• Journal of Digital Convergence
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• v.17 no.3
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• pp.439-448
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• 2019

The purpose of this study was to investigate factors affecting the pros and cons of 'Jol-hon' among workers. For this purpose, 288 workers were surveyed in Chungnam area. The main result are as follows. First, there were positively significant correlation among a hope, growth mindset, and organizational communication. Second, according to the discrimination analysis, the lower the age, the unmarried, the lower the hope, and the lower the organizational communication, the more favorable the 'Jol-hon'. In the case of married persons, there was no difference between the groups favoring and rejecting 'Jol-hon'. In the case of unmarried people, the lower the organizational communication, the more favorable the 'Jol-hon'. Finally, this study will present the theoretical basis for studying 'Jol-hon' in the future and suggest the policy implications to solve middle and senior couple problems.

• Journal of the Korea Computer Industry Society
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• v.3 no.9
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• pp.1177-1188
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• 2002

To classify real time Lead pin images in this paper, The image acquisition system was composed to C.C.D, image frame grabber(DT3153), P.C(PentiumIII). I proposed image processing algorithms. This algorithms were composed to real time monitoring, Lead Pin image acquisition, image noise deletion, object area detection, point detection and pattern classification algorithm. The raw images were acquired from Lead pin images using the system. The result images were obtained from raw images by image processing algorithms. In implemental result, The right recognition was 97 of 100 acceptable products, 95 of 100 defective products. The recognition rate was 96% for total 200 Lead Pins.

• Journal of Internet of Things and Convergence
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• v.10 no.2
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• pp.103-108
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• 2024

In this paper, a smart elevator system was studied using real-time object detection technology based on YOLO(You only look once)v5. When an external elevator button is pressed, the YOLOv5 model analyzes the camera video to determine whether there are people waiting, and if it determines that there are no people waiting, the button is automatically canceled. The study introduces an effective method of implementing object detection and communication technology through YOLOv5 and MQTT (Message Queuing Telemetry Transport) used in the Internet of Things. And using this, we implemented a smart elevator system that determines in real time whether there are people waiting. The proposed system can play the role of CCTV (closed-circuit television) while reducing unnecessary power consumption. Therefore, the proposed smart elevator system is expected to contribute to safety and security issues.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10a
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• pp.781-783
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• 2004

본 논문에서는 컴퓨터 상에서의 처리되는 한글 코드 중 유니코드를 이용한 한글 입력방법을 분석하여, 이를 일련의 프로그램에서 초ㆍ중ㆍ종성에 따라 자/모음을 분리, 구별하는 방법을 제안하고, 이에 따라, 제안된 방법을 적용한 구현 프로그램을 통해 정확한 자/모음 분리를 할 수 있었으며, 한글 입력에서의 정확도와 신뢰도 향상 및 단어에 따른 정확한 조사판별이 가능해 짐을 알 수 있었다. 또한, 제안방법에 따른 통계적 데이터를 가지고 각종 분야에 적용이 가능하게 됨을 알 수 있었다.

• The Journal of the Convergence on Culture Technology
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• v.7 no.1
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• pp.570-575
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• 2021

Since humans live while feeling rich in their five senses, care must be taken not to damage their hearing in order to lead a happy life. Hearing damage suffered in a living environment is common in a partial band where a specific frequency band is first damaged. However, since the initial pain of hearing damage does not appear much, it is difficult to determine the symptoms in the early stages. In this paper, we proposed a high-speed measurement method that can easily and quickly self-measure hearing damage through a simple app. In this method, 9 pure tones compensated for gain for each voice soub-band are alternately heard in both ears, so that one's own hearing damage can be detected at high speed. When 18 tone pulses were heard for 30 seconds per person, 1 out of 12 subjects was identified as suspected of partial hearing damage. And when the test subjects were informed of the hearing determination method for the number of hearings, the participants themselves immediately determined whether their hearing was damaged. This measurement method simply judges the hearing of both ears within 30 seconds with a smart phone, so that hearing measurements that took more than 10 minutes in hospitals are relatively accurate, and it was found that hearing health can be maintained while reducing time and costs.

• Journal of Embryo Transfer
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• v.14 no.1
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• pp.3-5
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• 1999

이식 전 수정란의 성판정은 많은 축산인의 소망이었다. 많은 방법이 제기되었지만, 세포유전학적 분석방법은 ET의 상용화에 거의 무의미할 정도로 한계가 많았고, 이후 개발된 응성 특이적 항원이나 X-염색체에서 발현되는 효소의 활동을 통한 성판정 방법은 흥미롭기는 하나 산업적 적용에 제약이 많았다. 80년대 중반 Y-염색체 특이적인 DNA 탐침자의 개발과 PCR을 통한 DNA증폭기술의 개발은 수정란 성판정을 획기적으로 개선시켰다. DNA기술을 통한 수정란의 성판정은 분자생물학을 현장으로 진출시킨 첫 경우이기도 했다. 90년대에 세포유전학적 분석에서 FISH가 소개되었으며, 염색체 특이적 library는 다른 기초적이고 응용세포유전학적 연구에 유용한 도구가 되었다. 최근에는 사람에서는 착상전 수정란의 성판별 및 유전진단을 위해 실시되고 있는 형광직접접합법(fluorescent in situ hybridization, FISH)은 효소적 유전자 증폭(polymerase chain reaction; PCR)에 비해 높은 민감도와 정확성을 보이고 있으나 hybridization 및 washing 과정에 매우 긴 시간이 소요되고, 절차도 까다로워 현장에서의 적용이 용이치 않았다. 그러나 direct labelled probe의 이용, heat programmable instrument의 개발, denaturing chemical의 사용배제 등을 통해 소요시간 및 절차의 대폭적인 간소화를 이루어 현장의 적용 가능성을 한층 높이고 있다. 현재 사람의 세포유전학 및 종양학에서는 FISH의 다양한 기술이 많이 이용하고 있으나 소에서는 탐침자(probe)가 개발되어 있지 않아 그 이용이 미미하다. 본 연구는 FISH를 이용하기 위한 탐침자의 개발을 궁극적인 목표로 삼았으며, 이를 위해 접근이 용이한 방식을 개발하여 기존의 방식과는 다른 소 배아세포의 성을 판별 할 수 있는 접근방법을 소개 하고자한다.

• Journal of The Korean Association For Science Education
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• v.19 no.4
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• pp.674-683
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• 1999

The purpose of this study was to compare the ideas of pupils with that of the scientists about controlling and identifying of variables, in the two cases: open or guided inquiry. The subjects were the 7th grade boys and girls in a school, in Seoul, Korea. For the guided inquiry, the problems were given by the experiments of pupils' text. Pupils were asked to identify the variables in the experiments. For the open inquiry, pupils set their own inquiry problem. The pupils whose marks are within upper one-third of three classes were chosen. Pupils' ideas on variables were investigated in the design of experiment for their problems. In that, questionnaire developed by researchers was used. In the former, many of the pupils identify just only one variable despite of the fact there were two independent or dependent variables in the experiments. In the latter, the number of independent variables increased two or three. However, pupils do not control independent variables: they vary two independent variables simultaneously in the design of experiment. From these, we compared the pupils' ideas on variables with the scientists'

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.3
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• pp.1718-1723
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• 2014

We proposes the method to detect the Hangul and English character region from natural image using structural feature of Hangul and English Characters. First, we extract edge features from natural image, Next, if features are not corresponding to the heuristic rule of character features, extracted features filtered out and select candidates of character region. Next, candidates of Hangul character region are merged into one Hangul character using Hangul character merging algorithm. Finally, we detect the final character region by Hangul character class decision algorithm. English character region detected by edge features of English characters. Experimental result, proposed method could detect a character region effectively in images that contains a complex background and various environments. As a result of the performance evaluation, A proposed method showed advanced results about detection of Hangul and English characters region from natural image.

• Journal of Advanced Navigation Technology
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• v.9 no.2
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• pp.131-139
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• 2005

On this study, I constructed the reflective acoustic signal detecting system using 15MHz acoustic transducer. The most difficult problems discriminating the characteristics of the metal substance are the discriminating the corrosion state and seeking hidden defects by using none destructive testing. For solving these problems, at first, theoretic analysis has been proceeded on the acoustic V(z) characteristics which is very important on discriminating the material characteristics. For application the V(z) theory to discriminating corrosion state, the 100 and 500 won metal coins which are issued on the different years are used as the test samples. The experimental results showed the distinct differences among the coin's acoustic signals accorded to its issued years. I catched the common regulation by analysing the acquisited acoustic signals and convinced this technique to be very useful on corrosion discrimination of the metal substances by none destructive testing and also can be used to inspect on the aeronautical materials for safety navigation.

• Communications of Mathematical Education
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• v.19 no.2 s.22
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• pp.327-344
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• 2005

솔리테르(solitaire) 중 간단한 게임인 자리바꾸기 문제에 대해 학습자로 하여금 다양한 해결방법을 산출 하도록 한 후, 그 과정에서 학생들의 수학적 창의성의 발현 과정을 추적해 본다. 제시한 문제 해결 과제에 대한 학습자들의 반응과 해답을 분석함으로써 수학적 창의성에서의 인지적 구성요소인 확산성, 유창성, 논리성, 유연성, 독창성과 정의적 구성요소에 해당하는 적극성, 독자성, 집중성, 정밀성 등이 어떻게 나타나고 있는가를 살펴본다. 또한 그렇게 함으로써 각 구성요소의 의미와 특성을 규명하고자 하며, 나아가 이들 구성요소를 판별할 수 있는 방안에 대한 기초 자료를 제공하고자 한다.