• Title/Summary/Keyword: Future Distribution System

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A Macro Analysis of Tourist Arrival in Nepal

  • PAUDEL, Tulsi;DHAKAL, Thakur;LI, Wen Ya;KIM, Yeong Gug
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.1
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    • pp.207-215
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    • 2021
  • The number of tourists visiting Nepal has shown rapid growth in recent years, and Nepal is expecting more tourist arrivals in the future. This paper, thus, attempts to analyze the tourist arrivals in Nepal and predict the number of visitors until 2025. This paper has examined the international tourist arrival trend in Nepal using the Gompertz and Logistic growth model. The international tourist arrival data from 1991 to 2018 is used to investigate international tourist arrival trends. The result of the analysis found that the Gompertz model performs a better fit than the Logistic model. The study further forecast the expected tourist arrival below one million (844,319) by 2025. Nevertheless, the government of Nepal has the goal of two million tourists in a year. The present study also discusses system dynamics scenarios for the two million potential visitors within a year. Scenario analysis shows that proper advertisement and positive word-of-mouth will be key factors in achieving a higher number of tourists. The current study could fill the gap of theoretical and empirical forecasting of tourist arrivals in the Nepalese tourism industry. Also, the study findings would be beneficial for government officers, planners and investors, and policy-makers in the Nepalese tourism industry.

A Study on the RC and PSC structure System of the Transrapid in Germany (독일자기부상열차 Transrapid의 콘크리트 교각선로구조물에 관한 연구)

  • Kang, Bo-Soon;Kim, Soo-Sam
    • Journal of the Korean Society for Railway
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    • v.1 no.1 s.1
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    • pp.20-29
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    • 1998
  • State of the art and current issues related with the RC and PSC structure system for the German magnetic levitation train "Transrapid" were investigated. The German magnetic levitation train adopted a new kind of a structure to enable high-speed transportation, which allows the use of the space over a ground. The loading from Transrapid is light-weight compared with a regular train due to load distribution to a supporting structure. Therefore, Transrapid is considered an economical and efficient transportation system, and is also an environmentally-sustainable structure. In this paper, the structural design and construction technology specific to a magnetic levitation train were discussed, and structural considerations related with an actual operation of the train were pointed out. In addition, the future research area of a magnetic levitation train was proposed.

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A study on the Safety of metro-railroad electric power feed system (도시철도 전력 급전시스템에 대한 안전성 연구)

  • Lee, Bong-Jae;Park, Weon-Chan;Kim, Woo-Seob;Jeong, Seong-Yeong
    • Proceedings of the KSR Conference
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    • 2008.06a
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    • pp.390-398
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    • 2008
  • While road traffic of sharp rise of an international oil price and capital Seoul reaches to critical point, and a use passenger drives recklessly on the subway which is a cradle of public transportation, the depths analyzes an electric power feed system regarding a ground wealth electric car line of the subway Line 2 East Section which is a long distance (Seongsu $\sim$ Gangbyeon), and future, electric power supply Feeder Distribution Center prepares to Operational Headway shortening along an ATO signal method change by feeder increase supplement, and ensure safety to an electric power supply system, and will solve inconvenience of safe operation and use passenger.

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Concrete Structure System for the German Magnetic Letic Levitation Train (독일자기부상열차의 콘크리트 구조물 시스템)

  • 강보순
    • Proceedings of the KSR Conference
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    • 2001.05a
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    • pp.393-400
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    • 2001
  • State of the art and current issues related with the RC and PSC structure system for the German magnetic levitation train were investigated. The German magnetic levitation train adopted a new kind of a structure to enable high-speed transportation, which allows the use of the space over a ground. The loading from Transrapid is light-weight compared with a regular train due to load distribution to a supporting structure. Therefore, Transrapid is considered an economical and efficient transportation system, and is also an environmentaly-sustainable structure, In this paper, the structural design and construction technology specific to a magnetic levitation train were discussed, and structural considerations related with an actual operation of the train were pointed out. In addition, the future research area of a magnetic levitation train was proposed.

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Optimal Transmission Expansion Planning Considering the Uncertainties of Power Market (전력시장 불확실성을 고려한 최적 송전시스템 확장계획)

  • Son, Min-Kyun;Kim, Jin-O
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.57 no.4
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    • pp.560-566
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    • 2008
  • Today, as the power trades between generation companies and power customer are liberalized, the uncertainty level of operated power system is rapidly increased. Therefore, transmission operators as decision makers for transmission expansion are required to establish a deliberate investment plan for effective operations of transmission facilities considering forecasted conditions of power system. This paper proposes the methodology for the optimal solution of transmission expansion in deregulated power system. The paper obtains the expected value of transmission congestion cost for various scenarios by using occurrence probability. In addition, the paper assumes that increasing rates of loads are the probability distribution and indicates the location of expanded transmission line, the time for transmission expansion with the minimum cost for the future by performing the Montecarlo simulation. To minimize the investment risk as the variance of the congestion cost, Mean-Variance Markowitz portfolio theory is applied to the optimization model by the penalty factor of the variance. By the case study, the optimal solution for transmission expansion plan considering the feature of market participants is obtained.

Analysis of Research Trends on Domestic Medical Attire (국내 의료복의 연구동향 분석)

  • Kim, Mi-Sung;Lee, Jeong-Ran
    • Journal of the Korean Society of Clothing and Textiles
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    • v.35 no.5
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    • pp.612-620
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    • 2011
  • This study provides information and suggest a direction for the future research needs of medical attire as a high value-added industry. A total of 69 studies on medical attire were categorized and analyzed for the study subject, study method, and study locations. As per the time period, until the mid-80s, almost no research on medical attire was conducted; however, the number has increased as of late. The distribution by subject was in the order of status investigation, design development, material research, textile design, and sizing system, and especially there was significant focus on wearing status and design development that has rapidly increased over the last 10 years. The distribution by target was in the order of adult patients, elderly patients, doctors, nurses, and juvenile patients. There are many studies on the wearing status and design development of adult patient attire as well as on the textile design and sizing system study for doctor's attire. The distribution by study method was in the order of survey and interview, research and development, dressing evaluation, real resources analysis, and physical property experiments. Through the results of the analysis on the study subject and target, it was found that the wearing status investigation for adult patient attire through a survey and interview was most active. The distribution by study location was in the order of Seoul, Incheon - Gyeonggi, Busan - Ulsan - Gyeongnam, and suggested that a study on patient attire in Dajeon - Chungcheong and Jeonbuk was inadequate.

Accessibility and Spatial Equity of Subway Networks in Seoul (서울시 지하철 네트워크의 접근성과 공간적 형평성)

  • Song, Yena;Lee, Keumsook;Jang, Hanwool
    • Journal of the Economic Geographical Society of Korea
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    • v.22 no.4
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    • pp.513-525
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    • 2019
  • In Seoul, the subway system has been in use since 1974 and is the most frequently used travel mode accounting for approximately 40% of passenger journeys in 2015. As such the subway system is widely adopted by people and therefore, can have great impacts on their everyday life. However, it is easily noted that transit resources are not distributed spatially uniform, in other words, not all parts of the city gain the same benefits from their networks. This study aims to examine the inequity of spatial distribution of subway networks based on accessibility. Accessibility of subway networks are calculated based on the time-distance between stations and then equity is measured using the Gini index. Resulted map of subway accessibility shows that the benefits are not evenly distributed in Seoul with a pattern of highly accessible core - less accessible periphery areas. Also the subway accessibility network has fairer distribution against the employees' distribution rather than the distribution of general population or possibly transit dependent groups.

Analysis of Urban Surface Temperature Distribution Properties Using Spatial Information Technologies (공간정보기술을 활용한 도시지역 지표온도 분포 특성 해석)

  • Lee Kwang-Jae;Jo Myung-Hee
    • Korean Journal of Remote Sensing
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    • v.20 no.6
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    • pp.397-408
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    • 2004
  • In this study, surface temperature which was extracted from Landsat TM band 6 was compared and analyzed with the AWS(Automatic Weather System) observation data for studying urban heat environment properties with possibility of remote sensing data application. In order to verification of the distribution properties of urban surface temperature, correlation analysis between surface temperature and NDVI, the distribution properties of urban surface temperature by land use/cover patterns were carried out by GIS spatial analysis techniques. The results presented that the spatial distribution of urban surface temperature was very different depending on various land use/cover patterns of surrounding areas. Also there was the reverse linear relationship between surface temperature and NDVI. These results will be worked as one of the major factors for environmentally sustainable urban planning considering the characteristics of weather environments in the near future.

Non-stationary frequency analysis of monthly maximum daily rainfall in summer season considering surface air temperature and dew-point temperature (지표면 기온 및 이슬점 온도를 고려한 여름철 월 최대 일 강수량의 비정상성 빈도해석)

  • Lee, Okjeong;Sim, Ingyeong;Kim, Sangdan
    • Journal of Wetlands Research
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    • v.20 no.4
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    • pp.338-344
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    • 2018
  • In this study, the surface air temperature (SAT) and the dew-point temperature (DPT) are applied as the covariance of the location parameter among three parameters of GEV distribution to reflect the non-stationarity of extreme rainfall due to climate change. Busan station is selected as the study site and the monthly maximum daily rainfall depth from May to October is used for analysis. Various models are constructed to select the most appropriate co-variate(SAT and DPT) function for location parameter of GEV distribution, and the model with the smallest AIC(Akaike Information Criterion) is selected as the optimal model. As a result, it is found that the non-stationary GEV distribution with co-variate of exp(DPT) is the best. The selected model is used to analyze the effect of climate change scenarios on extreme rainfall quantile. It is confirmed that the design rainfall depth is highly likely to increase as the future DPT increases.

A Study on the Management Status of Sanggoson (상매선 운영에 관한 일고찰)

  • 김수관
    • The Journal of Fisheries Business Administration
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    • v.24 no.1
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    • pp.29-44
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    • 1993
  • The Purpose of this study is to consolidate the management status of Saggoson in the Choson period by literature research, and examined latest status by field investigation. During the Choson period, there were fish distributors such as Saggoson and Kakju. Saggoson took charge of fish distribution from the fishing ground to the land, and handed over the fish to Kakju who sold over them to the whole country: This distibution system of fish was started from and adapted to the yellow-corvenia fishery of Westhern Sea. There were two resons far this. One was that these fish were. caught much from vast fishing grounds and had a very strong demand, for which professional disributors were needed. The thor was that because fishermen had very limited capital, they had to supply the money for fish production from capitalists like Kakju whom they agreed to sell fish directly to. By this time, it was thought that the fish distibution system for the Westhern Sea fishery was determined by the background and tradition. Meanwile, Saggoson, which has been working far a long time in Westhern Sea, is placed in changing circumstances. That is, small scale fishery Saggoson deals with will be getting fewer, because the big scale reclamation projects in this area threatens the fishery's existence. Also, Saggoson, presently, might be forced to become more efficient in its distribution in the future. In this situation, the management status of a Sggoson in the past and present needs to be consolidated and investigated through this study.

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