A suitable representation of the regional gravity eld is used to estimate relative offsets between national height system realizations in Europe. The method used is based on a gravimetric approach and bene ts from the signi cant improvements in the determination of the global gravity eld by the recent satellite gravity missions the Gravity Recovery and Climate Experiment (GRACE) and the Gravity...

Abstract Since the last decade, Indonesia has continuously improved accuracy of national geoid model by conducting rapid gravity acquisition using airborne and terrestrial gravimetry. As data have been collected thoroughly in all regions, time come to carry out Indonesia’s modeling. We started our study employing Stokes Second Helmert’s condensation method Yogyakarta, Indonesia, with a target a...

In chemical measurements (for instance in titrimetric analysis) it is very important to precisely measure amount of liquid, the measurement is performed with use of various measuring vessels. Presently laboratories use all kinds of glass measuring vessels like: beakers, flasks, etc., for measurement of bigger volumes of liquid, and in case of small volumes glass pipettes. Glass pipettes have be...

Recently we described a method for the determination of alanine based upon its conversion into acetaldehyde by the action of ninhydrin (1). A method for the measurement of glycine has been devised which involves its conversion by ninhydrin to formaldehyde; the latter is then measured by its reaction with chromotropic acid. Earlier methods for the measurement of glycine are less sensitive and sp...

The piezoelectric biosensor have been widely used in ultra-small mass detection of biomolecular, based on PZT piezoelectric material can create a variety of compositions geometrically; it could widely develop a high-frequency resonator and measure the change of the slightest mass while improve the limited detection simultaneously. Therefore, the piezoelectric biosensor of this study was fabrica...

In these methods, the response of the test organism to graded concentrations of the substance being assayed is determined, after a suitable incubation period, by measurement of the amount of growth in terms of dry cell weight. Under the conditions of assay, this weight is proportional to the concentration of the limiting factor. By comparing the response of the test organism to the sample being...