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Now showing items 55361-55370 of 66811
Validation/enhancement of the "Jones-Owens" technique for the prediction of permeability in low permeability gas sands
(Texas A&M University, 2007-09-17)
This work presents the validation and enhancement of existing correlations for estimating and predicting
the permeability in low permeability gas sands. The "original" problem of predicting the corrected or
"liquid equivalent" ...
Analysis and Simulation of Mechanical Trains Driven by Variable Frequency Drive Systems
(2012-02-14)
Induction motors and Variable Frequency Drives (VFDs) are widely used in industry to drive machinery trains. However, some mechanical trains driven by VFD-motor systems have encountered torsional vibration problems. This ...
Observations from Experimental Acid Jetting on Limestone Carbonates
(2014-12-03)
Well stimulation is a common practice in petroleum engineering, applied when the production does not meet expectations. Acid jetting is one of the acid stimulation methods, used in carbonate reservoirs where formation ...
Decision matrix for liquid loading in gas wells for cost/benefit analyses of lifting options
(Texas A&M University, 2008-10-10)
Field-proven solutions already exist to reduce the loss of gas production when
liquid loading begins to occur. However, the choice of remedial technique, its feasibility,
and its cost, vary considerably depending on a ...
Critical Environmentalism - Towards an Epistemic Framework for Architecture
(2010-01-16)
Upon identifying the multifaceted and disparate array of ever-changing
environmental informants to architectural discourse, one is confronted with how to unite
this dialogue in meaningful ways to current modes of thought ...
Discrete Event Model Development of Pilot Plant Scale Microalgae Facilities: An Analysis of Productivity and Costs
(2011-10-21)
America's reliance on foreign oil has raised economic and national security issues, and in turn the U.S. has been active in reducing its dependence on foreign oil to mitigate these issues. Also, the U.S. Navy has been ...
Power Electronic Solutions for Interfacing Offshore Wind Turbine Generators to Medium Voltage DC Collection Grids
(2016-01-07)
Here in the early 21st century humanity is continuing to seek improved quality of life for citizens throughout the world. This global advancement is providing more people than ever with access to state-of-the-art services ...
A fourth-order symplectic finite-difference time-domain (FDTD) method for light scattering and a 3D Monte Carlo code for radiative transfer in scattering systems
(2009-06-02)
When the finite-difference time-domain (FDTD) method is applied to light scattering
computations, the far fields can be obtained by either a volume integration method,
or a surface integration method. In the first study, ...
Structure-property relationships in gas-phase protonated and metalated peptide ions
(2009-05-15)
Peptide synthesis and metal doping, combined with mass spectrometric and ion
mobility spectrometric techniques, have provided a picture of the fragmentation behavior
of a large field of homologous peptide ions, represented ...
Heterosis and Heterosis Retention for Reproductive and Maternal Traits in Nellore-Angus Crossbred Cows
(2013-07-08)
Calving rate, weaning rate, birth weight, weaning weight, and ADG from 1997 to 2011 were investigated in Angus, Nellore, F_(1) Nellore-Angus, first generation 3/8 Nellore 5/8 Angus produced as following: (1/2 Nellore 1/2 ...