Results 21 to 30 of about 6,474,819 (304)

Influence of surfactants on the formation and growth of cadmium telluride nanoplatelets

open access: yesEurasian Journal of Physics and Functional Materials, 2023
The article presents a comprehensive review of the current research on the use of surfactants in CdTe nanoplatelet synthesis, including a discussion of the various types of surfactants that have been used and their effects on nanoplatelet size, shape ...
A.S. Akhmetova   +3 more
doaj   +1 more source

Sequences of the Genes for the TEM-20, TEM-21, TEM-22, and TEM-29 Extended-Spectrum β-Lactamases [PDF]

open access: yesAntimicrobial Agents and Chemotherapy, 1999
ABSTRACT The sequences of the bla TEM genes encoding TEM-20, TEM-21, TEM-22, and TEM-29 extended-spectrum β-lactamases were determined. Analysis of the deduced amino acid sequences indicated that TEM-20 and TEM-29 were derived from TEM-1 and that TEM-21 and TEM-22 were derived from TEM-2.
G, Arlet   +3 more
openaire   +2 more sources

Synthesis and Studying SomeMechanical Properties of Nanocomposite [PDF]

open access: yesEngineering and Technology Journal, 2013
This study aims to synthesis a nanocomposite from Al2O3 – Cr2O3 and studying some of its mechanical properties like microhardness and fracture strength. X-Ray diffraction patterns shows a good crystallinity of the composite with very sharp and neat peaks.
Fadhil A. Chyad   +2 more
doaj   +1 more source

ELECTROMAGNETIC MONITORING DURING THE AFTERSHOCK PERIOD OF THE 2003 CHUYA EARTHQUAKE IN THE MOUNTAIN (GORNY) ALTAI: MEASUREMENT METHODOLOGY, RESULTS

open access: yesГеодинамика и тектонофизика, 2023
The article considers the method of observations, interpretation of data and results of electromagnetic monitoring with a controlled source for one of the seismically active regions of Siberia – Mountain (Gorny) Altai.
A. E. Shalaginov, N. N. Nevedrova
doaj   +1 more source

Strain and grain size of TiO2 nanoparticles from TEM, Raman spectroscopy and XRD: The revisiting of the Williamson-Hall plot method

open access: yesResults in Physics, 2018
The Williamson-Hall (W-H) equation, which has been used to obtain relative crystallite sizes and strains between samples since 1962, is revisited. A modified W-H equation is derived which takes into account the Scherrer equation, first published in 1918,
P. Kibasomba   +7 more
semanticscholar   +1 more source

What is so super about motion comics?

open access: yesAkademisk Kvarter, 2020
This article explores motion comics through theoretical review of relevant academic work and unique analysis of three sampled motion comic cases. The article intends to illuminate and answer the research question: What is the quality of superhero motion ...
Tem Frank Andersen, Peter Vistisen
doaj   +1 more source

Investigation of thermal properties of carbon nanotubes and carboxyl group - functionalized carbon nanotubes

open access: yesФізика і хімія твердого тіла, 2023
Thermal properties characterizations for carbon nanotubes (CNTs), carboxyl group-functionalized carbon nanotubes (FCNT), and graphite were presented in the paper. TGA/DSC and TEM techniques were used for characterization.
R.G. Abaszade   +10 more
doaj   +1 more source

Geometric interpretation of the signs of trigonometric ratios with Geogebra

open access: yesAmazônia, 2017
The teaching of Trigonometry has been characterized by an algebraic approach, which has made its study a memoristic and a mechanical process. A content where the previous can be evidenced is the signs of the trigonometric ratios, which tend to be treated
Stephanie Chiquinquirá Díaz Urdaneta   +2 more
doaj   +1 more source

Gruppeeksamen som strategisk kommunikation

open access: yesCepra-Striben, 2014
Fra 2012 blev gruppeeksamen genindført som lovlig prøveform på alle niveauer af det danske uddannelsessystem. På universitetsniveau repræsenterer genindførelsen en lejlighed til at foretage en universitetspædagogisk refleksion over, hvad det egentligt ...
Tem Frank Andersen, Janne Bang
doaj   +1 more source

Leisure

open access: yesAkademisk Kvarter, 2019
This issue of Academic Quarter on the topic of Leisure brings together scholars from a vast variety of academic fields, having different perspectives on topics relating to leisure as well as investigating different objects, artifacts, and phenomenon in ...
Tem Frank Andersen, Thessa Jensen
doaj   +1 more source

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