نتایج جستجو برای: petroleum demand

تعداد نتایج: 162097  

Journal: :African health sciences 2014
Olufunsho Awodele Ademola A Sulayman Alade Akintonwa

BACKGROUND Hydrocarbons which are among the major components of petroleum products are considered toxic and have been implicated in a number of human diseases. Tanker drivers are continuously exposed to hydrocarbons by inhalation and most of these drivers do not use protective devices to prevent inhalation of petroleum products; nor do they visit hospital regularly for routine check-up. OBJEC...

1995

Artificial neural networks are rapidly gaining popularity. This paper discusses the importance of this new tool to petroleum engineers, and the advantages that this computing process has over other conventional methods. The mechanics by which neural networks achieve their objective are also discussed. Artificial neural networks can assist petroleum engineers in solving some fundamental petroleu...

Journal: :Analytical chemistry 2002
Kuangnan Qian Gary J Dechert

Although mass spectrometry has been studied extensively in the past 50 years for analysis of petroleum and other fossil fuels, comprehensive characterization of total petroleum composition across a wide boiling range remains a challenge. In this work, we report our efforts in combining GC separation, field Ionization, and time-of-flight high-resolution mass spectrometry (GC-FI-TOF HRMS) for det...

2010
J. Marvin Herndon

Two recent discoveries have greatly impacted understanding relevant to the origination and emplacement of petroleum and natural gas deposits. One discovery, pertaining to hydrocarbon formation from methane broadens significantly potential regions where abiotic petroleum and natural gas deposits might be found. The other, discovery of the physical impossibility of Earth-mantle convection, restri...

Journal: :Applied sciences 2022

The demand for technological and industrial change has become heavily dependent on the availability use of petroleum products as a source energy socio-economic development. Notwithstanding, petrochemical are strongly related to global economic activities, their extensive distribution, refining processes, final routes into environment pose threat human health ecosystem. Additional environmental ...

2015
Grażyna Kaczyńska Agata Borowik Jadwiga Wyszkowska

The aim of the research was to compare the effects of various petroleum products, biodiesel, diesel oil, fuel oil and unleaded petrol on soil dehydrogenases, and to evaluate biostimulation with compost and urea in the restoration of homeostasis of the soil contaminated with these products. The obtained results allowed for defining the weight of dehydrogenases in monitoring of the environment su...

This study focuses on the forecasting of energy demands of residential and commercial sectors using linear and exponential functions. The coefficients were obtained from genetic and particle swarm optimization (PSO) algorithms. Totally, 72 different scenarios with various inputs were investigated. Consumption data in respect of residential and commercial sectors in Iran were collected from the ...

In recent decades, the increase of pollution from consumption of oil and petroleum products has led to development of many environmental laws. It is important for Iranian policy makers to be informed about the impact of such laws on oil prices, given the dependence of the country’s budget on oil revenues. Under a new International Maritime Organization regulation passed in mid-2016, ships are r...

Journal: :Energy Economics 2023

We evaluate US Energy Information Administration (EIA) forecasts of the world petroleum market, emphasising importance taking a multivariate perspective, considering asymmetric loss and allowing for time-variation. Forecasts total demand, supply, stock withdrawals oil prices are biased, with biases that change over time differ across variables. A function takes into account asymmetry interdepen...

2017
Fabiana A. Lobo Danielle Goveia Leonardo F. Fraceto André H. Rosa

The demand for energy resources by various systems such as production and transportation, as well as for physical comfort continues to grow apace, intensifying global dependence on fossil fuels and their derivatives. For this reason, numerous private and public programs in several countries have established feasible alternatives for the substitution of petroleum derivatives (Sahin, 2011; Saint ́...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید