• 산업경영시스템학회지
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• 제31권3호
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• pp.52-60
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• 2008

This paper proposed a service satisfaction index in the service design. We utilize the service blueprint as the basic tool for the service process analysis, construct a service flow fishbone diagram which consists of the encounters representing the interaction between customer and service deliverer. To evaluate the service satisfactions of the service element a service satisfaction function is used. The service satisfaction function has the generic properties of the prospect theory with the probabilistic utility value in order to evaluate the service bundle which Is constructed by tangible and intangible service elements. A numerical example using the A/S service of Electronic Co. is presented for the verification.

• 한국학교수학회논문집
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• 제19권4호
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• pp.395-415
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• 2016

본 연구는 방정식 및 함수와 관련된 현직교사와 예비교사의 인식의 차이를 알아보기 위하여 K시 관내 중 고등학교에 재직하고 있는 수학 교사 49명과 M대학교 사범대학 수학교육과에 재학중인 예비교사 29명을 대상으로 인식의 차이를 비교 분석하였다. 그 결과 다음과 같은 결론을 얻었다. 첫째, 현직교사와 예비교사 모두 미지수가 1개인 일차방정식을 미지수가 2개인 일차방정식보다 더 일차방정식으로 인식하는 경향이 있다. 둘째, 현직교사와 예비교사 모두 음함수 형태보다 양함수 형태로 표현된 일차함수를 일차함수로 더 인식하는 경향이 있다. 셋째, 일차방정식과 일차함수에 대한 현직교사와 예비교사의 인식은 통계적으로 유의미한 차이가 없었다.

• 한국콘텐츠학회논문지
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• 제18권4호
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• pp.60-76
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• 2018

본 연구문제를 검증하기 위한 자료 수집은 서울지역 소재지 복무기관에서 복무 중인 사회복무요원을 대상으로 설문지 총 470부를 배부하여 427부를 통계분석자료로 사용하였다. 측정도구는 자아분화수준 척도, 자아탄력성 척도, 복무 부적응행동 척도를 사용하였으며, 연구문제 검증을 위한 통계처리는 일원변량분석, 상관분석, 중다회귀분석을 실시하였다. 본 연구의 결론은 다음과 같다. 첫째, 사회복무요원의 관련변인에 대한 전반적인 경향성을 살펴본 결과, 자아분화와 자아탄력성은 중간점수보다 약간 높은 수준이었고, 복무부적응행동은 보통보다 약간 낮은 수준으로 사회복무요원들이 대체로 복무에 적응을 잘 하는 것으로 나타났다. 둘째, 사회복무요원의 인구사회학적 특성, 자아분화와 자아탄력성이 복무 부적응행동에 미치는 상대적 영향력을 알아본 결과, 복무 부적응행동의 모든 하위변인에 인구사회학적 특징, 자아분화와 자아탄력성이 모두 유의미한 영향을 주었다. 사회적 위축에는 대인관계 효율성, 낙관적 태도, 가족퇴행 분화수준이 부적인 영향을 미쳤고, 정서적 단절, 학력, 복무기간이 정적인 영향을 미치는 것으로 나타났다. 과잉행동에는 가족퇴행 분화수준, 분노조절, 인지 대 정서가 부적인 영향을 주었고, 자아통합은 정적인 영향을 주었다. 공격성에는 가족퇴행과 인지 대 정서의 분화수준, 분노조절, 가정의 경제적 수준이 부적인 영향을 미쳤다. 강박성에는 가족퇴행, 낙관적 태도, 인지 대 정서, 가정의 경제적 수준, 복무기간이 부적인 영향을 주는 것으로 나타났다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권8호
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• pp.3701-3727
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• 2016

Recently Service Function Chaining (SFC) is promising to innovate the network service mode in modern networks. However, a feasible implementation of SFC is still difficult due to the need to achieve functional equivalence with traditional modes without sacrificing performance or increasing network complexity. In this paper, we present a configurable network service chaining (CNSC) mechanism to provide services for network traffics in a flexible and optimal way. Firstly, we formulate the problem of network service chaining and design an effective service chain construction framework based on integrating software-defined networking (SDN) with network functions virtualization (NFV). Then, we model the service path computation problem as an integer liner optimization problem and propose an algorithm named SPCM to cooperatively combine service function instances with a network utility maximum policy. In the procedure of SPCM, we achieve the service node mapping by defining a service capacity matrix for substrate nodes, and work out the optimal link mapping policies with segment routing. Finally, the simulation results indicate that the average request acceptance ratio and resources utilization ratio can reach above 85% and 75% by our SPCM algorithm, respectively. Upon the prototype system, it is demonstrated that CNSC outperforms other approaches and can provide flexible and scalable network services.

• 디지털융복합연구
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• 제18권11호
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• pp.395-407
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• 2020

본 연구는 한국 성인 및 노인들을 대상으로 치매 서비스 이용 여부와 인지기능의 관계를 살펴보고, 건강정보이해능력이 두 변수 간의 관계에서 조절효과를 나타내는지 검증하고자 하였다. 이를 위해 K대학교에서 전국 60~79세 지역사회 거주자를 대상으로 직접면접조사를 통해 수집한 2016년 치매이해능력 설문조사 자료를 활용하였으며, 최종분석대상자로는 522명이 선정되었다. 다중회귀분석을 실시한 결과, 첫째, 치매 서비스 경험이 있는 노인일수록 인지기능이 높게 나타났다. 둘째, 건강정보이해능력이 높을수록 인지기능이 높게 나타났다. 셋째, 치매 서비스 경험과 인지기능의 관계에서 건강정보이해능력이 조절효과를 보이는 것으로 나타났다. 본 연구는 건강정보이해능력이 치매서비스 이용에 있어 중요한 역할을 하고 있음을 실증적으로 발견하여 고령자의 치매 및 건강 관련 정책에 주요 시사점을 제시한다.

• 한국도로학회논문집
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• 제18권4호
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• pp.9-18
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• 2016

PURPOSES : This study aimed to evaluate the performance of pavement management works and to develop a function for estimating the level of service (LOS) and cost of service (COS) for the systematic and quantitative management of pavement performance in the public sector. METHODS : The International Roughness Index (IRI) was used as the performance index for pavement management. Long-term pavement performance data for a period of 7 years (2007-2014) collected by the National Highway Pavement Management System and historical maintenance budget data published by the South Korean government were used to develop the LOS-COS function. Based on the function, a model for estimating the appropriate budget as well as the network conditions was suggested. RESULTS : There was high degree of correlation between pavement performance and the investment level (R = - 0.74). The developed LOS-COS function suggested that the unit cost to improve the network IRI to 1 m/km was 32.6 billion KRW. Further, the maintenance costs normalized with respect to the LOS levels were LOS-A = 88.2 billion KRW, LOS-B = 55.6 billion KRW, and LOS-C = 23.0 billion KRW. CONCLUSIONS : This study proposes a simple way of developing a LOS-COS function. It also shows how to develop a network budget demand and condition estimation model using the LOS-COS function. In addition, it is the first attempt to evaluate the road maintenance budget in South Korea. It is expected that these results will help in the negotiations between the road managers and budget makers.

• Clinical and Experimental Pediatrics
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• 제63권6호
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• pp.219-225
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• 2020

Background: There is increasing concern that moderate preterm (32-33 weeks' gestation) and late preterm (34-36 weeks' gestation) birth may be associated with minor neurodevelopmental problems affecting poor school performance. Purpose: We explored the cognitive function, cognitive visual function, executive function, and behavioral problems at school age in moderate to late preterm infants. Methods: Children aged 7-10 years who were born at 32⁺⁰ to 36⁺⁶ weeks of gestation and admitted to the neonatal intensive care unit from August 2006 to July 2011 at the National Health Insurance Service Ilsan Hospital were included. We excluded children with severe neurologic impairments, congenital malformations, or chromosomal abnormalities. Neuropsychological assessments consisted of 5 neuropsychological tests and 3 questionnaires. Results: A total of 37 children (mean age, 9.1±1.2 years) participated. The mean gestational age at birth was 34.6±7.5 weeks, while the mean birth weight was 2,229.2±472.8 g. The mean full-scale intelligence quotient was 92.89±11.90; 24.3% scored between 70 and 85 (borderline intelligence functioning). An abnormal score was noted for at least one of the variables on the attention deficit hyperactivity disorder diagnostic system for 65% of the children. Scores below borderline function for executive quotient and memory quotient were 32.4% and 24.3%, respectively. Borderline or clinically relevant internalizing problems were noted in 13.5% on the Child Behavior Check List. There were no significant associations between perinatal factors or socioeconomic status and cognitive, visual perception, executive function, or behavior outcomes. Conclusion: Moderate to late preterm infants are at risk of developing borderline intelligence functioning and attention problems at early school age. Cognitive and executive functions that are important for academic performance must be carefully monitored and continuously followed up in moderate to late preterm infants.

• 보건의료산업학회지
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• 제5권3호
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• pp.133-143
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• 2011

This study is purposed to suggest the method for improving the effect of the mental health project by checking the influence of the "value and function of the mentally disabled" to the "satisfaction to current life of the mentally disabled" for the users of the daytime mental rehabilitation service in the local community, and the difference in the"satisfaction to the current life of the mentally disabled" and "value and function of the mentally disabled" depending on the participation into the mental rehabilitation program. With regard to the "satisfaction to the current life of the mentally disabled", the result showed that the "relation between the current user members" and "consideration about himself in usual time" were the positive influential factors out of the measuring factors for the "value and function of the mentally disabled." In addition, with regard to the "satisfaction to the current life of the mentally disabled", in case of participating to the "vocational rehabilitation program" out of the mental rehabilitation programs, the general "personal value and function which are felt by the mentally disabled" has higher significant difference in case of participating into the "social technology program", "daily life program", "vocational rehabilitation program", "leisure activity program" out of the mental rehabilitation programs than non participating.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2000년도 춘계학술대회 논문집
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• pp.151-156
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• 2000

The brake system is important to stop train safely. The train is sloped by regenerative brake and pneumatic brake which are continuously blended at service brake. When service is applied to train, it is controlled by train weight and brake command. The jerk limitation function is applied for impulseless smoothing braking. All brake applications in service condition have a function of the variable load control to keep the braking effort in proportion to each car load. All of control function are performed by brake controller. Therefore, we will propose the design of brake control system in order to control efficiently

• Journal of information and communication convergence engineering
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• 제2권1호
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• pp.40-45
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• 2004

This paper describes a modeling of service composition manager based on TINA (Telecommunication Information Networking Architecture). The Service composition function is mainly motivated by the desire to easily generate new service using existing services from retailers or $3^{rd}$-party service providers. The TINA-C specification for the service composition does not include the detailed composition procedure and its object models. In this paper, we propose a model of components for the service composition, which adapts a static composition feature in a single provider domain. To validate the proposed modeling, we implemented prototype service composition function, which combines two multimedia services; a VOD service and a VCS service. As a result, we obtain the specification of the detailed composition architecture between a retailer domain and a $3^{rd}$-party service provider domain.