• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2008년도 추계학술대회 논문집
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• pp.341-342
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• 2008

• 한국군사과학기술학회지
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• 제19권6호
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• pp.789-796
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• 2016

In the Core Technology R&D of the defence area, the development of the related core element technology could be the foundation to develop advanced weapon system in the future. But it might make various problems if you can not accurately define the TRL of the element technology. In other words, if the technology is not sufficiently mature and then the project starts, it might require an increase in the development period and additional cost. Finally the system will be in an incomplete state and result in user dissatisfaction and the project failure. Therefore it is a very important task to properly assess the TRL for a successful project. In this study, We propose the method for risk management of core technology R&D project of the defence area using the QFD process with degree of difficulty and technology readiness level. It is also presented the process to determine the risk level using TRL and Degree of difficulty. Finally We apply this method to UGV system for verifying the result of this study.

• 대한두개안면성형외과학회지
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• 제18권2호
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• pp.97-104
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• 2017

Background: Nasal bone fracture is one of the most common facial bone fracture types, and the surgical results exert a strong influence on the facial contour and patient satisfaction. Preventing secondary deformity and restoring the original bone state are the major goals of surgeons managing nasal bone fracture patients. In this study, a treatment algorithm was established by applying the modified open reduction technique and postoperative care for several years. Methods: This article is a retrospective chart review of 417 patients who had been received surgical treatment from 2014 to 2015. Using prepared questionnaires and visual analogue scale, several components (postoperative nasal contour; degree of pain; minor complications like dry mouth, sleep disturbance, swallowing difficulty, conversation difficulty, and headache; and degree of patient satisfaction) were evaluated. Results: The average scores for the postoperative nasal contour given by three experts, and the degree of patient satisfaction, were within the "satisfied" (4) to "very satisfied" (5) range (4.5, 4.6, 4.5, and 4.2, respectively). The postoperative degree of pain was sufficiently low that the patients needed only the minimum dose of painkiller. The scores for the minor complications (dry mouth, sleep disturbance, swallowing difficulty, conversation difficulty, headache) were relatively low (36.4, 40.8, 65.2, 32.3, and 34 out of the maximum score of 100, respectively). Conclusion: Satisfactory results were obtained through the algorithm-oriented management of nasal bone fracture. The degree of postoperative pain and minor complications were considerably low, and the degree of satisfaction with the nasal contour was high.

• 대한가정학회지
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• 제38권10호
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• pp.27-43
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• 2000

The CDP in Korea has been enforced for conserving resources and reducing environmental pollution since March, 1999. Therefore this thesis aims to investigate the degrees of consumer participation(CP), recognition and support, and to analysis of demographic variables, consumers' psychology, and attitudes which may influence the degrees of CP recognition, and support for the CDP. The results were as follows: First, the time of surrey was found to be statistically significant in consumer recognition and support. The degree of recognition was the lowest in first time. And the degree of consumer support was the highest in first time. Second, education, employment status and house shape were found to be statistically significant. The degree of consumer recognition was the highest among junior college graduates. The employed group was found to be the highest in the degree of participation. Third, the significant factors which influenced the degree of recognition was the time of survey, the perceived difficulty, effectiveness of the Consumer Deposit Program. The perceived difficulty, the time of survey were found to be related with the degree of consumer support. The most influential variables which influenced the degree of consumer participation were house shape, the perceived effectiveness, the degree of resource recycling, job and the degree of consumer recognition.

• 인지과학
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• 제34권1호
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• pp.21-38
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• 2023

본 연구는 인출 연습의 난이도 수준과 범주와 범주 내 자극의 연합강도가 기억억제에 미치는 효과를 알아보기 위해 수행되었다. 기존의 연구들은 대부분 인출 연습 범주 내 비 인출 연습 단어의 연합강도나 정서가, 물리적 특성 조작을 통해 같은 인출 연습 동안 떠오르는 정도를 조작해 억제가 이루어지는지 연구되었다. 따라서 인출 연습 시 인출 자극의 인출 정도의 난이도가 달라질 때 어떻게 억제가 발생되는지 연구될 필요성이 있다. 인출의 난이도는 인출 학습 시 제시되는 떠올려야 하는 단어의 자음과 모음의 제시 정도를 통해 어려운 조건, 보통 조건, 쉬운 조건의 세 수준으로 조작되었다. 또한 추가적으로 범주와 범주 내 단어들 간의 연합강도가 조작되었다. 기존의 연구에서는 범주와 범주 내 단어들 간의 연합강도가 강한 조건에서는 인출 유도 망각이 발생된 반면, 범주와 범주 내 단어들 간의 연합강도가 약한 조건에서는 인출 유도 망각이 발생되지 않았다. 본 연구에서는 인출 난이도에 따라 억제 과정이 다르게 나타날 경우 범주와의 연합강도에 따라 기존의 연구결과와 다르게 나올 가능성을 탐구하였다. 연구 결과 범주와 범주 내 단어들의 연합강도가 강한 조건에서는 인출 난이도가 어려운 조건과 보통 조건에서 인출 유도 망각이 관찰된 반면, 인출 난이도가 쉬운 조건에서는 인출 유도 망각이 관찰되지 않았다. 그리고 연합 강도가 약한 조건에서는 인출 난이도가 어려운 조건에서 인출 유도 망각의 경향성을 보인 반면, 난이도가 보통 조건과 쉬운 조건에서는 인출 유도 망각이 나타나지 않았다. 이러한 결과는 인출 난이도에 따라서 기억 억제가 다르게 나타날 가능성이 시사된다.

• Journal of the Korean Data and Information Science Society
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• 제17권2호
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• pp.335-344
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• 2006

The purpose of this paper is to apply data mining method for the inbound call center optimization. Data mining analysis is come to be used in order to predict the degree of difficulty on the consultation. It is the method of maximal efficiency for the call center that uses of the predicted degree of difficulty and customer grade as routing which hits to the skill of the consultation unit. This method is to get the possibility of efficiency for the call center with the maximum efficiency.

• 대한지구과학교육학회지
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• 제5권3호
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• pp.245-255
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• 2012

The purposes of this research are to analyze preservice elementary teachers' degree of difficulty in classes of seasonal variation and suggest the measures of classes so that preservice elementary teachers can progress classes of seasonal variation effectively. To achieve them, the research was conducted for 90 first graders completing teaching method of elementary science in P university of education from Sep. to Dec. 2012. This research was conducted, based on the results of in-depth interview for 9 preservice elementary teachers who performed classes of seasonal variation, survey on the degree of class difficulty and evaluation of classes on 8 classes theme of Earth sector in elementary science. The results of this research are as follows. The first, preservice elementary teachers had relatively high class difficulty for teaching seasonal variation among the sector of the earth in elementary science. The second, in the evaluation of preservice elementary teachers' classes, the more the subject showed high class difficulty, the more the score of class evaluation was low. The reason is analyzed that high class difficulty reduces teacher's confidence. The third, preservice elementary teachers had insufficient knowledges and concepts which are basically necessary for the classes of seasonal variation. Especially, it was more serious for preservice elementary teachers who didn't learn Earth-science during their high school time. The fourth, it is necessery that concrete and systematical teaching method should be developed so as to improving preservice elementary teachers' teaching method for the classes of seasonal variation.

• 인터넷정보학회논문지
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• 제10권3호
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• pp.151-157
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• 2009

많은 이러닝 시스템들은 기존의 설정된 문항난이도를 기반으로 학습자에게 학습정보를 제공하고 있으며, 학습자는 정해진 학습과정에 따라 학습을 수행하고 있다. 이는 학습과정 중에서 학습자마다 학습을 이해하는 정도가 다름에도 불구하고 학습자는 정해진 난이도와 학습과정을 따라야 함으로 효율적인 학습효과를 나타내기 어렵다. 본 연구에서는 학습자가 학습과정중에 이해하는 정도를 시스템이 파악하여 능동적으로 난이도 및 학습과정을 조절하는 학습자 적응형 이러닝 시스템을 제시하고자 한다. 이를 통하여 학습자는 오프라인에서의 학습과 같은 대화형 학습을 통해 온라인 학습이 가져오는 획일적 학습에서 벗어나 보다 높은 학습효과를 높일 수 있다.

• 아동학회지
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• 제23권6호
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• pp.33-47
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• 2002

This study examined the effects of conditions of generation(0, 1, or 2 cognitive operations) and task difficulty in children's recall. Subjects were 40 children in each age group, 8-year-olds and 10-year-olds. Each subject was shown 12 simple or difficult multiplication problems in one of the conditions of generation. After a buffer task, subjects were required to recall correct answers to the problems in random order. The data were analyzed by ANOVA and simple main effect analyses. Results showed that generation effect(GE) occurred among children younger than 12, and GE improved with age. Learning from cognitive operations was more effective than learning through simple repetition. Easier tasks led to greater GE, a phenomenon explained by procedures used in this study.

• 한국의류산업학회지
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• 제19권5호
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• pp.559-568
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• 2017

The purpose of this study was to identify the socio-psychological variables and demographic factors influencing the difficulty people may have in discarding fashion goods. In addition, differences of disposal behavior were investigated according to the degree of reported difficulty with which people discarded fashion goods. A total of 260 survey questionnaires were analyzed. Frequency, correlation, exploratory factor analysis, reliability, t-test and multiple regression analyses were used for data analysis using SPSS 22.0. The study results were as follows. First, the difficulty of discarding of fashion goods was positively affected by concern for the environment and the potential for creative reuse of fashion goods, whereas it was not influenced by interdependence. Second, there were differences in the difficulty with which people discarded fashion goods according to demographic factors such as gender and whether or not they held certain religious beliefs; however, there were no differences among other demographic factors. Third, the group demonstrating a high degree of difficulty in discarding fashion goods preferred certain disposal behaviors such as donating to religious organizations, schools, charities etc., exchanging with other people or bartering, reforming for other purposes, selling to secondhand shops or on the internet, storing without wearing it, or discarding it after salvaging reusable parts. The results of this study provide various guidelines for consumers and retailers of fashion products who are interested in the efficient disposal of fashion goods.