Results 61 to 70 of about 49,580 (287)

Well-posedness and Stability for Interconnection Structures of Port-Hamiltonian Type

open access: yes, 2019
We consider networks of infinite-dimensional port-Hamiltonian systems $\mathfrak{S}_i$ on one-dimensional spatial domains. These subsystems of port-Hamiltonian type are interconnected via boundary control and observation and are allowed to be of distinct
Augner, Björn
core   +1 more source

Pick’s theorems for dissipative operators

open access: yesFilomat, 2016
Let H be a complex Hilbert space and let A be a bounded linear transformation on H. For a complex-valued function f, which is analytic in a domain D of the complex plane containing the spectrum of A, let f (A) denote the operator on H defined by means of the Riesz-Dunford integral.
H.M. Srivastava, A.K. Mishra
openaire   +2 more sources

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

open access: yesAdvanced 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

Annihilation operators associated with unstable vacua in non-equilibrium thermo-field dynamics

open access: yesCondensed Matter Physics, 2008
Out of thermal equilibrium state, the vacuum is unstable and evolves in time. Consequently, the annihilation operators associated with the unstable vacuum depend on time.
K. Yoshida, T. Arimitsu
doaj   +1 more source

Spectral estimates for resolvent differences of self-adjoint elliptic operators

open access: yes, 2010
The notion of quasi boundary triples and their Weyl functions is an abstract concept to treat spectral and boundary value problems for elliptic partial differential equations.
Behrndt, Jussi   +2 more
core   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song   +4 more
wiley   +1 more source

Dissipative Dynamics of Quantum Fluctuations

open access: yes, 2015
One way to look for complex behaviours in many-body quantum systems is to let the number $N$ of degrees of freedom become large and focus upon collective observables.
Alicki   +13 more
core   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

THE FINITE SECTION METHOD FOR DISSIPATIVE OPERATORS [PDF]

open access: yesMathematika, 2014
Summary: We show that for self-adjoint Jacobi matrices and Schrödinger operators, perturbed by dissipative potentials in \(\ell^1 (\mathbb N)\) and \(L^1(0,\infty )\), respectively, the finite section method does not omit any points of the spectrum. In the Schrödinger case, two different approaches are presented.
Marco Marletta, Sergey Naboko
openaire   +3 more sources

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