• 한국어교육
• /
• 제25권1호
• /
• pp.83-113
• /
• 2014

This study aims to examine the change of strategy use by analyzing the refusal sequence of beginner Japanese Korean learners by time difference of 10 weeks. The results of the study are as follows; First, in the solidarity system of politeness(power-, distance-), learners showed similar ability as native Koreans after 10 weeks. Second, in the deference system(power-, distance+), there was a difference according to the situational burden when using strategies. In the invitational setting, the learners sought justification for their refusal or tried to negotiate by explaining in detail as time passed. However, in the request setting, they showed no will to compromise by refusing directly and leading the listener to give up. Third, similar difference was found in the use of strategies depending on the situational burden in the hierarchical system(power+, distance+). While learners could present their justification for refusal by showing their interest in the invitation as time passed in the invitation setting, they expressed straight refusal and were not willing to negotiate in the request setting.

• 문화기술의 융합
• /
• 제8권6호
• /
• pp.23-30
• /
• 2022

이 연구는 부모의 스마트폰 이용과 자녀의 스마트폰 이용의 관계를 살펴보기 위한 탐색적 연구로, 부모와 자녀의 스마트폰 이용시간이 유의미한 상관관계에 있는지 확인하고자 했다. 이를 위하여 정보통신정책연구원의 '한국미디어패널조사' 11차년도 자료를 활용하여 실증적 분석을 실시했다. 연구 결과, 부모가 스마트폰을 오래 이용하는 경우 자녀 역시 스마트폰을 오래 이용하는 것으로 나타났다. 이러한 정적 상관관계는 스마트폰 전체 이용 시간과 게임 이용시간에서 확인할 수 있었다. 이와 같은 연구 결과는 부모와 자녀의 스마트폰 이용 양식이 가족 이라는 단일 체계 내 구성원으로서 유사성을 보이고 있음을 시사한다. 이 연구는 개인의 미디어 이용을 가족, 미디어 이용 환경을 통해 설명하기 위한 기초 자료를 제공한다.

• 대한산업공학회지
• /
• 제37권2호
• /
• pp.105-117
• /
• 2011

This study describes behavioral characteristics of Korean population over twenty years old in a variety of activities of daily living by analyzing the raw data of the time use survey provided by Statistics Korea (KOSTAT). Seven activities and forty four sub-activities of daily living were selected for analysis : personal care, employment, household care, family care, voluntary work and community participation, social life, recreation and leisure, and travel. In order to quantitatively understand how Korean adults spend their time for a day and how their lifestyle changes over time, we collected the time recorded by 3,673 respondents in three surveys over the past ten years (in 1999, 2004, and 2009). Then, we performed analysis of variance to compare the behavioral characteristics by user age and gender based on the mean time of each activity. The differences in behavior among user groups and over time could be used to design ergonomic products and services based on user experience, especially for universal design of housing and transportation facilities.

• KIEAE Journal
• /
• 제14권4호
• /
• pp.27-33
• /
• 2014

This study analyzed the electric vehicle recharging station status with recharging time limitation due to long waiting time, and figured out the user status by user interviews. And then this study verified the validity of hypothesis in terms of environmental design perspective and suggested layout of recharging station model. 21 recharging stations in Korea and station operation cases of 7 countries were examined. Except for the USA, the reality of electric vehicle recharging station today is the 1st proving stage focusing on the infrastructure construction of electric vehicle recharging station. It focuses on performance of recharging facility, use efficiency and operation environment of electric vehicle. About the effective waiting time of the user to use it should be studied. The current conditions of recharging station are as follows: Lack of independent recharging space, lack of facility that reduces external effect of recharging space, and lack of lounge for users during the waiting time. These three are essential factors constructing a suggesting model after basic layout, which needs proper measurement on the long recharging time and long waiting time. The essential factors are applied to electric vehicle recharging station layout so that users might use 'digital refresh" i.e. lounge and information contents service during the waiting time which provides convenience of recharging and emotional space with users. Such upgrade recharging station environmental model might resolve the burden of long recharging time which may contribute to the popularization of electric vehicles.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 2005년도 ICCAS
• /
• pp.1840-1845
• /
• 2005

The SoC and digital technology development recently enabled the emergence of information devices and control devices because the SoC present many advantages such as lower power consumption, greater reliability, and lower cost. It is required to use an embedded operating system for building control systems. So far, the Real-Time operating system is widely used to implement a Real-Time system since it meets developer's requirements. However, Real-Time operating systems reveal a lack of standards, expensive development, and license costs. Embedded Linux is able to overcome these disadvantages. In this paper, the implementation of control system platform using Real-Time Embedded Linux is described. As a control system platform, we use XScale of a Soc and build Real-Time control platform using RTAI and Real-Time device driver. Finally, we address the feasibility study of the Real-Time Embedded Linux as a Real-Time operating system for mobile robots.

• 가족자원경영과 정책
• /
• 제15권3호
• /
• pp.131-151
• /
• 2011

This study attempted to estimate the level of perceived lack of time in Korean society, to link it to time management and to identify the possible association that accounts for time shortage. I employed the gender perspective in order to reveal the dynamics and complexity of the perception of a lack of time in the population. The sample for the study was drawn from the 1999 and 2009 Korean time diary data collected by the Korean National Statistical Office. From the original data, I selected a sample of second shift families(men and women who are presently working and raising children) living in metropolitan areas(including Seoul and six major urban areas in Korea). The dependent variable was time pressure measured by a single-item question on a four-point likert scale. The results of the study showed that working mothers perceived a greater time shortage as compared to working fathers. The time use pattern showed change during the periods, indicating that people worked fewer hours in paid labor and enjoyed more leisure hours and personal care hours. However, on average, people seemed to have experienced a greater time lack in 2009 as compared to 1999. The results from the ordered logistic regression model revealed that even though there were similarities in the impact of relevant factors, men's perception of a lack of time was more closely linked with their work role and social status, while for women, this perception was influenced by work and family duties. This indicates that Korean working mothers and fathers are facing a double jeopardy of time shortage in terms of combining their work and family roles. As a result, the level of time pressure by gender is converging toward a "never enough" phase. These findings generated policy implications and detailed suggestions.

• 한국대기환경학회지
• /
• 제24권1호
• /
• pp.1-15
• /
• 2008

Chemical Accident Response Information System (CARIS) which has been designed for the efficient emergency response of chemical accidents produces the real-time atmospheric fields through the Regional Atmospheric Modeling System, RAMS. The previous studies were emphasized that improving an initial input data had more effective results in developing prediction ability of atmospheric model. In a continuous effort to improve an initial input data, we replaced the land-use dataset using in the RAMS, which is a high resolution USGS digital data constructed in April, 1993, with the latest land-use data of the Korea Ministry of Environment over the South Korea and simulated atmospheric fields for developing a real-time prediction in dispersion of chemicals. The results showed that the new land-use data was written in a standard RAMS format and shown the modified surface characteristics and the landscape heterogeneity resulting from land-use change. In the results of sensitivity experiment we got the improved atmospheric fields and assured that it will give more reliable real-time atmospheric fields to all users of CARIS for the dispersion forecast in associated with hazardous chemical releases as well as general air pollutants.

• 한국콘텐츠학회논문지
• /
• 제20권6호
• /
• pp.623-639
• /
• 2020

이 연구는 청년의 여가시간과 교제시간에 영향을 미치는 요인을 탐색한 것이다. 분석 결과, 청년의 여가시간을 제약하는 요인으로 유급노동, 가사양육 역할이 유의미한 영향을 미치며, 교제시간에는 제약요인과 함께 교제기회 요인이 유의미한 영향을 미친다. 취업준비청년과 니트청년은 다른 역할유형 청년에 비해 미디어여가, 문화관광 활동, 스포츠·레포츠 활동에 더 많은 시간을 투여하지만 학생에 비해 교제시간은 짧다. 이는 기회요인이 작용한 결과이다. 취업중인 청년은 주말 문화관광시간을 제외하고는 평일과 주말 여가시간이 가장 짧으며, 교제시간 제약 역시 크다. 가사육아 중인 청년은 주말에도 여가시간이 가장 짧다. 따라서 역할 사이의 이행, 중첩이 이루어지는 청년기에 역할수행에 따른 여가 제약요인을 줄여 고른 여가활동을 지원하고, 사회적 관계맺음 기회를 넓히는 사회적 지원이 필요하다.

• 대한간호학회지
• /
• 제27권4호
• /
• pp.777-786
• /
• 1997

The purpose of this study was to examine the conditions of drug use and to find the main factors that lead students to start and select drugs in their circumstances. The "other drugs" in this study means analgesics, hypnotics, stimulants, tranqualizers, and drinks including caffeine. The sample was 1,900 students and 1,412 responses were analyzed. Variables in the study included prescription provision by parents, drug use by friends, attitudes to drugs, drinking and smoking activities, and poly drug use Analysis of the data was done using descritive statistics, chi square, and, to find the determinants on other drug use, multiple logistic regression was performed. Data were analysed by SAS/PC programs. Of the subjects 86.6% of the students have had experienced with alcohol and 49.8% of them continue to use it, and 37.9% of the students have had experienced with smoking and 22.1% of them continue to smoke. The rates of using other drugs were as followed : analgesic 33.3%, hypnotics 4.3%, sedatives 4.4%, stimulants 8.7%, and 242 students have had experienced with more than two different kinds of drugs of the same time including alcohol and smoking. With the exception of alcohol and smoking, 126 students were continuing to use more than two different kinds of drugs. And 2.3 kinds of drugs were the average that were being used at the same time by poly drug users, alcohol and smoking excepting. In conclusion, the determinants of other drug use can be summarized as poly drug use, drug use by friends, obedience to drug prescription of parents, and time of first using drugs.

• 한국보육지원학회지
• /
• 제16권3호
• /
• pp.39-58
• /
• 2020

Objective: The purpose of this study is to investigate the effects of parents' perception of infant's use of digital devices on language development. Methods: For this study, a survey was conducted on 285 parents of 1-2year old infants attending childcare centers in Jeollanam-do. Results: First, the digital devices that infants were exposed to the most was the television, and their first exposure to digital devices was at 13~17 months. The most time spent using digital devices was 30 minutes and they most frequently used them at home. Second, parents perceived the educational value of digital devices as low. Third, language development was high when the initial use of digital devices for infants was late, when the daily use time of digital devices was less than 30 minutes, when digital devices were used with parents, and when parents always managed digital devices and usage time. Fourth, Parents' perception of the use of digital devices has a significant influence on their infants' language development. Conclusion/Implications: Language development due to the use of digital devices and parents' perception of the use of digital devices has a significant impact on infants language development.