• 기술사
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• 제41권3호
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• pp.45-49
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• 2008

Considering domestic situation such as economical crisis, $CO_2$ exhaust amount limit based on the Climatic Change Convention, sky-rocketed oil prices. 97% of energy import from abroad, and import sum reaching up to 20% of entire import, we need to invest new recycle energy and future energy development at a full blast.

• 산경연구논집
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• 제8권7호
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• pp.7-12
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• 2017

Purpose - This research examines the short-run and long-run effect of external shocks (oil price and exchange rate) on domestic food price in Indonesia. Research design, data, and methodology - Three variables are used in this research. The variables are food price index, Rupiah's exchange rate of Indonesia, and crude oil price from 1998 until 2015 using Vector Error Correction Model (VECM). Results - The increasing of oil price and the depreciation of Rupiah's rate push the domestic food price in long-run, but do not impact significantly in short- term. The response of food price to oil prices shock and exchange rate shock are positive and persistent throughout the entire sample period. The exchange rate and oil price shocks have a small proportion explaining for the fluctuations of food price index but increasing over time. Conclusions - The policymaker should concern on solving the problem of oil price increase and depreciation of exchange rate on Indonesia's food price as they are important factors that can affect the price stability. The government should not rely on food imports because the price is strongly influenced by the movements in the exchange rate.

• 한국해양공학회지
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• 제26권6호
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• pp.86-92
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• 2012

An exploration well is drilled where oil or gas potential is shown by a seismic survey and interpretation. With the advance of drilling technology, most of the easily accessible oil had been developed by the end of the 20th century. To satisfy the ever increasing demand for oil, and bolstered by high oil prices, the major oil companies started to drill in deep water, which requires a deep offshore drilling unit. Offshore drilling units are generally classified by their maximum operating water depth. Many semi-submersible rigs have been purpose-designed for the drilling industry as the allowable drilling water depth has become deeper by the developed technics since the first semi-submersible was launched in 1963. Semi-submersible rigs are commonly used for shallow to deep water up to 3,000 m. Drilling equipment such as a top drive, blowout preventer, drawworks and power system, mud circulation system, and subsea wellhead system are explained to help with an understanding of offshore drilling procedures in the oil and gas fields. The objective of this paper is to introduce the main components of a semi-submersible rig and, by doing so, to raise the awareness of offshore drilling, which accounts for over 30% of the total oil production and will continue to increase.

• The Journal of Asian Finance, Economics and Business
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• 제8권5호
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• pp.523-531
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• 2021

Vietnam's Oil and gas industry make a significant contribution to the Gross Domestic Product of Vietnam. The ongoing COVID-19 pandemic has hit every industry hard, but perhaps the one industry which has taken the biggest hit is the global oil and gas industry. The purpose of this article is to examine how the COVID-19 pandemic affects the share price of the Vietnam Oil and Gas industry. The event study method applied to Oil and Gas industry index data around three event days includes: (i) The date Vietnam recognized the first patient to be COVID-19 positive was January 23, 2020; (ii) The second outbreak of COVID-19 infection in the community began on March 6, 2020; (iii) The date (30/3/2020) when Vietnam announced the COVID-19 epidemic in the whole territory. This study found that the share price of the Vietnam Oil and Gas industry responded positively after the event (iii) which is manifested by the cumulative abnormal return of CAR (0; 3] = 3.8% and statistically significant at 5 %. In the study, event (ii) has the most negative and strong impact on Oil and Gas stock prices. Events (i) favor negative effects, events (iii) favor positive effects, but abnormal return change sign quickly from positive to negative after the event date and statistically significant shows the change on investors' psychology.

• 에너지공학
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• 제16권2호
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• pp.58-63
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• 2007

최근 신 고유가 시대를 맞이하여 천연가스를 이용한 합성석유 제조기술 개발의 중요성이 점차로 부각되고 있는 상황이다. GTL(Gas-to-Liquids) 공청은 현재의 고유가 상황에서 경쟁력 있는 사업 분야를 제공 할 것으로 분석되고, GTL 제품은 환경오염물질이 거의 없어 21 세기의 환경규제 강화 추세에 효과적으로 대응할 수 있는 청정연료이다. GTL 공정은 크게 천연가스의 주성분인 메탄의 리포밍 반응을 거쳐 합성가스 ($CO+H_{2}$)를 제조하는 단계, 이 합성가스로부터 FT 합성반응을 통하여 액체 합성원유를 제조하는 단계, 합성원유를 개질하는 단계 (수첨분해/수첨이성질화)로 이루어진다. 본 총설에서는 GTL 기술의 개요와 세계적인 개발 동향을 천연가스 reforming 기술과 FT 합성유 제조 기술에 중점을 두고서 소개하고자 한다.

• 한국생산제조학회지
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• 제22권3호
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• pp.364-371
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• 2013

Because of the increases in international oil prices and the level of global warming, the automotive industry has much interest in developing green cars with high fuel efficiencies. In addition, researchers in Korea are actively responding to high oil prices and $CO_2$ emission regulations in many ways. One example is, the multi-mode hybrid system, which is being studied to improve its performance. Because a multi-mode hybrid system is able to overcome the weaknesses of a system that uses simple planetary gears, excellent fuel efficiency and driving performances are the key features of the system. This paper analyzes the driving performance of the power-train system of GM-2MT70, which consists of one engine, two electric motors, one simple planetary gear, one double planetary gear, two clutches, and two brakes. The driving performance of the system's steady state is analyzed using performance modeling. The dynamic performance is analyzed using Matlab Simulink.

• Asian Journal of Business Environment
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• 제7권4호
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• pp.5-9
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• 2017

Purpose - Many countries rely on currency depreciation or debt-financed government spending to stimulate their economies. Currency depreciation tends to increase net exports and aggregate demand but reduce short-run aggregate supply due to higher import costs. Debt-financed government spending increases aggregate demand, but the crowding-out effect due to a higher real interest rate may reduce private spending and aggregate demand. Therefore, the net impact of currency depreciation or debt-financed government spending on equilibrium real GDP is unclear. Research design, data, and methodology - This paper examines potential impacts of real depreciation of the ringgit, more government debt as a percent of GDP and other relevant macroeconomic variables on aggregate output in Malaysia. Results - Applying the AD/AS model, this paper finds that aggregate output in Malaysia is positively associated with real appreciation during 2005.Q3-2010.Q3, real depreciation during 2010.Q4-2016.Q1, the debt-to-GDP ratio and the real stock price, negatively affected by the real lending rate and inflation expectations, and is not influenced by the real oil price. Conclusions - Real depreciation of the ringgit after 2010. Q3 or sustainable expansionary fiscal policy would be beneficial to the economy.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2008년도 하계학술발표대회 논문집
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• pp.436-439
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• 2008

This paper is to research the heat transfer performance of the sintered pipe. Recently, oil prices is to be 127 $ per barrel, we expect higher costs this summer. We promote alternative fuels, after oil and gasoline prices reached record highs. The governments have made efforts to avoid future crisis by continuing the move toward renewable energy and energy saving. In this paper, we have fabricated a sintered pipe, the heat transfer performance of sintered pipe is achieved experimentally. The pipe is copper tube of outer diameter of 15.88 mm, the length of the pipe is 800 mm. Based on the experimental results, it is shown the overall heat transfer coefficient of sintered pipe is increased as compared with that of a straight pipe, is equal as compared with that of a spiral pipe. The overall heat transfer coefficient was $0.075{\sim}0.09\;kW/^{\circ}C$

• 한국항공운항학회지
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• 제29권2호
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• pp.106-110
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• 2021

In this study, the main factors affecting the number of passengers and cargo volume transported by air between Korea, China and Japan over the past 20 years are to be identified. For the analysis, data from three countries' GDP and per capita as well as exchange rates and international oil prices were used, and OLS multiple regression analysis and fixed effect analysis were performed. As a result of the analysis, both the number of passengers and cargo volume transported by air showed a negative (-) direction for GDP, which represents the country's economic power, and a positive (+) direction, for per capita GDP, which represents income level. And the increase in the exchange rate between China and Japan acted in a positive (+) direction on the increase in the number of passengers, and the effect of oil prices was found to be limited.

• 자원ㆍ환경경제연구
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• 제22권4호
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• pp.727-757
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• 2013

이 연구는 Air France와 KLM의 실제 거래자료를 이용해 항공화물운송사업자들이 공동으로 부과한 유류할증료가 항공화물운임에 미친 영향을 실증분석하였다. 그 결과 유류할증료 부과가 '유류할증료가 없었다면 형성되었을 가격' 보다 높은 가격을 초래하지 않았으며 오히려 담합기간 중에 KLM이 실제 부과한 최종요금이 그 전후 기간에 비해 유의하게 낮은 것으로 나타났다. 이 연구는 추가적으로 실제의 유가변동과 유류할증료 간의 관계 및 유류할증료가 기본운임에 미친 영향도 분석하였다. 유가변동과 유류할증료 간의 관계에 대한 분석결과는 담합기간 동안 항공유 가격이 급등하였음에도 실제 부과된 유류할증료는 건교부의 엄격한 통제로 인해 급등하는 유가를 제대로 반영하지 못했다는 것을 보여준다. 이 기간 동안 유가상승에 대한 유류할증료의 탄력성도 1을 크게 하회하는 것으로 나타났다. 또한, KLM와 Air France의 담합기간 중의 자료를 이용해 유류할증료와 기본운임 간의 관계를 회귀분석한 결과, 유류할증료의 증가는 기본운임의 하락을 초래하는 것으로 나타났다.