• 한국해양환경ㆍ에너지학회지
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• 제18권2호
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• pp.123-132
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• 2015

본 연구에서는 10 MW급 부유식 파력-해상풍력 연계형 발전시스템에 설치되는 다수 풍력발전기의 배치 설계를 수행하고, 전산유체역학 해석기법을 통해 다수 풍력발전기의 성능을 평가하였다. 날개요소운동량이론을 기반으로 한 풍력발전 단지 설계용 프로그램 WindPRO를 이용하여, 발전시스템의 적지 환경 풍황조건에 대해 최대에너지를 생산할 수 있는 배치 설계를 도출하였고, ANSYS CFX를 이용하여 다수 풍력발전기간의 후류 간섭영향을 발전기 성능 측면에서 검토하여, 근거리 다수 풍력발전기간의 후류 간섭이 시스템에 미치는 영향을 평가하였다.

• 한국환경교육학회지:환경교육
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• 제21권1호
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• pp.16-30
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• 2008

This study was aimed at finding what effects pro-con discussion classes have on students' environmental decisions and set a series of research questions as follows. First, in a small group discussion, how a student's environmental decision is affected by opinions of other students in the same group. Second, what would be the relations between a students' personal factors including gender, environmental knowledge, attitude, and behavior and their decisions. A decisional experiment was applied to 185 students consisting of 2 girl classes and 4 boy classes of K highschool located in Kongju City, Chungnam. These students were taking 'Ecology and Environment' as one of the few general selective subjects once a week. Decision issue introduced to the experiment was regarding of constructing a wind power station on Baekdu Mountains which is protected by the law. This issue can be characterized as not conflict between conservation and development but conflict between two different types of environment friendly approaches that make students experience more difficult while making a decision. The results of this study an be summarized as follows. First, after taking the class introducing environmental issues and having a debate other students on the issue both within a small group or all classmates together, just less then 30% of the students changed their selections. Second, students were found to be affected by other students' opinion while making his or her own decision. Third, no relationship was found to be statistically considerable between students decisions and their personal factors except of their courses, liberal or science.

• The Korean Journal of Physiology and Pharmacology
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• 제19권3호
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• pp.291-297
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• 2015

An oral environment is constantly exposed to environmental factors and microorganisms. The periodontal ligament (PDL) fibroblasts within this environment are subject to bacterial infection and allergic reaction. However, how these condition affect PDL fibroblasts has yet to be elucidated. PDL fibroblasts were isolated from healthy donors. We examined using reverse transcription-polymerase chain reaction and measuring the intracellular $Ca^{2+}$ concentration ($[Ca^{2+}]_i$). This study investigated the receptors activated by exogenous bacterial pathogens (Lipopolysaccharide and peptidoglycan) and allergens (German cockroach extract and house dust mite) as well as these pathogenic mediators-induced effects on the intracellular $Ca^{2+}$ signaling in human PDL fibroblasts. Moreover, we evaluated the expression of pro-inflammatory cytokines (interleukin (IL)-$1{\beta}$, IL-6, and IL-8) and bone remodeling mediators (receptor activator of NF-${\kappa}B$ ligand and osteoprotegerin) and intracellular $Ca^{2+}$-involved effect. Bacterial pathogens and allergic mediators induced increased expression of pro-inflammatory cytokines, and these results are dependent on intracellular $Ca^{2+}$. However, bacterial pathogens and allergic mediators did not lead to increased expression of bone remodeling mediators, except lipopolysaccharide-induced effect on receptor activator of NF-${\kappa}B$ ligand expression. These experiments provide evidence that a pathogens and allergens-induced increase in $[Ca^{2+}]_i$ affects the inflammatory response in human PDL fibroblasts.

• 해양환경안전학회지
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• 제29권7호
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• pp.879-886
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• 2023

해양경찰공무원은 직무를 수행하면서 조직의 목표 뿐만 아니라 개인의 삶과 연결되어 있다. 이에 해양경찰공무원의 직업 소명의식과 직무열의는 중요한 요소이다. 따라서 이 연구는 해양경찰공무원의 발전에 대한 직업소명의식과 직무열의의 관계를 검증하는데 주목적이 있다. 연구의 진행을 위해 해양경찰공무원 136명을 대상으로 연구를 진행하였다. 직업소명의식의 하위변인은 초월적 부름, 목적·의미 존재, 친사회적 지향 동기로 구성되었으며, 직무열의는 활력, 몰두, 헌신으로 구성하였다. 검증 결과 해양경찰공무원이 인식하는 직업소명의식 하위변인인 초월적 부름과 목적·의미 존재는 직무열의의 하위변인 활력, 헌신, 몰두에 정(+)의 영향을 미치는 것으로 나타났다. 그러나 직업소명의식 하위변인 친사회적 지향 동기는 직무열의 하위변인인 활력, 헌신, 몰두에는 영향을 미치지 않는 것으로 나타났다. 분석 결과를 통해 해양경찰 조직의 실무적 시사점을 제안하였다.

• 한국환경생태학회지
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• 제14권2호
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• pp.139-153
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• 2000

자연공원시설의 정의와 친환경성의 개념을 정립하고 자연공원내 시설과 관련된 기본법인 자연공원법과 기타공원시설물의 관련법규들 중에서 용도지구 내 시설설치 허용기준과 공원시설의 정의 시설물의 종류 및 시설물의 설치.관리 등 관련 법제도를 친환경성 측면에서 검토하여으며 미국, 일본 및 대만 등에서의 친환경적인 자연공원시설물 관련법규를 살펴보고 국내.외 법제를 비교분석하였다 친환경적 측면에서의 자연공원시설의 설치 및 관리상의 문제점을 종합해 보고 이에 따른 친환경성을 고려한 자연공원시설의 법.제도와 관련하여 공원 시설종류의 일부 삭제 및 추가와 시설기능 변경안이 포함된 공원시설물의 친환경성 증진을 위한 현행 자연공원 법령(법.시행령.시행규칙)의 개정안과 자연보존지구, 자연환경지구, 취락지구 등의 용도지구 내에서의 허용행위기준과 집단시설지구 내 녹지기준의 개정안을 제시하고 시행규칙상 시설물의 신설을 권고하였다.

• 대한가정학회지
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• 제42권8호
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• pp.15-32
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• 2004

The purpose of this study is to develop an environmental education program for environmentally friendly consumer behaviors by analyzing factors influencing the attitude-behavior relationship, and examining consumer information needs about environmental problems. Environmental information demanded by consumers could be classified into five main areas; 'use and disposal of environmentally friendly resources', 'purchase of environmentally friendly goods', 'environmental problems and consumer sovereignty', 'environmental laws and regulations' and 'environmental values and consumer's civil consciousness'. Based on the study results, an environmental education program for consumers was developed which consisted of two main parts, basis and practice. The former aimed to strengthen consumer consciousness about environmental problems and the latter, to make regular environmentally friendly consumer behaviors. The two parts were correlated. Thus strengthening environment-related consumer consciousness by learning the part of basis could promote of environmentally friendly consumer behaviors.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 1999년도 추계학술대회 논문집
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• pp.105-110
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• 1999

This research has been focussed on the evaluation of the driving speed in a graphic environment. Through the investigation of some electronic driving games, two factors related to perceived speed have been extracted. The two factors are distance and density of objects. Experiments have been executed for the two factors. The experiment is needed to acquire a relationship between speed perception and each factor. For experiments involving more than ten subjects, graphical representation of a vehicle and its surrounding environment has been obtained using three-dimensional tools, Pro/ENGINEER and dVISE. Based on the experimental results, relationships are formulated and plotted.

• 교육시설 논문지
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• 제19권2호
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• pp.59-66
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• 2012

Community design education has covered the worldview dimension of the collaborative courses for sustainability draws on the architectural expertise developed in a network of community projects and therefore case studies of design education by the collaborative project-based learning in terms of participants, students, teachers and architects, such as 'Learning By Design' for the K-12 comprehensive program in Massachusetts addresses how a local society can make its community sustainable by both design and education. To understand that community design and education can provide professional development in all levels of skills and knowledge across disciplines and opportunities for collaborative learning and problem-solving, this research consists of case studies of the community design education including social systems that assist in organizing the local educational program as well as promoting the programs with public awareness of the community. It covers the UNESCO-UIA agenda of the community design and education that is to enhance the physical environment relating to human interaction by developing innovative alternatives of existing community and contributing voluntarily to neighborhoods through design. As the community design collaborative of design professionals and users is a structural approach to assess design quality, the cases address how to set up the architectural program in order to share pro bono design service and provide high-quality design resources available for sustainable environment.

• KIEAE Journal
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• 제8권6호
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• pp.21-26
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• 2008

According to the tendency of energy efficiency and environment-friendly chracteristics, demend of High-efficiency lighting using LED(Light Emitting Diode)are being increased actively and applied in various fields. However, In order to adequate application of LED light sources, it is necessary to lighting environment and luminous characteristics of LED light sources. This Study aims to characterize the work-plane lighting environment by LED light sources comparing with fluorescent light sources which are widely used. For the sake of this study, a fluorescent light source and 5 LED light sources were introduced and luminance and correlated color temperature were measured to evaluate luminance contrast. The experimental model is Mock-up which is $4.9m{\times}7.2m$ with a height of 2.9m. The test room was set up partition and desks. Luminance and correlated color temperature were measured work-plane on the desk which was set up local lighting by the Radiant Imaging ProMetric 1400. The optical characteristics data of LED can give a lot of advantages to design LED lighting appliances. Hereafter, the object of research will be conducted to evaluate effects of LED light sources on working performance, survey of visual performance, preference and physiology of subjects.

• 한국토양비료학회지
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• 제47권5호
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• pp.319-323
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• 2014

This study investigates the prediction of soil chemical properties (organic matter (OM), pH, Ca, Mg, K, Na, total acidity, cation exchange capacity (CEC)) on 688 Korean soil samples using the visible-near infrared reflectance (VIS-NIR) spectroscopy. Reflectance from the visible to near-infrared spectrum (350 to 2500 nm) was acquired using the ASD Field Spec Pro. A total of 688 soil samples from 168 soil profiles were collected from 2009 to 2011. The spectra were resampled to 10 nm spacing and converted to the 1st derivative of absorbance (log (1/R)), which was used for predicting soil chemical properties. Principal components analysis (PCA), partial least squares regression (PLSR) and regression rules model (Cubist) were applied to predict soil chemical properties. The regression rules model (Cubist) showed the best results among these, with lower error on the calibration data. For quantitatively determining OM, total acidity, CEC, a VIS-NIR spectroscopy could be used as a routine method if the estimation quality is more improved.