Results 51 to 60 of about 270,605 (207)
Three‐dimensional printing of MRI‐visible phantoms and MR image‐guided therapy simulation
Magnetic Resonance in Medicine, 2017 To demonstrate the use of anatomic MRI‐visible three‐dimensional (3D)‐printed phantoms and to assess process accuracy and material MR signal properties.
D. Mitsouras +6 more
semanticscholar +1 more source
Phantom Dark Energy and its Cosmological Consequences [PDF]
, 2007 I discuss the dark energy characterized by the violation of the null energy condition ($\varrho + p \geq 0$), dubbed phantom. Amazingly, it is admitted by the current astronomical data from supernovae. We discuss both classical and quantum cosmological models with phantom as a source of matter and present the phenomenon called phantom duality.
arxiv +1 more source
Inflation is the generic feature of phantom field-not the big-rip [PDF]
Int.J.Mod.Phys.A22:1301-1316,2007, 2006 A class of solutions for phantom field corresponding to a generalized k-essence lagrangian has been presented, employing a simple method which provides the scope to explore many such. All the solutions having dynamical state parameter are found to touch the magic line w = -1, asymptotically.
arxiv +1 more source
The impact of vaporized nanoemulsions on ultrasound-mediated ablation [PDF]
, 2013 BACKGROUND: The clinical feasibility of using high-intensity focused ultrasound (HIFU) for ablation of solid tumors is limited by the high acoustic pressures and long treatment times required.
Kopechek, Jonathan A. +2 more
core +1 more source
Biologically relevant photoacoustic imaging phantoms with tunable optical and acoustic properties
Journal of Biomedical Optics, 2016 . Established medical imaging technologies such as magnetic resonance imaging and computed tomography rely on well-validated tissue-simulating phantoms for standardized testing of device image quality.
W. Vogt +5 more
semanticscholar +1 more source
Phantom Energy Accretion onto Black Holes in Cyclic Universe [PDF]
Phys.Rev.D78:064060,2008, 2008 Black holes pose a serious problem in the cyclic or oscillating cosmology. It is speculated that, in the cyclic universe with phantom turnarounds, black holes will be torn apart by the phantom energy before turnaround before they can create any problems.
arxiv +1 more source
Interacting new agegraphic Phantom model of dark energy in non-flat universe [PDF]
, 2009 In this paper we consider the new agegraphic model of interacting dark energy in non-flat universe. We show that the interacting agegraphic dark energy can be described by a phantom scalar field. Then we show this phantomic description of the agegraphic dark energy and reconstruct the potential of the phantom scalar field.
arxiv +1 more source
Phantom Accretion by Black Holes and the Generalized Second Law of Thermodynamics [PDF]
Astropart.Phys.33:292-295,2010, 2008 The accretion of a phantom fluid with non-zero chemical potential by black holes is discussed with basis on the Generalized Second Law of thermodynamics. For phantom fluids with positive temperature and negative chemical potential we demonstrate that the accretion process is possible, and that the condition guaranteeing the positiveness of the phantom ...
arxiv +1 more source
About the domino problem in the hyperbolic plane, a new solution: complement [PDF]
, 2007 In this paper, we complete the construction of paper arXiv:cs.CG/0701096v2. Together with the proof contained in arXiv:cs.CG/0701096v2, this paper definitely proves that the general problem of tiling the hyperbolic plane with {\it \`a la} Wang tiles is ...
Berger +19 more
core +7 more sources
Fabrication of Two Flow Phantoms for Doppler Ultrasound Imaging
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2017 Flow phantoms are widely used in studies associated with Doppler ultrasound measurements, acting as an effective experimental validation system in cardiovascular-related research and in new algorithm/instrumentation development.
Xiaowei Zhou +4 more
semanticscholar +1 more source