检索结果-南通市图书馆

中国继续医学教育 2009年第3期1卷 82-82页

作者： hironori tsujimoto 郑雪咏(编译) 蔡秀军(审校) 日本防卫医科大学不详

病例汇报:十二指肠类癌发病率极低,只占所有类癌的2.6%。由于胃肠道的类癌可能通过黏膜下播散,使得即使在疾病的早期,内镜下的黏膜切除术(EMR)也不能完整切除肿瘤,而且十二指肠壁较胃壁薄的多,EMR时极易导致十二指肠穿孔。

关键词：十二指肠腹腔镜类癌内镜下胃肠道完整切除切除术微创手术发病率肿瘤残留

Pneumatosis intestinalis with obstructing intussusception:A case report and literature review

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Surgery 2016年第2期8卷 173-178页

作者： Yujiro Itazaki hironori tsujimoto Nozomi Ito Hiroyuki Horiguchi Shinsuke Nomura Kyohei Kanematsu Shuichi Hiraki Suefumi Aosasa Junji Yamamoto Kazuo Hase Department of Surgery National Defense Medical College

Pneumatosis intestinalis(PI) often represents a benign condition that should not be considered as an argument for surgery. We report a patient with PI and obstructing intussusception who underwent urgent colectomy and review the literatures regarding PI with intussusception. A 20-year-old man presented at our hospital with a 3-d intermittent lower abdominal pain history. He underwent steroid therapy for membranoproliferative glomerulonephritis for 4 years. Computed tomography revealed ascending colon intussusception with air within the wall. Intraoperative colonoscopy revealed numerous soft polypoid masses with normal overlying mucosa and right hemicolectomy was performed. Histological examination of colonic wall sections revealed large cysts in the submucosal layer. The pathological diagnosis was PI. Nine cases of intussusception associated with primary PI have been reported. Although primary PI often represents a benign condition that should not be considered as an argument for surgery,if the case involves intussusception and obstruction,emergent laparotomy should be considered.

关键词： Pneumatosis intestinalis Intussusception Urgent surgery Immunosuppressive drug Ischemia of the intestine

SPERA Hydrogen System^(TM)by LOHC-MCH Method for Massive Hydrogen Storage and Transportation

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 Environmental Science and Engineering(A) 2024年第2期13卷 50-60页

作者： Yoshimi Okada Kaji Naohiro Osamu Ikeda Kenichi Imagawa hironori Kawai Masashi Nagai Yasuhiro Inoue Frontier Business Division Chiyoda Corporation4-6-2 Minatomirai Nishi-kuYokohama 2208765Japan Hydrogen Business Department Chiyoda Corporation4-6-2 Minatomirai Nishi-kuYokohama 2208765Japan R&D Center Chiyoda Corporation3-13 Moriya-cho Kanagawa-kuYokohama 2208765Japan Technology Development Department Chiyoda Corporation4-6-2 Minatomirai Nishi-kuYokohama 2208765Japan

Expanding the hydrogen energy utilization is essential for decarbonization,and the commercialization of hydrogen energy carrier systems that can“store”and“transport”hydrogen in a large scale is *** organic chemical hydride method incorporates hydrogen atoms into the molecular structure of a LOHC(Liquid Organic Hydrogen Carrier)to store and transport hydrogen in a liquid state under normal temperature and pressure,and is a highly safe method with low business *** has been developing the technology since 2002,completed a pilot demonstration in 2014 and named it the SPERA Hydrogen^(TM) System,and successfully completed an international supply chain demonstration that transports hydrogen from Brunei to Japan in a large scale in 2020,moving to the commercialization ***,Chiyoda is conducting feasibility studies with a number of domestic and foreign companies with the aim of commercializing the system as soon as *** this paper,outline,features,development status and our efforts in commercialization of SPERA HydrogenTM System are introduced.

关键词： Hydrogen carrier LOHC Methylcyclohexane MCH toluene

混流式水轮机进动过程中上冠间隙内流场特性分析

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

水电能源科学 2010年第5期28卷 112-116页

作者：宋兵伟马震岳堀口祐憲辻本良信大连理工大学建设工程学部水利工程学院辽宁大连116024 大阪大学基础工学研究科

通过模型试验与数值模拟相结合的方法研究了混流式水轮机进动过程中上冠间隙内的流场特性。模型试验中通过改变径向间隙入口处的预旋速度,分析了预旋速度对间隙内部定常压力的影响,测定了在不同进动速率比条件下间隙内的非定常脉动压力... 详细信息

通过模型试验与数值模拟相结合的方法研究了混流式水轮机进动过程中上冠间隙内的流场特性。模型试验中通过改变径向间隙入口处的预旋速度,分析了预旋速度对间隙内部定常压力的影响,测定了在不同进动速率比条件下间隙内的非定常脉动压力分布。采用Fortran语言编译实现了基于整体流动模型的数值模拟分析,通过对试验和数值模拟得到的定常和非定常压力结果的比较,获得了整体流动模型能定性模拟转轮进动过程中上冠间隙内的流场特性,通过分析不同进动速率比下非定常压力幅值和幅角分布曲线,提出了自激幅角的概念,并检验分析了预旋速度对非定常压力和非定常速度分布的影响。研究结果可为解决实际工程中水轮机组由间隙密封内不均匀流场产生的流体力矩所导致的自激振动提供理论依据和技术支持。

关键词：混流式水轮机转轮上冠间隙模型试验整体流动模型定常和非定常压力定常与非定常速度

The Coincidence of Critical Day Length Recognition for Florigen Gene Expression and Floral Transition under Long-Day Conditions in Rice

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2013年第3期6卷 635-649页

作者： hironori Itoh Takeshi Izawa National Institute of Agrobiological Sciences Functional Plant Research Unit 2-1-2 Kannondai Tsukuba 305-8602 Japan

The photoperiodic control of flowering time is essential for the adaptation of plants to variable environments and for successful reproduction. The identification of genes encoding florigens, which had been elusive but were supposedly synthesized in leaves and then transmitted to shoot apices to induce floral transitions, has greatly advanced our understanding of the photoperiodic regulation of flowering. Studies on the photoperiodism of Arabidopsis, a model long-day plant, revealed the molecular mechanisms regulating the expression of the Arabidopsis florigen gene FT, which is gradually induced in response to increase in day length. By contrast, in rice, a model short-day plant, the expression of the florigen gene Hd3a （an FTortholog in rice） is regulated in an on/off fashion, with strong induction under short-day conditions and repression under long-day conditions. This critical day length dependence of Hd3a expression enables rice to recognize a slight change in the photoperiod as a trigger to initiate floral induction. Rice possesses a second florigen gene, RFT1, which can be expressed to induce floral transition under non-inductive long-day conditions. The complex transcriptional regulation of florigen genes and the resulting precise control over flowering time provides rice with the adaptability required for a crop species of increasing global importance.

关键词： florigen photoperiodic flowering critical day length recognition gating mechanism rice breeding.

An Analytical Expression of Magic Angle Spinning Nuclear Magnetic Resonance Free Induction Decay in Two-Site Exchange Problem

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics Letters 1998年第6期15卷 453-454页

作者： SHEN Yi-min KAJI hironori HORII Fumitaka Analytical Center Fudan UniversityShanghai 200433 Institute for Chemical Research Kyoto UniversityUjiKyoto 611Japan

An analytical expression of free induction decay has been derived for calculating the magic angle spinning sideband patterns of nuclear magnetic resonance spectra in a two-site exchange *** expression has been confirmed by comparing the calculated spinning sideband patterns for powdered crystalline dimethyl sulfone at different exchange rates with experimentally measured spectra at various temperatures.

关键词： exchange spectra crystalline

Placenta Previa Accreta and Previous Cesarean Section：Some Clarifications

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Medical Journal 2018年第12期131卷 1504-1505页

作者： Shigeki Matsubara hironori Takahashi Department of Obstetrics and Gynecology Jichi Medical University Tochigi Japan

To the Editor： Placenta accreta （accreta, increta, or percreta） is challenging： effort to reduce its incidence is of paramount importance. We already know well that cesarean section （CS） increases the risk ofacc... 详细信息

关键词： DELIVERY

Thermomemory in shoot apical meristem: Regulation of carbohydrate metabolism and stem cell identity

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2021年第9期14卷 1427-1429页

作者： Miho Ikeda hironori Takasaki Nobutaka Mitsuda Graduate School of Science and Engineering Saitama UniversitySaitama 338-8570Japan Bioproduction Research Institute National Institute of Advanced Industrial Science and Technology(AIST)Central 6Tsukuba 305-8566Japan

Adaptation to the environment is essential for sessile organisms,such as plants,as they cannot move away from adverse *** stress(HS)is one of the most serious environmental stresses in terms of its effect on crop growth and yield,especially in this era of global ***,research on heat re-sponses and acclimation in plants is becoming increasingly *** have evolved complex systems to respond to HS for their *** general,heat shock transcription factors(Hsfs)are involved in the acquisition of thermotolerance.

关键词： metabolism becoming effect

Beyond management to conquer life-threatening tumor thrombosis in hepatocellular carcinoma

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hepatobiliary Surgery and Nutrition 2022年第5期11卷 773-774页

作者： hironori Koga Division of Gastroenterology Department of MedicineKurume University School of MedicineKurumeJapan

Hepatic vein tumor thrombus(HVTT),together with portal vein tumor thrombus(PVTT),is a major determinant of survival outcome in patients with advanced hepatocellular carcinoma(HCC).HVTT can be an oncologic emergency,especially when it invades beyond IVC into the right atrium,where it can cause sudden death from pulmonary *** studies using large numbers of patients are generally difficult in this relatively rare and urgent *** this context,the multicenter study conducted by Chen et *** significant,albeit retrospective(1).

关键词： hepatocellular thrombus al.

Magneto-Optical Properties of Wider Gap Semiconductors ZnMnTe and ZnMnSe Films Prepared by MBE

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 Electronic Science and Technology 2020年第3期18卷 201-211页

作者： Masaaki Imamura Daisuke Tashima Jiro Kitagawa hironori Asada Department of Electrical Engineering Fukuoka Institute of TechnologyFukuoka 811-0295 Graduate School of Sciences and Technology of Innovation Yamaguchi UniversityUbe 755-8611

TheⅡ-Ⅵbased magnetic semiconductors with a direct and wide optical bandgap are expected to show high potential for optical applications utilizing short wavelength laser diodes(LDs),such as 532-nm green and475-nm blue *** have confirmed that the Faraday rotationθ_F in the ZnMnTe and ZnMnSe films deposited on quartz glass(QG)and sapphire(SA)substrates by using molecular beam epitaxy(MBE)is large near the absorption *** paper reports the magneto-optical properties of ZnMnTe and ZnMnSe films synthesized on the QG and SA substrates,and shows the result of a direct Faraday rotation observation successfully made for the ZnMnTe films under 1.28-kHz alternating magnetic *** optical absorption characteristics of the ZnMnTe films grown on the SA substrates by MBE are discussed by comparing them with the optical absorption properties and photoluminescence spectra of theⅡ-ⅥZnTe parent single crystals.

关键词： Magnetic semiconductors magneto-optical effects wide bandgap ZnMnTe and ZnMnSe films