• 유통과학연구
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• 제17권7호
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• pp.99-109
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• 2019

Purpose - The purpose of this development the business model of the healthcare sector in order to promote patents satisfaction towards medical sector services improvement for the medical business model innovation to possess a competitive advantage in the medical and pharmaceutical industry. Research design, data, and methodology - Safety standard protocol from existing multidisciplinary literature is a process of theorization, which uses grounded theory methodology rather than a description of the data and the targeted phenomenon by using Jabareen (2009). The first task is to map the spectrum of food safety literature regarding the phenomenon in safety management. This process includes developing the implementation factors and other sources such as existing business models and practices into the protocol design. Results - The study suggests the conceptual framework to improve the safety management for patients' environmental sustainability performance. Conclusion - The business model may support the beneficial aspect to healthcare government's policymakers, hospital employees, and medical specialist who can apply the practical perspective of its value regarding an educational protocol. Originality/value - This study contributes to and extends our understanding of environmental sustainability performance, identifying the rationale for safety standards performance in the healthcare industry with suggested hybrid safety standards market consumer interconnector.

• Earthquakes and Structures
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• 제15권3호
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• pp.253-261
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• 2018

This article details a bridge-specific fragility method developed to enhance the seismic design and resilience of bridges. Current seismic design processes provide guidance for the design of a bridge that will not collapse during a design hazard event. However, they do not provide performance information of the bridge at different hazard levels or due to design changes. Therefore, there is a need for a supplement to this design process that will provide statistical information on the performance of a bridge, beyond traditional emphases on collapse prevention. This article proposes a bridge-specific parameterized fragility method to enable efficient estimation of various levels of damage probability for alternative bridge design parameters. A multi-parameter demand model is developed to incorporate bridge design details directly in the fragility estimation. Monte Carlo simulation and Logistic regression are used to determine the fragility of the bridge or bridge component. The resulting parameterized fragility model offers a basis for a bridge-specific design tool to explore the influence of design parameter variation on the expected performance of a bridge. When used as part of the design process, these tools can help to transform a prescriptive approach into a more performance-based approach, efficiently providing probabilistic performance information about a new bridge design. An example of the method and resulting fragility estimation is presented.

• 신재생에너지
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• 제18권2호
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• pp.60-72
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• 2022

The environmental, social, and governance (ESG) score is gaining recognition as important nonfinancial investment criteria. With climate change emerging as a global issue, energy companies must pay attention to the ESG impact on corporate performance. In this study, the ESG impact on the performance of energy companies was analyzed based on 23 companies selected from the S&P 500. The panel corrected standard error methodology was used. The Refinitiv ESG score was the independent variable, and financial performance metrics, such as Tobin's Q, return on assets, and return on equity, were the dependent variables. It was found that the ESG score is positively associated with long-term corporate value but not with short-term profitability in the electricity utility industry. Among the subcategories of ESG, the environmental and social scores also showed positive correlations with long-term corporate value. A direct incentive policy is recommended that can offset expenses for ESG activities to reduce carbon emission in the energy sector.

• 산경연구논집
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• 제13권7호
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• pp.17-25
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• 2022

Purpose: Environmental contamination has lately been seen as a consequence of the rise in environmental challenges brought on by rapid industrial expansion. At this point, the current research asks an important question about what the factors are to motivate employees' green performance, increasing corporate sustainability. Research design, data and methodology:The current author selected total 19 items to obtain real data and achieve the purpose of this research. For measuring of the causality between the worker's innovative capability and green performance, the current author used the multiple regression statistical tool using U.S. 215 responses in four industry. Results: The statistical finding definitely indicated that there exists the causal linkage between two key factors (Innovation capability and green performance) as well as the strong direction between two constructs. As a result, the current author could accept all hypotheses, checking no existing the multicollinearity of the present constructs with 'TOL' and 'VIF' values. Conclusions: The present research concluded that literature and business management scholars and practitioners will benefit from this study's statistical results. Furthermore, rewarding staff creativity, encouraging quick answers to market movements, and incorporating technology into everyday operations are all ways that companies may cultivate an environmental stewardship culture.

• 한국산업정보학회논문지
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• 제28권6호
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• pp.173-187
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• 2023

본 연구는 지속가능경영보고서를 발간하는 상장기업을 대상으로 ESG 성과가 외국인지 분율에 긍정적인 영향을 미치는지 확인하는 것을 목적으로 한다. 나아가, 지속가능경영보고서 내 환경정보를 TCFD 권고안에 맞춰 공시했는지가 ESG 성과와 외국인지분율 간의 관계를 조절하는지 검증한다. 실증분석 결과는 다음과 같다. 첫째, 해당 연도의 ESG 성과 및 다음 연도의 외국인지분율 사이에는 양의 상관관계를 가진다. 즉, 기업의 ESG 성과가 높을수록 외국인지분율도 높아진다. 둘째, TCFD 권고안에 따른 환경정보 공시 여부가 ESG 성과와 외국인지분율 간의 관계를 양의 방향으로 조절한다. 즉, TCFD 권고안에 따른 환경정보 공시는 ESG 성과와 외국인지분율 간의 양의 상관관계를 더 강화한다. 결론적으로 본 연구는 외국인 투자자는 ESG 성과가 좋은 기업에 더 투자하며 특히 TCFD 권고안에 따라 환경정보를 공시하는 기업의 경우 그 효과가 더 크다는 것을 보여준다.

• 환경정책연구
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• 제5권3호
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• pp.1-24
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• 2006

최근 들어 기업의 사회적 책임이 강조되면서 환경보전을 위한 기업의 노력이 확대되고 있다. 과거에는 기업의 환경투자는 비용요인으로 기업의 재무성과에 악영향을 미친다고 생각되어 왔으나 최근에 환경투자는 기업가치 제고의 수단으로 인식되고 있기도 하다. 이러한 상황에서 본 연구에서는 기업의 경영성과와 환경성과 사이에는 어떤 관계가 있는가를 탐구하였다. 본 연구에서는 기업의 재무성과를 기존 연구에서 이용하였던 수익성 지표뿐만 아니라 기업의 파산위험이라는 측면에서 측정하였다. 그 결과 환경성과는 기업의 수익성 지표인 ROE와 양의 상관관계에 있을 뿐만 아니라 기업의 위험지표인 부도확률과 음의 상관관계가 있는 것으로 나타났다. 본 연구의 결과는 기업들이 기업지속가능성(corporate sustainability) 차원에서 환경투자가 필수불가결하다는 것을 시사하고 있다. 물론 탁월한 환경성과가 높은 재무성과를 보장하는 충분조건은 아니나 적어도 높은 재무성과를 위한 필요조건이라 할 수 있다. 따라서 기업은 환경투자를 단순한 비용으로 인식하지 말고 미래의 수익성 제고를 위한 투자로 인식하여야 할 것이다.

• 한국물환경학회지
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• 제36권6호
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• pp.568-580
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• 2020

Calibrating a conceptual hydrologic model necessitates selection of a calibration period that produces the most reliable prediction. This often must be chosen randomly, however, since there is no objective guidance. Observation plays the most important role in the calibration or uncertainty evaluation of hydrologic models, in which the key factors are the length of the data and the hydro-climate conditions in which they were collected. In this study, we investigated the effect of the calibration period selected on the predictive performance and uncertainty of a model. After classifying the inflows of the Hapcheon Dam from 1991 to 2019 into four hydro-climate conditions (dry, wet, normal, and mixed), a conceptual hydrologic partitioning model was calibrated using data from the same hydro-climate condition. Then, predictive performance and post-parameter statistics were analyzed during the verification period under various hydro-climate conditions. The results of the study were as follows: 1) Hydro-climate conditions during the calibration period have a significant effect on model performance and uncertainty, 2) calibration of a hydrologic model using data in dry hydro-climate conditions is most advantageous in securing model performance for arbitrary hydro-climate conditions, and 3) the dry calibration can lead to more reliable model results.

• 한국산학기술학회논문지
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• 제13권2호
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• pp.543-547
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• 2012

환경문제가 심각해지며, 환경교육에 대한 중요성이 강조되고 있으나 대학교육에서는 환경교육은 활발히 이루어지고 있지 않다. 대학에서의 환경교육은 환경공학 중심으로 이루어지고 있는데, 공학교육의 일환으로써의 환경교육은 환경공학에서의 학문분야뿐만 아닌 공과대학생 전체에 적합한 환경교육이 이루어져야만 더욱 큰 효과가 있을 것이다. 본 연구에서는 공과대학생을 위한 환경교육을 위하여 공학교육과 환경교육 전문가의 의견을 반영한 AHP 기법을 적용하여 공학도에게 적합한 환경교육 범주를 선정하였다. 공학도를 위한 환경교육범주를 선정한 후 공과대학생을 대상으로 환경교육을 실시하였으며 교육전후의 인식변화 설문조사를 통한 교육전후의 환경에 대한 인식변화를 통계적으로 검증하였고 추가적으로 친환경제품의 구매 데이터를 기반으로 통계적 분석 및 RFM 분석을 실시하여 환경교육의 실질적 성과분석을 수행하였다.

• 분석과학
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• 제30권4호
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• pp.194-204
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• 2017

Direct injection (DI) and solid phase extraction (SPE) methods for the simultaneous determination of pendimethalin (PDM) and dinoseb (DNS) in environmental water have been optimized using the ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method. The limits of quantification (LOQs) of PDM and DNS were $0.01{\mu}g/L$ using the DI method and $0.0001-0.0002{\mu}g/L$ using the SPE method. The precision by SPE UPLC-MS/MS was less than 11 % for intra-day and inter-day analyses. When the proposed SPE method was used to analyze two analytes in environmental water, PDM was detected in a concentration range of $0.0002-0.011{\mu}g/L$ in 31 samples of the 114 surface water samples, and DNS was detected in a concentration range of $0.0005-0.045{\mu}g/L$ in 17 samples of the 114 surface water samples analyzed. When the DI method was used to analyze target compounds in the same samples, the detected concentrations of the two analytes were within 21% in samples with concentrations above $0.01{\mu}g/L$. The DI UPLC-MS/MS method can thus be used for the routine monitoring of PDM and DNS in environmental water, and the SPE LC-MS/MS method can be used for the determination of the ultra-trace PDM and DNS residues in environmental water.

• 한국건설순환자원학회논문집
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• 제6권4호
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• pp.283-288
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• 2018

균열 자기치유 소재는 균열발생 시점부터 노출환경 조건에 따라 활성화되기 때문에 치유성능과 균열면의 노출환경 조건과의 관계 규명이 매우 중요하다. 이에 본 연구에서는 자기치유형 보수 모르타르의 치유성능에 노출환경 조건이 미치는 영향을 투수시험을 통하여 조사하였다. 균열시험체의 초기 균열폭에 대한 온도 및 습도의 영향을 조사한 결과, 양생온도의 영향은 미미하였으나, 건습변화에 의해서는 균열닫힘 현상이 발생하고 있음을 확인하였다. 그리고 자기치유형 보수 모르타르 시험체의 균열부위에서 생성된 치유물질은 calcite 광물로 확인되었다. 밀도가 높은 calcite 광물은 중력의 영향을 받아 침강하기 때문에, 균열면의 방향에 따라 치유성능에 다소 차이를 나타냈으며, 또한 대기노출 조건보다 습윤노출 조건에서 치유성능이 크게 향상되었다.