• 문화기술의 융합
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• 제7권4호
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• pp.435-440
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• 2021

본 연구는 2020-2학기 00_대학교 <문화와 철학의 이해>라는 균형교양교과목에서 실시한 PBL(문제중심학습) 수업 사례를 통해 그 학습의 효과를 고찰한 것이다. 학습을 통한 효과는 다음과 같다. 첫째, PBL(문제중심학습)은 교수자와 학습자 간의 적극적인 상호작용이 충분히 이루어진다. 비대면 학습이 장기화되고 있는 실정에서 PBL교수법은 교수자-학습자, 학습자-학습자 간의 충분한 상호작용이 이루어진다. 둘째, PBL학습은 교과목 특성에 맞는 다양한 문제를 적극적으로 활용하고, 역할 분담과 협업의 과정을 적극적으로 활용할 수 있다. 셋째, 문제 상황에 대한 비판적 인식을 확장할 수 있다. 본 수업 사례에서 확인한 한계점은 첫째, <문화와 철학의 이해>라는 교과목의 특성상 세계문화 현상에 대한 논의는 충분히 가능하지만, 철학이라는 관점에서 논의가 되어야 한다. 철학적 부분을 분히 검토하여 적절하게 적용해야 한다. 둘째, 비대면 온라인에서 팀 작업이 쉽지 않다는 점이다. 오프라인 수업에서 팀을 이루어 학생들이 논의의 과정을 거친다면 훨씬 효과적인 학습이 이루어질 수 있을 것이다.

• 문화기술의 융합
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• 제10권3호
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• pp.219-226
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• 2024

본 연구는 간호대학생의 시뮬레이션 실습교육 경험, 임상실습 만족도, 문제해결능력 및 임상수행능력과의 관계를 파악하기 위한 연구이다. 연구설계는 서술적 상관관계 연구로 연구참여자는 3학년 간호대학생으로 교육과정에 시뮬레이션 실습교육이 있는 일개 대학의 학생 95명과 교육과정에 시뮬레이션 실습교육이 없는 일개 대학의 학생 102명으로 총 197명으로 구성되었다. 수집된 자료분석은 빈도분석, 기술통계, Independent t-test, Pearson correlation을 이용하였다. 연구결과 시뮬레이션 실습교육 경험이 있는 간호대학생은 임상실습에서 임상실습 만족도와 임상수행능력에 유의한 차이를 나타냈다. 그러나 문제해결능력은 유의한 차이가 없었다. 또한 시뮬레이션 실습교육 경험, 임상실습 만족도, 임상수행능력과의 상관관계가 있음을 확인할 수 있었다. 본 연구결과에 근거하여 간호대학생의 임상실습의 효과성을 높이기 위한 다양한 상황의 시뮬레이션 교육프로그램을 개발하고 활용할 수 있을 것이다.

• 공학교육연구
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• 제19권1호
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• pp.3-10
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• 2016

This study was conducted to identify Korea's TRIZ research trends and to propose implications for setting a direction for future TRIZ research by analyzing TRIZ-related research over the past 15 years, or from 1998 to 2013. The subjects in this study were 256 published studies, including 149 studies in academic journals, 97 master theses, and 10 doctorate theses. This study reached the following conclusion. First, academic journals were the most frequent form of publication of TRIZ-related studies, followed by master's degree theses, and doctorate theses. Second, two or more TRIZ tools were used to solve problems and the most frequently used topic was technical contradiction as the result of frequency analysis for TRIZ research topics. This signified that it was easier to solve problems when various TRIZ tools were used, rather than applying a single TRIZ tool while technical contradiction was considered to be actively used as it allowed the relatively easy understanding of TRIZ. Third, the use of TRIZ research topics had increased and diversified each year. This could be interpreted to be based on the increased understanding of TRIZ. Fourth, case studies and experimental research were the most frequently used methods in TRIZ-related research. This was because various TRIZ tools were applied on problem solving situations, which were directly proposed as the research result. Fifth, the use of TRIZ was increasing in the educational field. Specifically, it was noted that TRIZ was used in creativity education with the use of 40 invention principles in elementary, middle, and high schools.

• 전기학회논문지
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• 제61권2호
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• pp.276-283
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• 2012

In this paper, a practical quasi-optimal DOA(direction of arrival) estimator is proposed in order to develop a one-axis gimbaled ultrasonic source tracker for mobile robot applications. With help of the gimbal structure, the ultrasonic moving source tracking problem can be simply reduced to the DOA estimation. The DOA estimation is known as one of the representative long-pending nonlinear filtering problems, but the conventional nonlinear filters might be restrictive in many actual situations because it cannot guarantee the reliable performance due to the use of nonlinear signal model. This motivates us to reformulate the DOA estimation problem in the linear robust state estimation setting. Based on the assumption that the received ultrasonic signals are noisy sinusoids satisfying linear prediction property, a linear uncertain measurement model is newly derived. To avoid the DOA estimation performance degradation caused by the stochastic parameter uncertainty contained in the linear measurement model, the recently developed NCRKF (non-conservative robust Kalman filter) scheme [1] is utilized. The proposed linear DOA estimator provides excellent DOA estimation performance and it is suitable for real-time implementation for its linear recursive filter structure. The effectiveness of the suggested DOA estimation scheme is demonstrated through simulations and experiments.

• IEIE Transactions on Smart Processing and Computing
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• 제4권1호
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• pp.1-9
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• 2015

Template matching is used for many applications in image processing. One of the most researched topics is object tracking. Normalized Cross Correlation (NCC) is the basic statistical approach to match images. NCC is used for template matching or pattern recognition. A template can be considered from a reference image, and an image from a scene can be considered as a source image. The objective is to establish the correspondence between the reference and source images. The matching gives a measure of the degree of similarity between the image and the template. A problem with NCC is its high computational cost and occasional mismatching. To deal with this problem, this paper presents an algorithm based on the Sum of Squared Difference (SSD) and an adaptive template matching to enhance the quality of the template matching in object tracking. The SSD provides low computational cost, while the adaptive template matching increases the accuracy matching. The experimental results showed that the proposed algorithm is quite efficient for image matching. The effectiveness of this method is demonstrated by several situations in the results section.

• International Journal of Advanced Culture Technology
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• 제8권1호
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• pp.62-70
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• 2020

As an effective means of price discrimination, some suppliers offer trade credit to the distributors in order to stimulate the demand for the product they produce. The availability of the delay in payments from the supplier enables discount of the distributor's selling price from a wider range of the price option in anticipation of increased customer's demand. Since the distributor's lot-size is affected by the demand for the customer, the distributor's lot-size and the selling price determination problem is interdependent and must be solved at the same time. Also, in many common business transactions, the distributor pays the shipping cost for the order and hence, the distributor's ordering cost consists of a fixed ordering cost and the shipping cost that depend on the order quantity. In this regard, we deal with the joint lot-size and price determination problem when the supplier allows delay in payments for an order of a product. The positive effects of credit transactions can be integrated into the EOQ (economic order quantity) model through the consideration of retailing situations, where the customer's demand is a function of the distributor's selling price. It is also assumed that the distributor's order cost consists of a fixed ordering cost and the variable shipping cost. We formulate the distributor's mathematical model from which the solution algorithm is derived based on properties of an optimal solution. A numerical example is presented to illustrate the algorithm developed.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2009년도 추계학술발표대회 논문집
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• pp.11-16
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• 2009

Public rental apartment has suffered social exclusion problem, stemmed from its closed planing for a very specific range of the disadvantaged population. Thereby, it has been recognized as a disliked residential facility. To alleviate this problem, various approaches have been tried such as ownership-tenant mixture, and different unit size mixture. The purpose of this study is to grasp the expected social relation among neighboring residents according to socially integrative planing elements such as ownership, unit size and family life cycle match. Thirty eight graduate students in architecture and housing field responded to the questionnaire which was specifically made to identify relations of 28 neighboring situations based on $2{\times}2{\times}2$ variable composition. Frequency, percentage and MDS(multidimensional scaling) were used to analyze data. As a result, the order of preferred matchy were identified. The match between rental/small/children group and ownership/middle/children group was turned out to be the most desirable while the match between rental/small/children family group and rental/small/elderly group was found the least desirable. Spatial representations of the relationships among 8 household types were delineated. In conclusion, the definite patterns of the favorable and unfavorable match were found. This result is expected to be used as a reference in developing a strategic match to promote the rental apartments social integration in Korea.

• 응용통계연구
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• 제11권1호
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• pp.65-81
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• 1998

많은 실증분석에 사용되고 있는 연립방정식모형은 연구대상분야의 구조를 더욱 현실에 가깝게 표현하고 또 상세한 분석을 위해 점차 복잡해지고 대형화되어 가는 추세다. 그러나 이러한 다중방정식체계의 설정시, 각 회귀방정식이 결합되어 동시에 추정될 때 발생할 수도 있는 모형체계의 구조적 불안정성으로 인해 추정된 모형의 사용 및 그에 따른 분석은 오류를 가져올 수 있다. 특히 시뮬레이션 수행이 무의미해질 가능성이 있음에도 연립방정식모형을 사용하는 대부분의 연구들이 이러한 모형의 구조적 안정성문제를 간과하고 있는 실정이다. 따라서 본 연구에서는 동태적 관점에서 모형체계의 안정성 진단을 위한 조건을 제시하여 보고, 실제의 연립방정식모형을 예로 들어 적용시켜 본 후 그 결과가 모형의 구조적 특징에 관해 어떠한 유용한 정보를 제공하여 주는가를 추가로 분석하여 보았다.

• 자원환경지질
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• 제23권1호
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• pp.73-79
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• 1990

Controlled source audio-frequency magnetotelluric (CSAMT) has the great advantage of efficient mapping resistivity distribution and relatively deep depth of investigation. Moreover, CSAMT may be regarded more attractive than audio-frequency magnetotelluric in the sense of the strong and controllable signal. However, it has the problem such as undershoot and/or near-field effect that is hard to be interpreted if the interpretation method of MT is directly applied. The problem arises from the existance of controlled source which makes CSAMT attractive. So the characteristics of CSAMT response should be thoroughly understood prior to interpretation stage. In this study, numerical modeling program for horizontally layered earth was developped for the interpretation of CSAMT field data. CSAMT field survey was run as a follow-up to resistivity dipole-dipole study over the same survey line at Bongmyung coal mine. The survey used a grounded dipole source 2 Km in length and located 7.5Km south in this study. A good agreement between field CSAMT data and calculated data was demonstrated even in geologically complex earth situations.

• 한국콘텐츠학회논문지
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• 제11권12호
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• pp.785-799
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• 2011

본 연구는 지역복지를 극대화하는 지방자치시대에 있어 지역주민으로서 갖추어야 할 시민의식 형성에 영향을 미치는 요인들에 대해 파악하였다. 즉, 지역사회 문제인식의 정도, 개인의 가치 및 태도, 그리고 사회활동 참여여부 등이 민주시민의식 형성에 어떠한 영향을 미치고 있는지 살펴봄으로써 지역사회의 상황과 현실에 맞춘 성숙한 시민의식 형성에 기여하고자 하였다. 조사는 용인시에 거주하는 20세 이상의 지역주민 600명을 대상으로 비례확률층화표집 하였다. 연구결과, 경제 환경문제인식, 노인문제인식 등 지역사회문제를 높이 인식하고, 사회적성취욕구, 자아인식, 문화적 가치지향 정도가 높고, 사회활동에 참여할수록 긍정적인 시민의식 형성이 높은 것으로 나타났다.