• 한국물환경학회지
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• 제22권3호
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• pp.406-409
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• 2006

• 한국관개배수논문집
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• 제14권1호
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• pp.29-40
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• 2007

• Asian Journal of Innovation and Policy
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• 제5권1호
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• pp.55-77
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• 2016

This paper focuses on how an integrated or systemic approach is needed to both investigate and connect different kinds of interdisciplinary inquiry and knowledge within and beyond universities to encourage more productive collaboration with the other three ‘macro stakeholders’ - government, business, and the wider community. In this way universities can and should provide a greater leadership role in sustainability, innovation and policy studies. Such a framework is needed to also help to change the view of many that academics should just play a supporting role of providing specialised technical expertise only to the other macro stakeholders. The interdisciplinary and collaborative framework developed here is applied to the on-going water crisis in Malaysia - an exemplary complex problem-solving basis for seeking sustainable policy solutions to diverse challenges. As further discussed, this was applied also in practice to a multi-stakeholder seminar on addressing the difficult policy challenges of the Malaysian water industry and sector.

• 펄프종이기술
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• 제35권1호
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• pp.7-12
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• 2003

The test results for water repellency of paper and paperboard according to KS M 7057 can readily be influenced by an operator's bias. In order to discard such bias, the automatic analysis program of water repellency was developed based on different shape features of a liquid trace formed on a specimen. That is, the shape of a liquid track flowing down on the specimen with an angle of $45^{\circ}$ was evaluated according to width variation between head and tail of the trace($S_{Hr}$), uniformity of a liquid flow($S_{d}$), length of long traces($L_{SHr}$), eccentricity of liquid traces($E_{i}$), and then was recognized as a specific degree of water repellency. Finally, the automatic analysis system of water repellency based upon KS M 7057 made it possible to readily measure water resistance of paper and paperboards classified into R0 to R10.

• 펄프종이기술
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• 제31권4호
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• pp.1-7
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• 1999

This study was carried out to simulate the change of various properties of recycled water when zero-discharge system was applied to a KOCC recycling process. contaminants such as chemical oxygen demand, anionic trash, and calcium hardness were gradually increased in the process water as the recycling was repeated . Especially, the increase of anionic trash and COD were closely related to the starch derived from corrugating adhesive in KOCC. Four kinds of water were compared in the preparation of handsheet to evaluate the performance of retention program. Waters used in this work were laboratory tab water, process water from Dong-II mill and the same one treated by UASB process, and closed white water prepared by KRICT. The result revealed that one the major factors fro reducing a retention power was the anioni trash accumulated in the recycled water.

• 한국산업융합학회 논문집
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• 제23권1호
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• pp.17-24
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• 2020

This study analyzes economic feasibility by looking at the case of wastewater reclamation and reuse system of Osan, the only place currently operated in Korea, exploiting wastewater uniquely reused as industrial water. Furthermore, this paper examines the problem in wastewater recycling and present the method to expand the potential of using reclaimed water. Method to activate the reuse of wastewater as industrial water. First, it is required to provide self-governing body and demander with diverse information on this project so that they correctly recognize the reuse of wastewater as industrial water. Second, law should be amended so that the water quality requirement of reused water can be given in the national level to supply industrial water depending on right standard. Third, financial support should be expanded in diverse parts so that more private investment advantageous to investor can be made, for instance, BTL, BTO.

• 한국조리학회지
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• 제23권4호
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• pp.105-115
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• 2017

Water is an essential ingredient to brew coffee. Mineral contents in the water can affect both water quality and taste quality of coffee. The effects of minerals in the water on sensory characteristics of coffee were investigated in different water samples (A: Arisu, B: Claris, C: Spring water, D: Samdasoo, E: Evian, Distilled water as control). Based on the results of quantitative descriptive analysis (QDA), there were statistically significant (p<0.01) in flavor, acidity, bitterness, sweetness, body and aftertaste according to different water samples used to brew coffee. The canonical correlation analysis of minerals (Ca, Mg, Na, K) and taste (acidity, bitterness, sweetness) indicated that there were highly correlated in the relationship between bitterness and Mg content. A strong negative relationship was shown between bitterness and acidity, sweetness. A result of preference test using hedonic scale showed an inverse linear relationship between taste quality and total mineral contents.

• 경영과정보연구
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• 제36권3호
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• pp.89-111
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• 2017

오늘날의 시대는 블랙골드(black gold)시대를 벗어나 이제 블루골드(blue gold)의 시대가 도래되었다고 할 수 있다. 물에 대한 중요성이 증가되는 가운데, 물 산업의 발전을 위한 지원 및 정책이 제시되고 있다. 물 산업은 공공서비스이지만, 불균형한 공급으로 인한 문제점들이 존재하며 이를 해결하기 위해서 공공서비스의 민영화라는 주제와 관련해 가장 민감하고 관심이 집중된 분야라고 할 수 있다. 우리나라도 이러한 물 산업의 민영화에 대한 주제가 언급되면서 현행 수도법에 근간한 민영화 운영방식 중 하나인 전문기관(한국수자원공사)에 의한 민간위탁이라는 방식으로 공공서비스의 효율성을 높이고자 사업을 진행 중에 있다. 따라서 본 연구에서는 지방상수도 민간위탁 운영을 실행 중인 18개 지역의 위탁사업소들을 대상으로, 2012년부터 2014년까지의 데이터를 바탕으로 하여 민간위탁운영에 대한 효율성 및 생산성 분석을 실시하고자 한다. 본 연구의 효율성 분석결과, 3개년 동안 18개의 위탁기관 중 10개 기관이 효율적인 기관으로 나타났으며 생산성 변화에 대한 분석을 실시한 결과, 1기(2012-2013년)에서 2기(2013-2014년)로 넘어가는 동안 생산성이 감소된 것을 확인할 수 있었다. 이러한 생산성에 영향을 미치는 원인은 누수율과 원수의 유효이용률로 선정하였고 누수율의 경우 생산성에 부(-)의 영향을 미치는 것으로 나타났고 원수의 유효이용률의 경우, 생산성에 정(+)의 영향을 미치는 것으로 나타났다. 따라서 본 연구는 현 수도사업의 문제점을 해결하기 위한 해결책에 대한 효율성과 생산성을 분석하였다는 점에서 기존의 수도사업과 관련된 연구들이 제시하지 못한 시사점을 지니고 있다고 할 수 있다.

• 한국방재안전학회논문집
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• 제15권2호
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• pp.27-36
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• 2022

공업용수 공급의 적정성평가는 산업단지 건설의 핵심 요소이다. 본 연구에서는 옥산산업단지를 대상으로 산업단지의 계획 및 조성과 입주기업의 운영 이용률에 따라 공업용수 공급량에 대하여 조사하였다. 공업용수 공급량 산정을 위하여 급수계획 수립 시 기초자료와 토지이용계획 분석을 이용하였으며, 공업용수 산정의 기초가 되는 산업별 기본단위 적정성을 평가하였다. 또한, 청주시 내 산업단지 중 연구 대상지역으로 선정한 옥산 산업단지대상으로 공업용수 사용량 자료와 산업별 원단위를 의 실제 자료에 대하여 비교 평가를 수행하였다. 연구 결과, 공업용수 첨두부하율을 실 사용량을과 비교하였을 경우, 첨두 부하율이 2배 이상 차이가 나는 것으로 조사되었으며, 실제 공업용수 사용량과 차이가 있는 것을 확인하였다. 또한, 용수를 적게 사용하는 산업에서의 원단위는 증가하는 것으로 확인하였으며, 용수를 많이 사용하는 산업의 원단위는 크게 감소함을 확인하였다.

• 한국의류산업학회지
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• 제22권1호
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• pp.112-118
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• 2020

This paper examined the water repellency, water proofing and water vapor permeability of twelve types of woven fabrics for sports wear clothing. Their physical properties were compared and discussed with the fabric structural parameters and surface finishing effect. A water repellent property of 100% was obtained in the coated or laminated water repellent finished fabrics; in addition, cotton/nylon breathable composite fabrics treated with a laminated finishing and with low fabric density showed a 90% water repellency. Water proofing fabric above 6,000 mm H₂O hydraulic pressure was achieved by coated or laminated finishing; however, high density fabric or medium-level coated fabrics exhibited 100% water repellent and low water proofing characteristics. Superior water vapor permeability characteristics with good water repellency and proofing properties were achieved at the 2.5 layered low density and with 0.7 - 0.9 cover factor nylon fabrics treated with hydrophilic laminated finishing. The regression analysis for examining the effects of fabric structural parameters and surface finishing such as coating and laminating to the water vapor permeability exhibited a high determination coefficient of fabric structural parameters of 63.5%; in addition,, main factors among fabric structural parameters appeared to be cover factor and fabric thickness per weight. Coating and Laminating factors exhibited determination coefficient of water vapor permeability parameters of 36.5%.