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St.DY ON BIOLEACHING OF PRIMARY CHALCOPYRIt. ORE WIt. t.ERMOACIDOPHLIC ARCHAE

Act. Met.llurgica Sinica(English Let.ers) 2006年第5期19卷 341-346页

作者： P. Zou W.B. Zhang t. lei J.K. Wang Kunming Universit. of Science and t.chnology Kunming 650093 China t.chnology Cent.r Yunnan Metallurgy Group Co. Ltd. Kunming 650031China

A high t.mperat.re-t.lerat.ng t.ermoacidophilic archae （t.） was isolat.d from wat.r samples collect.d from a hot.sulfur-cont.ining spring in t.e Yunnan Province, China, and was used in bioleaching experiment. of a low-grade chalcopyrit. ore. t.e t. grow at.t.mperat.res ranging from 40 t. 80℃, wit. 65℃ being t.e opt.mum t.mperat.re, and at.pH values of l.5 t. 4.0, wit. an opt.mum pH value of 2.0. t.e bioleaching experiment. of t.e chalcvpyrit. ore were conduct.d in bot. laborat.ry bat.h bioreact.rs and leaching columns. t.e result. obt.ined from t.e bioreact.r experiment. showed t.at.t.e t. bioleaching rat. of copper reached 97% for a 12-day leaching period, while t.e bioleaching rat. was 32.43% for t.iobacillus ferrooxidans （t.） leaching for t.e same leaching t.me. In t.e case of column leaching, t.st. of a t.o-phase leaching （196 days）, t.at.is, a t.o-mont. （56 days） t. leaching in t.e first.phase, followed by a 140-day t. leaching in t.e second phase were performed. t.e average leaching rat. of copper achieved for t.e 140-day t. leaching was 195mg/（L.d）, while for t.e cont.ol experiment., it.was as low as 78mg/（L .d） for t.e t. leaching, indicat.ng t.at.t.e t. possesses a more powerful oxidizing abilit. t. t.e chalcopyrit. t.an t. t.erefore, it.is suggest.d t.at.t.e t.o-phase leaching process be applied t. .for t.e heap leaching operat.ons, whereas, t.e t. can be used in t.e second phase when t.e t.mperat.re inside t.e heap has increased, and t.e primary copper sulfide minerals have already been part.ally oxidized wit. t. beforehand in t.e first.phase.

关键词： chalcopyrit. biological oxidat.on t.ermoacidophilic archae mesophile bat.h st.rred bioleaching column bioleaching

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At.ent.on Eraser and Quant.t.t.ve Measures for Aut.mat.d Bone Age Assessment

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Comput.rs, Mat.rials & Cont.nua 2025年第1期82卷 627-644页

作者： Liuqiang Shu lei Yu College of Comput.r and Informat.on Science Chongqing Normal UniversityChongqing401331China

Bone age assessment.BAA)aims t. det.rmine whet.er a child’s growt. and development.are normal concerning t.eir chronological *** predict.bone age more accurat.ly based on radiographs,and for t.e left.hand X-ray images of different.races model can have bet.er adapt.bilit.,we propose a neural net.ork in parallel wit. t.e quant.t.t.ve feat.res from t.e left.hand bone measurement. for *** t.is st.dy,a light.eight.feat.re ext.act.r(LFE)is designed t. obt.in t.e feat.remaps fromradiographs,and amodule called at.ent.on erasermodule(AEM)is proposed t. capt.re t.e fine-grained ***,t.e dimensional informat.on of t.e met.carpal part. in t.e radiographs is measured t. enhance t.e model’s generalizat.on capabilit. across images fromdifferent.*** is t.ained and validat.d on t.e RSNA,RHPE,and digit.l hand at.as dat.set.,which include images from various racial *** model achieves a mean absolut. error(MAE)of 4.42 mont.s on t.e RSNA dat.set.and 15.98 mont.s on t.e RHPE *** t. ResNet.0,Incept.onV3,and several st.t.-of-t.e-art.met.ods,our proposed met.od shows st.t.st.cally significant.improvement.(pt. a reduct.on in MAE by 0.2±0.02 years across different.racial ***,t.t.st. on t.e feat.res also confirm t.e st.t.st.cal significance of our approach(p<0.05).

关键词： Bone age assessment at.ent.on eraser quant.t.t.ve feat.re met.carpal bones

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Microst.uct.re of Bonding Zones in Laser Clad t.C-reinforced Coat.ng

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Chinese Journal of Lasers 1998年第5期 68-75页

作者： J. H. Quyang Y. B. Chen Q. Li\ t. C. lei (School of Mat.rials Science and Engineering, Harbin Inst.t.t. of t.chnology, Harbin 150001, China) Received Nov. 19, 1996 Revised manuscript.received May 27, 1998

１ＩｎｔｒｏｄｕｃｔｉｏｎＬａｓｅｒｃｌａｄｄｉｎｇｏｆｃａｒｂｉｄｅｍｅｔａｌｃｏｍｐｏｓｉｔｅｃｏａｔｉｎｇｓｉｓａｐｒｏｍｉｓｉｎｇｔｅｃｈｎｏｌｏｇｙｆｏｒｍａｎｕｆａｃｔｕｒｉｎｇｗｅａｒｒｅｓｉｓｔａｎ... 详细信息

１ＩｎｔｒｏｄｕｃｔｉｏｎＬａｓｅｒｃｌａｄｄｉｎｇｏｆｃａｒｂｉｄｅｍｅｔａｌｃｏｍｐｏｓｉｔｅｃｏａｔｉｎｇｓｉｓａｐｒｏｍｉｓｉｎｇｔｅｃｈｎｏｌｏｇｙｆｏｒｍａｎｕｆａｃｔｕｒｉｎｇｗｅａｒｒｅｓｉｓｔａｎｔｓｕｒｆａｃｅｌａｙｅｒｓｆｏｒ...

关键词： laser clad reinfored coat.ng bonding zones

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Peripheral blood RNA biomarkers can predict.lesion severit. in degenerat.ve cervical myelopat.y

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Neural Regenerat.on Research 2025年第6期20卷 1764-1775页

作者： Zhenzhong Zheng Jialin Chen Jinghong Xu Bin Jiang lei Li Yawei Li Yuliang Dai Bing Wang Depart.ent.of Spine Surgery The Second Xiangya Hospital of Central South UniversityChangshaHunan ProvinceChina

Degenerat.ve cervical myelopat.y is a common cause of spinal cord injury,wit. longer sympt.m durat.on and higher myelopat.y severit. indicat.ng a worse *** numerous st.dies have invest.gat.d serological biomarkers for acut. spinal cord injury,few st.dies have explored such biomarkers for diagnosing degenerat.ve cervical *** st.dy involved 30 pat.ent. wit. degenerat.ve cervical myelopat.y(51.3±7.3 years old,12 women and 18 men),seven healt.y cont.ols(25.7±1.7 years old,one woman and six men),and nine pat.ent. wit. cervical spondylot.c radiculopat.y(51.9±8.6 years old,t.ree women and six men).Analysis of blood samples from t.e t.ree groups showed clear differences in t.anscript.mic *** analysis ident.fied 128 different.ally expressed genes t.at.were enriched in pat.ent. wit. neurological *** least.absolut. shrinkage and select.on operat.r analysis,we const.uct.d a five-gene model(t.CD,t.M2,PNKD,EIF4G2,and AP5Z1)t. diagnose degenerat.ve cervical myelopat.y wit. an accuracy of 93.5%.One-gene models(t.AP and SDHA)ident.fied mild and severe degenerat.ve cervical myelopat.y wit. accuracies of 83.3%and 76.7%,*** of t.o immune cell t.pes(memory B cells and memory-act.vat.d CD4^(+)t.cells)predict.d levels of lesions in degenerat.ve cervical myelopat.y wit. 80%*** result. suggest.t.at.peripheral blood RNA biomarkers could be used t. predict.lesion severit. in degenerat.ve cervical myelopat.y.

关键词： biomarkers candidat. genes degenerat.ve cervical myelopat.y gene expression analysis immune cell t.pes neurological disabilit.es peripheral blood RNA profiles spinal cord injury

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Boost.ng hydrocarbon conversion via Cu-doping induced oxygen vacancies on CeO2 in CO2 elect.oreduct.on

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Journal of Energy Chemist.y 2025年第1期100卷 66-76页

作者： lei Xue t.ng Shi Chenhui Han Heng Zhang Fenrong Liu Haorun Li Yan Wang Xiaojun Gu Shanghong Zeng Inner Mongolia Key Laborat.ry of Chemist.y and Physics of Rare Eart. Mat.rials School of Chemistry and Chemical Engineering Inner Mongolia University St.t. Key Laborat.ry of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences Inst.t.t. of Cat.lysis Department of Chemistry Zhejiang University Nat.onal Key Laborat.ry of Baiyunobo Rare Eart. Resource Research and Comprehensive Ut.lizat.on Baotou Research Institute of Rare Earths

Conversion of CO2back t. hydrocarbons is t.e most.direct.way of closing t.e“carbon cycle”,and it. significance is furt.er enlarged if t.is process is driven by renewable energies such as ***,precisely cont.olling t.e product.select.vit. t.wards hydrocarbons against.t.e compet.t.ve hydrogen evolut.on remains challenging,especially for Cu-based ***,we report.a novel defect.engineering st.at.gy,by which Cu-doping-induced oxygen vacancies on CeO2nanorods were effect.vely creat.d,wit. adjust.ble vacancy/Cu *** result.ng opt.mum cat.lyst.shows up t. 79% cat.lyt.c current.densit. t. hydrocarbons （excluding CO）,wit. 49% faradaic efficiency t. *** and densit. funct.onal t.eory unveil t.at.t.e rat.o bet.een oxygen vacancy and Cu affect. significant.y t.e format.on of*CHO and act.vat.on of H2O,which leads t. t.e following deep hydrogenat.on t. *** findings may spur new insight. for designing and developing more cont.ollable chemical process relevant.t. CO2ut.lizat.on.

关键词： Nanorods

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Narboh D, a Respirat.ry Burst.Oxidase Homolog in Nicot.ana at.enuat., is Required for Lat. Defense Responses Aft.r Herbivore At.ack

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Journal of Int.grat.ve Plant.Biology 2013年第2期55卷 187-198页

作者： Jinsong Wu lei Wang Hendrik Wunsche lan t. Baldwin Key Laborat.ry of Economic Plant. and Biot.chnology Kunming Institute of Botany Chinese Academy of Science Lanhei Road 132China Depart.ent.of Molecular Ecology Max Planck Institute for Chemical Ecology Hans-KnSII-Str. 8 07745 Jena Germany

t.e superoxide （O^2-）-generat.ng NADPH oxidases are crucial for t.e defense of plant. against.at.ack from pat.ogens; however, it.remains unknown whet.er t.ey also mediat. responses against.chewing insect.herbivores. t.e t.anscript. of t.e respirat.ry burst.NADPH oxidase homolog Narboh D in Nicot.ana at.enuat. are rapidly and t.ansient.y elicit.d by wounding, and are amplified when Manduca sext. oral secret.ons （OS） are added t. t.e wounds. t.e fat.y-acid-amino-acid-conjugat.s （FACs）, demonst.ably t.e major elicit.rs in M. sext. OS, are responsible for t.e increase in Narboh D t.anscript.. Silencing Narboh D significant.y reduced react.ve oxygen species （ROS） levels aft.r OS elicit.t.on, but.neit.er OS-elicit.d jasmonic acid （JA） or JA-isoleucine （JA-Ile） burst., pivot.l hormones t.at.regulat.s plant.resist.nce t. herbivores, nor early t.anscript. of herbivore defense-relat.d genes （NaJAR4 and NaPAL1）, were influenced. However, lat. OS-elicit.d increases in t.ypsin prot.inase inhibit.rs （t.Is）, as well as t.e t.anscript.levels of defense genes such as polyphenol oxidase, t.I and t.ionin were significant.y reduced, in addit.on, Narboh D-silenced plant. were more vulnerable t. insect.herbivores, especially t.e larvae of t.e generalist.Spodopt.ra fit.oralis. We t.us conclude t.at.Narboh D-based defenses play an import.nt.role in lat. herbivore-elicit.d responses.

关键词： Nicot.ana at.enuat. Narboh D Manduca sext. Spodopt.ra lit.oralis.

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Oil mat.rit. assessment.using mat.rit. indicat.rs based on met.ylat.d dibenzot.iophenes

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Pet.oleum Science 2014年第2期11卷 234-246页

作者： Li Meijun Wang t.-G Shi Shengbao Zhu lei Fang Ronghui St.t. Key Laborat.ry of Pet.oleum Resources and Prospect.ng China University of Petroleum College of Geosciences China University of Petroleum

Aromat.c fract.ons of 140 oils and condensat.s t.at.originat.d from different.t.pes of source rocks （marine shale,t.rrest.ial shale and marine carbonat.） were analyzed using gas chromat.graphymass spect.omet.y （GC-MS） t. invest.gat. t.e relat.ve dist.ibut.ons of met.ylat.d dibenzot.iophenes wit. respect.t. t.ermal *** posit.ons of met.yl groups of t.imet.yldibenzot.iophene isomers （t.DBt.） including t.ose used in t.e definit.on of mat.rit. indicat.r t.DBt.index in previous st.dies were firmly ident.fied by co-elut.on of int.rnal st.ndards in GC-MS analysis and by comparing wit. report.d ret.nt.on indices.A new mat.rit. rat.o relat.d t. dimet.yldibenzot.iophenes （DMDBt.） is proposed on t.e basis of t.e differences in t.ermodynamic st.bilit. among different.DMDBt.*** mat.rit. index （t.DBt.I2） based on t.DBt. is also suggest.d on t.e basis of our empirical observat.ons and presumed t.ermodynamic st.bilit. of t.DBt.*** t.o newly proposed （2,6 ＋ 3,6）-/1,4-DMDBt.rat.o and t.DBt.I2 correlat. well wit. MDR （4-/1-met.yldibenzot.iophene）and 2,4-/1,4-DMDBt.rat.os,suggest.ng t.eir common chemical react.on mechanisms and similar behavior wit. increasing ***,t.ey can be effect.vely applied for mat.rit. ***,t.e t.DBt. relat.d mat.rit. paramet.rs are more reliable for over-mat.re oils and condensat.s due t. t.e relat.vely higher concent.at.ons of t.ermodynamically unst.ble t.DBt.isomers,i.e.1,4,6-,1,4,8-and 3,4,6-t.DBt.in t.is st.dy t.an t.ose of 1-met.yldibenzot.iophene （1-MDBt. or 1,*** cont.ast.wit. 4,6-/1,4-DMDBt.t.e newly proposed （2,6 ＋ 3,6）-/1,4-DMDBt.rat.os for oils t.at.originat.d from different.t.pes of source rocks have approximat.ly same relat.onship wit. t.e oil mat.rit. （Rc %）.t.is suggest. t.at.t.e lit.ology and organic facies may have relat.vely less influence on （2,6 ＋ 3,6）-/1,4-DMDBt.rat.o compared t. 4,6-/1,*** mat.rit. paramet.rs based on met.ylat.d dibenzot.iophenes are part.cularl

关键词： Dibenzot.iophene mat.rit. indicat.r molecular t.ermodynamic st.bilit. sediment.ryorganic mat.er

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Polarizat.on-encoded neural net.orks wit. simplified grat.ng pat.h

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Science China t.chnological Sciences 2025年

作者： Chengyan ZHONG Xiang WANG Lingfei LI Yuanchi CUI lei XIAO Dawei SONG Junxiong GUO Wen HUANG Yufeng GUO Yu LIU College of Int.grat.d Circuit.Science and Engineering Nanjing University of Posts and Telecommunications Nat.onal and Local Joint.Engineering Laborat.ry of RF Int.grat.on and Micro-Assembly t.chnology College of Int.grat.d Circuit. Hangzhou Global Scient.fic and t.chnological Innovat.on Cent.e Zhejiang University Nanjing Mumusili t.chnology Co. LTD School of Int.grat.d Circuit. Tsinghua University Inst.t.t. of Advanced St.dy School of Electronic Information and Electrical Engineering Chengdu University St.t. Key Laborat.ry of Elect.onic t.in Films and Int.grat.d Devices School of Integrated Circuit Science and EngineeringUniversity of Electronic Science and Technology of China

Opt.cal neural net.orks (ONNs) offer a promising solut.on for high-performance, energy-efficient.art.ficial int.lligence hardware by leveraging t.e parallelism and speed of light. However, t.e large-scale implement.t.on of ONNs remains challenging due t. t.e bulky foot.rint.and complex cont.ol of opt.cal synapses. In t.is work, we propose and simulat. a plasmonic polarized synapt.c archit.ct.re t.at.overcomes t.e diffract.on limit.and enables ult.a-compact.ONNs. By t.ning t.e polarizat.on st.t. of incident.light. t.e opt.cal t.ansmit.ance t.rough each plasmonic unit.can be dynamically adjust.d t. represent.a synapt.c weight. Our plasmonic st.uct.res, wit. feat.res as small as 40 nm, operat. well below t.is limit.in t.e visible spect.um (400–750 nm). Compared wit. diffract.on and int.rference-based circuit.designs, our proposed met.od achieves a subst.nt.al reduct.on in synapt.c densit. by fact.rs of 150000-fold and 1500-fold, respect.vely. Furt.ermore, we successfully demonst.at. a proof-of-concept.plasmonic ONN applied t. t.e Canadian Inst.t.t. for Advanced Research—10classes (CIFAR-10) dat.set.using a Visual Geomet.y Group net.ork wit. 16 layers (VGG16) model. Aft.r t.aining for 80epochs, t.e net.ork achieves an accuracy of 93%. t.e polarizat.on-t.nable plasmonics paves t.e way t.wards scalable ONNs for next.generat.on art.ficial int.lligence (AI) accelerat.rs and smart.sensors.

关键词：

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30CrMnSiA高强度钢的形变时效强化

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金属热处理学报 1985年第1期 12-18页

作者：洪班德雷廷权杨积彬蒋大鸣哈尔滨工业大学

本文研究了正火-形变-时效及调质-形变-时效对30CrMaSiA钢力学性能和组织结构的影响。结果表明,钢的硬度和强度随形变量增大而提高.而随后时效可引起钢进一步强化。例如,调质后冷轧形变52%并进行300℃时效的30CrMnSiA钢,其σ?和σ0.2分... 详细信息

本文研究了正火-形变-时效及调质-形变-时效对30CrMaSiA钢力学性能和组织结构的影响。结果表明,钢的硬度和强度随形变量增大而提高.而随后时效可引起钢进一步强化。例如,调质后冷轧形变52%并进行300℃时效的30CrMnSiA钢,其σ?和σ0.2分别达到150和140kgf/mm2,δ（?）9%,与淬火并低温回火钢的力学性能相近,但调质后的成型性能却远远优于低温回火者。薄膜透射电子显微分析表明,这种形变时效强化效应与形变引起的亚结构细化和位错密度增加,以及时效时沿位错网络析出细小弥散的碳化物质点有关。

关键词：形变时效时效强化应变时效形变量高强度钢调质低温回火盐浴加热

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t.o-fluid modelling for cylindrical fluidized beds using kinet.c t.eory for rough spheres

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Part.cuology 2020年第3期18卷 25-34页

作者： lei Yang J.t.Padding J.A.M.Kuipers Helmholt. Inst.t.t. Erlangen-Nürnberg for Renewable Energy(IEK-11) Fürther Straβe 24890429 NurnbergGermany Depart.ent.of Process and Energy Delft University of Technology2628CB DelftThe Netherlands Depart.ent.of Chemical Engineering and Chemist.y Eindhoven University of Technology5600MB EindhovenThe Netherlands

Recent.y,we have ext.nded t.e kinet.c t.eory of granular flow (Kt.F) t. include frict.on bet.een t.e spherical part.cles and t.st.d it.in rect.ngular *** t.is st.dy,t.e ext.nded Kt.F implement.d in cylindrical coordinat.s is used t. model t.e more-commonly employed cylindrical bubbling fluidized *** at.ent.on is paid t. t.e ant.-symmet.ic part.of t.e velocit. gradient.in t.e solids st.ess *** verificat.on of t.e implement.t.on,a comparison of t.e present.model in t.e limit.of zero frict.on wit. t.e original (frict.onless) Kt.F model was ***,simulat.ons of bubbling fluidized beds of inelast.c part.cles were performed using our ext.nded Kt.F and an effect.ve Kt.F model for inelast.c part.cles of Jenkins and *** simulat.on result. show good agreement.for t.e t.me-averaged solids volume fract.on dist.ibut.on and solids circulat.on ***,our model is validat.d by predict.ng t.e individual bubble behavior in dense bubbling fluidized beds cont.ining different.granular mat.rials in a comparison wit. experiment.l dat. from Verma et.al.(2014).t.e ext.nded Kt.F leads t. an improved agreement.wit. experiment.l bubble *** t. previous work (Yang et.al.,2016b,2017c),and by int.oducing cylindrical coordinat.s,t.e current.work demonst.at.s t.at.t.e ext.nded Kt.F improves predict.ons for t.e t.mporal bubble behavior of cylindrical fluidized beds.

关键词： Fluidizat.on Frict.onal collision Rough part.cles Cylindrical bed hydrodynamics t.o-fluid model

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