• Korean Institute of Interior Design Journal
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• v.21 no.2
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• pp.14-22
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• 2012

In regards to museum planning of Korea, it is mainly depending on overseas cases and relevant domestic books without systematic guideline on the space programme in a museum. Therefore, it is urgently required to establish systematic index as it is incapable of proposing detailed analysis and index in accordance with each element. As various problems occurred due to above reason, total floor area of museum was divided by the area of exhibition section, storage section, research section, and public & other area and its ratio was calculated for statistics targeting 614 museums built after 1990's when many public museums were built with the settlement of local self-governing system and the type of museums was diversified. It was again classified into 4 elements of period, region, scale, and type and then the influence of each element on each section of museum was understood through integrated analysis. First, looking into the space programme in regards to total floor area, the floor area ratio of exhibition section, storage section, and research section decreased and the floor area ratio of public & other area increased with the increase in total floor area. It was because not only rest area but also a space to enjoy various cultures, gaining new experience, and accumulate knowledge is located in public & other area. Second, it was revealed that the ratio of exhibition section and storage section has been decreasing since 1990's and ratio of research section and public & other area has been increasing as they can play various roles such as the education and convenience to satisfy cultural desires of visitor in accordance with current trend. Third, it was proved that floor area ratio of exhibition section is lower than storage section in museums located in highly urbanized region. In addition to this, it was revealed that the floor area ratio of research section is in proportion to the population density. As a result of study, significant relation was displayed in scale, era, and region among 4 elements thus it could be utilized as reference for the space programme of domestic museum planning in the future.

• The Journal of the Korea Contents Association
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• v.18 no.4
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• pp.314-322
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• 2018

In recent times, increasing is the number of civic participation government policy decision models through the application of the service design process. It's because the effect of a policy is cut in half due to the low acceptance will for police execution, which could occur in the supplier-oriented policy-decision process in the past. For solving out such a problem, civic participation policy service design has been under way in the name of 'National Design Group' led by the Ministry of Government Administration and Home Affairs starting 2014. A sharing village is a village community in a broad sense for the purpose of giving effect to sharing economy, aiming to maintain sustainability through sharing consciousness raising between village members, coexistence and cooperation. This study presented a solution to the 3 sorts of city problems, i.e. sharing village, urban generation and youth employment settlement in combination by grasping the problems of the existing sharing village, and using service design method Toolkit However, there needs to be a follow-up research through continuous verification, and improvement of problems for the time to come because the casual relationship between research subjects is extensive, and this study has limitations in the satisfaction survey for verifying the result satisfaction, which individual subjects have, consequent on the suggestion of the way of solution, and the research period as well.

• Ecology and Resilient Infrastructure
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• v.3 no.4
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• pp.322-326
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• 2016

The distribution of floodplain vegetation is mainly affected by hydrological and hydraulic processes. In this study, we investigated changes in the vegetation distribution due to flood discharge alteration, and the relationship between the vegetation types and the flood frequency during the last ten-year period in the Cheongmi-cheon Stream. Flood discharge of the Cheongmi-cheon Stream tended to decrease from 2006 to 2016. It has greatly decreased to less than $160m^3/s$ since 2013. This resulted in the settlement of Phragmites japonica to the wide sand bar at the Cheongmi-cheon Stream, even though it had sparse vegetation before 2013. The sand bar was fully covered with P. japonica in 2016. Vegetation communities in the floodplain were classified by dominant species, i.e. the annual-hygrophytic, the perennial hygrophytic and the mesophytic communities. Analysis of the relationship between the vegetation communities and the flood frequency shows the annual hygrophytes, perennial hygrophytes and the mesophytes communities distributed in the range of under 1 year, 1-10 year and over 7 year flood inundation area, respectively. In conclusion, distribution of the floodplain vegetation is closely related with the flood discharge and frequency in the Cheongmi-cheon Stream.

• Journal of architectural history
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• v.21 no.5
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• pp.33-46
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• 2012

The purpose of this study lies on reinterpreting the geography books in Joseon dynasty as records of the cities and consequently suggesting directions for further urban research. Geography books of Joseon dynasty are valuable references to understand the national policy, and imply that the focus of the contents is on the system. Especially, military system is an important concept to understand city type in that period, relationships between cities, selection of location, etc. The results of review are as following: First, military system is not a permanent fixture and therefore reflects changes in urban policies along with the history. The system suggests valuable clues on urban development as it is state-run, and closely associated with national land development. Second, counties and prefectures under jurisdiction of district called Eupchi(邑治) had cities as important as or even more important than local government such as Yeong-a(營衙), Jinbo(鎭堡), Yeok(驛: administrative cities). Such special regions need to be studied as other type of cities in Joseon dynasty by defining their architectural characteristics and roles. Third, the relationship of cities such as Eupch, Yeong-a, and Jinbo, was reorganized according to the local military system. Eupchi, administrative city, along with Yeong-a and Jinbo evolved into a military city as it became systematically organized. The characteristics of Yeok needs to be reconsidered in the context of such new inter-city relationship. Fourth, considerations which should be reviewed in the geography based on this concept can be mainly classified into architecture and landscape. This will also lay the foundation, and suggest new directions for further research for Eupchi, Yeong-a, Jinbo, and Yeok. Fifth, description of the geography looks simple at first sight, but with thorough understating on the system, there are chances to interpret objective reasoning of position and landscape in the overall flow of region, area, etc. Bongsu(烽燧), signal-fire, can be an object of comparison with geographical features and position. Furthermore, advantageous position is a historical and geographical element showing the major context of the region.

• Journal of National Security and Military Science
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• s.4
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• pp.83-118
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• 2006

This study is to develop digital leadership in a field of national defense. Today, korean society is facing the crisis of national security. But national defense leadership is not show in the circumstance of national security crisis. As you know, national defense leadership is a process that make use of influence. Which means it converges people's interest and demands well and also show people the right vision of national defense and make them to comply the policy about national security. Because of the environmental change, our national defense leadership is having a new turning point. First, international order, which is under post-cold war, raises possibility of guarantee of peace and security in international society but also, cause the increase of multiple uncertainty and small size troubles in security circumstance. In addition, Korean society is rushing into democratization and localization period by success in peaceful change of political power went through about three times. The issue of political neutralization of military is stepping into settlement but still, negative inheritance of old military regime is worrying about it. In this situation, we can't expect rise in estimation about the importance of security and military's reason for being. So, military have to give their concern to not only internal maintenance of order and control and growth of soldiers but also developing external leadership to strength influence to society and military's the reason for being. So for these alternative I'm suggesting a digital leadership of national defense which fits digital era. This digital leadership is the leadership which can accept and understand digital technology and lead the digital organization. To construct digital national defense we need a practical leadership. The leadership has to be digital leadership with digital competence that can direct vision of digital national defense and carry out the policy. A leader who ha s digital leadership can lead the digital society. The ultimate key to construct digital government, digital corporate and digital citizen depends on digital leader with digital mind. To be more specific, digital leadership has network leadership, next generation leadership, knowledge driven management leadership, innovation oriented leadership. A leader with this kind of leadership is the real person with digital leadership. From now on, to rise this, we have to build up human resource development strategy and develop educational training program.

• Journal of the Korean GEO-environmental Society
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• v.17 no.1
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• pp.13-19
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• 2016

Soft ground stabilization is needed to construct large civil facilities on the soft clay ground. Pre-loading method, which is accelerating consolidation method, is generally used to stabilize the soft ground. However, pre-loading method is required long construction period and quantities of fill material. Therefore, electro-osmosis method is used to replace pre-loading method for stabilizing the soft ground. Electro-osmosis method is disadvantageous in constructive and economic aspects because it is needed a metallic electrode. So, in order to solve the those disadvantages, plastic electrode was developed to replace metallic electrode. Plastic electrode, which is made by using nano-technology on existing Plastic Drain Board (PDB), was used to supply the electric power. In this study, therefore, the model test was conducted to confirm the effect of improvement and electrical characteristics of soft ground by spacing of plastic electrode. The result shows that the effect of improvement of soft ground was decreased up to 45% by increasing electrode spacing and electrical characteristics on the soft ground were influenced by consolidation settlement with electrode spacing.

• Journal of Practical Engineering Education
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• v.6 no.2
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• pp.119-126
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• 2014

The purpose of this study is to take a look at the cases on managing the senior human resources of business enterprises following the significant number of retirement of baby-boom generation and obligatory retirement age of 60 years of age and present the implication points in policies. With respect to the implication of the company, it would urgently require the introduction of programs with long-term point of view for career management strategy from the time of employment to the resignation, settlement of company leave system called chulhyang, expansion of wage peak system, full-time job transfer support center within the enterprise for retirement management, expansion of various consulting, conversion of paradigm on senior human resource management of top management in the enterprise level. In the government level, it is considered as required for systematic supplementation of the chulhyang system, improvement of support system for employment encouragement fund, expansion of national work capability standard-based senior employment field as well as task development, support for innovation of personnel management system, supply of management manual and implementation of job transfer education for life-time conversion period in the government level.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.21 no.3
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• pp.103-111
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• 2016

Seasonal dynamics of kelp forest-forming algae, Ecklonia cava population formed following the large-scale disturbance by Typhoon 'Bolaven' in August 2012 were investigated in Jeju Island, Korea. Morphological characteristics, recruits density, mortality rate, total density and biomass were monitored bimonthly from June 2013 to June 2015. Total and longest blade lengths, and individual weight of E. cava showed distinct seasonal trends. Stipe length increased from winter to spring, but did not show increase or reduced from summer to autumn. This indicates that morphological characteristics of E. cava are mainly affected by the change of blades. The optimal temperature for E. cava growth was about $15-18^{\circ}C$ during winter to spring while the growths were inhibited at the water temperature above $20^{\circ}C$ during summer. E. cava exhibited very low recruitment during spring-summer. However, high recruitment was observed on April 2015 when canopy cover was very low due to low density. This indicates that recruitment of E. cava was controlled not by seasonal effects but by physical factors such as canopy and space. The mortality rate of juvenile plants was highest due to their unstable settlement. By June 2015, 34 months after the disturbances, E. cava was almost recovered to the pre-disturbance population size structure. These results suggest that recovery of kelp forest following the large-scale disturbance requires a considerable period of time (more than three years). This study should provide valuable ecological information on management, restoration and protection of kelp species.

• Horticultural Science & Technology
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• v.16 no.2
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• pp.239-241
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• 1998

The experiments were carried out to improve culture efficiency of rhizome and mericlone propagation through settlement of problems occurring during culture period of temperate Cymbidium species. Shooting efficiency from rhizome of C. forrestii 'Nokwoon' was improved, when cultured in $H_3P_4$ medium (Hyponex 3+peptone 4g/L) supplemented with 170mg/L $NaH_2PO_4{\cdot}H_2O$ and 0.4mg/L Thiamin e HCl, but the other varieties were not influenced to shooting efficiency by additives. Medium in which rhizome of C. nishiuchianum 'Hodukjiwha' was cultured became less browned in $H_3P_4$ medium added with 150mg/L PVP, but the other treatments of antioxidants was failed to prevent the medium browning. Re-formation of rhizome from young shoots of C. forrestii 'Sojub', 5.5cm in length occured in $H_3P_4$ enriched with 2.0 mg/L NAA and 1.0 mg/L BA under darkness, but axillary buds were elongated in the medium with 1.0 mg/L NAA and 3.0 mg/L BA under light condition. On the other hand, rhizomes from young shoot of C. forrestii 'Seosinmae' and 'Songmae', 5.5cm and 2.5cm in length respectively were reformed in 2.0 mg/L NAA and 5.0mg/L kinetin under darkness, but multishoot from young shoot were emerged in 2.0mg/L NAA and 3.0mg/L BA.

• Journal of KIISE:Information Networking
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• v.33 no.6
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• pp.407-419
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• 2006

As substituting IPv6 network for all IPv4 network in a short time seems unattainable due to high cost and technical limitation, IPv4 and IPv6 are expected to coexist for a certain period of time. Under the co]existing environment of IPv4 and IPv6, interworking brings a number of extra security considerations even if it may have no security problem for each protocol respectively. Thus, the analysis and solutions for those various attacks toward IPv4/IPv6 interworking-related security are inevitably required for the sake of effective transition and settlement to IPv6. In this paper we carried out a proper rule of packet filtering for IPv6-in-IPv4 tunneling interworking environment to protect the IPv4/IPv6 interworking-related security attacks. Design and implementation of the packet filtering system suitable for IPv4/IPv6 tunneling environment in the form of Linux netfilter and ip6tables are also shown. Thru this study, the packet filtering system was found operating correctly ill the tunneling mechanism.