A Rotating Test-Tube Apparatus for Experimental Fermentations

Experimental and Computational Study on Hydrodynamic of a Downscaled Mini Vessel USP Dissolution Test Apparatus II

Although not listed on the United States Pharmacopeia (USP), like standard USP 2, small volume USP 2 dissolution apparatus has gained a great deal of attention, especially for cases where small amount of drug product is available for testing in research and design step or evaluations are to be made on a tablet containing trace amounts of the active pharmaceutical ingredient. In this work, first...

An Apparatus for the Evaporation of Liquids in a Test-tube. by Milan A. Logan.*

The following procedure and apparatus were designed primarily to permit the evaporation of foamy liquids such as urine in 200 X 20 mm. test-tubes so that ashing and subsequent precipitation of one of the constituents of the solution could be carried out in the same tube. The procedure consists in heating the test-tube containing the liquid to be evaporated in a suitable bath maintained approxim...

Rotating Combustion Chamber for Rocket Apparatus

Transient thermal study of recuperative tube in tube heat exchanger operating in refrigeration system using experimental test and mathematical simulation

Joule-Thomson cooling systems are used in refrigeration and liquefaction processes. There are extensive studies on Joule-Thomson cryogenic systems, but most of them coverage steady state conditions or lack from experimental data. In the present work, transient thermal behavior of Joule-Thomson cooling system including counter current helically coiled tube in tube heat exchanger, expansion valve...

Modified Sickledex tube test: a specific test for S hemoglobin.