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Web-GIS Based Visualization System of Predicted Ground Vibration Induced by Blasting in Urban Quarry Sites

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Journal of Geographic Information System 2019年第1期11卷 17-31页

作者： Youhei kawamura Yoshio Moriyama Hyongdoo Jang Department of Earth Resource Engineering and Environmental Science Akita University Akita Japan Minerals Energy and Chemical Engineering WASM Curtin University Kalgoorlie Australia

Blasting is routinely carried out at various resource extraction sites, even in urban areas. As a consequence of this, residents around urban quarry sites are affected by ground vibration induced by blasting on a regular basis. In this study, a prediction and visualization system for ground vibrations is developed for the purpose of reducing the adverse psychological effects of blasting. The system consists of predicting ground vibration using an Artificial Neural Network (ANN) and visualizing it on an online map using Web-GIS. A prediction model using ANN that learned the optimum weight by taking 50 sets of data indicated a regression value of 0.859 and a Mean Square Error (MSE) of 0.0228. Compared with previous researches, these values are not bad results. Peak Particle Velocity (PPV) was used as a metric to measure ground vibration intensity. A color contour is generated using GIS tools based on the PPV value of each prediction point. The system is completed by overlaying the contour onto a basic map in a website. The basic map shows the surrounding area through the use of Google Maps data. This system can be used by anyone with access to the internet and a browser, requiring no special software or hardware. In addition, mining operations can utilize the data to modify blasting design and planning to minimize ground vibration. In conclusion, this system has the potential to alleviate the worries of surrounding residents caused by ground vibrations from blasting due to the fact that they can personally check the predicted vibration around their locale. Furthermore, since this data will be publicly available on the internet, it is also possible that this system can contribute to research in other fields.

关键词： ANN Prediction Model PPV Web-GIS Ground Vibration Visualization

Performance Analysis of an Inverse Notch Filter and Its Application to F0Estimation

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Circuits and Systems 2013年第1期4卷 117-122页

作者： Yosuke Sugiura Arata kawamura Youji Iiguni Graduate School of Engineering Science Osaka University Osaka Japan

In this paper, we analyze an inverse notch filter and present its application to F0 (fundamental frequency) estimation. The inverse notch filter is a narrow band pass filter and it has an infinite impulse response. We derive the explicit forms for the impulse response and the sum of squared impulse response. Based on the analysis result, we derive a normalized inverse notch filter whose pass band area is identical to unit. As an application of the normalized inverse notch filter, we propose an F0 estimation method for a musical sound. The F0 estimation method is achieved by connecting the normalized inverse notch filters in parallel. Estimation results show that the proposed F0 estimation method effectively detects F0s for piano sounds in a mid-range.

关键词： Band Pass Filter Inverse Notch Filter Impulse Response Analysis

Analysis of N-Nitrosamine Migration from Rubber Teats and Soothers

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American Journal of Analytical Chemistry 2013年第6期4卷 277-285页

作者： Motoh Mutsuga Miku Yamaguchi Yoko kawamura Division of Food Additives National Institute of Health Sciences Tokyo Japan

A testing method for N-nitrosamines and N-nitrosatable substances in rubber teats and soothers was modified. N-Nitrosamines are generally analyzed using either a nitrogen chemiluminescence detector (NCD) or a thermal energy analyzer (TEA). However, because few testing laboratories are equipped with these devices, it is difficult to conduct these tests. Therefore, an analysis method for N-nitrosamines using the more widespread gas chromatography-mass spectrometry (GC-MS) method was improved. In addition, EN 12868 was used to prepare the test solutions because of its worldwide use and compliance with EU regulations. Using GC-MS, EN 12868 method targeting ten kinds of N-nitrosamines was modified. The determination limits of the method were 1.0 -1.5 μg/kg for N-nitrosamines and 4 -6 μg/kg for N-nitrosatable substances. Quantification was possible at 1/5 or less and 1/15 or less, respectively, of the regulation values listed in EU Directive 93/11/EEC. In terms of application, there were no problems with the selectivity of the detector. The recoveries were 58% -109% for N-nitrosamines and 59% -102% for N-nitrosatable substances. Screening and verification were possible by measuring the amount of secondary amines in the boiled solution and migration solution.

关键词： N-Nitrosamine N-Nitrosatable Substances Secondary Amine Rubber Teat and Soother GC-MS

Crumbs proteins stabilize the cone mosaics of photoreceptors and improve vision in zebrafish

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Journal of Genetics and Genomics 2021年第1期48卷 52-62页

作者： Qinlong Hao Mingjie Zheng Kechao Weng Yumei Hao Yao Zhou Yuchen Lin Feng Gao Ziqi Kou Shoji kawamura Ke Yao Pinglong Xu Jinghai Chen Jian Zou Eye Center of the Second Affiliated Hospital School of MedicineZhejiang UniversityHangzhou 310009China The Institute of Translational Medicine Zhejiang UniversityHangzhou 310058China Department of Cardiology The Second Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhou 310009China Department of Integrated Biosciences Graduate School of Frontier SciencesUniversity of TokyoKashiwaChiba 277-8562Japan Zhejiang Provincial Key Lab of Ophthalmology Hangzhou 310058China MOE Laboratory of Biosystems Homeostasis&Protection and Innovation Center for Cell Signaling Network Life Sciences InstituteZhejiang UniversityHangzhou 310058China

Although the unique organization of vertebrate cone mosaics was first described long ago,both their underlying molecular basis and physiological significance are largely ***,we demonstrate that Crumbs proteins,the key regulators of epithelial apical polarity,establish the planar cellular polarity of photoreceptors in *** heterophilic Crb2a-Crb2b interactions,the apicobasal polarity protein Crb2b restricts the asymmetric planar distribution of Crb2a in *** planar polarized Crumbs proteins thus balance intercellular adhesions and tension between photoreceptors,thereby stabilizing the geometric organization of cone ***,loss of Crb2b in zebrafish induces a nearsightedness-like phenotype in zebrafish accompanied by an elongated eye axis and impairs zebrafish visual perception for *** data reveal a detailed mechanism for cone mosaic homeostasis via previously undiscovered apical-planar polarity coordination and propose a pathogenic mechanism for nearsightedness.

关键词： Crumbs proteins Apical polarity Planar cellular polarity Cone mosaics Nearsightedness Visual perception

Molecular behavior of clay hydrates

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Molecular behavior of clay hydrates

Natural history of major complications in hepatitis C virus-related cirrhosis evaluated by per-rectal portal scintigraphy

The Sixth World Congress on Computational Mechanics in Conjunction with the Second Asian-Pacific Congress on Computational MechanicsⅠ

作者： Katsuyuki. kawamura Department of Earth and Planetary Sciences Tokyo Institute of Technology Ookayama 2-12-1 Meguro-ku Tokyo 152-8551 Japan

Clays are typical complex materials composed of clay minerals, rock -forming minerals, aqueous solution, and air-cavities etc. The crystals of clay minerals are often extremely small as nanometers. The atomic models for clays and clay minerals, therefore, have been developed to reveal and predict nano-scopic behaviors of the systems containing clay minerals using molecular simulation methods. The nano-properties are used for micro-macro analyses of clays and related materials. An interatomic potential model of following formula for two-body and three-body terms,

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World Journal of Gastroenterology 2005年第25期11卷 3882-3886页

作者： Etsushi kawamura Daiki Habu Takehiro Hayashi Ai Oe Jin Kotani Hirotaka Ishizu Kenji Torii Joji Kawabe Wakaba Fukushima Takashi Tanaka Shuhei Nishiguchi Susumu Shiomi Department of Nuclear Medicine Department of Hepatology Department of Public Health

AIM: To examine the correlation between the porto-systemic hypertension evaluated by portal shunt index (PSI) and life-threatening complications, including hepatocellular carcinoma (HCC), liver failure (Child-Pugh stage progression), and esophagogastric varices. METHODS: Two hundred and twelve consecutive subjects with HCV-related cirrhosis (LC-C) underwent per-rectal portal scintigraphy. They were allocated into three groups according to their PSI: group Ⅰ, PSI≤10%; group Ⅱ, 10%

关键词： Portal shunt index Porto-systemic shunting Per-rectal portal sdntigraphy Natural history Liver cirrhosis HCV Hepatocellular carcinoma Liver failure Varix

Disruption of the TWEAK/Fn14 pathway prevents 5-fluorouracil-induced diarrhea in mice

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World Journal of Gastroenterology 2017年第13期23卷 2294-2307页

作者： Takuhito Sezaki Yuki Hirata Teruki Hagiwara Yuki I kawamura Tadashi Okamura Rieko Takanashi Kenta Nakano Miwa Tamura-Nakano Linda C Burkly Taeko Dohi Department of Gastroenterology Research Center for Hepatitis and ImmunologyResearch InstituteNational Center for Global Health and Medicine Research Center for Hepatitis and Immunology Research InstituteNational Center for Global Health and Medicine 2~(nd)Department of Internal Medicine Osaka Medical College Section of Animal Models Department of Infectious DiseasesResearch InstituteNational Center for Global Health and Medicine Communal Laboratory Research InstituteNational Center for Global Health and Medicine Biogen

AIM To clarify the roles of TWEAK and its receptor Fn14 in 5-fluorouracil(5-FU)-induced *** Diarrhea was induced in wild-type(WT), Fn14 knockout(KO), and IL-13 receptor(IL-13R)α1 KO BALB/c mice using a single injection of 5-FU. Histological analysis, cytokine analysis, and flow cytometry was performed on ileal tissues and cells. Murine colon carcinomabearing mice were co-treated with an anti-TWEAK antibody and 5-FU. Embryonic fibroblast response to cytokines was also ***5-FU induced high Fn14 expression in epithelial cells. The severity of 5-FU-induced diarrhea was lower in Fn14 KO mice compared with WT mice. Administration of anti-TWEAK antibody reduced 5-FU-induced diarrhea without affecting the antitumor effects of 5-FU in vivo. 5-FU-induced expression of IL-13, IL-17 A, TNF-α, and IFN-γ in the ileum was Fn14 dependent. The severity of 5-FU-induced diarrhea was lower in IL-13Rα1 KO mice, indicating major role for IL-13 signaling via IL-13Rα1 in pathogenesis. We found that IL-13Rα2, an IL-13 neutralizing/cell protective receptor, was strongly induced by IL-33 in vitro and in vivo. IL-13Rα2 was upregulated in the ileum of 5-FU-treated Fn14 KO mice. Thus, the deletion of Fn14 upregulated IL-13Rα2 expression, which reduced IL-13 expression and activity. CONCLUSION Disruption of the TWEAK/Fn14 pathway affects several interconnected pathways, including those associated with IL-13, IL-33, and IL-13Rα2, to attenuate 5-FUinduced intestinal side effects.

关键词： Cancer chemotherapy Interleukin-13 Interleukin-33 Interleukin-13 receptor α2

Control of Oscillatory Thermocapillary Convection in a Half-Zone Liquid Bridge by Circumference Round Heating

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Control of Oscillatory Thermocapillary Convection in a Half-...

Benefit of Using Sick Child Care Facilities to the Children and Their Parents

第六届中日微重力科学专题研讨会

作者： Masaki KUDO Hiroshi kawamura Tokyo University of Science Chiba Japan Tokyo University of Science Chiba Japan

＜正＞1. INTRODUCTION Thermocapaillarity is of fundamental importance in material processing under microgravity condition. The floating-zone method （FZ） is a material process technique for producing and purifying single crystals of metals and oxides. It is widely known that, using this method, a transition to three-dimensional oscillatory thermocapillary convection takes place in the melt. The oscillatory state of the convection causes detrimental striations in the crystal structure, even under the microgravity condition . A half-zone model （HZ） has been employed to simplify the thermocapillary convection in FZ （fig.1）. In this model, two co-axial cylindrical rods hold a

关键词： Thermocapillary convection Half-zone liquid bridge Oscillation Control

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Health 2016年第11期8卷 1128-1141页

作者： Kyoko Fukumoto Mao kawamura Mayu Yoshitsugu Ikuko Sobue Mazda Hospital Hiroshima Japan Hiroshima University Hospital Hiroshima Japan Division of Nursing Science Graduate School of Biomedical & Health Sciences Hiroshima University Hiroshima Japan

Introduction: Sick child care is a form of nursing care provided temporarily for sick children when they cannot be cared for by their parents at home. To clarify the benefits of using sick child care facilities for children and their parents, we surveyed these parents about the benefits of such care and their needs. Method: Study design: Descriptive research. We studied parents whose children had used one of the 11 sick child care facilities for sick children in Hiroshima City in 2014. A total of 156 parents consented to participate in the study. We investigated their usage situation of sick child care, perceived benefits of such care, and care-related requests in a quantitative and qualitative manner. Results: Both nuclear families consisting of the dual income parents and their children and single-mother households reported that their children (mean age: 2.46 years [SD: 1.77 years]) had used sick child care because of infectious diseases. Approximately 10% of the parents were using the fee reduction systems of sick child care intended for people with a low income. Parents viewed sick child care as beneficial both in early the health recovery of children, and as support for child raising and working. On the other hand, some parents left their children at home alone when sick child care was not available due to the limited number of sick child care facilities and an insufficient capacity to accept children. Some parents desired an increased number of care facilities, as well as a reduction in or subsidies for care fees. Conclusion: The results of this study suggest that, to ensure children’s health and safety, and support their parents for working and child raising, there is a need to increase the number of sick child care facilities along with expanding care services.

关键词： Benefits Child Raising Support Sick Child Care