• The Journal of Asian Finance, Economics and Business
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• 제6권4호
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• pp.99-107
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• 2019

This paper is intended to study the relationship between state budget revenue and economic growth in Vietnam. The ordinary least-squares regression method is used with secondary data collected from General Statistics Office of Vietnam in the period of 2000-2017. Vietnamese state budget revenue includes domestic revenue (excluding oil revenue), oil revenue, custom duty revenue, and grants. The testing result shows that the state budget revenue has a positive correlation with economic growth of Vietnam. However, the components of state budget revenue have different levels of impact on the economy. Domestic revenue and oil revenue are statistically significant and have a positive effect on the economy, while the impact of custom duty revenue and grants on the economy is invisible. Vietnamese state budget revenue should be restructured toward the sustainability and by way of boosting the economy, specifically: (1) Increase the proportion of domestic revenue to state budget revenue and domestic revenue should be based on the ground of production and business activities rather than collection from state-owned assets; (2) Reduce the proportion of custom duty revenue and grants to state budget revenue; (3) Keep the volume and ratio of oil revenue in state budget revenue at an appropriate proportion.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1996년도 Proceedings of the Korea Automatic Control Conference, 11th (KACC); Pohang, Korea; 24-26 Oct. 1996
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• pp.417-421
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• 1996

A new concept of 22.9kV class revenue metering system based on the optical sensing technique was designed and implemented. This paper reports on the performance of a 22.9kV class three phase optical current/voltage metering scheme and three tariff metering system. This optoelectronic system was designed and developed to advance the state of the art in revenue metering. This paper deals with the characteristics of designed optical CPT (Current and Potential Transformer) and optoelectronic demand meter. The extensive field evaluation of the developed system with the existing oil filled transformer and solid state metering pair is undertaking. Upto now the operation of the optical revenue metering system under the field condition compares favorably with the existing system.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2017년도 춘계학술대회
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• pp.666-669
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• 2017

계측되어 얻어진 유량 값이 잘 보존되고 관리되면 효율적으로 관리가 가능하나, 현행 유수율(유입량, 유출량, 무수량) 업무에서는 유량계의 용도별로 각각의 시스템에서 관리되기 때문에 일괄 자료파악이 어려운 실정이다. 현행 시스템의 문제점을 분석하고, 문제해결을 위한 유수율 통합관리 시스템을 개발, 적용하였으며 이에 따른 효과분석을 제시하였다. 유수율 통합시스템을 통하여 체계적이고 효율적인 유수율 관리와 담당자 업무경감 등을 목적으로 유수율 향상에 기여할 것으로 판단된다.

• 한국항해항만학회지
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• 제39권2호
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• pp.89-97
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• 2015

The rising spate of piracy in Nigeria's territorial waters has become a burden on the economic development of the country. It has adversely affected the exportation of crude oil, which is the mainstay of the country's economy. Pirates target and hijack vessels carrying oil and gas, thus reducing the revenue accruable to the country from selling these resources. Piracy also affects the fishing industry which is another source of revenue to the country. Nigeria, as an import dependent country, relies on the importation of finished goods, and this is seriously affected by piracy. This study briefly examines the root causes of piracy in Nigeria. Further, the study interrogates the effects of piracy, identifies the challenges in the suppression of the crime and proffers suggestions toward suppressing the crime in the country. Against this backdrop, the study argues, among other things, that an expansive definition of piracy is key in the fight against this maritime crime in Nigeria, because the present legal regime is restrictive and limited in scope, thus, it does not reflect the modern piratical acts. More importantly, Nigeria must criminalise piracy in its domestic law in other to police its territorial waters, capture and prosecute pirates in its local courts.

• 경영과학
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• 제16권1호
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• pp.51-61
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• 1999

Pipeline is an important transportation mode for ail products. The popeline transportation and storage rates affect the popeline usage, and the popeline usage also affects the transportation revenue and operating costs of the popeline. The purpose of our study is to develop a decision support system simulating popeline transportation and storage rates for maximizing the utilization and profitability of the oil pipeline and apply it to the real situation. To do this, a simulation model to help the decision maker decide the rates of the oil pipeline is first proposed. Second, a simulation program is developed, which enables the user to evaluate the various scenarios of oil transportation and storage rates. Finally, this program is applied to the case study of oil industry in korea.

• 자원ㆍ환경경제연구
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• 제11권3호
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• pp.493-513
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• 2002

This empirical study analyzed the policy effect of deregulation in oil product prices. To investigate the effect of deregulation, it is tested whether gasoline prices are determined by market power. Also, the role of government in gasoline tax system is investigated. The empirical analysis has been done by using error correction model. The major findings are as follows. First of all, no significant empirical evidence is found to support that the deregulation affects the determination of gasoline prices. Secondly, the short-term CIF elasticity is estimated to be 0.14. This finding implies that if CIF increases 10%, the gasoline prices increase 1.4%. Finally, the investigation on government role in deregulated market shows that the government has still exercise the power of control through the tax system. For example, the government is seemed to increase the gasoline price more than the increase amount caused by the international oil prices and the exchange rates, because of the intention to achieve the internal revenue increases and lead to gasoline conservation.

• 한국항해학회지
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• 제14권1호
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• pp.21-38
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• 1990

This paper discusses the various modes of operations of cargo ships which are liner operations, tramp shipping and industrial operations, and mathematical programming, simulation , and heuristic method that can be used to solve ships routing and scheduling problems for each of these operations. In particular, this paper put emphasis on a crude oil tanker scheduling problem. The problem is to achieve an optimal sequence of cargoes or an optimal schedule for each ship in a given fleet during a given period. Each cargo is characterized by its type, size, loading and discharging ports, loading and discharging dates, cost, and revenue. Our approach is to enumerate all feasible candidate schedate schedules for each ship, where a candidate schedule specifies a set of cargoes that can be feasibly carried by a ship within the planning horizon , together with loading and discharging dates for each cargo in the set. Provided that candidate schedules have been generated for each ship, the problem of choosing from these an optimal schedule for each ship is formulated as a set partitioning problem, a set packing problem, and a integer generalized network problem respectively. We write the PASCAL programs for schedule generator and apply our approach to the crude oil tanker scheduling problem similar to a realistic system.

• 자원ㆍ환경경제연구
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• 제26권2호
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• pp.257-286
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• 2017

본 연구는 에너지세제개편이 종료된 2007년부터 매년 유류세의 종량세액을 소비자물가지수에 연동하여 자동조정해주었다는 가상적인 상황을 전제로 수송용 연료유(휘발유, 경유)의 소비량, 세부담(세수) 및 유류세의 소득재분배 효과에 미치는 영향을 추정 분석하였다. 일반균형적 관점에서 선형지출체계 수요함수를 설정하고 휘발유와 경유의 가격탄력성을 추정하였다. 2014년 가계동향조사원시자료를 이용하여 모의실험을 통해 추정한 결과, 유류세 물가연동제가 도입되었다면 2014년 현재 일반가계의 휘발유, 경유의 소비량은 각각 8.8%와 5.4% 축소되었을 것으로 분석되었다. 일반적으로 소비세는 소득역진적이어서 부(-)의 소득재분배 효과를 나타내는 경우가 많지만 수송용 유류세는 소득분배구조를 소폭 개선시키는 것으로 분석되었다. 물가연동세제의 도입을 유류 소비량을 감소시키지만 세율인상 효과가 소비감소 효과를 압도하여 유류세 세수는 11.9% 증가하는 것으로 추정되었다. 유류세 부담의 누진도는 미약하게 약화되지만, 세수증가 효과가 이를 압도하여 소득재분배 효과는 소폭 증가($+0.12%{\rightarrow}+0.13%$)하는 것으로 분석되었다.

• 설비공학논문집
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• 제22권4호
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• pp.181-188
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• 2010

The objectives of this study are to analyze the possibility of the landfill gas recycling for the middle and small scale landfills where the recycling facilities are not installed in Korea. It was found that the power generation plants by landfill gas were installed in domestic 15 landfills and the gas engine generation was adopted in 14 places. As the result of economic analysis, the landfill gas recycling is found to be available in 12 places and CERs of 153,693 $tCO_{2e}$ can be secured per year. Through the reduction of the air pollutants and VOCs, the social benefits of 730 million won accrue per year. Also, the power production of 18.8 GWh will substitute the crude oil imports of 4,048 TOE and the revenue of 2.49 billion won is expected to power trading. It is also found that the power generation plants by landfill gas will give the social benefits such as the reduction of the environmental problems and the substitution effect of crude oil imports.

• 한국소음진동공학회논문집
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• 제27권1호
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• pp.14-19
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• 2017

Fuel oil consumption cost varies depending on every ship operation and this roughly amounts to 70 % of shipping companies' total revenue. As such, efforts towards improved fuel economy are being pursued. An annual 1 % reduction in fuel consumption is perceived to result in saving tens million US dollars on the global fleet operation. One approach is the application of power take-off configurations which are seen to increase fuel oil economy and are suitable for power generation. In this study, the dynamic properties of a shaft generator coupled on a 10S90ME main engine of an 18 600 TEU container vessel is presented. The vibratory torque and angular velocity variation was examined through theoretical analysis and actual vibration measurement. The result of the study suggests a review on existing classification rules for generator design and the lowering of vibratory torque and angular velocity variation guideline.