Browsing 007 Πολυτεχνική Σχολή / Faculty of Engineering by Title
Now showing items 1969-1988 of 5269
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Gain Enhancement of Wideband Metamaterial-Loaded Loop Antenna with Tightly Coupled Arc-Shaped Directors
(2017)A wideband and unidirectional loop antenna with enhanced and stable gain is presented. To reduce the size of the antenna, the loop is loaded with three mu-negative (MNG) metamaterial unit-cells. The proposed unit-cells ...
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The Galling Behavior of Advanced Coating Contacts with Aluminium Alloy during Sliding Wear
(2018)This paper investigates the galling behaviour of a range of hard coatings applied to tooling surfaces during the sheet forming of an aluminium alloy workpiece. A total of three types of tooling materials were investigated, ...
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Gallium hydride vapor phase epitaxy of GaN nanowires
(2011)Straight GaN nanowires (NWs) with diameters of 50 nm, lengths up to 10 μm and a hexagonal wurtzite crystal structure have been grown at 900°C on 0.5 nm Au/Si(001) via the reaction of Ga with NH3 and N2:H2, where the H2 ...
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Conference Object
A General Coding Scheme for Signaling Gaussian Processes Over Gaussian Decision Models
(IEEE, 2018)In this paper, we transform the n-finite transmission feedback information (FTFI) capacity of unstable Gaussian decision models with memory on past outputs, subject to an average cost constraint of quadratic form derived ...
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A General Formula for Compound Channel Capacity
(2016)A general formula, for the capacity of arbitrary compound channels with the receiver channel state information, is obtained using the information density approach. No assumptions of ergodicity, stationarity, or information ...
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Conference Object
A general formula for compound channel capacity
(Institute of Electrical and Electronics Engineers Inc., 2015)A general formula for the capacity of arbitrary compound channels, which are not necessarily ergodic, stationary or information-stable, is obtained using the information density approach. A direct (constructive) proof is ...
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A general framework for computing the turbulence structure tensors
(2015)Good measures of the turbulence structure are important for turbulence modeling, flow diagnostics and analysis. Structure information is complementary to the componentality anisotropy that the Reynolds stress tensor carries, ...
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Conference Object
A general framework for continuous time power control in time varying long term fading wireless networks
(2007)In this paper, a general framework for continuous time power control algorithm under time varying long term fading wireless channels is developed. This contrasts most of the power control algorithms introduced in the ...
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Conference Object
General non-stationary models for short-term and long-term fading channels
(Institute of Electrical and Electronics Engineers Inc., 2000)This paper discusses the use of stochastic differential equations to model signal envelope variations over large areas, which are subject to long-term fading effects from the transmitter to local areas, followed by short-term ...
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Conference Object
Generating diverse test sets for multiple fault detections based on fault cone partitioning
(2009)
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Generating proper dynamic models for truck mobility and handling
(2004)The effectiveness and utility of an energy-based model reduction algorithm for two different vehicle system modeling applications are discussed. The first case study focuses on the vehicle dynamics model of a military ...
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Generation and management of construction and demolition waste in Greece - An existing challenge
(2003)
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Conference Object
Generation of a focused electromagnetic field inside a tissue medium by using short baseband pulses
(1998)The possibility to achieve focusing in a three-layer cylindrical biological tissue model, by using concentrically placed TEM waveguide applicators excited by short baseband pulses, is examined rigorously. The medium response ...
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Conference Object
Generation of a focused electromagnetic field inside a tissue medium by using short baseband pulses
(1998)The possibility to achieve focusing in a three-layer cylindrical biological tissue model, by using concentrically placed TEM waveguide applicators excited by short baseband pulses, is examined rigorously. The medium response ...
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Conference Object