Knowledge Discovery and Data Mining : Status of Projects in Japan

Koda, Masato 한국전문가시스템학회 1998 학술대회 Vol.2 No.1

Inhibition of Immediate Hypersensitivity Reaction by a New drug , N - ( 3` , 4` - dimenthoxycinnamoyl ) Anthranilic acid ( N - 5` , Tranilast )

( Akihide Koda ) 대한천식 및 알레르기학회 ( 구 대한알레르기학회 ) 1983 추계학술대회 초록집 Vol.1983 No.-

Relaxation dynamics and fragility during liquideglass transitions of poly(propylene glycol)s

Shota Koda,Tomohiko Shibata,박인성,Seiji Kojima 한국물리학회 2015 Current Applied Physics Vol.15 No.7

The acoustic and thermal properties of the liquideglass transitions of propylene glycol and its oligomers, poly (propylene glycol)s, were studied by temperature modulated DSC and Brillouin scattering. The fragility indices were determined from Angell plots using the observed modulation frequency dependence of the complex heat capacity. The variation in the glass transition temperatures is discussed on the basis of the free volume theory. The relaxation time of the structural relaxation obeys the VogeleFulcher law, and its high frequency end is in good agreement with the result of the dielectric measurement in the literature. The correlation between the observed thermal expansion coefficients and the glass transition temperature is discussed based on the free volume theory. The sound velocity and attenuation were accurately determined as a function of the temperature by Brillouin scattering by combination with the refractive index measurement. The relaxation dynamics were discussed by considering the relaxation from segmental motions. All of these physical properties were discussed based on the third-order anharmonicity and the Grüneisen parameter.

Simple and Low Power Highly Sensitive Frequency Demodulator Circuit for 10-Gb/s Transmission System for Labeling Signal

Natsuyuki Koda,Furuichi Kosuke,Hiromu Uemura,Hiromi Inaba,Keiji Kishine 대한전자공학회 2017 Journal of semiconductor technology and science Vol.17 No.6

This paper proposes a simple and low power highly sensitive frequency demodulator. In the previous work, we proposed a multiplex communication system that transmits additional data by using a frequency modulation technique and the proposed circuit provided highly sensitive characteristics on frequency demodulation. However, with this configuration, there is the problem that the power consumption and the number of control points increase. Therefore, in this paper, we propose a simple and lower power circuit configuration. We investigated the characteristics of these frequency demodulators using a prototype demodulation system consisting of an FPGA and discrete devices. Compared with the delay detection circuit, the proposed simple and lower power demodulation system, which showed the same output characteristics as the conventional sensitive demodulator, successfully detected about twice the detection data than the delay detection circuit did.

Attitudes toward Admittance of Animals in General to Hospitals in Japan :Comparison with Guide Dogs

Naoko Koda 아시아장애사회학회 2008 아시아장애사회학연구 Vol.7 No.-

Pet animals and guide dogs contribute greatly to the welfare of humans. However, there are many cases whereby these animals are refused admission to public facilities in Japan. Visually impaired people have been permitted to use public facilities along with their guide dogs. On the other hand, there has been no official regulation regarding various programs using pets, such as during animal assisted therapy/activity. This study involved a questionnaire survey ofthe attitudes toward the acceptance of animals in general and guide dogs in a hospital of literature students, zoology students, nursing students, and nurses. The admittance rate of animals in general was lower in all participant groups compared to guide dog admittance. In terms of the admittance of animals in general, more zoology students and less nurses would admit them. There was a similar tendency whereby medical-related participants would hesitate to allow animals into a hospital. In the participants who would allow the admittance of animals in general, significantly more participants had kept dogs. On the other hand, there was no significant relation between the admittance of guide dogs and dog-owning experiences. Concerns about negative attitudes from other hospital users and hygiene were the second most frequent reasons for the refusal ofboth animals in general and guide dogs. In the case of animals in general, more medical-related participants tended to be concerned about negative attitudes from other hospital users, and participants as hospital users were less concerned. The differences among the participant groups were clearer compared with those in the case of guide dogs.

모바일을 이용한 스포츠콘텐츠 수용의도에 관한 연구

고대선(KoDae-Sun) 한국체육학회 2019 한국체육학회지 Vol.58 No.4

모바일 시장의 확장과 관련된 연구의 중심에는 모바일 서비스와 콘텐츠가 존재한다. 이는 모바일 이용자들의 요구에 부합하는 서비스나 콘텐츠가 필요하다는 것을 의미한다. 새로운 콘텐츠 서비스는 모바일 사용이 많은 젊은 층의 요구를 고려한 연구가 필요하다. 또한 스포츠콘텐츠 수용의도를 파악하기 위한 연구가 필요한 실정이다. 따라서 본 연구목적은 모바일 이용이 많은 대학생들의 스포츠콘텐츠 특성, 서비스유용성, 사용용이성 그리고 사용의도의 관계를 규명하는 것이다. 이와 같은 연구목적을 달성하기 위해 자료수집은 서울지역 대학 4군데를 선정하여 총 311부의 자료를 실제 분석에 사용하였다. 통계처리는 탐색적 요인분석, 확인적 요인분석, 신뢰도, 구조방정식을 사용하였다. 따라서 결과는 다음과 같다. 첫째, 즉시접속성은 사용용이성에 유의한 영향을 미치는 것으로 나타났다. 둘째, 상황의존성은 서비스유용성과 사용용이성에 유의한 영향을 미치는 것으로 나타났다. 셋째, 서비스유용성은 사용의도에 유의한 영향을 미치는 것으로 나타났다. 넷째, 사용용이성은 사용의도에 유의한 영향을 미치는 것으로 나타났다. Mobile services and contents exist central study related to the expansion of mobile market. This means that mobile service and contents that meet the needs of mobile users are needed. The new content service needs to be studied considering the needs of the young people who are using mobile. Indeed, study on the acceptance of sports content is needed. The purpose of this study was to investigate how related sport contents characteristic, perceived usefulness, perceived ease of use and intention to use. To achieve this purpose, this study performed a statistical method with a questionnaire. The data collected from 311 university students who using on sport contents. For analysis, frequency analysis, exploratory factor analysis, confirmatory factor analysis, Cronbach's α, correlation and structural equation modeling were used by the computer using the statistics program SPSS and AMOS. The results of this study can be acquired as follows; First, connectivity had influence on perceived ease of use. Second, situational dependence had influence on perceived usefulness and perceived ease of use. Third, perceived usefulness had influence on intention to use. Forth, perceived ease of use had influence on intention to use. Thus, we knew that the results can provide several guidelines for promotion of sport contents service.

Small Angle Neutron Scattering Study on the Structural Variation of Lysozyme in Bioprotectants

Shota Koda,Haruki Takayama,Tomohiko Shibata,Tatsuya Mori,Seiji Kojima,In-Sung Park,Tae-Gyu Shin 한국물리학회 2015 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.66 No.9

The thermal denaturation and subsequent structural variation of lysozyme in various bioprotectant candidate solutions such as trehalose and choline acetate have been investigated by using small angle neutron scattering and differential scanning calorimetry. The gyration radius shows little change with the addition of additives in a native state at room temperature. On heating the lysozyme solution, a remarkable increase in the gyration radius is observed at temperatures above the denaturation temperature without any bioprotectants. Such an increase is suppressed by the additives owing to the intermolecular interactions between the lysozyme molecules and the bioprotectants of trehalose and choline acetate. The fractal dimension of lysozyme varies slightly with the addition of the bioprotectant solutions, and shows a remarkable drop in the vicinity of the denaturation temperature for all the solutions.

Baastrup’s Disease Is Associated with Recurrent of Sciatica after Posterior Lumbar Spinal Decompressions Utilizing Floating Spinous Process Procedures

Masao Koda,Chikato Mannoji,Masazumi Murakami,Tomoaki Kinoshita,Jiro Hirayama,Tomohiro Miyashita,Yawara Eguchi,Masashi Yamazaki,Takane Suzuki,Masaaki Aramomi,Mitsutoshi Ota,Satoshi Maki,Kazuhisa Takaha 대한척추외과학회 2016 Asian Spine Journal Vol.10 No.6

Study Design: Retrospective case-control study. Purpose: To determine whether kissing spine is a risk factor for recurrence of sciatica after lumbar posterior decompression using a spinous process floating approach. Overview of Literature: Kissing spine is defined by apposition and sclerotic change of the facing spinous processes as shown in X-ray images, and is often accompanied by marked disc degeneration and decrement of disc height. If kissing spine significantly contributes to weight bearing and the stability of the lumbar spine, trauma to the spinous process might induce a breakdown of lumbar spine stability after posterior decompression surgery in cases of kissing spine. Methods: The present study included 161 patients who had undergone posterior decompression surgery for lumbar canal stenosis using a spinous process floating approaches. We defined recurrence of sciatica as that resolved after initial surgery and then recurred. Kissing spine was defined as sclerotic change and the apposition of the spinous process in a plain radiogram. Preoperative foraminal stenosis was determined by the decrease of perineural fat intensity detected by parasagittal T1-weighted magnetic resonance imaging. Preoperative percentage slip, segmental range of motion, and segmental scoliosis were analyzed in preoperative radiographs. Univariate analysis followed by stepwise logistic regression analysis determined factors independently associated with recurrence of sciatica. Results: Stepwise logistic regression revealed kissing spine (p =0.024; odds ratio, 3.80) and foraminal stenosis (p <0.01; odds ratio, 17.89) as independent risk factors for the recurrence of sciatica after posterior lumbar spinal decompression with spinous process floating procedures for lumbar spinal canal stenosis. Conclusions: When a patient shows kissing spine and concomitant subclinical foraminal stenosis at the affected level, we should sufficiently discuss the selection of an appropriate surgical procedure.

Japan’s Perspective on PRC’s Rise as a Naval Power(Role of USA, Japan and ROK for our future)

Yoji Koda(코다 요지) 한국전략문제연구소 2011 전략연구 Vol.53 No.-

Knowledge Discovery and Data Mining : Status of Projects in Japan

Masato Koda 한국지능정보시스템학회 1998 한국지능정보시스템학회 학술대회논문집 Vol.1998 No.12