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 (R²=0.703) to y=0.9944x (R²=0.9893). These results indicate that the LME method is superior in practical applications.

나트륨 섭취량 추정을 위한 소변 중 Cl^-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.

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

감육배관의 건전성평가 및 정비 관련 기술기준 고찰

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.

Capability of Thermal Field-Flow Fractionation for Analysis of Processed Natural Rubber

이성호,은철훈,Lee, Seong Ho,Eun, Cheol Hun,Anthony R. Plepys Korean Chemical Society 2000 Bulletin of the Korean Chemical Society Vol.21 No.1

Applicability of Thermal field flow fractionation (ThFFF) was investigated for the analysis of masticated natural rubber (NR) adhesives produced bya hot melt mastication process. An optimum ThFFF condition for NR analysis was found by using tetrahydrofuran (THF) as a solvent/carrier and a field-programming. Low flowrate (0.3 mL/min) was used to avoid stopping the flow for the sample relaxation. Measured molecular weight distribution was used to monitor degradation of rubber during the mastication process. Rubber samples collected at three different stages of the mastication process and were analyzed by ThFFF. It was found that in an anaerobic process rubber degradation occurs at the resin-mixing (compounding) zone as well as in the initial break-down zone, while in an aerobic process most of degradation occurs at the initial breakdown zone. It was also found that E-beam radiation on NR causes a slight increase in the NR molecular weight due to the formation of a branched structure.

흰쥐의 시상하부외 지역에서의 Growth Hormone Releasing Hormone (GHRH) 유전자발현;뇌하수체내 국부인자로서 Lactotroph분화에 관여할 가능성에 대하여

이성호,Lee, Sung-Ho 대한생식의학회 1996 Clinical and Experimental Reproductive Medicine Vol.23 No.3

Biosynthesis and secretion of anterior pituitary hormones are under the control of specific hypothalamic stimulatory and inhibitory factors. Among them, Growth Hormone Releasing Hormone (GHRH) is the major stimulator of pituitary somatotrophs activating GH gene expression and secretion. Human GHRH is a polypeptide of 44 amino acids initially isolated from pancreatic tumors, and the gene for the hypothalamic form of GHRH is organized into 5 exons spanning over 10 kilobases (kb) on genomic DNA and encodes a messenger RNA of 700-750 nucleotides. Several neuropeptides classically associated with the hypothalamus have been found in the extrahypothalamic regions, suggesting the existence of novel sources, targets and functions. GHRH-like immunoreactivity has been found in several peripheral sites, including placenta, testis, and ovary, indicating that GHRH may also have regulatory roles in peripheral reproductive organs. Furthermore, higher molecular weight forms of the GHRH transcripts were identified from these organs (1.75 kb in testis; 1.75 and >3 kb in ovary). These tissue-specific expression of GHRH gene suggest the existence of unique regulatory mechanism of GHRH expression and function in these organs. In fact, placenta-specific and testis-specific promoters for GHRH transcripts which are located in about 10 kb upstream region of hypothalamic promoter were reported. The use of unique promoters in extrahypothalamic sites could be refered in a different control of GHRH gene and different functions of the translated products in these tissues. Somatotrophs and lactotrophs have been thought to be derived from a common bipotential progenitor, the somatolactotrophs, which give origins to either phenotypes. Although the precise mechanism responsible for the lactotroph differentiation in the anterior pituitary gland has not been yet clalified, there are several candidators for the generation of lactotrophs. In human, the presence of GHRH peptides with different size from authentic hypothalamic form in the normal anterior pituitary and several types of adenoma were demonstrated. Recently our group found the existence of immunoreactive GHRH and its transcript from the normal rat anterior pituitary (gonadotroph> somatotroph> lactotroph), and the GHRH treatment evoked the increased proliferation rate of anterior pituitary cells in vitro. The transgenic mouse models clearly shown that GHRH or NGF overexpression by anterior pituitary cells induced development of pituitary hyperplasia and adenomas particularly GH-oma and prolactinoma. Taken together, we hypothesize that the pituitary GHRH could serve not only as a modulator of hormone secretion but as a paracrine or autocrine regulator of anterior pituitary cell proliferation and differentiation. Interestingly enough, the expression of Pit-1 homeobox gene (the POU class transcription factor) was confined to somatotrophs, lactotrophs and somatolactotrophs in which GHRH receptors are expressed commonly. Concerning the mechanism of somatolactotroph and lactotroph differentiation in the anterior pituitary, we have focused following two possibilities; (1) changes in the relative levels or interactions of both hypothalamic and intrapituitary factors such as dopamine, VIP, somatostatin, NGF and GHRH; (2) alterations of GHRH-GHRH receptor signaling and Pit-1 activity may be the cause of lactotroph differentiation or pituitary hyperplasia and adenoma formation. Extensive further studies will be necessary to solve these complicated questions.

도시화에 따른 하천의 변화 빛 복원방안 (2)

이성호,Lee, Seong-Ho 한국환경기술인연합회 2007 환경기술인 Vol.24 No.3

도시화에 따른 하천의 변화 빛 복원방안 (끝)

이성호,Lee, Seong-Ho 한국환경기술인연합회 2007 환경기술인 Vol.24 No.4

플라스틱 광섬유를 이용한 무선광 차동검출기의 신호대잡음비 개선

이성호,Lee Seong-Ho 한국전자파학회 2005 한국전자파학회논문지 Vol.16 No.4

본 논문에서는 플라스틱 광섬유 묶음을 이용하여 차동검출기를 구성하고 무선광 연결 수신부에서 잡음광 소거에 활용하였다. 광섬유 묶음을 이용하여 수신광을 분리해서 2개의 포토다이오드에 연결하면, 동일한 지점에서 잡음광을 검출하는 효과가 발생하므로, 잡음광의 공간분포가 심하게 변하여도 2개의 포토다이오드의 위치 차이로 인한 출력 전압의 변동이 나타나지 않아 잡음 소거 효과가 높아진다. 광 필터가 부착된 단일의 광검출기에 비하여 광섬유 묶음을 사용한 수신부에서 신호대잡음비를 약 $10\;\cal{dB}$ 개선하였다. In this paper, optical noise is reduced by a differential detector with a plastic optical fiber bundle in a wireless optical interconnection. A plastic optical fiber bundle divides the received optical signal equally and connects it to two photodiodes. In this configuration two photodiodes effectively detect the optical signal at one point, and the output voltage variation due to the abrupt change of optical noise distribution in space disappears. The signal to noise ratio in a differential detector with a fiber bundle was improved to be $10\;\cal{dB}$ higher than in a single photodiode with an optical filter.

공공기관에서의 서비스 수준 협약(SLA)에 따른 IT 아웃소싱에 관한 연구

이성호,김희완,김동수,Lee, Sung Ho,Kim, Hee Wan,Kim, Dong Soo 서비스사이언스학회 2012 서비스연구 Vol.2 No.1

인터넷의 급속한 발전으로 공공기관 및 민간 기업에서는 정보시스템 유지보수를 위하여 IT 아웃소싱을 도입하고 있으며, 이를 관리하기 위하여 서비스 수준 협약(SLA)을 활용하고 있다. 정보시스템 아웃소싱을 효과적으로 추진하기 위한 방법으로서 SLA가 도입되고 있으나, 아직 공공기관에서는 서비스 수준 협약에 대한 도입이 보편화되거나 그 도입 효과성, 도입성과 등이 입증되고 있다 할 수 없다. 또한 아웃소싱에서 정보시스템의 중요성이 커지는 한편, 정보화 사업의 규모 증가, IT기술의 다양화, 정보시스템 간 상호연계의 확대, 정보시스템 운영 및 유지비용의 증가에 따라 정보시스템 운영을 효율화하고 활용성을 높일 필요성은 점차 커지고 있다. 이에 본 연구에서는 공공기관에서 정보시스템 아웃소싱을 효과적으로 추진하기 위한 방법으로서 서비스 수준 협약(SLA) 도입에 따른 추진방법과 고려사항 등을 살펴보고, SLA 적용을 통해 고객과 IT서비스 조직 상호간 명확한 관리 포인트 확보 및 IT서비스 수준 향상을 위한 IT서비스 마인드와 사전 예방 활동 강화의 효과를 볼 수 있다. With the rapid development of the Internet, public agencies and private companies introduced 'IT outsourcing in order to maintain and repair the information systems. Also they have utilized the SLA in order to manage it. Although IT outsourcing as a way to promote effective SLA are being introduced, the introduction of service level agreements or those introduced universal effectiveness did not demonstrate in the public agencies. The importance of outsourcing in the information systems is growing, but the increase in size of the business information, IT technology diversification, expansion of information between systems interconnection, information system operating and maintenance costs with the increase of information systems to streamline operations, increase the need for versatility is growing gradually. In this paper we investigates IT outsourcing in public agencies as a way to promote effective service level agreement(SLA) with the introduction and consideration, and through the application of SLA mutual customers and IT service organizations make a clear point of management and IT service levels and IT services for improved mind and strengthen the effectiveness of preventive activities can be seen.