• Journal of Food Hygiene and Safety
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• v.38 no.6
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• pp.508-516
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• 2023

The consumption of enoki mushrooms has been associated with cases of listeriosis produced by Listeria monocytogenes, highlighting the significance of sanitizing food-contact surface, such as the velcro used in welding processing of enoki mushrooms, to ensure microbial safety. We investigated the inhibitory activity of nine chemical disinfectants at regular concentrations against L. monocytogenes isolated from a mushroom farm environment. The bacterial suspension was prepared in phosphate buffered saline and mushroom extract broth and inoculated onto the velcro surface. After inoculation, most disinfectants reduced the initial 8 log CFU/coupon concentration by less than 2 log CFU/coupon during a 5-min treatment. Slightly acidic hypochlorous water showed a reduction of approximately 4 log CFU/coupon when tested for more than 30 min at the maximum allowable concentration of 200 mg/L. Sodium hypochlorite solution showed a reduction of approximately 5 log CFU/coupon when used at 100 mg/L for 60 min. Peracetic acid, at the maximum allowable concentration of 300 mg/L, showed the most effective reduction of 5 log CFU/coupon or more when the surface was treated with 37.5 mg/L for 30 min. These results indicate that peracetic acid can be used as the disinfectant strategy to control cross-contamination of L. monocytogenes on the velcro surface of plastic wrappers used in the welding processing of enoki mushrooms.

• Culinary science and hospitality research
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• v.13 no.1 s.32
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• pp.224-234
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• 2007

Consumers' awareness has been changing through the development of information industry and change of life style. To understand the new generation came to be our concern in terms of being able to predict the trend of the future. Companies are trying to go through the market-change by making a marketing strategy that matches their emotion and characteristics. There should be a research on the new generation, specially university students, according to sex. Therefore, this research covers the university students in early twenties to see the differences between sexes. Foodservice industry needs to have consideration on coupon-books. It is reconfirmed that advertisement by word of mouth is still effective in sales promotion.

• 한국가스학회:학술대회논문집
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• 2001.10a
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• pp.45-57
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• 2001

An alternating current (AC) corrosion using coupon has been studied. Coupons were applied in terms of AC voltage from high value to low value through the survey of AC voltages on buried gas transmission pipeline over the country. Parameters such as AC current density of coupon, AC voltage, cathodic protection potential, soil resistivity and frequency were monitored continually. Corrosion induced by AC was observed even under cathodically protected condition that met cathodic protection criterion(: below -850mv vs. CSE). Corrosion rate was affected mainly not by AC voltage but by both of frequency and AC current density. An experimental corrosion rate relationship could be obtained statistically, in which AC corrosion rate increased linearly with effective AC current density and its slope was 0.619.

• Management Science and Financial Engineering
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• v.7 no.1
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• pp.1-26
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• 2001

Assume a company sells two products (a and B) in a retail market. the company adopts a specific promotion mechanism, Tie-in Promotion, in which product A's promotional discount coupon is distributed whenever a consumer purchases product B. Product A will later e sold at a markdown price when consumers eventually take the opportunity to redeem the coupon. in the integrated tie-in promotion and stocking policy, we assume managers of two products coordinate by sharing information on the demand forecast and deciding the order quantities and tie-in promotion program to maximize joint profits. The optimal integrated tie-in policy is analyzed. The integrated tie-in promotion model is then compared with two other base models: (1) a decentralized Newsboy model in which no promotion is considered, and (2) an individual promotion model in which managers design a promotion program to promote one of the two products directly. The factors that make an integrated tie-in promotion a better approach are studied.

• Transactions of the Korean Society of Automotive Engineers
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• v.18 no.6
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• pp.1-6
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• 2010

Aluminum rear lower arm is designed for luxury sedan and manufactured by hollow sand casting in the present study. Here we present the relationship between local microstructure and coupon tensile test in the rear lower arm. The characteristics of the local tensile deformation are supposed to be dependent upon Si distribution and DAS (dendrite arm spacing). Si distribution affects the yield strength and DAS affects the elongation of local area in the part, respectively.

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.07a
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• pp.237-240
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• 2013

21세기 스마트폰이 활성화됨에 따라 SNS(Social Network Service)의 사용이 급증하고 있으며, 기업 및 개인은 SNS의 파장효과를 이용하여 홍보 수단으로 활용하고 있다. 다양한 SNS가 존재함에 따라 각 SNS 별도의 계정을 이용하여 운영하고 있다. 이에 따라 각각의 독립적인 운영으로 관리작업이 늘어나고 효율적인 활용이 제약받게 된다. 본 논문에서는 HTML5 웹 표준화 기술을 적용, 운영체제(OS), 스크린(Screen), 브라우저(Browser)에 제약받지 않는 APP을 구현(implement)하고, 이 APP으로 홍보뿐만 아닌 기존의 쿠폰이 제공하지 못하는 사용자의 편의성 부분을, 스마트폰이 탑재하고 있는 NFC 기반의 모바일 쿠폰시스템까지 구현한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2017.07a
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• pp.411-412
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• 2017

쿠폰은 마케팅의 주요 전략 중 하나로 널리 이용된다. 그러나 적시적소에 제공되지 않는 쿠폰은 대부분 버려지게 된다. 본 논문은 사용자가 관광지의 어떤 관심지점에 근접했을 때, 해당 관심지점이 발행한 쿠폰정보를 능동적으로 알려주는 시스템을 개발한다. 이를 위하여, 쿠폰발행자와 이용자 등록 시스템, 쿠폰발행자의 쿠폰정보와 해당 관심지점 정보를 등록하는 시스템, 이용자들의 현재 위치를 인지하는 시스템, 이용된 쿠폰정보를 기록하는 시스템 등을 구현하였다.

• Journal of the Korean institute of surface engineering
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• v.35 no.1
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• pp.11-16
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• 2002

As environmental concerns increasing, the electronics industry is focusing more attention on lead free solder alternatives. In this research, we have researched wettability of intermediate solder of Sn3Ag9Bi5In, which include In and Bi and has similar melting temperature to Sn37Pb eutectic solder. We investigated the wetting property of Sn3Ag9Bi5In. To estimate wettability of Sn3Ag9Bi5In solder on various substrates, the wettability of Sn3Ag9Bi5In solder on high-pure Cu-coupon was measured. Cu-coupon that plated Sn, Ni and Au/Ni and Si-wafer adsorbed Ni/Cu under bump metallurgy on one side. As a result, the wetting property of Sn3Ag9Bi5In solder is a little better than that of Sn37Pb and Sn3.5Ag.

• Journal of the Korean Society for Railway
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• v.9 no.1 s.32
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• pp.57-62
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• 2006

Composite thin-walled members for civil engineering application are mainly produced by pultrusion technique, and they are generally made of a polymeric resin system reinforced by E-glass fibers due to economical reason. This material combination results in low elastic moduli of the composite materials and makes the design of composite members to be governed by stability limit state. Therefore the buckling behavior of composite thin-walled members was experimentally investigated in the present study. Axial compression was applied on each specimens by a hydraulic ram and knife edge fixtures were placed at both ends to simulate simple boundary condition. Axial compression, lateral displacements and twisting at the mid-height of each specimen were measured by a set of transducers during buckling test. The experimental buckling loads were compared with analytical results obtained through isotropic formulas. In the calculation of analytical results, elastic properties such as Young's modulus(E) and shear modulus(G) were replaced with EL and GLT obtained from coupon tests, respectively.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.1619-1622
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• 2012

최근의 인터넷환경하에서 고객들과의 소통을 통한 관계의 이해와 관리 필요성이 증가하면서 고객관계관리(Customer Relationship Management, CRM)가 중요한 기능으로 고려되고 있다. CRM은 인터넷의 발달과 함께 e-CRM으로 발전되었으며, 최근 소셜 네트워크 서비스(Social Network Service, SNS)가 활성화되면서 s-CRM으로 변화하고 있다. SNS 는 자기를 표현하는 프로필과 사용자 간의 연결을 통한 소통으로 구성되어 있으며, 사용자간의 의견교환을 통한 자발적인 홍보와 노출뿐만 아니라 고객과 기업의 직접적인 커뮤니케이션 창구로서 CRM 마케팅을 펼치기에 적합하다. 본 연구는 SNS 중 현재 가장 많은 회원을 보유한 페이스북 팬페이지에서 e 쿠폰 발행을 매개로 소셜 네트워크 이용자들을 대상으로 충성 고객을 확보하기 위한 요인들을 분석하였다. 본 연구 결과는 페이스북 기업 팬페이지의 좋아요, e 쿠폰 발행, e 쿠폰 사용내역에서의 각 요인들의 영향을 분석하였다.