Proceeding Paper PErocxeepdinegrPiapmer ental Study of the Effects of Heating or Cooling on the EWxpaeterrimSeunrftaacleSitnudaynoOfpthene ECfhfeacntnseolf†Heating or Cooling on the Water Surface in an Open Channel † Alexandros Leousidis 1, George Pechlivanidis 2, Evangelos Keramaris ...