• Title/Summary/Keyword: classification criteria

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토양측정망 운영목적에 따른 토양측정망 지점 선정 방안 연구 (Development of Monitoring Site Selection Criteria of the Korean Soil Quality Monitoring Network to Meet its Purposes)

  • 정승우
    • 한국지하수토양환경학회지:지하수토양환경
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    • 제18권2호
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    • pp.19-26
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    • 2013
  • This study developed the classification of National Soil Quality Monitoring Network (NSQM) and its site selection criteria to meet the recently established purposes of the NSQM. The NSQM were suggested by this study to classify into the six-purposes site groups from the current classification of land uses. The six purposes site groups were 1) intensive observation sites, 2) contaminant loading sites, 3) human activity sites, 4) background sites, 5) river soil sites, and 6) sites near the groundwater quality monitoring wells. Furthermore, this study developed the site selection criteria of NSQM utilizing the accumulated NSQM data, road traffic data, chemical emission data, census, soil information, and the literature related to soil quality variation due to contaminant loads. For selecting suitable sites for NSQM, this study used road traffic, chemical emission, the distance from the contaminant sources, and population information as specific criteria. The suggested site classification and criteria were appled for the current 100 NSQM sites for evaluation. Forty sites were met to the criteria suggested by this study, but sixty sites were not met to the criteria. However, some of the sixty sites also included the obscure sites that their addresses were not apparent to find them.

Applicability of Thoracolumbar Injury Classification and Severity Score to Criteria of Korean Health Insurance Review and Assessment Service in Treatment Decision of Thoracolumbar Injury

  • Choi, Hyuk Jin;Kim, Hwan Soo;Nam, Kyoung Hyup;Cho, Won Ho;Choi, Byung Kwan;Han, In Ho
    • Journal of Korean Neurosurgical Society
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    • 제57권3호
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    • pp.174-177
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    • 2015
  • Objective : For improving the drawbacks of previous thoracolumbar spine trauma classification, the Spine Trauma Study Group was developed new classification, Thoracolumbar Injury Classification and Severity Score (TLICS). The simplicity of this scoring system makes it useful clinical application. However, considering criteria of Korean Health Insurance Review and Assessment Service (HIRA), the usefulness of TLICS system is still controversial in the treatment decision of thoracolumbar spine injury. Methods : Total 100 patients, who admitted to our hospital due to acute traumatic thoracolumbar injury, were enrolled. In 45, surgical treatment was performed and surgical treatment was decided following the criteria of HIRA in all patients. With assessing of TLICS score and Denis's classification, the treatment guidelines of TLICS and Denis's classification were applied to the criteria of Korean HIRA. Results : According to the Denis's three-column spine system, numbers of patients with 2 or 3 column injuries were 94. Only 45 of 94 patients (47.9%) with middle column injury fulfilled the criteria of HIRA. According to TLICS system, operation required fractures (score>4) were 31 and all patients except one fulfilled the criteria of HIRA. Conservative treatment required fractures (score<4) were 52 and borderline fracture (score=4) were 17. Conclusion : The TLICS system is very useful system for decision of surgical indication in acute traumatic thoracolumbar injury. However, the decision of treatment in TLICS score 4 should be carefully considered. Furthermore, definite criteria of posterior ligamentous complex (PLC) injury may be necessary because the differentiation of PLC injury between TLICS score 2 and 3 is very difficult.

수문학적 토양군의 분류기준에 따른 SCS CN 및 유출변화특성에 관한 연구 (Study on SCS CN Estimation and Flood Flow Characteristics According to the Classification Criteria of Hydrologic Soil Groups)

  • 안승섭;박노삼;고수현;송인렬
    • 한국환경과학회지
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    • 제15권8호
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    • pp.775-784
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    • 2006
  • In this study, CN value was estimated by using detailed soil map and land cover characteristic against upper basin of Kumho watermark located on the upper basin of Kumho river and the hydrologic morphological characteristic factors were extracted from the basin by using the DEM document. Also the runoff analysis was conducted by the WMS model in order to study how the assumed CN value affects the runoff characteristic. First of all, as a result of studying the soil type in this study area, mostly D type soil was Identified by the application of the 1987 classification criteria. However, by that in 1995, B type soil and C type soil were distributed more widely in that area. When CN value was classified by the 1995 classification criteria, it was estimated lower than in 1987, as a result of comparing the estimated CNs by those standars. Also it was assumed that CN value was underestimated when the plan for Geum-ho river maintenance was drawn up. As a result of the analysis of runoff characteristic, the pattern of generation of the classification criteria of soil groups appeared to be similar, but in the case of the application of the classification criteria in 1995, the peak rate of runoff was found to be smaller on the whole than in the case of the application of the classification criteria in 1987. Also when the statistical data such as the prediction errors, the mean squared errors, the coefficient of determination and other data emerging from the analysis, was looked over in total, it seemed appropriate to apply the 1995 classification criteria when hydrological soil classification group was applied. As the result of this study, however, the difference of the result of the statistical dat was somewhat small. In future study, it is necessary to follow up evidence about soil application On many more watersheds and in heavy rain.

신 분류기준을 적용하기 위한 원전 해체폐기물량 및 처분 비용 산정에 대한 사전 연구 (A Pre-Study on the Estimation of NPP Decommissioning Radioactive Waste and Disposal costs for Applying New Classification Criteria)

  • 송종순;김영국;이상헌
    • 방사성폐기물학회지
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    • 제13권1호
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    • pp.45-53
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    • 2015
  • 1978년 고리 1호기의 상업 운전을 시작으로 현재 우리나라에서는 총 23기의 원전이 운영 중에 있다. 운영 중인 원전으로부터 방사성폐기물이 계속 발생되고 누적되어 갈 것이다. 또한 원전의 수명 연장과 신규 원전의 추가 건설 이외에도 제염해체 연구시설 등 각종 원자력 시설에서 발생하는 방사성폐기물은 꾸준히 증가하고 있다. 우리나라는 최근 IAEA에서 권고하는 신 분류기준을 적용한 신분류기준에 대해 원자력안전위원회 고시를 개정하였다. 중·저준위폐기물을 IAEA 신 분류기준을 적용하여 세분화한다면, 약 98%를 차지하는 저준위 및 극저준위 방사성폐기물과 규제면제폐기물을 효과적으로 처분 할 수 있게 된다. 본 논문에서는 신 분류기준을 적용한 해외 적용 사례와 처분 방안 현황을 분석하여 국내에 적용 가능한 최적의 합리적인 적용 방안 및 해체 방사성폐기물량을 산정해 보고자 한다.

Classification of honeydew and blossom honeys by principal component analysis of physicochemical parameters

  • Choi, Suk-Ho;Nam, Myoung Soo
    • 농업과학연구
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    • 제47권1호
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    • pp.67-81
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    • 2020
  • The physicochemical parameters of honey are used to determine the botanic origin of honey and to specify the composition criteria for honey in regulations and standards. The parameters of honeydew and blossom honeys from Korean beekeepers were determined to investigate whether they complied with the composition criteria for honey in the food code legislated by Korean authority and to establish the parameters which should be subjected to principal component analysis for improved differentiation of honeys. The fructose and glucose contents of the honeydew honey did not comply with the composition criteria. The ash content of the honey was closely correlated with CIE a* and CIE L* The principal component analysis of fructose to glucose ratio, CIE a*, CIE L*, ash content, free acidity, and fructose and glucose contents enabled classification of honeydew, chestnut, multifloral, and acacia honeys. Additional advantage of the principal component analysis (PCA) is that the physicochemical parameters, such as fructose to glucose ratio (F/G) and color, can be determined using the analytical instruments for composition criteria and quality control of honey. This study suggested that composition criteria for honeydew honey should be established in the food code in accordance with international standards. The principal component analysis reported in this study resulted in improved classification of the honeys from Korean beekeepers.

산업안전보건법상 관리대상 유해물질 선정기준 마련에 관한 연구 (A study on the establishment of the criteria for selection of Hazardous substances requiring management in Occupational Safety and Health Act)

  • 박은우;박준호;이권섭;홍문기;안병준;이은정
    • 한국산업보건학회지
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    • 제24권4호
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    • pp.425-435
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    • 2014
  • Objectives: This study was performed in order to establish reliable and relative selection criteria for hazardous substances requiring management(HSRM) in the Occupational Safety and Health Act in Korea. Methods: To determine the relative criteria and weight of evidence for HSRM, we analyzed the difference between the selection method of priority substances in studies by KOSHA(Korea Occupational Safety and Health Agency) and the European Union Risk Ranking Method(EURAM). In addition, 597 hazardous substances with exposure limit valueswereanalyzed and the posted health hazards classification by MOEL(Ministry of Employee and Labor), MOE(Ministry of Environment), and EU CLP(Classification, Labelling and Packaging regulation) were compared based on GHS(Globally Harmonized System of classification and labelling of chemicals) criteria. The existing HSRM(167 substances) were evaluated for suitability by the proposed criteria in this study. Results: As a result of this study, the criteria and procedures for selecting HSRM in the Occupational Safety and Health Act were arranged utilizing GHS health hazard classification results, occupational disease cases and domestic use situations. Conclusions: The applicability of the proposed criteria was proved via the evaluation of existing HSRM(167 substances). Most HSRM (161 substances) were found to correspond to a significant health effect or substantial health effect. The question of whether to include the six substances that have been found to have general health effects as HSRM would be require further research.

식물 이름에 대한 초등학생들의 인지도와 그들이 사용하는 식물 분류 기준 (Elementary School Students' Perception of the Name of Plants and Their Criteria Used in Classifying Plants)

  • 김상영;송남희
    • 한국초등과학교육학회지:초등과학교육
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    • 제26권1호
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    • pp.41-48
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    • 2007
  • The purpose of this study is to examine how many plant names elementary school children how, and what kind of criteria they use for classifying these plants. The sample involved 926 students from the 2nd, the 4th, and the 6th grades dwelling in one urban, three suburban, and six rural areas. Their level of perception on the name of plants increased in correlation to the elevation of the grade level. However, different patterns of increases were shown depending on the local environments in which they live. The most well-known plant names for students were the rose of Sharon, the rose and the pine tree. The students mostly classified the plants using the following criteria such as 'with or without flower' and 'edible or inedible' regardless as to whether they had prior loaming experience of plant classification. 65.3% of the 6th graders correctly grouped 5 kinds of plants into the flowering and the non-flowering plant categories at the 1st level of classification. However, only 17.9% and 7.7% correctly divided the flowering and the non-flowering plants into two subgroups at the 2nd level of classification respectively. Therefore, their abilities in plant classification was shown overall to be poor. The students living in suburban areas appeared to be harmonized with both the natural and urbanized surroundings and classified the plants more scientifically than those from the urban or rural areas were able to. This suggests that the conception of plant classification by children is affected by the environment in which they live. If children have more opportunities to observe plants in surroundings such as their classrooms and school gardens, it will help them to form the relevant scientific concepts as well as to correct any alternative conceptions related to classification.

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직접 간호활동 분석을 기초로 한 환자분류체계의 기준 설정을 위한 연구 (A Study for Formulating Criteria of Patient Classification System Based OR the Analysis of Direct Nursing Activities)

  • 김조자;박지원
    • 대한간호학회지
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    • 제17권1호
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    • pp.9-23
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    • 1987
  • Nursing service, as the largest user of labor resources, has become concerned about appropriate allocation of staffing resources. Therefore, this project was designed to measure quantitatively the direct nursing care provided to patients and to develop a new patient classification system based on the direct nursing care activities. The initial step in the development of the classification instrument was to identify the content of direct nursing activities. The frequency with which these activities were carried out, the total time spent in carrying them out and the average time for one performance of each of the nursing activities was calculated. The next step was to select the items for the classification instrument taking into account these direct nursing activities. A list of 40 items was prepared. These items were then classified into 8 major categories: personal hygiene, moving & exercise, nutrition & elimination, observation, medication, treatment, collecting specimens and other care activities for severity ill patients. Each item was assigned a value unit based on the average time required by the nursing staff to complete the specific item. The third step was to determine the practicality of the items and value units, so an attempt was made to establish content validity for these items and units by obtaing a consensus from 8 head nurses, representing eight different departments. The 4th step was to conducted a pilot study to establish the score range for the classification boundaries. For this purpose an instrument was designed using the list of items and value units and a prepared classification criteria as a guideline to validate the patient classification. A judgment group consisting of 52 supervisory nurses and head nurses were asked to select the proper patient to fit each classification criteria and to fill out the instrument for each patient. The total value unit and the frequency for each classification group was calculated. According to the frequency distribution, the score range for the classification group was determined as follows : 0~15 for groupI, 16~30 for group II, 31~50 for group III, and above 51 for group IV. Finally a patient classification form was developed.

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도시경관계획을 위한 경관유형 분류기준에 관한 고찰 (A Study on the Classification Criteria of Landscape Type for Urban Landscape Planning)

  • 방재성;양병이
    • 한국조경학회지
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    • 제37권2호
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    • pp.78-89
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    • 2009
  • 본 연구의 목적은 도시경관계획의 효율적 실행수단 확보 차원에서 도시경관 유형화를 위한 기초자료를 구축하는데 있다. 이를 위해 국내 주요 학술지 논문과 경관계획 보고서 중 경관유형과 분류기준을 구체적으로 제시한 기존 연구를 분석하고, 이를 토대로 현행 도시계획의 근간이 되는 용도지역지구제에서 활용 가능한 도시경관 유형화 분류기준을 제시하였다. 연구결과는 다음과 같다. 첫째, 분석과 평가 관점의 경관유형화 방식은 생태학적 접근과 형식미학적 접근에 기반하여 경관요소들의 특성을 분석하며 이를 토대로 경관을 유형화하는 것이 큰 특징이라고 할 수 있다. 둘째, 우리나라 경관계획에서 보여지는 경관유형은 분석을 위한 경관유형과 계획을 위한 경관유형의 혼용에 의해 논리적인 경관유형 분류체계가 확립되지 않았으며, 이로 인해 경관관리대상에 대한 명확한 규정이 없다는 것이다. 이는 결국 경관관리를 위한 경관제어요소와 관리방안에 대한 구체적인 지침 부족으로 연결되고 있다. 본 연구에서는 경관계획 과정상의 효용성을 고려하여 활용 가능한 경관유형 분류기준을 크게 경관구성의 1차적 기준과 2차적 기준으로 제시하였다. 1차적 기준은 지형과 용도지역지구, 경관자원의 성격, 경관요소가 있고 2차적 기준은 경관계획 대상지 외부에서 경관을 구성하는 조망점, 조망점과 경관대상과의 거리, 도시공간의 형태적 특성 등으로 구분할 수 있다. 이를 이용한 도시경관 유형화는 도시 전반에 대한 경관관리가 가능하게 할 것이며, 향후 도시경관유형을 토대로 한 용도지역지구의 운용에 있어 기초자료로 활용될 수 있으리라 판단된다.