APPLICATION OF TOTAL-REFLECTION X-RAY FLUORESCENCE SPECTROMETRY (TXRF) TO GEOLOGICAL OBJECTS: EXPERIENCE OF THE TXRF LABORATORY, CENTER FOR GEODYNAMICS AND GEOCHRONOLOGY

Unlike conventional X-ray fluorescence spectrometry, the total-reflection X-ray fluorescence spectrometry is not a widespread and routine method for analyzing solid samples Freeing with mineral matrix, but it has a great potential for geochemical, geological, and archaeological studies.Rapid multi-elemental analysis of very small sample amounts can

A large number of chemical operations, biochemical or petrochemical industry is very depending on the rheological fluids nature.In this work, we study the case of highly viscous of viscoplastic fluids in a classical system of agitation: a cylindrical tank with plate bottom without obstacles agitated by gate impeller agitator.We are interested to th

The grim milestone of three million deaths due to the global pandemic of coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was reached FOREVER BLONDE DRAMATIC REPAIR a few weeks ago.COVID-19 is a multi-system all-pervasive disease with protean manifestations, and its major signs and sympt

This survey was done in several guava fields around Bogor and found many unhealthy plants infested by various plant pests and diseases.This study aimed to analyze the effect of various guava cultivars on pest and disease intensity on guava in the Sub-District of Tanah Sareal, Bogor.Samples were collected from 20 fields that consisted of 15 samples

Spin angular momentum of a photon corresponds to a polarisation degree of freedom of lights, and such that various polarisation properties are coming from macroscopic manifestation of quantum-mechanical FOREVER BLONDE DRAMATIC REPAIR properties of lights.An orbital degree of freedom of lights is also manipulated to form a vortex of lights with orbi