Flow dynamic environment data base development for the SSME

The fluid flow-induced vibration of the Space Shuttle main engine (SSME) components are being studied with a view to correlating the frequency characteristics of the pressure fluctuations in a rocket engine to its operating conditions and geometry. An overview of the data base development for SSME test firing results and the interactive computer software used to access, retrieve, and plot or print the results selectively for given thrust levels, engine numbers, etc., is presented. The various statistical methods available in the computer code for data analysis are discussed. Plots of test data, nondimensionalized using parameters such as fluid flow velocities, densities, and pressures, are presented. Results are compared with those available in the literature. Correlations between the resonant peaks observed at higher frequencies in power spectral density plots with pump geometry and operating conditions are discussed. An overview of the status of the investigation is presented and future directions are discussed

Kinetics of Oxidation of Phenols by Acid Bromate

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Waitlist Priority for Patients with Acute-on-Chronic Liver Failure: Not Just Horseplay

Acute on chronic liver failure (ACLF) is a syndrome of systemic inflammation and multiple organ system failures that is associated with a significantly high 28-day mortality ranging from 15-89%,(1) and which is increasing in prevalence in the United States and globally.(2) Although several definitions for ACLF exist, it is generally agreed upon that this condition yields greater non-transplant mortality than mere decompensated cirrhosis. The EASL-CLIF definition of ACLF categorizes patients according to the number of organ failures present, specifically as 1 organ failure (ACLF-1), 2 organ failures (ACLF-2) and 3 or more organ failures (ACLF-3).(1) Liver transplantation (LT) remains the only life-saving intervention in this population, especially among those with ACLF-3

Commercially exploited edible bivalves off Mumbai

Bivalves are benthic molluscs occurring in intertidal to subtidal areas. In the food chain they feed low, mainly on plankton and detritus, which are abundantly available in the natural waters circulated by the tides . . Many species of bivalves occur abundantly along the Indian coast of which at least 50 species are commercially important. Edible oysters, clams, cockles, mussels and scallops are the prime groups, which contribute towards the fishery in the marine, estuarine and freshwater habitats