abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

abstract the third millennium has started, but the world is facing with serious challenges in achieving international security and peace. various human rights violations have lead the states to find means to protect human rights. also article 55 of the united nations charter introduces the respect to human rights and fundamental freedom as the most suitable ways to realize peace and security. ...

Introduction: An important aspect of society’s development is health development and in the other words the quantity and the quality of people’s access to the health services. Considering that any planning to deliver services to poor regions needs the analysis of the current situation, this research classifies health development index in the country. Method: Using multivariate statistical ...