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Influence of the Karman Vortex Street on the Broadband Noise Generated from a Multiblade Fan

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Journal of Thermal Science 2005年第3期14卷 198-205页

作者： souichi SASAKI Yoshio KODAMA Hidechito HAYASHI Makoto HATAKEYAMA Mechanical systems engineering Nagasaki University 1-14 Bunkyo-machi Nagasaki City 852-8521 Japan Doctor of EngineeringMechanical systems engineering Nagasaki University 1-14 Bunkyo-machi Nagasaki City 852-8521 JapanMechanical systems engineering Nagasaki University 1-14 Bunkyo-machi Nagasaki City 852-8521 JapanProducts R&D Laboratory TOTO Ltd. 2-8-1 Honson Chigasaki City 253-8577 Japan

In the prediction theory for the broadband noise generated from a multiblade fan, the vortices in the Karman vortex street was divided into n pieces. The frequency distribution of the noise was estimated so that the Strouhal number could become constant even if the wake is spread by the diffusion. From the results of the measurement of the internal flow of the fan, it was found that the noise was related to the wake characteristics of the specific location in the scroll casing where the relative flow velocity was high. The noise operating in the vicinity of the maximum efficiency point of the fan was distributed over the domain from 500 Hz to 1250 Hz. It was experimentally proved that the influence of the Karman vortex street on the noise in the domains of high and low frequencies did not exist when the distribution of the estimated sound pressure level corresponded to the measured broadband noise.

关键词： aerodynamic acoustic Karman vortex street turbo machinery blade internal flow

Improved techniques for double-balloon-enteroscopy-assisted endoscopic retrograde cholangiopancreatography

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World Journal of Gastroenterology 2012年第46期18卷 6843-6849页

作者： Takashi Osoegawa Yasuaki Motomura Kazuya Akahoshi Naomi Higuchi Yoshimasa Tanaka Terumasa Hisano souichi Itaba Junya Gibo Mariko Yamada Masaru Kubokawa Yorinobu Sumida Hirotada Akiho Eikichi Ihara Kazuhiko Nakamura Department of Gastroenterology Aso Iizuka Hospital Department of Medicine and Bioregulatory Science Graduate School of Medical Sciences Kyushu University

AIM: To investigate the clinical outcome of double balloon enteroscopy (DBE)-assisted endoscopic retrograde cholangiopancreatography (DB-ERCP) in patients with altered gastrointestinal anatomy. METHODS: Between September 2006 and April 2011, 47 procedures of DB-ERCP were performed in 28 patients with a Roux-en-Y total gastrectomy (n = 11), Billroth Ⅱ gastrectomy (n = 15), or Roux-en-Y anastomosis with hepaticojejunostomy (n = 2). DB-ERCP was performed using a short-type DBE combined with several technical innovations such as using an endoscope attachment, marking by submucosal tattooing,selectively applying contrast medium, and CO2 insufflations. RESULTS: The papilla of Vater or hepaticojejunostomy site was reached in its entirety with a 96% success rate (45/47 procedures). There were no significant differences in the success rate of reaching the blind end with a DBE among Roux-en-Y total gastrectomy (96%), Billroth Ⅱ reconstruction (94%), or pancreatoduodenectomy (100%), respectively (P = 0.91). The total successful rate of cannulation and contrast enhancement of the target bile duct in patients whom the blind end was reached with a DBE was 40/45 procedures (89%). Again, there were no significant differences in the success rate of cannulation and contrast enhancement of the target bile duct with a DBE among Roux-en-Y total gastrectomy (88 %), Billroth Ⅱ reconstruction (89%), or pancreatoduodenectomy (100%), respectively (P = 0.67). Treatment was achieved in all 40 procedures (100%) in patients whom the contrast enhancement of the bile duct was successful. Common endoscopic treatments were endoscopic biliary drainage (24 procedures) and extraction of stones (14 procedures). Biliary drainage was done by placement of plastic stents. Stones extraction was done by lithotomy with the mechanical lithotripter followed by extraction with a basket or by the balloon pull-through method. Endoscopic sphincterotomy was performed in 14 procedures with a needle precutting knife us

关键词： Double-balloon enteroscopy Endoscopic retrograde cholangiopancreatography Pathological anatomy Pancreatobiliary disease

Alteration of Taste Acuity in Pediatric Cancer Patients after Treatment Completion: A Cross-Sectional Study Using a Filter-Paper Disc Method

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Food and Nutrition Sciences 2014年第14期5卷 1440-1446页

作者： Ayako Nagai Masaru Kubota souichi Adachi Ken-ichiro Watanabe Yasufumi Takeshita Department of Human Life and Environment Nara Women’s University Nara Japan Department of Pediatrics Kyoto University Hospital Kyoto Japan Department of Pediatrics Nara Medical University Hospital Nara Japan

Taste acuity of adult patients undergoing cancer treatment has been well investigated;however, studies of taste acuity after completion of cancer treatment are limited, particularly in children. This study aimed to assess taste acuity in pediatric cancer patients after treatment completion. Seventy-three patients who had completed cancer treatment (median age, 13 years;range, 7 - 18 years) and had not received any further treatment for at least 6 months were enrolled. Eighty-one healthy children (median age, 10 years;range, 8 - 19 years) served as controls. We determined the thresholds for four tastes (sweet, salty, sour, and bitter) using the filter-paper disc method. There was no significant difference in the thresholds of taste acuity for the four test solutions between the patient and control groups. The duration since treatment completion (<5 years vs. ≥5 years) had no significant impact on taste acuity for the four test solutions. The threshold for tasting salt was significantly higher in the group that had received chemotherapy + radiation and/or hematopoietic stem cell transplantation than that in the group that had received chemotherapy-only. Our results indicated that taste acuity after treatment completion in pediatric cancer patients was the same as that in healthy children. However, some treatment modalities were correlated with an impaired ability to taste salt. Gustatory test results should be considered while deciding nutritional support modalities after treatment completion in pediatric cancer patients.

关键词： Pediatric Cancer Cancer Treatment Filter-Paper Disc Method Taste Acuity

Peculiar Concentration Dependence of H/D Exchange Reaction in 1-Butyl-3-methylimidazolium Tetrafluoroborate-D<sub>2</sub>O Mixtures

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Open Journal of Physical Chemistry 2011年第3期1卷 70-76页

作者： Hiroshi Abe Naohiro Hatano Yusuke Ima souichi Ohta Akio Shimizu Yukihiro Yoshimura 不详

We have investigated the H/D exchange reaction between heavy water and an ionic liquid, 1-butyl-3-methyl-imidazolium tetrafluoroborate ([bmim][BF4]), throughout the whole concentration region as a function of D2O mol% at room temperature. We expected that the extent of the H/D reaction would increase linearly with increasing content of D2O, but the results show an extended N-shaped behavior having a small maximum at around 40 mol% and the reaction becomes very slow at a specific concentration around 80 mol%. We found that this non-linear concentration dependence correlates with the pD dependence of the solutions.

关键词： H/D Exchange Reaction pD NMR Ionic Liquid

Japanese Encephalitis Virus Replication and Inhibitory Effect of shRNA in Mice

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Advances in Microbiology 2016年第6期6卷 462-470页

作者： Manabu Murakami Takafumi Tasaki souichi Nukuzuma Hiroshi Minato Takayuki Nojima Yasuhito Ishigaki Tsutomu Takegami Department of Life Science Medical Research Institute Kanazawa Medical University Uchinada Japan Kobe Institute of Health Kobe City Japan Department of Clinical Pathology Kanazawa Medical University Uchinada Japan

Japanese Encephalitis Virus (JEV) is responsible for over 30,000 annual cases of encephalitis worldwide, causing 30% mortality. JEV is thus a continuing threat to public health, so development of new antiviral drugs against JEV is desirable. Here, we examined JEV replication in mouse and used a short hairpin RNA JRi as the antiviral agent. The features of virus replication in neuron and survival rates of mice infected with JEV were different between virus strains. The mice infected with the virulent JEV strain (JaGAr01) were injected with pJRi (100 μg/mouse) which produced shRNAJRi. The survival rates of mice treated at 3 days before, the same day and 3 days after JEV infection were 22%, 78% and 44%, respectively. In addition, we demonstrated that the injection of pJRi induced interferon (IFN) production in cells and mice. These results suggest that the replication of JEV can be efficiently inhibited by RNAi and innate immunity including IFN. These data mean that pJRi has the inhibitory activity against JEV infection in vivo, and could be used as an antiviral drug to treat JEV infection.

关键词： Japanese Encephalitis Virus Mice shRNA Antiviral

HIGH RESOLUTION VTR FOR HOME USE

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HIGH RESOLUTION VTR FOR HOME USE

Hepatitis B virus reactivation with a rituximab-containing regimen

1987 International Symposium on Broadcasting Technology(ISBT’87)

作者： Hironobu Katayama Satoshi Murakami Michiyuki Sugino Takamasa Ueshima Masakazu Ishikawa Takayoshi Yamaguchi souichi Iwamura Sharp Corporation Tokyo Research Laboratories

An experimental high resolution VTR for home use,which can record the wide band video signal such as the NTSC-TV for broadcasting or EDTV (Extended Definition TV System) recommended by Hitachi,has recently been developed. Such wide band video signal is recorded on only one recording channel without any bandwidth compression techniques by the combination of the Co-doped γFeO tape and newly-developed ferrite heads. In this paper,the design policy to realize the wide band recording and the construction and performances of the experimental 1/2 inch home use VTR are introduced.

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World Journal of Hepatology 2015年第21期7卷 2344-2351页

作者： Yutaka tsutsumi Yoshiya Yamamoto Shinichi Ito Hiroyuki Ohigashi souichi Shiratori Hirohito Naruse Takanori Teshima Department of Hematology Hakodate Municipal Hospital Department of Gastro-enterology Hakodate Municipal Hospital Department of Hematology Hokkaido University Graduate School of Medicine

Rituximab is currently used not only in the treatment of B-cell lymphoma but also for various other diseases, including autoimmune diseases, post-transplant graft vs host disease, and rejection following kidney transplants. Due to rituximab's widespread use, great progress has been made regarding research into complications that arise from its use, one of the most serious being the reactivation of hepatitis B virus(HBV), and efforts continue to establish guidelines for preventive treatment against this occurrence. This report discusses preventive measures against rituximab-induced HBV reactivation and future objectives.

关键词： Rituximab Hepatitis B virus Reactivation Nucleosid

Relationship among Health Related Quality of Life, Quality of Sleep, and Oral Health Condition

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Health 2018年第2期10卷 204-214页

作者： Miki Sato Arisa Kurokawa Hiroko Sugimoto Yuko Yasuhara Hiromi Nakae Yukari Shinohara Tetsuya Tanioka Hiroki Iga Daisuke Hinode Yoshihiro Suzuki souichi Honda Rozzano Locsin Faculty of Nursing Kochi University Kochi Japan Graduate School of Health Sciences Tokushima University Japan Department of Nursing Institute of Biomedical Sciences Tokushima University Tokushima Japan Department of Oral Health Sciences Faculty of Health and Welfare Tokushima Bunri University Tokushima Japan Tokushima Municipal Hospital Tokushima Japan Department of Oral Science Institute of Biomedical Sciences Tokushima University Graduate School Tokushima Japan Minami Municipal Hospital Tokushima Japan

Japan’s aging rate (ratio of elderly aged 65 and older to total population) has exceeded 20%. The aim of this study was to clarify the relationships between Health Related Quality of Life, Body Mass Index (BMI), and sleep quality. Subjects were 51 adults over 55 years old with chronic disease who living in the community. Instruments and structured interviews were used giving due consideration to privacy. Interviews were conducted within 10 - 20 minutes at the out-patient department. The evaluation instruments included bodymass index, Pittsburgh Sleep Quality Index (PSQI), Health Related Quality of Life (HRQOL), and Oral Health Impact Profile (OHIP-14). A significant positive correlation (ρ = 0.321, p < 0.05) between PSQI and QOL (OHIP-14) scores was confirmed with sleep quality being lower with lower QOL scores. A negative correlation (ρ = ?0.339, p < 0.05) between physical health component summary scores (PCS) and mental health component summary scores (MCS) of HRQOL was confirmed, demonstrating that PCS was low, and the level of MCS was high. Sleep quality was found lower among those with lower oral health-related QOL scores. Moreover, in subjects with lower MCS scores, the PCS scores were found to be higher. Accordingly, it was considered appropriate that dental treatment and care, support the maintenance of activities and sleep, and mental health promotion which are likely requisites critical for elderly persons’ maintenance of independent lifestyles in their familiar community.

关键词： Health Related Quality of Life Body-Mass Index Quality of Sleep Oral Condition Over 55 Years Old Middle Aged and Older Japanese Adults

Effectiveness of boron neutron capture therapy for recurrent head and neck malignancies

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中国口腔颌面外科杂志 2008年第B5期6卷 79-80页

作者： Itsuro Kato Yusei Fujita Akitoshi Kamida Akira Maruhashi Yoshinofi Sakurai Hiroaki Kumada Masatoshi Ohmae Mitsunori Kifihata Yoshio Imahori Tetsuro Sumi souichi Iwai Mitsuhiro Nakazawa Koji Ono Department of Oral and Maxillofacial Surgery 11 Osaka University Graduate School of Dentistry Suita Osaka 5650871 Japan Radiation Oncology Osaka 590-494 Japan Research Reactor Institute Research Reactor Institute School of Medicine Sapporo Medical University Hokkaido 060-8556 Japan JapanAtomic Energy Agency Tokai Research and Development Center lbaraki Japan Department of Oral and Maxillofacial Surgery Izumisano Municipal Hospital Rinku General Hospital lzumisao Osaka 598-0048 Japan Graduate School of Agriculture and Life Sciences Osaka Prefecture University Osaka 599-8531 Japan CEO of Cancer Intelligence Care System Inc. Tokyo 135-0063 Japan

Background: Recurrent head & neck malignancies (HNM) are often radio-/chemo-resistant and show extensive growth, necessitating a wide resection including surrounding tissues。To avoid severe impairment of oro-facial structures and functions, it is necessary to explore new treatments for HNM。Boron neutron capture therapy (BNCT) is tumor-cell targeted radiotherapy that has significant superiority over conventional radiotherapies in principle。When 10B absorbs thermal neutrons, the alpha and 7Li particles generated by the 10B(n, alpha)7Li reaction are high LET particles, and carry high kinetic energy (2.34MeV), and have short ranges (4-9 micron-meters) of approximately one-cell diameter, resulting in a large relative biological effectiveness and selective destruction of tumor cells containing 10B。We have, first in the world treated with BNCT for a patient with parotid gland carcinoma in 2001。Purpose: To evaluate the effect of BNCT on Recurrent head & neck malignancies。Methods: So far for 6 years, we have treated with 42 times of BNCT for 26 patients with a recurrent HNM who were composed of 19 squamous cell carcinomas (SCC), 4 salivary gland carcinomas and 3 sarcomas。Results: (1) 10B concentration of tumor/normal tissue ratios (T/N ratio) of PET studies wereSCC: 1.8-5.7, sarcoma: 2.5-4.0, parotidtumor: 2.5-3.7。(2)Regression rateswere CR: 12cases (46%), PR: 10cases (39%), PD: 3cases (12%), NE (not evaluated):lcase。

关键词：中子俘获治疗法头颈部恶性肿瘤治疗方法