• 한국전기전자재료학회:학술대회논문집
• /
• 한국전기전자재료학회 2004년도 추계학술대회 논문집 Vol.17
• /
• pp.327-330
• /
• 2004

Because of its effectiveness for the PD(partial discharge) pattern recognition, PSA(Pulse Sequence Analysis) has been considered as a new analytic method instead of conventional PRPDA(Phase Resolved Partial Discharge Analysis). However, PSA has a big problem that can misanalyze patterns in case of data missing resulting from poor sensitivity because it analyses the correlation between sequential pulses, which leads to hesitate to apply it to on-site. Therefore, in this paper, the problems of PSA such as data missing and noise adding cases were investigated. For the purpose, PD data obtained from various defects including noise adding data were used and analysed, The result showed that both cases can cause fatal errors in recognizing PD patterns. In case of the data missing, the error depends on the kinds of defect and the degree of degradation. Also, it could be noticed that the error due to adding noises was larger than that due to some data missing.

• 한국전기전자재료학회논문지
• /
• 제27권1호
• /
• pp.61-69
• /
• 2014

In this paper, we have researched semiconductor optical filters to solve the problem of the high failure rate that are recognize bad of financial account, jam of financial account and the ATM service interruption due to failure of accurate location information among the operation of the ATM (automatic teller machine) systems. A semiconductor optical filters that have high resolution and less diffuse, high transmittance are able to detect the information of financial account surface accurately. Therefore, it is a stable filter that is able to minimize the incidence of disability. In this paper, we drew the determinants by element for implement an excellent semiconductor optical filters. Based on this, we had to be able to implement the semiconductor optical filter that is able to be mounted on the actual ATM system through future studies.

• 한국전기전자재료학회:학술대회논문집
• /
• 한국전기전자재료학회 2002년도 춘계학술대회 논문집 유기절연재료 전자세라믹 방전플라즈마 일렉트렛트 및 응용기술
• /
• pp.218-222
• /
• 2002

In the recognition of the gases using the quartz crystal microbalance (QCM) coated with the PEG film materials, it is important to obtain the recognition ability of gases, and the stability of PEG film coated above the QCM. Especially, the thickness of PEG film coated above the QCM is decreased according with the using circumstance and time of QCM gas sensor. Therefore, the sensing characteristics of PEG film is changed with these. In this paper, we coated the PEG materials varing with the blended amount of PVC(Poly Vinyl Chloride) and chloroform above QCM to obtain the sensitive and the stability of PEG film. We measured the degradation characteristics of QCM gas sensor in the ethyle acetate 50[%] concentration to show the properties of stability.

• 패션비즈니스
• /
• 제6권2호
• /
• pp.77-92
• /
• 2002

This study analyzed the consumer behavior on the environmentally Benefical clothing through the substantial verification, which was based on theoretical reviews. It also aimed to provided marketing aspects on the design, raw material, product quality, price, and brand recognition of environmentally Benefical clothing. For the substantial, verification following questions were developed. 1) Consumers' interests in purchasing environmentally Benefical clothing. 2) The consumer behavior on the environmental factors of the design, raw material, product quality, price, and brand recognition of environmentally Benefical clothing. 3) The changes in the consumer behavior on negative aspects of environmentally Benefical clothing. 4) The reasons of unfavorable behavior of environmentally unconscious consumers on environmentally Benefical clothing. Substantial data was collected through a survey, conducted on two hundreds and twenty-nine male and female students in graduate and undergraduate schools, resided in Seoul. The collected data was analyzed with Statistical Package for Social Science for Windows, version 8.0, and X2 and T-test were performed. Those results and issues, developed in the analysis of consumer behavior on the environmentally Benefical clothing, could be utilized in the environmental management and the marketing activity for the clothing companies.

• 한국전기전자재료학회논문지
• /
• 제18권5호
• /
• pp.484-489
• /
• 2005

Because of its effectiveness for the PD(Partial Discharge) pattern recognition, PSA(Pulse Sequence Analysis) has been considered as a new analytic method instead of conventional PRPDA(Phase Resolved Partial Discharge Analysis). However, it is generally thought that PSA has some possibility to misjudge patterns in case of data-missing resulting from poor sensitivity because it analyses the correlation between sequential pulses, which leads to hesitate to apply it to on-site. Therefore, in this paper, the problems of PSA such as data-missing and noise-adding cases were investigated. for the purpose, PD data obtained from various defects including noise-adding data were used and analyzed. As a result, it was shown that both cases could cause fatal errors in recognizing PD patterns. In case of the data missing, the error was dependant on the kinds of defect and the degree of degradation Also, it could be noticed that the error due to adding noises was larger than that due to some data missing.

• 복식
• /
• 제66권6호
• /
• pp.149-157
• /
• 2016

For the Korean fashion industry to become more competitive, not only does it need to develop a higher value-added fashion products, but also needs to raise creative and professional talented people. The purpose of this study is to propose ways to develop new curriculum for education in the fashion design field by analyzing the degree of recognition about the importance of curriculum in fashion design. Based on the curriculums of fashion design field of universities, a survey was conducted using a questionnaire to measure the degree of importance and the degree of application for the curriculum of fashion design field. The study gathered data from 235 students from 6 universities in Seoul. Major conclusions of the study are as follows: First, preferred career courses after graduation were fashion designer for woman's or menswear, patterner. Second, clothing construction field is considered to be the most important subject in the present, while material planning field is considered to become the most important in the future. The fashion design field was evaluated as an important field in the present and the future. Third, fashion design, accessory design, fashion design CAD, fashion illustration were evaluated as important subjects and highly available for career. Fourth, fashion design CAD, fashion illustration, and textile design were evaluated as the courses that needed more emphasis. Flat sketch, spec sheet, on-the-job training were needed to be included. Fashion designer, and patterner were preferred for career courses. Clothing construction, material planning, and fashion design were evaluated as important fields. Accessory design, fashion design CAD, and fashion illustration were evaluated as important and highly available subjects for career. For the new curriculum in the fashion design field, more courses on fashion design CAD, fashion illustration, textile design and on-the-job training are needed.

• 자원환경지질
• /
• 제51권5호
• /
• pp.455-461
• /
• 2018

본 연구는 지질자원기술의 미래상에 대하여 전문가 집단과 일반인 집단의 인식을 비교하는 것을 목적으로 하였다. 이를 위하여 설문조사를 실시 하였다. 설문조사는 일반인 598명과 전문가 215명 등 두 그룹으로 나눠 조사 전문 회사에 의해 2017년 7~8월 진행되었다. 연구결과는 다음과 같다. 전문가들은 지질자원기술의 7가지 미래상에 대하여 에너지, 기후환경, 지질환경, 광물자원 재료, 삶의 터전, 우주지구 탐구, 4차 산업혁명 순으로 중요도의 우선순위를 두고 있는 것으로 조사되었다. 일반인들은 7가지 지질자원기술 미래상에 대하여 기후환경, 지질환경, 에너지, 광물자원 재료, 삶의 터전, 우주지구 탐구, 4차 산업혁명 순으로 중요도의 우선순위를 인식하고 있는 것으로 나타났다.

• 융합정보논문지
• /
• 제9권6호
• /
• pp.233-241
• /
• 2019

본 연구는 수도권에 거주하는 20~30대 여성을 대상으로 마스크팩 인식 및 구매 행동에 대하여 설문지를 이용하여 조사하였다. 본 연구 결과, 연구 대상자들은 피부미용에 대한 관심이 높지만 마스크팩 타입에 따른 특징과 차별성 인식은 미흡한 것으로 조사되었다. 마스크팩을 사용한 후, 조사 대상자들의 51.1%가 효능 효과에 만족한 것으로 조사되었으나, 마스크팩 사용 시 대표적인 불편한 점으로는 시트형 마스크팩은 사용성, 크기, 밀착성 및 피부 자극으로 불만족스러웠으며, 하이드로 겔타입의 소재와 슬리밍 타입은 내용물, 흡수성에 대해 불만족스러운 것으로 확인되었다. 또한, 셀룰로오스 팩과 하이드로겔 타입의 팩은 동일하게 불쾌감을 가지는 것으로 확인되었다. 본 연구 결과를 통하여 마스크팩 시장의 기초 마케팅 자료로서 활용이 가능할 것으로 사료되어 진다.

• 한국음향학회지
• /
• 제42권3호
• /
• pp.214-220
• /
• 2023

본 논문에서는 합성곱 신경망과 트랜스포머의 장점을 결합한 Conformer 모델을 이용하여 물체 표면의 질감특성을 나타내는 햅틱 가속도 신호로부터 질감 인식 성능을 향상시키는 방식을 제안한다. 제안한 방식에서는 사람이 스타일러스와 같은 도구를 이용하여 물체 표면과 접촉하는 동안 충격음과 진동에 의해 발생한 3축 가속도 신호를 1차원 가속도 데이터로 결합하고, 오디오 신호와 유사성을 갖는 햅틱 가속도 신호로부터 로그 멜-스펙트로그램을 추출한다. 그리고 추출된 로그 멜-스펙트로그램에 Conformer 모델을 적용하여 다양한 물체의 질감을 인식하는 데 있어 주요한 지역적 및 전역적인 주파수 특징을 학습한다. 제안된 모델의 성능 평가를 위해 60개의 재질로 구성된 Lehrstuhl für Medientechnik(LMT) 햅틱 질감 데이터세트를 실험한 결과 제안된 방식이 기존 방식들보다 물체 표면 재료의 질감을 효과적으로 잘 인식할 수 있음을 보였다.

• 한국정밀공학회지
• /
• 제18권5호
• /
• pp.42-49
• /
• 2001

In This paper, we present a collaborative method for material delivery using a distributed vehicle agents system. Generally used AGV(Autonomous Guided Vehicle) systems in FA(Factory Automation) require extraordinary facilities like guidepaths and landmarks and have numerous limitations for application in different environments. Moreover in the case of controlling multi vehicles, the necessity for developing corporation abilities like loading and unloading materials between vehicles including different types is increasing nowadays for automation of material flow. Thus to compensate and improve the functions of AGV, it is important to endow vehicles with the intelligence to recognize environments and goods and to determine the goal point to approach. In this study we propose an interaction method between hetero-type vehicles and adaptive fuzzy logic controllers for sensor-based path planning methods and material identifying methods which recognizes color. For the purpose of carrying materials to the goal, simple color sensor is used instead of intricate vision system to search for material and recognize its color in order to determine the goal point to transfer it to. The technique for the proposed method will be demonstrated by experiment.