• Journal of Korea Game Society
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• v.15 no.2
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• pp.145-158
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• 2015

There are a lot of game regulations in Korea. Each scholar has invested a game regulation. But there is no research about all the game regulations. All regulations in government should be registered in Regulatory Reform Committee. So, this study researched the all game regulation in Regulatory Reform Committee and found the present state and character of game regulation in Korea. The registered game regulations are only 22. But actually, there are 44 regulations in game field. And according to legal context, there are over 60 regulations in game field. And a lot of game regulations focus on the game addiction and gambling. The differences of regulation would influence the policy trust and government trust. This result would contribute to reform the regulation of game in Korea.

• Journal of Korea Game Society
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• v.9 no.1
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• pp.43-54
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• 2009

This paper is written for analyzing the history of the Korean game legislation system. The regulation system of amusement place business that is discussed in this paper was started at the Enforcement Rule of the Amusement Place Act of 1973. It was maintained till 1999 and comes under the quickening period of the current game legislation. The legal regulation of this times was accomplished through the Amusement Place Act, the Amusement Place Business Act and the Public Health Act. The amusement place business was differentiated into the athletics facility business, the amusement facility business and the game proffer business of current legislations. The game proffer business succeeds to the kernel of the regulation system of amusement place business. Therefore, The basis of the current game legislation was constituted in the times of the regulation system of amusement place business. Two cores of the regulation system of amusement place business, (1) the separation of the amusement instrument and the speculation, (2) the regulation of a place of business, are still the important issues of the current game legislation.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.13 no.6
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• pp.289-295
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• 2013

Arcade game up until early 2000 had been highly influential and profitable industry that occupied most of the market share for the Korean domestic game industry. However, extensive and yet tightened restrictions were imposed to the industry in 2006 due to the problems of speculative games such as winning rate manipulation, serious addictiveness, and etc. This resulted in damaging healthy arcade game business and eventually caused it seemingly impossible to comeback up until now. This study is to address the current arcade game industry in Korea along with the best practices in other countries to come up with propositions for the comeback of domestic arcade game industry and improvement of competitiveness. Ultimately it is to develop diversification and flexibility and to induce new business opportunities in the domestic arcade game industry by proposing the ways to convert the bad perception and introduction of functional games.

• Korean Journal of Social Welfare
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• v.65 no.2
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• pp.231-254
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• 2013

The growth of legal and illegal gambling industry in Korea has increased the gambling accessibility. Actually, the prevalence of gambling addiction in Korea is significantly higher than those in western countries. The problems related to gambling make negative consequences in the individual, familial and socio-economical aspect. Previous studies showed that the prevalence of problem gambling by college students was much higher than that by adolescence and adult due to the nature of psychosocial developmental stage. The purpose of this study is to explore the path of problem gambling among college students based on the Jacob's general theory of addiction. Participants are 366 male college students who have experienced on gambling behavior. The main results are as follows. First, the problem gambling prevalence of participants is 14%. Second, statistical analysis using structural equation modeling shows the significant pathway among psychological vulnerability, needs to escape and problem gambling. Instead, the physiological vulnerability is not significant on the path to problem gambling. On the basis of these findings, the implications for social welfare prevention and intervention to college students are discussed.

• Journal of the Korean Society of Costume
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• v.61 no.3
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• pp.71-82
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• 2011

This study set out to investigate the identity of everyday headgear, which is often found in many paintings of Tongshinsa, Joseon diplomatic missions to Japan, in the 18th century. That resembles Yu-geon儒巾, but on the top of the headgear are lappets like a roof. The study proceeded as follows: 1) The painting of Tongshjnsa parade in 1711 was used to analyze wearers of everyday headgear because titles of position are shown for each one. 2) Personal records of Tongshinsa in the 18th century were analyzed to examine the cases of everyday headgear. 3) Cases of everyday headgear in literature around the 18th century were examined. Those researches revealed three findings: 1) The names of everyday headgear with a roof shaped top are Gohu-gwan高厚冠 and Yeonyeop-gwan蓮葉冠. 2) Among Tongshinsa, wearers of Gohu-gwan or Yeonyeop-gwan are medical staff, interpreters, painters, and secretaries. However, it doesn't seem to have been distinction between the two types according to social class and position. 3) People wore everyday headgear, that resembled the two types in appearance, such as Mjnja-geon民字巾, Sunyang-geon純陽巾, Hwayang-geon華陽巾, Jeon-geon戰巾, or Jang-geon將巾 in China and Joseon around the 18th century. Among them, Sunyang-geon and Hwayang-geon seem to have had the closest relationship with Gohu-gwan and Yeonyeop-gwan in terms of shape and character of wearers. The analysis of the research findings led to the two following conclusions: 1) Gohu-gwan and Yeonyeop-gwan were worn as one of everyday headgear to represent appearances of a scholar. 2) Gohu-gwan and Yeonyeop-gwan could be changed versions of the similar everyday headgear or different names of them.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.13 no.5
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• pp.173-181
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• 1993

Under natural conditions, rivers do not in general take straight courses but instead take winding courses. This is known as meandering of rivers. Meandering of rivers are so complicated because of the mutual interactions between flow and movable boundaries. In quantitative information, it is important to predict the future location of a river channel(channel migration) because in selecting a bridge site or a location of a road. It may be valuable to know the future impact of a nearby river on those structures. When the prediction model of the migration of channel is used in domestic rivers with high coefficient of river regime, it is rational to use the periodical dominant discharge (PDD), which is named firstly by the author, instead of the average discharge. According to the analysis of the erosion coefficient, the mean deviation on the channel migration, and the bed scour factor, it can bring shedding light on the fact that the discharge is one of the dominant components in channel migration. In project area, the discharge that can shift the channel is slightly greater than 6,000CMS. The prediction model of the migration of channel estimated the erosion coefficient, $E_0$ by the data from the South Han River. This estimated value from the South Han River was also used to predict the migration of the South Han River in year 2000.

• Journal of Korea Water Resources Association
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• v.37 no.1
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• pp.1-11
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• 2004

The purpose of this study consists in introducing and examining the previous river classification systems applicable to the river improvement technique including geomorphological considerations, and developing a new system using the geomorphological criteria which represent the morphology of rivers. A newly developed system uses the channel reach as a classifying unit which is delineated by upstream and downstream tributaries. It adopts three basic geomorphological criteria for classification: 1) valley-floor width index(VI) reflecting the confinement of the channel in the valley, 2) sinuosity(P) which expresses the channel planform, and 3) bed material($d_{50}$). The system is composed of 24 stream types. Concerning every stream type, valley forms, principal bed forms and fluvial processes with disturbance elements are briefly presented. Finally, the applicability of this system to the Chungmi Stream and the Imjin River data in comparison with that of Rosgen system is examined.

• Journal of Korea Water Resources Association
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• v.49 no.1
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• pp.73-81
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• 2016

This study investigates the development of lower channels and sediment sorting processes in the vegetated channels with the mixed sediment. The sediment discharges fluctuate with time and decrease with vegetation density. The bed changes with irregular patterns, and the sediment particles in the vegetated zone at the surface of bed are fine. The dimensionless geometric mean decreases with vegetation density. The fine sediment particles are trapped by vegetation, and the bed between main steam and vegetated zone increases. Moreover, the particle sizes are distributed irregularly near the zone. The hiding functions decrease with dimensionless particle size. However, the functions increase with vegetation density, which is confirmed by decreasing sediment discharge with vegetation. The lower channel is stable and the migration decreases in the condition of $0.5tems/cm^2$. However, the migration of the lower channel in the condition of $0.7stems/cm^2$ increases due to the increased sinuosity and new generated channels in the sedimentated vegetation zone.

• Proceedings of the Korea Water Resources Association Conference
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• 2011.05a
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• pp.409-413
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• 2011

유효유량이란 수년에 걸쳐 연 유사량의 대부분을 이동시키는 유량으로 정의되며 유량-빈도분포곡선과 유사량 곡선을 이용하여 산정된다. 유효유량은 하도를 설계하거나 기존 하도의 안정성을 평가하는데 있어 기준유량이 될 수 있는 필수적인 요소이지만, 현재 국내의 경우 이에 대한 분석이 충분히 수행되지 않아 특정한 패턴을 도출하기 힘든 실정이다. 특히 우리나라의 하천은 연강수량의 약 70%가 여름철에 집중되는 기후적 특성의 영향으로 하상계수가 미국과 유럽에 비해 10에서 25배 크게 나타나 외국사례를 국내에 적용하는데 어려움이 있다. 따라서 본 연구에서는 구하도복원이 계획 또는 진행되어 유효유량 산정이 필수적이며 하상계수가 매우 큰 만경강, 청미천, 함평천을 대상하천으로 선정하여 유효 유량을 산정하고 수리적, 지형학적 특성과의 연관성을 분석하고자 한다. 유효유량을 계산하는 데 있어 가장 큰 영향을 미치는 요소는 유량빈도 간격 수와 유량빈도 간격의 설정이다. 따라서 본 연구에서는 유효유량 산정을 위한 유량 간격으로 산술등간격(Arithmeic Bin)과 로그간격(Logarithmic Bin)을 모두 사용하였으며 각각 간격수가 25개, 50개, 100개인 경우에 대해 유효유량을 계산하여 비교하였다. 산술등간격과 로그간격을 사용한 유효유량 산정결과 중 최대, 최소값을 제외한 나머지의 평균값을 각 대상하천의 유효유량으로 선정하였다. 수리적, 지형학적 특성에 따른 대상하천 분석 결과 하상계수가 클수록 유효유량이 크게 산정되는 것으로 나타났으며 하상 경사, 하상토의 중앙입경 크기와 비례하는 것으로 나타났다. 반면에 수심-하폭비와 사행도의 경우 유효유량과 반비례하는 것으로 나타났다.

• Ecology and Resilient Infrastructure
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• v.6 no.4
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• pp.287-294
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• 2019

This study investigated longitudinal changes in riverbed materials properties and temporal alteration of river channel geomorphology in the Geum River basin, where two multipurpose dams(Yongdam Dam and Daecheong Dam) were built in upstream area. We carried out grain size distribution analyses and measured soil organic matter contents of riverbed materials taken at the upper and lower sites of the two large dams. We also estimated the channel width, bar area and vegetation encroachment using the oldest map and aerial photographs taken before and after the construction of the dams. The results can contribute to increasing understandings of dam induced habitat alteration in river ecosystem.