Results 41 to 50 of about 879,985 (309)

Materials data handbooks prepared for aluminum alloys 2014, 2219, and 5456, and stainless steel alloy 301 [PDF]

open access: yes, 1967
Materials data handbooks summarize all presently known properties of commercially available structural aluminum alloys 2014, 2219, and 5456 and structural stainless steel alloy 301.

core   +1 more source

Physical and mechanical properties of Ti1 − xSixN films [PDF]

open access: yesSurface and Coatings Technology, 1998
Ti 1-x Si x N coatings with 0 ≤x≤0.30 and thicknesses ranging from 1.2 to 3.3 μm, were deposited on to polished high-speed steel substrates by r.f. reactive magnetron sputtering. The atomic composition of the samples was measured by Rutherford backscatering spectrometry (RBS), and the texture was determined by X-ray diffraction ( XRD).
Vaz, F.   +5 more
openaire   +2 more sources

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

"Application of solution-polymerized styrene-butadiene rubber FX 5021 and FX 3211 in tread compound of tire"

open access: yesHecheng xiangjiao gongye, 2023
The dispersion of fillers,physical and mechanical properties and dynamic mechanical properties of vulcanizates were investigated using two grades of solution polymerized styrene butadiene rubber (SSBR) FX 5021 and FX 3211 as matrix materials and silica ...
XIAO Tong-chang, QIAO Yun-he, LIU Ying-jun, DU Ai-hua
doaj   +1 more source

Materials data handbooks on aluminum alloys [PDF]

open access: yes, 1973
Five handbooks have been prepared which describe up-to-date properties of the following wrought-aluminum alloys: 2014, 2219, 5456, 6061, and 7075. Each handbook is divided into twelve chapters.
Muraca, R. F., Whittick, J. S.
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Effect of additon amount of carbon black on curing characteristics, physical and mechanical properties, and dynamic mechanical properties of tetrafluoroethylene-propylene rubber

open access: yesHecheng xiangjiao gongye
The effect of carbon black addition amount on curing characteristics of tetrafluoroethylene-propylene rubber compounds and physical and mechanical properties, dynamic mechanical properties and high- and low-temperature properties of the vulcanizates were
GONG Zi-qing, LI Bo, HE Lian-cheng, HUANG Xi-dai, ZHAO Hong-guo, WU Yu, HU Hai-hua, ZHOU Lei
doaj   +1 more source

Open string with a background B-field as the first order mechanics, noncommutativity and soldering formalism

open access: yes, 2007
To study noncommutativity properties of the open string with constant B-field we construct a mechanical action which reproduces classical dynamics of the string sector under consideration.
A. A. Deriglazov   +14 more
core   +1 more source

Handmade Clay Bricks: Chemical, Physical and Mechanical Properties [PDF]

open access: yesInternational Journal of Architectural Heritage, 2009
The clay brick masonry that is much used in historical structures often is in a rather poor state of conservation. In order to intervene correctly in these buildings, it is convenient to characterize the old material. For this purpose, a large sample of clay brick specimens from the 12th to 19th centuries were collected from six Portuguese monasteries ...
Lourenço, Paulo B.   +2 more
openaire   +2 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

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