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Impact of postoperative sexual function on health-related quality of life after robot-assisted radical prostatectomy

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Current Urology 2024年第2期18卷 148-154页

作者： Yuya Iwahashi Ryusuke Deguchi Satoshi Muraoka Takahito Wakamiya shimpei Yamashita Kazuro Kikkawa Yasuo Kohjimoto Isao Hara Department of Urology Wakayama Medical UniversityWakayamaJapan

Background:We investigated potential disparities in health-related quality of life,particularly concerning urinary function,between patients with preserved and those with impaired sexual function after robot-assisted radical prostatectomy(RARP).Materials and methods:BetweenDecember 2012 and April 2020,704men underwent RARP in our *** study included 155 patients with a preoperative 5-item International Index of Erectile Function(IIEF-5)of≥12 points and an assessable IIEF-5 at 12 months ***-related quality of life was assessed using the 8-item Short-Form Health Survey and Expanded Prostate Cancer Index Composite(EPIC)preoperatively and at 3,6,and 12months postoperatively.A logistic regression analysis andWilcoxon rank sum tests were ***:Patients were grouped according to the median IIEF-5 score 12 months after surgery:those with preserved sexual function(n=71)and those with impaired sexual function(n=84).The mental component summary of the 8-item Short-Form Health Survey was better in the group with preserved sexual function at 6 months postoperatively than in the group with impaired sexual function(p<0.01).In the EPIC,the group with preserved sexual function performed better not only in the sexual domain but also in the urinary domain at all time points comparedwith the groupwith impaired sexual function(p<0.01).In the comparison of the urinary subdomains of the EPIC,there were no significant differences in urinary function or incontinence,but there were significant differences in urinary distress and irritative/obstructive scores(p<0.01).Conclusions:Patients with preserved postoperative sexual function after RARP showed better urinary function than those with impaired sexual ***,preserved sexual function is closely associated with urinary function.

关键词： Prostatectomy Robot-assisted radical prostatectomy Health-related quality of life Sexual function Urinary function

Investigation of Surge Behavior in a Micro Centrifugal Compressor

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Journal of Thermal Science 2006年第2期15卷 97-102页

作者： shimpei MIZUKI Yuichiro ASAGA Yushi ono Hoshio TSUJITA Department of Mechanical Engineering Hosei University 3-7-2Kajino-choKoganei-shiTokyo Mitsubishi Heavy Industries Ltd. 1-1 Akunoura-machi Nagasaki-shi Nagasaki Department of Mechanical Engineering Hosei University 3-7-2 Kajino-cho Koganei-shi Tokyo

This paper reports the experimental and theoretical study of the surge occurred in prototyping an ultra micro centrifugal compressor. As the first step, the 10 times size model of an ultra micro centrifugal compressor having the 40 mm outer diameter was designed and manufactured. The detailed experimental investigations for the transient behavior of surge with several different values of B parameter were carded out. The experimental results during the surge were compared with those obtained by the non-linear lumped parameter theory in order to validate the effectiveness of the theoretical surge model for the micro centrifugal compressor. As a result, the quite different behavior of the surge appeared for the different values of B both in the experiment and in the analysis.

关键词： micro centrifugal compressor surge lumped parameter model

Development of Compressor for Ultra Micro Gas Turbine

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Journal of Thermal Science 2007年第1期16卷 19-27页

作者： shimpei MIZUKI Faculty of Engineering Department of Mechanical EngineeringHosei UniversityJapan

The major problems for the development of an ultra micro gas turbine system were discussed briefly from the stand point of the internal flow and the performance characteristics. Following to these, the development of ultra micro centrifugal compression systems for the ultra micro gas turbine is explained with the design and the manufacturing processes. The measured results of ultra micro centrifugal compressors are shown.

关键词： ultra micro gas turbine ultra micro centrifugal compressor

The Gauss maps of Demoulin surfaces with conformal coordinates

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Science China Mathematics 2021年第7期64卷 1479-1492页

作者： Jun-ichi Inoguchi shimpei Kobayashi Institute of Mathematics University of TsukubaTsukuba 305-8571Japan Department of Mathematics Hokkaido UniversitySapporo 060-0810Japan

Demoulin surfaces in the real projective 3-space are investigated. Our result enables us to establish a generalized Weierstrass type representation for definite Demoulin surfaces by virtue of primitive maps into a cer... 详细信息

关键词： Demoulin surface Wilczynski frame Gauss map

Monomorphic epitheliotropic intestinal T-cell lymphoma presenting as melena with long-term survival: A case report and review of literature

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World Journal of Gastroenterology 2021年第38期27卷 6501-6510页

作者： Sotaro Ozaka Kunimitsu Inoue Tomoya Okajima Takako Tasaki shimpei Ariki Hideki ono Takeaki Ando Tsutomu Daa Kazunari Murakami Department of Gastroenterology Faculty of MedicineOita UniversityOita 879-5593Japan Department of Gastroenterology Almeida Memorial HospitalOita 870-1195Japan Department of Hematology Almeida Memorial HospitalOita 870-1195Japan Department of Diagnostic Pathology Oita UniversityOita 879-5593Japan

BACKGROUND Monomorphic epitheliotropic intestinal T-cell lymphoma(MEITL)is a rare primary intestinal T-cell lymphoma,previously known as enteropathy-associated T-cell lymphoma type *** is an aggressive T-cell lymphoma with a poor prognosis and high mortality *** known major complications of MEITL are intestinal perforation and ***,we present a case of MEITL that was diagnosed following upper gastrointestinal bleeding from an ulcerative duodenal lesion,with recurrence-free survival for 5 *** SUMMARY A 68-year-old female was admitted to our hospital with melena and mild *** urgent esophagogastroduodenoscopy(EGD)revealed bleeding from an ulcerative lesion in the transverse part of the duodenum,for which hemostatic treatment was *** was diagnosed following repeated biopsies of the lesion,and cyclophosphamide,doxorubicin,vincristine,and prednisone(CHOP)chemotherapy was *** achieved complete remission after eight full cycles of CHOP *** the last follow-up examination,EGD revealed a scarred ulcer and 18Fluorodeoxyglucose(18FDG)positron emission tomography/computed tomography showed no abnormal FDG *** patient has been in complete remission for 68 mo after initial *** To rule out MEITL,it is important to carefully perform histological examination when bleeding from a duodenal ulcer is observed.

关键词： Monomorphic epitheliotropic intestinal T-cell lymphoma Enteropathyassociated T-cell lymphoma type II Gastrointestinal bleeding Intestinal lymphoma Duodenal ulcer Case report

Surge Control of a Centrifugal Compression System by Using a Bouncing Ball

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Journal of Thermal Science 2008年第2期17卷 141-146页

作者： Yuichiro Asaga shimpei Mizuki Hoshio Tsujita Shinsuke Ohta Department of Mechanical Engineering Faculty of EngineeringHosei University Mitsubishi Heavy Industries Ltd.

The purpose of this study is to suppress the fluctuations of surge by a simple passive control method. A bouncing ball system with different weight of the balls was tested. As a result, the bouncing ball system suppressed mild surge without the deterioration of the performance characteristics, and moved the initiation point of surge toward the lower flow rate when the steel ball of 15mm outer diameter was used. The present system was effective to suppress the surge and to widen the stable operating range of a centrifugal compressor when the ball was chosen appropriately.

关键词： centrifugal compressor surge passive control bouncing ball

加强灌注的枕-颈-胸穿支皮瓣在下面部和颈部重建术中的应用

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中国美容整形外科杂志 2013年第5期24卷 I0018-I0018页

作者： shimpei ono Kevin C. Chung Yoshihiro Takami Takafumi Chin Rei Ogawa Jian-Hua Gao Hiko Hyakusoku 朱利娜(译) 魏峰(译) 高景恒(译) 日本医科大学整形再造和美容外科日本东京密歇根大学卫生系统外科部整形外科美国密歇根州安阿伯市南方医科大学整形再造外科中国广州《中国美容整形外科杂志》编辑部

背景与目的枕一颈．胸皮瓣在枕叶区有局部的皮肤蒂，皮瓣远端在胸肌区。枕．颈一胸皮瓣的一个缺点是皮瓣长度有限。为克服这一不足，可以使用加强灌注穿支的手法来扩大皮瓣的长度。本研究的目的是介绍加强灌注穿支的枕．颈．胸皮瓣在面... 详细信息

背景与目的枕一颈．胸皮瓣在枕叶区有局部的皮肤蒂，皮瓣远端在胸肌区。枕．颈一胸皮瓣的一个缺点是皮瓣长度有限。为克服这一不足，可以使用加强灌注穿支的手法来扩大皮瓣的长度。本研究的目的是介绍加强灌注穿支的枕．颈．胸皮瓣在面颈部重建术中的应用，并讨论加强灌注穿支的手法和穿支解剖学。方法回顾分析所有面颈部重建术中使用的加强灌注穿支的枕．颈一胸皮瓣。结果所有9例患者中，第二乳内动脉穿支与枕一颈．胸皮瓣尾部连接，对对侧面动脉受体血管加强灌注。皮瓣的平均大小为22．6cm×6．2cm，无任何皮瓣损失。利用薄且柔韧的局部皮肤组织覆盖延伸至对侧较大范围的缺损是可行的。所有患者术后6个月对功能和美观均满意。结论内乳动脉加强灌注穿支的枕。颈．胸皮瓣可当做双蒂穿支皮瓣的一种类型，且可提供可靠的皮瓣血供。通过使用加强灌注穿支的手法，我们可以根据缺损的形状调整并扩大皮瓣的长度。（循证医学证据等级：Ⅳ级，疗法）

关键词：穿支皮瓣重建术面颈部灌注胸肌应用面部皮肤组织

Numerical Investigation of Loss Generation Mechanisms of Flow in Turbomachinery by Using Curved Square Duct

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Journal of Thermal Science 2003年第3期12卷 219-224页

作者： Hoshio Tsujita shimpei Mizuki Gaku Minorikawa Atsumasa Yamamoto Department of Mechhanical Engineering Hosei University3-7-2 Kajino-choKoganeiTokyoJapanDepartment of Mechhanical EngineeringHosei University3-7-2 Kajino-choKoganeiTokyoJapanDepartment of Mechhanical EngineeringHosei University3-7-2 Kajino-choKoganeiTokyoJapanNational Aerospace Laboratory 7-44-1 Jindaiji-higashi-machi Chofu Tokyo Japan

The secondary flow within a passage of turbomachinery exhibits a complex flow pattern by the effect of the centrifugal and the Coriolis forces. The passage vortex in this secondary flow generates a major part of the losses. However, the mechanism of the loss generation has not been fully clarified yet. In this point of view, the passage vortex is closely examined by the computational method using the two-dimensional curved square ducts as fundamental models. The inlet boundary layer thickness and the inlet velocity distortion are considered to be the major parameters affecting the generation of passage vortex in the present study. The computed results revealed that the passage vortex gave the predominant effects for the generation of loss not only in the breakdown process but also in the development process.

关键词： curved duct turbomachinery secondary flow passage vortex loss generation

Design and Prototyping of Micro Centrifugal Compressor for Ultra Micro Gas Turbine

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Journal of Thermal Science 2005年第4期14卷 308-313页

作者： shimpei MIZUKI Toshiyuki HIRANO Yoshiyuki KOIZUMI Gaku MINORIKAWA Hoshio TSUJITA Mitsuo IWAHARA Ronglei GU Yutaka OHTA Eisuke OUTA Department of Mechanical Engineering Hosei University Japan Graduate School of Engineering Mechanical Engineering Hosei University 7-2 Kajinocho 3 chomeKoganei-shi Tokyo 184-8584 Japan Department of Mechanical Engineering Waseda University

In order to establish the design methodology of an ultra micro centrifugal compressor, which is the most important component of an ultra micro gas turbine unit, a 10 times size of the final target compressor （impeller outer diameter 40 mm, corrected rotational speed 220,000 r/min） was designed. The problems to be solved for downsizing were examined and a 2-dimensional impeller was chosen as the first model due to its productivity. The conventional 1D prediction method and CFD were used. The prototyped compressor was tested by using cold air at the reduced speed of 110,000 r/min. Following to the 10 times model, a 5 times size of the final target model having fully 3-dimensional shape （impeller outer diameter 20mm, corrected rotational speed 500,000 r/min） was designed and tested by using hot gas at the reduced speed of 250,000 r/min.

关键词： centrifugal compressor performance characteristics 3-dimensional impeller.