Results 61 to 70 of about 114,830 (264)

The role of order and disorder in thermal and material sciences part 1: Heat and society [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2002
The notion of heat is thoroughly analyzed and its historical links are searched particularly with relation to both the Greek philosophy (Milesians, Pythagoreans, atomists, etc.) and in the present day thermal physics.
Šesták J.
doaj   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Dissipative and non-dissipative single-qubit channels: dynamics and geometry [PDF]

open access: yesQuantum Information Processing, 2013
Single-qubit channels are studied under two broad classes: amplitude damping channels and generalized depolarizing channels. A canonical derivation of the Kraus representation of the former, via the Choi isomorphism is presented for the general case of a system's interaction with a squeezed thermal bath.
S. Omkar   +2 more
openaire   +2 more sources

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

The dissipative brain

open access: yes, 2004
I review the dissipative quantum model of brain and discuss its recent developments related with the role of entanglement, quantum noise and chaos. Some comments on consciousness in the frame of the dissipative model are also presented. Dissipation seems to account for the medial character of consciousness, for its being in the present (the Now), its ...
openaire   +3 more sources

LIQUID LAYERS MOTION INVESTIGATION

open access: yesAdvanced Engineering Research, 2011
The diffraction motion of two layers of the incompressible heavy liquid around the vertical circular support column is investigated. The hard cover approaching is used to distinguish internal wave alone. The research data are extended to the utmost scope
Victor V. Trepachev
doaj  

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du   +4 more
wiley   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

open access: yesAdvanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li   +5 more
wiley   +1 more source

Cambios en el pelaje del roedor subterráneo Ctenomys talarum: posible mecanismo térmico compensatorio Fur changes in the subterranean rodent Ctenomys talarum: possible thermal compensatory mechanism

open access: yesRevista Chilena de Historia Natural, 2004
En este trabajo se evaluaron los cambios en densidad y longitud del pelaje dorsal y ventral en el roedor subterráneo Ctenomys talarum, como posible mecanismo compensatorio frente a cambios de temperatura estacionales en el ambiente de la cueva, en ...
ANA P CUTRERA, CARLOS D ANTINUCHI
doaj  

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