Inference of the boundary layer structure over the oceans from satellite infrared measurements

The characteristics of the boundary layer of the atmosphere over the global oceans between about 50 deg N to 40 deg S were remotely sensed for three different periods, about 3 months each, during the year 1970. The spectral measurements made by Nimbus 4 Infrared Interferometer Spectrometer were used for this purpose

Esters of petroselinic acid containing Trachyspermum copticum seed oil: Potential industrial lubricant base stocks

126-134Trachyspermum copticum seed oil contains volatile oil rich in thymol, which is distilled out and used for medicinal and aromatic formulations. The seed powder after removal of the volatiles loses its importance. However, the fixed oil being rich in unsaturation with petroselinic acid (18:1, Δ6; 68.3%) and linoleic acid (18:2; 25.3%) is used for preparing biolubricant base stocks. Methyl, isopropyl and 2-ethyl hexyl esters of the oil have been converted to epoxides, followed by in situ hydroxylation and acylation using hexanoic and butyric anhydrides. The acylated products have been evaluated for lubricant properties, and are found to exhibit density (0.91-0.97 g/cc); viscosity of 23.5-27.3 cSt at 40°C and 4.85-5.33 cSt at 100°C. The values are comparable to jatropha acylated products. The products exhibited good copper corrosion resistance value of ‘1a’ and high flash points of 230-242°C. The acylated esters with good weld load behavior, and lower wear and pour point values and viscosity indices, 128.84-138.94, can be potential base stocks belonging to group III category lubricants with ISO VG Grade about 22. These products can be further explored for the preparation of hydraulic, metal working and other industrial fluid formulations

A bibliography of parasites and diseases of marine and freshwater fishes of India

With the increasing demand for fish as human food, aquaculture both in freshwater and salt water is rapidly developing over the world. In the developing countries, fishes are being raised as food. In many countries fish farming is a very important economic activity. The most recent branch, mariculture, has shown advances in raising fishes in brackish, estuarine and bay waters, in which marine, anadromous and catadromous fishes have successfully been grown and maintained

Ultrasonic studies of binary mixtures of water+iso-propanol; water+pyridine; iso-propanol+pyridine at 303.15 K

88-95<span style="font-size:15.0pt;mso-bidi-font-size:11.0pt; line-height:115%;font-family:Arial;mso-fareast-font-family:Calibri;color:black; mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">The ultrasonic velocities and densities have been measured for the systems: water + iso-propanol, at 303.15 K. From these data, experimental compressibility have been calculated. Ideal compressibiities and, excess compressibiities have been estimated by thee recently developed expressions. The results have been analyzed on the basis of the variations in ultrasonic velocities. compressibility and excess compressibility. Water- iso-propanol 'clathrate- like’ structures, are observed at lower concentrations of alcohol in water. Water-pyridine complexes have been observed<span style="font-size:15.0pt;mso-bidi-font-size:11.0pt; line-height:115%;font-family:" times="" new="" roman";mso-fareast-font-family:calibri;="" color:black;mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:="" ar-sa"="">, at l<span style="font-size:15.0pt;mso-bidi-font-size:11.0pt; line-height:115%;font-family:Arial;mso-fareast-font-family:Calibri;color:black; mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">ower concentrations of pyridine in water. The presence of weakly bonded alcohol-pyridine structures arc not iced in the binary mixture pyridine + iso-propanol.</span

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