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单相LCL并网逆变器控制策略综述

电工技术学报 2013年第10期28卷 134-142页

作者：赵晋斌张元吉屈克庆李芬黑川不二雄上海电力学院电气工程学院长崎大学大学院工学研究科

LCL滤波器由于具有滤波特性好、体积小的优势,被越来越广泛地的应用于单相并网逆变器中,但由于其电容支路极易产生谐振,对控制电路设计提出了很大的挑战。从控制目标来分,单相LCL并网逆变器主要包含以下两类策略:电流控制型和电压控制... 详细信息

LCL滤波器由于具有滤波特性好、体积小的优势,被越来越广泛地的应用于单相并网逆变器中,但由于其电容支路极易产生谐振,对控制电路设计提出了很大的挑战。从控制目标来分,单相LCL并网逆变器主要包含以下两类策略:电流控制型和电压控制型。目前,大多数研究主要围绕单相锁相环及如何改善电流控制效果在进行。而本文主要针对控制目标的特性,围绕不同控制策略的优缺点进行了全方位的说明和归纳比较,并得出相应结论。

关键词：单相逆变器 LCL滤波器控制策略电流控制型电压控制型

A Review of the Recent PIV Studies —From the Basics to the Hybridization with CFD

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Journal of Flow Control, Measurement & Visualization 2022年第4期10卷 117-147页

作者： fujio Yamamoto Masaaki Ishikawa Graduate School of Engineering University of Fukui Fukui-Shi Japan Energy and Environment Engineering Program Faculty of Engineering University of the Ryukyus Okinawa Japan

The purpose of this article is to review recent PIV Studies from the basic to hybrid analysis, focusing on explaining epoch-making development of PIV. The overwhelming advantage of PIV over other velocity measurement methods is that it enables instantaneous and simultaneous velocity measurement of whole flow fields. We roughly classify PIV development and/or progress into the following five categories; A) Basics of PIV and post-processing. B) Simultaneous measurement of velocity and temperature, and 3D-PIV. C) Application to multiphase turbulent flows. D) Application to fluid machinery. E) Hybridization of PIV and CFD. This paper introduces the epoch-making research results from papers published in international journals as milestones related to (A) to (E), and concludes with additional forecast of future development of PIV research.

关键词： Review PIV PTV CFD Hybrid Fluid Mechanics Measurement Flow Visualization

牙鲆群体Idh-1基因座位杂合型个体选择性优势

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武汉大学学报（自然科学版） 2000年第4期46卷 495-499页

作者：刘思阳池田实藤尾芳久武汉大学生命科学学院武汉430072 日本东北大学农学系

利用淀粉凝胶水平电泳法分析了人工牙鲆种苗群体的异柠檬酸脱氢酶同工酶 (IDH) .对牙鲆材料分析得知 Idh- 1基因座位只存在 A、B两个等位基因 ,而且在 2 3个样品群中 ,有 19个样品群呈现 A、B这两个等位基因所决定的基因型的杂合型个体... 详细信息

利用淀粉凝胶水平电泳法分析了人工牙鲆种苗群体的异柠檬酸脱氢酶同工酶 (IDH) .对牙鲆材料分析得知 Idh- 1基因座位只存在 A、B两个等位基因 ,而且在 2 3个样品群中 ,有 19个样品群呈现 A、B这两个等位基因所决定的基因型的杂合型个体过剩现象 ,表现出杂合基因型的选择性优势 .设定这 19个呈杂合型过剩样品群的死亡率为零 ,即以杂合型 A/ B的成活率为 10 0 %来计算其纯合型的成活率 ,得到纯合型个体 A/ A和 B/ B的成活率分别为 6 9.2 %和 75 .2 % ;从个体的标准体长上看 ,在表现为杂合型个体过剩的 19个样品群中 ,15个样品群的杂合型个体 (A/ B)大于纯合型个体 (B/ B) .其结果反映了牙鲆人工养殖放流群体的 Idh- 1的基因型与成活率及生长存在相关性 .

关键词：牙鲆杂合型选择优势 Idh-1基因座位

扭矩转化器(T/C)内部叶片流道流场的二维PIV实验研究

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实验力学 2000年第2期15卷 211-216页

作者：王灿星林建忠山本富士夫浙江大学杭州310027 日本福井大学

本文利用二维 PIV技术研究了汽车无级调连装置中扭矩转化器内部叶片流道流场的复杂流动 ,实验结果表明泵和透平在不同转速下 ,静子叶片流道中的流场体现出不同的流动特征 .文中还对实验误差进行了分析 ,提出了减少误差的措施 .

关键词：扭矩转化器汽车流场二维PIV 叶片流道

硫黄对乙丙胶和二乙烯基苯共混胶料过氧化物硫化的影响

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橡胶参考资料 1980年第10期 10-20页

作者： R.fujio M.Kitayama N.Kataoka S.Anzai 王有道日本Bridgestone轮胎有限公司研究部日本Bridgestone轮胎有限公司研究部东京

前言相当长时间以来就已经知道三元乙丙胶（或二元乙丙胶）和二乙烯基苯胶料能够用过氧化物硫化,可以得到具有良好机械性能的和高交联度的硬性硫化胶。而且,也已经发见,用过氧化物硫化的炭黑填充的二元乙丙胶中再加硫黄,可以改善胶料的... 详细信息

前言相当长时间以来就已经知道三元乙丙胶（或二元乙丙胶）和二乙烯基苯胶料能够用过氧化物硫化,可以得到具有良好机械性能的和高交联度的硬性硫化胶。而且,也已经发见,用过氧化物硫化的炭黑填充的二元乙丙胶中再加硫黄,可以改善胶料的定伸强度和扯断强度,并且提高溶胀试验中的橡胶体积份数V1。本文将要阐述硫黄对三元乙丙胶与二乙烯基苯胶料过氧化物硫化的影响。争取从定

关键词：硫黄胶料过氧化物硫化二乙烯基苯

用流动可视化技术研究混合器内研究简报流场及混合效果

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化工学报 2000年第1期51卷 137-140页

作者：阮晓东范毓润宋向群山本富士夫浙江大学流体传动及控制国家重点实验室杭州310027 日本福井大学工学部机械工学科福井9108517

In this paper the flow field in a static mixer is measured by Particle Image Velocimetry (PIV), which belongs to the technique of flow visualization. The vorticity field is obtained from the velocity field. The sequences of particle images are analyzed statistically and the mixing homogeneity degrees are also determined by calculating probability densities. The relation between the mixing result is also related to the state of flow. The experiment show that the mixing is mainly affected by the motion of vortices, not turbulence diffusion.

关键词：流动可视化 PIV 混合混合器流场流体

Temporal and Spatial Variations of Accommodation and Sediment Accumulation during Transgressive to Highstand Stages as Reconstructed from a Latest Pleistocene to Holocene Sequence in the Intra-Arc Osaka Basin, Japan

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Open Journal of Geology 2015年第1期5卷 28-37页

作者： fujio Masuda Natsumi Itomoto Department of Environmental System Sciences Faculty of Science and Engineering Doshisha University Kyoto Japan

Temporal and spatial variations in accommodation (i.e., paleo-water depth) and sediment accumulation (amount of deposition) in the intra-arc Osaka Basin, Japan, were reconstructed from the post-glacial transgression through the sea-level highstand, a total of 9000 years. At the beginning of the marine transgressive stage (about 11,000 cal y BP), paleo-water depths were shallow and the sediment accumulation was large. The area occupied by Osaka Bay gradually extended and sediment deposition decreased from 11,000 to 6000 cal y BP. During the period of maximum transgression (6000 - 5000 cal y BP), an inner bay, Kawachi Bay with a water depth of 5 - 10 m, was expanded in the inland eastern Osaka area, and paleo-water depths reached a maximum and depositional rates reached a minimum. During the subsequent highstand and small regression (about 5000 cal y BP to the present), however, deposition increased rapidly as a result of river delta and shoreline progradations. Regional differences were observed in accommodation and accumulation between the outer bay area and the inner bay area. During both the transgressive and regressive stages, deposition decreased in the inner bay area. In contrast, in the outer bay area and in the basin overall, deposition was high during the first part of the transgressive stage but it decreased during the maximum transgression, before reaching a maximum during the subsequent highstand and regression. During the regressive stage, fluvial delta progradation led to the formation of a thick sequence of delta body sediments. Sediment accumulation was 30% - 40% higher during the regressive stage than that during the transgressive stage.

关键词： Accommodation Holocene Osaka Plain Paleo-Depths Sediment Accumulation Sequence Stratigraphy

Reconstruction of the Lacustrine Delta and Lake Level Change Analyzing Subsurface Geology and Geomorphology: Changes That Occurred during the Holocene in the Oguraike Reclaimed Land Area, Southern Kyoto, Japan

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Open Journal of Geology 2012年第3期2卷 203-211页

作者： Yuka Ito fujio Masuda Department of Environment System Science Doshisha University Kyoto Japan Graduate School of Frontier Sciences The University of Tokyo Chiba Japan

A paleo-lacustrine delta in Kyoto, Japan was reconstructed on the basis of subsurface geological and geomorphological analysis, and paleo-lake level changes were estimated from the structure of the delta. These analyses of the study region, i.e., the Oguraike reclaimed land area provided evidence that Lake Ogura existed until about 60 years ago in southern Kyoto, Japan. The Uji river delta was provided influents to this lake until ca. 400 years ago, as is indicated by an upward-coarsening delta succession of about 2 - 4 m thickness. The lake level could also have changed in the past as a result of a change in altitude of the delta-front (foreset) and delta-plain boundary, which probably reflects the lake surface elevation. About 400 years ago, the Paleo-Uji River was separated from Ogura Lake because a levee was constructed along the river for building a castle and for constructing a waterway for transportation. As a result of this construction, the lake level that was more than 13.0 m in elevation was reduced by 1.5 m. In a more ancient times, the lake level experienced two stages—one in which the elevation was more than 13.5 m, and one in which the elevation was reduced to less than 10 m. These changes in the lake level are represented by a flat surface with four steps and small cliff of height ca. 0.5 - 2 m (relative elevation) separating them, recognized at the southern lakeshore. The observation of strata along with the archaeological survey in the north of Ogura Lake reveals that the lake level was decreased ca. 800 - 680 years ago. The lake level was at its highest during two periods, the first from before the 8th century to the end of the 8th century and the second from the 14th century to 400 years ago.

关键词： Lake Level Lake Ogura Delta Lacustrine Deposit Borehole Data

Herbert螺钉在年轻运动员舟状骨骨折中的应用

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中华创伤骨科杂志 2008年第8期10卷 770-772页

作者： Keiichi Muramatsu Kazuteru Doi Noriyuki Kuwata fujio Kawakami Koichiro lhara Shinya Kawai 曾龙(译) Department of Orthopedic Surgery Yamaguchi University School of Medicine. Japan Department of Orthopedic Surgery Ogori Daiichi General Hospital Japan 第二军医大学附属长征医院骨科 200003

背景舟状骨骨折是竞技体育中常发生的致残性外伤。本研究评估使用捷迈公司生产的Herbert螺钉治疗年轻运动员舟状骨骨折的效果。方法30例舟状骨骨折的运动员接受治疗。根据Herbert分类标准，其中10例为急性骨折（Ⅰ组），另外包括6例纤... 详细信息

背景舟状骨骨折是竞技体育中常发生的致残性外伤。本研究评估使用捷迈公司生产的Herbert螺钉治疗年轻运动员舟状骨骨折的效果。方法30例舟状骨骨折的运动员接受治疗。根据Herbert分类标准，其中10例为急性骨折（Ⅰ组），另外包括6例纤维连接（Ⅱ组）和14例为假关节（Ⅲ组）；20例患者由于漏诊或内固定失败形成骨不连。结果Ⅰ、Ⅱ、Ⅲ组术后形成明显骨连接的平均时间分别为9．2、8．0、11．9周，恢复运动能力的时间分别为10．7、14．0、22．9周。使用Mayo腕关节评分评价临床效果，Ⅰ、Ⅱ组表现优秀（分别为97．5和93．3分），Ⅲ组表现良好（85．4分）。结论及早确诊和治疗可使年轻运动员早期恢复运动能力。捷迈公司生产的Herbert螺钉技术治疗舟状骨骨折的临床效果出色。

关键词： Herbert螺钉舟状骨骨折运动员年轻纤维连接运动能力临床效果内固定失败