The following recent email-marketing studies show some of the wide variations in email open and click-through rates based on different industries and types of emails sent: 1  According to the 2012 Silverpop Email Marketing Metrics Benchmark Study, open rates in the United States averaged 19.9% .
Hydrodesulfurization (HDS) is a catalytic chemical process widely used to remove sulfur (S) from natural gas and from refined petroleum products, such as gasoline or petrol, jet fuel, kerosene, diesel fuel, and fuel oils. The purpose of removing the sulfur, and creating products such as ultra-low-sulfur diesel, is to reduce the sulfur dioxide (SO
Decision Support Systems. A Decision Support System, or DSS, is a specialized information system specifically designed to facilitate the decision making process in the operations of organizations. Compared to other types of information systems, a DSS is typically used when a problem is unstructured or when circumstances are difficult to predict. A DSS may include other types of systems. For example, a database management system (DBMS) is often part of a DSS in order to have access to the necessary data. However, a DSS is more than a DBMS since it provides a structure to facilitate the process of making decisions.