Elucidating the spatially asymmetric fluctuation behavior of the keyhole during laser melting
Journal of Materials Research and TechnologyThe process stability and formation quality are directly affected by the keyhole fluctuation behavior during laser welding and laser additive manufacturing.
Yu Wang +4 more
doaj +1 more source
Metals, 2018 A three-dimensional multiphysical transient model was developed to investigate keyhole formation, weld pool dynamics, and mass transfer in laser welding of dissimilar materials.
Jiazhou Wu +3 more
doaj +1 more source
Characteristics and performance of the variable polarity plasma arc welding process used in the Space Shuttle external tank [PDF]
Significant advantages of the Variable Polarity Plasma Arc (VPPA) Welding Process include faster welding, fewer repairs, less joint preparation, reduced weldment distortion, and absence of porosity.
Hung, R. J., Lee, C. C., Liu, J. W.
core +1 more source
Energy Detection of Unknown Signals over Cascaded Fading Channels
, 2015 Energy detection is a favorable mechanism in several applications relating to the identification of deterministic unknown signals such as in radar systems and cognitive radio communications. The present work quantifies the detrimental effects of cascaded
Al-Qutayri, Mahmoud +4 more
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Magnetic Resonance in Medicine, Volume 95, Issue 2, Page 724-739, February 2026.Abstract Purpose Accurate identification of arterial feeders and draining veins is critical for treatment decision‐making in patients with intracranial high‐flow vascular lesions. Currently available MRI sequences lack the temporal and spatial resolution needed for this task.
Andreas Petrovic +6 more
wiley +1 more source
Bordetella BcrH1 and BcrH2 Are Specific Chaperones for the Pore‐Forming Complex
Microbiology and Immunology, Volume 70, Issue 2, Page 57-67, February 2026.ABSTRACT Bordetella has a type III secretion system that secretes virulence proteins crucial to the establishment of infection. The genes encoding components of the Bordetella type III secretion system are located in the bsc region on the chromosome. This region includes the bcrH1 and bcrH2 genes, which respectively encode the proteins BcrH1 and BcrH2.
Yuya Kishino +4 more
wiley +1 more source
Robot‐Assisted Automated Serial‐Sectioning and Imaging for 3D Microstructural Investigations
Advanced Engineering Materials, Volume 28, Issue 2, January 21, 2026.A fully automated 3D microstructure characterization platform provides new insights into materials. This robot‐assisted system performs serial‐sectioning, etching, and optical imaging to generate large‐volume 3D reconstructions with submicron resolution.
Michael Moschetti +7 more
wiley +1 more source
Investigation of Nano-keyhole Cooling Evolution using Boubaker Polynomials Expansion Scheme (BPES)
Nano Biomedicine and Engineering, 2010 This study proposes an analytical expression for temperature evolution inside a nano-keyhole modeled device. Several assumptions have been taken into account.
M. Dada +4 more
doaj +1 more source
The Strength and Characteristics of VPPA Welded 2219-T87 Aluminum Alloy [PDF]
A study of the variable polarity plasma arc (VPPA) welding process and those factors that control the structure and properties of VPPA welded aluminum alloy 2219-T87 was conducted.
Jemian, W. A.
core +1 more source
The effect of abrupt weaning of suckler calves on the plasma concentrations of cortisol, catecholamines, leukocyte, acute-phase proteins and in vitro interferon-gamma production [PDF]
, 2005 End of project reportThe objective of this study was to examine the effect of abrupt weaning (inclusive of social group disruption and maternal separation) on the physiological mediators of stress and measures of immune function. Thirty-eight male and 38
Drennan, Michael J +2 more
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