Πλοήγηση ανά Θέμα "Physics, Applied"
Αποτελέσματα 1-20 από 37
-
A 3-d hybrid Jiles-Atherton/Stoner-Wohlfarth magnetic hysteresis model for inductive sensors and actuators
(2006)The Jiles-Atherton (JA) theory of hysteresis is currently used in the majority of commercial CAD tools, mainly due to its implementation simplicity in fast and stable algorithms. The JA model provides precise results in ... -
Acoustic detection of microbubble resonance
(2009)Large numbers of acoustic signals from single lipid-shelled Definity (R) microbubbles have been measured using a calibrated microacoustic system and a two population response observed. Theoretical results based on the ... -
Adjustable Hyperthermia Response of Self-Assembled Ferromagnetic Fe-MgO Core-Shell Nanoparticles by Tuning Dipole-Dipole Interactions
(2012)The Fe-MgO core-shell morphology is proposed within the single-domain nanoparticle regime as an enhanced magnetically driven hyperthermia carrier. The combinatory use of metallic iron as a core material together with the ... -
BIOFUNCTIONALIZATION OF PET/SiO2 SURFACES FOR SINGLE MOLECULE EXPERIMENTS AND MEDICAL APPLICATIONS
(2011)PET/SiO2 layers were chemically modified to maintain immobilization of functional single molecules. GFP molecules provide an ideal system due to their stability and intrinsic fluorescence. GFP in vivo biotinylated within ... -
Computational and experimental study of gas flows through long channels of various cross sections in the whole range of the Knudsen number
(2009)A computational and experimental study has been performed for the investigation of fully developed rarefied gas flows through channels of circular, orthogonal, triangular, and trapezoidal cross sections. The theoretical- ... -
A computational study of austenite formation kinetics in rapidly heated steels
(2007)Surface hardening of steels involves rapid austenitization and subsequent quenching of the surface. The resulting extent of hardening largely depends on the rate of austenitization of the surface under the applied high ... -
Design of steady-state isothermal gas distribution systems consisting of long tubes in the whole range of the Knudsen number
(2011)A novel algorithm is developed to solve steady-state isothermal vacuum gas dynamics flows through pipe networks consisting of long tubes based on linear kinetic theory. For a pipe network of known geometry the algorithm ... -
Effect of novel paint removal processes on the fatigue behavior of aluminum alloy 2024
(1998)Conventional paint removal processes, based on application of chemicals and abrasion, are becoming inadequate for modern aircraft structures. In addition they are associated with severe environmental problems, mainly due ... -
End corrections for rarefied gas flows through capillaries of finite length
(2013)The influence of end effects on rarefied gas flows through moderately long capillaries is investigated by implementing the concept of effective capillary length, representing a sum of the real length of capillary and its ... -
End corrections for rarefied gas flows through circular tubes of finite length
(2014)A method to take into account the influence of the inlet/outlet ends on rarefied gas flows through moderately long capillaries proposed previously [Vacuum 97, 26 (2013)] is applied to gas flows through circular tubes. The ... -
Fabrication of super-hydrophobic surfaces for enhanced stone protection
(2009)In the current study, we demonstrate that the modification of a commercial siloxane protective composition by the addition of silica nanoparticles substantially enhances its protective efficiency and renders the treated ... -
Fe-based nanoparticles as tunable magnetic particle hyperthermia agents
(2013)Magnetic hyperthermia, an alternative anticancer modality, is influenced by the composition, size, magnetic properties, and degree of aggregation of the corresponding nanoparticle heating agents. Here, we attempt to evaluate ... -
A feasibility study of dynamic stress analysis inside a running internal combustion engine using synchrotron X-ray beams
(2013)The present investigation establishes the feasibility of using synchrotron-generated X-ray beams for time-resolved in situ imaging and diffraction of the interior components of an internal combustion engine during its ... -
Fluid Flow at the Nanoscale: How Fluid Properties Deviate from the Bulk
(2013)The studies of fluid flows have been lately transferred to a significant extend at the micro- and the nano-scale, since there is increasing interest in applications that could make possible the construction of systems from ... -
Gas-surface scattering effect on vacuum gas flows through rectangular channels
(2011)Flow of a rarefied gas through a channel of rectangular cross section is investigated numerically and experimentally. Emphasis is given on the study of the molecular scattering law influence at the wall boundary surfaces. ... -
Growth of TiB2 and TiC coatings using pulsed laser deposition
(1997)Refractory coatings of TiC and TiB2 have been grown by pulsed laser deposition on Si(100) and on X155 steel at various substrate temperatures ranging from 40 degrees C-650 degrees C. A pulsed KrF excimer laser was used ... -
Hybrid modeling of time-dependent rarefied gas expansion
(2014)The time evolution of the flow parameters in a system where gas is expanded from a high pressure chamber through a tube toward a low pressure chamber is investigated. During the process, the pressure in the two chambers ... -
Kinetic modeling of a tapered Holweck pump
(2014)The Holweck pump is a device widely used in many pumping systems. It can be a self-standing device or part of a multi-stage system, usually combined with a turbo-molecular pump (TMP). In the present work, an existing ... -
Laser-beam carburizing of low-alloy steels
(2001)The present study investigated the use of a laser-beam, in order to carburize the surface of DIN 15CrNi6 low-alloy, case-hardening steel. The surface of the material was coated with graphite prior to laser irradiation. Two ... -
Lateral correlation length of magnetization reversal in thin magnetic films
(2005)We determine the lateral correlation length L of the magnetization reversal process in thin magnetic films. For this purpose, we have devised an experimental system, which allows tuning of the effective disorder level by ...