Results 81 to 90 of about 814,209 (291)
Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley +1 more source
Rocky Mountain Journal of Mathematics, 1984 [For part I see Bull. Soc. Math. Fr., Suppl., Mèm. 59, 115-123 (1979; Zbl 0407.10017).] Ein System von r quadratischen Formen in n Variablen über einem Körper F wird als quadratische Abbildung \(q: V\to W\) aufgefaßt, wobei \(\dim_ F V=n\), \(\dim_ F W=r\) ist.
openaire +3 more sources
State Estimation in Nonlinear Quadratic Systems
IFAC Proceedings Volumes, 2010 Abstract The problem of the state estimation of nonlinear quadratic systems is addressed in this paper. Given an assigned polytopic region of the state space, which is enclosed into the domain of attraction of the zero equilibrium point, the main result consists of a sufficient condition for the existence of an observer which guarantees that the ...
Amato, F., Cosentino, C., Merola, A.
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies +2 more
wiley +1 more source
Circuit analog of quadratic optomechanics
, 2014 We propose a superconducting electrical circuit that simulates a quadratic optomechanical system. A capacitor placed between two transmission-line (TL) resonators acts like a semi-transparent membrane, and a superconducting quantum interference device ...
Johansson, J. R. +2 more
core +1 more source
Solubility of Systems of Quadratic Forms [PDF]
Bulletin of the London Mathematical Society, 1997 We derive an upper bound for the least number of variables needed to guarantee that a system of t quadratic forms (t>=2) over a field F has a nontrivial zero. In particular, if F is a local field, then 2t^2+3 variables insure the existence of a nontrivial zero (2t^2+1 if t is even), while if F=Q_p with p>=11, then 2t^2-2t+5 variables suffice (2t ...
openaire +3 more sources
Advanced Engineering Materials, EarlyView.A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič +7 more
wiley +1 more source
Existence and Stability of Propagating Fronts for an Autocatalytic Reaction-Diffusion System
, 1997 We study a one-dimensional reaction-diffusion system which describes an isothermal autocatalytic chemical reaction involving both a quadratic (A + B -> 2B) and a cubic (A + 2B -> 3B) autocatalysis.
Aronson +26 more
core +4 more sources
Photoswitching Conduction in Framework Materials
Advanced Functional Materials, EarlyView.This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez +4 more
wiley +1 more source
Immunizing Conic Quadratic Optimization Problems Against Implementation Errors [PDF]
We show that the robust counterpart of a convex quadratic constraint with ellipsoidal implementation error is equivalent to a system of conic quadratic constraints.
Ben-Tal, A., Hertog, D. den
core +1 more source