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Prototyping low-cost automatic weather stations f.r natural disaster monitoring

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Digital Communications and Networks 2023年第4期9卷 941-956页

作者： Gabriel f.L.R.Bernardes Rogerio ishibashi Andre A.S.Ivo Valerio Rosset Bruno Y.L.Kimura Institute of.Science and Technology Federal University of Sao Paulo(ICT/UNIFESP)Sao Jose dos CamposSPBrazil Brazilian National Center f.r Monitoring and Early Warnings of.Natural Disasters(Cemaden) Sao Jose dos CamposSPBrazil

Weather events put human lives at risk mostly when people might occupy areas susceptible to natural *** Prof.ssional Weather Stations(PWS)in vulnerable areas is key f.r monitoring weather with reliable ***,such prof.ssional instrumentation is notably expensive while remote sensing f.om a number of.stations is *** imposes challenges on the large-scale weather station deployment f.r broad monitoring f.om large observation networks such as in Cemaden—The Brazilian National Center f.r Monitoring and Early Warning of.Natural *** this context,in this paper,we propose a Low-Cost Automatic Weather Station(LCAWS)system developed f.om Commercial Of.-The-Shelf.COTS)and open-source Internet of.Things(IoT)technologies,which provides measurements as reliable as a ref.rence PWS f.r natural disaster *** being automatic,LCAWS is a stand-alone photovoltaic system connected wirelessly to the Internet in order to provide real-time reliable end-to-end weather *** achieve data reliability,we propose an intelligent sensor calibration method to correct *** a 30-day uninterrupted observation with sampling in minute resolution,we show that the calibrated LCAWS sensors have no statistically signif.cant dif.erences f.om the PWS *** such,LCAWS has opened opportunities f.r reducing maintenance costs in Cemaden's observational network.

关键词： Wireless automatic weather station Low-cost weather instrumentation Natural disaster monitoring Intelligent sensor calibration Internet of.things

Ef.ect of.solid-solution strengthening on def.rmation mechanisms and strain hardening in medium-entropy V_(1-x)Cr_(x)CoNi alloys

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Journal of.Materials Science & Technology 2022年第13期108卷 270-280页

作者： Hyun Chung Dae Woong Kim Woo Jin Cho Heung Nam Han Yuji Ikeda Shoji ishibashi f.itz Körmann Seok Su Sohn Department of.Materials Science and Engineering Korea UniversitySeoul 02841South Korea Center f.r High Entropy Alloys Pohang University of Science and TechnologyPohang 37673South Korea Department of.Materials Science and Engineering and Research Institute of.Advanced Materials Seoul National UniversitySeoul 08826South Korea Institute f.r Materials Science University of StuttgartPfaffenwaldring 55Stuttgart 70569Germany Computational Materials Design Max-Planck-Institut für Eisenforschung GmbHMax-Planck-Strabe 1Düsseldorf 40237Germany Research Center f.r Computational Design of.Advanced f.nctional Materials(CD-f.at) National Institute of Advanced Industrial Science and Technology(AIST)TsukubaIbaraki 305-8568Japan Department of.Materials Science and Engineering Delft University of TechnologyMekelweg2Delft 2628 CDthe Netherlands

High-and medium-entropy alloys(HEAs and MEAs)possess high solid-solution *** investigations have been conducted on its impact on yield strength,however,there are limited reports regarding the relation between solid-solution strengthening and strain-hardening *** addition,no attempt has been made to account f.r the dislocation-mediated plasticity;most works f.cused on twinning-or transf.rmation-induced plasticity(TWIP or TRIP).In this work we reveal the role of.solidsolution strengthening on the strain-hardening rate via systematically investigating evolutions of.def.rmation structures by controlling the Cr/V ratio in prototypical V_(1-x)Cr_(x)CoNi *** the TWIP of.CrCoNi with the dislocation slip of.V_(0.4)Cr_(0.6)CoNi,the hardening rate of.CrCoNi was superior to slip-band ref.nements of.V_(0.4)Cr_(0.6)CoNi due to the dynamic Hall-Petch ***,as V content increased f.rther to V_(0.7)Cr_(0.3)CoNi and VCoNi,their rate of.slip-band ref.nement in V_(0.7)Cr_(0.3)CoNi and VCoNi with high solid-solution strength surpassed that of.*** it is generally accepted in conventional alloys that def.rmation twinning results in a higher strain-hardening rate than dislocation-mediated plasticity,we observed that the latter can be predominant in the f.rmer under an activated huge solid-solution strengthening *** high solid-solution strength lowered the cross-slip activation and consequently retarded the dislocation rearrangement rate,i.e.,the dynamic *** delay in the hardening rate decrease,theref.re,increased the strain-hardening rate,results in an overall higher strain-hardening rate of.V-rich alloys.

关键词： Medium-entropy alloy Tensile property Solid-solution strength Strain-hardening rate Stacking f.ult energy

Low Resistive TiO2Deposition by LPCVD Using TTIP and Nbf.lt;sub>5in Hydrogen-Ambient

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Journal of.Crystallization Process and Technology 2015年第1期5卷 15-23页

作者： Satoshi Yamauchi Kazuhiro ishibashi Sakura Hatakeyama Department of.Biomolecular f.nctional Engineering Ibaraki University Hitachi Japan

Low resistive TiO2 layer was deposited by low pressure chemical vapor deposition (LPCVD) at pressure around 0.25 Pa using titanium-tetra-iso-propoxide (TTIP) and Nbf. in H2-ambient. Acti-vation energy f.r the deposition rate on the temperature was signif.cantly decreased to 120 kJ/mol as compared with 228 kJ/mol f.r the deposition in H2 without Nbf.. The deposition rate linearly increased with Nbf. supply rate but gradually decreased with H2 supply rate indicated that f.on the deposition surf.ce acts as catalyst f.r TTIP-dissociation but is non-activated by hydrogen. Resistivity of.the layer was decreased by Nbf. supply depending on the deposition temperature with the activation energy of.319 kJ/mol, whereas the energy was 244 kJ/mol f.r the layer deposited in H2 without Nbf.. The dependence of.resistivity on Nbf.. and H2 supply rates suggested that the doping should be perf.rmed by suf.icient Nbf. and H2 supply rate to improve the crystallinity. As a result of.the optimization, the resistivity was successf.lly reduced to 5 × 10-2 Ω·cm. Optical transmission spectra in UV-Vis region indicated that signif.cant absorption observed f.r the layer deposited in H2 was notably decreased by using Nbf.. The improved optical property was better than that f.r the layer deposited in O2-ambient.

关键词： LPCVD-TiO2 H2-Ambient Nb and f Doping Low-Resistive TiO2 Optical Transmittance

Low Pressure Chemical Vapor Deposition of.Nb and f.Co-Doped TiO2Layer

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Journal of.Crystallization Process and Technology 2014年第2期4卷 79-88页

作者： Satoshi Yamauchi Shouta Saiki Kazuhiro ishibashi Akie Nakagawa Sakura Hatakeyama Department of.Biomolecular f.nctional Engineering Ibaraki University Hitachi Japan

Nb and f.co-doped anatase TiO2 layers were deposited by low pressure chemical vapor deposition (LPCVD) at pressure of.3 mtorr using titanium-tetra-iso-propoxide (TTIP), O2 and Nbf. as precursor, oxidant and dopant respectively. Resistivity beyond 100 Ωcm f.r undoped layer was decreased with increasing supply of.the dopant and dependent on the supply ratio of.O2 to TTIP and decreased to 0.2 Ωcm by the optimization. X-ray f.uorescent spectroscopy showed Nb-content in the layer was decreased with the O2-supply ratio. X-ray photo-spectroscopy indicated that f.substituted O-site in TiO2 by O2-supply but carbon-contamination and f.missing substitution in the O-site were signif.cantly increased by excess O2-supply. f.rther, it was suggested that the substituted f.played an important role to reduce resistivity without signif.cant contribution of.O-vacancies. XRD spectra showed f.missing substitution in the O-site degraded the crystallinity.

关键词： LPCVD Anatase-TiO2 Nb and f Co-Doping Low-Resistive TiO2

肝内微泡聚集形成的信号强度对鉴别特发性门静脉高压与肝硬化的作用

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国际医学放射学杂志 2009年第5期32卷 502-503页

作者： H.Maruyama H.ishibashi M.Takahashi f.Imazeki O.Yokosuka 唐光健 Department of.Medicine and Clinical Oncology Chiba University Graduate School of Medicine1-8-1InohanaChuou-kuChiba 260-8670Japan

目的研究使用对比剂一增强超声（US）鉴别特发性门静脉高压（IPH）与肝硬化的可能性。材料与方法本研究得到学术委员会批准并取得书面知情同意书。23例[平均年龄（60±11）岁，37-85岁1活检证实的肝硬化病人与10例[平均年龄（65±8）岁... 详细信息

目的研究使用对比剂一增强超声（US）鉴别特发性门静脉高压（IPH）与肝硬化的可能性。材料与方法本研究得到学术委员会批准并取得书面知情同意书。23例[平均年龄（60±11）岁，37-85岁1活检证实的肝硬化病人与10例[平均年龄（65±8）岁，51～78）岁]IPH病人被纳入研究，27例[平均年龄（46±17）岁，26～82岁1无任何肝局灶性病变或门静脉血栓的病人作为对照。

关键词：肝硬化病人门静脉高压特发性信号强度鉴别聚集微泡肝内

The Signif.cance of.the Expression of.f.XO31 in Gastric Cancer

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Journal of.Cancer Therapy 2013年第1期4卷 75-79页

作者： Tomoya Sudo Ryunosuke Kogo Naohiro Nishida Keisuke Takahahi Genta Sawada Masahisa ishibashi Junji Kurashige Ryutaro Uchi Tae Matsumura Hiroki Ueo Kousuke Mima Sayuri Akiyoshi Keishi Sugimachi Kouhei Shibata Hiromasa f.jita Kazuo Shirouzu Masaki Mori Koshi Mimori Department of.Surgery Kurume University School of Medicine Kurume Japan Department of.Surgery Medical Institute of Bioregulation Kyushu University Beppu Japan Department of.Surgery Medical Institute of Bioregulation Kyushu University Beppu Japan&Department of Surgery Kurume University School of Medicine Kurume Japan Department of.Surgical Oncology Graduate School of Medicine Osaka University Osaka Japan.

Loss of.Heterozygosity (LOH) is commonly considered to be one of.a reason when some genes lose their f.nction. Numbers of.tumor suppressor genes are existing on the LOH lesion and chromosome 16q24 had been reported as a LOH region in gastric cancer. Little is known about what kind of.tumor suppressor genes locates around the position. f.box protein, (f.XO31) is a candidate tumor suppressor gene encoded in chromosome 16q24.3 and LOH of.the gene was reported in breast cancer, hepatocellular carcinoma and ovarian cancer but the status of.f.XO31 was not analyzed in gastric cancer so f.r. One hundred twenty-seven pairs of.tumor and corresponding normal tissue specimens collected f.om gastric cancer patients who underwent gastrectomy. Total RNAs were extracted f.om those samples and the expression of.f.XO31 was investigated using real time quantitative RT-PCR analysis. Patients were classif.ed into f.XO31 high expression group and low expression group. Clinicopahological f.ctors were compared between the two groups and importance of.f.XO31 was investigated. The standardized expression of.f.XO31 was not signif.cantly dif.erent between tumor (0.43 ± 0.46) and the corresponding 0.49 ± 0.55 in normal tissue (p = 0.39). Two years survival rate was 77% in f.XO31 high expression group and 54% in low expression group however the chance of.survival rate of.high expression group was dropped in 5 years (Wilcoxon p = 0.01). Clinicopathological f.ctors were compared between the two groups and peritoneal dissemination was observed signif.cantly higher in f.XO31 low expression group than did in high expression group (p = 0.0398). In order to predict existence of.peritoneal dissemination of.gastric cancer bef.re surgery, f.XO31 may become a f.vorite marker f.r the low risk of.peritoneal dissemination.

关键词： f.XO31 LOH Gastric Cancer

小剂量放疗和抗甲状腺药物诱发的系统性脉管炎可导致放射性视网膜病变

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世界核心医学期刊文摘（眼科学分册） 2005年第10期1卷 55-55页

作者： Sonoda K.-H. Yamamoto M. ishibashi T. 陈立军 Department of.phthalmol ogy Graduate School of Medical Sciences Kyushu University 3-1-1 Maidashi Hi gashi-ku Fukuoka 812-8582Japan

Background: We report on a patient with Graves’disease with radiation retinop athy caused by low-dose irradiation and antithyroid drug-induced antineutrophi l cytoplasmic antibody (ANCA)-positive vasculitis. Case: A 38-year-old woman with Graves’disease presented with bilateral blurred vision, microaneurysms, te langiectasia, and macular edema. The patientwas examined by ophthalmoscopy and f.luorescein angiography, and radiation retinopathywas diagnosed. Observations: Th e patient had been treated with low-dose irradiation f.r her Graves’ophthalmop athy a f.w years earlier. She also had ANCA-positive vasculitis induced by the antithyroid drug (propylthiouracil, PTU) that had been prescribed f.r her at tha t time. Because of.multiple avascular areas on both retinas, she was treated by intensive retinal photocoagulation to control progressive retinopathy. Conclusio ns: The radiation doses used to treat Graves’disease ophthalmopathy are low. Ne vertheless, there is still a risk of.radiation retinopathy developing in patient s with PTU-induced ANCA-positive vasculitis.

关键词：抗甲状腺药物双眼视物模糊眼视网膜血管造影检查丙基硫氧嘧啶荧光素黄斑水肿视网膜光凝微动脉瘤毛细血管扩张

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肝纤维化分级肝内微泡聚集的超声显示

国际医学放射学杂志 2012年第4期 397-397页

作者： H. ishibashi H. Maruyama M.Takahashi T. Shimada H. Kamesaki K. f.jiwara 唐光健 Department of.Medicine and Clinical Oncology Chiba University Graduate School of Medicine1 -8 -1 Inohana Chuou -ku Chiba 260-8670 Japan

摘要目的评价基于氟正丁烷增强的超声对肝纤维化分级的可行性。方法202例病人被纳入此项前瞻性研究,包括主研究(对照33例;f.-1:35例;f.:26例;f.:23例;肝硬化:29例)与后续研究(对照:16例;f.-1:7例;f.:20例;f.:7例;肝硬化:6例)。对照增强... 详细信息

摘要目的评价基于氟正丁烷增强的超声对肝纤维化分级的可行性。方法202例病人被纳入此项前瞻性研究,包括主研究(对照33例;f.-1:35例;f.:26例;f.:23例;肝硬化:29例)与后续研究(对照:16例;f.-1:7例;f.:20例;f.:7例;肝硬化:6例)。对照增强表现与f.B4[年龄×AST/(血小板计数×ALT0.5)]对纤

关键词：肝脏纤维化硬化超声对比剂