• 한국콘텐츠학회논문지
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• 제10권9호
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• pp.212-219
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• 2010

서울시립대학교박물관 2010년 기획전시에 디지털매체가 어떻게 활용되었는지에 대한 것을 살펴보았다. 분석 결과 전시 내용에 적절하게 다양한 형식으로 영상 음향매체가 활용되고 있었으며, 특히 전시공간 연출에 있어서의 디지털매체 활용의 측면은 앞으로 다양한 전시에 적극적으로 활용되어져야 할 것이다. 하지만 관람객과의 상호작용성면에 있어서의 효과를 확인할 수 없었다. 디지털매체의 표현방법의 다양화를 통해 전시내용의 효과적인 전달과 엔터테인먼트적인 효과로 관람객이 지루해 하지 않고 재방문을 하도록 유도해야 한다. 전시에 음향매체를 활용한 것은 영상매체 보다 더 강렬한 자극을 이끌어 낼 수 있고, 다른 전시매체와의 복합 연출에 따른 효과는 더욱 컸다고 볼 수 있다. 하지만 관람객에게 일방향성 정보제공으로 잘못 활용되어질 수 있으므로 단독 음향의 지향성 스피커나 헤드폰 등의 기술적 제고가 이루어져야 할 것이다.

• 한국학교수학회논문집
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• 제15권3호
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• pp.411-428
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• 2012

미래 사회에 대비하고 적응하기 위하여 창의성에 대한 요구가 한층 높아지고 있다. 이에 학교 수학에서 학생들의 창의성을 길러줄 수 있는 다양한 노력이 계속되고 있다. 특히 문제 만들기는 수학적 창의성을 길러줄 수 있는 좋은 방법이다. 따라서 본 연구에서는 수학문제 만들기 활동의 결과물을 이용하여 학생들의 수학적 창의성을 분석하였다. 이를 위해 초등학교 3학년 상 수준 5명, 중 수준 7명, 하 수준 4명을 포함한 16명 학생을 연구 대상으로 문제 만들기 활동을 하고, 학생들이 만든 문제를 이용하여 학생들의 수학적 창의성을 분석하였다. 이를 통해 다음과 같은 결과를 얻었다, 첫째, 창의성 점수의 평균에서는 상, 중, 하의 성취 수준에 비례하여 나타났다. 둘째, 학생들이 만든 문제의 수에서는 상, 중, 하 수준의 학생들 간에 큰 차이가 나타나지 않았다. 셋째, 학생들은 세 수준 모두에서 조건을 변경하여 문제를 만드는 비율이 높았고, 이런 현상은 상, 중, 하 순으로 갈수록 더 높게 나타났다.

• 유통과학연구
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• 제16권4호
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• pp.67-74
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• 2018

Purpose - Most of the amendments to the law on the improvement of the distribution structure of mobile communication terminal equipment, the fully self-sufficient system of terminals, and the separated disclosure system on the terminals are aimed at securing transparency of the distribution structure by eliminating or reducing handset subsidies. This study investigates what items are important for the purchase of mobile phones in various and rapidly changing mobile phone markets from the consumer's point of view and tries to make a strategic suggestion for future mobile distribution strategies. Research design, data, and methodology - The procedure of this study takes place in four steps. In step 1, only the SF type respondents selected for this study were extracted through MBTI analysis. In step 2, they were divided into three hierarchies for the AHP analysis and each element was arranged. In step 3, the AHP analysis was converted to a Fuzzy-AHP number using the trigonometric centroid method. This was to eliminate the ambiguity of the response by converting into a fuzzy number even if data consistency was maintained with CI value below 0.1. In step 4, the number of converted 2-layer and 3-layer was combined to derive the priority when the final handset is selected. Results - First, the highest importance among the four items in the second tier was the terminal function item, followed by brand, price, and design item. Second, in the third tier, the highest importance was level of after-sales service, followed by device price, processing speed, ease of use, usefulness, and rate system. Third, the arithmetic average of the determinant of the fuzzy function showed that processing speed, ease of use and usefulness in the function item, level of after-sales service in the brand item, and device price in the price item were the five most important factors among 16 choice factors. Conclusions - First, there will be a change in the consumption patterns of consumers who have compared distributors and dealers to purchase handsets with more subsidies. Second, it is highly likely that people will purchase new handsets only when they need to change their devices because they can not receive subsidies by switching phone brands any more.

• 대한한의학원전학회지
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• 제23권6호
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• pp.97-108
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• 2010

Salt is a vital inorganic substance to human body and is seasoning in food. It is an absolute alternating factor on fermented food. What's more, in the oriental medicine, it is widely used to raise the pharmacological effect as a component of a prescription when processing a medicine, and when taking the medicine. Though, Importance of salt is often unaware and it is not used in the right way. focusing on "東醫寶鑑 內景篇 Donguibogam-Naegyeong" I categorized the methods of salt's prescription, dose, processing, seasoning, etc. The contents were compared and studied as well. When salt is used as a medicine, It is used as a main medicine, complimentary(aid) medicine, Jjim-Jil(hot towel or bath etc), vomiting medicine and gargling water. when taking the salt water with other medicine, depending on the type of the medicine, boiled salt water, warm alcohol or salt water, mixing powder medicine with salt water etc The methods are diverse. The reason to process medicine with salt or salt water is to bring the pharmacological Qi(energy) down to increase remedial value. When processing a medicine, kneading dough with salt water and the case using food ingredient as medicine salt was used as seasoning. Kneaded mud with salt were used to cover medicine or on the outer surface. This proves that it prevents the dryness and helps the medicine cooked even. Like this, salt is vital and highly-valued medicine in the oriental medicine. learning the right method of using salt and if it were used properly It is considered that it would increase the Pharmacological effect.

• 통상정보연구
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• 제15권2호
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• pp.163-185
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• 2013

본 논문은 한국항공주식회사 분사기업과 비분사기업의 구별에 따른 한국 항공 중소기업들이 개방형혁신 특성을 개별사례를 중심으로 분석하고 있다. 한국항공주식회사 분사기업 여부에 따른 항공 중소기업들의 개방형 혁신 특성이 차이가 나는가? 그렇다면 구체적으로 어떠한 차이가 존재하는가? 하는 연구문제에 대한 답을 구하고 있다. 특히 한국 항공산업 클러스터의 대표지역인 사천지역의 항공 중소기업들에 대한 심층 인터뷰를 통해서 연구문제에 대한 답을 구한다.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회/대한산업공학회 2003년도 춘계공동학술대회
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• pp.208-216
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• 2003

ISO 14649 (data model for STEP-NC) is a new interface scheme or language for CAD-CAM-CNC chain under established by ISO TC184 SCI. Up to this point, the new language is mainly made for milling and turning, and other processes such as EDM will be completed in the future. Upon completion, it will be used as the international standard language for e-manufacturing paradigm by replacing the old machine-level language, so called M&G code used since 1950's. With the rich information contents included in the new language, various intelligent functions can be made by the CNC as the CNC knows what-to-make and how-to-make. In particular, On-Machine Inspection required for quality assurance in the machine level, can be done based on the information of feature­based tolerance graph. Previously, On-Machine inspection has been investigated mainly for milling operation, and only a few researches were made for turning operation without addressing the data model. In this thesis, we present a feature-based on-machine inspection process by the 4 Tasks: 1) proposing a new schema for STEP-NC data model, 2) converting the conventional tolerance scheme into that of STEP-NC, 3) modifying the tolerance graph such that the tolerance can be effectively measured by the touch probe on the machine, and 4) generating collision-free tool path for actual measurement. Task 1 is required for the incorporation of the presented method in the ISO 14649, whose current version does not much include the detailed schema for tolerance. Based on the presented schema, the tolerance represented in the conventional drafting can be changed to that of STEP-NC (Task 2). A special emphasis was given to Task 3 to make the represented tolerance accurately measurable by the touch probe on the machine even if the part setup is changed. Finally, Task 4 is converting the result of Task into the motion of touch probe. The developed schema and algorithms were illustrated by several examples including that of ISO 14649 Part 12.

• 보건교육건강증진학회지
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• 제24권1호
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• pp.17-28
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• 2007

Objective: To find the relevant stress factors of male and female employees. Method: The survey was collected from April 7th to May 10th in 2006 by formalized questionnaires targeted on male and female employees. The research used both quota sampling and accidental sampling to collect the data. Results: 1) It was found that relevant factors are related with ages in general traits for male employees and associated with ages, marital status and education level in general traits for female employees. In other words, age is the primary factor for both male and female employees at age 20s, and as the marital status is single and the education level is lower, the stress level is higher for female employees. 2) Occupation is the main relevant stress factor for male employees in employment traits and the period of employment, working hour and wages are relevant stress factors to the level of stress for female employees. That is to say, manufacture related job shows higher level of stress than other jobs for both male and female employees. As period of employment and working hour is shorter and wages are less, it appears to be high stress level for female employees. 3) It presents that stress level is decided based on if he exercises regularly or keeps regular hours for male employees in lifestyle aspect and it also shows drinking is an additional relevant stress factor to conclude the level of stress for female employees. So to speak, as the regular exercise is performed and regular hours are kept, it comes out low level of stress for both. In addition, it shows lower stress level from the group of female employees who do not drink than the other. Conclusion: The research is summarized that no matter what gender you are, both male and female employees should try to have a positive lifestyle. Specially, the research concludes that the regular exercise is the best way to get rid of stress.

• 한국컴퓨터정보학회논문지
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• 제13권6호
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• pp.173-180
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• 2008

공인전자문서보관소는 전자기록의 진본성을 확인하고 보장하는 제도로서 법적인 보호 아래 보관되며, 전자기록 사항을 진정한 것으로 추정하고 전자기록의 내용이 변경되지 않았음을 입증한다. 그러나, 전자기록은 매체의존도가 높고 정보의 유실위험이 매우 높은 문제점을 가진다. 또한, 정보의 첨삭(첨부와 삭제)과 수정이 용이하기 때문에 전자기록의 진본성과 무결성에 대한 문제가 야기되고 있다. 현존하는 시스템에서는 다음과 같은 비효율성을 드러내고 있다. 원본성 보장을 위한 기존의 전자문서 암호화 방법은 하나의 대칭키로 전체 문서의 암호화 과정을 수행하며, 중간에 수정되어지는 정보가 발생시에는 해당 문서 전체 내용을 재스캔 및 재암호화 과정을 수행해야 한다. 이러한 비효율성을 극복하기 위해, 본 논문에서는 등록 요청된 전자문서에 대해 페이지의 연관성을 기반으로 하는 Link 정보를 이용하여 암호화하고 관리함으로써 해당 문서의 부분 정보 수정 요청시 발생하는 비용적 효율성을 극대화시켰으며, 키 관리의 복잡도를 증가시켜 정보 노출에 따른 문제점을 최소화함으로써 보안성을 향상시켰다.

• 한국수학교육학회지시리즈A:수학교육
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• 제46권3호
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• pp.331-349
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• 2007

This study aims to improve the teaching and learning method on the conic sections. To do that the researcher analyzed the impact of dynamic geometry software on students' problem solving of the conic sections. Students often say, "I have solved this kind of problem and remember hearing the problem solving process of it before." But they often are not able to resolve the question. Previous studies suggest that one of the reasons can be students' tendency to approach the conic sections only using algebra or analytic geometry without the geometric principle. So the researcher conducted instructions based on the geometric and historico-genetic principle on the conic sections using dynamic geometry software. The instructions were intended to find out if the experimental, intuitional, mathematic problem solving is necessary for the deductive process of solving geometric problems. To achieve the purpose of this study, the researcher video taped the instruction process and converted it to digital using the computer. What students' had said and discussed with the teacher during the classes was checked and their behavior was analyzed. That analysis was based on Branford's perspective, which included three different stage of proof; experimental, intuitive, and mathematical. The researcher got the following conclusions from this study. Firstly, students preferred their own manipulation or reconstruction to deductive mathematical explanation or proving of the problem. And they showed tendency to consider it as the mathematical truth when the problem is dealt with by their own manipulation. Secondly, the manipulation environment of dynamic geometry software help students correct their mathematical misconception, which result from their cognitive obstacles, and get correct ones. Thirdly, by using dynamic geometry software the teacher could help reduce the 'zone of proximal development' of Vigotsky.

• 대한토목학회논문집
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• 제30권3A호
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• pp.257-264
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• 2010

일반적으로 대형구조물의 건전성평가에 있어 중요한 인자인 변위를 추정함으로써 구조물의 성능 저하 및 노후도를 판단하는 근거가 된다. 그러나 변위응답의 계측이 중요함에도 불구하고 계측 방법의 부재로 말미암아 현수교와 같은 대형구조물의 변위응답을 측정하는 방법이 용이치 않은 것이 현실이다. 본 논문에서는 변형률신호로부터 변위응답을 추정하는 방법인 모드분해기법을 제시하였다. 모드분해기법은 등가정적 변위응답과 구조물의 주요거동을 나타내는 저차모드의 변위응답을 합하여 최종변위응답을 추정하는 방법이다. 변형률신호의 계측시 전기저항식 변형률센서를 사용할 경우 전기적 노이즈 문제가 발생할 소지가 크며, 측점이 많아질수록 경제적 부담감이 커진다. 이런 문제점을 극복하기 위하여 전기적 노이즈의 영향이 없고 다중측정이 가능한 광섬유 브래그 격자 센서를 사용하였다. 현수교와 플레이트거더교의 동재하실험을 통하여 모드분해기법의 사용성을 검토하였다.