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Lee's 메뉴엔지니어링 분석법(LME)의 적용 - 이탈리아 피자류를 중심으로 -
이성호,Lee, Sung-Ho 한국식품영양학회 2020 韓國食品營養學會誌 Vol.33 No.1
The purpose of this study is an application of Lee's Menu Engineering (LME) method for menu analysis on the eight kinds of pizza selected from 17 kinds of pizza served by an Italian restaurant near by the Keimyung College University campus. The eliminated nine items were in the third quadrant or below the trend line. The LME method is more efficient than generally used methods such as the Miller, Kasavana & Smith, Uman, Pavesic and Merricks & Jones method. The LME method comprises reference lines and four quadrants created by x, y axes and its average values. The x and y axes comprise the sales ratio (MM%, percentage of the Menu Mix) and the weighted contribution margin (WCM%, percentage of the Weighted Contribution Margin) respectively. The obtained results are such that total sales increased by 1.59% from 58,747,200 won to 59,684,000 won, despite the decrease in sales volume. Total contribution margin also increased from 35,248,320 won to 35,810,400 won. The trend line also shows from y=0.9147x (R<sup>2</sup>=0.703) to y=0.9944x (R<sup>2</sup>=0.9893). These results indicate that the LME method is superior in practical applications.
견의 총백혈구수 및 호산구수의 동시적계산을 위한 개량희석액에 관한 연구
이성호,이방환,이원창,Lee Sung Ho,Lee Bang Whan,Lee Won Chang 대한수의사회 1978 대한수의사회지 Vol.14 No.1
The study was conducted in an attempt to estimate the efficiency of various diluting fluids for eosinophil count to oxalated blood and EDTA blood of human and canine, and to prepare the improved diluting fluid adaptable to concurrent direct counts of eosi
이성호,이요섭,김홍덕,이경수,황경모,Lee, Sung Ho,Lee, Yo Seob,Kim, Hong Deok,Lee, Kyoung Soo,Hwang, Kyeong Mo 한국압력기기공학회 2015 한국압력기기공학회 논문집 Vol.11 No.2
Local wall thinning and integrity degradation caused by several mechanisms, such as flow accelerated corrosion, cavitation, flashing and/or liquid droplet impingement, is a main concern in secondary steam cycle piping system of nuclear power plants in terms of safety and operability. Thinned pipe management program (TPMP) has being developed and optimized to reduce the possibility of unplanned shutdown and/or power reduction due to pipe failure caused by wall thinning. In this paper, newest technologies, standards and regulations related to the integrity assessment, repair and replacement of thinned pipe component are reviewed. And technical improvement items in TPMP to secure the reliability and effectiveness are also presented.
나트륨 섭취량 추정을 위한 소변 중 Cl<sup>-</sup>의 간이적 측정방법의 유용성 검증
이성호,이채준,주성미,이현주,라왕연,김순옥,Lee, Sung-Ho,Lee, Chae-Joon,Ju, Sung-Mi,Lee, Hyun-Joo,Ra, Wang-Yeon,Kim, Soon-Ok 한국식품영양학회 2016 韓國食品營養學會誌 Vol.29 No.1
The purpose of this study was to measure concentrations of $K^+$, $Na^+$, $Cl^-$ by ionometer with check salt strip, simple salimeter and Ion-selective electrode (ISE) and compare the results of each mensuration; furthermore, the possibility of inferring the $Na^+$ concentration from $Cl^-$ concentration of urine and the impact of $K^+$ on the concentration of each ion was examined. The results showed that ISE determined $Na^+$ and $Cl^-$ concentrations in the urine are highly interrelated (R=0.9039); in addition, concentrations of $Cl^-$, measured with strip and ISE from urine are highly interrelated (R=0.9338). The concentration of $Na^+$ in urine, inferred by measuring $Cl^-$ concentration with strip, has a high relationship (R=0.8580) with the concentration of $Na^+$ in urine, measured by ISE. The results of our study will increase awareness of $Na^+$ intake and the utility of check salt strip, as well as the possibility of inferred $Na^+$ concentration from measures of $Cl^-$ concentration as a screening test for reducing sodium intake.
무선광시스템에서 광섬유 커플러를 이용한 잡음광의 영향 감소
이성호,Lee Seong-Ho 한국전자파학회 2005 한국전자파학회논문지 Vol.16 No.5
In this paper, optical noise is reduced by a differential detector with an optical fiber coupler in an optical wireless system. An $1\times2$ optical fiber coupler divides the received optical signal by 2 equally, and connects them to the two photodiodes in a differential detector. The output voltage variation due to the abrupt change of optical noise distribution in space disappears because the two photodiodes effectively detect the optical signal at the same point. The signal to noise ratio in a differential detector with a fiber coupler was 8 dB higher than in a single photodiode with an optical filter. 본 논문에서는 광섬유 커플러를 이용하여 차동 검출기를 구성하고 무선광시스템에서 잡음광 소거에 활용하였다. $1\times2$광섬유 커플러를 이용하여 수신광을 2개로 분리해서 수신하면 동일한 지점의 잡음광을 2개의 포토다이오드에서 동시에 검출하는 효과가 발생한다. 따라서 잡음광의 공간분포의 변화가 심하게 발생하는 환경에서도 2개의 포토다이오드의 위치 차이로 인한 출력 전압의 변동이 나타나지 않아 잡음 소거 효과가 높아진다. 광필터를 사용한 단일의 광검출기에 비하여 광섬유 커플러를 사용한 차동검출기에서 신호대 잡음비를 약 8 dB 개선하였다.
스키리조트의 명성이 다차원적 신뢰, 고객만족 및 구전확산에 미치는 영향
이성호,Lee, Sung-Ho 한국디지털정책학회 2014 디지털융복합연구 Vol.12 No.10
The purpose of this study is to ascertain the effect of the reputation of ski resorts on multidimensional trust, customer satisfaction and spread by word-of-mouth. To attain this goal, 400 adult male and female subjects using 3 Ski Resorts located in Gangwon-do in Korea in 2013 were selected. For this, convenient sampling was used. The data was processed with the 382 final available samples excluding the 18 inappropriate questionnaires through frequency-, exploratory factor-, reliability-, correlation-, and simple/multiple regression-analyses by using the PASW 18.0. The result is as follows. First, the reputation of the ski resorts was found to have a positive effect regarding the trust of the resorts and their employees. Second, trust in ski resorts and their employees was found to have a positive effect on customer satisfaction. Third, trust in ski resorts and their employees was found to have a positive effect on the spread of word-of-mouth about the resorts. Fourth, customer satisfaction was found to have a positive effect on the diffusion by word-of-mouth. 이 연구의 목적은 스키리조트의 명성이 다차원적 신뢰, 고객만족 및 구전확산에 미치는 영향을 규명하는 것이다. 이러한 목적을 달성하기 위해 2013년 강원도 지역에 소재한 3개(P, W, Y)의 스키리조트를 이용하고 있는 성인 남 여 400명을 조사대상으로 선정하였다. 이 때 사용한 표집방법은 편의표본추출법이다. 수집된 자료 중 부적절한 18부의 설문을 제외한 382개의 최종 유효표본을 가지고 빈도분석과 탐색적요인분석, 신뢰도분석, 상관관계분석 및 단순 및 다중회귀분석을 하기 위하여 PASW 18.0을 활용하여 자료처리를 하였다. 그 결과를 보면 다음과 같다. 첫째, 스키리조트의 명성은 리조트에 대한 신뢰와 리조트 종사원에 대한 신뢰에 긍정적인 영향을 미치는 것으로 나타났다. 둘째, 리조트에 대한 신뢰와 리조트 종사원에 대한 신뢰는 고객만족에 긍정적인 영향을 미치는 것으로 나타났다. 셋째, 리조트에 대한 신뢰와 리조트 종사원에 대한 신뢰는 구전확산에 긍정적인 영향을 미치는 것으로 나타났다. 넷째, 고객만족은 구전확산에 긍정적인 영향을 미치는 것으로 나타났다.