Technique of measuring rapid water penetration rate into tablets.

Technique of measuring rapid water penetration rate into tablets.

An accurate method for measuring the fast uptake of water into tablets was established. The method involved the use of a video camera to monitor the flow of liquid in the capillary tube of the water penetration apparatus. Measurements of water uptake could be made in as short an interval as 0.04 s from 0 s. The liquid penetration profiles show that there are three linear portions of the double ...

The Pattern of Caspian Sea Water Penetration Into Anzali Wetland: Introduction of a Salt Wedge

Measuring salinity of water at different depths along six transacts at the mouth of the wetland and along five tributaries connecting the wetland to the sea the extent of Caspian Sea penetration into Anzali Wetland was determined. The results demonstrated a depth-dependent salinity gradient extending up to 10 kilometres into the wetland. A pattern of saltwater and freshwater interface is presen...

Measuring the penetration of ambient ozone into residential buildings.

Much of human exposure to ambient ozone and ozone reaction byproducts occurs inside buildings. However, there are currently no experimental data on the ability of ozone to penetrate through building envelopes and into residences. This paper presents a method to determine the penetration factor for ozone in buildings, and applies it in an unoccupied test house and seven single-family residences....

A Nuclear Measurement Technique of Water Penetration in Concrete Barriers

In this paper we propound a non­destructive and non­invasive technique for measuring the thickness of water penetration in a homogeneous slab. The proposed device consists of a 252 Cf spontaneous fission source and a set of 3 He detectors located on the same side of a concrete slab subject to water infiltration. The effectiveness of this technique has been investigated by Monte Carlo simulation...

Evaluation of Rapid Microbiological Methods for Measuring Recreational Water Quality Evaluation of Rapid Microbiological Methods for Measuring Recreational Water Quality