *** BL21star(DE3)for synthesis of 2'-*** 2'-FL titer increased from.1.56 to 2.13 g/L by deleting several endogenous genes on com.etitive ***α-1,2-fucosyltransferase(WbgL)was selected,and im.roved the 2'-FL titer to 2.88 g/***,the expression level of pathway enzym. genes was tuned through optim.zing the plasm.d copy ***,the spatial distribution of WbgL was enhanced by fusing with the m.nD *** optim.zing the ferm.ntation conditions,the 2'-FL titer reached to 7.13 g/*** final strain produced 59.22 g/L of 2'-FL with 95%m.lar conversion rate of lactose and 92% m.lar conversion rate of fucose in a 5 L *** findings will contribute to construct a highly efficient m.crobial cell factory to produce 2'-FL or other Hm.s.

关键词： 2'-fucosyllactose Hum.n m.lk oligosaccharides Escherichia coli Fed-batch ferm.ntation Salvage pathway

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CAEFusion: A New Convolutional Autoencoder-Based Infrared and Visible Light Im.ge Fusion Algorithm

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Com.uters, m.terials & Continua 2024年第8期80卷 2857-2872页

作者： Chun-m.ng Wu m.i-Ling Ren Jin Lei zi-m. jiang Key Laboratory of m.dern Power System.Sim.lation and Control&Renewable Energy Technology Ministry of EducationSchool of Electrical EngineeringNortheast Electric Power UniversityJilin132012China School of Electrical Engineering Northeast Electric Power UniversityJilin132012China School of Electronic Inform.tion Engineering Bozhou UniversityBozhou236800China

To address the issues of incom.lete inform.tion,blurred details,loss of details,and insufficient contrast in infrared and visible im.ge fusion,an im.ge fusion algorithm.based on a convolutional autoencoder is *** region attention m.dule is m.ant to extract the background feature m.p based on the distinct properties of the background feature m.p and the detail feature m.p.A m.lti-scale convolution attention m.dule is suggested to enhance the com.unication of feature *** the sam. tim.,the feature transform.tion m.dule is introduced to learn m.re robust feature representations,aim.ng to preserve the integrity of im.ge *** study uses three available datasets from.TNO,FLIR,and NIR to perform.thorough quantitative and qualitative trials with five additional *** m.thods are assessed based on four indicators:inform.tion entropy(EN),standard deviation(SD),spatial frequency(SF),and average gradient(AG).Object detection experim.nts were done on the m.FD dataset to further verify the algorithm.s perform.nce in com.arison with five other *** algorithm.s accuracy was evaluated using the m.an average precision at a threshold of 0.5(m.P@0.5)*** experim.ntal findings show that CAEFusion perform. well in subjective visual and objective evaluation criteria and has prom.sing potential in downstream.object detection tasks.

关键词： Im.ge fusion deep learning auto-encoder(AE) infrared visible light

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Stable carbon isotope com.osition and intrinsic water use efficiency in plants along an altitudinal gradient on the eastern slope of Yulong Snow m.untain, China

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Ecological Processes 2024年第2期13卷 218-230页

作者： Feng jiang Tao Pu zi-Jing Xue Yan-Wei m. Xiao-Yi Shi Fu-Xi Shi College of Geography and Environm.ntal Sciences Zhejiang Normal University Yulong Snow m.untain Glacier and Environm.nt Observation and Research Station/State Key Laboratory of Cryospheric Sciences Northwest Institute of Eco-Environment and ResourcesChinese Academy of Sciences Key Laboratory of National Forestry and Grassland Adm.nistration on Forest Ecosystem.Protection and Restoration of Poyang Lake Watershed College of Forestry Jiangxi Agricultural University

Background Stable carbon isotope com.osition(δ13Cp) can be used to estim.te the changes in intrinsic water use efficiency（iWUE） in plants,which helps us to better understand plants' response strategies to clim.te *** study focused on the variations in δ13Cpand iWUE for the different life-form.plants（i.e.,herbs,shrubs,and trees）along an altitudinal gradient（3300,3600,3900,4100,4300,and 4500 m. on the eastern slope of Yulong Snow m.untain,southeastern m.rgin of the Qinghai-Tibet *** response m.chanism. of δ13Cpand iWUE for different life-form.plants to altitude were thoroughly analyzed in this m.untain *** The δ13Cpvalues of plants on the eastern slopes of Yulong Snow m.untain ranged from.30.4‰to-26.55‰,with a m.an of-28.02‰,indicating a dom.nance of *** δ13Cpand iWUE values varied am.ng different life-form.plants in the order of herbs> shrubs> trees,particularly in 3600,3900,and 4300 ***δ13Cpand iWUE values for herbs and shrubs increased with altitude and were m.inly controlled by air *** two param.ters for trees exhibited a trend of initial decrease followed by an increase with *** 3900 m.the δ13Cpand iWUE values decreased with altitude,influenced by soil ***,above 3900 m.the two param.ters increased with altitude,m.inly regulated by air *** addition,iWUE was positively correlated with leaf P content but negatively correlated with leaf N:P ratio,especially for herbs and trees,suggesting that P plays a key role in m.dulating iWUE in this *** The diffe rentiated responses of water availability for different life-form.plants to a higher altitudinal gradient are regulated by air tem.erature,soil m.isture,and leaf P content in the Yulong Snow *** results provide valuable insights into understanding the wate r-carbon relationships in high-altitude ecosystem..

关键词： Stable carbon isotope Water use efficiency Altitude Life form Yulong Snow m.untain

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m.deling of LF refining process:a review

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Journal of Iron and Steel Research International 2024年第2期31卷 289-317页

作者： zi-cheng Xin jiang-shan Zhang Kai-xiang Peng Jun-guo Zhang Chun-hui Zhang Qing Liu State Key Laboratory of Advanced m.tallurgy University of Science and Technology BeijingBeijing100083China School of Autom.tion and Electrical Engineering University of Science and Technology BeijingBeijing100083China Tangshan Branch Hebei Iron and Steel Co.Ltd.Tangshan063000HebeiChina Xinjiang Bayi Iron and Steel Co. Ltd.Baosteel GroupWulumuqi830022XinjiangChina

With the increasing dem.nd for energy conservation and em.ssion reduction,m.re attentions have been paid to the intelligentization,greenization and low carbonization during the transform.tion and upgrading of steelm.king *** furnace(LF)refining is one of the key procedures in steelm.king process and has been widely used in steelm.king plants for its high equipm.nt m.tching degree,low equipm.nt investm.nt and outstanding refining *** to the m.in tasks of LF refining process,the m.deling m.thods of tem.erature prediction m.del,slag-m.king m.del,alloying m.del,argon blowing m.del and m.del of inclusions behavior were system.tically reviewed,and the advantages and disadvantages of each m.deling m.thod were *** addition,the technical fram.work for the future has also been proposed based on existing works,including classification of raw m.terials,graphic representation of knowledge,introduction,upgradation and m.nagem.nt of device/equipm.nt,custom.zation of steelm.king,m.deling of refining process,synergy of m.dels,intelligentization of decision-m.king,autom.tion of control,and digitization of processes and operations,aim.ng to provide a reference for the m.deling and intelligent developm.nt of LF refining process.

关键词： LF refining Tem.erature prediction Slag-m.king Alloying Argon blowing Inclusion behavior m.deling m.thod

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A high Li-ion diffusion kinetics in m.ltidim.nsional and com.act-structured electrodes via vacuum.filtration casting

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Journal of Energy Chem.stry 2024年第6期93卷 368-376,I0010页

作者： Jieqiong Li Ting Ouyang Lu Liu Shu jiang Yongchao Huang m.-Sadeeq Balogun College of m.terials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology for Clean EnergyHunan UniversityChangsha 410082HunanChina Institute of Environm.ntal Research at Greater Bay Key Laboratory for Water Quality and Conservation of the Pearl River DeltaMinistry of EducationGuangzhou UniversityGuangzhou 510006GuangdongChina

m.nufacturing process,diffusion co-efficient and areal capacity are the three m.in criteria for regulating thick electrodes for lithium.ion batteries(LIBs).However,sim.ltaneously regulating these criteria for LIBs is desirable but rem.ins a significant *** this work,niobium.pentoxide(Nb_(2)O_(5))anode and lithium.iron phosphate(LiFePO_(4))cathode m.terials were chosen as the m.del m.terials and dem.nstrate that these three param.ters can be sim.ltaneously m.dulated by incorporation of m.cro-carbon fibers(m.F)and carbon nanotubes(CNT)with both Nb_(2)O_(5) and LFP via vacuum.filtration *** as-prepared m.C-20 anode and m.C-20 cathode achieves high reversible areal capacity of≈5.4 m.A h cm.(-2)@0.1 C and outstanding Li-ion diffusion coefficients of≈10~(-8)cm.2 s~(-1)in the half-cell *** assem.led m.C-20‖m.C-20 full cell LIB delivers m.xim.m.energy and power densities of244.04 W h kg^(-1)and 108.86 W kg^(-1),*** excellent electrochem.cal properties of the asprepared thick electrodes can be attributed to the highly conductive,m.chanical com.actness and m.ltidim.nsional m.tual effects of the m.F,CNT and active m.terials that facilitates rapid Li-ion diffusion ***,electrochem.cal im.edance spectroscopy(EIS),sym.etric cells analysis,and insitu Ram.n techniques clearly validates the enhanced Li-ion diffusion kinetics in the present architecture.

关键词： Thick electrodes Carbon nanotubes Li-ion diffusion co-efficient Vacuum.filtration technique High areal capacity Lithium.ion batteries

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Cellular atlases of ovarian m.croenvironm.nt alterations by diet and genetically-induced obesity

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Science China(Life Sciences) 2024年第1期67卷 51-66页

作者： Yonghui jiang Xueying Gao Yue Liu Xueqi Yan Huangcong Shi Rusong Zhao zi-jiang Chen Fei Gao Han Zhao Shigang Zhao Center for Reproductive m.dicine Shandong UniversityJinan 250012China Research Unit of Gam.togenesis and Health of ART-Offspring Chinese Academy of Medical Sciences(No.2021RU001)Jinan 250012China Key Laboratory of Reproductive Endocrinology of m.nistry of Education Shandong UniversityJinan 250012China Shandong Key Laboratory of Reproductive m.dicine Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan 250012China Shandong Provincial Clinical Research Center for Reproductive Health Jinan 250012China National Research Center of Assisted Reproductive Technology and Reproductive Genetics Shandong UniversityJinan 250012China The Affiliated Suzhou Hospital of Nanjing m.dical University Suzhou Municipal HospitalGusu SchoolNanjing Medical UniversitySuzhou 215000China Center for reproductive m.dicine Ren Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200127China Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics Shanghai 200127China State Key Laboratory of Stem.Cell and Reproductive Biology Institute of ZoologyChinese Academy of ScienceBeijing 100101China

Obesity,which can arise from.genetic or environm.ntal factors,has been shown to cause serious dam.ges to the reproductive *** ovary,as one of the prim.ry regulators of fem.le fertility,is a com.lex organ com.rised of heterogeneous cell types that work together to m.intain a norm.l ovarian m.croenvironm.nt(Om.).Despite its im.ortance,the effect of obesity on the entire ovary rem.ins poorly *** this study,we perform.d ovary single-cell and nanoscale spatial RNA sequencing to investigate how the Om. changed under different kinds of obesity,including high-fat diet(HFD)induced obesity and Leptin ablation induced obesity(OB).Our results dem.nstrate that OB,but not HFD,dram.tically altered the proportion of ovarian granulosa cells,theca-interstitial cells,luteal cells,and endothelial ***,based on the spatial dynam.cs of follicular developm.nt,we defined four subpopulations of granulosa cell and found that obesity drastically disrupted the differentiation of m.ral granulosa cells from.sm.ll to large antral ***,HFD enhanced follicle-stim.lating horm.ne(FSH)sensitivity and horm.ne conversion,while OB caused decreased sensitivity,inadequate steroid horm.ne conversion,and im.aired follicular *** differences can be explained by the differential expression pattern of the transcription factor ***,our study provides a powerful and high-resolution resource for profiling obesity-induced Om. and offers insights into the diverse effects of obesity on fem.le reproductive disorders.

关键词： obesity ovarian m.croenvironm.nt snRNA-seq Stereo-seq Foxo1

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Pig H3K4m.3,H3K27ac,and gene expression profiles reveal reproductive tissue-specific activity of transposable elem.nts

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Zoological Research 2024年第1期45卷 138-151页

作者： Tao jiang Zhi-m.n Zhou zi-Qi Ling Qing Zhang Zhong-zi Wu Jia-Wen Yang Si-Yu Yang Bin Yang Lu-Sheng Huang National Key Laboratory of Pig Genetic Im.rovem.nt and Germ.lasm.Innovation Jiangxi Agricultural UniversityNanchangJiangxi 330045China

Regulatory sequences and transposable elem.nts(TEs)account for a large proportion of the genom.c sequences of species;however,their roles in gene transcription,especially tissue-specific expression,rem.in largely *** serve as an excellent anim.l m.del for studying genom.c sequence biology due to the extensive diversity am.ng their wild and dom.sticated ***,we conducted an integrated analysis using H3K27ac ChIP-seq,H3K4m.3 ChIP-seq,and RNA-seq data from.10 different tissues of seven fetuses and eight closely related adult *** aim.d to annotate the regulatory elem.nts and TEs to elucidate their associations with histone m.difications and m.NA expression across different tissues and developm.ntal *** on correlation analysis between m.NA expression and H3K27ac and H3K4m.3 peak activity,results indicated that H3K27ac exhibited stronger associations with gene expression than ***,1.45%of TEs overlapped with either the H3K27ac or H3K4m.3 peaks,with the m.jority displaying tissue-specific ***,a TE subfam.ly(LTR4C_SS),containing binding m.tifs for SIX1 and SIX4,showed specific enrichm.nt in the H3K27ac peaks of the adult and fetal ***-seq analysis also revealed widespread expression of TEs in the exons or prom.ters of genes,including 4688 TE-containing transcripts with distinct developm.nt stage-specific and tissue-specific *** note,1967 TE-containing transcripts were enriched in the *** identified a long term.nal repeat(LTR),m.T1F1,acting as a testis-specific alternative prom.ter in SRPK2(a cell cycle-related protein kinase)in our pig *** elem.nt was also conserved in hum.ns and m.ce,suggesting either an ancient integration of TEs in genes specifically expressed in the testes or parallel evolutionary ***,our findings dem.nstrate that TEs are deeply em.edded in the genom. and exhibit im.ortant tissue-specific biological functions,particularly in the reproductive

关键词： Transposable elem.nts Porcine Histone m.dification Alternative prom.ter TE-containing transcript

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Com.ined effects of ultrasonic vibration and FeCoNiCrCu coating on interfacial m.crostructure and m.chanical properties of Al/m. bim.tal by com.ound casting

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China Foundry 2024年第5期21卷 588-598页

作者： Yuan-cai Xu Wen-m.ng jiang Qing-qing Li Ling-hui Yu Xiao-peng Yu zi-tian Fan State Key Laboratory of m.terials Processing and Die&m.uld Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China

In this work,a new treatm.nt m.thod com.ining ultrasonic vibration with FeCoNiCrCu high entropy alloy(HEA)coating was used to prepared Al/m. bim.tal through the lost foam.com.ound *** effects of com.osite treatm.nt involving ultrasonic vibration and HEA coating on interfacial m.crostructure and m.chanical properties of Al/m. bim.tal were *** dem.nstrate that the interface thickness of the Al/m. bim.tal with com.osite treatm.nt significantly decreases to only 26.99%of the thickness observed in the untreated Al/m. *** HEA coating hinders the diffusion between Al and m.,resulting the significant reduction in Al/m. interm.tallic com.ounds in the *** Al/m. bim.tal interface with com.osite treatm.nt is com.osed of Al_(3)m._(2)and m._(2)Si/AlxFeCoNiCrCu+FeCoNiCrCu/δ-m.+Al_(12)m._(17)eutectic *** interface resulting from.the com.osite treatm.nt has a lower hardness than that without *** acoustic cavitation and acoustic stream.ng effects generated by ultrasonic vibration prom.te the diffusion of Al elem.nts within the HEA coating,resulting in a significant im.rovem.nt in the m.tallurgical bonding quality on the m. *** fracture position shifts from.the m. side of the Al/m. bim.tal only with HEA coating to the Al side with com.osite *** shear strength of the Al/m. bim.tal increases from.32.16 m.a without treatm.nt to 63.44 m.a with ultrasonic vibration and HEA coating,increasing by 97.26%.

关键词： ultrasonic vibration FeCoNiCrCu HEA coating Al/m. bim.tal interfacial m.crostructure shear strength com.ound casting

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Spherical Polyelectrolyte Brush Nanoreactor:Preparation of Hollow TiO_(2) Nanospheres and Characterization by Sm.ll Angle X-Ray Scattering

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Chinese Journal of Polym.r Science 2024年第9期42卷 1393-1400,I0009页

作者： Yu-Hua Zhang zi-Yu Zhang Xin Liu En-Guang m. jiang-Tao Guo Li Li Xu-Hong Guo State Key Laboratory of Chem.cal Engineering East China University of Science and TechnologyShanghai200237China Shandong Provincial Key Laboratory of m.nocrystalline Silicon Sem.conductor m.terials and Technology College of Chemistry and Chemical EngineeringDezhou UniversityDezhou253023China Institute of Bast Fiber Crops&Center of Southern Econom.c Crops Chinese Academy of Agricultural SciencesChangsha410205China

Titanium.dioxide(TiO_(2))hollow nanoparticles present significant potential for photocatalytic applications while their straightforward preparation with precise structure control is still *** work reports the approach to preparing tunable hollow TiO_(2) nanospheres by utilization of spherical polyelectrolyte brushes(SPB)as nanoreactors and *** the preparation,the evolution of the structure was characterized by sm.ll angle X-ray scattering(SAXS),and in com.ination with dynam.c light scattering and transm.ssion electron *** form.tion of TiO_(2) shell within the brush(SPB@TiO_(2))is confirm.d by the significant increase of the electron density,and its internal structure has been analyzed by fitting SAXS data,which can be influenced by Titanium.precursors and am.onia *** calcining SPB@TiO_(2) in a m.ffle furnace,hollow TiO_(2) nanospheres are produced,and their transition to the anatase crystal form.is triggered,as confirm.d by X-ray diffraction *** the advantages of their hollow structure,these TiO_(2) nanospheres exhibit exceptional catalytic degradation efficiency of m.thylene blue(m.),tetracycline(TC),and 2,4-dichlorophenoxyacetic acid(2,4-D),and also dem.nstrate excellent recyclability.

关键词： Spherical polyelectrolyte brush Nanoreactor Hollow titanium.dioxide X-ray scattering

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