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Measurement of Ion Cyclotron Emissions by Using High-Frequency Magnetic Probes in the LHD

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Plasma Science and Technology 2013年第3期15卷 209-212页

作者： kenji saito Ryuhei KUMAZAWA Tetsuo SEKI Hiroshi KASAHARA Goro NOMURA Fujio SHIMPO Hiroe IGAMI Mitsutaka ISOBE Kunihiro OGAWA Kazuo TOI Masaki OSAKABE Masaki NISHIURA Tsuguhiro WATANABE Satoshi YAMAMOTO Makoto ICHIMURA Takashi MUTOH National Institute for Fusion Science Graduate School of Engineering Nagoya University Institute of Advanced Energy Kyoto University Tsukuba University Plasma Research Center

Two pairs of high-frequency magnetic probes were installed in the Large Helical Device （LHD）. During the injection of a perpendicular neutral beam, ion cyclotron emissions （ICEs） with the fundamental frequency corresponding to the ion cyclotron frequency at the plasma edge were detected, which are the same type of ICE as measured with the former spare ion cyclotron range of frequencies （ICRF） heating antennas. This type of ICE was further investigated with regard to the phase and intensity of signals. Another type of ICE was found in the LHD, and these ICEs were synchronized with bursts of toroidicity induced Alfv^n eigenmodes （TAE） and the rise of intensity of lost ion flux. Therefore the source of these ICEs was thought to be the particles transferred from the core to the outer region of plasma by the TAE bursts. The frequency of ICEs induced by the TAE bursts increases linearly with the magnetic field strength, since the ion cyclotron frequency increases with the magnetic field strength.

关键词： LHD ICE TAE lost particle high-frequency magnetic probe

Enzymatic remodeling of heparan sulfate:a therapeutic strategy for systemic and localized amyloidoses?

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Neural Regeneration Research 2016年第3期11卷 408-409页

作者： Kazuchika Nishitsuji Hiroyuki saito kenji Uchimura Department of Molecular Pathology Institute of Biomedical SciencesTokushima University Graduate School Department of Molecular Physical Pharmaceutics Institute of Biomedical SciencesTokushima University Graduate School Department of Biochemistry Nagoya University Graduate School of Medicine

In 1854,Rudolf Virchow introduced the term＂amyloid＂to indicate white waxy deposits that stained positive for iodine and that were found in many organs of patients with chronic inflammatory *** observed that these deposits stained pale blue after treatment with iodine and became dark blue or black after subsequent addition of sulfuric acid,in a similar manner to that of cellulose or carbohydrate.

关键词： heparan amyloid remodeling carbohydrate stained subsequent Virchow organs iodine cellulose

BRIEF ARTICLE New reduced volume preparation regimen in colon capsule endoscopy

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World Journal of Gastroenterology 2012年第17期18卷 2092-2098页

作者： Yasuo Kakugawa Yutaka saito Shoichi saito kenji Watanabe Naoki Ohmiya Mitsuyuki Murano Shiro Oka Tetsuo Arakawa Hidemi Goto Kazuhide Higuchi Shinji Tanaka Hideki Ishikawa Hisao Tajiri Division of Screening Technology and Development Research Center for Cancer Prevention and ScreeningNational Cancer CenterTokyo 104-0045Japan Endoscopy Division National Cancer Center HospitalTokyo 104-0045Japan Department of Endoscopy Jikei University School of MedicineTokyo 105-8461Japan Department of Gastroenterology Osaka City University Graduate School of MedicineOsaka 545-8685Japan Department of Therapeutic Medicine Nagoya University Graduate School of MedicineNagoya 466-8560Japan Second Department of Internal Medicine Osaka Medical CollegeOsaka 569-8686Japan Department of Endoscopy Hiroshima University HospitalHiroshima 734-8551Japan Department of Molecular-Targeting Cancer Prevention Graduate School of Medical ScienceKyoto Prefectural University of MedicineKyoto 602-0841Japan

AIM:To evaluate the effectiveness of our proposed bowel preparation method for colon capsule ***:A pilot,multicenter,randomized controlled trial compared our proposed "reduced volume method"(group A) with the "conventional volume method"(group B) preparation *** A did not drink polyethylene glycol electrolyte lavage solution(PEGELS) the day before the capsule procedure,while group B drank 2 *** the procedure day,groups A and B drank 2 L and 1 L of PEG-ELS,respectively,and swallowed the colon capsule(PillCam COLON capsule).Two hours later the first booster of 100 g magnesium citrate mixed with 900 mL water was administered to both groups,and the second booster was administered six hours post capsule ingestion as long as the capsule had not been excreted by that *** videos were reviewed for grading of cleansing level,RESULTS:Sixty-four subjects were enrolled,with results from 60 *** A and B included 31 and 29 subjects,***-nine(94%) subjects in group A and 25(86%) subjects in group B had adequate bowel preparation(ns).Twenty-two(71%) of the 31 subjects in group A excreted the capsule within its battery life compared to 16(55%) of the 29 subjects in group B(ns).Of the remaining 22 subjects whose capsules were not excreted within the battery life,all of the capsules reached the left side colon before they stopped functioning.A single adverse event was reported in one subject who had mild symptoms of nausea and vomiting one hour after starting to drink PEG-ELS,due to ingesting the PEG-ELS faster than ***:Our proposed reduced volume bowel preparation method for colon capsule without PEG-ELS during the days before the procedure was as effective as the conventional volume method.

关键词： Colon capsule endoscopy Polyethylene glycol electrolyte lavage solution Colon cleanliness Reduced volume preparation method Isotonic magnesium citrate

East Asia Winter Monsoon changes inferred from environmentally sensitive grain-size component records during the last 2300 years in mud area southwest off Cheju Island,ECS

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Science China Earth Sciences 2006年第6期49卷 604-614页

作者： Yoshiki saito Geological Survey of Japan Tsukuba Ibaraki 305-8567 Japan

Environmentally sensitive grain-size component (ESGSC) extracted from grain-size data of a sediment core B2, which were retrieved from mud area southwest off Cheju Island (MACI), East China Sea (ECS), can be used to indicate the variations of East Asia Winter Monsoon (EAWM), with high (low) content/mean-size of ESGCS denote to strong (weak) EAWM. Combined with AMS14C datings core B2 provides a continuous high-resolution record of EAWM changes over the past 2300 years, with an average resolution of 13 years. The results show that the variations of EAWM are con-sistent with temperature changes inferred from historical documents in eastern China over the past 2300 years, from which four climate stages may be identified. In stages before 1900 aBP (50 AD) and 1450―780 aBP (50―1170 AD) the EAWM were comparatively weak, corresponding to warm climate periods in eastern China, respectively. And in stages of 1900―1450 aBP (50―500 AD) and 780―219 aBP (1170―1731 AD) the EAWM were strongly developed, which correspond well to climate changes of two cold periods in eastern China. It is also shown from this study that the stage at 780―219 aBP (1170―1731 AD) was the coldest climate period during the last 2300 years and could be, therefore, related to the Little Ice Age (LIA). Climatic fluctuations appeared obviously in all the four stages, and two climate events of abrupt changes from warm to cold occurred at around 1900 aBP (50 AD) and 780 aBP (1170 AD), of which the latter is probably related to globe-scale changes of atmospheric circulation at that time.

关键词： East China Sea, mud area, environmentally sensitive grain-size component, East Asia Winter Monsoon, Little Ice Age, Late Holocene.

Carcinoembryonic antigen-producing adrenal adenoma resected using combined lateral and anterior transperitoneal laparoscopic surgery

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World Journal of Gastroenterology 2007年第45期13卷 6094-6097页

作者： Tomohide Hori Kentaro Taniguchi Masashi Kurata kenji Nakamura kenji Kato Yoshifumi Ogura Makoto Iwasaki Shinya Okamoto Koichiro Yamakado Shintaro Yagi Taku Iida Takuma Kato Kanako saito Linan Wang Yoshifumi Kawarada Shinji Uemoto Department of Hepatobiliary Pancreatic Surgery Mie University Graduate School of Medicine 2-174 Edobashi Tsu City Mie Prefecture 514-8507 Japan Department of Surgery Matsusaka City Hospital 1550 Tono-machi Matsusaka City Mie Prefecture 515-8544 Japan Department of Anesthesiology Matsusaka City Hospital 1550 Tono-machi Matsusaka City Mie Prefecture 515-8544 Japan Department of Surgery Iwasaki Hospital 333 Isshinden-cho Tsu City Mie Prefecture 514-0114 Japan Department of Cardiology Mie University Graduate School of Medicine 2-174 Edobashi Tsu City Mie Prefecture 514-8507 Japan Department of Radiology Mie University Graduate School of Medicine 2-174 Edobashi Tsu City Mie Prefecture 514-8507 Japan Department of Hepatobiliary Pancreatic and Transplant Surgery Kyoto University Graduate School of Medicine 54 Kawahara-cho Shogoin Sakyo-ku Kyoto 606-8507 Japan Department of Cellular and Molecular Immunology Mie University Graduate School of Medicine 2-174 Edobashi Tsu City Mie Prefecture 514-8507 Japan Department of Medical Oncology and Immunology Mie University Graduate School of Medicine 2-174 Edobashi Tsu City Mie Prefecture 514-8507 Japan

A 74-year-old woman presented with symptoms consistent with hyperadrenocorticism and hyperca- techolaminism. She had a cushingoid appearance and her cortisol level was elevated. Her serum dopamine and noradrenalin levels were also elevated. Computed tomography detected a left adrenal mass measuring 3.5 cm x 3.0 cm in diameter. Metaiodobenzylguanidine scintigraphy was negative. Unexpectedly, the serum Serum carcinoembryonic antigen （CEA） level waselevated. Fluorodeoxyglucose positron emission tomography showed increased uptake in the adrenal tumor only, with a maximum standardized uptake value of 2.8. Selective venography and blood sampling revealed that the concentrations of cortisol, catecholamines and CEA were significantly elevated in the vein draining the tumor. A diagnosis of CEA-producing benign adenoma was made. After preoperative management, we performed a combined lateral and anterior transpedtoneal laparoscopic adrenectomy. Her vital signs remained stable during surgery. Histopathological examination revealed a benign adenoma. Her cortisol, catecholamine and CEA levels normalized immediately after surgery. We present, to the best of our knowledge, the first case of CEA-producing adrenal adenoma, along with a review of the relevant literature, and discuss our laparoscopic surgery techniques.

关键词： Carcinoembryonic antigen Laparoscopy Adenoma Adrenal gland Cushing syndrome

A Bubble Column Dehumidifier using Ionic Liquid Desiccant for Low-Humidity Industries: Insights into Transfer Processes Integrating Experiment and CFD Modelling

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Journal of Thermal Science 2024年第6期33卷 2348-2371页

作者： CAO Bowen YIN Yonggao saito Kiyoshi School of Energy and Environment Southeast UniversityNanjing 210096China School of Fundamental Science and Engineering Waseda UniversityTokyo 169-8555Japan Department of Applied Mechanics and Aerospace Engineering Waseda UniversityTokyo 169-8555Japan

Liquid desiccant deep dehumidification(LDDD)is an excellent energy-saving technology for low-humidity *** liquids(ILs)are favored as optimal working fluids for LDDD,owing to their low vapor pressure,non-crystallization,and *** combined application of IL desiccant with the bubble column has been proven to effectively improve deep *** present work focuses specifically on the insights into air-liquid transfer processes in bubble column dehumidifier using ionic liquid *** effect of operating parameters on volumetric transfer coefficient is examined based on the experimental ***,the bubble swarms meso-scale flow structure is predicted using computational fluid dynamics coupled with a population balance model(CFD-PBM).Besides,the structure-activity relationship between meso-scale flow structure and transfer performance is *** results indicated a notable phenomenon of bubble aggregation/breakage in the moist air-IL desiccant bubbly deep dehumidification(MA-ILD BDD)system,with a specific interfacial area is basically less than 40 m^(-1).Meanwhile,a decrease in solution temperature,correlated with a significant increase in viscosity,leads to larger turbulent eddies and a slower breakage ***,a high transfer potential difference enhances heat and mass transfer coefficients at lower solution temperatures,with the mass transfer coefficient at 4℃ being approximately three times that at 10℃.As the superficial velocity changes,the specific interfacial area and heat and mass transfer coefficients have a positive synergistic effect on volumetric transfer ***,this synergistic effect is reversed with variations in solution *** study aims to clarify the air-liquid transfer mechanism in bubble column dehumidifierusingILdesiccant.

关键词： liquid desiccant ionic liquid bubble column deep dehumidification heat and mass trans low-humidityindustries

Robust camera pose estimation by viewpoint classification using deep learning

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Computational Visual Media 2017年第2期3卷 189-198页

作者： Yoshikatsu Nakajima Hideo saito Department of Science and Technology Keio UniversityJapan

Camera pose estimation with respect to target scenes is an important technology for superimposing virtual information in augmented reality(AR). However, it is difficult to estimate the camera pose for all possible view angles because feature descriptors such as SIFT are not completely invariant from every perspective. We propose a novel method of robust camera pose estimation using multiple feature descriptor databases generated for each partitioned viewpoint, in which the feature descriptor of each keypoint is almost invariant. Our method estimates the viewpoint class for each input image using deep learning based on a set of training images prepared for each viewpoint class. We give two ways to prepare these images for deep learning and generating databases. In the first method, images are generated using a projection matrix to ensure robust learning in a range of environments with changing *** second method uses real images to learn a given environment around a planar pattern. Our evaluation results confirm that our approach increases the number of correct matches and the accuracy of camera pose estimation compared to the conventional method.

关键词： pose estimation augmented reality(AR) deep learning convolutional neural network

Resourceability on nuclear fuel cycle by transmutation approach

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Science China Chemistry 2012年第9期55卷 1746-1751页

作者： OZAWA Masaki saito Masaki Research Laboratory for Nuclear Reactors Tokyo Institute of Technology2-12-1-N1-1 OokayamaMeguro-kuTokyo 152-8550Japan

A resourceability on nuclear fuel cycle by transmutation of fission products in the spent fuel of nuclear reactors is discussed in this paper to investigate the feasibility of ＂creation and utilization＂ of Apr6s ORIENT from Adv.-ORIENT cycle, in which chemical ＂separation and utilization＂ of nuclear rare metals （platinum group metals, Mo, Tc, rare earth, etc.） has been proposed since FY2006. Apr6s ORIENT research program was newly initiated in FY2011 for nuclear transmutation of fission products into stable or short-lived highly-valuable elements. In the resourceability of rare earth metals from fission products, non-radioactive Nd and Dy can be created from Pr and Tb, respectively, by transmutation. Especially, the Dy creation has relatively high feasibility of about 10-20 %/y in creation rate. A proper moderation of neutrons in blanket of fast reactors may be required to provide a high creation rate of La from Ba. In light platinum group metals, non-radioactive Ru can be created from Tc by transmutation, of which creation rate is about 4-5 %/y in blanket of fast reactors. Pd created from Rh is almost non-radioactively depending on the isotope fraction of 107pd. Rh creation from Ru is not feasible under the neutron irradiation of typical nuclear reactors.

关键词： Apres ORIENT Advanced ORIENT cycle nuclear rare metal transmutation nuclear fuel cycle

Mapping urban building stocks for vulnerability assessment preliminary results

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International Journal of Digital Earth 2011年第S1期4卷 117-130页

作者： Keiko saito Robin Spence Department of Architecture University of CambridgeCambridgeUK Cambridge Architectural Research Ltd CambridgeUK Willis Research Fellow Willis Research Network

This paper discusses a methodology to collect building inventory data by combining image processing techniques,field work or tools such as Google Street View and applying statistical *** the methodology outlined in Marinescu(2002),a family of Gabor filters are first constructed,which are then applied to an optical high-resolution *** output from the processed image is segmented using Self-Organising *** paper examines the relationship between the segmented areas in the image and the building type distribution within each segmented area,by deriving the distribution from field *** relationship between the average number of buildings in these cells against the number of grid cells allocated to each segmentation cluster is also ***,using these results,the overall building inventory distribution for the whole of the case study site of Pylos is presented.

关键词： building inventory data collection remote sensing high-resolution optical satellite images Gabor filters Self-Organising Maps field data