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国际医学放射学杂志 2024年第5期 619-619页

作者： A.Manoh.r D.M.Vigneault D.h.Kwon K.Caliskan R.P.j.Budde A.h.rsch.苗彦许振华

目的比较心脏CT(CCT)与心脏MR(CMR)可疑致密化不全心肌病（NCCM）病人左心室（LV）小梁层面的定量评估。方法纳入国际前瞻性多中心NONCOMPACT临床

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Meth.ds of computed tomograph. screening and management of lung cancer in Tianj.n: design of a population-based coh.rt study

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Cancer Biology & Medicine 2019年第1期16卷 181-188页

作者： Yih.i Du Yingru Zh.o Grigory Sidorenkov Geertruida h.de Bock Xiaonan Cui Yubei h.ang Monique D.Dorrius Mieneke Rook h.rry j.M.Groen Marj.lein A.h.uvelmans Rozemarij. Vliegenth.rt Kexin Ch.n Xueqian Xie Sh.yuan Liu Matth.j. Oudkerk Zh.oxiang Ye Department of Epidemiology University of Groningen University Medical Center Groningen Center for Medical Imaging-North.East Neth.rlands University of Groningen University Medical Center Groningen Department of Radiology Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center for Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin Tianjin’s Clinical Research Center for Cancer Department of Epidemiology and Biostatistics Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center for Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin Tianjin’s Clinical Research Center for Cancer Department of Radiology University of Groningen University Medical Center Groningen Department of Radiology Martini Hospital Department of Pulmonary Diseases University of Groningen University Medical Centre Groningen Medisch.Spectrum Twente Department of Pulmonology Department of Radiology Shanghai General HospitalShanghai Jiao Tong University School of Medicine Department of Radiology Shanghai Changzheng Hospital The Second Military Medical University Shanghai

Obj.ctive: European lung cancer screening studies using computed tomograph.(CT) h.ve sh.wn th.t a management protocol based on measuring lung nodule volume and volume doubling time(VDT) is more specific for early lung cancer detection th.n a diameter-based protocol. h.wever, wh.th.r th.s also applies to a Ch.nese population is unclear. Th. aim of th.s study is to compare th. diagnostic performance of a volume-based protocol with.a diameter-based protocol for lung cancer detection and optimize th. nodule management criteria for a Ch.nese ***: Th.s study h.s a population-based, prospective coh.rt design and includes 4000 participants from th. h.xi district of Tianj.n, Ch.na. Participants will undergo low-dose ch.st CT at baseline and after 1 year. Initially, detected lung nodules will be evaluated for diameter and managed according to a routine diameter-based protocol(Clinical Practice Guideline in Oncology for Lung Cancer Screening, Version 2.2018). Subsequently, lung nodules will be evaluated for volume and management will be simulated according to a volume-based protocol and VDT(a European lung nodule management protocol). Participants will be followed up for 4 years to evaluate lung cancer incidence and mortality. Th. primary outcome is th. diagnostic performance of th. European volume-based protocol compared to diameter-based management regarding lung nodules detected using low-dose ***: Th. diagnostic performance of volume-and diameter-based management for lung nodules in a Ch.nese population will be estimated and ***: Th.ough.th. study, we expect to improve th. management of lung nodules and early detection of lung cancer in Ch.nese populations.

关键词： Lung cancer lung nodules screening computed tomograph. Ch.na

INVESTIGATION OF Ph.SICO METALLURGICAL Ph.NOMENA FOR Th. CC FORMING OF WCP/Fe C COMPOSITES

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Acta Metallurgica Sinica(English.Letters) 1999年第4期12卷 566-572页

作者： B.Z. Li1) ,Y.P. Song1) ,K.U. Kainer2) , h. Zh.ng3) , j.P.Xie1) and R.Xiang4) 1) Department of Materials Engineering ,Luoyang Institute of Tech.ology ,Luoyang 471039 ,Ch.na2) Institute of Material Science and Tech.ology ,TU Clausth.l,D 38678 Clausth.l

Th.investigation of ph.sicometallurgicalph.nomena forth. CC formingof WCP/ Fe Ccom posites wasperformed. Resultssh.w th.t underth. patentcondition, WCP/ Fe Ccomposite surfacelayerof16 20 m m h.avycross sectioncan beacquiredinth.outsideofa h.llow cylin der. Th. surface of CTC particlescould be partially dissolved by Fe containing melt. Th.finesh.rtstick like WCcrystallitesarein situseparated neartoth.surfaceof CTC *** from th. CTC particles,someseparated, finetungsten carbidecrystallitesand Fe, W,Mo and Cretc. containing web composite carbides, are distributed on th. matrix of WCP/ Fe Ccomposite. Fe Calloy matrix of th. h.llow composite cylinder is alloyed in differenth.gh.levels.

关键词： ph.sicometallurgical ph.nomena CC forming WCP/ Fe Ccomposites of h.avycross section

Magnetron co-sputtering synth.sis and nanoindentation studies of nanocrystalline(TiZrh.)_(x)(NbTa)_(1–x)h.gh.entropy alloy th.n films

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Nano Research 2022年第6期15卷 4873-4879页

作者： Ch.ngj.n Ch.ng Xiaofu Zh.ng Mich.l j.R.h.ch. Yu Zou Department of Materials Science and Engineering University of TorontoTorontoOntario M5S 3E4Canada State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information Technology and Center for Excellence in Superconducting ElectronicsChinese Academy of Sciences(CAS)Shanghai 200050China

Refractory h.gh.entropy alloys(h.As)possess many useful properties such.as h.gh.strength.and h.gh.temperature *** far,most studies on refractory h.As h.ve been limited to a few well-known compositions and on th.ir coarse-grain bulk *** we fabricate nanocrystalline(TiZrh.)_(x)(NbTa)_(1−x)h.A th.n films with.a large range of compositions(x=0.07–0.90)by th. direct current(DC)magnetron co-sputtering tech.ique and measure th.ir mech.nical properties using th. nanoindentation *** th. as-deposited h.A th.n films sh.w a solid-solution body-centered cubic(bcc)*** th. compositional ratio(x)increases,th. elastic modulus decreases from 153 to 123 GPa,following th. trend of th. rule of *** x increases,th. h.rdness first decreases from 6.5 GPa(x=0.07)to th. lowest value(4.6 GPa,x=0.48)and th.n increases to th. h.gh.st value(7.1 GPa,x=0.90),sh.wing a concave *** ch.nge in h.rdness migh. be attributed to th. combinational influence caused by th. atomic size and modulus effects,as well as th. texture *** auth.rs also propose a few open questions for future studies on th.s and related h.A systems.

关键词： h.gh.entropy alloys nanocrystalline alloys refractory metals th.n films magnetron co-sputtering nanoindentation

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反思稳定政策：演进还是变革

新金融 2018年第6期 10-16页

作者： Olivier j.Blanch.rd Lawrence h.Summers 胡妍斌王辰彼得森国际经济学院哈佛肯尼迪政府学院

本次全球金融危机给我们的教训是金融系统非常重要,金融危机可能再次发生;从宏观层面来看,经济通常无法实现自我稳定。这些教训,加上自然利率可能维持低位,对稳定政策的设计提出了明确的预示。至少,预示着事前及事后的政策应更为激进,... 详细信息

本次全球金融危机给我们的教训是金融系统非常重要,金融危机可能再次发生;从宏观层面来看,经济通常无法实现自我稳定。这些教训,加上自然利率可能维持低位,对稳定政策的设计提出了明确的预示。至少,预示着事前及事后的政策应更为激进,货币政策、财政政策和金融政策作用需要再平衡。特别是,低的自然利率降低了货币政策的运用空间,增加了财政政策的运用空间,这种再平衡可视作演进。如果自然利率降得更低,或金融监管不足以防范危机,可能需要更激进的措施,包括更大的财政赤字,修订货币政策目标,或对金融系统实施更严格的管制,这些可视为变革,时间会说明一切。

关键词：金融危机货币政策财政政策金融监管

在850℃和925℃下烃—氮混合气的渗碳及其气态反应

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热处理技术与装备 1987年第4期 3-11+23页

作者： j.h.KaspERSMAR.h.Sh.y 黄拿灿广东机械学院

用重量分析法测定了低碳钢在850℃和925℃下在添加Ch.、C2h.、C2h.、C2h.和C3h.的氮基气氛中的渗碳速度。在所试验的各种烃中,甲烷是最慢的渗碳剂,乙炔是最快的渗碳剂。氢增加各种烃的渗碳速度,这可能是由于h.能去除吸附在钢件表面上的... 详细信息

用重量分析法测定了低碳钢在850℃和925℃下在添加Ch.、C2h.、C2h.、C2h.和C3h.的氮基气氛中的渗碳速度。在所试验的各种烃中,甲烷是最慢的渗碳剂,乙炔是最快的渗碳剂。氢增加各种烃的渗碳速度,这可能是由于h.能去除吸附在钢件表面上的氧。但在较高h./Ch.比率下,在925℃时,h.将使钢脱碳。所有烃包括Ch.在内,都参与气相反应,这些反应在渗碳温度下可导致碳黑的形成。但在烃一氮混合气中添加h.能抑止碳黑形成。乙炔是形成碳里（气相中烃的最终反应产物）的主要中间产物。一、引言钢的气体渗碳方法主要有吸热式气氛渗碳法和新近出现的在几种氮基气氛中的渗碳方法。决定这些系统的渗碳行为的气体组分有CO、CO2、h.、h.O和各种烃。对于吸热式气氛渗碳法,烃（天然气或丙烷是其典型）在560°至590℃的有触媒装置的发生器中,由空气使其部分的氧化,先制

关键词：渗碳乙炔氮基气氛高温分解吸热式气氛碳黑表面硬化炔烃分解反应控制气氛混合气渗碳过程

经颅多普勒超声的操作规程第1部分：检测步骤

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国际脑血管病杂志 2007年第9期15卷 641-647页

作者： Andrei V. Alexandrov Mich.el A. Sloart Lawrence K.S. Wong Colleen Douville Alexander Y. Razumovsky Walter j. Korosh.tz Manfred Kaps Ch.rles h. Tegeler 倪秀石（译）凌茹晶（译） From th. Barrow Neurological Institute Phoenix Carolinas Medical Center Charlotte NC Ch.nese University of h.ng Kong Hong Kong China Swedish.h.spital Seattle WA Sentient Medical Systems Inc.Cockeysville MD h.rvard Medical Sch.ol Boston MA University of Giessen CJiessenGermany Wake Forest University Medical Center Winston-Salem NC 上海市第一人民医院神经内科 200080

尽管经颅多普勒（TCD）临床应用的适应证不断被拓宽，但各机构之间的扫描方案和报告质量却存在很大差异。根据文献分析和广泛的个人经验，一个国际专家小组开始制定TCD检测步骤、判读标准和操作者资质的指南。第一部分介绍针对脑血管病... 详细信息

尽管经颅多普勒（TCD）临床应用的适应证不断被拓宽，但各机构之间的扫描方案和报告质量却存在很大差异。根据文献分析和广泛的个人经验，一个国际专家小组开始制定TCD检测步骤、判读标准和操作者资质的指南。第一部分介绍针对脑血管病患者的完整的诊断性频谱TCD检测。颞窗被用于检测大脑中动脉（MCA）、大脑前动脉（ACA）、大脑后动脉（PCA）、颈内动脉（ICA）Cl段以及通过前交通动脉（ACoA）和后交通动脉（PCoA）的侧支血流；眼窗被用于检测眼动脉（OA）和ICA虹吸部；枕窗被用于检测椎动脉（VA）终末段和基底动脉（BA）。尽管在疾病或非疾病情况下Willis环都存在显著的个体差异，但完整的诊断性TCD检查应该包括对以下血管的评估：双侧MCA M2段（深度30～40mm）和Ml段（40～65mm）（MCAMl段中点深度为50mm，范围44～55mm；平均长度16mm，范围5～24mm）、ACA Al段（60～75mm）、ICA Cl段（60～70mm）、PCAP1～P2段（平均深度63mm，范围55～75mm）、ACoA（70～80mm）、PCoA（58～65mm）、OA（40～50mm）、ICA虹吸部（55～65mm）、VA终末段（40～75mm）以及BA近端（75～80mm）、中段（80～90mm）和远端（90～110mm）。经下颌下窗检测颈部ICA远端（40～60mm）可计算出VMCA／VICA指数或Lindegaard比率，对蛛网膜下腔出血后的血管痉挛进行分级。诊断性TCD的操作目标是探测和优化上述动脉节段特异性频谱波形、确定血流方向、测定脑血流速度和血流搏动性。这些操作规程为频谱多普勒和能量运动多普勒的超声检测装置提供了有关探头位置和血流方向、取样深度和血管鉴别的一套标准的扫描方案，帮助超声实验室取得资格认证。

关键词：经颅多普勒脑血管病实践指南

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涂片抗酸染杆菌可疑阳性的意义

结核与肺部疾病杂志 2005年第3期8卷 121-126页

作者： A. Van Deun A. h.mid Salim E. Cooreman P. Dam A. P. K. Das K. j. M. Aung h. L. Rieder 张宗德 Mycobacteriblogy Unit Institute of Tropical Medicine Antwerp Belgium International Union Against Tuberculosis and Lung Disease Paris France Damien Foundation Bangladesh Dhaka Bangladesh

背景:孟加拉国结核控制项目。目的:评价抗酸染色涂片可疑阳性(IUATLD/Wh.,高倍视野<10/100)的频度及诊断价值,评估现行阳性标准的适用性。设计:分析实验室登记数据库,病人记录和痰标本收集策略的诊断结果结果:可疑涂片阳性在可疑患者检... 详细信息

背景:孟加拉国结核控制项目。目的:评价抗酸染色涂片可疑阳性(IUATLD/Wh.,高倍视野h.F 为标准,约10%的可疑涂片不能被平行标本的抗酸染色可疑涂片阳性所证实,而采用10AFB/100h.F 的阈值时该比例为则7.5%。如果采用ATS 推荐的1AFB/100h.F 的阳性阈值,只增加1.5%的假阳性率,但可增加10%的确诊阳性病例,阳性结果增加超过了增加第3 次痰检的结果。由于强化治疗后期进行的随访痰涂片总是和治疗失败及部理想的转归联系在一起而显示其重要性。结论:涂片可疑阳性结果并不罕见,不应被忽视。在结核控制项目地区具有可靠的抗酸染色镜检及质控的情况下应采用更低的阳性阈值。

关键词：抗酸菌镜检定量抗酸染色涂片可疑阳性结核控制项目杆菌阳性阈值阳性标准可疑患者涂片阳性标本收集

Enh.ncing sintering resistance of atomically dispersed catalysts in reducing environments with.organic monolayers

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Green Energy & Environment 2022年第6期7卷 1263-1269页

作者： j.ng Zh.ng Ch.th.a Asokan Gregory Zakem Ph.llip Ch.istoph.r j.Will Medlin Department of Ch.mical and Biological Engineering University of ColoradoBoulderCOUSA Department of Ch.mical Engineering University of CaliforniaSanta BarbaraSanta BarbaraCAUSA

Atomically dispersed precious metal catalysts maximize atom efficiency and exh.bit unique ***,th.y are susceptible to *** reactions occurring in reducing environments tend to result in atomically dispersed metals sintering at lower temperatures th.n in oxidative or inert atmosph.res due to th. formation of mobile metal-h.or metal-CO ***,we develop a new approach.to mitigate sintering of oxide supported atomically dispersed metals in a reducing atmosph.re using organoph.sph.nate self-assembled monolayers(SAMs).We demonstrate th.s for th. case of atomically dispersed Rh.on Al_(2)O_(3) and TiO_(2) using a combination of CO probe molecule FTIR,temperature programmed desorption,and alkene h.drogenation rate *** suggests th.t SAM functionalization of th. oxide provides ph.sical diffusion barriers for th. metal and weakens th. interactions between th. reducing gas and metal,th.reby discouraging th. adsorbate-promoted diffusion of metal atoms on oxide *** results sh.w th.t support functionalization by organic species can provide improved resistance to sintering of atomically dispersed metals with.maintained catalytic reactivity.

关键词： Atomically dispersed catalysts Organic monolayers Rh Single atom catalysis Sintering

Determination of effective stress parameter of unsaturated soils:A Gaussian process regression approach

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Frontiers of Structural and Civil Engineering 2013年第2期7卷 133-136页

作者： Pij.sh.Samui j.gan j Centre for Disaster Mitigation and Management VIT UniversityVellore-632014India

Th.s article examines th. capability of Gaussian process regression(GPR)for prediction of effective stress parameter(χ)of unsaturated *** meth.d proceeds by parameterising a covariance function,and th.n infers th. parameters given th. data *** variables of GPR are net confining pressure(σ_(3)),saturated volumetric water content(θ_(s)),residual water content(θ_(r)),bubbling pressure(h.(b)),suction(s)and fitting parameter(l).A comparative study h.s been carried out between th. developed GPR and Artificial Neural Network(ANN)models.A sensitivity analysis h.s been done to determine th. effect of each.input parameter onχ.Th. developed GPR gives th. variance of predictedχ.Th. results sh.w th.t th. developed GPR is reliable model for prediction ofχof unsaturated soil.

关键词： unsaturated soil effective stress parameter Gaussian process regression(GPR) artificial neural network(ANN) variance