• Magazine of the Korea Concrete Institute
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• v.23 no.4
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• pp.55-57
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• 2011

• Proceedings of the KSRS Conference
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• 2000.04a
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• pp.19-25
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• 2000

• Proceedings of the Korean Statistical Society Conference
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• 2002.05a
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• pp.7-12
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• 2002

경제활동인구조사에서 시군구의 실업자를 추정하는데 소지역 추정법을 이용하는 방안에 대한 연구는 관심의 대상이 되고 있다. 본 연구에서는 합성 추정법과 복합 추정법을 이용한 시군구 실업통계 작성법을 소개하였고 추정량이 편향이므로 잭나이프 방법을 이용한 추정량의 정도를 계산하는 절차를 설명하였으며, 광주광역시의 구별 실업통계작성을 사례로 제시하였다.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2002.10a
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• pp.82-83
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• 2002

1999년 전남 여수지역의 가막만에서 양식한 굴을 원료로 가공한 통조림과 냉동품은 강한 쓴맛을 나타내었으며, Lee(1995)는 이들 굴로부터 쓴맛 성분을 분리 정제하여 5개의 peptide를 분리하여 보고하였다. 이들 성분은 쓴맛 이외에는 별다른 활성이 없었고, 그 후에도 이러한 사례는 보고되지 않아 대수롭지 않게 생각하였으나, 이중양적으로 많았던 1개의 성분에 대하여 발견된 지역인 가막만의 명칭에 유래하여 Gamakamide-E로 명명하고 NMR 및 합성에 의하여 구조를 해명하였기에 보고한다. (중략)

• The Mathematical Education
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• v.58 no.2
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• pp.239-262
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• 2019

This study deals with the anxieties that originated from specific student questions. Through the analysis of the textbooks, we confirmed that the question was a sufficiently plausible question. Third interviews were also held with three high school students. Through the interviews, we analyzed students' expressions about the new correspondence relationship that the two correspondence relations are linked. In the determination of the composite function and the determination of the inverse function existence, We have observed a case of how the worries about domain are being reconstructed from students into meaningful mathematical knowledge. Through this, we confirmed that the question will be confusing to students in the field. In this study, we observed the transfer of domain in relation to student domain in composite function. In particular, a present study revealed that the students involved in the interview were influenced by this domain transfer phenomenon in determining whether the task given in the interview was a function. This was the same in determining the existence of a inverse function. The examples presented in this study are limited to specific cases in limited circumstances. Therefore, it can not be applied directly to teaching and learning situations. However, it is expected that this study will provide other researchers with insight into function learning related research.

• Communications of Mathematical Education
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• v.37 no.2
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• pp.277-297
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• 2023

In mathematics, the concept of convolution is widely used. The convolution operation is required for understanding computer vision and deep learning in artificial intelligence. Therefore, it is vital for this concept to be explained in college mathematics education. In this paper, we present our new teaching and learning materials on convolution available for engineering mathematics. We provide the knowledge and applications on convolution with Python-based code, and introduce Convolutional Neural Network (CNN) used for image classification as an example. These materials can be utilized in class for the teaching of convolution and help students have a good understanding of the related knowledge in artificial intelligence.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2002.11a
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• pp.47-52
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• 2002

본 연구에서는 PSC 빔교의 안전성 검토에 대한 기초자료를 제공하기 위하여, PSC 빔교의 구조안전성 검토 과정 및 방법에 대한 사례를 연구하였다. PSC 빔교의 구조안전성 평가를 위하여 대상 PSC 교량을 선정하여 단면특성 계산, 하중계산, 구조체에 대한 모델링, 하중조합 등의 일련의 구조해석을 수행하였으며, 설계하중 작용시 구조물의 각 부재에 발생되는 최대 단면력을 산출하였다. 본 연구에서는 최종적으로 이들 구조해석 결과를 이용하여 PSC 빔교의 슬래브 및 슬래브와 PSC 빔의 합성단면에 대한 구조안전성을 강도설계법으로 검토하였다.

• The Journal of the Acoustical Society of Korea
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• v.13 no.5
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• pp.51-58
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• 1994

These times many kinds of man-machine Interfaces using speech signal, speech recognizers or speech synthesizers, are proposed and utilized in practice. Especially speech synthesis system is widely used in our life. But its assessment method is still in its first stage. In this paper we propose a method to generate multi-syllable nonsense wordset for the purpose of synthetic speech assessment and applies the wordset to one commercial text-to-speech system. Some results about the experiment is suggested and it is verified that the method to generate a nonsense wordset can be used to assess the intelligibility of the synthesizer in phoneme level or in phonemic environmental level.

• Journal of Internet Computing and Services
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• v.7 no.2
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• pp.1-8
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• 2006

Study of effective synthesis has been amplified in working-level image process corresponding to one of postproduction synthesis ares. However, it is very role to recognize the overall procedure of image composition and unprepared state on a research on variety and complexity for the specific composition method, it is necessary to materialize the overall pattern that can understand stream of image and standardization. In order to embody, it may be desirable that improve working efficiency of database by form called resources. In this paper, by providing the several values such as matte, key, motion, scale, position, or opacity characteristics, we directed th solving problems through the detailed examples while the user has the difficulty on image synthesis.

• Convergence Security Journal
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• v.23 no.5
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• pp.189-197
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• 2023

The Republic of Korea Army (ROK Army) is currently developing the Army Synthetic Battle Training System (ASBTS) by 2026 and will use it to advance division-level LVC integrated training. This study proposes a way to improve the effectiveness and efficiency of training by applying VR/AR technology to the ASBTS. To this end, we analyzed cases of VR/AR technology use in the defense field in advanced countries and the ROK military. As a result, we confirmed that the effectiveness and efficiency of training can be improved when the training system is converted to an immersive system. Accordingly, we selected and presented defense training subjects to be applied to VR/AR technology, considered the development direction for applying VR/AR technology to the ASBTS, and proposed a way to apply VR/AR technology to the ASBTS.