16 priority polycyclic hydrocarbons were identified and determined quantitatively by gas chromatography-mass spectrometry method in bottom sediments of estuarine coast of Danube. Concentration of the sum of 16 polyarenes in bottom sediments ranged from 329.6 to 1093.3 μg/kg. The total B(a)Peqv, whose values at the stations of sampling ranged from 34.9 to 195.1 μg/kg, was determined to evaluate ...

The aim of this paper is to examine the impact of temperature shock on both near-month and far-month natural gas and heating oil futures returns by extending the weather and storage models of the previous study. Several notable findings from the empirical studies are presented. First, the expected temperature shock significantly and positively affects both the near-month and far-month natural g...

Membrane gas separation for carbon capture has traditionally been focused on high pressure applications, such as pre-combustion capture and natural gas sweetening. Recently a membrane-cryogenic combined process has been shown to be cost competitive for post-combustion capture from coal fired power stations. Here, the membrane-cryogenic combined process is investigated for application to post-co...

Liquefied petroleum gas (LPG) is widely used in the Gaza Strip for domestic purposes, in agriculture and industry and, illegally, in cars. This study aimed to identify possible health effects on workers exposed to LPG in Gaza governorates. Data were collected by a questionnaire interview, and haematological and biochemical analyses of venous blood samples were made from 30 workers at filling an...

6 The focus of this research is on supplying gasoline after a natural disaster. There are two 7 aspects for this work: determination of which gas stations should be provided with generators 8 (among those that do not have electric power) and determination of a delivery scheme that 9 accounts for increased demand due to lack of public transportation and considerations such as 10 equity. We devel...

This paper aims to address the sustainability of power resources and environmental conditions for telecommunication base stations (BSs) at off-grid sites. Accordingly, this study examined the feasibility of using a hybrid solar photovoltaic (SPV)/wind turbine generator (WTG) system to feed the remote Long Term Evolution-macro base stations at off-grid sites of South Korea the energy necessary t...

Ground stations (GS) are required during spacecraft (SC) operations to provide communications links between operation teams and the SC systems. Traditionally, the allocation of ground resources to SC is a highly constrained problem with sufficiently few solutions, where the process is conducted manually: stations are selected for communication support with certain SC for certain periods. There ...

The mobile telecommunication is one of the major contributors to energy consumption and greenhouse gas emission. In a typical cellular system, the base stations (BSs) contribute 60%-80% of the energy consumption of the whole network. Improving the energy-efficiency of the BSs can significantly reduce both the operational cost and carbon footprint. Therefore, to reduce the cost and the amount of...

Global greenhouse gas emissions need to peak soon and be reduced practically to zero in the second half of this century in order to not exceed the climate targets adopted in the Paris Agreement. However, there are currently numerous coal-fired power stations around the world at different stages of construction and planning that could be completed in the next decade. If all these plants are actu...