Results 61 to 70 of about 1,076,696 (421)

Petroleum Refinery Multi-Antenna Propagation Measurements [PDF]

open access: yes, 2016
This paper presents the results of the first multi- antenna propagation measurement campaign to be conducted at an operating petroleum refining facility. The measurement equipment transmits pseudo-random noise test signals from two antennas at a 2.47 GHz carrier with a signal bandwidth of approximately 25 MHz.
arxiv   +1 more source

Petroleum, coal and other organics in space [PDF]

open access: yes, 2020
The petroleum and coal models of the unidentified infrared emissions (UIE), sometimes referred also as unidentified infrared bands (UIBs) has been reviewed mainly based on the work of the authors with the inclusion of unpublished results. It is shown that the petroleum and coal model of the UIE converges and merges quite well with the MAON (Mixed ...
arxiv   +1 more source

Application of Polysaccharide Biopolymer in Petroleum Recovery

open access: yesPolymers, 2020
Polysaccharide biopolymers are biomacromolecules derived from renewable resources with versatile functions including thickening, crosslinking, adsorption, etc.
Shunxiang Xia   +5 more
semanticscholar   +1 more source

Incidence of and Risk of Mortality After Hip Fractures in Rheumatoid Arthritis Relative to the General Population

open access: yesArthritis Care &Research, EarlyView.
Objective Osteoporosis, a known complication of rheumatoid arthritis (RA), increases the risk of hip fracture, which is associated with high morbidity and mortality. Fracture risk estimates in patients with RA treated with contemporary treatment strategies are lacking.
C. Allyson Jones   +5 more
wiley   +1 more source

Characterization of novel biosurfactant producing strains of Bacillus spp. isolated from petroleum contaminated soil

open access: yesIranian Journal of Microbiology, 2009
Background and objectives: Biosurfactants are surface active agents with broad range commercial applications in various industries and have considerable advantages over their chemical counterparts.
S Nasr   +3 more
doaj  

Biodegradation of oil refinery residues using mixed-culture of microorganisms isolated from a landfarming

open access: yesBrazilian Archives of Biology and Technology, 2009
In this study, the potential for using an inoculum composed of a mixed-culture of bacteria and fungi, isolated from a landfarming at the Paulínia Oil Refinery, Brazil, to degrade oil residues generated in the process of petroleum refinement was ...
Eduardo Beraldo de Morais   +1 more
doaj   +1 more source

INFLUENCE OF SURFACE-ACTIVE RHAMNOLIPID BIOCOMPLEX AND ETHYLTHIOSULFANILATE ON GROWTH AND BIOCHEMICAL PARAMETERS OF PLANTS IN THE OIL CONTAMINATED SOIL [PDF]

open access: yesBiotechnologia Acta, 2015
The aim of the work was to study the influence of rhamnolipid biocomplex and ethylthiosulfanilate on field pea and sorghum plants when growing in petroleum contaminated soil.
A. R. Banya   +5 more
doaj   +1 more source

Fractional radial-cylindrical diffusivity model for levels of heterogeneity in petroleum reservoirs [PDF]

open access: yes, 2018
The generalized Taylor's Formula is used to derive a fractional radial-cylindrical diffusivity model via a fractional conservation of mass in radial geometry in a petroleum reservoir. The result is a space-fractional generalization of the diffusivity model with an arbitrary order that explains the degree of heterogeneity of the medium (a continuous ...
arxiv   +1 more source

Could One Find Petroleum Using Neutrino Oscillations in Matter? [PDF]

open access: yesEurophys.Lett. 60 (2002) 34-39, 2001
In neutrino physics, it is now widely believed that neutrino oscillations are influenced by the presence of matter, modifying the energy spectrum produced by a neutrino beam traversing the Earth. Here, we will discuss the reverse problem, i.e. what could be learned about the Earth's interior from a single neutrino baseline energy spectrum, especially ...
arxiv   +1 more source

Petroleum‐Prüfung [PDF]

open access: yesArchiv der Pharmazie, 1881
n ...
openaire   +2 more sources

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