Results 81 to 90 of about 3,340,940 (292)
Advanced Engineering Materials, EarlyView.This work reveals the phase composition and quantitative morphology analysis of precipitation‐hardened Fe32Cu12Ni11Ti16Al29 complex‐concentrated alloy. The precipitates are shown to have a high coherency. Morphology transition between sphere, cuboidal, and elongated morphology is observed. Finally, the overaging behavior is captured using microhardness.
Rostyslav Nizinkovskyi +4 more
wiley +1 more source
DARK ENERGY AND KEY PHYSICAL PARAMETERS OF CLUSTERS OF GALAXIES
Acta Polytechnica, 2013 We study physics of clusters of galaxies embedded in the cosmic dark energy background. The equilibrium and stability of polytropic spheres with equation of state of the matter P = Kpγ, γ = 1 + 1/n, in presence of a non-zero cosmological ...
Gennady S. Bisnovatyi-Kogan +2 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Rotary friction welding of steel E355 and the aluminum alloy EN AW‐6082 can lead to the formation of brittle intermetallic phases. The primary process parameters are varied in order to determine their influence on this intermetallic phase formation and the resulting mechanical properties.
Laura Huber +4 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Ti‐6Al‐4V samples produced by laser‐powder bed fusion are tested for static and dynamic mechanical properties to systematically evaluate the effects of surface roughness and internal porosity when using productivity parameters. The most detrimental impact to fatigue is caused by surface roughness, lack of fusion and keyhole porosity in descending order.
Julian Emanuel Gunther Schulz +4 more
wiley +1 more source
Magnetic Interaction and X-Ray Absorption of the Magnetic Compact Stars [PDF]
Journal of Astronomy and Space Sciences, 1993 Using a simple analytic model based on the MHD stability arguments we obtain the size of the magnetosphere for the magnetic compact stars. We assume the ordered, fieldaligned flow in the magnetosphere and estimate the wellknown Alfven radius.
Yonggi Kim
doaj
Advanced Engineering Materials, EarlyView.Steel samples are investigated using complementary simulations and measurements. Transmission electron microscopy in bright‐field mode, combined with energy‐dispersive X‐ray spectroscopy maps for titanium and niobium, reveals distinct particle populations. Simulations reproduce these in size and composition.
Marc Laub +3 more
wiley +1 more source
Applied SciencesA battery track engineering vehicle faces challenges such as derailment and other safety concerns when navigating an R20m minimum radius curve, primarily owing to its low vertical and horizontal stabilities.
Yang Shen +3 more
doaj +1 more source
On the estimation of the real stability radius 1
IFAC Proceedings Volumes, 1999 Abstract Computationally efficient estimates for the real stability radius of a system matrix are developed for continuous and discrete time systems. The Frobenius norm is used instead of the operator norm and the estimates involve only the stability reserve of the system matrix and the eigenvalues of the Gram matrix of real and imaginary parts of ...
Stanislav V. Emelyanov +4 more
openaire +2 more sources
Microscale 3D Printed Pillars and Porous Polymeric Structures: Manufacturability and Micromechanics
Advanced Engineering Materials, EarlyView.This work demonstrates how two‐photon polymerization enables the fabrication of microscale solid and porous structures from IP‐Q, IP‐S, and IP‐PDMS resins. Combining morphological and mechanical characterization, the study provides the first systematic insights into IP‐Q mechanics and reveals how processing parameters affect structure and stiffness ...
Aikaterini Isaakidou +12 more
wiley +1 more source
European Physical Journal C: Particles and Fields, 2017 A new solution satisfying the Karmarkar condition is presented here. We were first to have discovered a hypergeometric function metric potential representing embedding class I spacetime.
Piyali Bhar +3 more
doaj +1 more source