Results 21 to 30 of about 7,787,436 (340)

Accelerated Vibrational Energy Relaxation of Water in Alkaline Environments [PDF]

open access: yesThe Journal of Physical Chemistry B, 2021
We observe that hydrated hydroxide ions introduce an additional relaxation channel for the vibrational relaxation of the OD vibrations of HDO molecules in aqueous NaOH solutions. This additional relaxation path involves resonant (Förster) vibrational energy transfer from the excited OD vibration to OH stretch vibrations of hydrated OH- complexes.
Roberto Cota   +2 more
openaire   +5 more sources

Environmental factors contributing to the convergence of bacterial community structure during indigo reduction

open access: yesFrontiers in Microbiology, 2023
Indigo is solubilized through the reducing action of the microbiota that occurs during alkaline fermentation of composted leaves of Polygonum tinctorium L. (sukumo).
Nowshin Farjana   +6 more
doaj   +1 more source

Micro-Fabric Transformations of Ball Clay in Alkaline Environment [PDF]

open access: yesNature Environment and Pollution Technology, 2021
Based on the strong evidence of case histories, this study focused on mineralogical and morphological changes of an artificial kaolinitic soil -Ball clay, when exposed to different concentrations of sodium hydroxide (0.1N, 1N, 4N, and 8N) under different
V. Sai Kumar, P. Hari Prasad Reddy and Ch. Rama Vara Prasad
doaj   +1 more source

Nonfermentative Thermoalkaliphilic Growth Is Restricted to Alkaline Environments [PDF]

open access: yesApplied and Environmental Microbiology, 2009
ABSTRACT Caldalkalibacillus thermarum strain TA2.A1 grew in pH-controlled batch culture containing a fermentable growth substrate (i.e., sucrose) from pH 7.5 to 10.0 with no significant change in the specific growth rate, suggesting that this bacterium was a facultative alkaliphile.
McMillan, Duncan G.G.   +3 more
openaire   +3 more sources

The Bacterial MtrAB Two-Component System Regulates the Cell Wall Homeostasis Responding to Environmental Alkaline Stress

open access: yesMicrobiology Spectrum, 2022
Throughout the course of evolution, bacteria have developed signal transduction tools such as two-component systems (TCSs) to meet their demands to thrive even under the most challenging environmental conditions. One TCS called MtrAB is commonly found in
Xiaoyu Qin   +5 more
doaj   +1 more source

The enrichment of an alkaliphilic biofilm consortia capable of the anaerobic degradation of isosaccharinic acid from cellulosic materials incubated within an anthropogenic, hyperalkaline environment. [PDF]

open access: yes, 2015
Anthropogenic hyper-alkaline sites provide an environment that is analogous to proposed cementitious geological disposal facilities (GDF) for radioactive waste.
A. P. Laws   +46 more
core   +1 more source

Mitochondrial precursor proteins are imported through a hydrophilic membrane environment [PDF]

open access: yes, 1987
We have analyzed how translocation intermediates of imported mitochondrial precursor proteins, which span contact sites, interact with the mitochondrial membranes.
Anderson D.   +38 more
core   +1 more source

Rifting and arc-related early Paleozoic volcanism along the North Gondwana margin: geochemical and geological evidence from Sardinia (Italy) [PDF]

open access: yes, 2012
Three series of volcanic rocks accumulated during the Cambrian to Silurian in the metasediment-dominated Variscan basement of Sardinia. They provide a record of the changing geodynamic setting of the North Gondwana margin between Upper Cambrian and ...
BUZZI L   +3 more
core   +1 more source

CLAY CONSTRUCTION COMPOSITES BASED ON CHEMICALLY ACTIVATED RAW MATERIALS AND ORGANIC CONNECTORS

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2019
Objectives. The aim of this work is to study the theoretical aspects and technological possibilities of chemical activation and modification of organic clay raw materials of the Volga region in organic additives to obtain composite building materials ...
Yu. G. Ivaschenko   +2 more
doaj   +1 more source

Tribocorrosion Properties of PEO Coatings Produced on AZ91 Magnesium Alloy with Silicate- or Phosphate-Based Electrolytes [PDF]

open access: yes, 2018
In this work, the tribocorrosion behavior of plasma electrolytic oxidation (PEO)-coated AZ91 samples was studied. In particular, two different coatings were produced and compared. One was obtained with an alkaline electrolyte containing sodium phosphate,
Brunelli, Katya   +7 more
core   +2 more sources

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