• Korean Journal of Construction Engineering and Management
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• v.5 no.4 s.20
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• pp.130-138
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• 2004

The demolition works of high building in korea are expecting to increase rapidly in the near future, and its general demolition methods can be divided into mechanical demolition method and explosive demolition method. The selection of the right demolition method relies on many variable elements according to environmental and geographical elements. But, generally, the most important element of those is a economical profit. Accordingly, This study estimates each demolition cost dividing into mechanical demolition method and explosive demolition method of high building in city. And the estimating of the demolition cost makes it possible to do comparative analysis for the economical efficiency of each method more objectively than any other selective elements. Also, the analysis for the economical efficiency helps to forecast the activated time of the explosive demolition method in domestic.

• Journal of Korean Society of Water and Wastewater
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• v.33 no.6
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• pp.457-467
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• 2019

Because non-point source pollution is very closely related to hydrological characteristics, its importance is highly emphasized nowadays along with accelerating climate change. Especially for Korea, the non-point source pollution and its control are entirely depending on runoff, precipitation, drainage, land use or development, based on geographical and topographical reasons of Korea. Many studies reported the physical (e.g., apparatus- and natural-type facilities, etc.) and chemical methods (e.g., organic and inorganic coagulants, etc.) of controling non-point pollutant source pollution, however, those are needed to be reconsidered along with climate change causing the unexpected patterns and amounts of precipitation and strengthen complexity of social community. The objectives of this study are to assess recent situations of non-point source pollution in Korea and its control means and to introduce possible effective ways of non-point source pollution against climate change in near future.

• Journal of Korean Academy of Rural Health Nursing
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• v.13 no.1
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• pp.21-33
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• 2018

Purpose: The purpose of this study was to identify health problems in the community by providing healthy village projects centered and based on the actual living site and to enhance the empowerment of the community related to health. Methods: The participants were 600 people who lived in one of the 5 villages under the jurisdiction of one Primary Health Care Post (PHCP) in D city. The Community Health Practitioner (CHP) carried out the projects to increase geographical and temporal accessibility by building infrastructures through connecting human and physical resources in the community. The health leaders who were trained through the project consistently managed, and periodically checked the residents' health status. Results: The participants in the projects had significantly lower levels of depression, routine stress, and activity of daily living (ADL) disorders, and higher interpersonal relationships, and health-related quality of life (HRQoL) compared to the control group. Conclusions: The healthy village projects centered on the living site led to voluntary participation from the residents, improve HRQoL and enhanced empowerment of community.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.5 no.2
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• pp.239-245
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• 2001

Nowaday, the rapid progress toward an information- oriented society results in the regional disparity in information services. Especially, the subscribe lines in islands are not advanced due to the geographical factors and a small number of subscribe. The problem in the subscribe line deepens inequalities in the development between regions. The presents of network structure and operation of the island communication in Korea are analysed, and the methods to advance subscribe lines for islands are considered in this paper.

• The Transactions of the Korean Institute of Electrical Engineers P
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• v.64 no.1
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• pp.1-6
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• 2015

Factors that have influence on solar power generation are specified into three aspects such as meteorological, geographical factors as well as equipment installation. Meteorological factors influence the most among the three. Insolation, sunshine hours, and cloud directly influence on solar power generation, whereas temperature and wind speed have impacts on equipment installation. This paper provides explanation over temperature-wind speed equation by calculating influence of temperature and wind speed on equipment installation. In order to conduct a research, pyranometer, anemometer, air thermometer, module thermometer are installed in 2MWp solar power plant located in South Cholla province, so that real-time meteorological data and generating amount can be analyzed through monitoring system. Besides, if existing and new methods are applied together, accuracy of prediction for generating amount is improved.

• Korean Journal of Plant Resources
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• v.20 no.6
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• pp.511-517
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• 2007

A stable method for strain distinction using viral RNA 1 structures analyses was developed and compared with the combined RT-PCR and RAPD methods. Seven out of 61 random primers were found to be polymorphic based on RAPD analysis resulting on the differentiation of the 33 BaYMV isolates into four distinct groups according to geographical districts. The first and largest group includes 13 isolate and consists mainly of two-rowed malting barley in Haenam area. The second group had ten collections from inland in west southern. The third group had seven isolates from west southern coastal region, where mainly six-rowed naked barley is cultivated. The last fourth group included three isolates from Gyungnam region in east southern area. Conclusively, RNA 1 analysis proved to be stable and efficient method for strain distinction for Korean BaYMV isolates. Further, results of pathogenicity and RNA 1 structure analyses revealed four groups BaYMV strains and were distributed all over Korea, represented by Naju, Haenam-okcheon, Iksan and Milyang.

• Korean Journal of Plant Resources
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• v.23 no.3
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• pp.214-222
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• 2010

Many research results have indicated that many kinds of useful ingredients are rich in buckwheat, which have high nutritional values and medicinal properties, so, buckwheat has been cultivated around Asia and Europe. In this paper, genetic diversity of common and tartary buckwheat germplasms were studied based on morphological and molecular markers in order to provide useful information for conservation and utilization of buckwheat genetic resources. The length, width, thick, value and weight of the seed of the common and tartary buckwheat were measured and analyzed by the statistics methods. The result has shown that there are morphological variation both in common buckwheat and tartary buckwheat seeds collected from different regions. It also has shown that the morphological variation of tartary seeds was significantly correlated to geographical regions. The nuclear ribosomal internal transcribed spacers (ITS) of the tartary buckwheat collected from different countries were cloned, sequenced and statistically analyzed. The data showed that ITS sequences were informative to analyze the phylogeny of the tartary buckwheat and the data also showed that the genetic distances varied among different tartary buckwheat seeds collected from different countries.

• IEMEK Journal of Embedded Systems and Applications
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• v.4 no.1
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• pp.42-49
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• 2009

Most Vehicular Ad hoc Network (VANET) applications rely heavily on broadcast transmission of traffic related information to all reachable nodes within a certain geographical area. Among various broadcast approaches, flooding is the first broadcasting technique. Each node rebroadcasts the received message exactly once, which results in broadcast storm problems. Some mechanisms have been proposed to improve flooding in Mobile Ad hoc Networks (MANET), but they are not effective for VANET and only a few studies have addressed this issue. We propose two distance-based and timer-based broadcast suppression techniques: 15P(15percent) and slotted 15P. In the first (distance based) scheme, node's transmission range is divided into three ranges (80%,15%and5%). Only nodes within 15% range will rebroadcast received packet. Specific packet retransmission range (15%) is introduced to reduce the number of messages reforwarding nodes that will mitigate the broadcaststorm. In the second (timer-based) scheme, waiting time allocation for nodes within 15% range isused to significantly reduce the broadcaststorm. The proposed schemes are distributed and reliedon GPS information and do not requireany other prior knowledge about network topology. To analyze the performance of proposed schemes, statistics such as link load and the number of retransmitted nodes are presented. Our simulation results show that the proposed schemes can significantly reduce link load at high node densities up to 90 percent compared to a simple broadcast flooding technique.

• Journal of the Korean Home Economics Association
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• v.29 no.1
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• pp.1-12
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• 1991

The purpose of this study was to identify external form and internal symbolism of oriental dress on the 20th century western fashion. Documentary studies and objective studies were done with descriptive, inductive and content analytic methods. In documentary research, concepts about culture, dress as a cultural sub-system, the from of dress, and the gender symbolism of dress were reviewed. In objective research, oriental fashion photographs in $\ulcorner$Vogue$\lrcorner$ during 1969-1989 were selected and analyzed, for the descriptions of samples, the form of dress, the perception of waist parts, the dressing manner. The synthetic results were as followes; 1. There were the geographical and national terms such as east, Orient, China, India, Japan, and so on in the descriptions of samples; and there were the costume terms such as herem, kimono, pyjama or pajama, sarong, and so on in the descriptions of samples. 2. The from of oriental dress on the 20th century western fashion was identified with draped type. This can be interpreted that in orient, there was no desire to reveal body figure through dress, therefore, for the long time, sustaining draped type of dress has been. 3. The perception of waist part in oriental dress on the 20th century western fashion was not made. So, it can be interpreted that in orient, there was no desire to distinguish both sexes through the emphasis of waist part in dress. 4. The dressing manners of oriental dress on the 20th century western fashion were wearing of trouser and layering mainly, symbolizing the confusion of gender distinction through dress.

• Journal of Korean Academy of Psychiatric and Mental Health Nursing
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• v.27 no.4
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• pp.415-426
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• 2018

Purpose: This study aimed to explore the essentials of psychiatric and mental health nursing by identifying the care experience of the psychiatric nurses. Methods: Eleven psychiatric nurses were recruited across five geographical areas in the Korea. Data were collected using semi-structured interviews from two focus groups, which were analyzed with an inductive content analysis. Results: Participants constructed two categories including 'nursing tasks for the client' and 'nursing tasks for the organization'. Subcategories of nursing tasks for the client are 'staying alert on crisis prevention', 'leading them to be real with eager and persistent will', 'nursing beyond role boundaries', 'tuning the needs of clients' family', 'taking journey with clients' personal life history', and 'doing invisible but recognizable nursing'. Subcategories of nursing tasks for the organization are 'working as a responsible team member', 'integrating team competencies at the center of team', and 'balancing protection and control'. Conclusion: Psychiatric nurses played professional and holistic care roles for the clients, and managerial roles for the organizations. This study provides essential data for defining psychiatric nursing and estimating the appropriate ratio of psychiatric nursing staffing.