Results 61 to 70 of about 5,379,779 (341)

Fine-grained concrete properties in depending on carbon black additive introducing methods

open access: yesJournal of Materials Research and Technology
The object of research is fine-grained concrete with carbon black additive obtained from the recycling of rubber tires. This study aims to determine a method for introducing carbon black into fine-grained concrete that achieves the best strength ...
Sergey Klyuev   +6 more
doaj   +1 more source

Theoretical and experimental aspects of carbon formation in thermal plasma [PDF]

open access: yes, 2007
Formation of carbon black from Freons was studied in RF thermal plasma conditions. Equilibrium compositions of the products were calculated by computer code ASTRA 4.0.
Babievskaya, I. V.   +3 more
core  

Identification of serum protein biomarkers for pre‐cancerous lesions associated with pancreatic ductal adenocarcinoma

open access: yesMolecular Oncology, EarlyView.
This work identified serum proteins associated with pancreatic epithelial neoplasms (PanINs) and early‐stage PDAC. Proteomics screens assessed genetically engineered mice with abundant PanINs, KPC mice (Lox‐STOP‐Lox‐KrasG12D/+ Lox‐STOP‐Lox‐Trp53R172H/+ Pdx1‐Cre) before PDAC development and also early‐stage PDAC patients (n = 31), compared to benign ...
Hannah Mearns   +10 more
wiley   +1 more source

Premature failure of medium-power two-pole induction motor windings

open access: yesElectrical engineering & Electromechanics, 2013
Causes of premature failure of medium-power two-pole induction motor windings after the windings first repair are revealed. Recommendations for the medium-power two-pole induction motor winding reliability improvement are given.
V.D. Lushchyk   +2 more
doaj  

Analysis of Activation Process of Carbon Black Based on Structural Parameters Obtained by XRD Analysis

open access: yesCrystals, 2021
In the present study, carbon black activated by CO2 gas was examined through XRD analysis, especially with regard to changes in its structural parameters. Based on the results, its activation process was thoroughly analyzed.
Sang-Min Lee, Sang-Hye Lee, J. Roh
semanticscholar   +1 more source

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

open access: yesFEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon   +6 more
wiley   +1 more source

Biomass burning is a source of modern black carbon to equatorial Atlantic Ocean sediments

open access: yesCommunications Earth & Environment
Black carbon is a refractory form of organic carbon formed from the incomplete combustion of fossil fuels and biomass. Riverine transport is considered the dominant pathway of black carbon to the coastal oceans.
Samuel D. Katz   +5 more
doaj   +1 more source

Vulcanization Kinetics of Natural Rubber Based On Free Sulfur Determination

open access: yesIndonesian Journal of Chemistry, 2013
The determination of free sulfur in the rubber vulcanizates provided significant representation of vulcanization reaction. In this research, the effects of vulcanization temperature, the mixing method of carbon black into rubber, the ingredients mixing ...
Abu Hasan   +3 more
doaj   +1 more source

Fires prime terrestrial organic carbon for riverine export to the global oceans

open access: yesNature Communications, 2020
Black carbon is a recalcitrant and unique form of organic carbon formed from incomplete combustion. Here the authors use global sampling to reduce uncertainty in the flux of terrestrial black carbon to the oceans, predicting that 34% of black carbon ...
Matthew W. Jones   +6 more
doaj   +1 more source

From mass to structure: An aromaticity index for high-resolution mass data of natural organic matter [PDF]

open access: yes, 2006
Recent progress in Fourier transform ion cyclotron resonance mass spectrometry (FTICRMS) provided extensive molecular mass data for complex natural organic matter (NOM). Structural information can be deduced solely from the molecular masses for ions with
Benecke   +16 more
core   +1 more source

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