• Journal of the Korean Association of Geographic Information Studies
• /
• v.23 no.3
• /
• pp.68-84
• /
• 2020

This study analyzed the relationship between spatial characteristics and heat waves in the distribution area of the elderly population in Changwon, Gyeongsangnam-do. For analysis, the Statistics Census data, the Ministry of Environment land cover, Landsat 8 surface temperature, and the Meteorological Agency's heat wave days data were used. The spatial characteristics of the distribution of the elderly population was classified into 5 types through K-mean cluster analysis considering the land use types. The characteristics of the elderly population by spatial type were higher in the urbanized type(cluster-3), but the proportion of the elderly population was higher in the agricultural and forest area types(cluster-1, cluster-2). In the characteristics of the surface temperature and the heat wave days, the surface temperature was the highest in the urban area, but heat wave days were the highest in the rural area. As a result of analyzing the heat wave characteristics according to the spatial type of the distribution area of elderly population, cluster-2 with the largest area in agricultural areas was highest at 15.95 days, and cluster-3 with a large area in urbanized types was the lowest at 9.41 days and 9.18 days. In other words, the elderly population living in rural areas is more exposed to heat waves than the elderly population living in urban areas, and the damage is expected to increase. The results of this study could be used as basic data to prepare various policy measures for effective management and prevention of vulnerable areas in summer.

• Journal of Korea Society of Industrial Information Systems
• /
• v.21 no.6
• /
• pp.53-69
• /
• 2016

The purpose of this study is to analyze the factors of Elderly Social Activity (Employment) Programs participatory intention of middle and old aged and to figure out the undertone of research results. To achieve this aims, we conducted a literature survey on Elderly Social Activity Programs and local informatization, and then designed a questionnaire including the demographic information and the five variables, i.e., satisfaction on local informatization, satisfaction on health condition, satisfaction on economic condition, satisfaction on human relationship, and participatory intention of Elderly Social Activity (Employment) Programs. The data were collected through online and offline survey targeted those aged over 50 and participated in information literacy program in Korea. A total of 333 valid data were analyzed using SPSS and AMOS statistical packages. The results can be summarized as follows: satisfaction on local informatization and satisfaction on health condition have a statistically significant effect on Elderly Social Activity (Employment) Programs participatory intention. In the comparative analysis of two groups between economic active group and economic inactive group, only health has a statistically significant effect on their participatory intention in economic active group, not only health but also local informatization has a statistically significant effect on the their participatory intention in economic inactive group. Therefore, local informatization is an essential prerequisite and local informatization should be improved for the middle aged and elderlies who have willingness to participate in Elderly Social Activity (Employment) Programs.

• Journal of the Korean BIBLIA Society for library and Information Science
• /
• v.22 no.1
• /
• pp.11-26
• /
• 2011

The expectation and the role for the university are rising due to the national competitiveness and change of environment in higher education in the knowledge based society, and the role to realize the effective lifelong study is also underlined in lifelong study society. And the social awareness is also diffused that the university should share the specialized substantial information resource with the community, and ensure the access right to knowledge and information to local inhabitant. Like this, the roll as an information center that the university can develop the local society as the component of the community according to the diffusion of lifelong study and the change of civic awareness. To check the open state of university libraries to community, this study surveyed and analyzed the open state of 4-year-course university libraries in Seoul and Gyoenggi region. On this base, this study emphasized that the university should open its libraries and positively offer the abundant specialized data of university libraries to the local residents. And this study suggested the way that the university libraries can cooperate connecting with the local public libraries and the school libraries as a positive service way of university libraries. Also this study accentuated that the university libraries should establish an open-door policy of its libraries and enlarge the service for the local residents by using the university conditions to maximum with the positive support of the university libraries of government and the university's bureaucracy.

• The Journal of Engineering Geology
• /
• v.15 no.2 s.42
• /
• pp.105-121
• /
• 2005

Most of the landslides triggered by intensive rainfall on natural slope occur serious damages of human beings and properties. There have been many landslides since 1991 in Gyeonggi province. The influential factors are rainfall, topography, geology and soil properties. There were 660 landslides occurred by intensive rainfall as much as 250mm at Yongin and Anseong area from Tuly 19th to luly 21st,1991 This study surveyed location, topography, geology, geometry of the landslide and rainfall at the area and analyzed occurrence characteristics of the landslides. Most of the landslides occurred on the soil layer above the bed rock. They showed changes of landslide types from translational slides at the head part to flow at the central part. The landslides have relatively small magnitude of which length is shorter than 50m. In order to identify characteristics of landslides dependent on soil conditions, geotechnical properties of soil were evaluated by laboratory tests using soil samples which were collected on slided area and not-slided area. Soil properties of the slided area show high percentage of coarse material such as gravel and sand. However, soil of the not-slided area is mainly composed of fine material such as silt and clay. Permeability coefficients of the slided area are higher than those of the not-slided area.

• Journal of the Korean Society of Earth Science Education
• /
• v.12 no.3
• /
• pp.184-197
• /
• 2019

The purpose of this study is to explore needs and the direction for the development of localization data in the geological field of elementary school. Many studies show that geology-related learning is highly effective in the form of direct learning, and It is reported that this learning has a positive effect on students' scientific attitudes. As such, the first-hand experience of the geological learning is outdoor geology learning and is the basis and core of the development of localization materials. However, the analysis of this study shows that the development of outdoor geology learning site is mainly conducted in some regions. In addition, considering that geological sites are distributed evenly throughout Korea, it is necessary to actively develop geological-related localization materials to learn elementary school geology-related units. In addition, some areas where outdoor geological study grounds were developed are composed only of learning places and no specific learning materials have been developed. In this regard, not only geological researchers but also field teachers working in the area need much effort. Development of localization material in the geological field needs to be developed at the level of material presented in the geology unit of the textbook. And in the actual class, it is desirable to use the textbook data and the developed localization data at the same time. In addition, the development of the outdoor geology field should be developed in consideration of the pre-experience-post activities so that learners can have various geological experiences.

• The Journal of the Korea Contents Association
• /
• v.8 no.3
• /
• pp.252-263
• /
• 2008

This study was conducted to derive the optimal regionalization of the precipitation data which can be classified on the basis of climatologically and geographically homogeneous regions all over the regions except Cheju and Ulreung islands in Korea. A total of 65 rain gauges were used to regional analysis of precipitation. Annual maximum series for the consecutive durations of 1, 3, 6, 12, 24, 36, 48 and 72hr were used for various statistical analyses. K-means clustering mettled is used to identify homogeneous regions all over the regions. Five homogeneous regions for the precipitation were classified by the K-means clustering. Using the L-moment ratios and Kolmogorov-Smirnov test, the underlying regional probability distribution was identified to be the generalized extreme value (GEV) distribution among applied distributions. The regional and at-site parameters of the generalized extreme value distribution were estimated by the linear combination of the probability weighted moments, L-moment. The regional and at-site analysis for the design rainfall were tested by Monte Carlo simulation. Relative root-mean-square error (RRMSE), relative bias (RBIAS) and relative reduction (RR) in RRMSE were computed and compared with those resulting from at-site Monte Carlo simulation. All show that the regional analysis procedure can substantially reduce the RRMSE, RBIAS and RR in RRMSE in the prediction of design rainfall. Consequently, optimal design rainfalls following the regions and consecutive durations were derived by the regional frequency analysis.

• The Journal of Engineering Geology
• /
• v.10 no.1
• /
• pp.1-12
• /
• 2000

Heaving of road and subsidence of slope took place at the Wiri region of the local highway 999 in Gyeongsangbukdo, Korea after heavy rain in the next year of construction. Although the state government had performed remedial treatments by reducing the angle and the height of the slope, deformation had never stopped. Therefore, we have preformed the analysis of deformation and stabilityof the slope. Study area consists of the Cretaceous shale, siltstone and sandstone and two faults are found. The major deformation occurred by sliding of rock mass along faults after heavy rain because not only thepore pressure at the fault plane and the unit weight of sliding mass increased, but did the shearstrength of saturated fault clay become very low. The decrease in shear strength of saturated fault clayis the major factor among the reasons for deformation. Numerical simulations using limit equilibriummodel, finite difference model and finite element model were performed for eight cross sections.Although safety factors are above 1.7 during the dry season, they become below 1.0 when groundwaterlevel raises to surface. The maximum displacement is about 15-3Ocm. However, safety factors increasedto above 2.4 and the maximum displacement is below 2.08cm after remedial treatment, Indicating thatthe slope becomes stable.

• Journal of Environmental Impact Assessment
• /
• v.27 no.1
• /
• pp.92-104
• /
• 2018

The loss of biodiversity has become a global issue. In order to cope with this problem, national biodiversity strategies and action plan (NBSAP) at national level as well as local biodiversity strategies and action plan (LBSAP) at local level have been established in many countries. In this study, we analyzed 8 domestic LBSAPs and 41 foreign LBSAPs through semantic network analysis to investigate the characteristics of domestic and foreign LBSAPs. The results showed that conservation and management were the most used keywords in both domestic and foreign LBSAPs but the ranking of other keywords used in vision, goal, strategy, and action plan sector was different. Thus, it has been found that there is a difference between domestic and foreign practical approaches to conservation and management of biodiversity. Results of the network analysis showed that the domestic network has a more detailed distributed network, while the foreign network has a more comprehensive and integrally configured dense network. These differences may be due to differences of threats to biodiversity, problem recognition, or differences in local circumstances. These results are expected to help establish LBSAP in other region or to assess the local roles to achieve the strategic goals of the Convention on Biological Diversity.

• Journal of the Korean association of regional geographers
• /
• v.9 no.3
• /
• pp.276-296
• /
• 2003

This study is to analyze the adoption of environmentally friendly fanning(EFF) by Actor-Network Theory(ANT). ANT declares that the world is full of hybrid entities containing both human and non-human elements and maintains that adoption of an innovation comes as a consequence of the action of everyone in the chain of actors who has anything to do with it. In this study, adoption of EFF will be analysed through the role of actors and networks. And this paper try to identify the intermediaries and obligatory passage point(OPP) in each networks. In study area, 5 actors, -nature, governmental institute, food processors, consumers and farmers-, have each roles in their networks, But only 18 farmers adopted EFF. This study revealed that three OPPs were not overcome in each network. The one is nature, such as water and soil pollution. Another is shortage of reliability between farmers and governmental institute. The other is shortage of information about agricultural commodity trade. And through this application of ANT to the EFF, we contend that ANT can be useful for studies of diffusion of EFF and sustainability of rural systems in situations where interactions of the social, technological and political are regarded as particularly important.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.39B no.5
• /
• pp.281-290
• /
• 2014

The real-time data dissemination schemes exploit the spatiotemporal commuication approach which forwards data at the delivery speed calculated with the desired time deadline and the end-to-end distance in wireless sensor networks (WSNs). In practical environments, however, the performance of the real-time data dissemination might be degraded by additional and inevitable delay due to some holes. Namely, the holes lengthen the data delivery path and the spatiotemporal approach could not estimate a distance of the data delivery path. To deal with this, we propose A Hole Self-Organization Real-time Routing Protocol for Irregular Wireless Sensor Networks. In proposed protocol, nodes around holes could detect them at deploying phase. A hole is represented as a circle with center point and radius. This hole information is processed and provided as a form of location service. When a source queries a destination location, location provider replies certain points for avoiding holes as well as destination location. Thus, the source could set desired speed toward the destination via the points. Performance evaluation shows that provides better real-time service in practical environments.