• KIPS Transactions on Computer and Communication Systems
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• v.3 no.7
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• pp.231-240
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• 2014

Video transcoding techniques provide an efficient mechanism to make a video content adaptive to the capabilities of a variety of clients. However, it is hard to provide an appropriate quality-of-service(QoS) to the clients owing to heavy workload on transcoding operations. In light of this fact, this paper presents the dual transcoding method in order to guarantee QoS in streaming services by maximizing resource usage in a transcoding server equipped with both CPU and GPU computing units. The CPU and GPU computing units have different architectural features. The proposed method speculates workload of incoming transcoding requests and then schedules the requests either to the CPU or GPU accordingly. From performance evaluation, the proposed dual transcoding method achieved a speedup of 1.84 compared with traditional transcoding approach.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.21 no.8
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• pp.1209-1217
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• 1997

This paper proposes the modeling of the dynamics of two cooperating robot manipulators performing the assembly job such as peg-in-hole while coordinating the payload along the desired path. The mass and moment of inertia of the manipulators and the payload are assumed to be unknown. To control the uncertain system, a robust control algorithm based on the computed torque control is proposed. Usually, the robust controller requires high input torques such that it may face input saturation in actual application. In this reason, the robust control algorithm includes fuzzy logic such that the magnitude of the input torque of the manipulators is controlled not to go over the hardware saturation while keeping path tracking errors bounded. A numerical example using dual three degree-of-freedom manipulators is shown.

• Journal of the Korean Home Economics Association
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• v.35 no.3
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• pp.139-150
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• 1997

The purpose of this study was (1) to explore the difference in parental satisfaction regarding personal/family, work, and psychological variables of employment characteristics, and (2) to investigate the most effecting variables on the parental satisfaction. For this study, the working mother with children aged under 10 year were surveyed. The results of this study were as follow; (1) There were significant differences in the parental satisfaction according to work time, job preference, income, the difficulty of work life. However, working mother's personal and family variable were not found as the related variable. Psychological variables were correlated with parental satisfaction. (2) Maternal role efficiency, dual role conflict, flexibility of work, marriage year, income, psychological stress, expanded family, durations of occupation, spouse support significantly predicted parental satisfaction. Psychological variables were important in parental satisfaction of working mothers.

• Proceedings of the Korean Information Science Society Conference
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• 2003.04a
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• pp.46-48
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• 2003

미국 페르미연구소에서 현재 수행되고 있는 고에너지물리 실험의 하나인 CDF 실험에서는 현재 303대의 Dual CUP 클러스터를 이용한 중심분석용팜(CAF, Central Analysis Farm)을 페르미 연구소 내에 구성하여 실제 데이터 처리 및 모의 시늉 데이터를 생산하는데 사용하고 있다. 그러나 페르미 연구소에서의 중심분석용팜(CAF)은 향후 그 자원이 충분치가 못하므로, 이에 참여하고 있는 여러 나라의 컴퓨팅 자원들을 공유할 수 있어야 한다. 따라서, 한국그룹은 경북대학교 고에너지물리연구소에 있는 PC 클러스터를 활용하여 탈중심분산팜 (DCAF, DeCenteralized Analysis Farm)을 국제공동연구로 설계하여 테스트베드를 구축하였다. 이 구성에는 CAF의 기술뿐만 아니라 페르미 연구소라는 원격에 있는 실험 데이터를 이용하여 job을 수행하므로 데이터 전송 기술인 SAM(Sequential data Access via Meta-data) 및 Kerberos의 보안 시스템, 그리드(Grid)를 포함하는 모든 IT 기술의 종합으로 이루어져있다.

• The Journal of the Convergence on Culture Technology
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• v.9 no.1
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• pp.267-279
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• 2023

The purpose of this study is to find out the experience and meaning of discrimination among Korean-Chinese part-time job international students. To this end, after in-depth interviews with nine Korean-Chinese part-time job international students from May to June 2022, the data were analyzed using Colaizzi's phenomenological research method. The findings were as follows: New challenges for living expenses and efficient adaptation, this road full of thorns, efforts to adapt beyond discrimination, growth and relationships through part-time jobs turned out to be opportunities. This experience became a process for Korean-Chinese part-time international students to grow further as well as solve economic problems. However, they are subject to multiple discrimination due to their dual status as international students and ethnic Korean-Chinese. Their Korean identity gives a more directed differential experience in the process of working part-time. But in the process, they are still overcoming difficulties. Korean-Chinese international students are growing up by accepting discrimination experiences and adapting to their international life. As a result of the above research, we need education and help to guarantee working human rights for Korean-Chinese part-time students with the development of a multicultural society in the future.

• The Journal of the Korea Contents Association
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• v.9 no.10
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• pp.464-473
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• 2009

The purpose of this study was to analyze women's selection pattern on kindergarten/child care centers and private tutoring for young children. For this purpose, 1,810 women whose young children's age was between 2 and 6 were selected from KLoWF data. After categorizing the education centers as daycare center, kindergarten, and private institute, it was investigated the women's characteristics related to their decision making for selection of the centers. The results of survey data analyses showed that younger children's mothers preferred to send their children to daycare centers, older children's mothers did to kindergarten. In terms of their dual selection on education centers, the frequency of 6-old-year children attending kindergarten and private institutes was very high. As the children's age was increasing, the frequency of women's multiple selection on daycare center, kindergarten and private institute was also increasing. In addition, regardless of the women's job pattern and existence, they preferred to send children to daycare centers. With these findings, limitations and suggestions for the future studies were also discussed.

• Journal of Korea Association of Health Promotion
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• v.2 no.2
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• pp.137-148
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• 2004

Objective : To identify the risk factors for postmenopausal osteoporosis in Korea Materials and methods : Bone mineral density (BMD) at the lumbar spine and femoral neck was measured by dual energy X-ray absorptiometry in 808 apparently normal postmenopausal Korean women. Questions about life style, demographic parameters, medical history and social habits etc. were asked on these women; 2ll women with normal bone mineral density, and 597 women with osteopenia or osteoporosis. Results 'Age of >50 years, low body mass index (BMI; <18.5 kg/m2), long duration of menopause(>10 years), and previous history of fracture were associated with increased prevalence of osteopenia or osteoporosis. Women without the outside activity also showed a higher frequency of low bone mass, Risk for osteopenia or osteoporosis was low in women with high BMI (>23 kg/m2) and women with job. The prevalence of low bone mass appeared to be independent of the following parameters: socioeconomic status, familial history, smoking, drinking, exercise, previous use of oral contraceptive, coffee or milk consumption, and degree of sunlight exposure. Conclusion 'Age, BMI, duration of menopause, previous history of fracture and degree of outside activity are the risk factors for postmenopausal osteoporosis in Korea.

• Journal of Digital Convergence
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• v.11 no.10
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• pp.331-340
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• 2013

The recent economic downturn has created new challenges for today's company workers such as increased job instability; layoffs; the need to maintain dual income households and the associated childcare requirements; and other job stresses. These stresses give rise to serious problems for workers and ultimately to organizations. Companies therefore need to pay attention to solving the problem of stress. These days, many companies seek a solution from EAP. EAP aims to support workers through counseling, consulting and coaching services to help them overcome issues which may adversely affect job satisfaction and performance. EAP was introduced in this country ten years ago. Formerly, many companies viewed stress primarily as a personal issue. But now more companies are in a hurry to adopt EAP as a means for individuals to resolve stress. This study draws on the example of EAP use in LG Hausys. The company has adopted EAP under the CEO's strong support. The company has effectively managed EAP services which include professional counseling and the training of internal counselors. This study derives implications for the further implementation of EAP services.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.42 no.11
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• pp.9-16
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• 2005

This paper proposes a programmable PLL (phase locked loop) based clock generator supporting a wide-range-frequency input and output for high performance and low power SoC with multiple clock frequencies domains. The propose system reduces the locking time and obtains a wide range operation frequency by using a dual-charge pumps scheme. For low power operation of a chip, the locking processing circuits of the proposed PLL doesn't be working in the standby mode but the locking data are retained by the DAC. Also, a tracking ADC is designed for the fast relocking operation after stand-by mode exit. The programmable output frequency selection's circuit are designed for supporting a optimized DFS operation according to job tasks. The proposed PLL-based clock system has a relock time range of $0.85{\mu}sec{\sim}1.3{\mu}sec$($24\~26$cycle) with 2.3V power supply, which is fabricated on $0.35{\mu}m$ CMOS Process. At power-down mode, PLL power saves more than $95\%$ of locking mode. Also, the PLL using programmable divider has a wide locking range ($81MHz\~556MHz$) for various clock domains on a multiple IPs system.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.1
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• pp.282-290
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• 2015

This study is intended to look into parents' satisfaction of contracting-out system in employer-supported childcare centers. To achieve this, a survey was carried out to 400 parents who use national, public and private employer-supported childcare centers. The results were as follows. First, employer-supported childcare factors were the qualities of childcare environment, childcare program and early childhood teacher in both contracted-out and in-house services. The satisfaction with facility, program, operation and childcare training was improved in good employer-supported childcare factors And the satisfaction with the relationship between these factors could improve the expectation for the use of employer-supported childcare centers. Second, the difference in the operation of employer-supported childcare centers showed that the most preferred size was 50 to 74 children. The contracted-out services was more preferred than in-house services. And the location of on-the-job facility was more preferred than off-the-job facility. As stated above, the preference of employer-supported childcare centers was more raised than that of general kindergartens or childcare centers by an increase in the trend of working child parents' dual income. In other words, small and medium sized childcare centers of some 50 children were more preferred than large scaled childcare centers. Consequently, the retainment of childcare programs, facilities and quality teachers contracted out to professional childcare centers can improve the satisfaction with them.