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World Journal of Clinical Cases 2024年第14期12卷 2420-2425页

作者： Shinya Mikami Sae Kimura Yoshitsugu Tsukamoto Masaki Hiwatari Yasuhito Hisatsune Asako Fukuoka Tsunehisa Matsushita Takeharu Enomoto takehito otsubo Department of Gastrointestinal and General Surgery St.Marianna University School of MedicineKanagawa 216-8511Japan

BACKGROUND A Bochdalek hernia(BH)is a congenital diaphragmatic hernia that often develops in the neonatal *** typically occurs on the left side of the diaphragm.A right-sided BH in an adult is *** SUMMARY A 45-year-old man was referred to our hospital because of an abnormal shadow seen on chest radiography during a medical check-up.A chest radiograph showed elevation of the right *** tomography showed prolapse of multiple intraabdominal organs into the right thoracic cavity,corresponding to a right-sided *** herniated contents included the stomach,transverse colon,and left lobe of the *** left lobe of the liver was enlarged,particularly the medial *** surgery was ***,the left lobe of the liver was completely trapped in the thoracic ***,thoracoscopic manipulation had to be performed to return the liver to the abdominal *** hernia was repaired with interrupted nonabsorbable sutures and reinforced with *** Combined laparoscopic and thoracoscopic surgery was successfully performed for right-sided BH with massive liver prolapse and abnormal liver morphology.

关键词： Bochdalek hernia Right-sided Adult Laparoscopic and thoracoscopic repair Liver prolapse Abnormal liver morphology Case report

Need for pancreatic stenting after sphincterotomy in patients with difficult cannulation

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World Journal of Gastroenterology 2014年第26期20卷 8617-8623页

作者： Kazunari Nakahara Chiaki Okuse Keigo Suetani Yosuke Michikawa Shinjiro Kobayashi takehito otsubo Fumio Itoh Department of Gastroenterology and Hepatology St. Marianna University School of Medicine Department of Gastroenterological and General Surgery St. Marianna University School of Medicine

AIM: To investigate the need for pancreatic stenting after endoscopic sphincterotomy (EST) in patients with difficult biliary cannulation.

关键词： Pancreatic stenting Pancreatic guidewire placement Post-endoscopic retrograde cholangiopancreatography pancreatitis Endoscopic sphincterotomy Endoscopic retrograde cholangiopancreatography

Angiodysplasia Presenting with Multiple Polypoid Lesions: An Unusual Cause of Small Bowel Obstruction

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Case Reports in Clinical Medicine 2014年第11期3卷 592-595页

作者： Yoshiharu Takenaka Takahiro Sasaki Nobuyoshi Miyajima takehito otsubo Department of Gastroenterological Surgery St. Marianna University School of Medicine Toyoko Hospital Kanagawa Japan

Angiodysplasia (AD), a morphologic vascular abnormality, is a common cause of gastrointestinal bleeding. We present a rare case of polypoid AD lesions. Three years after treatment for adhesive bowel obstruction, a 57-year-old man was admitted with recurrent abdominal distension, anorexia, and lower extremity edema. Computed tomography showed his dilated proximal and collapsed distal small bowel loops had disparate calibers. The transition point demonstrated mucosal enhancement and mesenteric lymphadenopathy. We observed small intestinal wall outpouching with strong mucosal enhancement and polypoid lesions dotting the dilated intestine. Intraoperative findings revealed a hard but elastic intraluminal nodule causing small bowel obstruction and the outpouching’s occurrence on the ileum’s antimesenteric border. We performed partial resection of the small intestine involving the nodule and Meckel’s diverticulum. Macroscopically, the nodule, diverticulum, and intestinal mucosa had polypoid lesions. Histopathologically, these lesions had foci within dilated thin- or thick-walled vascular channels in the submucosa, without specific histological abnormalities. These features led to a diagnosis of AD.

关键词： Angiodysplasia Polipoid Lesions Small Bowel Obstruction Meckel’s Diverticulum

Enteral metallic stenting by balloon enteroscopy for obstruction of surgically reconstructed intestine

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World Journal of Gastroenterology 2015年第24期21卷 7589-7593页

作者： Kazunari Nakahara Chiaki Okuse Nobuyuki Matsumoto Keigo Suetani Ryo Morita Yosuke Michikawa Shun-ichiro Ozawa Kosuke Hosoya Shinjiro Kobayashi takehito otsubo Fumio Itoh Department of Gastroenterology and Hepatology St. Marianna University School of Medicine Department of Gastroenterogical and General Surgery St. Marianna University School of Medicine

We present three cases of self-expandable metallic stent(SEMS) placement using a balloon enteroscope(BE) and its overtube(OT) for malignant obstruction of surgically reconstructed intestine. A BE is effective for the insertion of an endoscope into the deep bowel. However, SEMS placement is impossible through the working channel, because the working channel of BE is too small and too long for the stent device. Therefore, we used a technique in which the BE is inserted as far as the stenotic area; thereafter, the BE is removed, leaving only the OT, and then the stent is placed by inserting the stent device through the OT. In the present three cases, a modification of this technique resulted in the successful placement of the SEMS for obstruction of surgically reconstructed intestine, and the procedures were performed without serious complications. We consider that the present procedure is extremely effective as a palliative treatment for distal bowel stenosis, such as in the surgically reconstructed intestine.

关键词： Enteral stent Gastrointestinal obstruction Balloon enteroscopy Overtube Self-expandable metallicstent

日本肝胆胰外科协会认证体系下外科医师手术安全性的评估

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肝胆外科杂志 2017年第6期25卷 480-480页

作者： takehito otsubo 颜锡洋耿小平

背景评估通过日本肝胆胰外科协会认证体系的外科专家手术安全性。方法分析2012年至2015年期间日本肝胆胰外科协会认证体系医院有关肝胆胰外科手术死亡数据。将肝胆胰外科手术中28种类型手术定义为高水准肝胆胰手术。主刀或第一助手完... 详细信息

背景评估通过日本肝胆胰外科协会认证体系的外科专家手术安全性。方法分析2012年至2015年期间日本肝胆胰外科协会认证体系医院有关肝胆胰外科手术死亡数据。将肝胆胰外科手术中28种类型手术定义为高水准肝胆胰手术。主刀或第一助手完成高水准肝胆胰手术超过100例外科医师方可成为认证教官，每年开展高水准肝胆胰手术超过30例方可成为认证医院，认证专家必须是主刀完成超过50例高水准肝胆胰手术且经认证教官培训。

关键词：肝胆胰外科手术手术安全性外科医师认证协会日本评估肝胆胰手术

基于图像处理技术的轨道车辆底部视觉检测系统

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智慧轨道交通 2024年第2期61卷 98-100页

作者： Akihide Uno takehito Fujii Hiroyuki Nakajima [日]Masanori Endo 林凯(译) 王慧(译) 宋微(译) 吕俊超(译) 不详

利用图像处理技术,本文开发了一种用于机车车辆故障检测的系统。该系统能够自动检测诸如底部设备紧固螺栓松动或设备箱盖手柄转动等故障,如有必要,检验人员可以根据该系统显示的图像对机车车辆进行具体检查。目前系统已经具备了车辆底... 详细信息

利用图像处理技术,本文开发了一种用于机车车辆故障检测的系统。该系统能够自动检测诸如底部设备紧固螺栓松动或设备箱盖手柄转动等故障,如有必要,检验人员可以根据该系统显示的图像对机车车辆进行具体检查。目前系统已经具备了车辆底部设备侧面检测功能,我们正致力于将该系统应用于车辆底部设备中间区域及车顶设备的检测。本文对该系统及其用户界面进行了概述。

关键词：机车车辆底部设备检查图像处理线路摄像头

Eddy Current Analyses by Domain Decomposition Method Using Double-Double Precision

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Computer Modeling in Engineering & Sciences 2018年第9期116卷 349-363页

作者： Mizuma takehito Takei Amane University of Miyazaki 1-1Gakuen Kibanadai-nishiMiyazaki-shiMiyazakiJapan

A matrix equation solved in an eddy current analysis,??-??method based on a domain decomposition method becomes a complex symmetric *** general,iterative method is used as the *** of iterative method in an interface problem is improved by increasing an accuracy of a solution of an iterative method of a subdomain ***,it is difficult to improve the convergence by using a small convergence criterion in the subdomain ***,authors propose a method to introduce double-double precision into the interface problem and the subdomain *** proposed method improves the convergence of the interface *** this paper,first,we describe proposed ***,we confirm validity of the method by using Team Workshop Problem 7,standard model for eddy current ***,we show effectiveness of the method from two numerical results.

关键词： Double-double precision domain decomposition method eddy current analysis parallel finite element method

Up-grading of natural ilmenite ore by combining oxidation and acid leaching

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International Journal of Minerals,Metallurgy and Materials 2018年第7期25卷 729-736页

作者： takehito Hiraki Yuichi Maruyama Yuta Suzuki Satoshi Iloh Tetsuya Nagasaka Department of Metallurgy Graduate School of EngineeringTohoku UniversitySendai 980-8579Japan Toho Titanium Co. Ltd.Kanagawa 253-8510Japan Fanuc Co. Ltd.Oshino-muraYamanashi 401-0511Japan Before retirement:Graduate School of Environmental Studies Tohoku UniversitySendai 980-8579Japan

Rutile （TiO2） is heavily used in pigments mid colormlts, mid the most abundmlt source of rutile is ilmeinte. Upon oxidation of ilmeinte, mtile cml be formed wiffl modest energy consumption; furfflermore, after leaching, only a few byproducts are formed. Unfortunate- ly, one drawback is file necessarily long oxidative process of typically used mefflods. In fflis study, we show fflat a fluidized bed reactor cml be used to oxidize ilmeinte ore to rapidly form ruffle mid pseudobrookite （Fe2TiOs） phases. Ilmeinte was oxidized wiffl 5vo1% 02 in Ar at temperatures of 1173 K or 1223 K mid subsequently leached using a diluted H2SO4 solution to dissolve file pseudobrookite phase. The effects of acid concentration, temperature, mid cooling rate after oxidation were investigated. We show fflat file ilmeinte was rapidly oxidized to form rutile mid pseudobrookite phases at 1173 mid 1223 K in a 5vo1% O2/95vo1% Ar environment wifflin 40 min. The fmal maximum mtile yield was 84.2mo1% after leaching in （1 ＋ 1） H2SO4 solution at 393 K for 12 h.

关键词： ilmenite oxidation fluidized bed reactor acid leaching rutile pseudobrookite

Effect of pore water chemistry on anisotropic behavior of clayey soil and possible application in underground construction

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Underground Space 2016年第2期1卷 114-123页

作者： Jinchun Chai takehito Negami Kosuke Aiga Takenori Hino Graduate School of Science and Engineering Saga University1 HonjyoSaga 840-8502Japan Institute of Lowland and Marine Research Saga University1 HonjyoSaga 840-8502Japan

The effect of pore water chemistry on anisotropic behavior of consolidation and shear strength of reconstituted Ariake clay has been investigated *** types of chemicals added into the pore water of the soil for enhancing flocculation microstructure of soil particles are sodium chloride(salt)(NaCl),and calcium chloride(CaCl_(2));and two dispersants added are sodium triphosphate(Na_(5)-P_(3)O_(10))and sodium hexametaphosphate(Na_(6)P_(6)O_(18)),*** concentrations of these chemicals in pore water were 2-3%.Degrees of anisotropy of the coefficient of consolidation and undrained shear strength decreased with adding NaCl and CaCl_(2),but increased with adding the *** of anisotropy also increased with one-dimensional(1D)deformation and the samples with dispersive additives had higher increase *** has been confirmed qualitatively by scanning electron microscopy(SEM)images that adding dispersive chemicals promoted the formation of dispersive microstructure and increased the degree of anisotropy,and the chemicals enhancing flocculent microstructure had an inverse *** possible application of the findings to underground construction has been discussed also.

关键词： Anisotropy Pore water chemistry Clay Consolidation Shear strength SEM image Underground construction

Remolded Undrained Strength of Soils

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海洋工程：英文版 2003年第1期17卷 133-142页

作者：洪振舜刘汉龙 NEGAMI takehito Institute of Geotechnical Engineering Southeast University Geotechnical Institute Hohai University Department of Civil Engineering Saga University

Extensive data of undrained shear strength for various remolded soils are compiled to normalize the remolded undrained strength. Remolded soils have a wide spectrum of liquid limits ranging from 25% to 412%. It is found that the remolded undrained strength is a function of water content and liquid limit. Furthermore, a simple index designated as normalized water content w * is introduced for normalizing remolded undrained strength for various soils. The normalized water content w * is the ratio of water content to liquid limit. The relationship between the remolded undrained strength and the normalized water content can be expressed by a simple equation. The new simple equation is not only valuable theoretically for helping in assessing the in situ mechanical behavior, but also useful to ocean engineering practice.

关键词： critical state line liquid limit normalized water content remolded undrained strength water content