• 산경연구논집
• /
• 제9권4호
• /
• pp.63-72
• /
• 2018

Purpose - The purpose of this paper is to investigate the effects of online game properties, social interaction, and player satisfaction on intention to online games in Chinese gamers. Research design, data, and methodology - This study is an empirical analysis assuming that properties of online games, social interaction and satisfaction will induce Chinese gamers' intention to play online games. We set the relationship between the six variables as follows. First, the properties of online games, exogenous variables, were identified by three factors: entertainment, security, participation and challenge. Second, we had input social interaction among gamers as another exogenous variables. Third, the gamer's satisfaction of online games was added to the research model as a mediating variable between exogenous variables and endogenous variables. Finally, gamer's intention to play influenced by satisfaction and social interaction was used as final endogenous variable. The data used for the empirical analysis were collected through questionnaires for Chinese under age 35 who enjoy the online games. The data used in the research were finally extracted from 195 questionnaires. The collected data were tested through the analysis of the measurement model (Step 1) and the analysis of the structural model (Step 2). The covariance structure equation model (SEM) was used for the analysis. The measurement model and structural model were evaluated by the maximum likelihood method. Results - The results of the empirical analysis are as follows. The satisfaction of online games were entertainment and security had a significant effect to satisfaction; but participation and challenge and social interaction had no significant effect on satisfaction. The social interaction among gamers and the satisfaction with online games have a significant influence on the intention to play online games. As a result, the attributes of the game were affecting the intention to play the game after satisfaction. Social interaction influenced the intention to play online games rather than satisfaction itself. Conclusions - This study provide some practical implications for the new companies who want to enter the online game industry and seek to competitiveness in China, and provide theoretical implications on the role of interaction among gamers in the study of online games.

• 감성과학
• /
• 제20권3호
• /
• pp.89-96
• /
• 2017

본 연구는 비콘 기반의 웨어러블 디바이스를 통해 Social Distance로부터 감성 상호작용을 인식하기 위한 기술을 개발하였다. 인식된 상호작용은 Photoplethysmogram(PPG)로부터 추정된 심혈관 동시성과 비교하여 평가되었다. 상호작용은 Social Distance가 일정 시간 이상 유지되었을 경우 인식되었으며, 심혈관 동시성은 PPG로부터 계산된 Beats Per Minute(BPM) 간의 상관분석을 통해 추정되었다. Social Distance로부터 유효한 상호작용을 인식하기 위한 유지시간을 결정하기 위해 상호작용 대상일 때와 아닐 때의 심혈관 동시성에 대해 Mann-Whitney U test를 실시하였다. 15개 집단(집단 당 2명)이 실험에 참여하였으며, 이들은 일상생활에서 비콘 및 PPG 웨어러블 디바이스를 착용하도록 요청받았다. 그 결과, 본 연구에서 인식한 상호작용 대상은 더 높은 심혈관 동시성을 보이는 것으로 나타났으며, 유효 상호작용 시간은 통계적 유의차를 보이는 11초로 결정되었다(p=.045). 결과적으로 실 공간에서의 사회관계망에 대한 실시간 측정과 평가를 할 가능성을 높였다.

• 정보처리학회논문지D
• /
• 제18D권2호
• /
• pp.89-100
• /
• 2011

인간 유전체에 존재하는 유전적 구조 변이(genetic structural variation) 중 하나인 유전체 단위반복변이(Copy Number Variation, CNV)은 유전자의 기능 발현과 밀접한 관련이 있다. 특히 특정 유전 질병이 있는 사람들을 대상으로 CNV와 유전자발현의 관계를 밝히는 연구가 계속 진행되고 있지만, 정상인 유전체에 대한 CNV의 기능적 분석은 아직 활발히 이루어지고 있지 않다. 본 논문에서는 다수의 정상인 샘플에서 찾아낸 공통된 CNV에 대하여 유전자들과의 기능적 관계를 유전자의 분자적 위치와 상관없이 밝힐 수 있는 분석 방법을 제시한다. 이를 위해 서로 다른 이질적인 생물학데이터를 통합하는 방법을 제시하고 공통된 CNV와 유전자와의 연관성을 분자적 위치와 상관없이 계산할 수 있는 새로운 방법을 제시한다. 제안된 방법의 유의성을 보이기 위해서 유전자 온톨로지 (Gene Ontology) 데이터베이스를 이용한 다양한 검증 실험들을 수행하였다. 실험결과 새롭게 제안된 연관성 측정방법은 유의성이 있으며 공통된 CNV와 강한 연관성을 갖는 유전적 기능의 후보들을 시스템적으로 제시할 수 있는 것으로 나타났다.

• 한국지반공학회논문집
• /
• 제30권12호
• /
• pp.41-49
• /
• 2014

본 연구에서는 기존 근사해석 프로그램의 간편함을 유지하면서 보다 정밀성이 확보된 3차원 근사해석기법(YS-MAT)을 개발하였다. 전면기초는 6개의 자유도를 가진 평면쉘 요소로 모델링하여 기초의 연성거동을 고려할 수 있도록 하였으며, 지반스프링의 상호작용을 고려할 수 있도록 하였다. 기존의 해석기법, 유한요소해석 및 현장계측값과의 비교 분석 결과, 본 해석기법이 대단면 전면기초의 침하 거동을 비교적 정확히 산정하는 것으로 판단되며, 이러한 검증을 토대로 실제 전면기초 예비설계에 적용 가능함을 확인할 수 있었다.

• 디지털산업정보학회논문지
• /
• 제13권4호
• /
• pp.221-230
• /
• 2017

BL(Blended Learning) has been presented as a promising alternative learning approach. BL is defined as a learning approach that combines e-learning and face-to-face classroom learning. The adoption of BL in computer practice class is necessary due to the characteristics of computer practice class itself. This study proposes a research model that examines the determinants of learner's satisfaction of computer practice classes in BL environment. Considering the characteristics of computer practices classes contents and instructor interaction were identified as the determinants. The research model is tested using a questionnaire survey of 141 participants. Confirmatory factor analysis (CFA) was performed to test the reliability and validity of the measurements. The partial least squares (PLS) method was used to validate the measurement and hypotheses. The empirical findings shows that contents easiness and contents constructs are the primary determinants of instructor interaction in BL. Instructor interaction was also found to be related to the learner's satisfaction resulting in re-using. The findings provide insight into the planning and utilizing BL in computer practice classes to enhance learner's satisfaction.

• 여성건강간호학회지
• /
• 제9권4호
• /
• pp.351-358
• /
• 2003

Purpose: The aim of this study was to examine the effect of Desexualization Care guided by dramaturgical interaction on women's embarrassment during cervical cancer screening. Method: This study was carried out in a nonequivalent control group non-synchronized post-test only design. 62 women who had cervical cancer screening were' conveniently recruited from a university hospital health promotion center. Embarrassment was measured under four distinctive sub-dimensions by the method of self-reported questionnaire and blood pressure and pulse rates monitoring. The data of control group had a conventional pap smear were collected in advance and then those of experimental group were gathered after completing data collection in the control group. Women in experimental group were provided with a newly developed cervical cancer screening programme in which interdisciplinary team conducted dramaturgical interaction. Result: There was no significant difference in the scores of VAS between the two groups. The score of physiological response of Embarrassment Measurement Scale was significantly lower in experimental group than in the control group (p <.05), while no significant difference was found in cognitive-emotional, non-verbal and verbal behavioral responses between the two groups. There was also no significant difference in blood pressure and pulse rates between the two groups during cervical s creening. Conclus ion: Desexualization Care guided by dramaturgical interaction during cervical screening was found to have positive effect on physiological response of women's embarrassment. Further research for identifying other main variables which might have influenced on women's embarrassment is needed.

• 한국도로학회논문집
• /
• 제14권3호
• /
• pp.33-39
• /
• 2012

배수성 포장에 있어 기능적 평가인 투수성 실험과 더불어 소음저감 측정을 서울시에서 시공한 구간에서 실시하였다. 소음측정은 두 가지 방법을 이용하였는데 그 방법은 Pass-by 방법과 NCPX(Novel Close Proximity) 방법을 이용하였다. Passby 방법은 교통량에 따른 소음원이 전달되는 것을 측정하는 방법이고, NCPX는 타어어와 포장 표면간의 마찰음을 측정하는 방법이다. 현장투수시험을 위해서는 총 5개의 구간에서 실시하였으며 각 구간마다 주행부와 비주행부로 나뉘어 측정하였다. 3개 구간의 Pass-by 측정을 위해서는 교통소음원 발생점으로부터 인접한 곳에서 측정을 실시하였고 또한 공원내부 혹은 단지 내부에서도 소음을 측정하였다. 마지막으로 NCPX 측정은 4군데서 실시하였다. 결과적으로 배수성 포장의 기능인 투수성과 소음저감이 2, 3년 사이에서는 그 기능을 잘 유지함을 알 수 있었다.

• 대한물리치료과학회지
• /
• 제29권2호
• /
• pp.38-47
• /
• 2022

Background: The purpose of this study was to investigate the effect of the combined application of manipulation and stabilization exercises on pain and spinal curvature in patients with chronic back pain. Design: Randomized controlled trial Methods: The research subjects included 24 women in their 40s and 50s who have chronic back pain. The sample was evenly divided into an experimental group, which received the combined application of manipulation and stabilization exercises, and a control group, which received stabilization exercises only. The 30-minute intervention was applied five times a week for eight weeks. A bivariate repeated measures analysis of variances was conducted to identify the differences between the two groups before the experiment, after the fourth week, and at the end of the eight-week experiment. The level of statistical significance was set at.05. This analysis examined the within-group changes and the between-group changes using a paired t-test and an independent t-test, respectively. Results: Changes in pain differed significantly depending on the time of the measurement, the interaction between the time of the measurement and each group, and between the two groups (p<.05). Changes in the curvature of the bones of the neck, the bones of the back, and the lumbar vertebrae differed significantly depending on the time of the measurement and the interaction between the time of the measurement and each group (p<.05). Conclusion: The combined application of manipulation and stabilization exercises demonstrated a positive effect on changes in pain and spinal curvature, and the method is expected to be a useful intervention for reducing pain and improving spinal curvature in patients with back pain.

• Journal of Information Processing Systems
• /
• 제6권3호
• /
• pp.347-358
• /
• 2010

This paper presents a measurement system for 3D hand-drawn gesture motion. Many pen-type input devices with Inertial Measurement Units (IMU) have been developed to estimate 3D hand-drawn gesture using the measured acceleration and/or the angular velocity of the device. The crucial procedure in developing these devices is to measure and to analyze their motion or trajectory. In order to verify the trajectory estimated by an IMU-based input device, it is necessary to compare the estimated trajectory to the real trajectory. For measuring the real trajectory of the pen-type device, a PHANToMTM haptic device is utilized because it allows us to measure the 3D motion of the object in real-time. Even though the PHANToMTM measures the position of the hand gesture well, poor initialization may produce a large amount of error. Therefore, this paper proposes a calibration method which can minimize measurement errors.

• 대한인간공학회지
• /
• 제27권4호
• /
• pp.95-101
• /
• 2008

This research is to develop PPG filtering method for respiration measurement in U-Health Care system. Respiration rate was determined by filtering PPG and analyzing its spectrum. Optimal filter of PPG has been selected to get respiration by testing 120 sets of experiment data using 700 filtering cases. As a result, 2nd order Bessel-filter that used band-pass cutoff frequency at 0.175~0.4Hz with second order was good at developing respiration signal. Respiration signal in time domain could be continuously analyzed by converting frequency domain using spectrum analysis. 24 seconds has been found to be optimal time duration of collecting PPG data for determining respiration. Therefore, this study was successful of getting not only heart activity but also respiration by only PPG. Minimal invasive measurement obtaining multi-bio information by one sensor can be expected to apply to U-Health Care and human computer interaction.