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日本中部菲律宾海板块和欧亚板块之间的地震平静边界

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世界地震译丛 1996年第2期27卷 23-32页

作者： M. ishida 吕春来国家地震局地球物理研究所

根据关东-东海地区1980年1月至1993年4月期间的地震资料,描绘出了菲律宾海板块和欧亚板块之间目前地震平静的边界。关东-东海地区的大多数地震,不是发生在上覆板块(欧亚板块)之内,就是发生在俯冲板块(菲律宾海板块)之中,其震源深度不到3... 详细信息

根据关东-东海地区1980年1月至1993年4月期间的地震资料,描绘出了菲律宾海板块和欧亚板块之间目前地震平静的边界。关东-东海地区的大多数地震,不是发生在上覆板块(欧亚板块)之内,就是发生在俯冲板块(菲律宾海板块)之中,其震源深度不到30km。菲律宾海板块和欧亚板块之间的板块边界,具有地震活动性水平非常低的特征;也就是,这里的板块边界本身目前处于地震平静状态,发生的地震都是板内地震,或是发生在板块边界的上方,或是发生在板块边界的下方。在东海地区,上覆的欧亚板块内的地震多数都具有压缩轴为EW走向的走滑断裂的特征,而在俯冲的菲律宾海板块内的地震,其特征是压缩轴为NS走向的走滑断裂。在关东地区,大多数地震的特征,是断裂的压缩轴为NW-SE走向。东海和关东两个地区之间的上述差异,被认为是由于板块组构和/或区域应力条件的不同引起的。考虑到本文以及大地测量资料的结果,在10～30km深度的地震平静板块边界表明,在菲律宾海板块和欧亚板块之间有很强的耦合作用,且与震间时段的应变积累一致。

关键词：菲律宾海板块欧亚板块地震平静边界

用新的喷油率控制泵改进重载柴油机排放和冷起动性能

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车用发动机 1989年第4期 29-36页

作者： A.ishida 王自矞三菱汽车公司

为了研究高喷射压力对发动机性能和排放的影响,制做了一些试验用的高喷射压力直列泵并对其进行了测试。用高喷射压力提高燃油喷注动量可降低炭烟,但喷射压力进一步地增加对再降低炭烟效果不明显。因此在发动机低转速范围内应实现高压... 详细信息

为了研究高喷射压力对发动机性能和排放的影响,制做了一些试验用的高喷射压力直列泵并对其进行了测试。用高喷射压力提高燃油喷注动量可降低炭烟,但喷射压力进一步地增加对再降低炭烟效果不明显。因此在发动机低转速范围内应实现高压喷射压力,然而传统直列泵很难获得高压喷射特性。具有可变预行程机构的喷油率电子控制泵在发动机低速范围时可提供高的喷射压力,而在高速范围时可提前喷油定时。这种泵可改善发动机低速范围的燃油经济性和瞬态联邦试验法(FTP)对重载发动机排放(烟度及颗粒)的要求。这种由线圈直接驱动的泵(带有预行程控制套筒)能使定时提前,即使在冷起动时也不会延迟,因此有效地改善了冷起动性能。

关键词：重载柴油机排放冷起动喷油率泵

Electrochemical Behavior of Stainless Steel under High-Temperature and High-Pressure Methanol Solution Containing Oxygen and Chloride Ions

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材料科学与工程（中英文B版） 2011年第7期1卷 861-870页

作者： Daisuke Shintani Toshio ishida Yoshiaki Matsuo Yosohiro Sugie Kimura Chemical Plant Co. Ltd 2-1-2 Terashima Kuise Amagasaki Hyogo 660-8567 Japan School of Engineering Department of Materials Science and Engineering University of Hyodo 2167 Shosha Himeji Hyogo 671-2280 Japan

Evaluating mucosal healing using colon capsule endoscopy predicts outcome in patients with ulcerative colitis in clinical remission

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World Journal of Clinical Cases 2018年第15期6卷 952-960页

作者： Ryosuke Takano Satoshi Osawa Takahiro Uotani Shinya Tani Natsuki ishida Satoshi Tamura Mihoko Yamade Moriya Iwaizumi Yasushi hamaya Takahisa Furuta Hiroaki Miyajima Ken Sugimoto First Department of Medicine Hamamatsu University School of Medicine Department of Endoscopic and Photodynamic Medicine Hamamatsu University School of Medicine Department of Laboratory Medicine Hamamatsu University School of Medicine Center for Clinical Research Hamamatsu University School of Medicine

AIM To examine whether second generation of colon capsule endoscopy(CCE-2) is acceptable for assessing the severity of mucosal inflammation and evaluating mucosal healing using CCE-2 is able to predict outcome in ulcerative colitis(UC) patients, especially in clinical *** A total of 30 consecutive UC patients in clinical remission were enrolled to undergo CCE-2. Clinical remission was defined as clinical activity index(CAI) ≤ 4 according to Rachmilewitz index. The rate of total colon observation and colon cleansing level were evaluated. Severity of mucosal inflammation in UC was assessed according to the Mayo endoscopic subscore(MES) and Ulcerative Colitis Endoscopic Index of Severity(UCEIS). Relapsefree survival was assessed. Acceptability of CCE-2 was assessed using a questionnaire *** The rate of total colon observation within its battery life was 93.3%. The proportion of "excellent" plus "good" cleansing level was 73.3%. The rate of mucosal healing(MES 0, 1) assessed by CCE-2 was 77.0%. The relapse-free survival rate was significantly higher in MES 0, 1 than in MES 2, 3(P = 0.0435), and in UCEIS 0-3 than in UCEIS 4-8(P = 0.0211), whereas there was no significant difference between CAI 0 and CAI 1-4 groups. A questionnaire survey revealed an overall acceptability of *** CCE-2 is acceptable for assessing the severity of mucosal inflammation in UC patients, especially in clinical remission. Evaluating mucosal healing using CCE-2 was able to predict outcome.

关键词： Colon capsule endoscopy Ulcerative colitis Mucosal healing Mayo endoscopic subscore Ulcerative Colitis Endoscopic Index of Severity

Crayfish Robot That Generates Flow Field to Enhance Chemical Reception

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Journal of Sensor Technology 2012年第4期2卷 185-195页

作者： Mari Ohashi Yoshinori Kagawa Tomomichi Nakatsuka Hiroshi ishida Graduate School of Bio-Applications and Systems Engineering Tokyo University of Agriculture and Technology Tokyo Japan

This paper describes a wheeled underwater robot developed for locating chemical sources autonomously under stagnant flow conditions. In still water, the released chemical stays in the immediate vicinity of the source location. The search for chemical sources under such conditions is extremely laborious since the presence of a chemical source cannot be detected from a distant place. The chemical sensors on the robot show no response unless a chemical substance released from the source arrives at the sensors. Crayfish in search of food are known to actively generate water currents by waving their small appendages with a fan-like shape. It is considered that the generated water currents help their olfactory search. The smell of food is carried to their olfactory organs from the surroundings by the generated flow, and then is perceived. The robot presented in this paper employs arms mimicking the maxillipeds of a crayfish to generate water currents and to draw chemicals to its sensors. By waving the arms vertically, a three-dimensional flow field is generated and water samples are drawn from a wide angular range. The direction of a chemical source can be determined by comparing the responses of four laterally aligned electrochemical sensors. Experimental results show that the flow field generated by the maxilliped arms is more effective in collecting chemical samples onto the sensors than that generated by a pump. The robot equipped with the maxilliped arms can detect the presence of a chemical source even if the source is placed off the trajectory of the robot.

关键词： Active Sensing Underwater Robot Chemical Sensor Crayfish

Association between white opaque substance under magnifying colonoscopy and lipid droplets in colorectal epithelial neoplasms

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World Journal of Gastroenterology 2017年第47期23卷 8367-8375页

作者： Keisuke Kawasaki Makoto Eizuka Shotaro Nakamura Masaki Endo Shunichi Yanai Risaburo Akasaka Yosuke Toya Yasuko Fujita Noriyuki Uesugi Kazuyuki ishida Tamotsu Sugai Takayuki Matsumoto Division of Gastroenterology Department of Internal MedicineIwate Medical University Department of Diagnostic Pathology Iwate Medical University Kaiunbashi Endoscopy Clinic

AIM To examine the association between white opaque substance(WOS) and histologically verified lipiddroplets in colorectal epithelial *** We reviewed colonoscopy records at our institution from 2014 to 2016 and identified cases of endoscopically or surgically resected colorectal epithelial neoplasms observed by magnifying narrow-band imaging(M-NBI) colonoscopy. Immunohistochemistry was used to stain tumors with a monoclonal antibody specific to adipophilin as a marker of lipids. The expression and distribution of adipophilin were compared between WOS-positive and WOS-negative lesions and among tumors classified by histologic type and depth of *** Under M-NBI colonoscopy, 81 lesions were positive for WOS and 48 lesions were negative for WOS. The rate of adipophilin expression was significantly higher in WOS-positive lesions(95.1%) than in WOS-negative lesions(68.7%)(P = 0.0001). The incidence of deep adipophilin expression was higher in WOS-positive lesions(24.7%) than in WOS-negative lesions(4.2%)(P = 0.001). The incidence of deep expression was predominant among cancers with massive submucosal invasion(62.5%) compared to adenoma(7.2%) and high-grade dysplasia or cancers with slight submucosal invasion(12.7%)(P = 0.0001).CONCLUSION The distribution of lipid droplets may be closely associated with the visibility of WOS under M-NBI colonoscopy, and with histologic grade and depth of tumor invasion.

关键词： White opaque substance Adipophilin Magnifying narrow-band imaging Colorectal neoplasm Magnifying endoscopy

Metal Fluorides Produced Using Chlorine Trifluoride Gas

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Journal of Surface Engineered Materials and Advanced Technology 2015年第4期5卷 228-236页

作者： Hitomi Matsuda Hitoshi habuka Yuuki ishida Toshiyuki Ohno Department of Chemical and Energy Engineering Yokohama National University Yokohama Japan National Institute of Advanced Industrial Science and Technology Tsukuba Japan FUPET Tsukuba Japan

For developing coating materials, the fluorides of scandium, lanthanum, strontium, barium, magnesium and aluminum were produced from their oxides and chlorides by means of exposure to chlorine trifluoride gas at temperatures between room temperature and 700°C. The metal chlorides could be easily fluorinated even at room temperature, while the metal oxides required temperatures higher than 300?C. After the heating in ambient hydrogen at 1100°C, the fluorides of lanthanum and barium showed very low weight losses at 1100°C, although the weights of the other fluorides significantly decreased. These materials may work as protective films against corrosive and high temperature environments, particularly when using the chlorine trifluoride gas.

关键词： Metal Fluoride Metal Oxide Chlorine Trifluoride Synthesis Coating Film Material

Application of Sparse-Coding Super-Resolution to 16-Bit DICOM Images for Improving the Image Resolution in MRI

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Open Journal of Medical Imaging 2017年第4期7卷 144-155页

作者： Junko Ota Kensuke Umehara Naoki Ishimaru Takayuki ishida Department of Medical Physics and Engineering Graduate School of Medicine Osaka University Suita Japan

Purpose: To improve the image resolution of magnetic resonance imaging (MRI), conventional interpolation methods are commonly used to magnify images via various image processing approaches;however, these methods tend to produce artifacts. While super-resolution (SR) schemes have been introduced as an alternative approach to apply medical imaging, previous studies applied SR only to medical images in 8-bit image format. This study aimed to evaluate the effectiveness of sparse-coding super-resolution (ScSR) for improving the image quality of reconstructed high-resolution MR images in 16-bit digital imaging and communications in medicine (DICOM) image format. Materials and Methods: Fifty-nine T1-weighted images (T1), 84 T2-weighted images (T2), 85 fluid attenuated inversion recovery (FLAIR) images, and 30 diffusion-weighted images (DWI) were sampled from The Repository of Molecular Brain Neoplasia Data as testing datasets, and 1307 non-medical images were sampled from the McGill Calibrated Color Image Database as a training dataset. We first trained the ScSR to prepare dictionaries, in which the relationship between low- and high-resolution images was learned. Using these dictionaries, a high-resolution image was reconstructed from a 16-bit DICOM low-resolution image downscaled from the original test image. We compared the image quality of ScSR and 4 interpolation methods (nearest neighbor, bilinear, bicubic, and Lanczos interpolations). For quantitative evaluation, we measured the peak signal-to-noise ratio (PSNR) and structural similarity (SSIM). Results: The PSNRs and SSIMs for the ScSR were significantly higher than those of the interpolation methods for all 4 MRI sequences (PSNR: p p Conclusion: ScSR provides significantly higher image quality in terms of enhancing the resolution of MR images (T1, T2, FLAIR, and DWI) in 16-bit DICOM format compared to the interpolation methods.

关键词： Super-Resolution Sparse-coding Super-Resolution (ScSR) MRI DICOM 16-Bit

Analgesic Efficacy of the Erector Spinae Plane (ESP) Block for Pneumothorax Surgery: A Retrospective Study

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Open Journal of Anesthesiology 2019年第3期9卷 35-41页

作者： Yumi ishida Hironobu Ueshima Sakatoshi Yoshiyama Hiroshi Otake Department of Anesthesiology Showa University Hospital Tokyo Japan

Background: Poor perioperative pain management during pneumothorax surgery leads to respiratory complications in the post-operative period. The erector spinae plane (ESP) block technique has been shown to be able to block the thoracic spinal nerves. Therefore, the ESP block may provide effective analgesic during thoracic surgery. We have retrospectively investigated the effectiveness of the ESP block for postoperative pain management in pneumothorax surgery. Patients and Methods: Patients who underwent pneumothorax surgery in 2017 were selected for the study. The primary outcome was assessed using the numeric pain rating (NRS) scales until the morning of the second post-operative day. The secondary outcomes were the cumulative amount of additional intravenous fentanyl administration until the morning of the second post-operative day. Results: This retrospective study included 29 patients who underwent pneumothorax surgery. Of these patients, 13 patients received only general anaesthesia (control group), while the other 16 patients received the ESP block in addition to general anaesthesia (study group). Compared to the control group, the study group did not show lower NRS scores at 1, 2, 4, 6, 12, and 24 hours post-surgery (P = 0.09, 0.17, 0.06, 0.36, 0.47, and 0.71). As for the cumulative amount of additional fentanyl, there were also no significant differences between the both groups. Conclusions: The ESP block could not provide effective analgesia for the 24 hours post-surgery period in patients undergoing pneumothorax surgery.

关键词： Dorsal Rami Pnumothorax Surgery Perioperative Pain Management