• 한국자동차공학회논문집
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• 제24권2호
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• pp.127-136
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• 2016

The camera based object detection systems should satisfy the recognition performance as well as real-time constraints. Particularly, in safety-critical systems such as Autonomous Emergency Braking (AEB), the real-time constraints significantly affects the system performance. Recently, multi-core processors and system-on-chip technologies are widely used to accelerate the object detection algorithm by distributing computational loads. However, due to the advanced hardware, the complexity of system architecture is increased even though additional hardwares improve the real-time performance. The increased complexity also cause difficulty in migration of existing algorithms and development of new algorithms. In this paper, to improve real-time performance and design complexity, a task scheduling strategy is proposed for visual object tracking systems. The real-time performance of the vision algorithm is increased by applying pipelining to task scheduling in a multi-core processor. Finally, the proposed task scheduling algorithm is applied to crosswalk detection and tracking system to prove the effectiveness of the proposed strategy.

• 한국정보과학회논문지:시스템및이론
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• 제27권2호
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• pp.160-168
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• 2000

본 논문에서는 네트워크 컴퓨터를 이용하여 병렬 프로그래밍 환경에서 수행되는 프로그램의 성능을 추적하고 평가하기 위한 온라인/일괄처리-사건/시간 기반형 성능 감시기를 제안한다. 본 논문의 JaNeC 성능 감시기는 자바로 구현되어 있으므로 이기종 컴퓨터사이의 시스템 이식성이 뛰어나며, 웹 기반의 그래픽 콘솔을 제공하여 사용자에게 친숙한 인터페이스를 제공한다. 본 논문에서 제시한 성능 감시기는 사용자가 프로그램 실행시에 발생한 이벤트를 보다 쉽게 분석할 수 있도록 태스크나 이벤트를 선택할 수 있는 필터 기능과 TimeLine, Task View, Task History, Message Passing View, Host CPU View 기능 등으로 구성되어 있다.

• 간호행정학회지
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• 제16권4호
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• pp.446-454
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• 2010

Purpose: This study was conducted to compare job satisfaction, self-esteem, and nursing task performance between registered nurses (RN) and nurse assistants (NA) in long-term care hospitals. Method: The sample consisted of 203 nursing personnel (RN 99 and AN 104), who were working in one of 5 long-term care hospitals in 5 different areas. Data were collected by structured questionnaires from March 15 to April 30, 2010, and analyzed using the descriptive statistics, independent t-test, One-way ANOVA, and Pearson correlation coefficients with SPSS/Win 17.0 program. Result: There was no significant difference between nurses and nurse assistants in job satisfaction and self-esteem. But nurses had higher levels of nursing task performance than nurse assistants. Conclusions: These findings demonstrate the necessity of developing programs that will help to improve job satisfaction and self-esteem in nurses and nursing task performance in nurse assistants. Strategies need to be developed to maximize the value of the existing workforce without impacting on the quality of care delivered.

• 한국전자통신학회논문지
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• 제10권6호
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• pp.757-762
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• 2015

본 논문은 색온도가 글씨 쓰기 과제 수행과 뇌파에 미치는 영향을 알아보고자 2013년 7월부터 9월까지 초등학생 아동 24명을 대상으로 실시하였다. 색온도의 고정과 유지를 위해 준비된 실험실에서 주황색등과 백색등에 따른 과제수행시간의 측정과 뇌파를 측정하여 분석하였다. 연구 결과 알파파, 베타파, 하이베타파의 출현이 백색등에서 높게 나타났으나 과제수행 시간은 주황색등에서 유의하게 빠른 수행을 보였다. 이는 기존의 낮은 색온도는 안정과 이완에 전형적인 색온도로 여겨졌으나 심인적인 요인과 과제의 특성과 종류에 따른 다양한 활용은 학습과 작업의 능률에 긍정적인 영향을 줄 수 있음을 제시했다.

• 간호행정학회지
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• 제13권2호
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• pp.156-166
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• 2007

Purpose: The purpose of the present study was to examine the causal relationships among hospital nursing organizational characteristics (organizational climate, workload), individual characteristics (experience, education) and outcome variables (job satisfaction, job stress, task performance) by constructing and testing a conceptual framework. Method: Five large general hospitals located in Seoul were selected to participated. The total sample of 245 registered nurses represents a response rate of 94 percent. Data for this study was collected from January to February in 2006 by questionnaire. Path analyses with LISREL program were used to test the fit of the proposed model to the data and to examine the causal relationships among variables. Result: Both the proposed model and the modified model fit the data excellently. The model revealed relatively high explanatory power of work stress (40%), job satisfaction (46%) and task performance (27%) by predicted variables. In predicting work stress, job satisfaction and task performance, the finding of this study clearly demonstrate organizational climate might be the most important variable. Conclusion: Based on the findings of the study, it was suggested that desirable organizational climate was needed to increase the nurses' mental and physical health as well as qualified task performance.

• 한국콘텐츠학회논문지
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• 제22권6호
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• pp.701-711
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• 2022

본 연구는 불확실한 시장환경에서 기업의 과업 성과에 영향을 미치는 요인을 찾기 위해 상사 리더십과 동료의 정서적 지원이 성과평가 공정성과 자기효능감을 통하여 과업 성과에 미치는 영향 관계를 살펴보고자 하였다. 이를 위하여 기업 직원들을 대상으로 500부의 설문 자료를 수집하였고, Smart PLS 3.0을 사용하여 연구 가설을 검증하였다. 연구 결과 상사 리더십과 동료의 정서적 지원이 직원들의 성과평가 공정성에 개별적으로 정(+)의 영향을 나타내었고, 성과평가 공정성은 자기효능감에 정(+)의 영향을 나타내었다. 본 연구를 통하여 직원들이 받아들이는 성과평가 공정성과 자기효능감이 업무성과에 영향을 미친다는 것을 밝혀내서 후속 연구가들에게 이론적 토대를 제공해 주었고, 기업에서는 업무성과를 높이기 위해서는 인사제도인 성과평가 공정성을 관리하여 직원들의 도전 의식을 고취 시켜야 한다는 실무적 시사점을 제시하였다. 향후 연구에서는 본연구 결과를 바탕으로 과업 성과를 위해 조직이 갖추어야 할 요인에 대한 다양한 연구가 필요하다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1995년도 추계학술대회 논문집 학회본부
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• pp.219-221
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• 1995

This paper proposes a model for simulation and performance evaluation of distributed computer systems(DCS). The model is composed of operating system(OS), resource, task, environment submodel. Task Flow Graph(TFG) is suggested to describe the relation between tasks. This paper considers task response time, the scheduler's ready queue length, utilization of each resource as performance indices. The distributed system of Continuous Annealing Line(CAL) in iron process is simulated with the proposed model.

• 대한가정학회지
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• 제29권3호
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• pp.131-152
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• 1991

The purposes of this study are to investigate the socialization of household task service area and the satisfaction with it, and to find out the factors affecting on them. For these purposes the data are collected by using questionnaire distributed to 450 housewives living in Seoul. The data are analyzed using frequency, percentile, one way anova, pearson's correlation analysis, simple regression analysis, multiple regression analysis. The results of this research are as follow : 1. There are significant differences in the socialization of household task service area according to housewives's education and employment family income, the type of housing the number of household equipment sex role attitude, attitude about household task, and task performance competency. 2. The factors showing significant relation to the satisfaction about socialization of household task service areas are found to be housewife's education and employment family income sex role attitude and task performance competancy. 3. In the result of the independent contribution of the factors, the most influencial factor is the socialization of household task service area and the next is sex role attitude. 4. Housewives are generally satisfacted on the socialization of household task because of the overweight of household task and because they are unable to those household tasks, and on the other hand they are generally dissatisfacted on the socialization of household tasks because of economic weight, because they couldn't know the ability of service export before employing and because the housework practiced by service expert is different from their expects.

• Wind and Structures
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• 제14권6호
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• pp.517-536
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• 2011

The assessment of wind-induced motion plays an important role in the development and design of the majority of today's structures that push the limits of engineering knowledge. A vital part of the design is the prediction of wind-induced tall building motion and the assessment of its effects on occupant comfort. Little of the research that has led to the development of the various international standards for occupant comfort criteria have considered the effects of the low-frequency motion on task performance and interference with building occupants' daily activities. It has only recently become more widely recognized that it is no longer reasonable to assume that the level of motion that a tall building undergoes in a windstorm will fall below an occupants' level of perception and little is known about how this motion perception could also impact on task performance. Experimental research was conducted to evaluate the performance of individuals engaged in a manual tracking task while subjected to low level vibration in the frequency range of 0.125 Hz-0.50 Hz. The investigations were carried out under narrow-band random vibration with accelerations ranging from 2 milli-g to 30 milli-g (where 1 milli-g = 0.0098 $m/s^2$) and included a control condition. The frequencies and accelerations simulated are representative of the level of motion expected to occur in a tall building (heights in the range of 100 m -350 m) once every few months to once every few years. Performance of the test subjects with and without vibration was determined for 15 separate test conditions and evaluated in terms of time taken to complete a task and accuracy per trial. Overall, the performance under the vibration conditions did not vary significantly from that of the control condition, nor was there a statistically significant degradation or improvement trend in performance ability as a function of increasing frequency or acceleration.

• 대한수학교육학회지:학교수학
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• 제3권2호
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• pp.325-354
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• 2001

The study aims to develop balanced performance assessment tasks for primary school mathematics which can be implemented in the primary school easily. In order to these purposes, I suggest the types of performance assessment tasks and the framework of assessment standards for the balanced performance assessment with describing the procedures of developing tasks and rubrics. The types of task are journal writing, problem posing, constructed task, and descriptive task. In the framework of assessment standards, I suggest holistic scoring which are classified as four levels according to the degree of excellence which students perform totally concerning about the criterion of implication, reasoning, accuracy, and communication. Also I analyse the responses of children to the task “make a beautiful pattern” and suggest its assessment rubric and anchor papers for each level for illustrating the process of developing a rubric in holistic scoring. In order to reflect the viewpoints of children and their Parents concerning about the tasks, the responses in self assessment and parent assessment are analysed. Finally, methods of implementing the assessment tasks and considerations are discussed.