• Journal of the Korean Association of Geographic Information Studies
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• v.23 no.3
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• pp.100-119
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• 2020

During recent years, the heat environment and particulate matter (PM₁₀) have become serious environmental problems, as increases in heat waves due to rising global temperature interact with weakening atmospheric wind speeds. There exist urban heat islands and urban pollution islands with higher temperatures and air pollution concentrations than other areas. However, few studies have examined these issues together because of a lack of micro-scale data, which can be constructed from spatial data. Today, with the help of satellite images and big data collected by private telecommunication companies, detailed spatial distribution analyses are possible. Therefore, this study aimed to examine the spatial distribution patterns of urban heat islands and urban pollution islands within Busan Metropolitan City and to compare the distributions of the two phenomena. In this study, the land surface temperature of Landsat 8 satellite images, air temperature and particulate matter concentration data derived from a private automated meteorological observation system were gridded in 30m × 30m units, and spatial analysis was performed. Analysis showed that simultaneous zones of urban heat islands and urban pollution islands included some vulnerable residential areas and industrial areas. The political migration areas such as Seo-dong and Bansong-dong, representative vulnerable residential areas in Busan, were included in the co-occurring areas. The areas have a high density of buildings and poor ventilation, most of whose residents are vulnerable to heat waves and air pollution; thus, these areas must be considered first when establishing related policies. In the industrial areas included in the co-occurring areas, concrete or asphalt concrete-based impervious surfaces accounted for an absolute majority, and not only was the proportion of vegetation insufficient, there was also considerable vehicular traffic. A hot-spot analysis examining the reliability of the analysis confirmed that more than 99.96% of the regions corresponded to hot-spot areas at a 99% confidence level.

• Journal of agricultural medicine and community health
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• v.30 no.3
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• pp.279-292
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• 2005

Objectives: The purpose of this study is to analyze agricultural accident and disease using statistical data and materials about National Survey for Health & Nutrition in 2001 and to provide fundamental materials for studies about farmers' health and safety, decision of priority about research and policy. Results: Diagnosed chronic disease prevalence is 72.4% in farmer/fisher group, 49.8% in non farmer/fisher group. The chronic disease prevalence of musculoskeletal disease, circulatory disease, and gastroenteric disease is 46.5%, 18.2%, and 17.9% in farmer/fisher group respectively. The prevalence of musculoskeletal disease in farmer/fisher is 2.4 times higher than non farmer/fisher. This result shows that it need to evaluation for risk factors of musculoskeletal disease preferentially. Lifetime accident/poisoning rate is 18.2% In farmer/fisher group and 13.3% in non farmer/fisher group. The types of accidents were fracture>sprain>contusion and the reasons of accidents were traffic accident>falling/sliding. Conclusions: "Bad or very bad" response of farmer/fisher is almost 2 times higher than non farmer/fisher group. The rate of smoking and no exercising in farmer/fisher group is higher than non farmer/fisher group.

• Journal of Korean Society of Transportation
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• v.20 no.4
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• pp.83-93
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• 2002

To improve the performance of estimation, the research that uses additional information addition to traffic count and target OD with additional survey cost have been studied. The purpose of this paper is to improve the performance of OD estimation by reducing the feasible solutions with cost-efficiently additional information addition to traffic counts and target OD. For this purpose, we Propose the OD estimation method with sample link use proportion as additional information. That is, we obtain the relationship between OD trip and link flow from sample link use proportion that is high reliable information with roadside survey, not from the traffic assignment of target OD. Therefore, this paper proposes OD estimation algorithm in which the conservation of link flow rule under the path-based non-equilibrium traffic assignment concept. Numerical result with test network shows that it is possible to improve the performance of OD estimation where the precision of additional data is low, since sample link use Proportion represented the information showing the relationship between OD trip and link flow. And this method shows the robust performance of estimation where traffic count or OD trip be changed, since this method did not largely affected by the error of target OD and the one of traffic count. In addition to, we also propose that we must set the level of data precision by considering the level of other information precision, because "precision problem between information" is generated when we use additional information like sample link use proportion etc. And we Propose that the method using traffic count as basic information must obtain the link flow to certain level in order to high the applicability of additional information. Finally, we propose that additional information on link have a optimal counting location problem. Expecially by Precision of information side it is possible that optimal survey location problem of sample link use proportion have a much impact on the performance of OD estimation rather than optimal counting location problem of link flow.

• Korean Journal of Occupational Health Nursing
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• v.2
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• pp.26-39
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• 1992

본 연구는 보건관리대행기관에 근무하는 산업간호사들의 보건관리업무실태 및 근무만족도와 이들간의 관계를 파악함으로써, 산업간호업무향상 및 효율적인 산업보건관리를 위한 기초자료로 제시하고자 시도되었다. 조사대상은 38개 보건관리대행기관중 24개 기관에 근무하는 산업간호사 118명중 97명을 대상으로 하였다. 연구기간은 '92년 5월부터 6월까지 설문조사를 실시하였으며 그중 89명이 설문에 응답하여 이를 분석 대상으로 하였다. 연구결과는 다음과 같다. 첫째, 보건관리대행기관의 간호사는 산업간호사의 일반적 특성과 비교해볼 때 기존 산업간호사와 유사하였다. 그러나 법정휴가를 받는다는 간호사가 59.1%로 더 낮았다. 둘째, 보건관리대행기관 산업간호사의 담당사업장수는 법적으로 30개 사업장, 2,000명의 근로자를 담당하도록 되어있는데 조사결과 법적기준인 보건관리사업장의 수를 담당하는 간호사는 57.1%를 차지하였고, 담당 근로자 수로 볼때는 2,000명이하가 29.8%를 차지하여 많은 산업간호사가 법적인 기준을 초과하여 산업보건관리를 대행하고 있는 것으로 나타났다. 셋째, 보건관리대행의 방문방법으로 교통편은 대행 기관차량을 이용하며, 간호사 혼자 산업장을 방문하는 것이 대부분으로 나타났고, 방문횟수는 100인미만이 월1회, 100인이상이 월2회로 규정된 것과 비교해보면 규정을 따르는 곳이 100인 미만의 경우 97.4%, 100인이상의 경우 86.4%였다. 또한 의사나 위생사는 방문을 안하거나 년1-5회 방문하는 것으로 나타나 보건관리대행의 주제공자는 간호사인 것으로 냐타났다. 또한 사업장 방문시 업무수행장소는 휴게실이나 사무실이 87.5%, 현장이나 수위실에서 하는 곳이 70.5%나 되어 뚜렷이 업무를 수행할 장소가 마련되지 않은 실정을 나타냈다. 네째, 보건관리대행에 근무하는 산업간호사의 애로사항은 사업장내에서는 조직과 체계상의 문제, 간호사 역할에 대한 인식부족, 권한과 자율성 부족 등을 들었고, 사업장 방문시에는 사업주와 근로자의 인식부족이 우선적으로 지적되었다. 또한 산업간호사는 보건관리 대행업무에서 사업장의 참여유도, 사업장 순회점검 및 개선지도, 보건교육, 건강상담이 우선적으로 실시되어야 한다고 하였다. 다섯째, 보건관리대행기관 산업간호사의 업무수행정도는 건강검진이나 직업병관리, 보건교육, 환경위생관리업무를 비교적 많이 실시하는 것으로 나타났다. 여섯째, 보건관리대행기관 산업간호사의 직무만족도는 전문적 위치나 상호작용, 업무요구등은 높게 나타났으나 보수와 산업보건관계자와의 관계등은 만족도가 낮게 나타났다. 또한 직무만족도에 대한 총화점수는 사업장근무자가 240점중 143.8인데 비해 보건관리대행기관 근무자는 230점중 129.61점으로 더 낮게 나타났다. 일곱째, 일반적 특성별 보건관리대행 산업간호사의 직무수행정도는 연령별 30세이상군이, 결혼상태별로 기혼군이, 경력은 1년이상인 군이, 근무시간 8시간인군이, 급여수준은 50만원이상인군이, 법정휴가가 있는 군이, 자질향상교육을 받은군이 담당사업장수가 30개이하인 군이, 더 높게 나타났다. 또한 연령군이 20-24군과 30세이상인군 (p<0.05), 결혼상태별로 기혼군과 미혼군(p<0.01), 급여수준별로 50만원미만군과 이상인 군(p<0.05), 법정휴가가 있는 군과 없는군(p<0.05), 자질향상 교육을 받은군과 받지못한 군(p<0.01), 담당사업장수가 30이하인 군과 31인이상인 군(p<0.05) 간에 유의한 차이를 보였다. 즉 산업간호사중 나이가 많고, 기혼이며 급여수준이 높고 법정휴가와 교육을 받고, 담당사업장수가 30이하인 군이 보건관리대행업무를 잘 수행하는 것으로 나타났다. 여덟째, 일반적 특성별 보건관리대행 산업간호사의 직무만족도는 연령별 30세이상군이, 결혼상태별로 기혼군이 경력은 1년이상인 군이, 근무시간 8시간인군이, 급여수준은 50만원이상군이, 법정휴가가있는군이, 자질향상교육을 받은군이, 담당사업장수가 30개이하인 군이 더 높게 나타났다. 또한 결혼상태별로 기혼군과 미혼군(p<0.01), 근무시간별로 8시간군과 9시간 이상인 군(p<0.01), 급여수준별 50만원 미만군과 이상군(p<0.05), 자질향상교육을 받은군과 받지 않은군(p<0.05) 사이에 유의한 차이를 보였다. 즉 산업간호사중 기혼이고 근무시간은 8시간이며 급여수준이 높고 자질향상교육을 받은 군이 만족도가 높은 것으로 나타났다. 아홉째, 보건관리대행기관 산업간호사의 업무수행정도와 직무만족도 사이의 상관관계를 보면 보수, 자율성, 업무요구가 높을수록 산업간호업무를 수행을 잘하는 것으로 나타났으며(상관관계 r>0.6, P>0.001), 전체적으로 총직무만족도와 업무수행정도와의 상관관계는 6346, P<0.001로서 만족도가 높을수록 업무수행정도가 높은 것으로 나타났다. 이상의 결과를 토대로하여 보면, 보건관리대행기관에 근무하는 산업간호사는 그 특성을 고려하여 업무도 사업장 근무자와 다르게 규정되어야 하며, 담당업무의 명확한 한계를 정해 중소규모사업장의 산업보건관리업무를 책임있게 수행할 수 있도록 뒷받침이 필요하다. 더불어, 직무만족도를 높일수 있도록, 산업간호사에 대한 다방면의 지원이 필요하다고 하겠다. 또한 보건관리대행기관 산업간호사는 나이가 많고 기혼이며 경력있는 간호사를 채용하고 근로조건을 잘 개선하면 직무수행정도가 더 높아질 것으로 보인다. 좋은 근로조건의 형성과 직무만족도 등을 높여 산업간호사의 직무를 효율적으로 수행할 수 있도록 하기 위하여는 보건관리대행기관에 관한 규정이 강화 보완되어야 하겠으며, 민간단체와 의료기관 뿐아니라 공공기관에서도 중소규모사업장의 보건관리업무를 담당하는 방향으로 전환하는 방안을 모색해 보아야 할 것이다.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.21 no.6
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• pp.21-35
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• 2022

With the support of local and central governments, various incentive policies for "green" cars have been established, and the number of electric vehicle users has been rapidly increasing in recent years. As a result, much attention is being given to establishing a user-centered charging infrastructure. A standard for the number of electric vehicle chargers to be supplied is being prepared based on building characteristics, but there is quite limited research on the appropriate ratio of slow and fast chargers based on the characteristics of each place. Therefore, this study derived an appropriate penetration ratio based on data about the distribution ratio of common slow chargers. These data were collected using a survey of actual electric vehicle users. Next, an analysis was done on how to categorize the needs of charging environments and to determine what criteria or characteristics to use for categorization. Based on the results of the survey analysis, three types of places were derived. Type-1 places require 10% of chargers to be slow chargers, Type-2 places require 40-60% of chargers to be slow chargers (i.e., around equal distribution of slow and fast chargers), and Type-3 places require more than 80% of chargers to be slow chargers. The required levels of slow chargers were classified by place type and by individual using latent class cluster analysis, which made it possible to categorize them into five clusters related to socioeconomic variables, vehicle characteristics, traffic, and charging behaviors. It was found that there was a high correlation between charging behavior, weekend travel behavior, gender, and income. The results and insights from this study could be used to establish charging infrastructure policies in the future and to prepare standards for supplying charging infrastructure according to changes in the electric vehicle market.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.38 no.3
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• pp.281-293
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• 2020

Recently, large and small fires have been happening more often in Korea. Fire is one of the most frequent disasters along with traffic accidents in korean cities, and this frequency is closely related to the land use and the type of facilities. Therefore, in this study, the significance of fires was analyzed by considering land use, facility types, human and social factors and using 10 years of fire data in Jinju city. Based on this, OLS (Ordinary Least Square) regression analysis, SLM (Spatial Lag Model) and SEM (Spatial Error Model) using space weights, were compared and analyzed considering the location of the fire and each factor, then a statistical model with high suitability was presented. As a result, LISA analysis of spatial distribution patterns of fires in Jinju city was conducted, and it was proved that the frequency of fires was high in the order as follow, central commercial area, industrial area and residential area. Multiple regression analysis was performed by integrating demographic, social, and physical variables. Therefore, the three models were compared and analyzed by applying spatial weighting to the derived factors. As a result of the significance test, the spatial error model was analyzed to be the most significant. The facilities that have the highest correlation with fire occurrence were second type neighborhood facilities, followed by detached house, first type neighborhood facilities, number of households, and sales facilities. The results of this study are expected to be used as significant data to identify factors and manage fire safety in urban areas. Also, through the analysis of the standard deviation ellipsoid, the distribution characteristics of each facility in the residential area, industrial area, and central commercial area among the use areas were analyzed. In, the second type neighborhood facility with the highest fire risk was concentrated in the center. The results of these studies are expected to be used as useful data for identifying factors and managing fire safety in urban areas.

• Journal of the Korean Society of Food Science and Nutrition
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• v.42 no.9
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• pp.1499-1512
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• 2013

The purpose of this study was to compare the coffee shop visits of Koreans and Mongolians, and to determine the quality attributes that should be managed by Importance-Performance Analysis (IPA). The survey was conducted in Seoul and the Gyeonggi Province of Korea, and at Ulaanbaatar in Mongolia from April to May 2012. The questionnaire was distributed to 380 Koreans and 380 Mongolians, with 253 and 250 responses from the Koreans and Mongolians, respectively, used for statistical analyses. From the results, Koreans visited coffee shops more frequently than Mongolians, with both groups mainly visiting a coffee shop with friends. Koreans also spent more time in a coffee shop than Mongolians. In addition, they generally used a coffee shop, regardless of time. In terms of coffee preference, Koreans preferred Americano and Mongolians preferred Espresso. The most frequently stated purpose of Koreans for visiting a coffee shop was to rest, while Mongolians typically visited to drink coffee. The general price range respondents spent on coffee was less than 4~8 thousand won for the Koreans and 2~4 thousand won for the Mongolians. Both Koreans and Mongolians obtained information about coffee shops from recommendations. According to the IPA results of 20 quality attributes of coffee shops, the selection attributes with high importance but low satisfaction were quality, price, and kindness for Koreans, but none of the attributes was found for Mongolians.

• Journal of the Economic Geographical Society of Korea
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• v.8 no.1
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• pp.91-105
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• 2005

The assessment (or the evaluation) of spatial disparity is the main concern for the study of spatial disparities or spatial inequalities. In order to evaluate the spatial disparity, the regional differences have to be counted quantitatively. Several measurements have been introduced for evaluating the development potentials of each region. Most of them are the composite indices of the socio-economic variables rather than the real potentials of the region. This study attempts to investigate the spatial disparity in Korea. For the purpose, the levels of opportunity potentials of the cities have been calculated by the Potential Model redefined by Lee(1995). The opportunity potentials have been calculated for the educational, cultural, medical service, environmental sectors, income, and consumption sectors, and the spatial patterns of various opportunity potentials have been analyzed. The spatial patterns of opportunity potentials show the severe concentration on the Metropolitan Seoul area through all sectors. The next level concentration appears at the other end of the Keuyng-Bu axis. And the cities relatively high opportunity potential values are distributed along the Keuyng-Bu axis. Remain parts of the country show quietly low opportunity potential values. In particular, the southern-west and the northern-east parts show relatively very low values. This pattern appears for all sectors except for the opportunity potential of the environmental sector. It means that the spatial disparity in Korea have been promoted and enhanced by the national development policies concentrated the investment on the large cities along the Keuyng-Bu axis during the last 40 years.

• Journal of agricultural medicine and community health
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• v.25 no.1
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• pp.133-147
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• 2000

To provide data for the improvement of primary health care through the study on the utilization rate of community health practitioner(CHP) post and its related factors toward some rural residents in Mooan County Chollanamdo, a questionnaire survey was made from 382 persons during August 1999. Comparison was made between persons at the seaside area under difficult transportation and persons at the railroad area under convenient transportation. The results are as follows: 1. For the last one year, 83.3% of seaside area residents and 67.0% of railroad area residents used CHP post. As the purpose of visit to CHP post at seaside area, 94.3% visited for medical care, 25.3% for chronic disease control and 22.2% for health counselling and 14.1% for chronic disease control. 2. By simple analysis, sex, age, marital status, educational level, residence area, distance from living village to CHP post, presence of chronic diseases, satisfaction with CHP and confidence on CHP were related significantly with the utilization of CHP post for the last one year. 3. By multiple logistic regression, statistically significant variables related with the utilization rate of CHP post for the last one year were analyzed as age, sex, residence area and distance from living village to CHP post.

• Journal of the Society of Disaster Information
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• v.18 no.1
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• pp.202-217
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• 2022

Purpose: The recent increased use of Personal Mobility (PM) has been accompanied by a rise in the annual number of accidents. Accordingly, the safety requirements for PM use are being strengthened, but the laws/systems, infrastructure, and management systems remain insufficient for fostering a safe environment. Therefore, this study comprehensively searches the main problems and improvement methods through a review of previous studies that are related to PM. Then the priorities according to the importance of the improvement methods are presented through the Delphi survey. Method: The research method is mainly composed of a literature study and an expert survey (Delphi survey). Prior research and improvement cases (local governments, government departments, companies, etc.) are reviewed to derive problems and improvements, and a problem/improvement classification table is created based on keywords. Based on the classification contents, an expert survey is conducted to derive a priority improvement plan. Result: The PM-related problems were in 'non-compliance with traffic laws, lack of knowledge, inexperienced operation, and lack of safety awareness' in relation to human factors, and 'device characteristics, road-drivable space, road facilities, parking facilities' in relation to physical factors. 'Management/supervision, product management, user management, education/training' as administrative factors and legal factors are divided into 'absence/sufficiency of law, confusion/duplication, reduced effectiveness'. Improvement tasks related to this include 'PM education/public relations, parking/return, road improvement, PM registration/management, insurance, safety standards, traffic standards, PM device safety, PM supplementary facilities, enforcement/management, dedicated organization, service providers, management system, and related laws/institutional improvement', and 42 detailed tasks are derived for these 14 core tasks. The results for the importance evaluation of detailed tasks show that the tasks with a high overall average for the evaluation items of cost, time, effect, urgency, and feasibility were 'strengthening crackdown/instruction activities, education publicity/campaign, truancy PM management, and clarification of traffic rules'. Conclusion: The PM market is experiencing gradual growth based on shared services and a safe environment for PM use must be ensured along with industrial revitalization. In this respect, this study seeks out the major problems and improvement plans related to PM from a comprehensive point of view and prioritizes the necessary improvement measures. Therefore, it can serve as a basis of data for future policy establishment. In the future, in-depth data supplementation will be required for each key improvement area for practical policy application.