항공사 e-Ticket service요인과 고객만족간의 관계

이호길(Ho Gil Lee),권재일(Jae Il Kwon) 한국호텔외식관광경영학회 2010 호텔경영학연구 Vol.19 No.3

Since the late 1970`s, airline CRS(computer reservation system) is a generalization of the application and the operating airline reservations and ticketing services, has developed by leaps and bounds. Especially since 1990, the advent of commercial Internet services, the airline`s business has brought revolutionary changes. In this study, e-mail(e-mail) and the Internet in our daily life patterns as a reform leader, airline e-Ticket service for airlines and the aviation market to your customers, and whether accompanied by any change should take a look at. The results of this study are as follows. First, this study of the e-Ticket service investigated what factors. Results, convenience, versatility, accuracy and promptness of the factors were derived. Second, e-Ticket service ease of a significant influence on customer satisfaction, respectively. Third, e-Ticket service for a variety of customer satisfaction has been identified as a significant influence. Fourth, e-Ticket service for customer satisfaction, the accuracy showed a significant influence. Finally, e-Ticket service at the speed of customer satisfaction showed a significant positive effect.

엔트로피 가중치와 웨버 법칙을 이용한 세일리언시 검출

이호상(Ho Sang Lee),문상환(Sang Whan Moon),엄일규(Il Kyu Eom) 대한전자공학회 2017 전자공학회논문지 Vol.54 No.1

본 논문에서는 웨이블릿 변환 영역에서 엔트로피 가중치와 웨버 대비 도를 이용한 세일리언시 검출 방법을 제안한다. 본 논문의 방법은 기존의 일반적인 방법과 마찬가지로 국부적인 세일리언시를 결정하는 상향식 검출과 전역적인 세일리언시를 구성하는 하향식 검출을 결합하는 구조를 가진다. 먼저, CIE Lab 컬러 영상에 대하여 웨이블릿 변환을 수행하고, 저주파 부밴드에 대하여 웨버 대비도 계산하고 이를 저주파 계수에 부가하여 전역 세일리언시를 구한다. 다음으로, 고주파 부밴드의 엔트로피를 이용한 가중치를 가우시안 필터에 적용하여 국부 세일리언시를 구한다. 마지막으로 국부 세일리언시와 전역 세일리언시의 비선형 결합을 통하여 최종 세일리언시를 검출한다. 제안 방법의 성능 평가를 위해 2개의 영상 데이터베이스에 대하여 모의실험을 수행하였다. 기존의 방법과 비교하여 본 논문의 방법은 우수한 세일리언시 검출 결과를 나타내었다. In this paper, we present a saliency detection method using entropy weight and Weber contrast in the wavelet transform domain. Our method is based on the commonly exploited conventional algorithms that are composed of the local bottom-up approach and global top-down approach. First, we perform the multi-level wavelet transform for the CIE Lab color images, and obtain global saliency by adding the local Weber contrasts to the corresponding low-frequency wavelet coefficients. Next, the local saliency is obtained by applying Gaussian filter that is weighted by entropy of wavelet high-frequency subband. The final saliency map is detected by non-lineally combining the local and global saliencies. To evaluate the proposed saliency detection method, we perform computer simulations for two image databases. Simulations results show the proposed method represents superior performance to the conventional algorithms.

In Vitro에 의한 유황피복요소(硫黃被覆尿素)와 Diuredio Isobutane의 이용효과(利用效果) 판정(判定)

이호일,이재구,최인혁,Lee, Ho-Il,Rhee, Jae-Ku,Choi, In-Hyuk 대한수의학회 1982 大韓獸醫學會誌 Vol.22 No.2

In order to explore more efficient protein substitutes by improving the utilization of non-protein nitrogen compounds in ruminants, the experiment was undertaken. The effects of sulfur coated urea (SCU) and diuredio isobutane (DUIB) in the ruminal fluid on the concentration of $NH_3-N$, the total count of the ruminal ciliates and pH value were estimated in vitro. The results obtained from the experiment were as follows: 1. The pH of the media of the group added diuredio isobutane and sulfur costed urea tends to decrease slightly at 9 hours after the incubation, but no pH changes were observed in the media added urea alone. 2. The number of the ciliates in the ruminal fluid was slightly increased 9 hours after the incubation in all groups. 3. The concentrations of $NH_3-N$ in the ruminal fluid were gradually increased according to the incubation in vitro showing 418, 431 and $627{\mu}g/ml$ in the group added diuredio isobutane and 428, 569 and $792{\mu}g/ml$ in the group added sulfur coated urea at 0, 0.5 and 9 hours after the incubation, respectively.

나노기술 개발동향 : 나노 광결정의 연구개발 동향 및 정보분석

이호신 ( Lee Ho Sin ),김경호 ( Kim Gyeong Ho ),이일형 ( Lee Il Hyeong ),기철식 ( Gi Cheol Sig ),임한조 ( Im Han Jo ) 한국공업화학회 2003 공업화학전망 Vol.6 No.4

하천의 어제, 오늘 그리고 내일 2 - 복하천(福河川)의 현재

이호일,Lee, Ho-Il 한국하천협회 2011 하천과 문화 Vol.7 No.4

폐슬롯 구조를 갖는 영구자석 전동기의 공극 자계 특성 해석

이호현(Ho-Hyun Lee),김윤환(Youn-Hwan Kim),문재원(Jae-Won Moon),최병연(Byung-Yeon Choi),우경일(Kyung-Il Woo) 대한전기학회 2021 대한전기학회 학술대회 논문집 Vol.2021 No.5

실험적 응력해석의 IITC 방식에 의한 콘크리트 구조물 잔류응력 평가

이호범,한상희,장일영,Lee, Ho Beom,Han, Sang Hee,Jang, Il Young 대한토목학회 2014 대한토목학회논문집 Vol.34 No.2

기존 콘크리트 구조물 내력은 변위 및 스트레인 게이지를 통해 기지의 가력에 따른 변화량을 계측하고, 그 결과를 수치해석 결과와 비교하여 평가한다. 이는 결과적으로 현존 콘크리트의 잔류응력을 계측 평가하므로써 완성될 수 있다. 본 논문은 실험적 응력해석법의 일환으로 콘크리트 구조물에 대한 잔류응력을 비파괴적인 방식으로 평가하는 IITC (Instrumented Indentation Technique for Concrete) 시스템 개발과 관련된 것으로 콘크리트 구조물 표면에서 압입하중과 압입깊이와의 상관관계를 이용한 실험적 평가방법을 논하였다. 본 연구에서는 구성되는 H/W 및 분석용 S/W는 새롭게 개발하였으며, 다각도의 실험결과를 이용하여 콘크리트 구조물에서의 실험적 잔류응력 추정식을 창출하였고, 자동으로 잔류응력을 평가케 함으로써 콘크리트 구조물의 축성단계에서부터 유지관리 단계에까지 자유롭게 내력을 산정할 수 있도록 하였다. The carrying capacity of existing concrete structures is evaluated by the measured data from displacement and strain gauges for given loads and the results of numerical analysis that are compared with the measured ones. Consequently, this process could be accomplished in doing the direct measurement of residual stress on existing concrete. This study is concerned with the development of IITC (Instrumented Indentation Technique for Concrete) system which is based on the experimental stress analysis technique using non-destructive test method to evaluate the residual stress of concrete structures depending on the types of applied loadings in analysing indentation load - indentation depth curve derived experimentally on concrete surface. As a result, in this paper, almost all of systematized H/W and S/W were newly developed to estimate the residual stresses of concrete structures. Thus, the creation of new experimental equations for deriving residual stresses and automatical calculations of residual stresses using the empirical formula can lead to evaluate the structural resistances conveniently in the structures from construction phase to maintenance stage.

철도 위험도 통합 평가 방법 및 도구 개발

이호중(Lee Ho Joong),한상훈(Han Sang Hoon),안광일(Ahn Kwang Il),왕종배(Wang Jong Bae) 한국철도학회 2006 한국철도학회 학술발표대회논문집 Vol.- No.-

Railway risk is evaluated by a method of linking event trees and fault trees as the general PSA(Probabilistic Safety Assessment) model for the risk assessment of complex systems. Accident scenarios causing undesirable events are modeled by event trees comprised of several accident sequences. Each branch located in the accident progression of the event tree is modeled by an fault tree or can be represented by some value too simply. We usually evaluate the frequency of the whole sequence by adding them after calculating the frequency of each sequence at a time. However, since there are quite a number of event trees and fault trees in the railway risk assessment model, the number of sequence to evaluate increases and preparation for the risk assessment costs much time all the more. Also, it may induce errors when analysts perform the work of quantification. Therefore, the systematic maintenance and control of event trees and fault trees will be essential for the railway risk assessment. In this paper we introduce an integrated assessment method using one-top model and develop a risk assessment tool for the maintenance and control of the railway risk model.

주거지원 프로그램이 주거비부담에 미치는 영향에 관한 연구 : 저소득 청년과 노인 임차가구를 중심으로

이호일(Ho-il Lee),김지희(Ji-Hee Kim),노승한(Seung-Han Noh) 건국대학교 부동산도시연구원 2021 부동산 도시연구 Vol.14 No.1

본 연구의 목적은 저소득 청년가구와 저소득 노인가구의 주거비부담에 대한 영향을 주거지원 프로그램별로 구분하여 각 집단의 인문학적, 사회 경제적 특성을 분석하는 것이다. 본 연구에서는 주거지원 프로그램에 의해 지원받는 저소득 청년가구와 저소득 노인가구의 주거 복지 향상을 위한 정책적 시사점을 도출하기 위해 2019 주거실태조사 마이크로데이터를 활용하였다. 연구결과는 다음과 같다. 첫째, 수요 관련 주거지원 프로그램 이용 변수는 저소득 청년가구에게 양(+)의 영향을 미치고, 저소득 노인가구에게 음(-)의 영향을 미치는 것으로 나타났다. 이는 저소득 청년가구가 지원금을 대부분 주거환경의 질의 향상을 위해 임대료 지출에 사용한 반면, 저소득 노인가구는 기존의 주거환경을 유지하는 가운데 수요 관련 주거프로그램 지원금을 통해 주거비부담을 줄이기 때문으로 판단된다. 둘째, 공급 관련 주거지원 프로그램은 저소득 청년 및 노인가구 모두에 음(-)의 영향을 미치는 것으로 나타났으며, 정부에서 지원하는 공급 주거지원 프로그램이 저소득 청년 및 노인가구의 주거비부담을 감소시키는데 직접적인 영향을 미치는 것으로 나타났다. This study examines the social and economic characteristics of each young and elderly household group. We employ the 2019 Residential Survey to derive policy implications for improving housing welfare for low-income young and low-income elderly households supported by housing support programs. The results of the study are as follows. First, the use of demand-related housing support programs has a positive effect on low-income young households and a negative effect on low-income elderly households. We argue that it implies low-income young households mostly use the subsidies to spend rent to improve the quality of their residential environment while low-income elderly households spend to reduce the burden of housing cost while maintaining the existing residential environment. Second, supply-related housing support programs have negative effects on both low-income young and elderly households, and housing support programs directly affect the burden of housing costs.

Sulfamonomethoxine 이 개의 갑상선(甲狀腺)에 미치는 영향(影響)

이호일,임병무,이성희,Lee, Ho Il,Rim, Byung Moo,Lee, Sung Hee 대한수의학회 1973 大韓獸醫學會誌 Vol.13 No.2

In order to investigate the effect of sulfamonomethoxine on the thyroid gland, healthy mongrel dogs were selected at random. The body weights of these animals ranged between 1850 and 2050g at the beginning of the experiment. The 12 dogs used in this work were allotted to groups of two. Dogs in one group served as controls and the others were administered sulfamonomethoxine of 50 mg/kg/day for 15 weeks. The results obtained in this work were summerized as follows: 1. Mean body weights of experimental dogs revelled a slow increasing tendency but weights of thyroid glands were increased highly. 2. Thyroid follicles were atrophied significantly in accordance with experimental term and their colloidal substance was not found on stained sections. 3. It indicated the appearance of typical hyperplastic goiter. New follicular epithelial cells which were changed into hypertrophic cuboidal and columnar in type showed degeneration and necrosis and those cells multiplied difusely and made new small follicles.