Bubble temperature data for phenol-alcohol systems: Phenol-I-Amyl alcohol and phenol-n-Amyl alcohol systems

In order to supplement the literature data on VLE, isobaric bubble temperature data were collected for the binary systems phenol-i-amyl alcohol and phenol-n-amyl alcohol over the entire composition range by indirect method using a standard Swietoslawski type ebulliometer. The measurements were made at three sub-atmospheric pressures. The experimental t-x data were correlated with both equation of state method and gamma-phi methods. In the former approach, the Soave equation of state is used, whereas in the latter case Wilson, NRTL and UNIQUAC equations are used.     

Cooperative Communication Enabled Cognitive Radio in a Home-Care Application

Wireless Personal Communications - In this paper, cooperative communication (CC) assisted cognitive wireless sensor network (CWSN) is presented for monitoring health and activity of an end-user in...     

Shape invariance and a universal form for the Gouy phase

It is shown that Hermite-Gaussian beams, Laguerre-Gaussian beams, and certain linear combinations thereof are the only finite-energy coherent beams that propagate, on free propagation, in a shape-invariant manner. All shape-invariant beams have Gouy phase of the universal c arctan(z/zR) form, with quantized values for the prefactor c. It is also shown that, as limiting cases, even two- and three-dimensional nondiffracting beams belong to this class when the Rayleigh distance goes to infinity. The results are deduced from the transport-of-intensity equations, by elementary means as well as by use of the Iwasawa decomposition. A pivotal role in the analysis is the finding that the only possible change in the phase front of a shape-invariant beam from one transverse plane to another is quadratic.     

Contribution towards the glyceride structure of kamala seed oil

Kamala (Mallotus philippinensis) oil was crystallized using acetone at temperatures progressively lowered from ambient to −15C. The five fractions thus obtained were subjected to intensive analysis using a variety of methods. These included thin layer chromatography before and after hydrogenation, cryoscopic mean molecular wt determination, fatty acid analysis by ultraviolet absorption and by gas liquid chromatography of the hydrogenated silylated esters, determination of total unsaturation using the Rosenmund-Kuhnhenn reagent, hydroxyl value determination, nuclear magnetic resonance, lipase hydrolysis, ester number determination both as ferric hydroxamate complexes and infrared absorption, and glycerol determination by silylation followed by gas liquid chromatography. The evidence is consistent with the presence in kamala seed oil of polyacid glycerides carrying from 3 to 8 fatty acids.