Browsing Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering by Title
Now showing items 2443 of 864

Article
Analytic models of heterogenous magnetic fields for liquid metal flow simulations
(2009)A physically consistent approach is considered for defining an external magnetic field as needed in computational fluid dynamics problems involving magnetohydrodynamics (MHD). The approach results in simple analytical ...

Article
An analytical solution for rapidly distorted turbulent shear flow in a rotating frame
(2006)In this study we apply rapid distortion theory to the case of nonstratified homogeneous turbulence that is sheared in a frame that counterrotates at a rate that matches in magnitude the rotation associated with the mean ...

Conference Object
Analytical target cascading for the design of an advanced technology heavy truck
(American Society of Mechanical Engineers (ASME), 2002)Analytical target cascading (ATC) is a methodology that can be used during the early development stages of large and complex systems for propagating desirable overall product targets to appropriate individual specifications ...

Article
Analyzing a turbulent pipe flow via the onepoint structure tensors: Vorticity crawlers and streak shadows
(2016)Efforts to identify and visualize nearwall structures typically focus on the region y+≳5, where largescale structures with significant turbulent kinetic energy content reside, such as the highspeed and lowspeed streaks ...

Article
Angiotensin inhibition enhances drug delivery and potentiates chemotherapy by decompressing tumour blood vessels
(2013)Cancer and stromal cells actively exert physical forces (solid stress) to compress tumour blood vessels, thus reducing vascular perfusion. Tumour interstitial matrix also contributes to solid stress, with hyaluronan ...

Article
Anisotropy of the optical dielectric function in the ab plane for YBa2Cu3O7
(1992)We report ellipsometric measurements from surfaces of three singlecrystal samples of YBa2Cu3O7. Two of the samples were untwinned with Tc=90 and 66 K. The third sample was a tetragonal single crystal with low oxygen content ...

Article
Anisotropy of the resistivity in the ab plane of a superconducting YBa2Cu3O7δ single crystal
(1996)We have measured the inplane longitudinal resistivities pa and pb as functions of temperature and magnetic field. The measurements were all made on the same detwinned single crystal of YBa2Cu3O7δ (YBCO). Defining Tc to ...

Book Chapter
Application of a New Algebraic StructureBased Model to Rotating Turbulent Flows
(Elsevier, 2005)This chapter discusses application of a new algebraic structurebased model to rotating turbulent flows. A primary goal of Reynolds averaged NavierStokes (RANSbased modeling is to determine the Reynolds stress tensor in ...

Conference Object

Conference Object
ARPES studies of the superconducting gap in hightemperature superconductors
(Affiliation: Argonne Natl. Lab. and Univ. of, Illinois/Chicago, Chicago, IL, USA, United StatesCorrespondence Address: Ding, H.Argonne Natl. Lab. and Univ. of, Illinois/Chicago, Chicago, IL, USAUnited States, 1996)Using high resolution angleresolved photoemission spectroscopy (ARPES), we measure the superconducting gap and its momentum dependence in the high temperature superconductors Bi 2Sr 2CaCu 2O 8 (Bi2212) and YBa 2Cu 3O 6.95 ...

Article
ASBMBSL: An easy access to the structure based model technology
(2011)The Algebraic Structure Based Model (ASBM) offers unique features to represent the Reynolds stress tensor from the underlying turbulent structures. It is usually coupled with a non standard length scale equation. A way of ...

Article
The ASBMSA turbulence closure: Taking advantage of structurebased modeling in current engineering CFD codes
(2015)Structurebased turbulence models (SBM) carry information about the turbulence structure that is needed for the prediction of complex nonequilibrium flows. SBM have been successfully used to predict a number of canonical ...

Article
Assessing the accuracy of wall concentration estimation based on averaged permeate velocity in spacerfilled Reverse Osmosis (RO) membrane systems
(2006)The accuracy of estimations of wall concentration using the constant (averaged) permeate velocity method was assessed in both empty and spacerfilled reverse osmosis (RO) channels under various operation conditions, based ...

Article

Article
Assignment of natural frequencies by an added mass and one or more springs
(2004)The problem of assigning natural frequencies to a multidegreeoffreedom undamped system by an added mass connected by one or more springs is addressed. The added mass and stiffnesses are determined using receptances from ...

Article
Atemplatebased modeling approach for system design: Theory and implementation
(1996)Previous research has developed search algorithms for deducing Proper Models (minimum complexity models with physically meaningful parameters) of dynamic systems. It has also been proposed that these Proper Models can be ...

Article
Atomic Force Microscopy Probing of Cancer Cells and Tumor Microenvironment Components
(2016)Cancer cells have different characteristics from normal cells in terms of morphology, cell–cell interactions, cytoskeleton organization, cell growth rates, and cellextracellular matrix interactions. Although the clarification ...

Article
Automatic dissociation between microvasculature and larger vessels for ultrasound contrast imaging
(2014)

Article
Automatic respiratory gating for contrast ultrasound evaluation of liver lesions
(2014)Dynamic contrastenhanced ultrasound (DCEUS) has been used in radiology for many years for lesion detection and characterization. In recent years, more emphasis has been placed on tumor perfusion quantification with DCEUS. ...

Article
Automatic respiratory gating for perfusion quantification of DCEUS
(2013)A novel automatic respiratory gating (ARG) algorithm for ultrasound is presented. The ARG algorithm was applied on dual contrast imaging (contrast/tissue) loops in order to remove respiratory motion artifacts from dynamic ...