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Electrical Stimulation in Addition to Passive Exercise Has a Small Effect on Spasticity and Range of Motion in Bedridden Elderly Patients: A Pilot Randomized Crossover Study

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Health 2019年第8期11卷 1072-1086页

作者： Hideki Kataoka Shunpei Nakashima Hideki Aoki Kyo Goto Junichiro Yamashita yuichiro honda Yasutaka Kondo Tatsuya Hirase Junya Sakamoto Minoru Okita Department of Rehabilitation Nagasaki Memorial Hospital Nagasaki Japan Department of Physical Therapy Science Nagasaki University Graduate School of Biomedical Sciences Nagasaki Japan Department of Rehabilitation Nagasaki University Hospital Nagasaki Japan Department of Rehabilitation Nagasaki Genbaku Hospital Nagasaki Japan Institute of Biomedical Sciences Nagasaki University Nagasaki Japan

Purpose: Belt electrode skeletal muscle electrical stimulation (B-SES) can stimulate large portions of muscles including deep sites without localisation of the stimulation area. The purpose of this study is to investigate both immediate treatment effects of B-SES and long-term treatment effects of B-SES with passive exercise on range of motion (ROM) and muscle tone of lower extremities in bedridden elderly patients. Methods: Outcome measures before and after B-SES treatment alone (4 Hz, 20 min, both lower extremities) were examined for the immediate effect. Outcome measures were: ROM and Modified Ashworth scale (MAS) of hip flexion and adduction;knee flexion and extension;and knee joint distance at position of flexion abduction in hip (distance of knee). A randomized crossover trial was conducted to examine the long-term effect of adding B-SES to passive exercise on ROM and MAS. Results and Discussion: The immediate effect study had 18 patients. ROM and MAS of 4 joint angles in 2 joints and distance of knee significantly improved after B-SES treatment. The long-term effect study had 11 patients. Friedman test revealed ROM and MAS of 4 joint angles in 2 joints and distance of knee significantly improved during B-SES intervention but not control intervention. B-SES in addition to passive stretch has a more statistically significant effect on contracture and spasticity in large portions of the lower extremities of bedridden elderly patients than passive stretching alone. Conclusions: We consider B-SES a useful tool to improve the ROM in lower extremities of bedridden patients.

关键词： Bedridden Patients Belt Electrode Skeletal Muscle Electrical Stimulation Lower Extremity Muscle Tone Restriction of Range of Joint Motion

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Characterization of peach tree crown by using high-resolution images from an unmanned aerial vehicle

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Horticulture Research 2018年第1期5卷 22-31页

作者： Yue Mu yuichiro Fujii Daisuke Takata Bangyou Zheng Koji Noshita Kiyoshi honda Seishi Ninomiya Wei Guo International Field Phenomics Research Laboratory Institute for Sustainable Agro-ecosystem ServicesThe University of Tokyo1-1-1 Midori-choNishi-TokyoTokyo188-0002Japan Research Institute for Agriculture Okayama Prefectural Technology Center for AgricultureForestry and Fisheries1174-1 KodaokiAkaiwaOkayama709-0801Japan Fukushima University 1 KanayagawaFukushimaFukushima960-1248Japan CSIRO Agriculture and Food Queensland Bioscience Precinct306 Carmody RoadSt.LuciaQLD4067Australia JST PRESTO Kawaguchi Center Building4-1-8 HonchoKawaguchiSaitama332-0012Japan Graduate School of Agricultural and Life Sciences The University of Tokyo1-1-1 YayoiBunkyoTokyo113-8657Japan International Digital Earth Applied Science Research Center Chubu University1200 MatsumotochoKasugaiAichi-ken487-8501Japan

In orchards, measuring crown characteristics is essential for monitoring the dynamics of tree growth and optimizing farm management. However, it lacks a rapid and reliable method of extracting the features of trees with an irregular crown shape such as trained peach trees. Here, we propose an efficient method of segmenting the individual trees and measuring the crown width and crown projection area (CPA) of peach trees with time-series information, based on gathered images. The images of peach trees were collected by unmanned aerial vehicles in an orchard in Okayama, Japan, and then the digital surface model was generated by using a Structure from Motion (SfM) and Multi-View Stereo (MVS) based software. After individual trees were identified through the use of an adaptive threshold and marker-controlled watershed segmentation in the digital surface model, the crown widths and CPA were calculated, and the accuracy was evaluated against manual delineation and field measurement, respectively. Taking manual delineation of 12 trees as reference, the root-mean-square errors of the proposed method were 0.08 m (R^(2) = 0.99) and 0.15 m (R^(2) = 0.93) for the two orthogonal crown widths, and 3.87 m2 for CPA (R^(2) = 0.89), while those taking field measurement of 44 trees as reference were 0.47 m (R^(2) = 0.91), 0.51 m (R^(2) = 0.74), and 4.96 m2 (R^(2) = 0.88). The change of growth rate of CPA showed that the peach trees grew faster from May to July than from July to September, with a wide variation in relative growth rates among trees. Not only can this method save labour by replacing field measurement, but also it can allow farmers to monitor the growth of orchard trees dynamically.

关键词： crown tree watershed

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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

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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

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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

ＩＤＥＮＴＩＦＩＣＡＴＩＯＮＯＦＳＴＩＦＦＮＥＳＳＣＯＥＦＦＩＣＩＥＮＴＳＯＦＬＡＭＩＮＡＴＥＤＣＯＭＰＯＳＩＴＥＰＬＡＴＥＳ①ＷａｎｇＸｉａｏｃｈｕｎ，ＳｈｅｎＸｉｎｐｕ，ＭａｓｕｄａＹｕｉｃｈｉｒｏ，ＸｕＢｉｎｇ... 详细信息

ＩＤＥＮＴＩＦＩＣＡＴＩＯＮＯＦＳＴＩＦＦＮＥＳＳＣＯＥＦＦＩＣＩＥＮＴＳＯＦＬＡＭＩＮＡＴＥＤＣＯＭＰＯＳＩＴＥＰＬＡＴＥＳ①ＷａｎｇＸｉａｏｃｈｕｎ，ＳｈｅｎＸｉｎｐｕ，ＭａｓｕｄａＹｕｉｃｈｉｒｏ，ＸｕＢｉｎｇｙｅＮｏｒｔｈＣｈｉｎａＵｎｉｖｅ...

关键词： inverse analysis composite laminated plate stiffness coefficient

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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

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A single atom photocatalyst co-doped with potassium and gallium for enhancing photocatalytic hydrogen peroxide synthesis

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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

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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

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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

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Prediction of return of spontaneous circulation in outof-hospital cardiac arrest with non-shockable initial rhythm using point-of-care testing: a retrospective observational study

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World Journal of Emergency Medicine 2023年第2期14卷 89-95页

作者： Kota Shinada Hiroyuki Koami Ayaka Matsuoka yuichiro Sakamoto Department of Emergency and Critical Care Medicine Faculty of MedicineSaga UniversitySaga CitySaga Prefecture 849-8501Japan Division of Translational Research in Intensive Care Medicine Faculty of MedicineSaga UniversitySaga CitySaga Prefecture 849-8501Japan

BACKGROUND:Out-of-hospital cardiac arrest(OHCA) is a public health concern, and many studies have been conducted on return of spontaneous circulation(ROSC) and its prognostic *** thromboelastometry(ROTEM?), a point-of-care testing(POCT) method, has been useful for predicting ROSC in patients with OHCA, but very few studies have focused on patients with non-shockable rhythm. We examined whether the parameters of POCT could predict ROSC in patients with OHCA and accompanying non-shockable ***:This is a single-center, retrospective observational study. Complete blood count,blood gas, and ROTEM POCT measurements were used. This study included patients with nontraumatic OHCA aged 18 years or older who were transported to the emergency department and evaluated using POCT between January 2013 and December 2021. The patients were divided into the ROSC and non-ROSC groups. Prehospital information and POCT parameters were compared using receiver operating characteristic(ROC) curve analysis, and further logistic regression analysis was ***:Sixty-seven and 135 patients were in the ROSC and non-ROSC groups,respectively. The ROC curves showed a high area under the curve(AUC) for K^(+) of 0.77(95%confidence interval [CI]:0.71–0.83) and EXTEM amplitude 5 min after clotting time(A5) of 0.70(95%CI:0.62–0.77). The odds ratios for ROSC were as follows:female sex 3.67(95%CI:1.67–8.04);K^(+)0.64(95%CI:0.48–0.84);and EXTEM A5 1.03(95%CI:1.01–1.06).CONCLUSION:In OHCA patients with non-shockable rhythm, K^(+) level and the ROTEM parameter EXTEM A5 may be useful in predicting ROSC.

关键词： Rotational thromboelastometry Blood coagulation disorders Extrinsic pathway Potassium

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