Results 71 to 80 of about 3,599 (302)

Electrified Damage in Motion Systems

Advanced Engineering Materials, EarlyView.
The electrified damage in motion systems is a fundamental framework presenting the degradation pathway arising from the coupling of electrical energy transport with mechanical contact and interfacial chemistry. The framework positions electrified damage as a distinct degradation regime with unique characteristic surface morphologies and failures of ...
M. Humaun Kabir, Angelina Nguyen, Hong Liang   +2 more
wiley   +1 more source

Dissipative operators on Banach spaces [PDF]

, 2007
A bounded linear operator T on a Banach space is said to be dissipative if ‖etT‖⩽1 for all t⩾0. We show that if T is a dissipative operator on a Banach space, then:(a)limt→∞‖etTT‖=sup{|λ|:λ∈σ(T)∩iR}.(b)If σ(T)∩iR is contained in [−iπ/2,iπ/2], thenlimt ...
Mustafayev, Heybetkulu, Heybetkulu Mustafayev   +1 more
core   +1 more source

Dissipative operators and series inequalities [PDF]

Bulletin of the Australian Mathematical Society, 1981
Of concern is the best constant K in the inequality ‖Ax‖2 ≤ K‖A2x‖‖x‖ where A generates a strongly continuous contraction semigroup in a Hilbert space. Criteria are obtained for approximate extremal vectors x when K = 2 (K ≤ 2 always holds). By specializing A + I to be a shift operator on a sequence space, very simple proofs of Copson's recent results ...
Gindler, Herbert A., Goldstein, Jerome A.   +1 more
openaire   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Linear Combinations of the Volterra Dissipative Operator and Its Adjoint Operator [PDF]

, 2013
У сепарабельному гільбертовому просторі вивчаються спектральні властивості лінійних комбінацій вольтеррового дисипативного оператора та спряженого з ним.We study the spectral properties of linear combinations of the Volterra dissipative operator and its ...
Олефир, Е.И., Тарасенко, А.А., Губреев, Г.М.   +2 more
core  

A correlation between two pairs of linear relations and dissipative extensions of some nondensely defined symmetric operators

Karpatsʹkì Matematičnì Publìkacìï, 2009
A general form of a maximal dissipative subspace extension (in particularly of an operator extension) of a finite-dimensional nondensely defined restriction of a symmetric operator with arbitrary defect numbers is established.
O. G. Storozh
doaj  

Asymptotic behavior of a system of micropolar equations

Electronic Journal of Qualitative Theory of Differential Equations, 2016
This work is concerned with three-dimensional micropolar fluids flows in a bounded domain with boundary of class $C^{\infty}.$ Based on the theory of dissipative systems, we prove the existence of a restricted global attractors for local semiflows on ...
Pedro Marin-Rubio, Mariano Poblete-Cantellano, Marko Rojas-Medar, Francisco Torres-Cerda   +3 more
doaj   +1 more source

Multilayer Self‐Limiting Electrospray Deposition via Stepped Voltage Bias

Advanced Engineering Materials, EarlyView.
Self‐limiting electrospray deposition (SLED) uses a high voltage to generate and deposit a charged payload on a target surface. The coating retains its charge, repelling newly arriving material. SLED thickness can be decreased by applying a secondary bias to the target.
Madhuri Deb, S. Rahman Pejman, Alexander Jakimowicz, Jonathan P. Singer   +3 more
wiley   +1 more source

Completeness of the Eigenvectors of a Dissipative Second Order Difference Operator: Dedicated To Lynn Erbe on the Occasion of His 65th Birthday [PDF]

, 2002
In this paper we consider a dissipative linear operator generated in the Hilbert space l(2) by a second order difference expression on the semi-axis (in other words, by an infinite Jacobi matrix) in the Weyl-Hamburger limit-circle case.
Guseinov, GS, Hüseyin, Hüseyin Şirin
core   +1 more source

Krasnosel'skii fixed point theorem for dissipative operators

Electronic Journal of Differential Equations, 2011
In this note, a sufficient condition guaranteing the existence of fixed points in a nonempty, closed convex K for T+S is given, where $T:Ksubset Eo E$ is dissipative and $S:Ko E$ is condensing.
Tian Xiang
doaj