Results 41 to 50 of about 1,132,843 (309)

Ambient temperature catalyst for hydrogen ignition [PDF]

open access: yes, 1968
Low cost, ambient temperature catalyst for reacting hydrogen gas with air in a catalytic cell near the point of evolution at a controlled rate is ...
Roberts, R. W.
core   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez   +5 more
wiley   +1 more source

Thermo-mechanical Coupling of Pantograph-Catenary System under Different Ambient Temperatures

open access: yesChengshi guidao jiaotong yanjiu
[Objective] Under extreme ambient temperatures, issues such as excessive temperature rise and intensified contact force fluctuation readily occur in the PC (pantograph-catenary) contact zone.
JIANG Hangyan   +5 more
doaj   +1 more source

Effects of elevated atmospheric CO2 concentration on morphology of leaf blades in Chinese yam

open access: yesPlant Production Science, 2018
The effects of elevated carbon dioxide concentration on the morphology of leaf blades in two Chinese yam lines under different temperature conditions were determined.
Nguyen Cong Thinh   +3 more
doaj   +1 more source

Ambient temperature and congenital heart defects [PDF]

open access: yesHuman Reproduction, 2013
Does maternal exposure during pregnancy to higher ambient temperature increase the risk of congenital heart defects (CHDs)?Significant associations were found between maternal exposure during pregnancy to higher ambient temperature and CHDs risk especially during the cold season.From rodents to non-human primates, a teratogenic effect of hyperthermic ...
K, Agay-Shay   +5 more
openaire   +2 more sources

Near-IR Phosphorescence of Iridium(III) Corroles at Ambient Temperature [PDF]

open access: yes, 2010
The photophysical properties of Ir(III) corroles differ from those of phosphorescent porphyrin complexes, cyclometalated and polyimine Ir(III) compounds, and other luminescent metallocorroles.
Durrell, Alec C.   +4 more
core   +2 more sources

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

Pollination in a new climate: Assessing the potential influence of flower temperature variation on insect pollinator behaviour. [PDF]

open access: yesPLoS ONE, 2018
Climate change has the potential to enhance or disrupt biological systems, but currently, little is known about how organism plasticity may facilitate adaptation to localised climate variation.
Mani Shrestha   +4 more
doaj   +1 more source

Control of flowering by ambient temperature [PDF]

open access: yesJournal of Experimental Botany, 2014
The timing of flowering is a crucial decision in the life cycle of plants since favourable conditions are needed to maximize reproductive success and, hence, the survival of the species. It is therefore not surprising that plants constantly monitor endogenous and environmental signals, such as day length (photoperiod) and temperature, to adjust the ...
Capovilla, G., Schmid, M., Posé, D.
openaire   +3 more sources

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

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