Results 21 to 30 of about 990,324 (333)

Influence of diesel and biodiesel fuel-contaminated soil on microorganisms, growth and development of plants

open access: yesPlant, Soil and Environment, 2015
The paper presents the results of studies concerning the phytotoxicity of biodiesel and its diesel oil blends with a germination and root elongation test.
M. Hawrot-Paw   +2 more
doaj   +1 more source

Assessing raw materials as potential adsorbents to remove acidic compounds from Brazilian crude oils by ESI (-) FT-ICR MS [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2020
The presence of acidic compounds as naphthenic acids in crude oil causes several problems for the petroleum industry, including corrosion in both upstream and downstream production processes. Based on this scenario, the main objective of this work was to
GEIZILA A.P. ABIB   +6 more
doaj   +1 more source

Isolation and Identification of Pseudomonas aeruginosa from Soil Contaminated with Petroleum Products

open access: yesJournal of Pure and Applied Microbiology
The amount of petroleum hydrocarbons affects biodegradation. Different classifications can be used to petroleum components Asphaltenes, ethers, fatty acids, porphyrins and resins saturated fatty acids.
Zahraa M. Al-Taee   +8 more
doaj   +1 more source

Downhole Applications of Magnetic Sensors

open access: yesSensors, 2017
In this paper we present a review of the application of two types of magnetic sensors—fluxgate magnetometers and nuclear magnetic resonance (NMR) sensors—in the oil/gas industry.
Chinthaka P. Gooneratne   +2 more
doaj   +1 more source

The worker dreamed by his boss: business policies in an oil community in Comodoro Rivadavia, Argentina (1917-1932)

open access: yesRevista Mundos do Trabalho, 2021
This article examines the welfare policies deployed by the leadership of the state-owned company Yacimientos Petrolíferos Fiscales (YPF) in Comodoro Rivadavia between the end of the 1910s and the beginning of the 1930s.
Andrea Norma Andújar
doaj   +1 more source

Macroeconomic variables and demand in the Mexican hotel industry, period 2010-2016

open access: yesRAN, 2022
Purpose: The objective of this research was to determine the impact of the variation of the main macroeconomic variables on the demand of the Mexican hotel sector. Methodology: Data from companies listed on the Mexican Stock Exchange were analyzed for
Oscar Naum Velázquez López   +2 more
doaj   +1 more source

Source Rocks And Sorcerers: Decoding The Origin Of The Niger Delta Petroleum

open access: yesThe Proceedings of the Nigerian Academy of Science, 2015
Against the present-day credo of the organic origin of petroleum, it may be difficult to believe that in the early days of the oil industry, the abiogenic (inorganic) origin of petroleum held sway.
Chidi Adonis Ibe FAS
doaj   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

Price Volatility in the Commodity Market and the Bank’s Risk

open access: yesProblemy Zarządzania, 2017
Price volatility in raw material markets significantly affects the efficiency of real economy. Raw materials are not only used in the industry but are also very popular in periods of economic downturn.
Bogdan Włodarczyk
doaj   +1 more source

Surfactant-Polymer Interactions in a Combined Enhanced Oil Recovery Flooding

open access: yesEnergies, 2020
The traditional Enhanced Oil Recovery (EOR) processes allow improving the performance of mature oilfields after waterflooding projects. Chemical EOR processes modify different physical properties of the fluids and/or the rock in order to mobilize the oil
Pablo Druetta, Francesco Picchioni
doaj   +1 more source

Home - About - Disclaimer - Privacy