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Metal matrix nanocomposites in tribology: Manufacturing, performance, and mechanisms

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Friction 2022年第10期10卷 1596-1634页

作者： Shuaihang PAN Kaiyuan JIN Tianlu WANG Zhinan ZHANG Long ZHENG noritsugu UMEHARA Department of Mechanical and Aerospace Engineering University of California Los Angeles(UCLA)Los AngelesCA 90095USA Physical Intelligence Department Max Planck Institute for Intelligent SystemsStuttgart 70569Germany Stake Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory of Bionic Engineering(Ministry of Education) College of Biological and Agricultural EngineeringJilin UniversityChangchun 130022China Micro-Nano Mechanical Science Laboratory Department of Micro-Nano Mechanical Science and EngineeringGraduate School of EngineeringNagoya UniversityChikisa-ku Furo-choNagoyaAichi 464-8601Japan

Metal matrix nanocomposites(MMNCs)become irreplaceable in tribology industries,due to their supreme mechanical properties and satisfactory tribological ***,due to the dual complexity of MMNC systems and tribological process,the anti-friction and anti-wear mechanisms are unclear,and the subsequent tribological performance prediction and design of MMNCs are not easily possible:A critical up-to-date review is needed for MMNCs in *** review systematically summarized the fabrication,manufacturing,and processing techniques for high-quality MMNC bulk and surface coating materials in ***,important factors determining the tribological performance(mainly anti-friction evaluation by the coefficient of friction(CoF)and anti-wear assessment with wear rate)in MMNCs have been investigated thoroughly,and the correlations have been analyzed to reveal their potential coupling/synergetic roles of tuning tribological behavior of *** importantly,this review combined the classical metal/alloy friction and wear theories and adapted them to give a(semi-)quantitative description of the detailed mechanisms of improved anti-friction and anti-wear performance in *** guarantee the universal applications of these mechanisms,their links with the analyzed influencing factors(e.g.,loading forces)and characteristic features like tribo-film have been *** approach forms a solid basis for understanding,predicting,and engineering MMNCs’tribological behavior,instead of pure phenomenology and experimental ***,the pathway to achieve a broader application for MMNCs in tribo-related fields like smart materials,biomedical devices,energy storage,and electronics has been concisely discussed,with the focus on the potential development of modeling,experimental,and theoretical techniques in MMNCs’tribological *** general,this review tries to elucidate the complex tribo-performances of MMNCs in a fundamentally universal yet straightfor

关键词： metal matrix nanocomposites nanophases tribology manufacturing processes anti-wear performance strengthening effects anti-wear mechanisms

Endoscopic naso-pancreatic stent-guided single-branch resection of the pancreas for multiple intraductal papillary mucinous adenomas

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World Journal of Gastroenterology 2006年第44期12卷 7203-7205页

作者： Tamotsu Kuroki Yoshitsugu Tajima Ryuji Tsutsumi noritsugu Tsuneoka Amane Kitasato Tomohiko Adachi Takashi Kanematsu Department of Surgery Nagasaki University Graduate School of Biomedical Sciences 1-7-1 Sakamoto Nagasaki 852-8501 Japan

In benign or low-grade malignant pancreatic tumors, complete removal of the lesion is sufficient for a cure, and thus minimal resection techniques with preservation of the pancreatic functional reserve have advantages over more extended pancreatic resections. However, a high incidence of postoperative pancreatic fistula in such procedures has been reported. Moreover, branch-type intraductal papillary mucinous neoplasms of the pancreas tend to locate in the head of the pancreas, and show less malignant potential. We describe an endoscopic naso- pancreatic stent-guided single-branch resection of the pancreas for branch-type multiple intraductal papillary mucinous adenomas, along with a gastric wall-covering method for the prevention of pancreatic leakage.

关键词： Intraductal papillary mucinous neoplasm Single-branch resection Gastric wall-covering method

Transnasal endoscopic retrograde chalangiopancreatography using an ultrathin endoscope: A prospective comparison with a routine oral procedure

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World Journal of Gastroenterology 2008年第10期14卷 1514-1520页

作者： Akihiro Mori noritsugu Ohashi Takako Maruyama Hideharu Tatebe Katsuhisa Sakai Takashi Shibuya Hiroshi Inoue Shoudou Takegoshi Masataka Okuno Department of Gastroenterology Inuyama Chuo Hospital Inuyama 484-8511 Japan

AIM: To investigate if transnasal endoscopic retrograde cholangiopancreatography (n-ERCP) using an ultrathin forward-viewing scope may overcome the disadvantages of conventional oral ERCP (o-ERCP) related to the large- caliber side-viewing duodenoscope. METHODS: The study involved 50 patients in whom 25 cases each were assigned to the o-ERCP and n-ERCP groups. We compared the requirements of esophagogastroduodenoscopy (EGD) prior to ERCP, rates and times required for successful cannulation into the pancreatobiliary ducts, incidence of post-procedure hyperamylasemia, cardiovascular parameters during the procedure, the dose of a sedative drug, and successful rates of endoscopic naso-biliary drainage (ENBD). RESULTS: Screening gastrointestinal observations were easily performed by the forward-viewing scope and thus no prior EGD was required in the n-ERCP group. There was no significant difference in the rates or times for cannulation, or incidence of hyperamylasemia between the groups. However, the cannulation was relatively difficult in n-ERCP when the scope appeared U-shape under fluoroscopy. Increments of blood pressure and the amount of a sedative drug were significantly lower in the n-ERCP group. ENBD was successfully performed succeeding to the n-ERCP in which mouth-to-nose transfer of the drainage tube was not required. CONCLUSION: n-ERCP is likely a well-tolerable methodwith less cardiovascular stress and no need of prior EGD or mouth-to-nose transfer of the ENBD tube. However, a deliberate application is needed since its performance is difficult in some cases and is not feasible for some endoscopic treatments such as stenting.

关键词： Endoscopic retrograde chalangiopancreatography Nasal endoscopy Cardiovascular stress Blood pressure Sedation Endoscopic naso-biliary drainage

STUDIES ON THE FORMATION AND STRUCTURE OF LIGNIN IN RICE PLANT BY RADIOTRACER METHOD

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STUDIES ON THE FORMATION AND STRUCTURE OF LIGNIN IN RICE PLA...

Effect of technique parameters on characteristics of hydrogen-free DLC films deposited by surface wave-sustained plasma

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作者： noritsugu Terashima Faculty of Agric. Nagoya University Nagoya464 Japan

＜正＞Studies on rice straw lignin were made by radiotracer method with respect to heterogeneous distribution of lignin building stones , and formation, morphological location and chemical association of p-coumaric and ferulic acids with cell wall polymers. The lignins in compound middle lamella of proto xylem or metaxylem vessels are rich in p-hydroxyphenylpropane and guaiacylpropane units, while the lignin in parenchyma cell wall is rich in guaiacylpropane and syringylpropane units. Phenolic acids occur in every kind of cell wall and increase in amount with the progress of lignification. Less ferulic acid is contained in secondary cell wall of fiber, while the molar ratio of p-coumaric acid to ferulic acid in compound middle lamella of vessels and parenchyma varies with the degree of lignification. Ferulic acid is deposited prior to p-coumaric acid in the early stage of cell wall formation and linked mainly to carbohydrates.

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Effect of technique parameters on characteristics of hydroge...

在线实时浓度监测减少环境压力,降低总体拥有成本

20th Congress of the International Commission for Optics

作者： Hiroyuki Kousaka noritsugu Umehara Nagoya University Furo-cho Chikusa-ku Nagoya 464-8603 Japan Nagoya University Furo-cho Chikusa-ku Nagoya 464-8603 Japan

Hydrogen-free diamond-like carbon (DLC) films were deposited by a new-type surface wave-sustained plasma physical vapor deposition (SWP-PVD) system under various technique conditions. Electron density

关键词： DLC films Surface wave-sustained plasma (SWP) Microwave power Plasma density

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集成电路应用 2009年第3期26卷 32-35页

作者： Ron Chiarello noritsugu Ishida Jetalon Solutions Inc. 世伟洛克公司

现场实时浓度监测对半导体行业65nm及以下技术发展至关重要,这将提高产量减少浪费。本文的案例研究将折射指数技术与自动滴定和其它传感器技术进行了比较。

关键词：环境压力浓度监测总体拥有成本在线实时液态化学品半导体制造业浓度测量最小化

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MAGIC抛光方法及其研究进展

润滑与密封 2007年第8期32卷 148-151页

作者：朱永生梅原德次西安交通大学现代设计及转子轴承系统教育部重点实验室陕西西安710049 名古屋大学工学研究科

MAGIC(MAGnetic Intelligent Compounds)是由包含磁性颗粒和磨粒的磁性流体固化形成的新型抛光材料。MAGIC中磁性颗粒形成的特殊排列可使磨粒均匀分布,因而MAGIC抛光可高效地获得小粗糙度的表面;另外,MAGIC可浇铸成形,故可用于复杂型面... 详细信息

MAGIC(MAGnetic Intelligent Compounds)是由包含磁性颗粒和磨粒的磁性流体固化形成的新型抛光材料。MAGIC中磁性颗粒形成的特殊排列可使磨粒均匀分布,因而MAGIC抛光可高效地获得小粗糙度的表面;另外,MAGIC可浇铸成形,故可用于复杂型面及狭小内表面的机械化抛光。简要介绍了MAGIC磨石的组成、制作方法、抛光效果以及目前的研究进展情况。

关键词： MAGIC 抛光磁性辅助加工

基于柔性气压驱动器的可穿戴式腰部助力机器人研究

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自动化学报 2016年第12期42卷 1849-1858页

作者：李向攀韩建海郭冰菁张彦斌赵菲菲则次俊郎河南科技大学机电工程学院日本津山高等专门学校

针对老龄化社会对于康复和看护助力搬运的需要,提出了用气压驱动器实现轻量、柔性助力、穿戴舒适的可穿戴式腰部助力机器人.机器人采用无外骨骼的结构设计,可以给护理人员在提升重物和静态保持作业时输出腰部所需助力,降低下腰痛(Low ba... 详细信息

针对老龄化社会对于康复和看护助力搬运的需要,提出了用气压驱动器实现轻量、柔性助力、穿戴舒适的可穿戴式腰部助力机器人.机器人采用无外骨骼的结构设计,可以给护理人员在提升重物和静态保持作业时输出腰部所需助力,降低下腰痛(Low back pain,LBP)致病风险.通过对重物搬运作业中穿戴者竖脊肌表面肌电信号(Surface electromyography,s EMG)评估、基于测力平台最大搬举重量测试、静态弯腰负重作业下人体重心(Center of gravity,COG)移动轨迹等相关实验,验证了助力有效性.

关键词：可穿戴式助力机器人柔性气压驱动器外骨骼

新型表面波等离子体源的诊断及不同工艺条件下的等离子体特性

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真空科学与技术学报 2006年第3期26卷 214-218页

作者：徐均琪上坂裕之梅原德次刁东风西安工业大学光电工程学院名古屋大学大学院工学研究科西安交通大学西安710049

表面波等离子体(Surface-wave-sustained plasma,SWP)是近年发展起来的一种新型低压、高密度等离子体。应用这种技术,很容易实现镀膜过程中的离子束辅助沉积(IBAD),从而制备出性能优异的类金刚石薄膜(DLC)。本文介绍了一种新型的SWP源,... 详细信息

表面波等离子体(Surface-wave-sustained plasma,SWP)是近年发展起来的一种新型低压、高密度等离子体。应用这种技术,很容易实现镀膜过程中的离子束辅助沉积(IBAD),从而制备出性能优异的类金刚石薄膜(DLC)。本文介绍了一种新型的SWP源,说明了朗缪尔探针等离子体诊断的基本原理,研究了微波功率、靶电压、真空度等对等离子体特性的影响。测试了不同工艺条件下的等离子体密度,电子温度,等离子体电位,悬浮电位。研究结果表明,微波功率、靶电压和真空度等参数对等离子体特性具有重要的影响。结果同时表明,这种表面波等离子体源即使在0.85 Pa的真空度下也能够产生高达1.87×1011cm-3的电子密度(在2.8 Pa可达2.1×1012cm-3)。

关键词：表面波等离子体工艺参数电子密度类金刚石薄膜