Results 51 to 60 of about 1,231 (130)

A Quantum Electrodynamical Foundation for Molecular Photonics [PDF]

open access: yes, 2001
In this review the authors describe some of the advances in the quantum electrodynamical formulation of theory for molecular photonics. Earlier work has been extended and reformulated for application to real dispersive media—as reflected in the new ...
Allcock, Philip, Andrews, David L
core   +1 more source

Experimental Validation of a Modified Halbach Array for Improved Electrodynamic Suspension Efficiency

open access: yesEnergies
In this work, we present an experimental validation of a modified Halbach array magnet configuration for passive electrodynamic suspension (EDS) systems. The study builds upon previous research that indicated improved lift-to-drag performance and reduced
Tomasz Kublin   +2 more
doaj   +1 more source

Kramers-Kronig relations and causality conditions for graphene in the framework of the Dirac model

open access: yes, 2018
We analyze the concept of causality for the conductivity of graphene described by the Dirac model. It is recalled that the condition of causality leads to the analyticity of conductivity in the upper half-plane of complex frequencies and to the standard ...
Klimchitskaya, G. L.   +1 more
core   +1 more source

Efficiency of immersion mode ice nucleation on surrogates of mineral dust [PDF]

open access: yes, 2007
A differential scanning calorimeter (DSC) was used to explore heterogeneous ice nucleation of emulsified aqueous suspensions of two Arizona test dust (ATD) samples with particle diameters of nominally 0–3 and 0–7 μm, respectively ...
B. Zobrist   +3 more
core   +3 more sources

Signals for Lorentz Violation in Post-Newtonian Gravity [PDF]

open access: yes, 2006
The pure-gravity sector of the minimal Standard-Model Extension is studied in the limit of Riemann spacetime. A method is developed to extract the modified Einstein field equations in the limit of small metric fluctuations about the Minkowski vacuum ...
B. Heckel   +25 more
core   +3 more sources

Case Study of an Integrated Design and Technical Concept for a Scalable Hyperloop System

open access: yesApplied System Innovation
This paper presents the design process and resulting technical concept for an integrated hyperloop system, aimed at realizing efficient high-speed ground transportation.
Domenik Radeck   +11 more
doaj   +1 more source

New and extended parameterization of the thermodynamic model AIOMFAC: calculation of activity coefficients for organic-inorganic mixtures containing carboxyl, hydroxyl, carbonyl, ether, ester, alkenyl, alkyl, and aromatic functional groups [PDF]

open access: yes, 2011
We present a new and considerably extended parameterization of the thermodynamic activity coefficient model AIOMFAC (Aerosol Inorganic-Organic Mixtures Functional groups Activity Coefficients) at room temperature.
Booth, A. M.   +9 more
core   +3 more sources

Technology Variation vs. R&D Uncertainty: What Matters Most for Energy Patent Success? [PDF]

open access: yes
R&D is an uncertain activity with highly skewed outcomes. Nonetheless, most recent empirical studies and modeling estimates of the potential of technological change focus on the average returns to research and development (R&D) for a composite technology
David Popp   +3 more
core  

Levitation electromagnet [PDF]

open access: yes, 2011
Tato bakalářská práce se zabývá magnetickou levitací a vlastním návrhem elektromagnetu. Při návrhu elektromagnetu je kladen požadavek na minimální objem konstrukce a je proveden dvěma způsoby.
Kadlec, Michal
core  

Feedback control unit with an inerter proof-mass electrodynamic actuator

open access: yes
In this study the use of an inerter is considered for active vibration control of a structure excited by white noise. The structure is modelled as a single degree of freedom system and the control system consists of a vibration absorber with a mass ...
Zilletti, M.
core   +1 more source

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