检索结果-南通市图书馆

China Foundry 2024年第4期21卷 379-386页

作者： Yang Liao Ye-yuan Hu Kosuke Ikeda Ryoji Okabe Rui-fen Wu ryota ozaki Qing-yan Xu Key Laboratory for Advanced Materials Processing Technology School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Composite Laboratory Research&Innovation Center Mitsubishi Heavy Industries Ltd.Nagasaki 8510392Japan

Polypropylene is commonly used as a binder for ceramic injection molding,and rapid cooling is often encountered during ***,the crystallization behavior of polypropylene shows a strong dependence on cooling rate due to its semi-crystalline ***,the influence of cooling rate on the quality of final product cannot be *** this study,the fast differential scanning calorimetry(FSC)test was performed to study the influence of cooling rate on the non-isothermal crystallization behavior and non-isothermal crystallization kinetics of a copolymer polypropylene(PP BC03B).The results show that the crystallization temperatures and crystallinity decrease as the cooling rate *** addition,two exothermic peaks occur when cooling rate ranges from 30 to 300 K·s^(-1),indicating the formation of another crystal ***,Ozawa and Mo equations were used to explore the non-isothermal crystallization kinetics,and it can be concluded that the Mo method is suitable for this study.

关键词： cooling rate crystallization temperature crystallinity non-isothermal crystallization kinetics FSC copolymer polypropylene

在线全文

学校读者我要写书评

暂无评论

木山英雄《〈野草〉论》的阅读(上)

现代中文学刊 2024年第1期 4-20页

作者：尾崎文昭陈言(译) 东京大学首都师范大学大学外国语学院日语系

木山英雄的《〈野草〉论》通过对鲁迅《野草》进行解读,将《野草》中鲁迅的诗与哲学的关系加以勾连,由此进入鲁迅的内心世界与中国现代史,这在鲁迅研究史上获得了高度评价,是对“竹内鲁迅”的反拨和有力推进,然而,木山行文与立论的晦涩... 详细信息

木山英雄的《〈野草〉论》通过对鲁迅《野草》进行解读,将《野草》中鲁迅的诗与哲学的关系加以勾连,由此进入鲁迅的内心世界与中国现代史,这在鲁迅研究史上获得了高度评价,是对“竹内鲁迅”的反拨和有力推进,然而,木山行文与立论的晦涩同样在他与读者之间筑起了壁垒。本文对木山的《野草》论进行文本细读,从词语和概念的阐释、句子的释疑,到立论展开逻辑的阐发,以阐述、补注或者说明等多种方式,在消解木山文本的晦涩性的同时,探索木山论述展开的逻辑以及文本蕴含的可能性,以呈现木山的思维框架。在论文最后部分,以丸尾常喜和尾崎文昭的鲁迅论为例,阐明二者对木山英雄鲁迅论的自觉或者不自觉的继承以及与前者的不同,同时深化了木山鲁迅论与竹内鲁迅论的相通之处与不同之处。

关键词：木山英雄鲁迅《〈野草〉论》竹内好

Description of sand–metal friction behavior based on subloadingfriction model

在线全文

学校读者我要写书评

暂无评论

Friction 2022年第10期10卷 1660-1675页

作者： Toshiyuki ozaki Yuki YAMAKAWA Masami UENO Koichi HASHIGUCHI Kyushu Electric Engineering Consultants Inc. Fukuoka 810-0005Japan Department of Civil and Environmental Engineering Tohoku UniversitySendai 980-8579Japan University of the Ryukyus Okinawa 903-0213Japan MSC Software Ltd. Tokyo 101-0054Japan Kyushu University Fukuoka 819-0395Japan

A subloading-friction model is formulated to describe the smooth transient variation from static friction to kinetic friction,the recovery to static friction after the sliding velocity decreases,and the accumulation of sliding displacement under the cyclic loading of contact *** the past relevant studies,however,the model formulation used for simulations is limited to the hypoelastic-based plasticity framework,and the validation of the model is limited to simulations of the test data for metal-to-metal *** this study,the formulation of the subloading-friction model based on a hyperelastic-based plasticity framework is *** the fields of civil,geotechnical,agricultural engineering,and terramechanics,the interaction between soils and metals is critical,as reflected in construction and agricultural machinery,foundation piles,and retaining *** validity of the model for describing the friction between various sands and metals is verified by simulations of the experimental data under monotonic and cyclic loadings.

关键词： subloading-friction model sand-metal friction monotonic/cyclic sliding static/kinetic friction

Goblet cell carcinoid of the appendix:Six case reports

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 Clinical Cases 2024年第22期12卷 5217-5224页

作者： Toshiaki Toshima Ryo Inada Shinya Sakamoto Eri Takeda Takahiro Yoshioka Kento Kumon Naoki Mimura Nobuo Takata Motoyasu Tabuchi Kazuyuki Oishi Takuji Sato Kenta Sui Takehiro Okabayashi Kazuhide ozaki Toshio Nakamura Yuichi Shibuya Manabu Matsumoto Jun Iwata Department of Gastroenterological Surgery Kochi Health Sciences CenterKochi 781-8555Japan Department of Diagnostic Pathology Kochi Health Sciences CenterKochi 781-8555Japan

BACKGROUND Goblet cell carcinoid(GCC)of the appendix is a rare tumor characterized by neuroendocrine and adenocarcinoma *** preoperative diagnosis is very difficult,with most patients complaining mainly of abdominal *** tomography shows swelling of the appendix,so diagnosis is usually made incidentally after appendectomy based on a preoperative diagnosis of *** if a patient undergoes preoperative colonoscopy,accurate endoscopic diagnosis is very difficult because GCC shows a submucosal growth pattern with invasion of the appendiceal *** SUMMARY Between 2017 and 2022,6 patients with GCC were treated in our *** presenting complaint for 5 of these 6 patients was abdominal *** 5 patients underwent appendectomy,including 4 for a preoperative diagnosis of appendicitis and the other for diagnosis and treatment of an appendiceal *** sixth patient presented with vomiting and underwent ileocecal resection for GCC diagnosed from preoperative *** 2 patients with GCC underwent colonoscopy,no neoplastic changes were *** of the six patients showed lymph node metastasis on pathological *** of the last followup(median:15 mo),all cases remained alive without *** As preoperative diagnosis of GCC is difficult,this possibility must be considered during surgical treatments for presumptive appendicitis.

关键词： Goblet cell carcinoid Appendix Preoperative diagnosis Endoscopic diagnosis Surgical treatment Case report

Analysis for Effects of Temperature Rise of PV Modules upon Driving Distance of Vehicle Integrated Photovoltaic Electric Vehicles

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy and Power Engineering 2024年第4期16卷 131-150页

作者： Masafumi Yamaguchi Yasuyuki Ota Taizo Masuda Christian Thiel Anastasios Tsakalidis Arnulf Jaeger-Waldau Kenji Araki Kensuke Nishioka Tatsuya Takamoto Takashi Nakado Kazumi Yamada Tsutomu Tanimoto Yosuke Tomita Yusuke Zushi Kenichi Okumura Takashi Mabuchi Akinori Satou Kyotaro Nakamura Ryo ozaki Nobuaki Kojima Yoshio Ohshita Toyota Technological Institute Nagoya Japan Faculty of Engineering Miyazaki University Miyazaki Japan Toyota Motor Corporation Susono Japan European Commission— Joint Research Centre Ispra Italy Sharp Corporation Nara Japan Toyota Motor Corporation Toyota Japan Nissan Motor Corporation Yokosuka Japan

The development of vehicle integrated photovoltaics-powered electric vehicles (VIPV-EV) significantly reduces CO2 emissions from the transport sector to realize a decarbonized society. Although long-distance driving of VIPV-EV without electricity charging is expected in sunny regions, driving distance of VIPV-EV is affected by climate conditions such as solar irradiation and temperature rise of PV modules. In this paper, detailed analytical results for effects of climate conditions such as solar irradiation and temperature rise of PV modules upon driving distance of the VIPV-EV were presented by using test data for Toyota Prius and Nissan Van demonstration cars installed with high-efficiency InGaP/GaAs/InGaAs 3-junction solar cell modules with a module efficiency of more than 30%. The temperature rise of some PV modules studied in this study was shown to be expressed by some coefficients related to solar irradiation, wind speed and radiative cooling. The potential of VIPV-EV to be deployed in 10 major cities was also analyzed. Although sunshine cities such as Phoenix show the high reduction ratio of driving range with 17% due to temperature rise of VIPV modules, populous cities such as Tokyo show low reduction ratio of 9%. It was also shown in this paper that the difference between the driving distance of VIPV-EV driving in the morning and the afternoon is due to PV modules’ radiative cooling. In addition, the importance of heat dissipation of PV modules and the development of high-efficiency PV modules with better temperature coefficients was suggested in order to expand driving range of VIPV-EV. The effects of air-conditioner usage and partial shading in addition to the effects of temperature rise of VIPV modules were suggested as the other power losses of VIPV-EV.

关键词： Vehicle Integrated Photovoltaics (VIPV) VIPV-Powered Electric Vehicles Driving Distance PV Modules Solar Irradiation Temperature Rise Radiative Cooling

Nanotwin-assisted nitridation of quenched FeNi alloy nanopowders for rare-earth-free magnets

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2023年第34期165卷 244-252页

作者： Jian Wang Yusuke Hirayama Kazuyuki Suzuki Kwangjae Park Zheng Liu Kenta Takagi Kimihiro ozaki Innovative Functional Materials Research Institute National Institute of Advanced Industrial Science and Technology4-205SakurazakaMoriyamaNagoya463-8560Japan

L1_(0)-ordered FeNi alloy with a high uniaxial magnetic anisotropy and large magnetic moment is a promising candidate for rare-earth-free permanent magnets ***,the synthesis of this chemically ordered phase remains a longstanding challenge because of its low chemical order-disorder transition temperature(200-320℃).Although a non-equilibrium synthetic route based on a nitrogen topotactic reaction has been proposed as a valid approach,the volume fraction and degree of chemical ordering of the product phase are ***,we propose a promising approach that promotes the efficient formation of L1_(0)-ordered nitride phase in FeNi nanopowders by introducing a quenching treatment during a low-oxygen induction thermal plasma *** quenched FeNi nanopowders possessed much smaller powder sizes(40.4 vs 74.0 nm),exhibited higher number densities of nanotwins(39.8%vs 24.1%)and formed much larger volume fraction(33.6 wt.%vs 0.6 wt.%)of ordered phase than the unquenched ***,quenching-induced high-density nanotwins led to the dominant coverage of serrated{001}crystal facets over the surfaces of the FeNi *** unique features substantially accelerated the formation of the L1_(0)-ordered nitride phase in the FeNi nanopowders because the{001}crystallographic orientation had the highest nitrogen *** work provides not only a valid synthetic approach for mass production of the L10-ordered nitride phase in FeNi nanopowders but also novel insights into the crystal-defect-assisted nitridation of nanomaterials.

关键词： Rare-earth-free Permanent magnet FeNi Nitridation Nanotwin

Near-optimal intense and powerful terahertz source by optical rectification in lithium niobate crystal

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Photonics Research 2022年第2期10卷 340-346页

作者： L.Guiramand J.E.Nkeck X.Ropagnol T.ozaki F.Blanchard Département de génieélectrique École de technologie supérieureMontréalQuébec H3C 1K3Canada Institut National de la Recherche Scientifique-Energie Materiaux Telecommunications VarennesQuebec J3X 1P7Canada

Using a 400 μJ ytterbium laser combined with a novel pulse compression technique, we demonstrate a stateof-the-art terahertz(THz) source from the tilted-pulse front pumping scheme in lithium niobate at room temperature with record efficiency of 1.3% capable of generating 74 m W of average power and 400 kV/cm at focus. Key points of this demonstration include the use of a pump pulse duration of 280 fs in combination with a stair-step echelon mirror and an off-axis ellipsoidal mirror. This source has unmatched characteristics of generating intense and powerful THz pulses at the same time and remains highly scalable as compared to existing Ti:sapphire-based THz sources pumped in the millijoule range.

关键词： pumped pumping pump

New microbial electrosynthesis system for methane production from carbon dioxide coupled with oxidation of sulfide to sulfate

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2023年第3期125卷 786-797页

作者： Hiromi Kambara Ha T.T.Dinh Shuji Matsushita Yoshiteru Aoi Tomonori Kindaichi Noriatsu ozaki Akiyoshi Ohashi Department of Civil and Environmental Engineering Graduate School of EngineeringHiroshima University1–4–1KagamiyamaHigashi-HiroshimaHiroshima 739–8527Japan Faculty of Environment Ho Chi Minh City University of Natural Resources and Environment236 Le Van Sy1 WardTan Binh DistrictHo Chi Minh CityVietnam Agricultural Technology Research Center Hiroshima Prefectural Technology Research Institute6869HaraHachihonmatsuHigashihiroshimaHiroshima 739–0151Japan Program of Biotechnology Graduate School of Integrated Sciences for LifeHiroshima University1–3–1KagamiyamaHigashi-HiroshimaHiroshima 739–8530Japan Department of Civil and Environmental Engineering Graduate School of Advanced Science and EngineeringHiroshima University1–4–1KagamiyamaHigashi-HiroshimaHiroshima 739–8527Japan

Microbial electrosynthesis system (MES) is a promising method that can use carbon dioxide,which is a greenhouse gas,to produce methane which acts as an energy source,without using organic ***,this bioelectrical reduction reaction can proceed at a certain high applied voltage when coupled with water oxidation in the anode coated with metallic *** coupled with the oxidation of HS–to SO_(4)^(2-),methane production is thermodynamically more feasible,thus implying its production at a considerably lower applied *** this study,we demonstrated the possibility of electrotrophic methane production coupled with HS–oxidation in a cost-effective bioanode chamber in the MES without organic substrates at a low applied voltage of 0.2 *** addition,microbial community analyses of biomass enriched in the bioanode and biocathode were used to reveal the most probable pathway for methane production from HS–*** the bioanode,electroautotrophic SO_(4)^(2-)production accompanied with electron donation to the electrode is performed mainly by the following two steps:first,incomplete sulfide oxidation to sulfur cycle intermediates (SCI) is performed;then the produced SCI are disproportionated to HS^(–)and SO_(4)^(2-).In the biocathode,methane is produced mainly via H_(2)and acetate by electronaccepting syntrophic bacteria,homoacetogens,and acetoclastic ***,a new ecofriendly MES with biological H_(2)S removal is established.

关键词： Microbial electrosynthesis system Low applied voltage Organic substrates Methane production Sulfur oxidation

Biological methane production coupled with sulfur oxidation in a microbial electrosynthesis system without organic substrates

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2022年第6期34卷 68-78页

作者： Ha T.T.Dinh Hiromi Kambara Shuji Matsushita Yoshiteru Aoi Tomonori Kindaichi Noriatsu ozaki Akiyoshi Ohashi Department of Civil and Environmental Engineering Graduate School of Advanced Science and EngineeringHiroshima University1-4-1KagamiyamaHigashihiroshimaHiroshima 739-8527Japan Faculty of Environment Ho Chi Minh City University of Natural Resources and Environment236 Le Van Sy1 WardTan Binh DistrictHo Chi Minh CityViet Nam Agricultural Technology Research Center Hiroshima Prefectural Technology Research Institute6869HaraHachihonmatsuHigashihiroshimaHiroshima 739-0151Japan Program of Biotechnology Graduate School of Integrated Sciences for LifeHiroshima University1-3-1KagamiyamaHigashihiroshimaHiroshima 739-8530Japan

Methane is produced in a microbial electrosynthesis system(MES) without organic substrates. However, a relatively high applied voltage is required for the bioelectrical *** this study, we demonstrated that electrotrophic methane production at the biocathode was achieved even at a very low voltage of 0.1 V in an MES, in which abiotic HS-oxidized to SO_(4)^(2-) at the anodic carbon-cloth surface coated with platinum powder. In addition, microbial community analysis revealed the most probable pathway for methane production from electrons. First, electrotrophic H_(2) was produced by syntrophic bacteria, such as Syntrophorhabdus, Syntrophobacter, Syntrophus, Leptolinea, and Aminicenantales, with the direct acceptance of electrons at the biocathode. Subsequently, most of the produced H_(2) was converted to acetate by homoacetogens, such as Clostridium and Spirochaeta 2. In conclusion,the majority of the methane was indirectly produced by a large population of acetoclastic methanogens, namely Methanosaeta, via acetate. Further, hydrogenotrophic methanogens,including Methanobacterium and Methanolinea, produced methane via H_(2).

关键词： Bioelectricity Homoacetogens Methane production Microbial electrosynthesis system Sulfur oxidation

Repeat laparoscopic anatomical liver resection in a hepatocellular carcinoma patient:a case report

在线全文

学校读者我要写书评

暂无评论

Hepatoma Research 2022年第1期8卷 248-253页

作者： Kazuharu Igarashi Kohei Mishima Takahiro ozaki Go Wakabayashi Department of Surgery Ageo Central General HospitalAgeoSaitama 362-8588Japan Department of General-Pediatric Hepatobiliary Pancreatic Surgery Kitasato University School of MedicineSagamiharaKanagawa 252-0374Japan

Anatomical resection(AR)has been reported to achieve better long-term outcomes than non-anatomical resection for the treatment of hepatocellular carcinoma(HCC).The surgical feasibility and oncological significance of laparoscopic AR(LAR),especially“subsegment resection”,“cone unit resection”,and repeat LAR for HCC,remain *** present a 67-year-old patient with alcoholic liver cirrhosis and HCC who underwent full LAR three times,focusing on the technical aspects of the Glissonean *** LAR for recurrent HCC could be a safe and feasible ***,HCC recurred in the neighboring segment twice,even though pathological vascular invasion and marginal remnants were not *** should investigate the oncological significance and advancements in subsegmentectomy and cone unit resection,in the future.

关键词： Repeat laparoscopic anatomical liver resection HCC Glissonean approach subsegmentectomy cone unit resection