Results 51 to 60 of about 14,047 (249)

Second‐kind Fredholm integral‐equation analysis of scattering by layered dielectric gratings

open access: yesIET Microwaves, Antennas & Propagation, 2021
Scattering of the E‐polarised plane electromagnetic wave from two different but of the same‐period all‐dielectric rectangular bar gratings on substrates is analysed using a volume‐integral‐equation (VIE) method.
Nikolaos L. Tsitsas
doaj   +1 more source

Entrepreneurial Ecosystem Conditions and Sustainable Value Creation: Predictive Evidence From Knowledge‐Intensive Ventures in São Paulo, Brazil

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Entrepreneurial ecosystems (EEs) are systems shaping innovation and sustainable development, yet limited evidence exists on the relative predictive contribution of their components to sustainable value creation. This study examines associations between six EE dimensions and environmental, social and economic value creation among 245 knowledge ...
Damaris Chieregato Vicentin   +4 more
wiley   +1 more source

Discretisation of the velocity-pressure formulation with integrated radial-basis-function networks

open access: yes, 2011
This study is concerned with the use of integrated radial-basis-function networks (IRBFNs) for the discretisation of the velocity-pressure formulation in two dimensions on Cartesian grids. In the approximation of the field variables (i.e.
Thai-Quang, N.   +3 more
core   +1 more source

Experimental validation of convection-diffusion discretisation scheme employed for computational modelling of biological mass transport

open access: yesBioMedical Engineering OnLine, 2010
Background The finite volume solver Fluent (Lebanon, NH, USA) is a computational fluid dynamics software employed to analyse biological mass-transport in the vasculature.
Ku David N   +4 more
doaj   +1 more source

A Code‐Invariant QSG–VGA Co‐Design Methodology for Compact CMOS Vector‐Sum Phase Shifters

open access: yesInternational Journal of Circuit Theory and Applications, EarlyView.
A circuit‐level co‐design methodology for compact vector‐sum phase shifters is presented, combining a code‐invariant common‐gate variable‐gain amplifier (VGA) with a resistorless quadrature signal generator (QSG). By maintaining an almost constant input resistance, explicit resistors are eliminated from the QSG.
Uxua Esteban Eraso   +4 more
wiley   +1 more source

Create accurate numerical models of complex spatio-temporal dynamical systems with holistic discretisation [PDF]

open access: yes, 2005
This dissertation focuses on the further development of creating accurate numerical models of complex dynamical systems using the holistic discretisation technique [Roberts, Appl. Num. Model., 37:371-396, 2001].
MacKenzie, Tony
core  

Computational form-finding methods for fabric structures [PDF]

open access: yes, 2008
Form-finding is a process that determines the surface configuration of a fabric structure under prestress. This process can be carried out using a variety of numerical methods, of which the most common are (a) transient stiffness, (b) force density, and (
Lewis, W. J. (Wanda J.)
core   +1 more source

Discretisation Strategies in Architectural Design Process: A Procedural Classification System

open access: yes, 2023
This academic study offers a thorough exploration of prevailing discretisation methods, complemented by a detailed appraisal of their essential attributes, with the objective of proposing a system for classifying discretisation strategies.
ZamaniGoldeh, E (via Mendeley Data)
core   +1 more source

Black holes, quantum chaos, and the Riemann hypothesis

open access: yesSciPost Physics Core, 2021
Quantum gravity is expected to gauge all global symmetries of effective theories, in the ultraviolet. Inspired by this expectation, we explore the consequences of gauging CPT as a quantum boundary condition in phase space. We find that it provides for
Panagiotis Betzios, Nava Gaddam, Olga Papadoulaki
doaj   +1 more source

Glazing Effects on Dynamic‐Insulation TSC Façades: A CFD‐Supported Experimental Study of Flow, Heat Transfer, and Ventilation Preheating

open access: yesEnergy Science &Engineering, EarlyView.
Glazed transpired solar collectors achieve 48–75% efficiency and 11% more seasonal heat than unglazed designs by cutting convective losses, while both offer complementary benefits for ventilation preheating and dynamic wall insulation, with paybacks of 5.5–6.8 years.
Mohammad Fawaier   +7 more
wiley   +1 more source

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