| 133 |  |  | 
| 134 |  | CheckParameter(ForceField, isNotEmpty()); | 
| 135 |  | CheckParameter(TargetTemp, isPositive()); | 
| 136 | < | CheckParameter(Ensemble, isEqualIgnoreCase("NVE") || isEqualIgnoreCase("NVT") || isEqualIgnoreCase("NPTi") || isEqualIgnoreCase("NPTf") || isEqualIgnoreCase("NPTxyz") || isEqualIgnoreCase("NPAT")  || isEqualIgnoreCase("LANGEVINDYNAMICS") ); | 
| 136 | > | CheckParameter(Ensemble, isEqualIgnoreCase("NVE") || isEqualIgnoreCase("NVT") || isEqualIgnoreCase("NPTi") || isEqualIgnoreCase("NPTf") || isEqualIgnoreCase("NPTxyz") || isEqualIgnoreCase("NPAT")  || isEqualIgnoreCase("LANGEVINDYNAMICS") || isEqualIgnoreCase("NPRT")); | 
| 137 |  | CheckParameter(Dt, isPositive()); | 
| 138 |  | CheckParameter(RunTime, isPositive()); | 
| 139 |  | CheckParameter(InitialConfig, isNotEmpty()); | 
| 168 |  | CheckParameter(ThermIntDistSpringConst, isPositive()); | 
| 169 |  | CheckParameter(ThermIntThetaSpringConst, isPositive()); | 
| 170 |  | CheckParameter(ThermIntOmegaSpringConst, isPositive()); | 
| 171 | < | CheckParameter(SurfaceTension, isPositive()); | 
| 171 | > | CheckParameter(SurfaceTension, isNonNegative()); | 
| 172 |  | CheckParameter(ElectrostaticSummationMethod, isEqualIgnoreCase("NONE") || isEqualIgnoreCase("SHIFTED_POTENTIAL") || isEqualIgnoreCase("SHIFTED_FORCE") || isEqualIgnoreCase("REACTION_FIELD")); | 
| 173 |  | CheckParameter(ElectrostaticScreeningMethod, isEqualIgnoreCase("UNDAMPED") || isEqualIgnoreCase("DAMPED")); | 
| 174 |  | CheckParameter(CutoffPolicy, isEqualIgnoreCase("MIX") || isEqualIgnoreCase("MAX") || isEqualIgnoreCase("TRADITIONAL")); |