Results 51 to 60 of about 14,053,384 (305)

Oscillatory mechanoluminescence of Mn2+-doped SrZnOS in dynamic response to rapid compression

open access: yesNature Communications
Photon emission may be continuously produced from mechanical work through self-recoverable mechanoluminescence (ML). Significant progress has been made in high-performance ML materials in the past decades, but the rate-dependent ML kinetics remains ...
Hao Wang   +13 more
doaj   +1 more source

From Molecules to Carbon Materials—High Pressure Induced Polymerization and Bonding Mechanisms of Unsaturated Compounds

open access: yesCrystals, 2019
With the development of high-pressure apparatus, in situ characterization methods and theoretical calculations, high-pressure technology becomes a more and more important method to synthesize new compounds with unusual structures and properties.
Xin Yang   +4 more
doaj   +1 more source

Calibrating pressure switch [PDF]

open access: yes, 1968
A pressure switch assembly comprising a body portion and a switch mechanism having a contact element operable between opposite limit positions is described. A diaphragm chamber is provided in the body portion which mounts therein a system diaphragm and a
Smith, N. J.
core   +1 more source

Statistics of pressure and of pressure-velocity correlations in isotropic turbulence [PDF]

open access: yes, 2000
Some pressure and pressure-velocity correlation in a direct numerical simulations of a three-dimensional turbulent flow at moderate Reynolds numbers have been analyzed.
Arad I.   +13 more
core   +4 more sources

New paradigm for configurational entropy in glass-forming systems

open access: yesScientific Reports, 2022
We show that on cooling towards glass transition configurational entropy exhibits more significant changes than predicted by classic relation. A universal formula according to Kauzmann temperature $${T}_{K}$$ T K is given: $$S={S}_{0}{t}^{n}$$ S = S 0 t ...
Aleksandra Drozd-Rzoska   +2 more
doaj   +1 more source

High Blood Pressure and Cardiovascular Disease

open access: yesHYPERTENSION, 2019
Fragmented investigation has masked the overall picture for causes of cardiovascular disease (CVD). Among the risk factors for CVD, high blood pressure (BP) is associated with the strongest evidence for causation and it has a high prevalence of exposure.
F. Fuchs, P. Whelton
semanticscholar   +1 more source

NbN-based Josephson junctions grown by plasma-assisted molecular beam epitaxy

open access: yesCommunications Materials
Improved process for the growth of NbN by plasma-assisted molecular beam epitaxy (PAMBE) is needed for the fabrication of Josephson junctions, that are building blocks of qubits in quantum computers.
Artur Lachowski   +11 more
doaj   +1 more source

In situ high-pressure spectroscopic studies using moissanite (4H-SiC) anvils

open access: yesAIP Advances, 2018
We examined the Raman scattering and IR absorption spectroscopy of 4H-SiC and its performance as an anvil material for high-pressure UV-visible absorption spectroscopic measurements.
Jinbo Zhang   +7 more
doaj   +1 more source

The fourth report on the diagnosis, evaluation, and treatment of high blood pressure in children and adolescents

open access: yesPediatrics, 2004
2004;114;555-576 Pediatrics Pressure in Children and Adolescents National High Blood Pressure Education Program Working Group on High Blood Pressure in Children and Adolescents The Fourth Report on the Diagnosis, Evaluation, and Treatment of High Blood ...
B. Falkner   +20 more
semanticscholar   +2 more sources

Creative Pressure Tactics [PDF]

open access: yes, 1998
[Excerpt] Saul Alinsky, a great labor and community organizer, once said that “tactics that drag on become a drag.” Stewards know that tactics used too often can lose their effectiveness and burn members out.
Margolies, Ken
core   +1 more source

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