The aim of this research is to find out about the methods used Battery by the teachers of the subjects (choir, voice training, singing groups) used to warm up in voice training.In the Department of Music of the Faculty of Fine Arts University of Baghdad.The limits of this research were for the academic year (2017-2018).Explanation in the theoretica

Solutions of surfactants exhibit remarkable features, such as a tunable amphiphilic character, which can further be varied for ionic surfactants through variations in their Coulombic interactions.These properties are very useful in many industrial applications such as in extraction, purification, and formulation processes, as detergents, wetting ag

Offshore wind power is a new trend in renewable energy development.However, during the operation of offshore wind turbines, the rock-socketed monopile foundation is subjected to long-term cyclic loads, which will cause the seawater to erode the rock around the monopile foundation and reduce the ultimate end-bearing capacity.There is no suitable roc

A new multiarc sprag clutch model considering geometry and internal interaction during engagement is proposed in this paper.To increase the accuracy of the model, an improved model of geometric deformation coordination is presented to describe the basic Napkin Rings geometrical quantities after rotation of the sprag.Then, based on this model, a nov

Introduction: The geographical movement of people from one area to another poses the threat of transmission of infectious diseases.Kenya is among the vulnerable countries when it comes to disease transmission, because it is a major transport hub in East Africa, yet data on the availability and uptake of pre-travel health services is limited.Methods