• 한국염색가공학회지
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• 제10권4호
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• pp.45-52
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• 1998

Reuse of wastewater become an important consideration to solve the environmental pollution problems in recent industriallzation and urbanization. Especially, he characteristic of dyeing process is subject to use much water and thus has serious problems for removal of color and organic pollutants in their wastewater. This report is divided into two main parts ： The purpose of the first part was to determine if alkaline wastewater discharged from textile dyeing operation factory could be flocculated directly by Fenton oxidation method. This study was conducted to investigate Fenton reagent dose and reaction condition of Fenton method as pretreatment for dyeing wastewater in K dyeing industry were investigated. In the second part of this research, to treat dyeing wastewater it was found that the most effective way is to use ultrafiltation and reverse osmosis at the conditions of the pH 7.0~8.0 and operating pressure of $2.5~35kg_f/cm^2$. This paper is mainly dealt with the application on reuse system of dyeing wastewater treatment using ultrafiltration and reverse osmosis membranes. The results showed that dyeing wastewater could be reused by chemical, filter and membrane sequential treatment process.

• 한국정보처리학회논문지
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• 제7권4호
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• pp.1092-1102
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• 2000

In this paper, we made software components reusable through syntax-analysis method, designed a Viewer for understanding component information, and retrieved similar components by using Enhanced SARM. Because SARM requires a lot of computation time, it was enhanced by reducing unnecessary activation value. Also GUI was designed for component-query relationship and Viewer represents hierarchy diagram of a retrieved component. This system supports facilities which can insert and delete components on diagram. For a component modification, this system supports a editor to rebuild class inheritance relationship. In this paper, SCRS (software components reuse system) is consisted of syntax-analysis method, component-query relationship interface, retrieval (Enhanced SARM), diagram viewer, reuse on diagram, and a editor.

• 대한임베디드공학회논문지
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• 제18권1호
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• pp.9-17
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• 2023

This paper relates to the development of a device for measuring the efficiency of a solar panel based on a variable constant current, and proposed a standard for reuse of the solar panel. By applying a variable constant current circuit to a solar panel efficiency measuring device, it was easy to apply a maximum power point tracking (MPPT) algorithm. In addition, a load dispersion method was applied to measure the efficiency of a high-capacity solar panel. and it is possible to solve a problematic thermal runaway during a MOSFET parallel operation by applying the load dispersion method. As a result of the experiment, the solar panel efficiency measuring device was able to accommodate a large solar panel of 350W, which is the maximum measurement goal. In this paper, the validity was confirmed through the 310W solar panel efficiency measurement experiment collected after removal.

• 한국게임학회 논문지
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• 제10권2호
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• pp.99-112
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• 2010

교육용 게임은 이용자의 관점에서 새롭게 인식하고, 재미와 교육적 요소가 합쳐진 교육용 게임 개발이 필요하다. 따라서 본 연구에서는 에듀테인먼트 콘텐츠 및 교육용 게임 재이용 요인들이 서비스를 재이용함에 미치는 영향을 구체적으로 파악하였다. 그리고 각 요인들 사이의 특징적 차이 및 중요성과 가중치 정도를 알아보고자 한다. 또한 요인들을 체계적으로 분석함으로써 교육용 게임의 재이용 요인들이 미치는 영향을 파악하고, 교육용 게임 산업의 활성화를 위한 방안을 제시하고자 한다. 마지막으로는 교육용 게임 이용의 지속적 유지와 재이용율을 높이는데 마케팅적 방안을 제시하고자 한다.

• 품질경영학회지
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• 제43권2호
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• pp.185-200
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• 2015

Purpose: Present study was designed to examine the casual relationships among tourism information service quality, value, user satisfaction, and reuse intention in social network service(SNS). Also, we intended to testify the mediating role of value in causal model. We applied path analysis model in order to test the hypotheses and research model. Methods: Survey tool, that is, questionnaire has obtained validity through literature survey, exploratory survey and pretest and sample 272 was selected. For statistical treatment of pretest and main analysis, SPSS18.0 and AMOS18.0 were employed and structural equation model was employed as analysis method. Results: Result of this study shows as follows. Two factors(ease of understanding and structure) have an effect on user satisfaction and reuse intention, and we found that value played a significant and important role in causal relationship. Therefore, value was empirically confirmed as t he import ant fact or preceding user satisfaction and reuse intention. Conclusion: Present study shows that two factors(ease of understanding and structure) in via of value, were important factors that related business companies have to emphasize to raise performance. However, present study has some limitations to additionally research in the future.

• 한국물환경학회지
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• 제21권2호
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• pp.190-195
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• 2005

The laboratory and pilot scale BAFs (biological aerated filters) were operated with 0.3 hr to 1.1 hr EBCT(empty bed contact time) at a maximum filtration rate of $472m^3/m^2/day$ as a treatment method for reuse of secondary effluent and by-pass flow in this study. The effluent BOD and SS were generally 3.5 to 5 mg/L and 2 to 3 mg/L, respectively with 2ndary effluent, but the SS concentrations increased to 4 to 8 mg/L with the increased flow rates of by-pass flow. Potential nitrification rates were very high, but the nitrogen removal efficiencies were low due to the limited carbon sources. Bypass of a part of primary effluent seemed to be desirable to increase the nitrogen removal. Disinfection must be furnished for the reuse of BAF effluent.

• 한국산업정보학회논문지
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• 제16권2호
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• pp.125-137
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• 2011

본 연구는 부동산정보 사이트의 서비스품질, 사이트에 대한 신뢰, 고객만족 및 재이용의도 간의 관계를 구조적으로 파악하고자 하는 데에 그 목적이었다. 연구목적을 달성하기 위하여 부동산정보 사이트 이용경험이 있는 293명을 대상으로 설문조사를 실시하였다. 분석결과 부동산정보 사이트 이용자가 지각하는 서비스품질이 이용자의 신뢰와 만족도에 통계적으로 유의적인 영향을 미치며, 신뢰는 이용자의 만족도 및 재이용의도에 유의한 영향을 미치는 것으로 나타났다. 또한 부동산정보 사이트에 대한 고객만족도는 재이용의도에 유의한 영향을 미치는 것으로 나타났다. 이러한 실증분석 결과는 인터넷 부동산정보 사이트의 서비스품질이 높을수록 이용자의 높은 신뢰관계를 형성하고 이를 통해 고객만족도와 재이용의도에 긍정적인 영향을 미치고 있음을 확인한 것으로 그 의미가 있다고 할 수 있다.

• 컴퓨터교육학회논문지
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• 제5권1호
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• pp.99-108
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• 2002

윈도우 프로그래밍과 인터넷 프로그래밍의 수요가 증대함에 따라 객체 지향 프로그래밍 언어에 대한 교육과 객체 지향 소프트웨어 개발에 관한 교육의 중요성이 높아가고 있다. 그러나, 새로운 분야의 개발 기법을 익힌다는 것은 쉬운 일이 아니다. 본 논문에서는 소프트웨어 재사용의 개념과 기법을 객체 모델링 교육에 접목하려고 노력하였다. 즉, 객체 모델링 단계에서 이전의 경험을 재사용할 수 있는 환경을 통해 객체 모델 구축 기법을 효과적으로 학습하도록 지원하고자 한다. 이를 위하여 학습과정에서 질의와 라이브러리에 저장된 컴포넌트에 대한 유사,일치성(Aanalogy)을 판단하여 라이브러리의 모델과 패턴을 재사용할 수 있는 방법을 제안하였다. 이로써 이미 잘 정의된 모델의 이해를 통해 교육 과정의 효과를 증대할 수 있을 것으로 기대한다. 또한 유추 기법(Analogy reasoning) 활용하므로써 단순한 키워드에 의한 재사용 라이브러리 검색 보다는 보다 폭넓은 범위의 대상 검색이 가능하도록 지원한다.

• 한국정보시스템학회지:정보시스템연구
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• 제30권3호
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• pp.1-20
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• 2021

Purpose Live streaming commerce refers to the fact that people receive live audio and live video directly over the net. While some e-retailers use Live Streaming as a marketing strategy, the impact of live streaming commerce on customers' reuse intentions is unknown. The purpose of this study is to discuss the impact of live streaming commerce by external environmental factors based on S-O-R theory. Design/methodology/approach In this study, we developed a research model based on the S-O-R theory. Using the questionnaire survey method, consumers who used live streaming commerce on Taobao.com were taken as research subjects. Our research model aims to find out how content attributes, real-time interactions, media characteristics, and situational characteristics as stimulus factors influence consumers' perceptions and thus reuse intentions. Findings The results of the analysis show that external environmental factors have a significant impact on consumer perceptions and that perceived risks and flows can influence consumers' reuse intentions. In addition, we also examined the impact of reuse intentions on consumers' active participation. These results show that live streaming commerce can influence consumer perceptions and behavior in several ways.

• 대한치과보철학회지
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• 제45권5호
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• pp.644-652
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• 2007

Statement of problem: Resonance frequency analysis is evaluated as the non-invasive and objective method for the evaluation of implant stability and has been increasingly used. It is necessary to evaluate the factors affect the ISQ measurement stability. Purpose: This study was performed to evaluate the effect of the autoclave sterilization and reuse of $Smartpeg^{TM}$ on ISQ measurement. Material and methods: $SmartPeg^{TM}$ (Integration Diagnostics Ltd., $G\ddot{o}teborg$, Sweden) of autoclave group (A) was autoclave sterilized 9 times and $Smartpeg^{TM}$ of reuse group (R) was reused 9 times. Ten $SmartPeg^{TM}s$ were allocated to each group and after each autoclave sterilization and reuse, implant stability quotient (ISQ) values were measured 3 times from the two directions a and b at a right angle. $Osstell^{TM}$ mentor (Integration Diagnostics Ltd. $G\ddot{o}teborg$, Sweden) was used and type 1 (article no. 100353) $Smartpeg^{TM}$ was selected according to $Smartpeg^{TM}$ reference list. Osstem Implant US II future (Osstem Co., Seoul, Korea) in $4.0mm{\times}11.5mm$ was embedded in the self-curing acrylic resin ($Orthojet^{(R)}$, Lang Dental, U.S.A.). Data was statistically analyzed by one-way ANOVA $({\alpha}=.05)$ and scheffe test was done where a significant difference exist. Correlation test was also done between ISQ value and the number of autoclave sterilization or reuse. Results: 1. In autoclave group, the means and sd. of ISQ value before autoclave sterilization were $84.97{\pm}0.41,\;84.93{\pm}0.74$ at direction a and b. There was significant differences between autoclave groups at direction a and b (P=.000). 2. In reuse group, the means and sd. of ISQ value before reuse were $85.40{\pm}0.62,\;85.50{\pm}0.57$ at direction a and b. There was no significant difference between reuse groups at direction a and b (P>.05). 3. There was a weak positive correlation between the number of reuse and ISQ value at direction a and b (${\gamma}=.207$ and .246, P<.01). Conclusion: Within the limitations of this study, the following conclusions were drawn. Till ninth reuse of $Smartpeg^{TM}$, the ISQ measurement stability did not be affected. After twice autoclave sterilization of $Smartpeg^{TM}$ the ISQ measurement stability was affected.