• Land and Housing Review
• /
• v.12 no.4
• /
• pp.61-79
• /
• 2021

Despite the rapid economic growth, people's quality of life has not been improved and the regional and hierarchical disparities of it have deepened. We analysed regional differences in quality of life and it was found that non-capital regions, provinces and rural areas compared to Seoul and capital region, metropolitan cities, and urban areas respectively, show a relatively lower level of satisfaction in the quality of life. An in-depth analysis of Chungcheongnam-do province shows that the trend was similar to that of the national analysis. The quality of life satisfaction of the elderly was lower than that of the young and middle-aged, and this trend was similar regardless of region. Young people living in the Dong area showed high satisfaction with the quality of life than the middle-aged and elderly living in the Myeon area. It was observed the level of Life SOC services in urban areas have been better than the one in rural areas. However, there is no clear relationship between quality of life satisfaction and the expansion of Life SOC, therefore, it is difficult to argue that the government intervention to expand Life SOC will improve the citizen's quality of life satisfaction. The implication of the study is that the future supply policy of the Life SOC should be based on the detailed analysis of the impact on the environment, and linking with the development of various programs in progress rather than supplying a Life SOC that provides a single service. Furthermore, in rural areas it is essential to enhance user demand by combining several services in supply and to improve the efficiency of managing the services.

• Journal of the Economic Geographical Society of Korea
• /
• v.23 no.1
• /
• pp.82-92
• /
• 2020

This study attempts to explore the activities and performance of industry-academic cooperation with the perspective of the firm that has not been systematically addressed in the previous research. To do this, a survey of university family companies across the country was conducted to draw factors that influence the competencies of firms and universities on the performance of industry-academic cooperation and to compare differences by region. The main results of the study are as follows. First, it was found that the knowledge and technologies that universities retain and the active participation of companies in the activities of university-academic cooperation were the most important contributors to the corporate achievements in industry-academic cooperation. Second, when divided into the Seoul metropolitan area and non-capital area, it was found that there was a difference in the capabilities and performance of industry-academic cooperation between the two regions. Third, it was found that there were significant differences in the capabilities and performance of industry-academic cooperation in five areas. These findings suggest that industry-academic cooperation projects specialized for each region is necessary to enhance the effectiveness of industry-academic cooperation.

• Journal of Practical Engineering Education
• /
• v.15 no.3
• /
• pp.751-759
• /
• 2023

In the era of global aging and the retirement of baby boomers, the response is very intensive and dynamic. As baby boomers actually retire, the terms for middle-aged people have been diversified into middle-aged, midle-elderly, and the new middle, which are also evident in the training process. In line with the timing, the government and academia are also making efforts to advance the development of training courses for middle-aged, along with organizing terms for middle-aged. From this point of view, this study aims to analyze the performance of the three-year training courses (2018-2020) for the new middle at Korea Polytechnics and suggest the direction of development of the new middle training course. As a result of the study, the three-year performance of the Shin middle-aged training course gradually increased, but the completion rate and employment rate gradually decreased, indicating that countermeasures were needed. In addition, campus performance in the metropolitan area was higher than that in the non-capital area, so a plan for this deviation was needed. In addition, the need for the integrated operation of the existing 'middle-aged' and 'the new middle' courses operated by Korea Polytechnics was suggested, and measures to specialize in the new middle-aged were proposed.

• Journal of Wetlands Research
• /
• v.19 no.3
• /
• pp.353-358
• /
• 2017

As a drinking water source of 26 millions people of Seoul metropolitan region, Han river is one of the most important basin. Managing the Non-point source pollution which is regarded as the main cause of water pollution including refractory organic matter is important thing. This research investigates the runoff characteristics of organic matters from main 3 rivers (South Han, North Han, Kyungan). Water quality measurement items include not only carbon-based TOC (Total Organic Carbon), DOC (Dissolved Organic Carbon), POC (Particulate Organic Carbon) but also R-TOC (Refractory Total Organic Carbon), R-DOC (Refractory Dissolved Organic Carbon), R-POC (Refractory Particulate Organic Carbon) is researched. The research shows that R-TOC takes approximately 61~83% of TOC. Most of the R-TOC is consist of R-DOC (72~77%). Refractory organic matter have a stable runoff characteristics compared to other organic matter. The organic matter concentrations of South Han river and Kyungan river are the highest in spring time and show a gradual decline. The concentrations of Kyunan river is the highest. Kyungan river's small area and the high city land use ratio seem to be the reason. Loading of organic matter in summer time takes the most loading (62~84%). TOC loadings per unit area of each river is Kyungan river ($1.22ton/km^2$), South Han river ($1.01ton/km^2$), North Han river ($0.91ton/km^2$).

• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.35 no.4
• /
• pp.897-905
• /
• 2015

This research suggested the traffic signal calculation model of active transit signal priority using a shockwave model. Using this signal priority timing optimization model, the shockwave area is computed under the condition of Early Green and Green Extension among active transit signal priority techniques. This study suggested the speed estimation method of backward shockwave using average travel time and intersection passing time. A shockwave area change is calculated according to signal timing change of transit signal priority. Moreover, this signal timing calculation model could determine the optimal signal priority timings to minimize intersection delay of general vehicles. A micro simulation analysis using VISSIM and its user application model ComInterface was applied. This study checked that this model could calculate the signal timings to minimize intersection delay considering saturation condition of traffic flow. In case studies using an isolated intersection, this study checked that this model could improve general vehicle delay of more over ten percentage as compared with equality reduction strategy of non-priority phases. Recently, transit priority facilities are spreading such as tram, BRT and median bus lane in Korea. This research has an important significance in that the proposed priority model is a new methodology that improve operation efficiency of signal intersection.

• Water for future
• /
• v.16 no.4
• /
• pp.245-252
• /
• 1983

Recently river water pollution in Korea is given rise to serious problem in aspect of crop production, drinking well, water contamination and etc. Under these urgent situations, it is prime importance to protect water resources from pollutants. An environmental isotope survey of the groundwater form the shallow alluvial and the underlying crystalline rock aquifer of the Han River Basin has been undertaken, Analysis of the data has I) confirmed the hypothesis that the groundwater from the metropolitan area is recharged from the river whereas that form the non-urbanized region of the Basin is replenished by the infiltrating precipitation; ii) shown that crystalline rock aquifers are recharged by the ground water form the overlying alluvium. Old groundwater is a group of wells with tritium values in the range of 0 to 2 TU. These low values indicate that the water sampled was recharged much ealier, at least a few decades, than the other groundwater samples of higher tritium content. The low values in this region may, in fact, reflect the effect of the impermeable clay layers which impede infilteration from the surface. Stable isotope evidence confirmed that a recharge in the karst area occurs at a significantly greater elevation than that to the alluvial aquifer. An analysis of the tritium level collected over an annual cycle suggests that the residence time of groundwater is probably not more than a few months. There does not appear to be any correlation between the trace level of Zn, Mn and Pb in the groundwater and the mechanism of the recharge.

• Korean Journal of Construction Engineering and Management
• /
• v.15 no.4
• /
• pp.86-94
• /
• 2014

Since the late 1990s, mixed-use apartment, armed with high qualities and large scales with a high ratio of TFA(Total Floor Area) have been continuously provided accommodating exclusive community facilities along with high-tech securities, not to mention excellent skyline view. However, especially in mid-small cities, there have been only a few supplies. As a result, none of the mixed-use housing provided by high-end brands has ever been built in non-metropolitan area. But constructors couldn't plan the projects which aims to build the mixed-use apartment in local city, because they couldn't get the basic data or advanced research for feasibility analysis. Therefore, to suggest the useful price for mixed-use apartment supply project of local city, the PSM(Price Sensitivity Method) widely used for determining the price preferences as a market research tools has been applied. As analysis results, the estimated price of mixed-use apartment is 10.8% higher than general apartment, and mixed-use apartment has lower price sensitivity than general apartment. As price determinants, the age, education level and family size influence on UTP in significant level. It is expected that these research findings can be applied for establishing the solid marketing strategy of mixed-use apartment development project in local city.

• Advances in pediatric surgery
• /
• v.3 no.1
• /
• pp.61-67
• /
• 1997

To understand the current status of pediatric surgical practice of the members of the Korean Association of Pediatric Surgeons, a survey of the practice of the 31 members in both 1994 and 1995. Twenty five members(80%) representing 20 hospitals responded. An average of four hundred and seventy four cases pediatric surgical operations were performed at individual institution in 1995 with 40 newborn cases. Eighteen members(72%) are currently working at university hospital. Fourteen institutions(70%) are currently classified as tertiary by the health insurance agency. The majority(15 to 60%) of members are working in the metropolitan Seoul area, while five in Taegu area. Sixteen members reported having the title of department head/director. Four members reported occasional non-pediatric surgical practice. Nine members out of 20 reported having independent pediatric surgical out-patient clinic before the establishment of the association(1985). Eight out of 15 members reported being appointed chief of pediatric surgery before 1985. In 20 institutions, 34 full time physicians(27 members, reportedly) are working in pediatric surgery. In regarding to pediatric surgical training, 16 members(64%) received an average of 16 months of training abroad, 5 members trained at home and abroad, and 4 from only at home. There are no differences in length of training periods in these groups. Twenty one members received their basic pediatric surgical training before 1985, the year of inauguration of the association. Twelve members received post-pediatric surgery refresher courses averaging 11 months' duration, after 2-11 years. Thirteen participants of this study belongs to the founding members of the association.

• Journal of Environmental Analysis, Health and Toxicology
• /
• v.21 no.4
• /
• pp.264-280
• /
• 2018

In this study, volatile organic compounds (VOCs) were measured using a proton transfer reaction-time of flight-mass spectrometer (PTR-ToF-MS) at the Seoul Metropolitan Area Intensive Monitoring Station (SIMS) in Korea during the summer season of 2018. The results revealed that oxygenated VOCs (OVOCs) contributed a large fraction (83.6%) of the total VOCs, with methanol being the most abundant constituent (38.6%). The VOCs measured at SIMS were strongly influenced by local conditions. Non-volatile organic compounds (NVOCs), such as pinene, increased due to northeasterly wind direction in the morning, and OVOCs and anthropogenic VOCS (AVOCs) increased with northwesterly wind direction during the daytime. This was the result of the eastward location of Bukhansan National Park and the westward location of urban area from the SIMS location. The VOCs included abundant oxidized forms of VOCs, which can affect the generation of fine dust through various response pathways in the atmosphere. The real-time measurement technique using PTR-ToF-MS suggested in this study is expected to contribute to an improved scientific understanding of high-concentration fine dust events because the high temporal resolution makes it possible to analyze the variations of VOCs reflected in dynamic events.

• Journal of Christian Education in Korea
• /
• v.66
• /
• pp.343-382
• /
• 2021

This study is a case study in which the interactive non-face-to-face classes using Edutech were applied to the Department of Christian Education. The subjects were 20 students from the Christian education department of A University located in the metropolitan area. The course was 'Instructional Methods and Educational Technology' in the first semester of 2020. In theory, I studied non-face-to-face classes and interaction, and edutech and interaction. Afterward, it designed and developed interactive non-face-to-face classes using edutech. The interactive non-face-to-face classes using edutech were developed as a process of applying Flipped-PBL based interactive edutech. In addition, Edutech was selected for active interaction according to the Flipped-PBL process to be carried out in a non-face-to-face situation. In particular, in the process of developing the problem of PBL, it was built around the situation of the church. As a result of applying the class, first, learners showed high satisfaction and interest in the class. Second, positive transference appeared in the space of learning and the space of living. Third, interactive non-face-to-face classes using Edutech have generated active interaction. In particular, interactive edutech and learning methods have become the main factors enabling active interaction. Through this, learners have improved learning efficiency, immersion, and satisfaction. Also, as an alternative to face-to-face classes, I was able to experience online classes. In other words, the satisfaction and interest of learning, and the transference of learning space, were also possible through active interactions generated through learning methods using interactive Edutech used in class. Furthermore, disabilities in the online communication(Internet) environment and learners' unfamiliarity with the online environment have been found as factors that hinder learning satisfaction and interaction. During learning, obstacles to the online communication environment hinder the utilization of interactive Edutech, preventing active interactions from occurring. This results in diminishing satisfaction and interest in learning. Therefore, we find that designing interactive non-face-to-face classes using Edutech requires sufficient learner learning and checking of the online communication(Internet) environment in advance for Edutech and learning methods. In response, this study confirmed the possibility by applying interactive non-face-to-face classes using Edutech to Christian education classes as an alternative method of education that allows active interaction and consistent transference of learning and life. Although it is a case study with limited duration and limitations of the number of people, I would like to present the possibility as an alternative Christian education method of an era where the direction of online classes should be presented as an alternative to a face-to-face class.