RWU Marine Scientists to Collaborate on $3 Million NSF Grant Investigating Aquatic Viruses

Professors Marcia Marston and Koty Sharp join research team from four universities to study how marine and aquatic viruses impact microbes

University of Delaware Fuel Cell Transit Vehicle Program, Phases 1-5

The University of Delaware\u2019s Fuel Cell Transit Vehicle Program was initiated in September 2005 and ended in November 2022. The Program consortium was led by the University of Delaware and included the Electric Power Research Institute (EPRI), Ballard Inc., Ebus, Air Liquide, and Delaware Transit Corporation. The primary goal of the Program was to research, build, and demonstrate a fleet of fuel cell powered buses and hydrogen refueling infrastructure in Delaware. Additional goals included the research and development of fuel cell components for improved performance and durability, modeling and simulation of fuel cell systems and fuel cell/battery hybrid buses, thermal management of lithium-ion batteries, production of renewable hydrogen from a solar-powered thermochemical reactor, storage of hydrogen in metal hydrides, development of intelligent power management strategies for fuel cell hybrid buses, and determining the impact of connectivity on electric vehicle energy consumption and battery life. The Program also led to the development of the University of Delaware\u2019s Center for Fuel Cells and Batteries, and helped to launch a startup company, Sonijector LLC

Blowup of a Concrete Pavement Adjoining a Rigid Structure

DTFH61-88-P-00820The main cause of concrete pavement blowups are axial compression forces induced into the pavement by a rise in temperature and moisture. Recent analyses by this writer and his students were based on the notion that blowups are caused by lift-off buckling of the pavement. The cases analyzed were: (1) continuously reinforced concrete pavement and (2) concrete pavement weakened by a transverse joint or crack. The present paper contains an analysis of another case, when a long continuously reinforced concrete pavement adjoins a rigid structure, like a bridge abutment. The analysis is similar to the ones described above. The resulting formulation is non-linear and is solved exactly, in closed form. The obtained results are evaluated numerically and are compared with those of a long continuously reinforced pavement, in order to show the effect of the rigid structure on the pavement response