diff --git a/src/main/java/neqsim/physicalproperties/system/PhysicalPropertyModel.java b/src/main/java/neqsim/physicalproperties/system/PhysicalPropertyModel.java
index d6d9c59b3d..250fe9b637 100644
--- a/src/main/java/neqsim/physicalproperties/system/PhysicalPropertyModel.java
+++ b/src/main/java/neqsim/physicalproperties/system/PhysicalPropertyModel.java
@@ -3,8 +3,8 @@
 import neqsim.util.exception.InvalidInputException;
 
 /**
- * Types of PhysicalPropertyModel. This is used when initializing PhysicalPropertyhandler. Ω
- * 
+ * Types of PhysicalPropertyModel. This is used when initializing PhysicalPropertyhandler.
+ *
  * @author ASMF
  */
 public enum PhysicalPropertyModel {
diff --git a/src/main/java/neqsim/processsimulation/processequipment/adsorber/SimpleAdsorber.java b/src/main/java/neqsim/processsimulation/processequipment/adsorber/SimpleAdsorber.java
index 6312399c73..e2fb7b3a5f 100644
--- a/src/main/java/neqsim/processsimulation/processequipment/adsorber/SimpleAdsorber.java
+++ b/src/main/java/neqsim/processsimulation/processequipment/adsorber/SimpleAdsorber.java
@@ -123,6 +123,7 @@ public void setOutTemperature(double temperature) {
    * </p>
    *
    * @param i a int
+   * @return a double
    */
   public double getOutTemperature(int i) {
     return outStream[i].getThermoSystem().getTemperature();
@@ -134,6 +135,7 @@ public double getOutTemperature(int i) {
    * </p>
    *
    * @param i a int
+   * @return a double
    */
   public double getInTemperature(int i) {
     return inStream[i].getThermoSystem().getTemperature();