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( Yohei Ito ) 고려대학교 법학연구원 2019 The Asian Business Lawyer Vol.24 No.-
This article provides overview of the recent Law Reform on the Commercial Code and the Civil Code of Japan, specifically on the revision of extinctive prescription for collision claims and validity of the Time Extension Agreement for various maritime claims.
The EEG Analysis Method for Obtaining the Feeling
Yohei Tomita,Shin-ichi Ito,Yasue Mitsukura 제어로봇시스템학회 2008 제어로봇시스템학회 국제학술대회 논문집 Vol.2008 No.10
The electroencephalogram (EEG), the brain activity of neurons in the brain, is used to record brain activity for many purposes. It also changes depends on mental conditions because mental conditions are generated in the brain. In this study, we try to estimate the mental conditions by observing the EEG patterns. The EEG data caused by mental changes is obtained as giving the subjects animal assisted therapy. The method for estimation is AdaBoosting as the neural network. We set the input vector as EEG changes and output vector is set as mental changes. Subjects are 25 people: 19 males and 6 females (age: 21-24 years old). Previous study reveals the correlation between the EEG and the activeness, and between the EEG and the tiredness. Therefore, in this paper, we try to estimate these mental parameters by the EEG at the first step.
Effects of Intrinsic Noise in Temperature-compensated Models for Circadian Rhythms
Sho Ichikawa,Yohei Ito,Gen Kurosawa,Kenko Uchida 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
Circadian rhythms, which are observed in most of organisms, e.g. bacteria, fungi, plants, and animals, are self-sustained oscillations with about 24 hours period and a remarkable temperature compensation property. By using the temperature-compensated and robust temperature-compensated deterministic models for circadian rhythms, we perform the stochastic simulations based on the Gillespie’ method by changing temperature over a wide range, and discuss how the deterministic temperature compensation properties fluctuate over the range of temperature in the stochastic setting reflecting the intrinsically noisy environments. In order to strengthen the inference from the stochastic simulations, we also execute a qualitative analysis based on the linear noise approximation.
Thermal rectification of asymmetrically-defective materials
Hiroyuki Hayashi,Yohei Ito,Koji Takahashi 대한기계학회 2011 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.25 No.1
We conducted numerical simulations of heat conduction in one-dimensional (1D) nonlinear lattices to reveal the mechanism of thermal rectification of asymmetrically-defective materials. A decreased spring constant simulates the defective lattice and the obtained temperature profile suggests a thermal resistance existing at the interface of two linked segments with different spring constants. Our numerical results suggest that the thermal rectification of two-segment system is dependent on the spring constant and temperature gradient. Introducing the estimated phonon band, most of the rectification mechanisms are clearly explained and performance limit as a thermal rectifier is found for the defective/pristine materials.
Present Status of Endoscopic Submucosal Dissection for Non-Ampullary Duodenal Epithelial Tumors
Naomi Kakushima,Masao Yoshida,Yohei Yabuuchi,Noboru Kawata,Kohei Takizawa,Yoshihiro Kishida,Sayo Ito,Kenichiro Imai,Kinichi Hotta,Hirotoshi Ishiwatari,Hiroyuki Matsubayashi,Hiroyuki Ono 대한소화기내시경학회 2020 Clinical Endoscopy Vol.53 No.6
Prediction of histology by endoscopic examination is important in the clinical management of non-ampullary duodenal epithelial tumors (NADETs), including adenoma and adenocarcinoma. The use of a simple scoring system based on the findings of white-light endoscopy or magnified endoscopy with narrow-band imaging is useful to differentiate between Vienna category 3 (C3) and C4/5 lesions. Less invasive endoscopic resection procedures, such as cold snare polypectomy, are quick to perform and convenient for small (<10 mm) C3 lesions. Neoplasms with higher grade histology, such as C4/5 lesions, should be treated by endoscopic mucosal resection (EMR), endoscopic submucosal dissection (ESD), or surgery. Although EMR often requires piecemeal resection, the complication rate is acceptable. Excellent complete resection rates could be achieved by ESD; however, it remains a challenging method considering the high risk of complications. Shielding or closure of the ulcer after ESD is effective at decreasing the risk of delayed bleeding and perforation. Laparoscopic endoscopic cooperative surgery is an ideal treatment with a high rate of en bloc resection and a low rate of complications, although it is limited to high-volume centers. Patients with NADETs could benefit from a multidisciplinary approach to stratify the optimal treatment based on endoscopic diagnoses.
Individual Identification by Gait Vibration Data Transmitted Floor
Yuichi Nakamura,Kazuki Ito,Tatsuo Hasegawa,Shin Itami,Yohei Saika,Masahiro Nakagawa 제어로봇시스템학회 2016 제어로봇시스템학회 국제학술대회 논문집 Vol.2016 No.10
The establishment of variety methods in the individual identification technology is desirable. In this study, it is considered that the method of individual identification from vibration data generated in gait. In the walking motion, the unique information such as the individual’s body type and habit is contained. It is assumed that the unique information is reflected in the gait vibration data transmitted in the floor. The potential for application to individual identification is shown by extracting one step and analyzing the unique information from the gait vibration data. The Adaboost method is applied to the extraction of one step of the walking. In order to represent the characteristics of each individual and analyzed using the Principal Component Analysis.
Kazuaki Oyake,Yasuto Baba,Yuki Suda,Jun Murayama,Ayumi Mochida,Yuki Ito,Honoka Abe,Kunitsugu Kondo,Yohei Otaka,Kimito Momose 대한재활의학회 2021 Annals of Rehabilitation Medicine Vol.45 No.4
Objective To examine the relationship between the time constant of oxygen uptake kinetics during the onset of exercise (τVO2) estimated from a single exercise bout and that obtained from three averaged exercise bouts in individuals with stroke. Methods Twenty participants with stroke performed three bouts of a constant-load pedaling exercise at approximately 80% of the workload corresponding to the ventilatory threshold to estimate τVO2. The VO2 data from the first trial of three bouts were used to estimate τVO2 for a single bout. Additionally, data collected from three bouts were ensemble-averaged to obtain τVO2 for three averaged bouts as the criterion. Results There was a very high correlation between τVO2 for a single bout (34.8±14.0 seconds) and τVO2 for three averaged bouts (38.5±13.4 seconds) (r=0.926, p<0.001). However, τVO2 for a single bout was smaller than that for three averaged bouts (p=0.006). Conclusion τVO2 for a single bout could reflect the relative difference in τVO2 for three averaged bouts among individuals with stroke. However, it should be noted that τVO2 for a single bout may be underestimated compared to τVO2 for three averaged bouts.