Results 31 to 40 of about 252,847 (172)
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
A novel physical anthropomorphic breast phantom for 2D and 3D x‐ray imaging
Medical Physics (Lancaster), 2017 Purpose: Physical phantoms are central to the evaluation of 2D and 3D breast‐imaging systems. Currently, available physical phantoms have limitations including unrealistic uniform background structure, large expense, or excessive fabrication time.
L. Ikejimba +6 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
Journal of Applied Clinical Medical Physics, 2017 Purpose Patient‐specific 3D‐printed phantoms have many potential applications, both research and clinical. However, they have been limited in size and complexity because of the small size of most commercially available 3D printers as well as material ...
D. Craft, R. Howell
semanticscholar +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
Abdo-Man: a 3D-printed anthropomorphic phantom for validating quantitative SIRT
EJNMMI Physics, 2016 BackgroundThe use of selective internal radiation therapy (SIRT) is rapidly increasing, and the need for quantification and dosimetry is becoming more widespread to facilitate treatment planning and verification. The aim of this project was to develop an
J. Gear +6 more
semanticscholar +1 more source
Development of a blood oxygenation phantom for photoacoustic tomography combined with online pO2 detection and flow spectrometry [PDF]
, 2019 Photoacoustic tomography (PAT) is intrinsically sensitive to blood oxygen saturation (sO2) in vivo. However, making accurate sO2 measurements without knowledge of tissue- and instrumentation-related correction factors is extremely challenging. We have developed a low-cost flow phantom system to facilitate validation of photoacoustic tomography systems.
arxiv +1 more source
OXA-48-like carbapenemases: the phantom menace.
Journal of Antimicrobial Chemotherapy, 2012 OXA-48-type carbapenem-hydrolysing class D β-lactamases are increasingly reported in enterobacterial species. To date, six OXA-48-like variants have been identified, with OXA-48 being the most widespread.
L. Poirel, A. Potron, P. Nordmann
semanticscholar +1 more source
arXiv, 2006 The exact solutions of electrically charged phantom black holes with the cosmological constant are constructed. They are labelled by the mass, the electrical charge, the cosmological constant and the coupling constant between the phantom and the Maxwell field. It is found that the phantom has important consequences on the properties of black holes.
arxiv