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An advection fog event response to future climate forcing in the 2030s-2080s:a case study for Shanghai

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Frontiers of Earth Science 2023年第2期17卷 527-546页

作者： Ying GU Hiroyuki kusaka Quang-Van DOAN School of Air Transportation Shanghai University of Engineering ScienceShanghai 201620China Center for Computational Sciences University of Tsukuba1-1-1 TennodaiTsukubaIbaraki 305-8577Japan

Fog may continue to inhibit industry in the ***,we focused on a specific advection fog event in Shanghai,China,and applied a pseudo global warming method to examine advection fog under the RCP8.5 highemission *** method involved downscaling the future atmospheric conditions over the ensemble average of 19 global climate models from the fifth phase of the Coupled Model Intercomparison Project(CMIP5).We used the Weather Research and Forecasting Model coupled with a single-layer urban canopy model(WRF‒UCM)to run four sensitivity experiments and examined the advection fog and its relationship to changes in meteorological *** results showed that:1)The advection fog event tended to remain in Shanghai despite global warming;2)advection fog will not change greatly in the future;however,the onset and dissipation times will change slightly;3)relative humidity(RH)locally increases prior to the onset of the advection fog,and decreases at the dissipating stage,despite the current and future experiments having the same RH initial and boundary conditions;4)a small increase in surface air temperature and an increase in RH contribute to the early advection fog onset,and vice *** facilitates the early onset and dissipation of advection fog.

关键词： advection fog global warming PGW DDS WRF-UCM Shanghai

Effect of core bar inserted into weld faying part to obtain an ideal pipe joint with non-generating inner flash via friction welding

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Advances in Manufacturing 2020年第3期8卷 418-428页

作者： M.Kimura S.Iwamoto M.kusaka K.Kaizu Department of Mechanical Engineering Graduate School of EngineeringUniversity of HyogoShosha 2167HimejiHyogo671-2280Japan Department of Mechanical Engineering University of HyogoShosha 2167HimejiHyogo671-2280Japan

In this study,the effect of core bar inserted into weld faying part to obtain an ideal pipe joint with non-generating inner flash via friction welding is described.A steel pipe with inner and outer diameters corresponding to 8.0 mm and 13.5 mm was used,and the weld faying surface was machined to a groove shape of a flat(butt)*** core bar of various materials was inserted in the weld faying part of the pipes,and those pipes were welded with a friction speed of 27.5 s−1 and friction pressure of 30 *** core bars did not decrease inner flash when joints were fabricated with a core bar of some metallic materials with melting points below that of steel;thus,they were melted during the welding *** joint with an alumina core bar did not decrease inner flash and was crushed by generating an inner ***,a commercially pure tungsten(CP-W)core bar was successfully achieved for decreasing the inner ***,all joints with a CP-W core bar did not exhibit the tensile strength of the base metal and a fracture in the base metal,when they were fabricated during the same time,the friction torque reached the initial *** joint exhibited a fracture in the base metal when it was fabricated with a CP-W core bar and a taper groove shape that was proposed in the previous ***,the core bars were easily removed from the joints;thus the joint with almost no inner flash was successfully *** reduce the inner flash of pipe joints,they should be fabricated with a CP-W core bar inserted into the weld faying part with a taper groove shape.

关键词： Friction welding Steel pipe Inner flash Core bar Joint strength Taper groove shape

Two-dimensional optical tomography of hemodynamic changes in a preterm infant brain

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Chinese Optics Letters 2007年第8期5卷 472-474页

作者：高峰薛媛赵会娟 Takashi kusaka Masanori Ueno Yukio Yamada College of Precision Instrument and Optoelectronics Engineering Tianjin University Faculty of Medicine Kagawa University Kagawa 761-0793Japan Department of Mechanical Engineering and Intelligent Systems University of Electro-Communications Tokyo 182-8585Japan

Our preliminary results on two-dimensional （2D） optical tomographic imaging of hemodynamic changes in a preterm infant brain are reported. We use the established 16-channel time-correlated single photon counting system for the detection and generalized pulse spectrum technique based algorithm for the image reconstruction. The experiments demonstrate that diffuse optical tomography may be a potent means for investigating brain functions and neural development of infant brains in the perinatal period.

关键词： In Two-dimensional optical tomography of hemodynamic changes in a preterm infant brain

Effect of weld faying part groove shape on reduction of inner flash in steel pipe joints fabricated by friction welding

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Advances in Manufacturing 2019年第4期7卷 411-422页

作者： M.Kimura S.Iwamoto M.kusaka K.Kaizu Y.Nakatani M.Takahashi Department of Mechanical Engineering Graduate School of EngineeringUniversity of Hyogo2167 ShoshaHimejiHyogo 671-2280Japan Toshiba Energy Systems&Solutions Corporation 2-4 Suehiro-choTsurumi-kuYokohamaKanagawa 230-0045Japan Department of Mechanical Engineering Faculty of EngineeringNishinippon Institute of Technology1-11 NiitsuKanda-machiMiyako-gunFukuoka 800-0394Japan

The groove shape of the weld faying part was investigated to obtain an ideal pipe frictiowelded joint that had a fracture in the base metal and no inner flash of *** steel pipe had inner and outer diameters of 8.0 mm and 13.5 mm,respectively,and the weld faying surface was of a basic flat shape(butt)***,stepped and tapered groove shapes were *** groove shapes were welded with a friction speed of 27.5 s_1 and a friction load of 2.79 *** phenomena during the welding process were observed,and the tensile strength of joints was *** joints,that fabricated with flat or step groove shapes,made with a friction time at which the friction torque reached the initial peak did not have the tensile strength of the base metal nor a fracture in the base ***,the joints fabricated with a friction time that reached past the initial peak had a large flash,and they contained a fracture in the base *** contrast,when joints were made with a gently tapered groove shape with a friction time reaching the time of the initial peak,they achieved a fracture in the base metal,despite having an extremely small inner ***,the shape at the weld faying part was capable of reducing the flash exhausted from the weld interface.

关键词： Friction welding Steel pipe Inner flash Groove shape Taper Joint strength Fracture

Case of pediatric traditional serrated adenoma resected via endoscopic submucosal dissection

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World Journal of Gastroenterology 2017年第24期23卷 4462-4466页

作者： Sonoko Kondo Hirohito Mori Noriko Nishiyama Takeo Kondo Ryuichi Shimono Hitoshi Okada Takashi kusaka Department of Pediatrics Faculty of MedicineKagawa University Department of Gastroenterology and Neurology Faculty of MedicineKagawa University Department of Pediatric Surgery Faculty of MedicineKagawa University

Traditional serrated adenoma(TSA)is a type of serrated polyp of the colorectum and is thought to be a precancerous *** are three types of serrated polyps,namely,hyperplastic polyps,sessile serrated adenomas/polyps,and *** is the least common of the three types and accounts for about 5% of serrated *** we report a pediatric case of TSA that was successfully resected by endoscopic submucosal dissection(ESD).This rare case report describes a pediatric patient with no family history of colonic polyp who was admitted to our hospital with *** colonoscopy,we found a polypoid lesion measuring 10 mm in diameter in the lower *** selected ESD as a surgical option for en bloc resection,and histopathological examination revealed *** findings in this case suggest that TSA with precancerous potential can occur in children,and that ESD is useful for treating this lesion.

关键词： Pediatric colonic polyp Hematochezia Colorectal serrated lesions Traditional serrated adenoma Endoscopic mucosal resection Endoscopic submucosal dissection

Long-lived neutron-induced radioisotopes in OKTAVIAN facility concrete wall after 38 year-operation

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辐射防护 2020年第6期40卷 577-582页

作者： Fajar Panuntun Shingo Tamaki Sachie kusaka Fuminabo Sato Isao Murata Graduate School of Engineering Osaka UniversityYamadaoka 2-1SuitaOsaka565-0871Japan

An intense 14 MeV neutron source facility named OKTAVIAN was installed in the A15 building,Osaka University in *** the operation period,new radioisotopes with various half-life have been produced as neutron activation products in its concrete wall *** this work,we investigated the concrete wall in the heavy irradiation room of OKTAVIAN using gamma spectrometry method to discover the presence of radioisotope having large half-life value(long-lived radioisotope)as neutron activation *** simulations were performed prior to measurement to predict the presence of long-lived radioisotopes by employing MCNP5 and FISPACT codes.A pre-calibrated Germanium detector with high energy resolution was employed to measure the *** long-lived activation products have been observed such as 152 Eu,54 Mn,65 Zn,22 Na and 60 *** activity of each radioisotope was derived after estimating the detector efficiency using *** a result of the measurement and analysis,the followings are concluded:(1)Though presence of activation products represents radiological risk to everyone who performs an experimental activity in the irradiation room of the OKTAVIAN facility,the present result shows that past experiments were carried out safely without any significant additional exposure dose coming from the wall for the last 38 years.(2)The approximated total fluence of D-T neutrons to the wall was successfully estimated from the produced radioisotope,152 Eu,because it has the longest half-life of 13.5 years among the observed radioisotopes.(3)From the results of(1)and(2),it could be possible to estimate the total activity of the concrete wall in the OKTAVIAN facility,which is very essential and important information,because this would be very valuable for decommissioning or disposal of the facility in the future.

关键词： OKTAVIAN concrete wall shielding long-lived neutron-induced product total fluenced D-T neutron

Immunological Effects of Silica and Asbestos

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Cellular & Molecular Immunology 2007年第4期4卷 261-268页

作者： Takemi Otsuki Megumi Maeda Shuko Murakami Hiroaki Hayashi Yoshie Miura Masayasu kusaka Takashi Nakano Kazuya Fukuoka Takumi Kishimoto Fuminori Hyodoh Ayako Ueki Yasumitsu Nishimura Department of Hygiene Kawasaki Medical SchoolMatsushima 577Kurashiki 7010192Japan Eppley Institute for Cancer Research University of Nebraska Medical CenterOmahaNebraska 68198USA Department of Internal Medicine Kusaka Hospital1122 NishikatagamiBizen 7050021Japan Department of Respiratory Medicine Hyogo Medical College of Medicine1-1 Mukogawa-choNishinomiyaHyogo 6638131Japan Okayama Rosai Hospital 1-10-25 Chikkou-midori-machiOkayama 7028055Japan Department of Rehabilitation Faculty of Health Sciences and TechnologyKawasaki University of Medical Welfare288 MatsushimaKurashiki 7010193Japan Department of Nursing Kawasaki College of Allied Health Professions316 MatsushimaKurashiki 7010194Japan

Silicosis patients （SILs） and patients who have been exposed to asbestos develop not only respiratory diseases but also certain immunological disorders. In particular, SIL sometimes complicates autoimmune diseases such as systemic scleroderma, rheumatoid arthritis （known as Caplan syndrome）, and systemic lupus erythematoses. In addition, malignant complications such as lung cancer and malignant mesothelioma often occurr in patients exposed to asbestos, and may be involved in the reduction of tumor immunity. Although silica-induced disorders of autoimmunity have been explained as adjuvant-type effects of silica, more precise analyses are needed and should reflect the recent progress in immunomolecular findings. A brief summary of our investigations related to the immunological effects of silica/asbestos is presented. Recent advances in immunomolecular studies led to detailed analyses of the immunological effects of asbestos and silica. Both affect immuno-competent cells and these effects may be associated with the pathophysiological development of complications in silicosis and asbestos-exposed patients such as the occurrence of autoimmune disorders and malignant tumors, respectively. In addition, immunological analyses may lead to the development of new clinical tools for the modification of the pathophysiological aspects of diseases such as the regulation of autoimmunity or tumor immunity using cellmediated therapies, various cytokines, and molecule-targeting therapies. In particular, as the incidence of asbestosrelated malignancies is increasing and such malignancies have been a medical and social problem since the summer of 2005 in Japan, efforts should be focused on developing a cure for these diseases to eliminate nationwide anxiety.

关键词： silica asbestos immunology Fas regulatory T cell apoptosis

Magnifying narrow-band imaging with acetic acid to diagnose early colorectal cancer

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World Journal of Gastroenterology 2014年第43期20卷 16306-16310页

作者： Norihiro Goto Toshihiro kusaka Yumi Tomita Hideyuki Tanaka Yoshio Itokawa Yorimitsu Koshikawa Daisuke Yamaguchi Yoshitaka Nakai Shigehiko Fujii Hiroyuki Kokuryu Department of Gastroenterology and Hepatology Kyoto Katsura HospitalKyoto 615-8256Japan

AIM: To evaluate the diagnostic characteristics of magnifying endoscopy with acetic acid spray and narrow-band imaging (MA-NBI) for early colorectal cancer.

关键词： Colorectal cancer Endoscopy Neoplasia Narrow-band imaging Acetic acid

Improved Transfer Process for the Fully Additive Manufacturing of a Conductive Layer-Stacked Polymeric Cantilever

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Materials Sciences and Applications 2019年第1期10卷 45-52页

作者： Shusuke Kanazawa Yasuyuki kusaka Noritaka Yamamoto Hirobumi Ushijima Flexible Electronics Research Center National Institute of Advanced Industrial Science and Technology Tsukuba Japan

This paper reports on an efficient fabrication process for a polymeric cantilever covered with conductive nano silver. The entire structure can be constructed additively using a printing process, without the use of an etching process or a sacrificial layer. The fabricated cantilever exhibits good linearity and forms a submillimeter-ordered air gap between itself and the substrate surface. Fine operation of a capacitive force gauge was obtained using the capacitance between the conductive cantilever and an electrode on the substrate. This process is expected to make possible the efficient manufacturing of various types of sensors that measure mechanical strain in a cantilever structure.

关键词： Additive Manufacturing MEMS Screen Printing Polymer Sensor