A simple gravimetric method to determine barometer corrections

A Simple Gravimetric Method to Determine Barometer Corrections

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...

A simple gravimetric method for estimation of plasma fibrinogen.

The study was undertaken to evaluate a new method of estimating plasma fibrinogen levels, gravimetrically using calcium chloride in albino rats. The results were compared with the standard method in which thrombin was used as clotting agent and were found to be statistically not significant. Advantages of using calcium chloride instead of thrombin have been discussed.

A Simple Gravimetric Method for the Determination of Urinary Potassium

A Simple Method to Improve Hazelnut Grafting

Hazelnuts are usually propagated by suckers or layering. However, other methods of propagation have been tested with variable results. Grafting is a method that has a few advantages such as fast multiplication rate, earlier fruiting and reducing sucker removal cost on specific rootstocks. Unfortunately, grafting is difficult due to slow formation of callus in hazelnuts. Here, we report the hypo...

A simple method to determine surface albedo using digital photography

Surface albedo is an important concept, useful in explaining how closed systems (such as the Earth Atmosphere) respond to incident radiant energy. Specialist, calibrated equipment is used by geo-scientists to measure ambient and reflected radiation from subject sources – this is often cost prohibitive within a teaching environment. A “semi” calibrated method is presented, utilising simple digit...