检索结果-南通市图书馆

Advances in Manufacturing 2024年第2期12卷 227-251页

作者： Si-Xiao Gao Hui Liu Jun ota Key Laboratory of Traffic Safety on Track of Ministry of Education Institute of Artificial Intelligence and Robotics(IAIR)School of Traffic and Transportation EngineeringCentral South UniversityChangsha410075People’s Republic of China Research into Artifacts Center for Engineering School of EngineeringThe University of TokyoTokyoJapan

Currently,simultaneous buffer and service rate allocation is a topic of interest in the optimization of manufacturing *** allocation problems have been solved previously to satisfy economic requirements;however,owing to the progress of green manufacturing,energy conservation and environmental protection have become increasingly ***,an energy-efficient approach is developed to maximize the throughput and minimize the energy consumption of manufacturing systems,subject to the total buffer capacity,total service rate,and predefined energy *** energy-efficient approach integrates the simulated annealing-non-dominated sorting genetic algorithm-II with the honey badger algorithm-histogram-based gradient boosting regression *** former algorithm searches for Pareto-optimal solutions of sufficient *** latter algorithm builds prediction models to rapidly calculate the throughput,energy consumption,and energy *** examples show that the proposed hybrid approach can achieve a better solution quality compared with previously reported ***,the prediction models can rapidly evaluate manufacturing systems with sufficient *** study benefits the multi-objective optimization of green manufacturing systems.

关键词： Energy-efficient allocation Multi-objective optimization Energy efficiency Energy consumption Machine learning

Evaluation of Mechanical Properties of Highly Filled Jute Fiber Reinforced Composites

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

材料科学与工程（中英文A版） 2023年第4期13卷 104-111页

作者： takao ota Department of Control Engineering National Institute of TechnologyNara College22 Yata-choYamatokoriyamaNara 639-1080Japan

This study aims for development of highly filled jute fiber reinforced composites that contains jute fiber over fiber weight fraction 60%,and jute fiber reinforced composite was fabricated by the hot-pressing *** molding temperature was changed from 175°C to 230°C,to investigate the effect of molding temperature on the mechanical properties of jute fiber reinforced *** effect of surface treatment of jute fiber on the mechanical properties of jute fiber reinforced composites was also *** a result,the jute fiber reinforced composites using surface treated fiber has low porosity,and the jute fiber reinforced composite having low porosity has high flexural strength and *** jute fiber reinforced composite using acetone treated fiber molded at 200°C has the maximum flexural strength and modulus.

关键词： Natural fiber biodegradable plastics high fiber weight fraction surface treatment mechanical properties.

Effect of Silane Coupling Agent Concentration on Interfacial Properties of Basalt Fiber Reinforced Composites

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

材料科学与工程（中英文A版） 2023年第2期13卷 36-42页

作者： takao ota Department of Control Engineering National Institute of TechnologyNara College22 Yata-choYamatokoriyamaNara 639-1080Japan

The purpose of this study is to investigate the effect of the concentration of silane coupling solution on the tensile strength of basalt fiber and the interfacial properties of basalt fiber reinforced polymer *** surface treatment of basalt fibers was carried out using an aqueous alcohol solution *** fibers were subjected to surface treatment with 3-Methacryloxypropyl trimethoxy silane at 0.5 wt.%,1 wt.%,2 wt.%,4 wt.%and 10 wt.%.The basalt monofilament tensile tests were carried out to investigate the variation in strength with the concentration of the silane coupling *** microdroplet test was performed to examine the effect of the concentration of the silane coupling agent on interfacial strength of basalt reinforced polymer *** film was formed on the surface of the basalt fiber treated silane coupling agent *** tensile strength of basalt fiber increased because the damaged fiber surface was repaired by the firm of silane coupling *** firm was effective in not only the surface protection of basalt fiber but also the improvement on the interfacial strength of fiber-matrix ***,the surface treatment using the high concentration silane coupling agent solution has an adverse effect on the mechanical properties of the composite materials,because of causing the degradation of the interfacial strength of the composite materials.

关键词： Natural mineral fiber reinforced composites basalt fiber silane coupling agent interface fiber/matrix bond

Mechanical Properties of Particleboard Made from Rice Husk

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

材料科学与工程（中英文B版） 2015年第7期5卷 263-269页

作者： takao ota Tomoya Okamoto Innovation Center for Cooperative Research National Institute of Technology Toyama College Toyama 939-8630 Japan Department of Mechanical Engineering National Institute of Technology Toyama College Toyama 939-8630 Japan

This study was conducted to develop particleboard formed from rice husk particles by hot pressing with a PVA (Polyvinyl alcohol) binder. A preform was prepared using mixed rice husk particles, PVA powder, and purified water. The rice husk particle and the PVA binder contents were fixed at 80:20. The rice husk particleboard was fabricated using the hot pressing method. The flexural strength and modulus of resulting particleboard were investigated. Results showed that mainly, the rice husk particleboard satisfied the reference flexural strength (flexural strength is 13 MPa or more) of base type 13 particleboard according to JIS A 5908. However, it exceeded the reference density even for flexural modulus higher than 2.5 GPa.

关键词：刨花板稻壳力学性能聚乙烯醇弯曲强度热压烧结弹性模量抗折强度

No-touch isolation technique in emergency pancreaticoduodenectomy for neoplastic hemorrhage: Two case reports and review of literature

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Surgery 2024年第6期16卷 1910-1917页

作者： Akihiro Cho Satoshi Katagiri Masao ota Shunsuke Onizawa Ryota Higuchi Toshiya Sugishita Yukiko Niwa Takeshi Ishita Toshihiko Mouri Akita Kato Moe Iwata Division of Gastroenterological Surgery Tokyo Women’s Medical UniversityYachiyo Medical CenterChiba 276-8524Japan

BACKGROUND Emergency pancreaticoduodenectomy(EPD)is a rare event for complex periam-pullary *** intraoperative blood loss is correlated with poor post-operative *** SUMMARY Two patients underwent EPD using a no-touch isolation technique,in which all arteries supplying the pancreatic head region were ligated and divided before manipulation of the pancreatic head and *** operative times were 220 and 239 min,and the blood loss was 70 and 270 g,*** patients were discharged on the 14^(th) and 10^(th) postoperative day,***-two patients underwent EPD for the treatment of neoplastic *** mean operative time was 361.6 min,and the mean blood loss was 747.3 *** comp-lication rate was 37.5%.The in-hospital mortality rate was 9.38%.CONCLUSION The no-touch isolation technique is feasible,safe,and effective for reducing intraoperative blood loss in EPD.

关键词： No-touch isolation technique Pancreaticoduodenectomy Emergency pancre-aticoduodenectomy Neoplastic bleeding Superior mesenteric artery first approach Case report

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

日本站前广场的建设特征及对我国的启示

都市快轨交通 2024年第3期37卷 170-177页

作者：马飞太田充徐畅日本筑波大学系统情报工学院日本筑波北京大学城市规划与设计学院广东深圳518055

随着中国轨道交通和城市化进程的不断发展,单一功能的站前广场规划已无法满足当下多样化的城市建设需求。本研究通过对日本站前广场的建设历史和相关规划标准的梳理,针对日本多个不同级别城市的站前广场进行实地调研,并且分析代表性案... 详细信息

随着中国轨道交通和城市化进程的不断发展,单一功能的站前广场规划已无法满足当下多样化的城市建设需求。本研究通过对日本站前广场的建设历史和相关规划标准的梳理,针对日本多个不同级别城市的站前广场进行实地调研,并且分析代表性案例的空间规划和开发方式,总结出日本站前广场的规划经验:重视站前广场在站城一体化开发中的空间调节作用,根据规划需求调整广场的城市功能;广场建设要结合站点周边地区发展特点,注重广场的灵活布局和多样化利用;广场规划各阶段设立合作组织,注重广场各建设部门的相互沟通和责任划分以及制定持续的利用者参与机制和完善的广场运营制度等,以期为中国轨道交通可持续发展和合理的城市空间规划提供参考和借鉴。

关键词：日本铁路公共交通城市空间站点开发站前广场

X-ray spectroscopy of clusters of galaxies

在线全文

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2012年第8期12卷 973-994页

作者： Naomi ota Department of Physics Nara Women’s University KitauoyanishimachiNaraNara 630-8506Japan

Clusters of galaxies are the most massive objects in the Universe and precise knowledge of their mass structure is important to understand the history of structure formation and constrain still unknown types of dark contents of the Universe. X-ray spectroscopy of galaxy clusters provides rich information about the physical state of hot intracluster gas and the underlying potential structure. In this paper, starting from the basic description of clusters under equilibrium conditions, we review properties of clusters revealed primarily through X-ray observations considering their thermal and dynamical evolutions. The future prospects of cluster studies using upcoming X-ray missions are also mentioned.

关键词： galaxies: clusters: general -- galaxies: intergalactic medium -- X-rays:galaxies: clusters -- cosmology: observations -- cosmology: dark matter

On the Live Coloration and Partial Mitochondrial DNA Sequences in the Topotypic Population of Goniurosaurus kuroiwae orientalis(Squamata: Eublepharidae), with Description of a New Subspecies from Tokashikijima Island, Ryukyu Archipelago, Japan

在线全文

学校读者我要写书评

暂无评论

Asian Herpetological Research 2017年第2期18卷 96-107页

作者： Masanao HONDA Hidetoshi ota Faculty of Life and Environmental Sciences University of Tsukuba Institute of Natural and Environmental Sciences University of Hyogo and Museum of Nature and Human Activities

Careful investigations of live coloration and other characters in the eublepharid gecko Goniurosaurus kuroiwae orientalis from Tonakijima Island, the type locality of the subspecies in the Central Ryukyus, Japan, revealed its slight but consistent external differences from the consubspecific Tokashikijima population, whose phylogenetically divergent status against the former had been strongly suggested in a previous molecular study. A new subspecies, Goniurosaurus kuroiwae sengokui subsp. nov., is thus described for the Tokashikijima population. In life, Goniurosaurus k. sengokui subsp. nov. can be discriminated from G. k. orientalis in showing tint of reddish or pinkish, instead of yellowish, coloration in dorsal body pattern, and also usually darker and more or less reddish, instead of yellowish or grayish, iris in both adults and juveniles. Recalculation of sequence data at hand with relevant Gen Bank data confirmed substantial sequence divergences of G. k. sengokui from all other congeneric taxa of the Ryukyus described so far.

关键词： Eublepharidae Goniurosaurus morphology taxonomy Ryukyu Archipelago

Laser Manipulation of Micro Untransmissive Particles in Water

在线全文

学校读者我要写书评

暂无评论

Journal of Thermal Science 2009年第1期18卷 85-90页

作者： Masahiro ota Makoto SHIMODA Yuuki SUSAI Division of Mechanical Engineering Tokyo Metropolitan University

The laser trapping of untransmissive particles are discussed in this paper. Photon can generate the momentum tothe untransmissive particle by diffraction and reflection on the surface of the particles. We tried laser trapping ofuntransmissive particles using an attractive force caused by the diffraction and radiation force caused by *** laser trapping system includes CW YAG laser, which has 1.064 μm in wave length and an optical *** motions of particles were monitored by a CCD camera on the top of the microscope and recordedby PC connected to the CCD camera.

关键词： Laser manipulation Laser trapping Optical tweezers Micro manipulation Micro sphere