Results 41 to 50 of about 91,586 (302)
An absorption profile centred at 78 megahertz in the sky-averaged spectrum
, 2018 After stars formed in the early Universe, their ultraviolet light is expected, eventually, to have penetrated the primordial hydrogen gas and altered the excitation state of its 21-centimetre hyperfine line.
Bowman, Judd D. +4 more
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Cathodic Reactions Involved in the Corrosion of X80 steel in Acidic Soil Simulated Solution
International Journal of Electrochemical Science, 2016 Research on soil corrosion mainly focused on the impact of soil parameters on corrosion behavior, but the cathodic corrosion reaction of steel in acidic soil has not been studied systematically.
Shuaixing Wang +4 more
doaj +1 more source
Scientific African, 2020 This study investigated the presence of viable indigenous hexadecane degraders in chronically polluted soil in Gio community, Niger Delta. Crude oil-polluted samples were collected from the four GPS coordinate points at depth of 0-0.15m (Gio polluted ...
A.U. Okoye +2 more
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Stability of salts and complexes of humic acids [PDF]
, 2009 Základem práce je studium vlivu přítomnosti kovů inkorporovaných do struktury huminových látek při tepelné zátěži za přítomnosti vzdušného kyslíku.
Nováčková, Kristýna
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GeAl2‐2xFe2xO3(OH)4 Nanotubes: New Electrocatalyst for Oxygen Evolution Reaction
Advanced Functional Materials, EarlyView.Fe‐doped imogolite nanotubes are synthesized via a one‐step hydrothermal method with varying Fe substitution ratios x. Structural and spectroscopic analyses confirm homogeneous Fe incorporation while preserving tubular shape. Optimal doping at x = 0.05 enhances optical absorption, narrows band gap, reduces charge transfer resistance, and significantly ...
Yassine Naciri +12 more
wiley +1 more source
Analysis of Soil Ionization Behaviors under Impulse Currents
Journal of Electrical Engineering and Technology, 2009 This paper presents the characteristics of soil ionization for different water contents, and the parameters associated with the dynamic properties of a simple model grounding system subject to lightning impulse currents. The laboratory experiments for this study were carried out based on factors affecting the soil resistivities.
Bok-Hee Lee +3 more
openaire +2 more sources
Effects of urbanization on host-pathogen interactions, using Yersinia in house sparrows as a model [PDF]
, 2017 Urbanization strongly affects biodiversity, altering natural communities and often leading to a reduced species richness. Yet, despite its increasingly recognized importance, how urbanization impacts on the health of individual animals, wildlife ...
Cox, Ivo +11 more
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Advanced Healthcare Materials, EarlyView.This review explores how alternative invertebrate and small‐vertebrate models advance the evaluation of nanomaterials across medicine and environmental science. By bridging cellular and organismal levels, these models enable integrated assessment of toxicity, biodistribution, and therapeutic performance.
Marie Celine Lefevre +3 more
wiley +1 more source
The chemometric approach to identification of residual oil contamination at former primitive asphalt pavement plants; pp. 410–430 [PDF]
Oil Shale, 2019 This study investigated polycyclic aromatic hydrocarbons (PAHs) and hydrocarbon oil index (HOI) pollution in the soil on the territories of two former primitive asphalt pavement plants (APPs) in Estonia. The standard quantitative methods for the chemical
Jelena Jurjeva, Mihkel Koel
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The search for exudates from Eurasian watermilfoil and hydrilla [PDF]
, 2002 Secondary metabolites are produced by aquatic plants, and in some instances, exudation of these metabolites into the surrounding water has been detected.
Glomski, Lee Ann M. +3 more
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