Results 11 to 20 of about 9,522 (145)

Experimental study of the stress state and strain rate dependent mechanical behaviour of TRIP-assisted steels [PDF]

open access: yesEPJ Web of Conferences, 2021
This paper presents an investigation into the effect of different stress states and strain rates on the austenite-to-martensite transformation during plastic straining of a Q&P steel.
Pontillo A.   +5 more
doaj   +1 more source

Determination of fracture toughness using the compression fracture technique [PDF]

open access: yesEPJ Web of Conferences, 2021
Many engineering materials of importance can be mechanically characterized as brittle or quasi-brittle solids. Examples include many hard polymers, ceramic composites, and low ductility metals.
Cady Carl M., Liu Cheng
doaj   +1 more source

The split Hopkinson bar bulge setup: a novel dynamic biaxial test method [PDF]

open access: yesEPJ Web of Conferences, 2021
In sheet metal forming, very often, large plastic deformations are imposed to a thin plate. An accurate description of the material’s elastoplastic response is therefore of paramount importance to perform finite element (FE) simulations of an actual ...
Corallo Luca, Verleysen Patricia
doaj   +1 more source

MST radar and polarization lidar observations of tropical cirrus [PDF]

open access: yesAnnales Geophysicae, 2001
Significant gaps in our understanding of global cirrus effects on the climate system involve the role of frequently occurring tropical cirrus. Much of the cirrus in the atmosphere is largely due to frequent cumulus and convective activity in the ...
Y. Bhavani Kumar   +3 more
doaj   +1 more source

Real-time complex light field generation through a multi-core fiber with deep learning

open access: yesScientific Reports, 2022
The generation of tailored complex light fields with multi-core fiber (MCF) lensless microendoscopes is widely used in biomedicine. However, the computer-generated holograms (CGHs) used for such applications are typically generated by iterative ...
Jiawei Sun   +5 more
doaj   +1 more source

Solid-State Welding of the Nanostructured Ferritic Alloy 14YWT Using a Capacitive Discharge Resistance Welding Technique

open access: yesMetals, 2021
Joining nanostructured ferritic alloys (NFAs) has proved challenging, as the nano-oxides that provide superior strength, creep resistance, and radiation tolerance at high temperatures tend to agglomerate, redistribute, and coarsen during conventional ...
Calvin Robert Lear   +6 more
doaj   +1 more source

Aspect sensitivity in the VHF radar backscatters studied using simultaneous observations of Gadanki MST radar and GPS sonde [PDF]

open access: yesAnnales Geophysicae, 2004
Simultaneous observations made on four days using the MST radar and GPS-sonde at Gadanki (13.5° N, 79.2° E), a tropical station in India, are presented to address the aspect sensitivity of radar backscatters observed at different heights.
A. K. Ghosh   +4 more
doaj   +1 more source

As crianças sem terrinha e o enfrentamento à pandemia de covid-19: como brincar, sorrir e lutar nesse contexto?

open access: yesZero-a-seis, 2020
A pandemia do novo coronavírus escancara as consequências da crise econômica, política, sanitária, ambiental e civilizatória oriunda do modo de desenvolvimento capitalista.
Márcia Mara Ramos   +2 more
doaj   +1 more source

Simultaneous VHF radar backscatter and ionosonde observations of low-latitude E region [PDF]

open access: yesAnnales Geophysicae, 2005
The first results of simultaneous observations made on the low-latitude field-aligned irregularities (FAI) using the MST radar located at Gadanki (13.5° N, 79.2° E, dip 12.5°) and the Es parameters using an ionosonde at a nearby station ...
A. K. Patra   +3 more
doaj   +1 more source

2001-2021, two decades of the National Theater Brigade of the MST Patativa do Assaré: resonances, challenges and interfaces with the theatrical work of Rural Education

open access: yesRevista Brasileira de Educação do Campo, 2021
The article analyzes the experience of two decades of work by the MST National Theater Brigade in peasant communities in several Brazilian states, through the methodologies of participant observation, literature review and qualitative research.
Rafael Litvin Villas-Boas
doaj   +1 more source

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