• Journal of Forest and Environmental Science
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• 제36권1호
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• pp.47-54
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• 2020

A "Scenic Site" is an official heritage category legally defined as a "scenic site of outstanding artistic value with excellent scenic views." However, the subjective interpretation of the term causes several problems. This study suggested a systematic, organized process of designating a listed area as a scenic site after careful and detailed quantitative and qualitative analysis. Indicators were identified for each of the two analyses, and then scored and weighted. Quantitative indicators were distributed within 5 points for each indicator. Water, which is a natural indicator, based on distance from river boundaries. Forest landscapes were assigned in consideration of forest physiognomy and age class. Land use was allocated in consideration of land cover type and, in case of development site, '-' score was assigned. Cultural heritage conservation area, which is historical and cultural indicator, was distributed by distance within a maximum of 500 meters. Visibility, an indicator of landscape value, was assigned according to the frequency of visibility. The weight of each indicator was calculated by considering the value of each item. The weight of distribution of cultural resources is relatively high, while other items were set the same. In case of land use, however, '-' score was given according to the grade. Qualitative indicators, on the other hand, were considered terrain, landscape zone, ownership, intellectual boundary, and land category. The applicability of the proposed process and method was examined by applying the existing methods and criteria used for designating scenic spots. Opinions of subject-matter experts were incorporated in the identification of the indicators and in the result review stage. In the future, it is necessary to apply this method while designating scenic sites so as to establish an objective, scientific designation process.

• 한국건설관리학회논문집
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• 제8권2호
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• pp.164-172
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• 2007

공동주택 개발사업의 타당성 검토는 분양성 및 수익성을 검토하는 부문과 법규, 환경 등의 정성적 부문이 있다. 이러한 타당성 분석업무를 합리적으로 진행하기 위하여 분석모형의 구축이 필요하고 또한 이를 보다 효율적이며 효과적으로 사용할 수 있도록 전산화 방법의 마련이 필요하다. 이를 위하여 본 연구에서는 기설정된 분석대상항목, 항목의 범주, 그 평가기준을 활용하여 타당성 분석모형의 전산화를 구축하고 이의 합리성을 입증하기 위하여 사례 프로젝트를 선정, 기존 방법으로 산출한 타당성 분석 결과와 함께 사례 프로젝트의 실제 분양결과를 모형의 전산화로 적용된 사례 프로젝트 분석결과와 비교 대비하도록 한다. 비교대비결과, 분석모형의 전산화에 의하여 산출된 결과 값이 실제 분양결과와 일정한 상관성이 있음을 보이고 있다. 즉, 사례 프로젝트별 수익성은 모형을 이용한 분석방법이 보다 실제와 접근하고 있음을 알 수 있다. 따라서, 공동주택 개발사업 타당성 분석모형의 전산화에 의한 타당성 분석작업은 보다 효율적이며 타당성 평가예측의 정확도를 높이는 툴(tool)로서 평가된다.

• 대한화학회지
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• 제8권2호
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• pp.47-56
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• 1964

展開한 페이퍼크로마토그램을 韓國 Triga-Mark-Ⅱ 硏究用 原子爐의 뉴마딕튜부施設(中性子線束; 1.5{\times}$10^{12}n/cm^2$, sec)을 利用하여 照射하여 본 結果 크로마토그램上에 展開된 스폿트(spot)를 定性的으로 確認할 수 있었다. 有機하로겐 化合物(크로로酸, 크로로에스테르, 沃化物, 及 弗化物)에 있어서 一般發色法으로서는 明確한 着色스폿트(spot)를 나타내지 못한 것에 있어서도, 이 方法으로서 展開된 스폿트를 明確히 區別할 수 있었다. 濾紙成分의 放射化에 依한 誤差를 減少시키기 爲하여 濾紙두께 補正 及 放射化度 補正을 硏究한 結果, 濾紙두께 補正 及 放射能崩壞 補正法을 究明하였으며, 이 方法으로 스폿트를 放射化하여 定性分析하는데 좋은 結果를 얻을 수 있었다. 有機하로겐化合物의 分析 及 確認에 있어서의 이 方法의 效用性에 關하여 論議하였다. 濾紙相으로는 正常相 及 逆相을 함께 使用하였다.

• 한국콘텐츠학회논문지
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• 제21권3호
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• pp.80-87
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• 2021

고령화가 전 세계적으로 급속히 진행되고 있다. 본 연구는 증가하는 노인을 대상으로 하는 디자인을 위해 인간 중심 디자인 철학을 바탕으로 노인의 필요와 욕망을 구체적으로 파악하기 위한 정성적 사용자 조사 방법을 모색하고 제안한다. 특히 실제 디자인 현장에서 노인이 사용하는 제품을 디자인 할 때 편리하고 손쉽게 사용할 수 있는 사용자 조사 방법을 제안하는 것을 목적으로 한다. 이를 위해 본 연구는 지팡이 디자인을 실제로 진행하면서 쉐도잉, 인터뷰, 직접 체험을 활용하여 그 사용과 함의를 살펴보았다. 쉐도잉은 AEIOU 프레임을 통해 정리하였으며, 인터뷰는 최근의 실버 세대의 경향을 반영하기 위해 의미성 항목을 특별히 추가하여 진행하였다. 직접 체험은 실내외 각각 4개의 사용자 행위 시나리오를 설정하여 디자이너들이 직접 체험해봄으로써 디자인 시사점을 도출하였다. 이 연구는 노인을 위한 디자인 수요가 다변화되고 증가하는 상황에서 중요하게 사용할 수 있는 사용자 조사 지침이 될 수 있을 것으로 기대한다.

• 한국지하수토양환경학회지:지하수토양환경
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• 제27권4호
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• pp.37-48
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• 2022

Accurate analysis of petroleum hydrocarbons in soil is an important prerequisite for proper source tracking of contamination. Identification of petroleum compounds is commonly carried out by peak pattern matching in gas chromatography. However, this method has several technical limitations, especially when the soils underwent biological, physical and chemical transformation. For instance, it is very difficult to distinguish jet fuel (JP-8) from kerosene because JP-8 is derivatized from secondary reaction between chemical agents (e.g. anti-oxidants, antifreezer and so on) and kerosene. In this study, an alternative method to separately analyze JP-8 and kerosene in the petroleum hydrocarbon contaminated soil was proposed. Qualitative analyses were performed for representative phenolic antioxidants [2,6-di-tert-butyl phenol (2,6-DTBP), 2,4-di-tert- butylphenol(2,4-DTBP), 2,6-di-tert-butyl-4-methyl phenol (2,6-DTBMP)] using a two dimensional gas chromatograph mass spectrometer (2D GC×GC-TOF-MS). This qualitative analysis of antioxidants in soil would be a useful complementary tool for the peak pattern matching method to identify JP-8 contamination in soil.

• 방사선산업학회지
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• 제17권4호
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• pp.385-390
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• 2023

The uterus, one of women's reproductive organs, is also closely related to women's health. Among them, hemorrhagic luteal cysts, one of the causes of pelvic pain that women often experience, were observed through CT and ultrasound, and the quality of images was evaluated through quantitative and qualitative evaluations. This study sought to find out whether the test method is more helpful to patients during CT and ultrasound. This study was conducted on 15 adolescent women and 15 adult women(21.31±3.45 average age). The equipment used for filming used EC3-10X (3~10 MHZ) and Philips Mx8000 iCT 256 among Endocavity Probes among Ecube Platinum. After setting a constant ROI on the cyst and the interface as a quantitative analysis method, SNR and CNR values were measured on a 5-point scale based on image quality, lesion clarity, image distortion, clarity of the interface, and motion artifacts (p<0.05). Independent t-test and Mann Whiteny U were performed, and the statistical program used was noted when SPSS (Version 22.0 for windows software package, Chicago, IL, USA) was statistically less than 0.05. Comparing the SNR and CNR values for this experiment, it can be seen that the SNR value was higher in the case of CT images(p<0.05). As a result of the qualitative evaluation, the quality of the image, the clarity of the lesion, the distortion of the image, the clarity of the interface, and the clarity of the boundary were measured on a 5-point scale based on the movement artifact. Comparing each score, CT images scored higher with a finer difference than ultrasound images(p<0.05). In conclusion, both test methods showed excellent results in finding the patient's lesions. However, in quantitative and qualitative evaluations, CT produced higher results in detecting lesions than ultrasound. However, for cyst tests that require continuous observation, ultrasonography, a non-invasive method that is advantageous for patients, will be clinically useful. Therefore, observing the patient's lesions by appropriately distributing these two test methods will provide optimal diagnostic information. These results will be useful for providing clinical basic data and educational materials to CT and US users in the future.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2000년도 가을 학술발표회논문집(I)
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• pp.409-412
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• 2000

Many researchers have been trying to evaluate the diffusion coefficient of chloride ion in concrete by using qualitative and quantitative electro-migration tests. Up to now, however, there has been no sufficient method to closely determine the diffusion coefficient of chloride ion through electro-migration test. In this paper, the diffusion coefficient of chloride ion in concrete was investigated through an electro-migration test, that is, AASHTO T 277, Dhir's method, Tang's method and Andrade's method. And the results of these test were compared with each other.

• 수산해양교육연구
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• 제27권6호
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• pp.1783-1796
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• 2015

The purpose of this study was to verify the formation of serious leisure experience for water sports mania using grounded theory method approach. Research participants were selected 6 water sports mania by reputational sampling method. Six participants who usually participated in water sports club were selected as research participants. The data for this study included participants' observation and in-depth interview. This study categorized the coding paradigm which was presented by using the findings derived from data as they were into casual condition, contextual element, central phenomenon, critical situation, mediative element, interaction, final result and core category to draw out the process of becoming a water sports mania and its significances. The results of were as follows. First, water sports mania recognized the environmentally safe pleasure and value. Second, water sports mania was in a race against myself. Third, water sports mania felt the social and environmental changes. Fourth, water sports mania was looking for alternative method. Fifth, water sports mania overcome physical limitations and liberation from fear of water. Lastly, water sports mania felt alive through the enthusiastic participation.

• 조명전기설비학회논문지
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• 제19권4호
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• pp.47-54
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• 2005

어둡고 한정된 지하공간의 이미지의 개선은 지하개발 성공여부에 중요한 결정요소가 되고 있다. 주거단지 지하주차장의 조명환경은 지금까지 양적 위주의 설계와 운영이 이루어졌으나 이제는 지하주차장 공간의 질적 향상이 필요한 때이다. 이를 위해서 우선 고려해야 할 두 가지는, 첫째로 주차장에서 주로 사용되는 광원에 대한 이해이며, 둘째는 균제도의 향상이다. 특히 겨울철 외기의 영향에 의한 주차장 실내의 심각한 조도저하와 균제도의 유지를 위한 방안이 마련되어야 한다. 따라서 조명기구의 간격, 배열에 대한 변화가 필요하며, 운용에 있어서는 시간에 따른 일률적인 기존의 제어방법에서 벗어나 이용패턴을 고려한 방식으로의 전환이 요구된다.

• 한국생산제조학회지
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• 제9권4호
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• pp.56-61
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• 2000

Cognition and control of grinding trouble occurring during the grinding process are classified into a quantitative knowledge which depends on experimental data and qualitative knowledge which relies on skilful engineers. Grinding operations include a large number of functional parameters, since there are several ways of coping with grinding trouble. One is the qualitative method which depends on empirical knowledge utilizing the skilful experts from the workship, the other is the quantitative method which utilizes the experimental data obtained by a sensor. But, they are all difficult to accomplish from the grinding trouble-shooting system. The reason is that grinding troubles are now easily controlled in the quantitative method, and therefore, trouble-shooting has mainly relied on the knowledge of skilful engineers. Thus, there is an important issue of how a grinding trouble-shooting system can be designed and what knowledge is utilized among the large amount of grinding trouble information. In this paper, basic strategy to develop the grinding database of rule-based model, which is strongly depended upon experience and intuition , is described.