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Evaluation method of dam behavior during construction and reservoir filling and application to real dams

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Frontiers of Structural and Civil Engineering 2010年第1期4卷 92-101页

作者： Yuji KOHGO akira takahashi Tomokazu SUZUKI Tokyo University of Agriculture and Technology TokyoJapan Tokyo Electric Power Company Limited TokyoJapan Tokyo Electric Power Services Company Limited TokyoJapan

In this paper we analyzed a real fill-type dam,named the Minami-Aiki Dam,to verify a numerical consolidation method with an elastoplastic model for unsaturated *** validities were conducted by comparing the analyzed and measured values during construction and *** settlements calculated showed good agreement to those *** the changing patterns of the measured and calculated pore water pressures were similar,the amounts of pore water pressures induced by the self-weights of embankment and the dissipation speeds were *** earth pressures measured at the bottom of the core zone showed good agreement with those *** method is valid for estimating behavior of fill-type dams during construction and impounding.

关键词： fill dam consolidation analysis unsaturated geo-materials impounding construction

The Antenna Element,Phase Shifter,and Amplifier for Wide-band Systems

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The Antenna Element,Phase Shifter,and Amplifier for Wide-ban...

Characteristics of Sleep and Autonomic Activity in Active Older Adults Based on Metabolic Age: A Comparative Case Study

1998年中日联合微波技术会议

作者： Hirokazu KOBAYASHI Yasuyuki TOKUMITSU akira takahashi Fujitsu System Integration Laboratories 4-1-1 KamiodanakaNakaharaKawasaki 211-8588Japan

＜正＞This paper presents microwave devices,a antenna element,phase shifter,and amplifier for wideband active phased array antenna,say,"APAA" which consists of low-level power amplifiers distributed over array antenna ***,an ordinary array antenna is by high level microwave power amplifiers made up of electron tubes（typically TWTs） arranged in a distributed *** APAA is provided with high redundancy against element failures because of its all solid-state system while still exhibiting the features of phased array antennas.

关键词： Wide - band Element Antenna Wide—band Phase Shifter Cascadable Amplifier

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Open Journal of Psychiatry 2023年第4期13卷 229-245页

作者： Miki Sato Ryuichi Tanioka Feni Betriana Kyoko Osaka Yueren Zhao Tetsuya Tanioka akira takahashi Department of Clinical Nursing Kochi Medical School Kochi University Kochi Japan Faculty of Health Sciences Department of Rehabilitation Hiroshima Cosmopolitan University Hiroshima Japan Faculty of Nursing Prince of Songkla University Hat Yai Thailand Department of Psychiatry Fujita Health University Aichi Japan Institute of Biomedical Sciences Graduate School Tokushima University Tokushima Japan

Background: The balance of autonomic nervous system activity and its relationship with body composition, sleep quality, and activities of daily living among older people is still unclear. Purpose: This comparative case study examined the characteristics of body composition, sleep quality, and autonomic nerve activity in active older adults with a younger body age-calculated from age trends in body composition and basal metabolic rate. Methods: We selected two cases with a metabolic age younger than their actual age. They had good sleep quality, no sarcopenia, strong muscle and grip strength, and balanced autonomic nervous system activity. They were compared with two other age- and gender-matched cases, who had poor sleep quality, unbalanced autonomic nervous system activity, and had a physical age closer to their actual age. Results: Older adults with more muscle mass and higher basal metabolism were younger than their actual age, had a better sleep status, and had a good balance of autonomic nervous activity during exercise stimulation. They also had lower percentages of body and visceral fat and higher percentages of body water. Conclusion: Two cases had a metabolic age younger than their actual age were found to be much younger than their actual age. However, the older adults with normal muscle mass and basal metabolic rate had poor sleep status and no sympathetic hyperactivity during exercise simulation.

关键词： Healthy Aging Autonomic Nervous Activities Heart Rate Variability Sleep Status Well-Being

一种新型桥梁结构——镂空蝴蝶形腹板桥梁的设计和施工

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中外公路 2017年第3期37卷 149-151页

作者：黄睿奕 Yuki KAMINAGA Kenichiro ASHIZUKA akira takahashi 长大桥梁建设施工技术交通行业重点实验室湖北武汉430042 中交第二航务工程局技术中心

该文介绍了日本的一座新型桥梁结构,镂空混凝土腹板桥梁,又叫蝴蝶形腹板梁桥。这种桥梁结构形式采用工厂化预制的蝴蝶形腹板。与传统混凝土箱形梁桥相比,这种新型结构梁桥的恒载自重减轻了大约10%,与此同时,预应力钢筋数量和下部结构尺... 详细信息

该文介绍了日本的一座新型桥梁结构,镂空混凝土腹板桥梁,又叫蝴蝶形腹板梁桥。这种桥梁结构形式采用工厂化预制的蝴蝶形腹板。与传统混凝土箱形梁桥相比,这种新型结构梁桥的恒载自重减轻了大约10%,与此同时,预应力钢筋数量和下部结构尺寸也随之减小,大大节约了工程造价。该桥型具有自重轻、可工厂化预制、施工工期短、养护费用低和环保等诸多优点,适用于中小跨径桥梁的设计和施工。

关键词：预制面板钢纤维混凝土设计施工进度

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紫外线A联合异硫氰酸盐杀菌效果评价

中国公共卫生 2022年第7期38卷 884-886页

作者：侯衍飞韩惠芳高桥章刘根义济宁医学院公共卫生学院营养与食品卫生学教研室山东济宁272067 日本德岛大学营养生命科学教育部预防环境营养学分野

目的研究紫外线A发光二极管(UVA-LED)与植物化学物烯丙基异硫氰酸盐(AITC)联合对两种致腹泻病原菌的杀菌效果。方法以肠致病性大肠杆菌和副溶血性弧菌两种致腹泻病原菌为受试对象,采用不同浓度的烯丙基异硫氰酸盐与UVA_(365 nm)-LED结... 详细信息

目的研究紫外线A发光二极管(UVA-LED)与植物化学物烯丙基异硫氰酸盐(AITC)联合对两种致腹泻病原菌的杀菌效果。方法以肠致病性大肠杆菌和副溶血性弧菌两种致腹泻病原菌为受试对象,采用不同浓度的烯丙基异硫氰酸盐与UVA_(365 nm)-LED结合进行二因素3×2析因设计杀菌实验,以菌落形成单位(CFU)计数细菌存活量并计算各自存活率对数值,然后进行析因设计的方差分析,并做交互效应图。结果单独AITC的杀菌效果随着浓度的增高而逐渐增强(P<0.05),而且UVA_(365 nm)-LED与AITC联合对2种致病菌的效应差异都具有统计学意义(P<0.05)。UVA-LED和1 mg/mL AITC联用时副溶血性弧菌的存活率降低至-6.15 lg。结论UVA-LED与烯丙基异硫氰酸盐的联用,对肠致病性大肠杆菌和副溶血弧菌的杀菌效果都存在显著的协同作用。

关键词：紫外线A发光二极管烯丙基异硫氰酸盐协同作用杀菌

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以电解可脱性弹簧圈急诊栓塞破裂动脉瘤

第二军医大学学报 2000年第6期21卷 569-571页

作者：陈左权朱诚白如林张光霁高桥明江面正幸第二军医大学长征医院神经外科上海200003 日本仙台广南病院血管内神经外科

目的 :总结 2 7例以电解可脱性弹簧圈 (GDC)急诊栓塞破裂动脉瘤的体会。方法 :自发性蛛网膜下腔出血患者 2 7例。女 17例 ,男 10例 ,年龄 40～ 85岁。 2 5例在急性 SAH发病 12 h内行 GDC动脉瘤栓塞。动脉瘤的大小为 3～ 2 2 m m。 6例... 详细信息

目的 :总结 2 7例以电解可脱性弹簧圈 (GDC)急诊栓塞破裂动脉瘤的体会。方法 :自发性蛛网膜下腔出血患者 2 7例。女 17例 ,男 10例 ,年龄 40～ 85岁。 2 5例在急性 SAH发病 12 h内行 GDC动脉瘤栓塞。动脉瘤的大小为 3～ 2 2 m m。 6例动脉瘤颈较宽的患者行瘤颈成形术。术后常规给予低分子肝素 7d。 7名患者 GDC栓塞后鞘内给予 t- PA.结果 :动脉瘤栓塞后随访 3个月到 1年 ,无 1例发生再出血。恢复良好 17例 ,中等 5例 ,2例恢复差 ,3例死亡。有 6例发生血管痉挛。结论 :用GDC急诊栓塞为治疗破裂动脉瘤开拓了新途径。

关键词：电解可脱性弹簧蛛网膜下腔出血栓塞破裂动脉瘤

Characteristics of Sleep and Autonomic Activity in Active Older Adults Based on Metabolic Age: A Comparative Case Study

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Prevalence of left ventricular dyssynchrony in patients with heart failure assessed by a novel programmer-cardioGRAF

Open Journal of Psychiatry（精神病学期刊） 2023年第4期

作者： Miki Sato Ryuichi Tanioka Feni Betriana Kyoko Osaka Yueren Zhao Tetsuya Tanioka akira takahashi

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Journal of Geriatric Cardiology 2009年第3期6卷 151-156页

作者： Can-Zhan Zhu Naoto takahashi akira Yamamoto Masahira Ishikawa Naomi Kawaguchi Takahiro Uchida Kazuo Munakata Department of Cardiology 2nd Hospital of Xi ＇an Jiaotong University Xi ＇an China Internal Medicine Radiology Department Nippon Medical School Musashikosugi Hospital

Objectives Left ventricular systolic dyssynchrony is the most important determinant of response to cardiac resynchronization therapy （CRT）, playing a vital role to predict improvement of systolic function or LV reverse remodeling. CardioGRAF is a novel programmer based on the ECG gated single photon emission computed tomography （G-SPECT） imaging to detect LV systolic and diastolic dyssynchrony simultaneously. This study was to investigate the prevalence of systolic and diastolic left ventricular （LV） dyssynchrony in patients with heart failure. Methods We retrospectively studied 69 patients with heart disease, including 31 patients who had symptoms of heart failure （NYHA class Ⅱ-Ⅲ）, and 38 patients who had no symptoms of heart failure. （NYHA class Ⅰ）. G- SPECT data were analyzed by cardiaGRAF, and measurements included the time to end systole （TES）, the time to peak ejection （TPE）, the time to peak filling （TPF）, TES＋TPF and maximal difference （MD） of each parameters were obtained, using the 95th percentile of the control group as a cutoffof 150 ms for MD-TES, 139 ms for MD-TPE, 345 ms for MD-TPF and 315 ms for MD-TES＋TPF. Results The prevalence of LV systolic dyssynchrony was significantly higher in heart failure patients with reduced LV ejection fraction （LVEF）〈45% （72% for MD-TES; 64% for MD-TPE） compared with heart failure patients with preserved LVEF=45% （14% for both MD-TES and MD-TPE; P=0.002, P=0.005, respectively）; The prevalence of MD-TES〈150 ms was higher in NYHA class Ⅲ patients （64%） compared with NYHA class Ilpatients （27%, P=0.049）. However, the prevalence of the LV diastolic dyssynchrony were high but not difference between NYHA class III（47% for both MD-TPF and MD-TES＋TPF） and class Ⅲ（63% for MD-TPF; 69% for MD-TES＋TPF; P=NS） patients as well as between patients with preserved LVEF （43% for both MD-TPF and MD-TES＋TPF） and patients with reduced LVEF（64% for MD-TPF; 72% for MD-TES＋TPF; P=NS）. Conclusions The prevalence of LV systolic dyssynchrony was

关键词： dyssynchrony heart failure cardioGRAF single photon emission computed tomography

Clinical features and prognosis of patients with extrahepatic metastases from hepatocellular carcinoma

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World Journal of Gastroenterology 2007年第3期13卷 414-420页

作者： Kiminori Uka Hiroshi Aikata Shintaro Takaki Hiroo Shirakawa Soo Cheol Jeong Keitaro Yamashina akira Hiramatsu Hideaki Kodama Shoichi takahashi Kazuaki Chayama Department of Medicine and Molecular Science Division of Frontier Medical Science Programs for Biomedical Research Graduate School of Biomedical Sciences Hiroshima University Hiroshima Japan

AIM: To assess the clinical features and prognosis of 151 patients with extrahepatic metastases from primary hepatocellular carcinoma (HCC), and describe the treatment strategy for such patients. METHODS: After the diagnosis of HCC, all 995 consecutive HCC patients were followed up at regular intervals and 151 (15.2%) patients were found to have extrahepatic metastases at the initial diagnosis of primary HCC or developed such tumors during the follow-up period. We assessed their clinical features, prognosis, and treatment strategies. RESULTS: The most frequent site of extrahepatic metastases was the lungs (47%), followed by lymph nodes (45%), bones (37%), and adrenal glands (12%). The cumulative survival rates after the initial diagnosis of extrahepatic metastases at 6, 12, 24, and 36 mo were 44.1%, 21.7%, 14.2%, 7.1%, respectively. The median survival time was 4.9 mo (range, 0-37 mo). Fourteen patients (11%) died of extrahepatic HCC, others died of primary HCC or liver failure. CONCLUSION: The prognosis of HCC patients with extrahepatic metastases is poor. With regard to the cause of death, many patients would die of intrahepatic HCC and few of extrahepatic metastases. Although most of HCC patients with extrahepatic metastases should undergo treatment for the primary HCC mainly, treatment of extrahepatic metastases in selected HCC patients who have good hepatic reserve, intrahepatictumor stage (T0-T2), and are free of portal venous invasion may improve survival.

关键词： Hepatocellular carcinoma Extrahepatic metastases Prognosis Causes of death