다중 코디네이터를 이용한 RFID 리더 프로토콜 성능 분석

이세희,양훈기,양성현,강봉순,Lee, Se-Hee,Yang, Hoon-Gee,Yang, Sung-Hyun,Kang, Bong-Soon 한국정보통신학회 2011 한국정보통신학회논문지 Vol.15 No.10

본 논문은 수동형 RFID 시스템에서 발생하는 리더 충돌을 회피할 수 있는 코디네이터 기반 리더 프로토콜을 제시한다. 리더 스스로 임의의 슬롯을 선택하여 통신하는 기존방식과는 달리 제시한 프로토콜에서는 코디네이터가 네트워크에 참여하는 리더에게 중복되지 않게 슬롯을 할당하고 현재 슬롯 번호를 전송하여 해당 슬롯을 할당받은 하나의 리더만 통신하도록 한다. 제안된 방식은 다중 코디네이터 환경을 구축하여 광역 환경에서 더욱 효과적으로 사용될 수 있으며, 이로 인한 리더 충돌 문제는 주파수 배치(Frequency planning)를 적용하여 보완한다. 제안한 방식이 기존 방식에 비해 3~5배의 성능 향상을 보임을 시뮬레이션을 통해 검증한다. In this paper, we propose a coordinator-based reader protocol that can avoid reader collisions in a passive RFID system. In a proposed protocol, unlike conventional protocols that a reader itself selects its own slot randomly to communicate with tags such as DCS, Colorwave, a coordinator reader allocates an unused slot to a reader to participate in the network and sends a current slot number. A reader allocated a slot can communicate with tags. The proposed protocol can adaptively modified to apply for multiple coordinator readers environment in a wide area. This causes reader collision problem, but can be alleviated partly by applying the frequency planning. In this way, we verifies that a RFID system using the proposed protocol is three to five times better than existing systems through the simulation.

마분말을 첨가한 패티의 품질특성

이세희,조성현,Lee, Se-Hee,Cho, Sung-Hyun 한국식품조리과학회 2012 한국식품조리과학회지 Vol.28 No.6

This study was conducted in order to observe the physicochemical and sensory characteristics of hamburger patties added with yam powder (0, 25%, 50%, 75%, and 100% of bread crumbs). Increasing the amount of yam powder in the hamburger patties tended to decrease the cooking loss rate of the weight and the diameters. The moisture content of hamburger patties ranged from 51.90 to 53.94%. Increasing the amount of yam powder in the hamburger patty tended to increase the pH and the redness (a) in the hunter color value; however, it decreased the lightness (L). For the textural characteristics, the addition of yam powder increased the hardness of the hamburger patties. In the sensory evaluation, an addition of 50% and 100% yam powder had the best score in taste as well as in the overall preference. Therefore, this result suggests that adding yam powder of 100% can be applied to the hamburger patties for preference and nutritional aspects purposes.

교정사전과 신문기사 말뭉치를 이용한 한국어 철자 오류 교정 모델

이세희,김학수,Lee, Se-Hee,Kim, Hark-Soo 한국정보처리학회 2009 정보처리학회논문지B Vol.16 No.5

With the rapid evolution of the Internet and mobile environments, text including spelling errors such as newly-coined words and abbreviated words are widely used. These spelling errors make it difficult to develop NLP (natural language processing) applications because they decrease the readability of texts. To resolve this problem, we propose a spelling error correction model using a spelling error correction dictionary and a newspaper corpus. The proposed model has the advantage that the cost of data construction are not high because it uses a newspaper corpus, which we can easily obtain, as a training corpus. In addition, the proposed model has an advantage that additional external modules such as a morphological analyzer and a word-spacing error correction system are not required because it uses a simple string matching method based on a correction dictionary. In the experiments with a newspaper corpus and a short message corpus collected from real mobile phones, the proposed model has been shown good performances (a miss-correction rate of 7.3%, a F1-measure of 97.3%, and a false positive rate of 1.1%) in the various evaluation measures. 인터넷 및 모바일 환경의 빠른 발전과 함께 신조어나 줄임말과 같은 철자 오류들을 포함하는 텍스트들이 활발히 통용되고 있다. 이러한 철자 오류들은 텍스트의 가독성을 떨어뜨림으로써 자연어처리 응용들을 개발하는데 걸림돌이 된다. 이러한 문제를 해결하기 위해서 본 논문에서는 철자오류 교정사전과 신문기사 말뭉치를 이용한 철자 오류 교정 모델을 제안한다. 제안 모델은 구하기 쉬운 신문기사 말뭉치를 학습 말뭉치로 사용하기 때문에 데이터 구축비용이 크지 않다는 장점이 있다. 또한 교정사전 기반의 단순 매칭 방법을 사용하기 때문에 띄어쓰기 교정 시스템이나 형태소 분석기와 같은 별도의 외부 모듈이 필요 없다는 장점이 있다. 신문기사 말뭉치와 실제 휴대폰에서 수집한 문자 메시지 말뭉치를 이용한 실험 결과, 제안 모델은 다양한 평가 척도에서 비교적 높은 성능(오교정률 7.3%, F1-척도 97.3%, 위양성율 1.1%)을 보였다.

On-axis 스퍼터링과 FTS 공정으로 증착한 ZTO 박막트랜지스터의 특성

이세희,윤순길,Lee, Se-Hee,Yoon, Soon-Gil 한국재료학회 2016 한국재료학회지 Vol.26 No.12

We have investigated the properties of thin film transistors(TFT) fabricated using zinc tin oxide(ZTO) thin films deposited via on-axis sputtering and FTS methods. ZTO thin films deposited by FTS showed lower root-mean-square(RMS) roughness and more uniformity than those deposited via on-axis sputtering. We observed enhanced electrical properties of ZTO TFT deposited via FTS. The ZTO films were deposited at room temperature via on-axis sputtering and FTS. The as-deposited ZTO films were annealed at $400^{\circ}C$. The TFT using the ZTO films deposited via FTS process exhibited a high mobility of $12.91cm^2/V.s$, a low swing of 0.80 V/decade, $V_{th}$ of 5.78 V, and a high $I_{on/off}$ ratio of $2.52{\times}10^6$.

연구논문 : 미용학 관련 등재학회지의 최근 연구경향에 관한 비교분석

이세희 ( Se Hee Lee ),김정혜 ( Jung Hye Kim ) 한국미용학회 2015 한국미용학회지 Vol.21 No.1

As a comparative analysis on the latest research trend in cosmetology-related journals, this study aims to determine the future direction for cosmetology by looking into its past. For this, the papers written over the past three (3) years from 2011 to 2013 were examined. Then the data collected through a literature survey were analyzed by journal and classified by the number of papers and topic. According to analysis of the research trends of 887 papers, the focus differed by journal. In terms of the percentage of papers published in the Journal of Korean Beauty Society by topic, ‘hair’ was the highest with 41%, followed by ‘skin (30%)’, ‘others (14%)’, ‘makeup & body painting (11%)’ and ‘nail (4%)’. In the case of the papers in the Korean Society for Aesthetics and Cosmetology, ‘skin (53%)’ was the highest, followed by ‘hair (21%)’, ‘others (17%)’, ‘makeup & body painting (6%)’ and ‘nail (3%)’. Among the papers in the Korean Society of Beauty and Art, ‘hair’ was the highest with 43%, ‘skin (24%)’, ‘makeup & body painting (20%)’, ‘others (9%)’ and ‘nail (4%)’. In other words, in the Journal of Korean Beauty Society, the broadest distribution was found in ‘hair’-related studies with little difference in ‘skin’. In the Korean Society for Aesthetics and Cosmetology, on the contrary, ‘skin’-related studies were greater than ‘hair’ more than twice. In the Korean Society of Beauty and Art, lastly, ‘makeup & body painting’-related studies were more than two times greater than other journals. In addition, ‘hair’-related studies were greater (two times or greater) than ‘skin’-related ones. In sum, the studies relating to ‘hair’ or ‘skin’ accounted for more than half of all papers while the remaining topics revealed a similar distribution in all three journals.

헤어미용 현장실습을 위한 실습영역 개발 - 국가직무능력표준(NCS)기반 -

이세희 ( Se Hee Lee ),이소영 ( So Young Lee ) 한국미용학회 2017 한국미용학회지 Vol.23 No.4

In the meantime, beauty-related education has achieved significant growth in terms of quantity, such as the produce more than 30,000 cosmetologists each year. However there is a lack of qualitative growth. such as not being recognized that studied at school when doing work in the field. The purpose of this study is to development for hair beauty field training. To do this, the hair care job ability unit of National Competency Standards and composed 15 units. The method of the demand survey, seven competency units were selected, by the results of the survey of 392 respondent, professors, field instructor, students who completed field training. And then selected four competency units through the validation of the expert advisors and depths interviews. The results of the study are as follows. Hair beauty field training development of beauty college consists of 4 core concept. The four core concepts are “customer service”, “hair shampoo”, “hair color”, “hair permanent”. This study has conclusion that the development of the hair beauty field training are indices of the guidance of the hair beauty field training and can help the students to know the clear learning objectives in details. And, it is expected that it will serve as a basic data that will enable the students to know what business competence should be developed and trained in order to carry out practical work in the field.

농업용저수지 정비 및 수변개발에 관한 관리자 요구 조사 분석

이세희 ( Lee Se-hee ),정남수 ( Jung Nam-su ),김시운 ( Kim Si-woon ),김종옥 ( Kim Jong-ok ) 한국농공학회 2008 한국농공학회 학술대회초록집 Vol.2008 No.-

This study analyzed manager's demand for equipments and waterside development directions of Agricultural reservoir. We investigated agricultural reservoir managers working in Korea rural community & agriculture corporation. Analysis results show that responses of ‘very affirmative’ and ‘affirmative’ about tourist facilities, parks, and roads in agricultural reservoir are 60.2% wheres response of ‘lack of facilities for multi-functionality of agricultural reservoir’ is 67.1%. Main reasons about lack of facilities are funds, environmental pollution but interruption of agricultural water supply (6.7%) is relatively small problems. This means that they have a intention for water-side development with conditions of prevention of technology of environment pollution and enough funds. Multi-functionality of agricultural reservoir and ordered by water supply, flood control, environmental conservation, and tourist resources. Water-side development is occurred by external demands like willings of local government (48.1%) and tourism (25%).

자영 피부미용실과 병원 부설 피부미용실에 근무하는 피부미용사의 이직의도에 영향을 주는 요인 비교 분석

이세희 ( Se-hee Lee ),이현주 ( Hyun-ju Lee ),최은영 ( Eun-young Choi ) 한국미용학회 2021 한국미용학회지 Vol.27 No.1

The purpose of this study was to compare the effects emotional labor, job stress, welfare, perception of wage estimation on turnover intention between esthetician in independent esthetic shop and in hospital-annex esthetic shop to provide basic data to be used for a better manpower management. From February 1 to July 30, 2019, in Seoul and Gyeonggi area, the results from 114 estheticians in independent esthetic shop and 117 estheticians in hospital-annex esthetic shop are analyzed. The survey was conducted with SPSS 23.0 program, which was used by χ²-test regression. The main results of this study are listed below. First, as a result of comparing emotional labor, job stress, welfare, perception of wage estimation and turnover intention, emotional labor showed significantly higher estheticians working in hospital-annex esthetic shop, and perception of wage estimation was significantly higher in the estheticians working in independent esthetic shop. The significant predictor factors of turnover intention were workplace culture(β=.227, p<.01) and muscle or skeletal pain(β=.185, p<.05) in independent esthetic shop, while The most important predictor factors of turnover intention of estheticians in hospital-annex esthetic shop were satisfaction with the salary level(β=-.282, p<.01), workplace culture(β=.216, p<.05) and salary deduction(β=.209, p<.05). The limitations are as follows, The first reason, because the study area was limited in securing representative of the sample by limiting the area to Seoul and Gyeonggi-do. The second reason, it was questionnaire survey was conducted esthetician in independent esthetic shop and in hospital-annex esthetic shop, but there was a limitation because the questionnaire had to be conducted with the consent of the director. In future research is expected that comparative studies by industry will be conducted in more detailed areas. The finding of this study can be used as basic data for effective estheticians resource management and working environment in both esthetic shop.

모바일 기기에 최적화된 플래시 콘텐츠 디자인 방법

이세희(Lee Se-Hee),차재우(Cha Jae-Woo),양훈기(Yang Hoon-Gee) 한국통신학회 2009 한국통신학회 학술대회논문집 Vol.2009 No.6

퍼머넌트 웨이브 시술 시 중간세척 과정에 따른 컬 형성력과 손상도

이세희 ( Se Hee Lee ),강상모 ( Sang Mo Kang ) 한국미용학회 2012 한국미용학회지 Vol.18 No.5

After collecting the hair of a woman at her age of 32 which had not been chemically treated, bundles of hair was produced by weighing 1.2 g each for an experiment. To group them into healthy hair and damaged hair, the hair permed on the healthy hair was called perm hair and that permed on the damaged one decolored up to level 8, called dyed hair. The same perm solution 1 was applied and wound, and they were treated by middle rinsing differently before neutralization, and divided into control group and experiment group. In conclusion, as a result of experiments differentiating various conditions in the stage of middle rinsing which goes through the most radical change in a perm treatment, if importance is attached to curl formative power of hair only, a satisfactory result would be obtained by penetrating treatment such as keratin and ceramide sufficiently after the middle rinsing and neutralizing it. Considering the health of hair, rather not doing middle rinsing or having a time of removing moisture and leaving the hair so that it can make a stable combination in case of rinsing for curl formative power is a method by which the customer and practitioner can get a satisfactory result.