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Nano Research 2024年第8期17卷 7027-7038页

作者： Wenan Cai yuichiro Tanaka Xing Zhu Teruhisa Ohno Department of Applied Chemistry Faculty of EngineeringKyushu Institute of TechnologyKitakyushu 804-8550Japan College of Bioresources Chemical and Materials Engineering Shaanxi University of Science&TechnologyXi’an 710021China

Polymer carbon nitride(PCN)is widely used in ***,pristine PCN has disadvantages such as insufficient visible light absorption and low photogenerated carrier separation efficiency that greatly limited the photocatalytic *** a non-toxic metal,gallium has the potential to solve the defects of *** ions coordinated with nitrogen in carbon nitride to form Ga-N active sites and improved the photocatalytic *** doped potassium ions form a transmission channel for charge redistribution and transfer between adjacent layers,which is beneficial for better separation of photoexcited *** this study,a series of PCN co-doped with gallium and potassium(Ga-K-PCN)were *** experimental results indicated photocatalytic generation of hydrogen peroxide proceeds through the 2e−oxygen reduction reaction ***,Nyquist plots and photocurrent results further proved that the presence of Ga-N sites and potassium ion doping could significantly improve the separation/transfer of intra-planar and interlayer charge carriers and thus enhance photocatalytic *** Ga10-K3-PCN photocatalysts promoted yield of H_(2)O_(2),with reactivity at 28.2μmol/(g·h)and solar-to-chemical conversion efficiency at 0.64%,surpassed that of a typical photo-catalyst based on PCN(0.18%).

关键词： photocatalysis gallium oxygen reduction reaction H_(2)O_(2) production

Immunoadsorption therapy reduces oxidative stress in patients with dilated cardiomyopathy

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World Journal of Cardiovascular Diseases 2012年第4期2卷 305-312页

作者： Hiroki Kasai yuichiro kashima Atsushi Izawa Takeshi Tomita Yusuke Miyashita Jun Koyama Masafumi Takahashi Taku Yoshio Yoshikazu Yazaki Makoto Higuchi Uichi Ikeda Department of Cardiovascular Medicine Shinshu University School of Medicine Nagano Japan Department of Nephrology Shinshu University School of Medicine Nagano Japan Department of Rheumatology and Clinical Immunology Jichi Medical University Tochigi Japan Division of Bio-Imaging Jichi Medical University Tochigi Japan Division of Cardiology Matsumoto Medical Center Nagano Japan

Several literatures have reported that the elimination of autoantibodies by immunoadsorption (IA) therapy induced short- and long-term improvements in cardiac function of patients with dilated cardiomyopathy (DCM). We assessed whether reduction in oxidative stress was related to the mechanism underlying left ventricular functional benefit from IA. We studied 7 patients with DCM (New York Heart Association (NYHA) functional class III/IV). Autoantibodies were removed with IA by passing patients’ plasma over tryptophan columns. The level of anti-β1-adrenoreceptor (AR) autoantibodies was measured by enzyme- linked immunosorbent assay. The level of diacron- reactive oxygen metabolite (d-ROM) was determined as a marker of oxidative stress. During IA, the anti- β1-AR autoantibodies titers of all the patients decreased significantly from 27.8 ± 5.0 to 18.7 ± 5.5 U/ml (p < 0.01). IA induced the following hemodynamic improvements: cardiac index increased from 1.71 ± 0.40 to 1.97 ± 0.41 l/min/m2 and left ventricular ejection fraction (LVEF) increased from 22.8 ± 6.1 to 29.1±9.1% (p < 0.05). d-ROM level decreased significantly from 392.7 ±17.0 to 314.1 ± 22.0 Carratelli units (p < 0.05), and was negatively correlated with LVEF before and after IA therapy (r = -0.601, p < 0.05). The anti-β1-AR autoantibodies, LVEF and d- ROM returned to the baseline levels at 12 months after IA. In conclusion, oxidative stress reduction may be responsible for the beneficial effect of IA therapy in patients with DCM.

关键词： Autoantibody Immunoglobulin Plasmapheresis

Pulmonary artery diameter ratio as a prognostic indicator of congenital diaphragmatic hernia

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World Journal of Pediatric Surgery 2024年第1期7卷 20-25页

作者： yuichiro Miyake Hiroyuki Koga Shuko Nojiri Shunsuke Yamada Takanori Ochi Go Miyano Geoffrey J Lane Atsuyuki Yamataka Tadaharu Okazaki Department of Pediatric General and Urogenital Surgery Juntendo University School of MedicineBunkyo-kuTokyoJapan Department of Medical Technology Innovation Center Juntendo UniversityBunkyo-ku TokyoJapan Department of Pediatric Surgery Juntendo University Urayasu HospitalUrayasuChibaJapan

Background Following on from an earlier study published in 2008 about left pulmonary artery(LPA)flow measured on serial echocardiography being strongly prognostic in left-sided congenital diaphragmatic hernia(CDH)and the ratio of LPA to right pulmonary artery(RPA)diameters being a simple and reliable indicator for commencing nitric oxide(NO)therapy,the ratio of LPA:RPA diameters(PA ratio orPAR)was hypothesized to possibly reflect cardiopulmonary stresses accompanying CDH *** Subjects with isolated left-sided CDH treated between 2007 and 2020 at a single pediatric surgical center were recruited and classified according to *** obtained retrospectively for subject demographics,clinical course,LPA/RPA diameters,and PAR were compared between survivors and *** value of PAR for optimizing the prognostic value of PA diameter data in CDH were analyzed with receiver operating characteristic(ROC)curve *** Of 65 subjects,there were 54 survivors(82.3%)and 11 non-survivors(17.7%);7 of 11 non-survivors died before surgical repair could be *** PAR for survivors(0.851±0.152)was significantly higher than for non-survivors(0.672±0.108)(p=0.0003).Mean PAR for non-survivors was not affected by surgical *** of survivors were:LPA≥2 mm(n=52 of 54;mean PAR=0.866±0.146)and RPA≥3mm(n=46 of 54;mean PAR=0.857±0.152).Non-survivors with similar LPA and RPA diameters to survivors had significantly lower mean *** curve cut-off for PAR was *** with high PAR(≥0.762)required high-frequency oscillatory ventilation/NO less than subjects with low PAR(<0.762)(p=0.0244 and p=0.0485,respectively)and subjects with high PAR stabilized significantly earlier than subjects with low PAR(1.71±0.68 days vs 3.20±0.87 days)(p<0.0001).Conclusions PAR would appear to be strongly correlated with clinical outcome in CDH and be useful for planning management of cardiopulmonary instability in CDH.

关键词： hernia congenital diameters

Relationship between nutritional therapy and beneficial bacteria ratio in severe disease

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Journal of Acute Disease 2024年第1期13卷 26-30页

作者： Kento Nakayama Hiroyuki Koami yuichiro Sakamoto Advanced Emergency Care Center Saga University HospitalSaga 849-0851Japan

Objective:To evaluate relationship between changes in the beneficial bacteria in intensive care unit(ICU)patients and nutritional therapy ***:Ten patients aged≥18 years admitted to the ICU between January and December 2020,were *** enteral nutrition was defined as early achievement of target calorie intake through enteral *** ratio of beneficial bacteria at the first and second bowel movements after each patient’s admission was calculated and the patients were classified into the increase or decrease *** all patients,five each were in the increase and decrease *** investigated patient background,changes in sequential organ failure assessment(SOFA)and acute physiology and chronic health evaluation(APACHE)Ⅱscores,nutritional doses or methods,and clinical ***:No relationship was found between changes in the ratio of beneficial bacteria and changes in SOFA/APACHEⅡscores at the time of *** rate of good enteral nutrition was significantly higher in the increase group than in the decrease group(4/5 vs.0/5,P=0.01).Conclusions:An increase in beneficial bacteria may be significantly related to the early establishment of enteral *** the future,accumulating cases may make it possible to establish a new nutritional strategy for critically ill patients from an intestinal microbiota perspective.

关键词： Beneficial bacteria Enteral nutrition Parenteral nutrition Intensive care unit Good enteral nutrition Severe disease Nutritional therapy

Quality assessment of volunteered geographic information for outdoor activities:an analysis of OpenStreetMap data for names of peaks in Japan

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Geo-Spatial Information Science 2023年第3期26卷 333-345页

作者： Jun Yamashita Toshikazu Seto Nobusuke Iwasaki yuichiro Nishimura Faculty of Social and Cultural Studies Kyushu UniversityFukuokaJapan Faculty of Letters Komazawa UniversityTokyoJapan Sciences NAROInstitute for Agro-EnvironmentalTsukubaJapan Faculty of Letters Nara Women’s UniversityNaraJapan

Geographical studies of outdoor activities have increased in recent years with the rise in popularity of these activities worldwide,including in *** geographic information(VGI)is a key tool for organizing outdoor activities as it offers a means to determine the locational information and names of *** evaluate the quality of VGI,geospatial data generated by land survey agencies and other VGI are often utilized as reference ***,since these reference data may not be available,other methods are necessary to assure the quality of *** this study,we examined five trust indicators based on the inherent characteristics of VGI through an empirical case *** used mountain names extracted from OpenStreetMap in Japan as data because there were almost no other VGI in the *** a result,we isolated three trust indicators,namely versions,users,and tag corrections,to examine the thematic accuracy of VGI because these were the only statistically significant ***,we found that the prediction rate of thematic accuracy was very *** improve thematic accuracy,this study recommends using the most accurate versions,applying correctly given tags,and considering the motivations and characteristics of the VGI contributors.

关键词： Outdoor activities volunteered geographic information(VGI) OpenStreetMap(OSM) data quality assessment trust integrated usage

IDENTIFICATION OF STIFFNESS COEFFICIENTS OF LAMINATED COMPOSITE PLATES

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中国有色金属学会会刊：英文版 1997年第3期7卷 46-50页

作者： Wang, XC Shen, XP yuichiro, M Xu, BY N CHINA UNIV TECHNOL BEIJING 100041PEOPLES R CHINA TSING HUA UNIV DEPT MECH ENGNBEIJING 100084PEOPLES R CHINA IBARAKI UNIV DEPT ENGNHITACHIIBARAKI 316JAPAN

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ＩＤＥＮＴＩＦＩＣＡＴＩＯＮＯＦＳＴＩＦＦＮＥＳＳＣＯＥＦＦＩＣＩＥＮＴＳＯＦＬＡＭＩＮＡＴＥＤＣＯＭＰＯＳＩＴＥＰＬＡＴＥＳ①ＷａｎｇＸｉａｏｃｈｕｎ，ＳｈｅｎＸｉｎｐｕ，ＭａｓｕｄａＹｕｉｃｈｉｒｏ，ＸｕＢｉｎｇｙｅＮｏｒｔｈＣｈｉｎａＵｎｉｖｅ...

关键词： inverse analysis composite laminated plate stiffness coefficient

Investigation of Surge Behavior in a Micro Centrifugal Compressor

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Journal of Thermal Science 2006年第2期15卷 97-102页

作者： Shimpei MIZUKI yuichiro ASAGA Yushi ONO Hoshio TSUJITA Department of Mechanical Engineering Hosei University 3-7-2Kajino-choKoganei-shiTokyo Mitsubishi Heavy Industries Ltd. 1-1 Akunoura-machi Nagasaki-shi Nagasaki Department of Mechanical Engineering Hosei University 3-7-2 Kajino-cho Koganei-shi Tokyo

This paper reports the experimental and theoretical study of the surge occurred in prototyping an ultra micro centrifugal compressor. As the first step, the 10 times size model of an ultra micro centrifugal compressor having the 40 mm outer diameter was designed and manufactured. The detailed experimental investigations for the transient behavior of surge with several different values of B parameter were carded out. The experimental results during the surge were compared with those obtained by the non-linear lumped parameter theory in order to validate the effectiveness of the theoretical surge model for the micro centrifugal compressor. As a result, the quite different behavior of the surge appeared for the different values of B both in the experiment and in the analysis.

关键词： micro centrifugal compressor surge lumped parameter model

Surge Control of a Centrifugal Compression System by Using a Bouncing Ball

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Journal of Thermal Science 2008年第2期17卷 141-146页

作者： yuichiro Asaga Shimpei Mizuki Hoshio Tsujita Shinsuke Ohta Department of Mechanical Engineering Faculty of EngineeringHosei University Mitsubishi Heavy Industries Ltd.

The purpose of this study is to suppress the fluctuations of surge by a simple passive control method. A bouncing ball system with different weight of the balls was tested. As a result, the bouncing ball system suppressed mild surge without the deterioration of the performance characteristics, and moved the initiation point of surge toward the lower flow rate when the steel ball of 15mm outer diameter was used. The present system was effective to suppress the surge and to widen the stable operating range of a centrifugal compressor when the ball was chosen appropriately.

关键词： centrifugal compressor surge passive control bouncing ball

Femtosecond pulses cleaning by transient-grating process in Kerr-optical media

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Chinese Optics Letters 2011年第5期9卷 63-65页

作者： Kotaro Okamura yuichiro Kida Takayoshi Kobayashi Advanced Ultrafast Laser Research Center and Department of Engineering ScienceFaculty of Informatics and EngineeringDepartment of Engineering ScienceThe University of Electro-Communications International Cooperative Research Project (ICORP) Japan Science and Technology Agency Department of Electrophysics National Chiao Tung University Institute of Laser Engineering Osaka University

We use a transient-grating （TG） process in a Kerr bulk medium to clean a femtosecond laser pulse. Using the technique, the temporal contrast of the generated TG signal is improved by more than two orders of magnitude in comparison with the incident pulse in a 0.5-mm-thick fused silica plate. The laser spectrum is smoothed and broadened, and the pulse duration is shortened simultaneously. We expect to extend this technique to a clean pulse with broadband spectral bandwidth at a wide spectral range because it is a phase-matched process.

关键词： Electromagnetic pulse Fused silica Ultrafast lasers

Relative importance of tidal flats and artificial habitats for two spoonbill species and related interspecific differences

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Avian Research 2023年第3期14卷 317-325页

作者： Takehiko Shimizu Masayuki Senzaki yuichiro Fujioka Satoquo Seino School of Interdisciplinary Science and Innovation Kyushu UniversityMotooka 744Nishi-kuFukuoka819-0395Japan Graduate School of Environmental Science Hokkaido UniversityKita 10-jo Nishi 5-chome Kita-kuSapporoHokkaido060-0810Japan Faculty of Environmental Earth Science Hokkaido UniversityKita 10-jo Nishi 5-chome Kita-kuSapporoHokkaido060-0810Japan Faculty of Social and Cultural Studies Kyushu UniversityMotooka 744Nishi-kuFukuoka819-0395Japan Faculty of Engineering Kyushu UniversityMotooka 744Nishi-kuFukuoka819-0395Japan

Artificial/seminatural environments,such as aquacultural ponds,saltpans,and croplands,have recently been acknowledged as important habitats for coastal *** coastal waterbirds tend to use artificial habitats around tidal flats as roosting sites during high-tide,it remains unclear whether the importance of surrounding habitats relative to tidal flats varies among landscape types,seasons,species,or tidal *** Black-faced Spoonbill(Platalea minor)and Eurasian Spoonbill(***)are two closely related sympatric species in East Asia with narrow and wide distribution ranges and habitat requirements,*** therefore expect that both species will use surrounding artificial habitats across seasons at high tides,but Blackfaced Spoonbills will use them less frequently than Eurasian ***,we address these hypotheses in the Imazu tidal flat and its surrounding environments in southern *** investigated the habitat use and behavioral patterns of both species through route and behavioral surveys during the fall migration and wintering seasons in *** found that both species used surrounding habitats including artificial ones more frequently than the tidal flat regardless of the tidal condition or season,but spoonbills used these habitats more frequently in winter than in *** also found that Eurasian Spoonbills foraged in surrounding artificial habitats more frequently than Black-faced *** results not only demonstrate how coastal waterbirds exploit surrounding habitats relative to tidal flats but also suggest that the importance of surrounding habitats varies among species and *** study thus emphasizes that valuing and managing surrounding habitats in addition to tidal flats are key to conserving globally declining waterbirds.

关键词： Artificial habitat Behavior Black-faced Spoonbill Eurasian Spoonbill Habitat use Surrounding environment Species distribution model Tidal flat