• 한국엔터테인먼트산업학회논문지
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• 제14권8호
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• pp.467-476
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• 2020

본 연구는 전문대학 비대면 온라인 수업에 대한 교육의 질, 학습정서가 학습성과에 미치는 영향을 살펴보고 이들 간의 관계를 밝혀보는 다각적인 분석을 통해 온라인 수업의 질 향상을 위한 기반연구로서의 목적이 있다. 이를 위해 2020년도 3월 1일부터 2020년도 8월31일까지 수도권 소재 H 전문대학 학생 1000명을 대상으로 설문조사를 실시하였다. 수집된 자료는 SPSS Statistics 18.0 프로그램을 사용하여 통계처리 하였으며 온라인 수업에 대한 인식, 수업의 질, 학습정서와 관련된 요인들이 학습성과에 주는 영향력과 영향관계를 밝히기 위해 t검증, 상관분석, 다중회귀 분석을 실시하였다. 연구결과는 첫째, 온라인 수업에 대해 성별, 학년별로 통계적으로 유의미한 인식 차이가 있었다. 둘째, 온라인 수업에 대한 교육의 질, 학습정서, 학습성과는 정적상관을 보이고 있었다. 셋째, 학습성과 중 성취도에 영향을 미치는 요인은 교육내용과 긍정적 정서로 나타났으며 학습성과 중 만족도에 영향을 미치는 요인은 교육내용, 학습환경으로 타나났다. 결론적으로 전문대학 비대면 온라인 수업에 대한 교육의 질, 학습 정서가 학습성과가 서로 영향을 미치고 있고, 전문대학생들의 학년, 성별에 따라 온라인 수업 만족도에 영향을 미치고 있기에 전문대학 수업의 질적 수월성을 확보하기 위해 향후 노력을 기울여야 하는 부분은 전문대학생들이 자신이 취업하고자 하는 직업 현장의 문제를 창의적으로 해결하고 탐색할 수 있도록 이끄는 학습 내용개발과 학년별, 단계별 접근이 허용되는 학습방법 개발, 학습자들이 안정적으로 수업할 수 있도록 이끄는 수업환경조성이 선행되어야 함을 시사하고 있다.

• 산업경영시스템학회지
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• 제24권63호
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• pp.65-77
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• 2001

A more technical perspective is needed in estimating the effect of the Manufacturing Process for improving the Productivity, there are many statistical evaluation methods, convenience sampling, frequencies, histogram, QC seven tools, control chart etc. It is more important for the companies to use six sigma to reduce defective and improve the process control than the technical definition as a disciplined quantitative approach for improvement of process control and a new way of quality innovation. Process network analysis is a technique which has the potentiality for a wide use to improve the manufacturing process which other techniques can't be used to analyze effectively. It has some problems to analyze the process with feedback loops. The branch probabilities during quality inspections depend upon the number of times the product has been rejected. This paper presents how to improve the manufacturing process by statistical process control using branch probabilities, Moment Generating Function(MGF) and Sensitivity Equation.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 봄 학술논문 발표대회
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• pp.163-164
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• 2023

The technical proposal bidding system emphasizes the evaluation of the construction company's technical capabilities, with the aim of improving the quality and cost-effectiveness of the construction. However, in the VE analysis and proposal process for technical proposal bidding, the ideas are often reused from similar past construction projects, and the application of new construction technologies/methods is often lacking. Therefore, this study proposes a methodology for managing VE proposal information by integrating it into a BIM model using parametric modeling. This research developed database based on the existing VE proposals and new construction technology/method information from the Korea Institute of Civil Engineering and Building Technology. And by using parametric modeling, the proposed method integrate the VE database with BIM model. The methodology proposed in this study is expected to improve the reliability and effectiveness of VE-related idea proposals in technical proposal bidding.

• Geomechanics and Engineering
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• 제37권6호
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• pp.565-576
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• 2024

In this study, the earthquake risk assessment of single-story RC precast buildings in Turkey was carried out using loss curves. In this regard, Kocaeli, a seismically active city in the Marmara region, and this building class, which is preferred intensively, were considered. Quality and period parameters were defined based on structural and geometric properties. Depending on these parameters, nine main sub-classes were defined to represent the building stock in the region. First, considering the mean fragility curves and four different central damage ratio models, vulnerability curves for each sub-class were computed as a function of spectral acceleration. Then, probabilistic seismic hazard analyses were performed for stiff and soft soil conditions for different earthquake probabilities of exceedance in 50 years. In the last step, 90 loss curves were derived based on vulnerability and hazard results. Within the scope of the study, the comparative parametric evaluations for three different earthquake intensity levels showed that the structural damage ratio values for nine sub-classes changed significantly. In addition, the quality parameter was found to be more effective on a structure's damage state than the period parameter. It is evident that since loss curves allow direct loss ratio calculation for any hazard level without needing seismic hazard and damage analysis, they are considered essential tools in rapid earthquake risk estimation and mitigation initiatives.

• 대한치과보철학회지
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• 제43권5호
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• pp.633-649
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• 2005

Statement of problem: In spite of the progress in techniques and materials in complete denture prosthodontics, patients still complain of discomfort after the insertion of complete dentures. For the last several decades many prosthodontists tried to find factors influencing patient complete denture satisfaction, however the reported results became a controversy. Purpose: The purpose of the present study was to verify the factors influencing patient satisfaction with complete dentures using multiple regression analysis. Materials and methods: 33 patients who visited the department of prosthodontics, dental hospital of Yonsei University, 4 to 6 weeks after the complete denture delivery, were asked to complete the questionnaires on complete denture satisfaction, social variables and psychological variables. The Prosthodontists who treated the patients with complete dentures were also asked to complete the questionnaires on evaluation of patients' oral condition and technical quality of dentures. The factors influencing patients' satisfaction with their complete dentures were analyzed using multiple regression analysis. Results: Among the patients' sociodemographic variables. the variables of relationship with children, economic status, housing condition, other people's opinions of dentures and gender were the influential factors on patients' satisfaction with complete dentures. Patients showing the symptoms of depression, one of the psychological variables, were dissatisfied with their complete dentures. In spite of the good oral condition, patients were dissatisfied with complete dentures, where-as the technical quality of dentures did not influence patients' complete denture satisfaction. Conclusion : According to the results above, patients' sociodemographic and psychological variables rather than clinical variables including oral condition and technical quality of dentures were the influential factors on complete denture satisfaction. The results of this study may not only enable prosthodontists to predict the success and failure of complete denture treatment, but also help both prosthodontists and patients be informed of the essentials of increasing satisfaction with complete dentures.

• 한국조리학회지
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• 제11권3호
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• pp.40-55
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• 2005

The purpose of this study was to understand the effect of customers' repurchase intention, extract important factors, systematically analyze them and suggest the direction of bakery industry through studying the customers' satisfaction with bakeries. The researcher modified the questionnaire developed by Park, CH(1998), Lee, JH(2000), Yoon, YC(2000), and Kim SE(2002). In order to assess the level of customers' satisfaction with bakeries, a five point Likert scale was used. The used statistical methods for the data analysis were frequency analysis, reliability analysis, t-test factor analysis, ANOVA, multiple regression analysis. For all analyses of the research question, an alpha level of.05 was used. The major findings obtained from this study were as fellows. First on the factors of reliability and service ability, there was a high difference between males and females, and singles and the married. Second, on the factors of accessibility using convenience, service ability, and service response, there was a high difference among using frequence. Third, on the reliability factors, there was a high difference among average using amount per month. Forth, on the factors of accessibility using convenience, and service response, there was a high difference among types of customers' residing styles. Fifth, on the factors of income level, there was statistically no difference. Lastly, on the factors of accessibility using convenience, tangibleness, and service response, these factors significantly influenced customers' repurchase intention.

• Interaction and multiscale mechanics
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• 제3권1호
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• pp.39-54
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• 2010

In this paper, a simple approach is presented for studying the dynamic response of multi-span steel bridges supported by pylons of different heights, subjected to earthquake motions acting along the axis of the bridge with spatial variations. The analysis is carried out using the modal analysis technique, while the solution of the integral-differential equations derived is obtained using the successive approximations technique. It was found that the height of piers and the quality of the foundation soil can affect significantly the dynamical behavior of the bridges studied. Illustrative examples are presented to highlight the points of concern and useful conclusions are gathered.

• 대한건축학회논문집:구조계
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• 제34권11호
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• pp.45-54
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• 2018

The primary objective of this study is to develop a conceptual design of all-in-one attachment based steel pipe pile cutting robot that improves the conventional work in safety, quality, convenience and productivity. For this, the following research works are conducted sequentially; 1)literature review, 2)field investigation, 3)selection of element technology for conceptual design, 4)deduction of conceptual design and its work process, 5)technical feasibility analysis of the conceptual design and its work process. As a result, leveling laser and laser detector, plasma cutter, rotary grapple are selected as core technologies. Futhermore, a conceptual design and work process of an all-in-one attachment based steel pipe pile cutting robot are developed based on the core technologies. According to the technical feasibility analysis result, at least 76.8% of the respondents are selected positive answer about each device of the all-in-one attachment based steel pipe cutting robot. It is expected that the application range and impact on the construction industry will be enormous due to the increasing trend of the steel pipe pile market.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2008년도 제39회 하계학술대회
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• pp.663-664
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• 2008

In this study, A special quality analysis and experiment for low power consumption type pneumatic on-off micro valve was performed. And flow characteristics of the micro valve by stroke change was numerically investigated. As a result, it is shown that magnetic force(2.4N) is exerted enough to move poppet with 0.3mm stroke with 0.01 seconds of response time, and that there is no magnetic force emitted by yoke.

• 한국산학기술학회논문지
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• 제11권8호
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• pp.2835-2839
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• 2010

본 논문에서는 특허자료의 분석을 통해 무인 항공기 관련기술의 기술력을 살펴보고자 한다. 이를 위해 국가별 출원인수, 기술별 출원인수, 연도별 출원인수, 피인용 건수를 활용한다. 기술력을 분석하기 위해 현시기술비교우위지수를 변형한 현시특허우위지수(RPA)와 특허분석에서 사용하는 특허영향력지수(PII)를 활용하기로 한다. 현시특허우위지수는 특허의 양적인 비교지수로써 0을 기준으로 "+"일때는 경쟁력이 비교 우위에 있으며, "-"일때는 경쟁력이 비교 열위에 있다. 특허영향력지수는 다른 특허가 해당 특허를 얼마나 인용하였는가를 나타내는 비율로 1 이상 일때는 질적 수준이 높고 1이하 일때는 질적 수준이 낮다. 이러한 두 가지 지표를 활용하여 국가별, 기술별 경쟁력을 비교하였다.