모바일서비스가 조직성과에 미치는 영향에 관한 실증적 연구

최성용,이교엽 한국서비스경영학회 2003 서비스경영학회지 Vol.4 No.3

Considering the rapid growth of mobile devices, such as mobil e phones, PDA, etc., this study aimed to find out a proper model for the influence of mobile service system on the organizational performance. Genera lly the implementation of mobile service systems requires multi-dimensi onal activities related with hardware, software (information system), orgaware, and so on. To accomplish research objectives effectively in this study, the f actors influencing organizational performance were classified as four categories ; c o r p o r a t e 최성용이교엽서비스경영학회지 제4권 제3호 2003년 12월 18operational environment, enterpr ise information infrastructure, b u s i n e s application systems, and mobile services. Top management support and sys tem infrastructure is essential t o b o t h online information and mobile service systems. And mobile servi ce systems must be designed and implemented to meet organizational strateg y. Online information systems have more influence on the organizational p erformance than mobile service systems right now and must be previously co nstructed to implement mobile service systems.

운영관리 과목에 팀 기반 학습 도입을 통한 문제해결 능력과 자기주도적 학습 능력 증진 효과에 관한 연구

최성용,최지연 한국상업교육학회 2016 상업교육연구 Vol.30 No.6

본 연구는 운영관리 교과목에서 팀 기반 학생 참여형 수업이 개인의 생애능력에 미치는 영향에 대해 실증분석을 실시하였다. 팀 기반 학습의 효과성을 측정하기 위해 문제해결 능력과 자기주도적 학습 능력을 중심으로 개인 생애능력을 정의하였고, 운영관리 수업을 수강한 18명의 학생들을 대상으로 개인 생애능력의 증진 여부에 대해 t-test을 실시하였다. 그 결과 팀 기반 학습은 팀 기반 학습의 요소들(팀별 토론, 필답 시험, 팀별 과제, 팀 프로젝트) 전반을 통해 문제해결 능력과 자기주도적 학습 능력을 유의하게 개선시킨다. 구체적으로 문제해결 능력 요인 중 ‘대안 개발’, ‘계획/실행’, ‘수행 평가’ 영역에서 학기 초(팀 기반 학습 수행 전) 보다 학기 말(팀 기반 학습 수행 후)에 해당 영역 점수들이 유의하게 향상된 것으로 나타났다. 유사하게 자기주도적 학습 능력의 경우는 ‘학습 계획’과 ‘학습 평가’ 영역에서 학기 초보다 학기 말에 높은 점수를 보이는 것으로 나타났다. 학기가 종료된 후 실시한 인터뷰에서는 팀 기반 학습을 기반으로 한 수업 운영에서 교수자가 추가적으로 고려해야 할 사항들로 무임 승차자의 방지, 학기 중 학생 수업 로드 균등하게 분산, 팀 편성 고려요인 재조정 등이 지적되었다. 이러한 실증분석 결과는 개인 생애능력 향상 차원에서 팀 기반 학생 참여형 수업의 효과성을 인정하며, 이를 관련된 유용한 시사점들을 제공한다. We design a class of Operations Management with TBL(Team-Based Learning). In order to measure the effectiveness of TBL, we define the life-skills as problem solving and self-directed learning, and then empirically test the improvement effects of the life-skills. Consequently, TBL significantly improves both problem solving and self-directed learning through all the sub-factors of TBL such as Team Discussion, Written Exam, Team Assignments and Term Project. Specifically, TBL significantly increases the scores of the subareas on problem solving, which are ‘Alternative Development’, ‘Implementation’, and ‘Evaluation and Feedback.’ Similarly, TBL also increases the scores of ‘Planning’ and ‘Reflection’ on self-directed learning. A face-to-face interview, after the end of semester, suggests a few more valuable concerns for our further consideration, which are preventing free-riders, making class loads evenly throughout the semester, and re-considering the factors for team building.

學術集談會 演題抄錄

최성용 대한치과이식임플란트학회 1996 The Korean Academy of Implant Dentistry Vol.15 No.1

An Analysis of Binomial Yield Production Process considering Salvage Value

최성용,김진민,맹주열 한국SCM학회 2017 한국SCM학회지 Vol.17 No.1

We study how to determine the optimal lot size in a production process with binomial yield. First, we review the precedent studies in binomial yield production processes in inventory management literature. In results, an extended new model is presented to consider salvage values for leftover inventories. We initially formulate it as a discrete (unconstrained) optimization model, and then convert it as a corresponding continuous (unconstrained) optimization model by the normal approximation. Finally, we prove the concavity of the model, and examine the impact of salvage value on the optimal lot size. All of these analytical results are also confirmed computationally with the numerical examples generated by Monte Carlo simulation.

COMPLICATIONS & SOLUTIONS IN IMPLANT DENTISTRY

최성용 대한치과의사협회 2002 대한치과의사협회지 Vol.40 No.12

유아교육기관의 서비스품질 요인이 고객만족에 미치는 영향에 관한 연구 유치원과 보육기관 비교 분석

최성용,권미영 한국품질경영학회 2006 품질경영학회지 Vol.34 No.2

In this study, an investigation was done into service quality factors of infant education institutes, after which a positive verification was made in the relation of cause and effect between service quality, service value and customer satisfaction. Based on this verification, strategies were presented for plans to improve the service quality of infant education. In addition, identification was made into factors that affect customer satisfaction, re-registration intention and recommendation to others in putting forward service operational strategies for infant education institutes and making a comparative analysis on kindergartens and daycare centers.

지진 관련 SNS 텍스트에 나타난 비명시적 감성표현 연구

최성용,남지순 서강대학교 언어정보연구소 2019 언어와 정보 사회 Vol.38 No.-

This paper studies domain-dependent implicit sentiment expressions in earthquake-related social media texts. In sentiment analysis, domain-dependent implicit sentiment expressions are difficult to estimate and recognize, which often results in the depreciation of system performance. In this study, we analyzed two types of implicit sentiment expressions that may occur in the causal clause of the sentence conveying ‘fear’ sentiment: {simple predicate} type such as ‘collapse’ and {complex predicate} such as ‘blow up’. When these clauses appear without main clauses that express explicit sentiments such as ‘anxiety’ or ‘panic’, they imply the omitted sentiment and thus implicitly express certain sentiments by themselves. The DECO T-Crawler platform was used to collect earthquake-related data in social media texts and the DECO Korean dictionary and local-grammar graph formalism were used to the corpus. The performance of resources built in this study showed 84.5% accuracy in a test corpus, which is about 23% higher than the accuracy expected when using only sentiment-conveying words.

팽창재를 사용한 고성능 습식 숏크리트의 초기팽창 특성

최성용,박재훈,허인,이겨레,한승연,윤경구 한국방재학회 2015 한국방재학회논문집 Vol.15 No.1

In this dissertation, expansion admixture was used to suppress the cracking of high performance wet shotcrete. At the same time, characteristicsof shotcrete were evaluated to using the silica-fume, fly ash, blast-furnace slag. The effect of expansion admixture (0, 3, 7,11 and 15%) on the high-performance shotcrete was analyzed. Also, the effect of silica fume(10%), fly ash(20%), blast furnaceslag(40%), meta-kaolin(10%) were analyzed. The incorporation rate of the mineral admixture were selected based on the previousstudies. The results are as follows: All expansion occurred before initial 10 hours in the shotcrete mixture with pozzolan material withoutexpansion agent. The shotcrete mixture with 11% expansive admixture showed a reduction in shrinkage, and this would lead toprevention of crack in concrete due to a reduction in long term shrinkage. The optimal content of expansive additive would rangebetween 7.0% and 11.0% when considering expansion and contraction and heat of hydration. 본 논문에서는 고성능 습식 숏크리트의 균열발생을 억제하기 위하여 팽창재를 사용하였으며, 동시에 내구성 증진을 위해 광물성 혼화재료인 실리카퓸, 플라이애시, 고로슬래그 미분말, 메타카올린을 사용하여 숏크리트의 특성을 평가하였다. 실험은 팽창재를 시멘트량대비 0%, 3%, 7%, 11% 및 15%를 혼입한 5가지 변수로 설정하여 팽창재가 보통 포틀랜트시멘트 콘크리트에 미치는 영향을 분석하였다. 그리고 동일한 작업성을 기준으로 광물성 혼화재료의 적정 혼입량으로 알려진 실리카퓸 10%, 플라이애시 20%, 고로슬래그 미분말 40%, 메타카올린 10%를 각각 혼합하여 무혼입 기준변수를 포함한 광물성 혼화재료에 대한 5가지 변수를 설정하여 실험을 진행하였다. 이에 대한 결론은 다음과 같다. 팽창재가 혼입되지 않은 포졸란재료 혼합 숏크리트에서는 초기 10시간 이전에 모든 팽창이 이루어지고 이후에는 미세한 수축이 발생되는 것을 확인하였다. 따라서 팽창재의 사용으로 초기 팽창률을 높여서 수화반응으로 발생되는수축을 억제하였고, 장기적으로는 건조수축을 감소시켜 균열 발생을 방지하는 효과가 있음을 알 수 있었다. 포졸란재료를 혼합한 숏크리트에서는 팽창재를 11% 혼입했을 경우, 팽창 후 수축하지 않고 팽창을 유지하는 것으로 확인되었으며, 초기거동을 고려하여 팽창재를 과다하게 사용하면 내구성에 악영향을 미치므로 7~11% 가량 첨가하는 것이 초기에 발생되는 수화열로 인한 미세 균열을 예방할수 있을 것으로 판단된다.

코골이 환자와 배우자에서 코골이 소음과 난청과의 관계

최성용,김덕수,정영도,신승헌,예미경 대한이비인후과학회 2016 대한이비인후과학회지 두경부외과학 Vol.59 No.11

Background and Objectives Snoring is a condition that affects a large percentage of population and is associated with various medical and social complications. However, there are only few published reports investigating the effects of chronic snoring exposure on hearing. In the present study, we examined whether there is an association between chronic snoring noise exposure and noise induced hearing impairment not only in snorers but also in their spouses. Subjects and Method Sixty snorers and 27 spouses under the age of 55 were recruited. All participants had more than 5 years of exposure to snoring. Questionnaire for snoring and pure tone audiometry were conducted. Subjects were classified into normal hearing group and hearing impairment group. Results Forty percent of snorers and 25.9% of spouses had hearing impairment. The snorers with hearing impairment had longer duration of snoring than the snorers with normal hearing. However, there were no statistical differences in loudness of snoring between the two groups. In the spouse group, there were statistical differences in loudness of exposed snoring and in duration of snoring exposure between the hearing impairment group and the normal hearing group. Conclusion The result of this study indicated that chronic exposure to snoring noise may be associated with hearing impairment in snorers and their spouses. But in the snorers, further studies are required to identify the factors other than snoring noise associated with hearing impairment. Korean J Otorhinolaryngol-Head Neck Surg 2016;59(11):770-4

보철을 위한 심미치주수술

최성용,Choe, Seong-Yong 대한심미치과학회 2001 Journal of the Korean Academy of Esthetic Dentistr Vol.10 No.2