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Toward a Platinum Society:Challenges for Engineering Science

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Engineering 2015年第1期1卷 18-20页

作者： hiroshi komiyama the Engineering Academy of Japan

The 21st century will be a turning point in the history of ***,it is my strong belief that engineering science will also be compelled to undergo a major historical ***,humankind is at a pivotal period of historic importance,similar to the time of the Industrial *** is especially true for people living in developed countries who enjoy

关键词：工程科学社会白金人类历史生活品质工业革命国家发展

The Harmonious Development of Civilizations and the Role of Universities

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The Harmonious Development of Civilizations and the Role of ...

文明的和谐与共同繁荣：文明的普遍价值和发展趋向——北京论坛（2008）

作者： hiroshi komiyama the University of Tokyo

It is a great honor and a pleasure to be given an opportunity to address distinguished participants at the Beijing Forum 2008,held here,the historical venue of the Diaoyutai State Guest House.I also would like to extend my gratitude to the people at Peking University,who have worked hard to organize and prepare for this event.

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浑善达克沙地牧户经营与草地变化的实证分析

干旱区资源与环境 2008年第5期22卷 192-196页

作者：杜富林根锁小宫山博鬼木俊次内蒙古农业大学经济管理学院呼和浩特010019 日本国际农林水产业研究中心筑波3058686

本文以浑善达克沙地牧户调查数据为基础,在草地畜牧业可持续发展理论指导下,通过对牧户经营现状以及草地变化状况的实证分析,明确了牧户经营基本特点、经营收入支出构成与草地资源变化特征,并提出调整畜种结构,适当增加牛的饲养比重;科... 详细信息

本文以浑善达克沙地牧户调查数据为基础,在草地畜牧业可持续发展理论指导下,通过对牧户经营现状以及草地变化状况的实证分析,明确了牧户经营基本特点、经营收入支出构成与草地资源变化特征,并提出调整畜种结构,适当增加牛的饲养比重;科学管理,提高牲畜出栏率;加强牲畜改良,提高良种比率;完善草畜平衡制度,加强监督、执法力度等对策。

关键词：牧户经营草地变化实证分析浑善达克沙地

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日本作为“问题先进国”的作用

新建筑 2010年第6期 6-11页

作者：小宫山宏刘雪雁(译) 日本三菱综合研究所不详

"有限的地球、老龄化社会、知识爆炸"是21世纪的范式,日本已经先于其他国家经历了这些情况。在日本的能源消费中,家庭、办公室、运输等"日常生活"占了55%,原材料、汽车、家电等"物质制造"占了45%。我们应该在削减余地较大的"日常生活"... 详细信息

"有限的地球、老龄化社会、知识爆炸"是21世纪的范式,日本已经先于其他国家经历了这些情况。在日本的能源消费中,家庭、办公室、运输等"日常生活"占了55%,原材料、汽车、家电等"物质制造"占了45%。我们应该在削减余地较大的"日常生活"领域中大幅度减排CO_2,创造出善待环境、对应老龄化的更为舒适的城市。这就是日本作为"问题先进国"的作用。

关键词：环境问题老龄化能源回收再利用城市建设

Effect of Disc Position for Acute Closed Lock of the Temporomandibular Joint

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Open Journal of Stomatology 2021年第8期11卷 297-310页

作者： Takashi Uchida Takashi Iida Osamu komiyama hiroshi Yamamoto Kayo Kuyama Orofacial and Head Pain Clinic Nihon University Hospital at Matsudo Chiba Japan Department of Oral Diagnostics Nihon University School of Dentistry at Matsudo Chiba Japan Department of Oral Function and Fixed Prosthodontics Nihon University School of Dentistry at Matsudo Chiba Japan Department of Oral Surgery Nihon University School of Dentistry at Matsudo Chiba Japan Department of Pathology Nihon University School of Dentistry at Matsudo Chiba Japan

In this manuscript, the authors have studied the Disc Displacement (DD) status of patients with acute Closed Lock (CL) to determine differences between DD with Reduction (DDwR) and DD without Reduction (DDwoR). Among the acute CL patients who visited our hospital within 2 weeks of the onset of CL, we studied 10 patients whose CL was released (DDwR) and 13 patients whose CL was not released (DDwoR). The DDwoR group was significantly older than the DDwR group. Although the mouth opening distance was significantly greater in the DDwoR group than in the DDwR group, the two groups were identical in the duration of CL. Sagittal MRI images showed no significant differences between the two groups in disc length and disc thickness (anterior band, intermediate zone, and posterior band). Multisection sagittal and coronal images identified lateral DD in 7 of the 10 patients in the DDwR group, although no specific direction of the DD was observed in the DDwoR group. Furthermore, deformation of the medial disc was common in the DDwoR group but uncommon in the DDwR group.

关键词： Temporomandibular Joint Disorder Anterior Disc Displacement without Reduction Closed Lock Multisection MRI

新型高效率发电技术─燃料电池的发展现状和开发动向

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电工电能新技术 2000年第2期19卷 35-40页

作者：阿布里提.阿布都拉小宫山宏日本国通产省工业技术研究院机械技术研究所能源部能源利用技术研究室

环境和能源问题要求改善现有发电技术。燃料电池具有效率高,污染低等优点,被认为是未来理想的发电装置,为此,其研究开发已有了很大的进展,并且已开始在一些特殊场合使用。然而,燃料电池还存在材料、制造技术、成本等种种课题。

关键词：燃料电池发电技术动向

Audio-Visual Biofeedback for Respiratory Motion Management: Comparison of the Reproducibility of Breath-Holding between Visual and Audio Guidance

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Journal of Modern Physics 2018年第13期9卷 2286-2294页

作者： Naoki Sano Masahide Saito hiroshi Onishi Kengo Kuriyama Takafumi komiyama Kan Marino Shinichi Aoki Masayuki Araya Department of Radiology University of Yamanashi Yamanashi Japan

Purpose: To compare the reproducibility of breath-holding and comfort between two biofeedback guidance methods (audio and visual) in a respiratory monitoring system. Method and Materials: An audio-feedback respiratory monitoring device, which was modified from a visual-feedback self-respiration monitoring system (Abches, APEX Medical Inc., Tokyo, Japan) previously developed by the authors’ group, was constructed. Twenty patients (13 men, 7 women;mean age, 68.5 years;range, 54 - 85 years) with tumors in the thorax or abdominal region were enrolled in the present study. Computed tomography images were acquired from all patients three times using the two (i.e., audio and visual) respiration monitoring devices. To evaluate the reproducibility of breath-holding, the distance between an anatomical landmark and the tumor position was measured. Furthermore, patients were asked which guidance method they preferred (visual or audio) for comfortable breath-holding. Results: The two guidance methods improved the reproducibility of breath-holding compared with free-breathing, and no significant overall differences between two methods were observed (the mean displacements of the landmark-tumor distance were 2.60 ±1.38 mm and 2.35 ±1.63 mm, for visual and audio guidance, respectively). In five patients, the magnitude of position displacement in the series of three computed tomography images under audio guidance was twice as large as the other under visual guidance. Audio guidance was preferred to visual guidance by 65% (13 of 20) of the patients. However, the reproducibility of breath-holding did not always correspond with patient preference. Conclusion: There were some individual differences in the reproducibility of the visual and audio guidance methods. More appropriate, individualized guidance methods for each patient would improve the reproducibility of breath-holding in respiratory motion management.

关键词： Respiratory Motion Management

Evaluation of Deformable Image Registration and Dose Accumulation Using Histogram Matching Algorithm between kVCT and MVCT with Helical Tomotherapy

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Journal of Modern Physics 2018年第13期9卷 2274-2285页

作者： Masahide Saito Yuki Shibata Naoki Sano Kengo Kuriyama Takafumi komiyama Kan Marino Shinichi Aoki hiroshi Onishi Department of Radiology University of Yamanashi Yamanashi Japan

Purpose: To evaluate the accuracy of deformable image registration (DIR) between the planning kVCT (pCT) and the daily MVCT combined with the histogram matching (HM) algorithm, and evaluate the deformable dose accumulation using a suggested method for adaptive radiotherapy with Helical Tomotharapy (HT). Methods: For five prostate cancer patients (76 Gy/38 Fr) treated with HT in our institution, seven MVCT series (a total of 35 series) acquired weekly were investigated. First, to minimize the effect of different HU values between pCT and MVCT, this image-processing method adjusts HU values between pCT and MVCT images by using image cumulative histograms of HU values, generating an HM-MVCT. Then, the DIR of the pCT to the HM-MVCT was performed, generating a deformed pCT. Finally, deformable dose accumulation was performed toward the pCT image. Results: The accuracy of DIR was significantly improved by using the HM algorithm, compared with non-HM method for several structures (p ±0.05, 0.83 ±0.06, and 0.90 ± 0.04 for the CTV, rectum, and bladder, respectively, while that of the HM method was 0.81 ±0.06, 0.81 ±0.04, and 0.92 ±0.06, respectively. For the deformable dose accumulation, some difference was observed between the two methods, particularly for the small calculated regions, such as rectum V60 and V70. Conclusion: Adapting the HM method can improve the accuracy of DIR. Furthermore, dose calculation using the deformed pCT using HM methods can be an effective tool for adaptive radiotherapy.

关键词： Radiotherapy Tomotherapy MVCT Histogram-Matching Deformable Image Registration