wrusers.md

@@ -819,6 +819,21 @@ Transfer](https://www.ohwr.org/project/cngs-time-transfer/wiki)
       - [Electrical-Optical / Optical-Electrical - EO/OE -
         Calibration](https://www.ohwr.org/project/wr-calibration/wikis/eo-oe-calibration)
 
+<!-- end list -->
+
+  - [DEMETRA - Demonstrator of EGNSS Services based on Time Reference
+    Architecture](https://www.demetratime.eu)
+      - [Time & Frequency Distribution over Optical
+        link](https://www.demetratime.eu/timeservice/7) - *An accuracy
+        beyond the GPS level can be achieved through open source
+        techniques (White Rabbit)*
+      - [DEMonstrator of EGNSS services based on Time Reference
+        Architecture](http://rime.inrim.it/H2020-Demetra/)
+      - EU SME INSTRUMENT grant (number
+        [640658](http://cordis.europa.eu/search/result_en?q=640658)),
+        in the framework of the H2020-EU.2.1.6. - INDUSTRIAL LEADERSHIP
+        - Leadership in enabling and industrial technologies – Space. 
+
 <!-- end list -->
 
   - [EMPIR](http://empir.npl.co.uk/) - European Metrology Programme for
@@ -953,18 +968,15 @@ S15](http://msu.euramet.org/si_broader_scope_2015/SRTs/SRT-s15.pdf).
 
 <!-- end list -->
 
-  - [DEMETRA - Demonstrator of EGNSS Services based on Time Reference
-    Architecture](https://www.demetratime.eu)
-      - [Time & Frequency Distribution over Optical
-        link](https://www.demetratime.eu/timeservice/7) - *An accuracy
-        beyond the GPS level can be achieved through open source
-        techniques (White Rabbit)*
-      - [DEMonstrator of EGNSS services based on Time Reference
-        Architecture](http://rime.inrim.it/H2020-Demetra/)
-      - EU SME INSTRUMENT grant (number
-        [640658](http://cordis.europa.eu/search/result_en?q=640658)),
-        in the framework of the H2020-EU.2.1.6. - INDUSTRIAL LEADERSHIP
-        - Leadership in enabling and industrial technologies – Space. 
+  - [XIA](https://www.xia.com/), USA
+      - Supported by the US Department of Energy
+      - [XIA Products Utilize Precision Timing Protocol and Network
+        Synchronization](https://www.xia.com/xia-products-utilize-precision-timing-protocol-and-network-synchronization.html),
+        (12/2018)
+      - [Network Time Synchronization of the Readout Electronics for a
+        New Radioactive Gas Detection
+        System](https://www.xia.com/wp-content/uploads/2018/12/RT18_NTSposter.pdf)
+        (Poster at RT2018 conference)
 
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@@ -1146,5 +1158,5 @@ Experience is excellent (\!\!). (DESY, 28/10/13)
 
 -----
 
-8 January 2019
+14 January 2019