Abstract The significance of the tracer testing technique is widely accepted in reservoir performance analysis hydrology as well hydrocarbon exploration and production. subsurface delineation for optimum production one most critical aspects petroleum system analysis. quality its prediction require extensive knowledge qualitative geology, depositional environment, facies heterogeneity engineerin...

We derive the markovian description for the nonequilibrium brownian motion of a heated nanoparticle in a simple solvent with a temperature-dependent viscosity. Our analytical results for the generalized fluctuation-dissipation and Stokes-Einstein relations compare favorably with measurements of laser-heated gold nanoparticles and provide a practical rational basis for emerging photothermal trac...

This article reviews available radionuclide-based techniques for glomerular filtration rate (GFR) measurement, focusing on clinical indications for GFR measurement, ideal GFR radiopharmaceutical tracer properties, and the 2 most common tracers in clinical use. Methods for full, 1-compartment, and single-sample renal clearance characterization are discussed. GFR normalization and the role of GFR...

Flow velocity is one of the most important hydrodynamic variables for both channelized (rill and gullies) interrill erosive phenomena. The dye tracer technique to measure surface flow Vs based on measurement travel time a needed cover known distance. measured must be corrected obtain mean V using factor αv = V/Vs which generally empirically deduced. can influenced by method applied dye-tracer v...

Major progress has been made in the development and clinical application of dynamic imaging and tracer kinetic models to accurately measure absolute blood flow and coronary flow reserve (CFR) using quantitative positron emission tomography (PET) myocardial perfusion imaging (MPI) in patients with known or suspected coronary artery disease (CAD).1–6 Assessing CFR provides significantly greater s...

Scanning of the radioactive tracers in the calvarium represents a major advance of diagnostic techniques in the evaluation of intracranial disease. The pioneering work by Moore (18) at Mayo Clinic in 1948 utilized 1311 labeled Di-lodo-fluorescein as the tracer detected by a Geiger-Muller tube. This now primitive system demonstrated a higher concentration of the isotope tracer in the brain tumor...

This paper discusses some of the recent improvements in instrumentation used for stable isotope tracer measurements in the context of measuring retinol stores, in vivo. Tracer costs, together with concerns that larger tracer doses may perturb the parameter under study, demand that ever more sensitive mass spectrometric techniques are developed. GCMS is the most widely used technique. It has hig...

We evaluated the hypothesis that lactate shuttling helps support the nutritive needs of injured brains. To that end, we utilized dual isotope tracer [6,6-(2)H2]glucose, that is, D2-glucose, and [3-(13)C]lactate techniques involving arm vein tracer infusion along with simultaneous cerebral (arterial [art] and jugular bulb [JB]) blood sampling. Traumatic brain injury (TBI) patients with nonpenetr...