• 한국펄프종이공학회:학술대회논문집
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• 한국펄프종이공학회 2011년도 춘계학술발표회 논문집
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• pp.111-117
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• 2011

• 한국군사과학기술학회지
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• 제20권6호
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• pp.835-843
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• 2017

The Technology Readiness Assessment(TRA) has the advantage of identifying immature technologies in promoting weapon system research and development project. However, a more diverse set of information is required for the determination of phase shift and technical risk management for weapons system R&D projects. In this paper, we investigate the various indexes the various indexes proposed to overcome the limitations of the Technology Readiness Level(TRL) and analyze the possibility of applying to the actual weapons system R&D projects. Based on the analysis, it was possible to provide additional information that could not be presented in TRA using technical risk indexes other than TRL, confirming that it could be used for technical risk management for weapons system R&D projects.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2022년도 제65차 동계학술대회논문집 30권1호
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• pp.121-122
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• 2022

본 논문에서는 키넥트 센서 기반의 체질량지수(BMI, Body Mass Index) 애플리케이션을 설계하고 구현한다. 이 애플리케이션은 키넥트 센서에서 측정하는 사용자의 신체 픽셀 정보와 거리정보를 활용하여 체질량 지수를 측정한다. 또한, 키넥트 센서에서 인식한 사용자의 스켈레톤 정보와 20개 조인트 정보를 활용하여 사용자의 신장을 측정한다. 사용자와 관리자의 화면을 별도로 구성해 관리자 화면상의 버튼으로 Database에 저장하는 기능을 제공한다.

• Environmental Engineering Research
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• 제22권2호
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• pp.193-202
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• 2017

The study estimated the relationship between carbon dioxide, crop and livestock production index in Ghana: Estimating the long-run elasticities and variance decomposition by employing a time series data spanning from 1960-2013 using both fit regression and ARDL models. There was evidence of a long-run equilibrium relationship between carbon dioxide emissions, crop production index and livestock production index. Evidence from the study shows that a 1% increase in crop production index will increase carbon dioxide emissions by 0.52%, while a 1% increase in livestock production index will increase carbon dioxide emissions by 0.81% in the long-run. There was evidence of a bidirectional causality between a crop production index and carbon dioxide emissions and a unidirectional causality exists from livestock production index to carbon dioxide emissions. Evidence from the variance decomposition shows that 37% of future fluctuations in carbon dioxide emissions are due to shocks in the crop production index while 18% of future fluctuations in carbon dioxide emissions are due to shocks in the livestock production index. Efforts towards reducing pre-production, production, transportation, processing and post-harvest losses are essential to reducing food wastage which affects Ghana's carbon footprint.

• 펄프종이기술
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• 제36권1호
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• pp.9-15
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• 2004

Micro inorganic solids and dissolved materials contained in the white water of linerboard process was obtained by centrifugation, and their characteristics were analyzed along with their effects on the mechanical properties of linerboard. Micro inorganic materials had little influence on tensile index and ZDT of UKP sheets. They showed rather a positive effect on mechanical properties of KOCC sheets due to adsorbed polymer. Mechanical properties of KOCC sheets decreased remarkably when the concentration of dissolved materials increased especially above 4000 ppm.

• 한국산학기술학회논문지
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• 제13권8호
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• pp.3371-3380
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• 2012

본 논문은 기술개발지원사업의 선정 평가지표를 개발하고, 사례에 적용하여 그 타당성을 파악하고 있다. 개발된 선정평가지표의 기업선정순위와 기존 선정평가지표의 기업선정순위를 비교하여 성과를 낸 기업의 순위를 어떤 선정평가지표가 더 정확히 유추해 냈는지를 확인하고 있다. BSC 및 AHP기법을 이용하여 기술개발지원사업 선정평가지표를 개발하였다.

• 보건의료산업학회지
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• 제9권3호
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• pp.43-55
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• 2015

Objectives : This study analyzed the managerial efficiency of hospitals and identified the productivity trends for three years. Methods : Data were collected from 44 tertiary hospitals and 32 university hospitals from 2009 to 2011. Efficiency scores and productivity trends were evaluated with the DEA (Data Envelopment Analysis) method. The input variables were the numbers of beds, doctors, nurses, and health personnel, and the medical costs. The output variables were the numbers of outpatients, and inpatients, and the medical revenues. Along with the traditional input-oriented DEA analysis, the Malmquist Productivity Index(MPI) was calculated. Results : First, the mean values of the study variables showed gradual increases in all the variables for all the study years. Second, technical efficiency scores varied depending on the study year. Third, MPI decreased from 2009 to 2010 (MPI=0.986), and then increased from 2010 to 2011(MPI=1.011). The contributions of the Efficiency Change Index and Technical Change Index on the MPI varied depending on the study year. Conclusions : This study provides information to hospital managers about changes in hospital performances. External environments had more influence on hospital performances, and hospital managers will need to manage these influences from factors surrounding the hospitals.

• 펄프종이기술
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• 제34권4호
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• pp.30-36
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• 2002

This research was conducted to investigate the feasibility of using deinked pulp of white ledger(DIP) for the manufacture of high quality premium tissue. The three types of tissues were prepared using the softener treated bleached DIP, softener treated mixed pulp of unbleached DIP and virgin pulp, and untreated mixed pulp of bleached DIP and virgin pulp, respectively, and their tensile index. softness, and brightness were measured and compared. The bulk and surface softness increased only slightly by the addition of softener(0.2% mineral oil) into the bleached DIP. The tensile index was decreased by 15∼30%, and the brightness was the range of 86% to 87% ISO. The softener(0.2∼0.8% mineral oil or dialkyl imidazoline) treatment of mixed pulp of unbleached DIP and virgin pulp Improved the bulk and surface of tissue considerably. However, the brightness was low as 85% ISO or below. Although the softness of the tissue made from bleached DIP blended with virgin pulp was the lowest among three types of tissues evaluated, its tensile index was the highest and brightness was 87∼88% ISO. Based on the results, it may be predicted that the bleached DIP blended with virgin pulp is the best raw material for the manufacture of high quality premium tissue if softener treatment is applied to mixed pulp, because the softness can be improved by the addition of softener. In general, the softness of tissue was improved with the increase in the amount of softener: However, the tensile index inversely proportional to the amount of softener added. Dialkyl imidazoline was more effective than mineral oil with respect to the improvement in softness, even though the loss in tensile index was severe with the treatment of dialkyl imidazoline.

• 펄프종이기술
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• 제48권2호
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• pp.5-12
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• 2016

White waste papers are very important resources in the paper industry, but their use is limited because of the residual of fluorescent whitening agent (FWA). So the removal of FWAs from waste paper is an important task in the recycling process to improve the use of recycled resources. In this study, we focused on the FWAs used for surface treatments and carried out physical and chemical treatments to remove them from white waste papers. The white waste papers were disintegrated with a surfactant in different pH and temperature conditions, and then handsheets were made for the measurement of the fluorescence index, which is proportional to the amount of FWAs on papers. The effect of the flotation process on the removal of FWAs after disintegration was also investigated. The fluorescence index decreased as the disintegration time increased, but over a relatively long time, the fluorescence index increased again, which indicated the readsorption of the FWAs detached from the cellulosic fibers of the white waste papers. The lowest fluorescence index was shown when the waste papers were disintegrated with a 0.3% surfactant addition at pH 10 and at $45^{\circ}C$. However, the flotation treatment was not effective, because the flotation induced contact between the detached FWAs and the cellulosic fibers, and re-adsorption occurred.

• 한국건설관리학회논문집
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• 제9권6호
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• pp.216-224
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• 2008

최근 들어 선진국에서는 LCC에 대한 평가 제도를 활발히 활용 중에 있고, 우리나라는 생애주기비용을 절감하기 위하여 그 제도를 신규로 도입하고 있다. 그리고 새로운 정부공사 발주방식인 “기술제안형 입찰방식” 도입에 따라 시설물의 LCC 평가가 필요하게 되었다. 현재 우리나라는 BTL과 턴키 프로젝트에서 LCC를 평가하고 있으나 평가요소와 기준이 불명확하여 평가에 어려움을 겪고 있고, BTL과 턴키를 제외한 공공건설사업은 LCC 평가가 이루어지지 않고 있는 실정이다. 따라서 본 연구에서는 LCC를 체계적이고 객관적인 평가를 위한 평가기준 및 활용방안을 제시하고자 한다. LCC 평가기준을 도출을 위한 연구방법 및 주요결과는 다음과 같다. (1) 기존의 평가기준을 분석하여 평가기준의 필요성 및 문제점을 파악하고, (2) 보고서분석 및 설문조사를 통하여 LCC 평가기준을 도출하였고, (3) 실무에서 합리적으로 활용할 수 있도록 활용방안 및 평가방법을 제시하였다.