Results 21 to 30 of about 530,939 (289)
Compartmental analysis of dynamic nuclear medicine data: models and identifiability [PDF]
, 2016 Compartmental models based on tracer mass balance are extensively used in clinical and pre-clinical nuclear medicine in order to obtain quantitative information on tracer metabolism in the biological tissue.
Delbary, Fabrice +2 more
core +2 more sources
Tracer Dispersion in Rough Open Cracks [PDF]
, 1998 Tracer dispersion is studied in an open crack where the two rough crack faces have been translated with respect to each other. The different dispersion regimes encountered in rough-wall Hele-Shaw cell are first introduced, and the geometric dispersion ...
Hulin, Jean-Pierre +2 more
core +3 more sources
Raman Nanotags‐Guided Intraoperative Sentinel Lymph Nodes Precise Location with Minimal Invasion
Advanced Science, 2022 The accurate positioning of sentinel lymph node (SLN) by tracers during surgery is an important prerequisite for SLN biopsy. A major problem of traditional tracers in SLN biopsy is the short surgery window due to the fast diffusion of tracers through the
Binge Deng +5 more
doaj +1 more source
Nonlinear Response of Inertial Tracers in Steady Laminar Flows: Differential and Absolute Negative Mobility [PDF]
, 2016 We study the mobility and the diffusion coefficient of an inertial tracer advected by a two-dimensional incompressible laminar flow, in the presence ofthermal noise and under the actionof an external force.
Cecconi, F +3 more
core +2 more sources
Enhanced tracer transport by the spiral defect chaos state of a convecting fluid [PDF]
, 2004 To understand how spatiotemporal chaos may modify material transport, we use direct numerical simulations of the three-dimensional Boussinesq equations and of an advection-diffusion equation to study the transport of a passive tracer by the spiral defect
C. A. J. Fletcher +8 more
core +2 more sources
Remote Sensing, 2019 The movement of contaminants and biota within river channels is influenced by the flow field via various processes of dispersion. Understanding and modeling of these processes thus can facilitate applications ranging from the prediction of travel times ...
Carl J. Legleiter +3 more
doaj +1 more source
Vacancy diffusion in the Cu(001) surface II: Random walk theory [PDF]
, 2001 We develop a version of the vacancy mediated tracer diffusion model, which follows the properties of the physical system of In atoms diffusing within the top layer of Cu(001) terraces.
Abramowitz +14 more
core +3 more sources
Diagnostics, 2021 Tumor blood flow (TBF) is related to drug delivery and hypoxia, both of which can impact the efficacy of anti-cancer therapies. Although integrin αvβ3 expression is related to tumor angiogenesis, it remains unclear whether the degree of angiogenesis ...
Kosuke Mitsuyuki +6 more
doaj +1 more source
Large Deviations in Single File Diffusion [PDF]
, 2014 We apply macroscopic fluctuation theory to study the diffusion of a tracer in a one-dimensional interacting particle system with excluded mutual passage, known as single-file diffusion. In the case of Brownian point particles with hard-core repulsion, we
Krapivsky, P. L. +2 more
core +2 more sources
Spray nozzle performance on wheat
Agrociencia, 2020 Fungal diseases in wheat crops (Triticum aestivum) cause significant yield and quality grain losses worldwide. The increase in the crop production area under no-tillage and environmental changes has favored residue-borne fungal survival and, therefore ...
Matilde Mur +5 more
doaj +1 more source