• Journal of Korea Game Society
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• v.13 no.3
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• pp.69-76
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• 2013

The financial value of early stage start-up has a tendency to depend more on the non-financial factors, but these are not efficiently reflected in the traditional valuation models. Therefore, most of valuation practices for early stage start-ups heavily relied on the guts of experts. To remedy this, this study suggests a model to directly reflect the non-financial factors especially for the real options approach. Actual process of valuation and the adjustment way were developed considering the characteristics of early stage start-ups in the game industry.

• KIEAE Journal
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• v.14 no.6
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• pp.31-41
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• 2014

This study aims to POE(Post-Occupancy Evaluation) analyze the characteristics of residents and their demands on community facilities by types of supplying housing, which can be the basis for making the housing regulations. The following five types of housing are considered in this study ; 1) National Rental Housing(L), 2) Public Rental Housing(L), 3) Permanent Rental Housing(S), 4) Public Rental Housing(S), 5) Private Rental Housing. We surveyed 527 residents from 20 housing complexes in those four housing types. First, each housing type has different household characteristics. Second, the criteria for housing selection are different. Third, local community activities and satisfaction are different in each housing type. Lastly, residents are generally satisfied with service facilities, but their satisfaction level and the facilities they need are different depending on housing type, accordingly. The housing community space plan be should be improved to the amount of areas of community facilities.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.10 no.4
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• pp.121-126
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• 2010

Regarding HEMP has been studied as few thousand of paper by major nuclear bomb holding countries with USA for the self protection against nuclear bomb attract. Major HEMP protection facilities are consist of the shielding, filtering, grounding and high voltage protection circuits. Shielding room construction required a highest cost among the key protective facilities. Most of a theoretical formulas listed on the paper and related books has a little correlations in the certain frequency band between the theoretical formulas and field measuring results. For the reasons we proposed the advanced new theoretical formulas and developed the computer simulation S/W as enough as apply to the cost effective shielding room design for HEMP considering the various structural constants.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.20 no.10
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• pp.895-900
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• 2007

Partial discharge(PD) test can be performed either when the rotating machine is not operating(off-line) or during normal machine operation(on-line). This paper presents an on-line and off-line PD test on a large hydro-generator and induction motor using the same PD acquisition system(PDAS) and ceramic coupler(CC) sensor. PD signal characteristics of CC sensor proved similar with that of epoxy mica coupler(EMC) sensor as a results of PD test for simulated defect winding and frequency response test. A comparison of on-line and off-line PD test for PD characteristic parameters-phase resolved PD(PRPD), maximum PD value(Qmax) and PD occurrence energy(POE)-indicated that on-line PD test could reliably and effectively diagnose insulation conditions which were verified by off-line PD test.

• Journal of Korean Society of Water and Wastewater
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• v.28 no.1
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• pp.111-124
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• 2014

Decentralized water supply systems, treating the water in users'vicinity, cutting down the distribution system, utilizing the alternative water resources(rainwater harvesting, water reclamation and reuse and so on.) and saving energy and other resources, could be categorized into POU(Point-Of-Use), POE(Point-Of-Entry) and community small scale system. From the literature review, we could thought that decentralized water supply system and hybrid system(integrating centralized and decentralized water supply system within urban water management) might have strengthening comparative advantages to centralized system with respect to: (1) water security, (2) sustainability, (3) economical affordability. Even though it is difficult to derive and quantify direct benefit advantages from decentralized and hybrid system in comparison with centralized system, (1) operational cost reduction, (2) assurance for safe and stability water supply and (3) greenhouse gas reduction can be expected from successful establishment of the former.

• Korean Institute of Interior Design Journal
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• v.13 no.5
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• pp.98-105
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• 2004

The importance of environment has been increased recently, and it has affected architectural area especially no less than any other area. This study performed POE on the housing sectors, which have been approved as ‘The Environment-Friendly Housing Certification (KOEAM 2000)’, to evaluate the recognition and value of the residents. The study employed survey method and the items of questionnaire are based on the detailed criteria of the ‘The Environment-Friendly Housing Certification (KOEAM 2000)’. Through the analysis of investigated substance, this study compared the differences between the quantitative satisfaction and the qualitative satisfaction of the residents, and investigated the differences between the degree of satisfaction and the degree of importance, and the preference to the evaluation criteria. As a result, it is deduced that the qualitative aspects rather than the quantitative aspects affects the satisfaction of residents more in some criteria. It is also investigated that the awareness and requirements level of residents varies according to the demographics, and the differences between the evaluation criteria of the residents and the certification system is also deduced. Through this analysis, this study tried to find the supplemental points of the certification system which pursue the sustainable development and accommodate the requirements of residents.

• Proceedings of the KIEE Conference
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• 2007.04a
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• pp.55-57
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• 2007

$CO_2$ laser sees that is most suitable to get this effect through minimum formation damage and advantage that is root enemy of effect that happen in minimum cellular tissue depth of 0.1mm is stable living body organization or internal organs institution. Formation damage by ten can be related in formation's kind or energy density, length of evaporation time. If shorten evaporation time, surroundings cellular thermal damage 200 - because happen within 400ums laser beam in rain focus sacred ground surroundings cellular, tissue without vitiation me by evaporation Poe of very small floor as is clean steam can. Application is possible to vulva cuticle cousins by a paternal aunt quantity, uterine cancer, cuticle tumor by laser system that $CO_2$ laser gets into standard in obstetrics and gynecology application. Because effect that super pulse output is ten enemies of laser if uniformity one pulse durations are short almost is decreased, most of all pulse module special quality of pulse style $CO_2$ laser for obstetrics and gynecology mode stabilization by weight very, in this research to get into short pulse duration and higher frequency density, do switching by high frequency in DC-DC Converter output DC's ripple high frequency to be changed, high frequency done current ripple amount of condenser for output filter greatly reduce can. Ripple of output approximately to Zero realization applying possible inductor realization through a special quality experiment do.

• Journal of the Korean Institute of Educational Facilities
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• v.16 no.2
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• pp.27-36
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• 2009

The Korean government has recently implemented the public policy, so-called the Dormitory-based Public High-School Operation. The policy aims at providing the community-based high-quality education for the high-school students in the regional areas including agricultural, sea-side, and mountainous territories. Since the schools will be open for 24 hours a day during a whole year, they need to develop educational programs after regular school hours and violence prevention systems to maintain stable surroundings for study. In doing so, it is required for the schools to set up a systematic dormitory operation & administration program reflecting the demands of the dormitory users. Most of the schools, however, have not experienced operating a dormitory, thereby do not have any clues to successfully build the dormitory system. The main objective of this research is not only to provide the information on the demands of the dormitory users and their concerns with the demands but also to suggest guidelines to better build the system through conducting questionnaire survey to the students in a currently operated dormitory-based high-school.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 2003.04a
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• pp.418-421
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• 2003

Surfactant enhanced in-situ soil flushing was peformed to remediate the soil and groundwater at an oil contaminated site, and the effluent solution was treated by the chemical treatment process including DAF(Dissolved Air Flotation). A section from the contaminated site(4.5m$\times$4.5m$\times$6.0m) was selected for the research, which was composed of heterogeneous sandy and silt-sandy soils with average Hydraulic conductivity of 2.0$\times$10$^{-4}$ cm/sec. Two percent of sorbitan monooleate(POE 20) and 0.07% of iso-prophyl alcohol were mixed for the surfactant solution and 3 pore volumes of surfactant solution were injected to remove oil from the contaminant section. Four injection wells and two extraction wells were built in the section to flush surfactant solution. Water samples taken from extraction wells and the storage tank were analyzed by GC(gas-chromatography) for TPH concentration with different time. Five pore volumes of solution were extracted while TPH concentration in soil and groundwater at the section were below the Waste Water Discharge Limit(WWDL). Total 18.5kg of oil (TPH) was removed from the section. The concentration of heavy metals in the effluent solution also increased with the increase of TPH concentration, suggesting that the surfactant enhanced in-situ flushing be available to remove not only oil but heavy metals from contaminated sites. Results suggest that in-situ soil flushing and chemical treatment process including DAF could be a successful process to remediate contaminated sites distributed in Korea.

• KIEAE Journal
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• v.14 no.3
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• pp.127-132
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• 2014

Since 1970s, the metropolitan-cities in Korea constructed enormous capacities of apartment housings to settle the inferior housing conditions. However, from a stand point of children, the formality of the apartment housing is too tight and specialized to give children enough space to play in and the location and physical area of that is bad and insufficient either. In this study, progressive method for the playground is offered to improve the conditions of playground in apartment housings through the examinations of the utilization of the playground and the problems of that. As a result, three of items for the improvement of the playgrounds are suggested. First, re-interventions for the rules which prescribe the area of the playgrounds are needed. Second, the locations of the playgrounds should be based on the children's playing activities and parents' profitable apprehend. Third, the access to the playgrounds should be based on the children's conveniences. In order to perform these recommended items, objective POE data for the playgrounds through the systematic examinations are also needed in addition to the abilities of the planners.