Presented here is a gravimetric me thod to calibr a te barometers. The difference in forces exerted on th e pan of a balance is observed for tw o we ll charac terized artifac ts of nearly equ al masses but different volumes. During the weighing, air tempera ture and re lative humidity ar e meas ured; the ambient pressur e is then calculated from an a ir density equation. A barometer correc tion...

The elastin-agar plate is useful for determining elastolytic activity. Determination of fungal elastase, however, requires partial purification of culture extracts and the orcein elastin or gravimetric method.

One of the most important design and operating parameters at composting facilities is moisture content. Existing standard gravimetric oven methods required a minimum of 19 hours to complete. In this study, by reducing the amount of sample, the time required to complete a standard gravimetric oven method was reduced to nine hours. A new infrared moisture balance method was also developed that re...

abstract background: in developing countries, hemorrhage accounts for 30% of the maternal deaths. postpartum hemorrhage has been defined as blood loss of around 500 ml or more, after completing the third phase of labor. most cases of postpartum hemorrhage occur during the first hour after birth. the most common reason for bleeding in the early hours after childbirth is uterine atony bleeding du...