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一个高分辨对流层物质交换模式

气象学报 1993年第1期51卷 75-86页

作者：雷孝恩 j.S.Chang 中国科学院大气物理研究所 Mailing Address: ASRC .SUNYA .Albany. NY.. 12205. U.S.A.

在区域酸沉积模式(RADM)基础上,设计了一个高分辨对流层(TL)物质交换模式(EM3)。EM3在以下五个方面明显不同于RADM:第一,增加行星边界层(PBL)的垂直网格层次;第二、TL内考虑分层的垂直涡旋扩散系数型;第三,使用TL内分层的水平涡旋扩散... 详细信息

在区域酸沉积模式(RADM)基础上,设计了一个高分辨对流层(TL)物质交换模式(EM3)。EM3在以下五个方面明显不同于RADM:第一,增加行星边界层(PBL)的垂直网格层次;第二、TL内考虑分层的垂直涡旋扩散系数型;第三,使用TL内分层的水平涡旋扩散系数型;第四,采用包含有植物冠层垂直结构影响的新干沉积速度型;第五,使用数值扩散小的二阶矩守恒平流格式.用EM3和RADM对OSCAR Ⅳ实例作对比模拟,结果表明EM3能更好地预测出TL内的三维物质分布规律,在同样条件下,两模式预测的PBL低层中心浓度比值均大于1.8,最大值可大于3。

关键词：对流层物质交换模式高分辨大气

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培养料选择性研究

食用菌 1984年第4期 44-46页

作者： R.C.Ross P.j.Harris 张磊

Sinden和Hauser早在1950年和1953年的论文中即描述了栽培蘑菇“短期”前、后发酵培养料的堆制方法。但是,对堆制好的培养料的“选择性”或“专一性”至今才引起注意。堆制好的培养料是一种营养丰富、供蘑菇菌丝产生大量子实体的基质,... 详细信息

Sinden和Hauser早在1950年和1953年的论文中即描述了栽培蘑菇“短期”前、后发酵培养料的堆制方法。但是,对堆制好的培养料的“选择性”或“专一性”至今才引起注意。堆制好的培养料是一种营养丰富、供蘑菇菌丝产生大量子实体的基质,正确制备的培养料应具有专一性。eddy和jacods(1976)指出,

关键词：堆制蘑菇菌丝后发酵微生物群落 Hauser 发酵期高压灭菌接种处理发酵速度菇场

Improvements of a dynamic global vegetation model and simulations of carbon and water from stand point to region

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Improvements of a dynamic global vegetation model and simula...

One Approach to eddy Current Testing of Carburized Parts

中国气象学会2006年年会“气候系统模式发展与应用”分会场

作者：毛嘉富王斌戴永久 Woodward F.I. Lomas M.R. Hanson P.j. LASG Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 Graduate school of the Chinese Academy of Sciences Chinese Academy of Sciences Beijing 100049 LRSS School of Geography Beijing Normal University Beijing 100875 NERC Centre for Terrestrial Carbon Dynamics and Department of Animal and Plant Sciences University of Sheffield UK Environmental Sciences Division Oak Ridge National Laboratory P.O. Box 2008 Oak Ridge Tennessee 37831-6422 US

The interest in development and improvement of the dynamic global vegetation models (DGVMs), which have the potential to simulate fluxes of carbon, water and nitrogen, and vegetation dynamics in an in

关键词： dynamic global vegetation models terrestrial carbon and water fluxes eddy covariance evaluation continental China

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材料科学与工程（中英文A版） 2018年第1期8卷 1-9页

作者： j.Ivanov M+S Hydraulic PLC Kazanlak 6100Bulgaria

Through DOE(design of experiment),ЕТ(eddy current testing)is included and proven as a quality indicator of carburizing,quenching and tempering of hydraulic motor parts.A method is suggested for calibrating NDT(non-destructive testing)by means of combined representation of regression models in the field of the technological factors of heat treatment and contour control charts.A method is presented here for choosing the working frequency for *** is also suggested that experimental design be considered a basic building element in the methodology of carburized parts *** article also presents a methodology for conducting eddy current testing in industrial settings.

关键词： ET carburized parts DOE.

FEM-BEM Coupling for the Modelling of Induction Heating Processes Including Moving Parts

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journal of Shanghai jiaotong university(Science) 2000年第1期5卷 91-99页

作者： j. -M. Bergheau, Ph. Conraux 1. LTDS, UMR5513 CNRS/ECL/ENISE, 58, rue j. Parot, 42023 Saint Etienne Cedex 2, France, Email: bergheau@enise.fr 2.SYSTUS International, 84 Bvd Vivier Merle, 69485, Lyon Cedex 03, France, Email: ph.conraux@***

Every electrical conductive medium placed in a time varying magnetic field is the seat of eddy currents that dissipate power through joule effect. The induction hardening process takes advantage of this effect. The power concentrates in the surface of the piece (skin effect), the thickness of which depends on the electromagnetic properties and the frequency of the currents. The numerical simulation of such a process is of major interest to control and estimate the thickness of the treated layer, the superficial hardness, the residual stresses (often compressive in the surface) or the residual distortions. In this paper we focus on the interactions between electromagnetism and heat transfer for the simulation of the heating stage. The method used to couple both phenomena is detailed. A magnetic vector potential formulation is used for the electromagnetic analysis and an approach coupling finite elements with boundary elements is presented. Such a method is especially useful when moving parts are involved as it is generally the case for induction hardening processes. The air is represented by a boundary element that enables to consider independent meshes for all the conductive media within the device (piece and coils). Moreover, meshes are now the same for the electromagnetic and thermal analyses. This considerably facilitates the analysis that is performed step by step, each step corresponding to a position of the moving media. At each step, the matrices associated with the boundary element are calculated and the magneto-dynamic and thermal analyses are performed. Finally, an application is presented.

关键词： Induction heating Moving parts Finite Element Boundary Element.

斯里兰卡穹顶区的形成和演变机制分析（英文）

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南京信息工程大学学报（自然科学版） 2019年第2期11卷 198-207页

作者： K.B.S.S.j EKANAYAKA 王卫强中国科学院南海海洋研究所热带海洋环境国家重点实验室广州510301

通过SODA再分析资料和AVISO观测资料研究了斯里兰卡穹顶区(SLD)的迁移和消散机制.斯里兰卡穹顶区是孟加拉湾西南部的一个气旋涡旋,主要出现在西南季风(5—9月)期间,与西南季风海流侵入孟加拉湾同时存在.正风应力旋度引起的Ekman抽吸是形... 详细信息

通过SODA再分析资料和AVISO观测资料研究了斯里兰卡穹顶区(SLD)的迁移和消散机制.斯里兰卡穹顶区是孟加拉湾西南部的一个气旋涡旋,主要出现在西南季风(5—9月)期间,与西南季风海流侵入孟加拉湾同时存在.正风应力旋度引起的Ekman抽吸是形成SLD的主要原因.回归分析结果表明SLD区域的风应力旋度与Ekman抽吸存在较强的正相关(r^2=0.93,p>0.5).此外,结果表明SLD在发展过程中的移动主要受正风应力旋度移动的影响,SLD的消减与该正风应力旋度减弱和西传的暖Rossby波有关,而冷Rossby波的传播有益于SLD的发展.在SLD消减时期,孟加拉湾涡旋(BBD)独立发展并进一步与SLD融合,回归分析发现BBD区域的Ekman抽吸与当地风应力旋度的关系密切(r^2=0.76,p>0.5),这表明了BBD在形成阶段由局地的风应力主导.9月之后,风应力旋度减弱,BBD和SLD开始了合并过程.动力方面,EKE分析显示SLD衰退的同时,BBD的EKE大幅增加;热力方面,10—11月时,由Ekman抽吸引起的SLD和BBD次表层冷水汇合,清晰地表明了二者之间的热动力学联系.

关键词：斯里兰卡穹顶区风应力旋度 Ekman抽吸 Rossby波孟加拉湾涡旋

基于混合噪声模型的双层管柱电涡流信号去噪算法

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传感技术学报 2022年第5期35卷 627-634页

作者：陈友荣金合丽徐菲任条娟王柯周莹浙江树人学院信息科技学院浙江杭州310015 常州大学计算机与人工智能学院江苏常州213164 中国石化中原油田分公司石油工程技术研究院河南濮阳457000

针对复杂环境下气田井中双层管柱检测时的电涡流信号噪声去除难问题,提出一种基于混合噪声模型的双层管柱电涡流信号去噪算法(ECSD)。在ECSD中,首先对电涡流信号进行预处理,去除信号中增益。然后分析电涡流信号中包含的偏心噪声、温度... 详细信息

针对复杂环境下气田井中双层管柱检测时的电涡流信号噪声去除难问题,提出一种基于混合噪声模型的双层管柱电涡流信号去噪算法(ECSD)。在ECSD中,首先对电涡流信号进行预处理,去除信号中增益。然后分析电涡流信号中包含的偏心噪声、温度噪声、电磁噪声、提离噪声等混合噪声及各自噪声的来源,并根据混合噪声特性建立去噪模型。提出改进的海洋捕食者算法求解去噪模型参数,获得可较好拟合混合噪声的去噪模型,从而实现去除不同深度和温度下电涡流信号中的噪声。实验结果表明:ECSD算法能够拟合电涡流信号中的混合噪声,提高了信噪比,并且降低了去噪信号与纯净信号之间的均方根误差,优于WD、EMD、MF和WF等去噪算法。

关键词：信号处理信号去噪模型建立模型求解

药物洗脱支架时代6906例患者接受经皮冠状动脉介入治疗的结局:DEScover注册研究的报告

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世界核心医学期刊文摘（心脏病学分册） 2007年第4期3卷 23-24页

作者： Williams D.O. Abbott j.D. Kip K.E. 孙凯 Rhode Island Hospital APC 814593 Eddy StProvidenceRI 02903United States Dr.

背景:DEScover注册研究旨在观察美国常规临床实践中被选择应用药物洗脱支架(DES)治疗患者的特征及其预后。

关键词：药物洗脱支架 DEScover 介入治疗临床实践紫杉醇洗脱支架裸金属支架病变类型靶血管血运

Pedestrian-level wind conditions around buildings:Review of wind-tunnel and CFD techniques and their accuracy for wind comfort assessment

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建筑节能 2016年第5期44卷 20-20页

作者： B.Blocken T.Stathopoulos j.P.A.j.van Beeck 侯恩哲

Information on pedestrian-level wind(PLW)speed for wind comfort assessment can be obtained by wind-tunnel measurements or Computational Fluid Dynamics(CFD)***-tunnel measurements for PLW are routinely performed with low-cost techniques such as hot-wire or hot-film anemometers,Irwin probes or sand erosion,while Laser-Doppler Anemometry(LDA)and Particle-Image Velocimetry(PIV)are less often used because they are more *** simulations are routinely performed by the relatively low-cost steady Reynolds-AveragedNavier-Stokes(RANS)***-eddy Simulation(LES)is less often used because of its larger complexity and *** paper reviews wind-tunnel and CFD techniques to determine PLW speeds expressed generally in terms of amplification factors defined as the ratio of local mean wind speed to mean wind speed at the same position without buildings *** comparative studies systematically indicate that the low-cost wind-tunnel techniques and steady RANS simulations can provide accurate results(~10%)at high amplification factors(>1)while their accuracy can deteriorate at lower amplification factors(<1).This does not necessarily compromise the accuracy of PLW comfort assessment,because the higher amplification factors provide the largest contribution to the discomfort exceedance probability in the comfort *** LDA,PIV and LES are inherently more accurate techniques,this paper supports the continued use of faster and less expensive techniques for PLW *** a previous saying,we argue that pedestrian-level wind comfort is one of the few topics in wind engineering where nature is kind to us concerning turbulent flows.

关键词：期刊编辑工作英文摘要