Abstract: Partial shading (PS) phenomena significantly degrade the power output from the photovoltaic (PV) array. Due to the PS effect, there is a mismatch in current between the PV modules of a ...

Salty black water laden with contaminants erupted from an orphaned well in West Texas in February — the latest in a series of deserted oil and gas wells leaking toxic water in a threat to groundwater.

Coming off the high from beating the Penn State Nittany Lions in double overtime during a thrilling Week 5 double-overtime showdown, the Oregon Ducks are now back to the drawing board and looking to ...

The rig count in Canada is up 3 units to 193 rigs working for the week ended Oct. 10, according to Baker Hughes data. The weekly total is down 26 units from the 219 rigs working this time a year ago.