We propose a density-functional theory (DFT) describing inhomogeneous polymer-carbon dioxide mixtures based on a perturbed-chain statistical associating fluid theory equation of state (PC-SAFT EOS). The weight density functions from fundamental measure theory are used to extend the bulk excess Helmholtz free energy to the inhomogeneous case. The additional long-range dispersion contributions ar...

This work describes the development of a new 3D ultrasonic imaging method that combines different beamforming techniques (Phased Array -PAand Synthetic Aperture Focusing Technique -SAFT-). The proposed methodology uses a silicone mask along the x-axis to produce a wide beam in the array width direction (y-axis). Then, a coherent-spatial composition of several phased array B-scan images is imple...

In automatic, retargetable compilation low-cost, analytic cost estimation techniques are crucial in order to e ciently steer the optimization process. Programming models aimed at optimum expressiveness of parallelism, however, are not amenable to static cost estimation. We present a new coordination model, called SPC, that imposes speci c restrictions in the synchronization structures that can ...

The organization of ribosomal protein genes and the gene (fus) for a protein chain elongation factor, EF G, in Escherichia coli were studied with a merodiploid strain that has an episome with genetic markers, ery(r), spc(r), str(r), and fus(r), and a chromosome with markers ery(s), spc(s), str(s), and fus(s). The ery locus determines a 50S ribosomal protein and the spc and str loci determine 30...

Three experiments were conducted to determine standardized ileal digestibility (SID) of CP and AA, DE and ME, and apparent total tract digestibility (ATTD) and standardized total tract digestibility (STTD) of P in a new source of soy protein concentrate (SPC) and in soybean meal (SBM). In Exp. 1, 9 barrows (initial BW: 13.08 ± 1.98 kg) were prepared with a T-cannula in the distal ileum and allo...

The SAFT-VR equation of state is combined with a semi-continuous thermodynamic approach to model several synthetic and crude oil systems. In our approach, the oil fractions are defined by a continuous distribution that is then represented as discrete pseudo-components using the Gaussian quadrature method. The SAFT-VR parameters for the pseudo-components are obtained from simple linear relations...

An extensive comparison of SRK, CPA, and PC-SAFT for the speed of sound in normal alkanes has been performed. The results reveal that PC-SAFT captures the curvature of the speed of sound better than cubic EoS, but the accuracy is not satisfactory. Two approaches have been proposed to improve PC-SAFT’s accuracy for speed of sound: (i) putting speed of sound data into parameter estimation; (ii) p...

Vapor–liquid interfacial tension of square-well ~SW! fluids is calculated using three different methods viz., molecular dynamics ~MD! with collision-based virial evaluation, Monte Carlo with virial computed by volume perturbation, and Binder’s density-distribution method in conjunction with grand-canonical transition-matrix Monte Carlo ~GC-TMMC!. Three values of the SW attractive well range par...

In this work, the solubilities of pharmaceutical cocrystals in solvent/anti-solvent systems were predicted using PC-SAFT in order to increase the efficiency of cocrystal formation processes. Modeling results and experimental data were compared for the cocrystal system nicotinamide/succinic acid (2:1) in the solvent/anti-solvent mixtures ethanol/water, ethanol/acetonitrile and ethanol/ethyl acet...

Because of the need of rapid detection of internal defects and embedded object in concrete structures, a ultrasonic detecting method with linear array transducers is presented here, which is the high-resolution and efficient imaging technique for concrete materials by combining with synthetic aperture focusing technique (SAFT). At first, simulation data of array detection are processed to be am...