Results 111 to 120 of about 158,314 (299)

Effects of microwave irradiation on the parameters of hydrogel contact lenses

open access: yes, 2001
Ten brands of hydrogel contact lenses were selected from five of the six British Approved Name lens classification groups to test in vitro the effects of repeated heat disinfection by means of microwave irradiation.
Crabbe, A, Thompson, P
core  

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

open access: yesAdvanced 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

Simple derivation of stability radius of multivariatesystems

open access: yesElectronics Letters, 1997
The authors show that stability radii of discrete multivariate systems can be derived in a straightforward fashion by applying the maximum modulus principle for holomorphic functions of several complex variables.
H. Hasegawa, I. Yamada, K. Sakaniwa
openaire   +1 more source

Simply-connected vortex-patch shallow-water quasi-equilibria

open access: yes, 2014
This work is supported by a UK Natural Environment Research Council studentshipWe examine the form, properties, stability and evolution of simply-connected vortex-patch relative quasi-equilibria in the single-layer ƒ-plane shallow-water model of ...
Dritschel, David Gerard, Plotka, Hanna
core   +1 more source

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

open access: yesAdvanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li   +5 more
wiley   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal   +4 more
wiley   +1 more source

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

open access: yesAdvanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut   +16 more
wiley   +1 more source

Distal Radius Allograft for Glenoid Reconstruction in Anterior Shoulder Instability With Significant Glenoid Bone Loss

open access: yesArthroscopy Techniques
Critical glenoid bone loss in the setting of glenohumeral instability presents a challenging problem for shoulder surgeons. In these cases, bone augmentation procedures are necessary to reconstruct the native glenoid and to maintain stability and ...
Mohamad Y. Fares, M.D., M.Sc.   +4 more
doaj   +1 more source

On quasi-stability of the vector Boolean problem of minimizing absolute deviations of linear functions from zero [PDF]

open access: yesComputer Science Journal of Moldova, 2006
We consider a multi-criterion Boolean programming problem with partial criteria of the kind MIN MODUL of linear functions. We investigate such type of stability which can be understood as a discrete analogue of the Hausdorff lower semi-continuity.
Vladimir A. Emelichev   +1 more
doaj  

Stability Radius And Internal Versus External Stability In Banach Spaces: An Evolution Semigroup Approach

open access: yes, 1998
. In this paper the theory of evolution semigroups is developed and used to provide a framework to study the stability of general linear control systems.
S. Clark   +3 more
core  

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