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Friction 2020年第2期8卷 471-480页

作者： shinji kato Shinya SASAKI Engineering Headquarters Automotive ComponentsKYB Corporation2548DolaKani-shiGifu 509-0298Japan Department of Mechanical Engineering Faculty of Engineering Division ITokyo University of Science6-3-1NiijukuKatsushika-kuTokyo 125-8585Japan

The friction characteristics of a shock absorber are very complex because the reciprocating motion is not always *** this study,a device was developed and used to analyze the dynamic friction characteristics under various reciprocating sliding conditions to determine the sliding materials and hydraulic oils that improve the shock absorber *** study describes the influence of hydraulic oil additive on the fine reciprocating friction characteristics of steel and copper *** oils were prepared by blending a paraffinic mineral oil with zinc dithiophosphate(ZnDTP)and polyhydric alcohol ester as *** results show that the dynamic frictional characteristics vary mainly depending on the additive concentration.A specific additive formulation induces a unique amplitude-dependent friction *** addition,the influence of different additives on the lubrication mechanism is investigated based on the instrumental analysis of the friction surface.

关键词： shock absorber dynamic friction reciprocating friction additive zinc dithiophosphate(ZnDTP)

Development of a Heavy Ion Bearn Probe for Measuring Electrostatic Potential Profile and Its Fluctuation in LHD

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Plasma Science and Technology 2009年第4期11卷 460-464页

作者： TakeshiI DO Akihiro SHIMIZU Masaki NISHIURA Haruhisa NAKANO shinji kato Shinsuke OHSHIMA Yasuo YOSHIMURA Shin KUBO Takashi SHIMOZUMA HiroeI GAMI Hiromi TAKAHASHI Kazuo TOI Fumitake WATANABE Kazumichi NARIHARA Ichihiro YAMADA National Institute for Fusion Science

A heavy ion beam probe （HIBP） using a 3-MV tandem accelerator has been installed on large helical device （LHD）. Electrostatic potential in core plasma can be measured under the toroidal magnetic field strength of up to 3 T. By using the HIBP, the transition of potential profiles from electron-root to ion^root is observed in core plasmas during ramp-up of the electron density. Potential fluctuations are also measured electron cyclotron current drive （ECCD）. Two kind of characteristic fluctuations are observed. One is a reversed-shear-induced Alfv^n eigenmode （RSAE）, whose frequency varies during the evolution of the rotational transform profile, and the other is with a constant geodeisc acoustic mode （GAM） frequency.

关键词： electrostatic potential measurement HIBP GAM RSAE

旧石器时代晚期人类在欧亚东部地区的扩散和文化传播

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人类学学报 2023年第6期42卷 842-856页

作者：加藤真二奈良国立文化财研究所日本奈良6308577

本论文概述了旧石器时代晚期中国东部、朝鲜半岛、日本列岛等欧亚东部地区的石器工业,并基于“迁徙传播”和“接触传播”的角度就该地区旧石器时代晚期石器群的趋势进行了分析。通过分析阐明,旧石器时代晚期早段(40 kaBP cal以前),运用... 详细信息

本论文概述了旧石器时代晚期中国东部、朝鲜半岛、日本列岛等欧亚东部地区的石器工业,并基于“迁徙传播”和“接触传播”的角度就该地区旧石器时代晚期石器群的趋势进行了分析。通过分析阐明,旧石器时代晚期早段(40 kaBP cal以前),运用中国南方石器工业人群的向该地区北部区域的扩散;旧石器时代晚期前半段(40-28 kaBP cal)的地方人群形成和人群间的接触及技术传播;旧石器时代晚期后半段(28 kaBP cal以后),运用细石叶工业人群的广泛迁徙和扩散及再扩散,人群间的接触。虽有西方或者北方运用旧石器时代晚期初段或早中段石器工业人群的数次进入痕迹,但表明每次进入时间短暂且进入地也是局部性的。可以说,从石器群的分析角度所看到的石器工业运用人群的趋势和从基因分析结果表明的东亚祖先人群的趋势大致吻合。

关键词：远东欧亚地区旧石器时代晚期迁徙传播接触传播基底东欧亚人群

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中国的石叶技术

人类学学报 2006年第4期25卷 343-351页

作者：加藤真二日本奈良文化财研究所飞鸟资料馆明日香6340102

在旧石器时代晚期,中国北方的地域性石器工业之中也有石叶技术。最典型的实例是山西峙峪的,其特征是:1)制作技术简单;2)生产小型—中型石叶;3)石料的材料较好;4)在技术体系当中的作用较低。根据这些特征的有无,可以将中国北部的石叶技... 详细信息

在旧石器时代晚期,中国北方的地域性石器工业之中也有石叶技术。最典型的实例是山西峙峪的,其特征是:1)制作技术简单;2)生产小型—中型石叶;3)石料的材料较好;4)在技术体系当中的作用较低。根据这些特征的有无,可以将中国北部的石叶技术划分为许家窑以前的阶段、许家窑阶段(10—3.5万年前)、峙峪—小南海阶段(3.5—1.7万年前)这样3个阶段。本文主张这3个阶段分别相当于欧亚大陆西部的旧石器时代早、中、晚期。

关键词：石叶技术中国北方峙峪小南海许家窑旧石器分期

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日本北海道地区细石叶技术研究概述

人类学学报 2020年第3期39卷 392-403页

作者：岳健平王晗加藤真二中国科学院脊椎动物演化与人类起源重点实验室中国科学院古脊椎动物与古人类研究所北京100044 中国科学院生物演化与环境卓越创新中心北京100044 中国科学院大学北京100049 中国科学院资源地层学与古地理学重点实验室中国科学院南京地质古生物研究所南京10008 东北大学文学研究科考古学研究室仙台9808576 奈良文化财研究所奈良6308577

细石叶技术是晚更新世晚期东北亚和西北美新的变革性剥坯技术和适应手段。北海道地区拥有丰富、多样的细石器遗存,相关材料最早可以追溯到距今约2.5万年前,持续了约1.2万年。以北海道具有明显技术复杂性和多样性特点的细石器为材料,学... 详细信息

细石叶技术是晚更新世晚期东北亚和西北美新的变革性剥坯技术和适应手段。北海道地区拥有丰富、多样的细石器遗存,相关材料最早可以追溯到距今约2.5万年前,持续了约1.2万年。以北海道具有明显技术复杂性和多样性特点的细石器为材料,学者们基于技术式“阅读”和拼合研究划分出一系列细石核工艺类型和剥坯技法;岛内以楔形细石核为代表的细石器工业传统在不断延续的同时,也表现出明显的阶段性变化,并在一定程度上显示出与气候环境变化较强的相关性。本文对北海道地区晚更新世末次盛冰期以来的气候、环境背景以及细石器的发现与研究历程进行介绍。在此基础上,厘清北海道细石核工艺类型的划分,并对细石器群的阶段性演变进行系统梳理,以期对我国相关研究有所裨益。

关键词：细石叶技术北海道旧石器时代晚期剥坯技法

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树枝状大分子在钯纳米粒子催化领域的应用

东华大学学报（自然科学版） 2015年第6期41卷 781-787页

作者：李光杨垚瑶加藤愼治东华大学材料科学与工程学院上海201620 东华大学纤维材料改性国家重点实验室上海201620 川村理化学研究所

归纳了树枝状大分子在钯纳米粒子催化剂制备及应用领域的研究成果,主要包括树枝状大分子可以有效控制钯纳米粒子的尺寸,从而可以增强催化剂的循环利用能力,并在负载钯纳米粒子体系中有效抑制金属沥出,同时也对树枝状大分子在钯纳米粒子... 详细信息

归纳了树枝状大分子在钯纳米粒子催化剂制备及应用领域的研究成果,主要包括树枝状大分子可以有效控制钯纳米粒子的尺寸,从而可以增强催化剂的循环利用能力,并在负载钯纳米粒子体系中有效抑制金属沥出,同时也对树枝状大分子在钯纳米粒子催化领域的应用前景进行了展望.

关键词：钯纳米粒子催化剂树枝状大分子稳定剂

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灵井许昌人遗址第5层细石核工艺

人类学学报 2014年第3期33卷 285-303页

作者：李占扬李雅楠加藤真二河南省文物考古研究院郑州450000 日本奈良文化财研究所

本文研究的细石核出自灵井"许昌人"遗址第5层,该层为桔黄色粉细砂,2008-2013年发掘,出土细石核82件,其他还有与之相关的材料。该层碳十四年龄为13402±406BP。细石核素材一般为燧石质的石片、小砾石等。根据其毛坯形状、细石叶剥离进度... 详细信息

本文研究的细石核出自灵井"许昌人"遗址第5层,该层为桔黄色粉细砂,2008-2013年发掘,出土细石核82件,其他还有与之相关的材料。该层碳十四年龄为13402±406BP。细石核素材一般为燧石质的石片、小砾石等。根据其毛坯形状、细石叶剥离进度等的差异,形成了角锥形、柱形、圆锥形等各种形状。在剥离石叶过程中,曾运用过台面修理、工作面上端(细石叶头部)修正、台面更新、台面转移等调整手法。灵井石器工业的细石叶工艺是一种以角锥形(型)细石核为主的技术。通过对比,灵井与华北各地的同类细石核大小尺寸接近,与本省临近的大岗、李家沟等细石器遗址应属相同或相近技术传统的细石叶工艺。

关键词：灵井细石核许昌人河南省

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河南灵井许昌人遗址细石器功能研究

第四纪研究 2017年第4期37卷 789-796页

作者：李占扬赵清坡鹿又喜隆加藤真二山东大学文化遗产研究院济南250000 河南省文物考古研究院郑州450000 日本东北大学文学院仙台980-8576 日本奈良文化财研究所奈良630-8577

摘要本文借鉴日本细石叶工业的研究范例，运用高倍微痕分析法对许昌人遗址第5层出土的细石器功能进行分析。结果显示，220件细石叶多为不带使用痕迹，端刮器中19．3％带有明显使用痕迹，雕刻器、钻器、琢背小刀未发现明显使用痕迹。通... 详细信息

摘要本文借鉴日本细石叶工业的研究范例，运用高倍微痕分析法对许昌人遗址第5层出土的细石器功能进行分析。结果显示，220件细石叶多为不带使用痕迹，端刮器中19．3％带有明显使用痕迹，雕刻器、钻器、琢背小刀未发现明显使用痕迹。通过研究端刮器使用痕迹推测其可能用于鞣皮等工作。本文研究对于深入探讨许昌人遗址古人类细石器技术，以及人类的适应生存能力具有重要意义，同时对探讨细石器在东北亚扩散的路径和机制也有重要的参考价值。

关键词：许昌人遗址细石器高倍法功能研究

Portal Vein Stenosis Caused by Postoperative Complications after Pancreatobiliary Surgery

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Surgical Science 2017年第8期8卷 326-333页

作者： Hiroyuki Kinoshita Hideaki Tsubakihara shinji Yamazoe Tomoya kato Kazunari Mori Department of Surgery Naga Municipal Hospital Wakayama Japan

Background: Portal vein (PV) stenosis or obstruction is sometimes observed in patients who were performed pancreatobiliary surgery. These conditions such as pancreatic fistulas (PF) and intra-abdominal infections after pancreatobiliary surgery still represent significant clinical issues. In addition, insufficient attention is paid to the fact that severe stenosis of the PV can result in life-threatening complications. Material and Methods: At our institution, lymph node dissection within the hepatoduodenal ligament was performed for biliary or pancreatic neoplasms in 68 patients between October 2005 and April 2017. The diameter of the PV was measured on computed tomography scans obtained before and after the operation. PV stenosis was defined as a >50% reduction in the diameter of the PV. The degree of PF (Pancreatic Fistula) was defined by the International Study Group of Pancreatic Fistula after pancreaticoduodenectomy. Furthermore, the Clavien-Dindo (CD) classification was used to assess the complications that occurred in cases in which pancreatojejunostomy was not performed. The relationship between the degree of PV stenosis and the occurrence of postoperative complications was analyzed. Results: The overall frequency of PF was 56.3% (18 patients). Grade B or C PF occurred in 5 patients (15.6%). In the present small series, a correlation was detected between the degree of PV stenosis and the occurrence of postoperative complications after pancreatobiliary surgery (p Conclusions: Clinicians should keep in mind that the PV can narrow in cases in which grade B or C PF or intra-abdominal abscesses occur after pancreatobiliary surgery.

关键词： Portal Vein Stenosis Pancreatobiliary Surgery Pancreatic Fistula Intra-Abdominal Infection

Impact of adjustment measures on reducing outpatient waiting time in a community hospital： application of a computer simulation

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Chinese Medical Journal 2010年第5期123卷 574-580页

作者： CHEN Bai-lian LI En-dong Kazunobu Yamawuchi Ken kato shinji Naganawa MIAO Wei-jun Department of Medical Information and Management Science Graduate School of Medicine Nagoya University 65 Tsurumai-cho Showa-ku Nagoya Japan Department of Radiology Graduate School of Medicine Nagoya University 65 Tsurumai-cho Showa-ku Nagoya Japan Scientific Research Management Department Second Affiliated Hospital of Guangzhou Medical University Guangzhou Guangdong 510260 China

Background As an important determinant of patient satisfaction, waiting time, has gained increasing attention in the field of health care services. The present study aimed to illustrate the distribution characteristics of waiting time in a community hospital and explore the impact of potential measures to reduce outpatient waiting time based on a computer simulation approach. Methods Dudng a one-month study period in 2006, a cross-sectional study was conducted in a community hospital located in Shanghai, China. Baseline data of outpatient waiting time were calculated according to the records of registration time and payment time. A simulation technique was adopted to investigate the impact of perspective reform methods on reducing waiting time. Results Data from a total of 10 092 patients and 26 816 medical consultations were collected in the study and 19 947 medical consultations were included. The average of the total visit time for outpatients in this hospital was 43.6 minutes in the morning, 19.1 minutes in the afternoon, and 34.3 minutes for the whole day studied period. The simulation results suggested that waiting time for outpatients could be greatly reduced through the introduction of appointment system and flexible demand-orientated doctor scheduling according to the numbers of patients waiting at different time of the workday. Conclusion Adoption of an appointment system and flexible management of doctor scheduling may be effective way to achieve decreased waiting time.

关键词： waiting time outpatient appointment system