Results 21 to 30 of about 145,939 (260)

Thermogravimetric Analysis of Marine Gas Oil in Lubricating Oil

open access: yesJournal of Marine Science and Engineering, 2021
Marine lubricating oil (LO) is deteriorated by contaminants—especially marine gas oil (MGO), which is invariably mixed during its usage—that can damage engine performance. This study investigates a method for determining the content of MGO in lubricating
Suhyun Ahn, Jeong Mog Seo, Heejin Lee
doaj   +1 more source

Analysis of thermal degradation behavior for some hydraulic oils, using FTIR-TGA coupling [PDF]

open access: yesMATEC Web of Conferences, 2020
The transitions between the vibrational energetic states of atoms represent the infrared absorption spectra, which is a band spectrum over which the transitions between energetic rotational states overlap.
Şuvar Niculina-Sonia   +3 more
doaj   +1 more source

A novel method for kinetics analysis of pyrolysis of hemicellulose, cellulose, and lignin in TGA and macro-TGA

open access: yesRSC Advances, 2015
A novel peak analysis-least square method to analyze the kinetics is developed. The accuracy of this method is very good.
Hui Zhou   +5 more
openaire   +1 more source

Longitudinal Cerebral Perfusion Change in Transient Global Amnesia Related to Left Posterior Medial Network Disruption. [PDF]

open access: yesPLoS ONE, 2015
The pathophysiology of transient global amnesia (TGA) is not fully understood. Previous studies using single photon emission computed tomography (SPECT) have reported inconclusive results regarding cerebral perfusion. This study was conducted to identify
Jae-Won Jang   +8 more
doaj   +1 more source

Prediction of Pyrolysis Gas Composition Based on the Gibbs Equation and TGA Analysis

open access: yesEnergies, 2023
Conventional methods used to determine pyrolysis gas composition are based on chemical kinetics. The mechanism of those reactions is often unknown, which makes the calculations more difficult.
Izabela Wardach-Świȩcicka   +1 more
doaj   +1 more source

Reactivity of chars gasified in a fixed bed reactor with the potential utilization of excess process heat

open access: yesJournal of Sustainable Mining, 2017
The aim of the work presented in this paper was to determine the reactivity of chars and their selection for further research purposes concerning coal gasification processes with the utilization of process excess heat.
Magdalena Cempa, Adam Smoliński
doaj   +1 more source

Thermo gravimetric analysis (TGA) of PA6/G and PA6/GNP composites using two processing streams

open access: yesJournal of King Saud University: Engineering Sciences, 2022
The thermogravimetric (TGA) responses of PA6 composites filled with synthetic Graphite (G) and Graphite nanoplatelets (GNP) each on 5 cumulative loading levels were investigated using two processing streams each of a common processing strain.
Muneer Umar   +3 more
doaj   +1 more source

Loss of AMBRA1 activates MAPK and angiogenesis signaling pathways in melanoma cells

open access: yesFEBS Open Bio, EarlyView.
Loss of AMBRA1 in melanoma cells activates multiple oncogenic pathways associated with tumor progression. Transcriptomic and protein network analyses revealed that AMBRA1 depletion enhances MAPK/ERK signaling, angiogenesis, TGF‐β/EMT signaling, and Wnt/axon guidance pathways.
Milad Ibrahim   +4 more
wiley   +1 more source

Effects of IGFBP4 deficiency on human preadipocyte proliferation and differentiation through the IGF1R/AKT pathway

open access: yesFEBS Open Bio, EarlyView.
IGFBP4 knockdown (KD) impairs preadipocyte proliferation and is associated with IGF1R protein downregulation and attenuated AKT phosphorylation. The mechanisms by which IGFBP4 KD influences the IGF1R/AKT signaling pathway involve newly synthesized proteins and lysosomal degradation pathways. Created in BioRender.
Yujia Guo   +6 more
wiley   +1 more source

Identification and characterisation of calcitonin receptor isoforms expressed in glioblastoma derived glioma stem and U‐87 MG cells

open access: yesFEBS Open Bio, EarlyView.
Glioblastoma cells express calcitonin receptor variants (CT receptor isoforms) that may help them survive stress. Using qPCR, transcript‐specific long‐read nanopore sequencing, immunofluorescence co‐localisation and comparative sequence analysis, this study identifies a novel alternatively spliced CALCR transcript that encodes the CTb receptor isoform ...
Pragya Gupta   +7 more
wiley   +1 more source

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