Porosity and saturation are fundamental sedimentary properties that affect both seismic wave propagation and appraisal development and production of an oil field. Traditionally, these parameters have been estimated from seismic impedances and velocities using Biot-Gassman theory and/or or porosity-velocity relationships. However, when using theory to relate surface seismic attributes to reservo...

Abatrati-An analysis is presented of a binary film with fog formation and a negligible induced velocity (traditionally referred to as “Stefan-Nusselt flow”). The governing equations of energy and diffusion, coupled with the saturation con@on, are solved and analytical correction factors are derived. Subsequently, the “negligible induced velocity” (NIV) fog film model is applied to channel flow,...

background: the vascular response to recurrent tissue hypoxia and reperfusion following red blood cell sickling causes acute chest syndrome and chronic lung disease. the purpose of this study was to determine the pattern of chronic lung lesions and possible risk factors in sickle cell patients in lagos, nigeria.methods: from july 2012 to april 2013, pulmonary function test (pft) and chest-x-ray...

The technique of velocity modulation spectroscopy has recently been combined with cavity enhancement and frequency modulation methods into a technique called noise-immune cavity-enhanced optical heterodyne velocity modulation spectroscopy (NICE-OHVMS). We have implemented NICE-OHVMS with a cw-optical parametric oscillator (OPO) tunable from 3.2 to 3.9 lm, and used it to record spectra of the R(...

OBJECTIVE To investigate changes in cognitive function following carotid endarterectomy (CEA). DESIGN Prospective study with controls. METHODS CEA patients (n=159) were compared to a urology surgery control group (n=20). In CEA patients cerebrovascular reserve (CVR) was measured preoperatively. During surgery emboli and blood flow velocity in the middle cerebral artery were measured by tran...

A novel velocity-matched distributed balanced photodetector with a 50coplanar waveguide output transmission line has been experimentally demonstrated in the InP/InGaAs material system. Distributed absorption and velocity matching are employed to increase the saturation photocurrent. A commonmode rejection ratio greater than 27 dB has been achieved. The radio-frequency (RF) link experiment condu...

Investigation of the final hadronic state properties of ultrarelativistics pp and Au+Au collisions supplies information on freeze-out conditions at RHIC and possible insights into early stages of these collisions. A variety of particle spectra measured by STAR are studied within the framework of chemical and local kinetic equlibrium models. Here we present the extracted chemical and final kinet...

A novel velocity-matched distributed balanced photodetector operating at 1.3 and l.55p.tm wavelengths has been experimentally demonstrated. Distributed absorption and velocity matching ofthe optical and microwave signals are employed to achieve high saturation photocurrent. A common mode rejection ratio greater than 27 dB has been achieved over a wide range of photocurrents. More than 24dB supp...