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国际医学放射学杂志 2018年第4期 496-496页

作者： M.Yoshida T.Nakaura T.Inoue s.Tanoue s.takada D.Utsunomiya 周佳莹 Department of Radiology Amakusa Medical Center

目的本研究评估了3.0 T MR单次屏气的梯度自旋回波(GRAsE)序列在胆胰管成像(MRCP)的临床应用价值。将GRAsE和呼吸导航触发的3D快速自旋回波(3D TsE)的采集时间和影像质量进行比较。方法采用GRAsE和3D TsE连续检查了54例行MRCP的病人。... 详细信息

目的本研究评估了3.0 T MR单次屏气的梯度自旋回波(GRAsE)序列在胆胰管成像(MRCP)的临床应用价值。将GRAsE和呼吸导航触发的3D快速自旋回波(3D TsE)的采集时间和影像质量进行比较。方法采用GRAsE和3D TsE连续检查了54例行MRCP的病人。比较了胆总管(CBD)和肝脏的影像采集时间和对比噪声比(CNR)。由2位放射科医师用4分度表对整体影像质量、模糊、运动伪影和CBD可见度进行评分。采用配对t检验比较数据变量。结果GRAsE平均影像采集时间为3D TsE的95%(GRAsE:20 s;3D TsE:6 min 27 s)。GRAsE的CNR显著高于3D TsE(GRAsE:25.4±13.9与3D TsE:18.2±9.6,PsE的所有定量指标均优于3D TsE。结论单次屏气的GRAsE序列的3.0 T MRCP改善了CBD的CNR,且较常规3D TsE的MRCP的采集时间缩短了95%。

关键词：采集时间 TsE GRAsE 影像质量 MR

The Role of Jasmonates as Antibulbing substances in the Bulb Formation of Onion

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Agricultural Biotechnology 2024年第1期13卷 1-4,8页

作者： Noboru takada Atsushi saito Yuuki Matsuzuka Tatsushi Mochiduki Eriko Wakita Meng WANG Yasunori Koda Faculty of Agriculture and Life science Hirosaki University3Bunkyo-choHirosaki 036-8561Japan The United Graduate school of Agricultural science Iwate UniversityMoriokaIwate 020-8550Japan National Institute of Vegitable and Tea science National Agriculture and Food Research Organization360 KusawaAnoTsu 514-2392Japan Research Faculty of Agriculture Hokkaido UniversityKita-9 Nishi-9Kita-kuSapporo 060-8589Japan

Onion plants form spherical bulbs under long-day *** regulating bulb formation remain *** the course of chemical studies on the bulb formation,α-linolenic acid was isolated from onion extracts as an antibulbing substance,the amount of which was synchronized with the bulb *** allene oxide synthase inhibitor canceled the antibulbing activity ofα-linolenic acid,it was disclosed that jasmonic acid concerns this ***-activity-relationship study revealed that its(3R,7s)stereochemistry is necessary for showing its antibulbing *** is concluded that(3R,7s)-jasmonate derived fromα-linolenic acid actually participates in the regulation of bulb formation.

关键词： Onion(Allim cepa L.cv.Higuma) Isolation Bulb formation Antibulbing substance α-Linolenic acid Methyl jasmonate

Developing Reliable Digital Healthcare service Using semi-Quantitative Functional Resonance Analysis

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Computer systems science & Engineering 2023年第4期45卷 35-50页

作者： Zhengshu Zhou Yutaka Matsubara Hiroaki takada Graduate school of Informatics Nagoya UniversityNagoya464-8601Japan

since entering the era of Industry 4.0,the concept of Healthcare 4.0 has also been put forward and explored by *** to use Information Technology(IT)to better serve people’s healthcare is one of the most featured emerging directions in the academic *** important field of Healthcare 4.0 research is the reliability engineering of healthcare *** healthcare systems often affect the health and even life of their users,developers must be very cautious in the design,development,and operation of these healthcare systems and *** problems to be solved include the reliability of business process,system functions,and personal healthcare *** Functional Resonance Analysis Method(FRAM)has been applied in reliability engineering for safety-critical systems in available studies,using both qualitative and quantitative ***,the method has not been applied in the field of digital healthcare services ***,to narrow the gap,we present in this paper a semi-quantitative functional resonance analysis method to develop reliable healthcare services for ***,this paper has tried to improve the reliability design of the service-oriented architecture(sOA)of traditional insulin pump therapy by system thinking.

关键词： Reliability safety-critical system functional resonance analysis method systemigram

Tracking Pedestrians Under Occlusion in Parking space

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Computer systems science & Engineering 2023年第3期44卷 2109-2127页

作者： Zhengshu Zhou shunya Yamada Yousuke Watanabe Hiroaki takada Graduate school of Informatics Nagoya UniversityNagoya464-8601Japan Institute of Innovation for Future society Nagoya UniversityNagoyaAichiJapan

Many traffic accidents occur in parking *** of the serious safety risks is vehicle-pedestrian ***,with the increasing development of automatic driving and parking technology,parking safety has received significant attention from vehicle safety ***,pedestrian protection in parking lots still faces many *** example,the physical structure of a parking lot may be complex,and dead corners would occur when the vehicle density is *** lead to pedestrians’sudden appearance in the vehicle’s path from an unexpected position,resulting in collision accidents in the parking *** advocate that besides vehicular sensing data,high-precision digital map of the parking lot,pedestrians’smart device’s sensing data,and attribute information of pedestrians can be used to detect the position of pedestrians in the parking ***,this subject has not been studied and explored in existing *** this void,this paper proposes a pedestrian tracking framework integrating multiple information sources to provide pedestrian position and status information for vehicles and protect pedestrians in parking *** also evaluate the proposed method through real-world *** experimental results show that the proposed framework has its advantage in pedestrian attribute information extraction and positioning *** can also be used for pedestrian tracking in parking spaces.

关键词： Pedestrian positioning object tracking LiDAR attribute information sensor fusion trajectory prediction Kalmanfilter

strength evaluation of ultra-high strength steels and spot weld of automotive bodies

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China Welding 2014年第1期23卷 33-39页

作者： Kenji takada Kentaro sato Ninshu Ma Ninshu Ma JSOL corporation Japan.

Cockcrofi-Latham fracture criterion was applied to predict the fracture of high strength steels. A Marciniak-type biaxial stretching test of the four classes of high strength steels was carried out to measure the material damage limit of Cockcrofi-Latham fracture criterion. Furthermore, in order to improve the simulation accuracy, the local anisotropic parameters depending on the plastic strain （strain dependent model of anisotropy ） were measured by digital image correlation method and incorporated into Hill＇ s anisotropic yield condition by authors. To confirm the validity of Cockcrofi-Latham fracture criterion, the uniaxial tensile tests based on JIs No. 5 tensile specimen were performed. The force-displacement history and fracture happening strokes were predicted with high accuracy. Then, Cockcrofi-Latham fracture criterion was applied to predict the failure of four types of spot welded joints. To simulate the local bending and warping deformations around the heataffected zone, the discrete Kirchhoff triangle element was adapted. FEM results for four classes of high strength steels and four types of spot welded joints had a good correlation with experimental ones.

关键词： strength simulation ultra high strength steels spot weld fracture criterion

Thermal physiological response to local heating and cooling during sleep

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Frontiers of Architectural Research 2012年第1期1卷 51-57页

作者： Yu Hibino shuichi Hokoi Katsuaki Yoshida satoru takada Masanori Nakajima Miho Yamate KVOtO University Japan Kobe University Japan The Kansai Electric Power Co. Inc. Japan

For a healthy and productive life, good steep is essential, which has prompted studies on how comfortable sleep can be achieved. Understanding the relationship between thermal environment and physiological responses such as skin and core temperatures, and psychological responses such as thermal and sleep sensations is necessary to identify the most suitable thermal environment for steep. As an energy-saving and practical method of creating the most appropriate thermal environment for sleep, local heating or cooling is sometimes used, which takes into consideration the differences in local thermal responses. We performed this study to identify the most effective thermal environment for inducing comfortable sleep by identifying the physiological responses during sleep on the basis of sleep experiments conducted under local body heating or cooling conditions. We also used a human thermal model, which can be applied for predicting physiological responses. In the experiments, the feet of the subject were the primary area to be heated or cooled, which was achieved by installing a flexible duct with an outlet placed close to the subject＇s feet and inlet connected to an air conditioner. Differences in the fluctuation of body temperature and sleep stage depended on the airflow direction from the duct to the feet. When air was blown downward towards the feet, body temperature decreased and the subject was able to sleep well. Measured skin and core temperatures were calculated using an improved 27-node human thermal model that was originally developed for use in subjects who are not in steep. Although skin

关键词： sleep Thermal environ-ment Local air conditioning Physiologicalresponse Human thermal mode[

Near Real-Time Calculation of Ionospheric Electric Fields and Currents Using GEDAs

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Chinese Journal of Astronomy and Astrophysics 2003年第4期3卷 375-380页

作者： H.shirail Y.Kamide E.A.Kihn B.Hausman M.shinohara H.Nakata M.Isowa T.K.takada Y.Watanabe s.Masuda solar-Terrestrial Environment Laboratory Nagoya UniversityToyokawaAichi 442-8507Japan Now at Ichinoseki National College of Technology IchinosekiIwate 021-8511Japan NOAA National Geophysical Data Center BoulderColorado 80303-3328U.S.A. Department of Physics and Astronorny Rice UniversityHoustonTexas 77005-1892U.S.A. Now at Communications Research Laboratory KoganeiTokyo 184-8795Japan Now at Chiba University ChibaChiba 263-8522Japan

This paper presents the recent progress in our project of estimating near real-time electric fields and currents in the ionosphere through our computer system called the Geospace Environment Data Analysis system (GEDAs). We show a new technique in which data from ground magnetometers are collected by the system and used as input for the KRM and AMIE programs to calculate the distribution of ionospheric electric fields and currents, as well as of other ionospheric parameters, such as electric potential patterns. One of the goals of this project is to specify ionospheric processes. Examples of the near real-time calculation and the data flow of our scheme are presented.

关键词： data analysis-solar-terrestrial relations

Effect of Gaussian Noise Amplitude on Translation Error Estimated Using Double-Wayland Algorithm

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Journal of Mathematics and system science 2012年第8期2卷 482-488页

作者： Kazuki Yoshikawa Hiroki takada Graduate school of Engineering University of Fukui

The Wayland algorithm has been improved in order to evaluate the degree of visible determinism for dynamical systems that generate time series. The objective of this study is to show that the Double-Wayland algorithm can distinguish between time series generated by a deterministic process and those generated by a stochastic process. The authors conducted numerical analysis of the van der Pol equation and a stochastic differential equation as a deterministic process and a Ganssian stochastic process, respectively. In case of large s/N ratios, the noise term did not affect the translation error derived from time series data, but affected that from the temporal differences of time series. In case of larger noise amplitudes, the translation error from the differences was calculated to be approximately 1 using the Double-Wayland algorithm, and it did not vary in magnitude. Furthermore, the translation error derived from the differenced sequences was considered stable against noise. This novel algorithm was applied to the detection of anomalous signals in some fields of engineering, such as the analysis of railway systems and bio-signals.

关键词： Gaussian white noise Wayland algorithm delay time embedding space degree of visible determinism translation error VPE (van der Pol equation) sDE (stochastic differential equation).

Longitudinal Evaluation Nocturnal sleep Behaviors of Healthy and Well Developed Children Born Prematurely

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Open Journal of Pediatrics 2016年第1期6卷 48-52页

作者： Yoko Asaka satoshi takada Faculty of Health sciences Hokkaido University Sapporo Japan Kobe University Graduate school of Health sciences Kobe Japan

The aim of the study is to examine nocturnal sleep measures of healthy and well developed pre-term infants by birth weight when they were averaged 15 corrected months and became elementary school children. sleep measures were collected by actigraphs (Micro-mini RC, Ambulatory Monitoring Inc., New York, UsA). Nocturnal sleep quality of children born as extremely low birth weight (ELBW) was significantly inferior with that of children born as very low birth weight (VLBW) at 15 corrected months [number of night waking: 6.0 (4.5 - 8.0), ELBW 8.5 (7.0 - 10.3) (Z = 2.47, p sleep onset: VLBW 99.0 (73.0 - 115.0) min, ELBW 146.5 (94.8 - 171.3) min (Z = 2.89, p se measures did not show any significant differences by birth weight at second data collection period [number of night waking: VLBW 0.0 (0.0-1.0), ELBW 1.0 (0.0 - 2.5) (Z = —0.62, n.s.), wake after sleep onset: VLBW 16.0 (8.0 - 27.0) min, ELBW 15.0 (6.0 - 32.5) min (Z = 0.00, n.s.)]. It was assumed that nocturnal measures were affected by the birth weight at the age of 15 corrected months in ELBW infants, but could not predict the future sleep problems at this point.

关键词： Nocturnal sleep Longitudinal Evaluation Extremely Low Birth Weight Infant Actigraph