Results 21 to 30 of about 1,631,280 (354)

Radiation Pressure Feedback in Galaxies [PDF]

open access: yes, 2011
We evaluate radiation pressure from starlight on dust as a feedback mechanism in star-forming galaxies by comparing the luminosity and flux of star-forming systems to the dust Eddington limit.
B.H. Andrews   +5 more
core   +1 more source

Densification behaviour of sintered aluminum composites during hot deformation

open access: yesAIMS Materials Science, 2018
In this study, an investigation on the densification behavior and forming limit of powder metallurgy composites containing hard carbide particles were carried out. The selected composite materials are Al4TiC, Al4WC, Al4Fe3C and Al4Mo2C. The compacts of 0.
Sumesh Narayan   +1 more
doaj   +1 more source

Experimental And Theoretical Determination Of Forming Limit Curve

open access: yesArchives of Metallurgy and Materials, 2015
The paper presents a method for determining forming limit curves based on a combination of experiments with finite element analysis. In the experiment a set of 6 samples with different geometries underwent plastic deformation in stretch forming till the ...
Adamus J., Dyja K., Motyka M.
doaj   +1 more source

Effect of initial state on formability of AA1060 alloy under quasi-static and electromagnetic forming

open access: yesJournal of Materials Research and Technology, 2022
It has been reported that the forming limit of materials can be improved during electromagnetic forming (EMF). However, the detailed mechanism of this phenomenon remains unclear.
Ang Xiao   +5 more
doaj   +1 more source

Search for anions in molecular sources: C4H- detection in L1527 [PDF]

open access: yes, 2007
We present the results of a search for the negative ion C4H- in various dark clouds, low mass star-forming regions and photon-dominated regions (PDRs). We have also searched for C6H-, C2H- and CN- in some of the sources.
Brünken   +28 more
core   +3 more sources

High-Energy Limit of Form Factors [PDF]

open access: yesPhysical Review, 1960
This theorem is proved: For finite charge renormalization constant Z3-1, the form factors describing any vertex with two particles on the mass shell must vanish at infinite momentum transfer. The relation of this result to the work of Lehmann, Symanzik, and Zimmermann is discussed.
Drell, S. D., Zachariasen, F.
openaire   +2 more sources

How Aspects of Self-Compassion Contribute to Wellbeing and the Effect of Age [PDF]

open access: yes, 2012
For modern high strength steels, instead of metal instability, ductile damage triggered by the formation of microvoids or microcracks resulting from the complex material microstructure, has become the key factor responsible for the final failure in the ...
Kalla, Mahima   +2 more
core   +1 more source

Forming Limit Diagram of the AMS 5599 Sheet Metal

open access: yesArchives of Metallurgy and Materials, 2013
Zdolność do przyjmowania odkształceń plastycznych podczas kształtowania blach zależy od ich właściwości mechanicz- nych Odkształcalność blach zależy od rodzaju materiału - a ponadto, materiał który wykazuje dobrą odkształcalność podczas kształtowania ...
Fracz W.   +3 more
doaj   +1 more source

Prediction and Verification of Forming Limit Diagrams Based on a Modified Shear Failure Criterion

open access: yesChinese Journal of Mechanical Engineering, 2023
The forming limit diagram plays an important role in predicting the forming limit of sheet metals. Previous studies have shown that, the method to construct the forming limit diagram based on instability theory of the original shear failure criterion is ...
Haibo Wang   +3 more
doaj   +1 more source

A Search for H2O in the Strongly Lensed QSO MG 0751+2716 at z=3.2 [PDF]

open access: yes, 2006
We present a search for 183 GHz H_2O(3_13-2_20) emission in the infrared-luminous quasar MG 0751+2716 with the NRAO Very Large Array (VLA). At z=3.200+/-0.001, this water emission feature is redshifted to 43.6 GHz.
Alloin D.   +11 more
core   +2 more sources

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