• 대한가정학회지
• /
• 제24권4호
• /
• pp.93-104
• /
• 1986

The purpose of this study was to see that how about the related variables influence on the use of the microwave oven and how about the use of the microwave oven influence on the time spent in meal preparation and meal management. Questionaires were give to randomly selected homaker's, in kwangju in August, 1986. Data from the 149 response were analyzed according to multiple regression. The results were as follows; 1. The variables affecting the use of the microwave oven were family income, homaker's employed hours, homakers' education level, a period of use a microwave oven, congnition of a special character in a microwave oven, family style of participation in meal preparation, frequency in use of instant food. 2. The variables of the use the microwave oven was significantly influence on the time spent in meal preparation. 3. The variables of the use the microwave oven was not significantly influence on meal management.

• 대한디지털의료영상학회논문지
• /
• 제15권1호
• /
• pp.39-45
• /
• 2013

PACS Import external image of the thread of the tasks and duties of hospital revenue and business efficiency falls over time. 500 beds or more medical imaging import work outside of the hospital, most hospitals use a PC, KIOSK, and was used in 15 hospitals where, CD Autoloader where use was the only one. Working hours compared to CD and DVD media to test the results of the Import target PC, KIOSK, CD Autoloader Import spent less time in the order, and also the greater capacity of CD Autoloader four times the PC, KIOSK 2 times Import could be implemented quickly. In addition, the waiting time of the patients was measured using the PC's time to Import, 2011 14.5 minutes and the average patient waiting time, KIOSK and later use CD Autoloader 2012 average patient wait time of 8.25 minutes, 43% of the existing average waiting time was 5.25 minutes to reduce. However, KIOSK case of a patient in a way that directly Import latency time was soon. Import of three ways: in terms of efficiency and excellent CD Autoloader way, the patient waiting time in terms of ease of use and KIOSK was excellent. In addition, with the introduction of CD Autoloader with KIOSK Joint of the items waiting time of patients and patient satisfaction rating is considered to be a major contribution.

• 한국콘텐츠학회논문지
• /
• 제21권7호
• /
• pp.601-608
• /
• 2021

본 연구는 2019년 통계청의 생활시간조사 데이터를 활용하여 도시에서 거주하고 있는 1인 가구 40, 50대 중년여성 594명을 대상으로 시간 부족과 여유로 구분하여 시간인지 정도에 따라 일상생활-주 활동의 수행에 소비하는 시간량 패턴에 대하여 알아보았다. 일상생활 행동별 시간량의 차이에서는 두 그룹 모두 개인 관리에 상대적으로 많은 시간을 소비하고 있음을 알 수 있었다. 시간 부족 그룹은 일, 문화 및 여가활동, 가정관리순, 시간 여유 그룹은 문화 및 여가활동, 일, 가정관리 등의 순으로 일상 시간을 사용하였다. 1인 중년여성의 시간인지는 일상생활의 주요 행동 패턴의 차이를 보이며, 문화 및 여가활동과 일은 이들의 중요한 일상 행동으로 보인다. 이 연구는 중년층 내 1인 가구 중년여성의 시간 사용을 살펴봄으로써, 향후 노년기 삶의 질 제고를 위한 생활시간 활용 방향과 정책 지원의 기초자료를 제시하고자 한다.

• 한국콘텐츠학회논문지
• /
• 제14권7호
• /
• pp.395-406
• /
• 2014

본 연구는 최근 급증하는 청소년의 소셜 네트워크 서비스(SNS) 이용이 인터넷을 포함한 미디어 이용시간과 어떠한 상관관계가 있는지를 살펴보고, 그 관계구조 속에서 부모의 이용 제한과 대안활동 참여가 어떠한 매개효과로서 작동되는지를 검증하고자 한다. 이는 청소년의 올바른 미디어 이용 유도를 위해 부모를 통한 이용지도나 활동적 대안활동에 초점을 두는 다양한 가이드와 프로그램이 과연 효과가 있는 것인가에 대한 시사점을 제공하기 위함이다. 분석을 위해서 본 연구는 전국 초, 중, 고등학교 청소년 1572명을 대상으로 설문한 정보통신정책연구원의 "한국미디어패널조사" 자료를 이용하였다. 최종 분석대상은 성별은 남학생이 818명, 여학생이 754명이었고, 초등학생 672명, 중학생 416명, 고등학생 484명이었다. 연구에서 제안한 모형의 적합도 검증을 위해 구조방정식을 통해 분석한 결과, SNS 이용은 미디어 이용시간에 직접적으로 영향을 주는 것이 아니라 대안활동을 매개로 하여 간접적인 영향을 미치는 것으로 분석되었다. 또한 보호자의 이용제한은 미디어 이용시간에 영향을 주지 않는 것으로 나타났다. 본 연구결과는 진화하는 스마트미디어 환경에서는 더 이상 미디어 이용시간의 감소를 위한 부모의 이용제한 방식과 대안활동 참여가 유의하지 않은 이유를 찾고, 더 나아가 국가와 사회가 미디어중독 현상을 이해하고 해소 대안을 찾는데 의미있는 정책 시사점을 제안해 줄 것으로 기대한다.

• 한국비블리아학회지
• /
• 제5권1호
• /
• pp.85-105
• /
• 1981

Information is an essential factor leading the rapid progress which is one of the distinguished characteristics in modem society. As more information is required and as more is supplied by individuals, governmental units, businesses, and educational institutions, the greater will be the requirement for efficient methods of communication. One possibility for improving the information dissemination process is to use computers. The capabilities of such machine are beginning to be used in the process of Information storage, retrieval and dissemination. An important problems, that must be carefully examined is whether one technique for information retrieval is better for worse than another. This paper examines problem of how to evaluate an information retrieval system. One specific approach is a cost accounting model for use in studying how to minimize the cost of operating a mechanized retrieval system. Through the use of cost analysis, the model provides a method for comparative evaluation between systems. The general cost accounting model of the literature retrieval system being designed by this study are given below. 1. The total cost accounting model of the literature retrieval system. The total cost of the literature retrieval system = (the cost per unit of user time X the amount of user time) + ( the cost per unit of system time X the amount of system time) 2. System cost accounting model system cost = (the pre-search system cost per unit of time X time) + (the search system cost per unit of time X time) + (the post search system cost per unit of time X time) 1) Pre-search system cost per unit of time = cost of channel per unit time + cost of central processing unit per unit time + cost of storage per unit time 2) Search system cost per unit of time = comparison cost + document representation cost. 3) Post-search system cost per unit of time. = cost of channel per unit time + cost of central processing unit per unit time + cost of storage per unit time 3. User cost accounting model Total user cost = [pre-search user cost per unit of time X (time + additional time) ] + [search user cost per unit of time X (time + additional time) ] + [post-search user cost per unit of time X (time + additional time) ].

• 한국의류학회지
• /
• 제38권6호
• /
• pp.913-928
• /
• 2014

This study estimated a dual path model to predict consumers' intention to use a QR code virtual store by the effect of a mobile transaction system and a facilitating condition that also examined the role of experience and the use of an intention model in the context of a QR code virtual store. A longitudinal field study was conducted at selected QR code virtual stores. A questionnaire containing mobile transaction system, facilitating condition, performance expectancy, effort expectance, and intention to use was administered at two different points in time: Initial use (T1) and the second use after one month (T2). This study sampled 109 subjects who voluntarily participated in field studies twice at different time points (pooled sample=218). Participants were asked to visit at the QR code virtual store and undertake shopping tasks on their smartphones. The estimated dual path model showed that a mobile transaction system had a positive effect on performance expectancy, which influenced intention to use; however, facilitating condition had a positive effect on effort expectancy, but the effort expectance did not lead to intention to use. The effort expectance significantly also affected the performance expectance influencing intention to use QR code virtual stores. It was also found that use experience moderated the effect of mobile transaction systems on performance expectancy. The findings discussed a critical and success factor in consumer technology acceptance and use over time. A managerial implication was also discussed to capture potential users by emphasizing performance expectancy with the superiority of an innovative system or consumer facilitating condition as external resources in the introduction stage of new technology.

• 한국조사연구학회지:조사연구
• /
• 제9권1호
• /
• pp.43-68
• /
• 2008

이 연구는 생활시간 연구를 위한 두 도구를 비교한다. 시간일지와 경험표집법, 이전의 연구들이 이 두 도구가 집합적 측정치에서 유사하다는 것을 보여 왔지만, 각 도구의 개별기록의 일치율을 비교한 연구는 없었다. 이 두 도구에 모두 응답한, 시카고 대학의 알프레드 슬로안 센터에서 행해진 500가족 스터디의 일부 표본을 통하여, 이 연구는 두 도구를 비교하고 상대적 장단점을 평가하였다. 연구결과는 시간일지가 보다 덜 편향된 행동시간 측정치를 제공하는 데 반해, 경험표집법이 일상생활에 대해 보다 구체화된 서술을 가능하게 함을 시사하고 있다. 후속연구를 위한 함의가 논의되었다.

• Design & Manufacturing
• /
• 제18권2호
• /
• pp.51-56
• /
• 2024

In this study, a tool was developed for analyzing production lead time in turning operations. It is expected to help to reduce machining time and to identify, for example, tool change intervals. The tool was developed using Visual Basic.Net and features a user-friendly graphical user interface (GUI) that allows users to easily input cutting conditions and calculate the usage time and feeding distance for each cutting tool based on a G-code program. Object-oriented programming techniques were also used to encapsulate and classify complex logic, thereby efficiently organizing and managing the functions and data structures of this analysis tool. The analysis tool provides various outputs. It calculates the use time of each detailed process of the turning operation, the use time of each tool, the use time of each type of feeding, and also generates the data needed for cutting time analysis, which can be visualized in charts. The analysis tool developed in this study is expected to significantly contribute to improving the efficiency of manufacturing processes and increasing productivity, particularly, in the manufacturing of components requiring massive material removal, such as aircraft parts.

• 대한간호학회지
• /
• 제33권2호
• /
• pp.275-283
• /
• 2003

Purpose: This study was to classify elderly in long-term care hospitals for using Resource Utilization Group(RUG-III) and to consider feasibility of payment method based on RUG-III classification system in Korea. Method: This study designed by measuring resident characteristics using the Resident Assessment Instrument-Minimum Data Set(RAI-MDS) and staff time. The data were collected from 382 elderly over sixty-year old, inpatient in the five long-term care hospitals. Staff time was converted into standard time based on the average wage of nurse and aids. Result: The subjects were classified into 4 groups. The group of Clinically Complex was the largest(46.3%), Reduced Physical Function(27.2%), Behavior Problem(17.0%), and Impaired Cognition(9.4%). The average resource use for one resident in terms of care time(nurses, aids) was 183.7 minutes a day. Relative resource use was expressed as a case mix index(CMI) calculated as a proportion of mean resource use. The CMI of Clinically Complex group was the largest(1.10), and then Reduced Physical Function(0.93), Behavior Problem(0.93), and Impaired Cognition(0.83) followed. The difference of the resource use showed statistical significance between major groups(p<0.0001). Conclusion: The results of this study showed that the RUG-III classification system differentiates resources provided to elderly in long-term care hospitals in Korea.

• Journal of Trauma and Injury
• /
• 제30권2호
• /
• pp.25-32
• /
• 2017

Purpose: The use of computed tomography (CT) to evaluate acute abdominal complaints has increased over the past two decades. We investigated how the clinical practice of patients with intestinal perforation has changed with the increasing use of abdominal CT in the emergency department (ED). Methods: We compared ED arrival to CT time, ED arrival to surgical consultation time, and ED arrival to operation time according to the method of diagnosis from 2003-2004 and 2013-2014. Results: In patients with gastrointestinal perforation, time from ED arrival to CT was shorter ($111.4{\pm}66.2min$ vs. $199.0{\pm}97.5min$, p=0.001) but time to surgical consultation was longer ($135.1{\pm}78.8$ vs. $77.9{\pm}123.7$, p=0.006) in 2013-2014 than in 2003-2004. There was no statistically significant difference in time to operation for perforation confirmed either by plain film or CT between the two time periods. There was no statistically significant difference in length of hospital or ICU stay or mortality between the two groups. Conclusion: With the increasing use of abdominal CT in ED, ED arrival to CT time has decreased and ED arrival to surgical consultation time has increased in gastrointestinal perforation. These changes of clinical performance do not delay ED arrival to operation time or adversely influence patient outcome.