• 대한공간정보학회지
• /
• 제13권3호
• /
• pp.15-24
• /
• 2005

국토의 난개발을 방지하기 위해 도입된 토지적성평가는 공간 및 물리적인 특성이 서로 다른 육지와 도서지역의 평가기준을 일률적으로 적용하는 데 있어서 많은 문제점을 내포하고 있다. 본 연구에서는 공간적 지리적 지역적 특성이 뚜렷이 다른 도서지역의 효율적 토지적성평가방법의 연구를 위해서 생활권역을 고려한 평가단위와 이를 기반으로 한 평가지표 개발 등에 관하여 연구였다. 평가권역을 고려한 평가단위에서는 중생활권의 평가가 가장 양호하였으며 거리분석에 있어서는 해양을 고려한 거리 분석방법을 제안하여 도서간의 접근성을 고려한 평가방법을 제시하였다.

• 한국지하수토양환경학회지:지하수토양환경
• /
• 제28권6호
• /
• pp.33-44
• /
• 2023

A risk assessment on the heavy metals including arsenic (As), cupper (Cu), lead (Pb), and zinc (Zn) was investigated by setting exposure routes in agricultural fields. Moreover, the factors requiring improvement in risk assessment were also discussed through a review of the dermal absorption slope factor (SF_abs) and total amount of suspended particles (TSP) in the current risk assessment guidelines. Assessment results show that the total cancer risk (TCR) of As through crop and soil ingestion was 1.51E-03 in adults and 6.37E-4 in children, which indicated a carcinogenic risk (exceeding 1E-05). On the other side, the harzard index (HI) was 3.37 in adults and 1.41 in children, which was evaluated as having a non-carcinogenic risk (>1). The carcinogenic purification targets for As were calculated to be 6.84 mg/kg in adults and 6.86 mg/kg in children, while the non-carcinogenic purification targets were calculated to be 13.43 mg/kg for adults and 22.54 mg/kg for children. When applying SF_abs 61 of the current guidelines, it appears that there is a carcinogenic risk even though the As exposure concentration is below the area of concern 1 standard (25 mg/kg), which suggestes that additional research on this factor is required for the risk assessment. In order to apply the measured suspended particle concentration to risk assessment, TSP should be derived from PM10 using an appropriate correlation equation. As a result, it is suggested to improve the risk assessment guidelines so that the mesured PM10 value measured in the field can be used directly.

• 농촌지도와개발
• /
• 제23권4호
• /
• pp.375-385
• /
• 2016

Since the discussion on solving some problems in modern socity began in the late 1990s, the interest in students' character education has increased. This study aims to identify the factors influencing educational needs assessment for character education in Korea. A self-administered survey was obtained from 318 students in a university. Three factors extracted from factor analysis were individual, interpersonal, social character factor. Results showed that the determinants influencing character educations are academic achievement and volunteer activities for individuals character, academic achievement and school activities in campus for interpersonal and social character educational factor. The findings should be of interest to practitioners to develop education programs for students.

• 통상정보연구
• /
• 제10권4호
• /
• pp.203-219
• /
• 2008

This study shows the following results. First, the assessment items of the whole exhibition operation, workforce, counselor's ability, facility and environment were important analysis factors for exhibition recognition, quality of human operation and quality of exhibition facility and environment. Second, exhibition recognition was found to be the most significant factor that influenced exhibitor's cognitive achievement, exhibition employee operation and exhibition facility. Third, exhibitors' satisfaction simultaneously increased as exhibition recognition and employee operation quality were raised. However, exhibition facility didn't strongly influence exhibitors' satisfaction. Fourth, high exhibition recognition, employee operation and exhibition facility resulted in high cognitive achievement and exhibitor's loyalty. Fifth, exhibition recognition is a highly influential factor to mediate exhibitor's cognitive achievement and exhibitors' loyalty. It implied that exhibitors' cognitive achievement and satisfaction were significantly related to the exhibition quality factor. Moreover, it indicated the effective and efficient operational method to strengthen promotional strategy, enhance the quality of employee operation, exhibition facility and environment. Thus, the results suggest a new method to evaluate exhibitor's satisfaction in the exhibition industry.

• 환경영향평가
• /
• 제14권6호
• /
• pp.443-453
• /
• 2005

For the purpose of the comparative environmental estimation of the incineration processes for domestic wastes, environmental impacts for several incineration processes for one ton of domestic wastes have been estimated by employing life cycle assessment as the environmental impact assessment method. The scheme of minimum production of environmental pollutants has been considered for three different incineration processes. The evaluation for latent influence on environment was carried out by using CML(Center of Environmental Science) method which was developed by University of Leyden in Netherlands based on the equivalency factor suggested by Korea Accreditation Board. The result of life cycle assessment has showed that the total cost analysis according to the amount of incinerating waste was dependent on the operating conditions of incineration process. In addition, the annual running cost for the incineration of one ton of wastes was estimated to be negatively dependent on the amount of wastes. The degree of environmental pollution was mainly due to the kinds of the wastes rather than by the amount of wastes.

• 한국물환경학회지
• /
• 제25권4호
• /
• pp.494-501
• /
• 2009

Probabilistic Ecological risk assessment (PERA) is extensive approach to qualify and quantify risk on the multi species based on species sensitivity distribution (SSD). As a while, deterministic ecological risk assessment (DERA) considers the comparison of predicted no-effect concentration (PNEC) and predicted exposure concentration (PEC). DERA is used to determine if there is potential risk or no risk, and it doesn't consider the nature variability and the species sensitivity. But PERA can be more realistic and reasonable approach to estimate likelihood or risk. In this study, we compared PERA used in developed countries, and proposed PERA applicable for the Korean water environment. Taxonomic groups were classified as "class" level including Actinopterygill, Branchiopoda, Chlorophyceae, Maxillapoda, Insects, Bivalvia, Gastropoda, Secernentea, Polychaeta, Monocotyldoneae, and Chanophyceae in this study. Statistical extrapolation method (SEM), statistical extrapolation method $_{acutechronicratio}$ ($SEM_{ACR}$) and assessment factor method (AFM) were used to calculate the ecological protective concentration based on qualitative and quantitative levels of taxonomic toxicity data. This study would be useful to establish the PERA for the protection of aquatic ecosystem in Korea.

• 재활간호학회지
• /
• 제20권1호
• /
• pp.1-11
• /
• 2017

Purpose: This was a methodological study to develop a valid and reliable health assessment tool for middle-aged adults in long-term care settings (HATMAL). Methods: At the first stage of this study, initial 56-items HATMAL were derived via literature review, survey for needs assessment, and focus group interviews with experts. At the second stage, 54 items HATMAL were finalized via content validity test with 5 experts and a pilot study with 30 nurses. At the third stage, validity and reliability tests were conducted with 100 middle-aged patients in a long-term care hospital. Data were analyzed by factor analysis using SPSS 18.0 program. Results: Exploratory factor analysis resulted in 3 factors; functional assessment, symptom assessment, and comfort assessment. These 3 factors explained 83.8% of total variance and construct validity was confirmed. Test-retest reliability was .67 for appetite changes, .76 for regulating for behavior problems, and 1.0 for other items. Conclusion: Results indicate that HATMAL is valid and reliable to assess the health for middle-aged patients in long-term care settings. This study would contribute to provide more effective personalized treatment and care for middle-aged patients in long-term care settings considering their own characteristics.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
• /
• 제26권3호
• /
• pp.226-235
• /
• 2015

Objectives : The purpose of this study was to examine the factor structure of the Adolescent Personality Assessment Inventory (PAI-A) in a standardized adolescent sample using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). Methods : For this purpose, three models about factor structure of the PAI-A were explored with EFA in 490 adolescents and then were evaluated with CFA in 268 young offenders. Results : The results showed that the five factor model was considered to be most appropriate for factor structures of the PAI-A in EFA. However, none of the factor models were appropriate for the factor structures of the PAI-A in CFA. Conclusion : These findings suggest that the "five factor model" is thought to explain the PAI-A the best, but further studies are needed.

• 근관절건강학회지
• /
• 제5권2호
• /
• pp.206-221
• /
• 1998

The purpose of this study was to validate translated Multidimensional Assessment of Fatigue(MAF) scale. The scale is a 16-item scale that measures four dimensions of fatigue : severity, distress, impact, timing. Fourteen items are numerical rating scales and 2 items have multiple choice responses. Data were collected from the 137 patients with rheumatoid arthritis after content validation. Criterion validity was tested by correlation coefficient with Piper Fatigue Scale, which resulted in 0.7573(p<.0000). Construct validity was tested by item analysis and factor analysis. Corrected item-total correlation coefficients were 0.63-0.88. And factor analysis showed 2 factors : fatigue degree factor and fatigue impact factor. These two factors explained 73.5% of total variance. Reliability of internal consistency was 0.96 in Cronbach's alpha. Further validation study is necessary in each factor in other settings with other subjects.

• Nuclear Engineering and Technology
• /
• 제53권8호
• /
• pp.2600-2609
• /
• 2021

Low cycle fatigue behaviors of SA508-3 low-alloy steel were investigated in room-temperature air, high-temperature air and in light water reactor (LWR) water environments. The fatigue mean curve and design curve for the low-alloy steel are developed based on the fatigue data in room-temperature and high-temperature air. The environmental fatigue model for low-alloy steel is developed by the environmental fatigue correction factor (F_en) methodology based on the fatigue data in LWR water environments with the consideration of effects of strain rate, temperature, and dissolved oxygen concentration on the fatigue life.