Abstract: A vane arc segment includes a ceramic matrix composite fairing that has first and second platforms and an airfoil section that extends in a radial direction there between. Each of the first and second platforms includes axially-facing leading and trailing sides, a core gaspath side, and a non-core gaspath side. The non-core gaspath side of the first platform has a flange that projects radially there from and extends adjacent the trailing side. The flange has a radial face that is sloped with respect to the radial direction.

Abstract: A nuclear reactor has an axially stratified fuel bed. The reactor features a reactor shell having a base, a top having an exhaust outlet, and an axis. The axially stratified fuel bed is within the reactor shell, and includes: a first zone configured to operate at a first temperature T1, the first zone comprising a plurality of first fuel particles, each first fuel particle comprising a first radioactive ceramic core and a first ceramic seal coating; and a second zone configured to operate at a second temperature T2, where T2>T1, the second zone comprising a plurality of second fuel particles, each second fuel particle comprising a second radioactive ceramic core and a second ceramic seal coating. A coolant fluid flow path carries a coolant fluid from the base of the reactor to the exhaust outlet, along a flow path passing sequentially through the first zone and the second zone.

Abstract: A method for monitoring and recording a process in a clean space and a system for implementing same are provided. The method involves providing an electronic process record to a user using at least one processor; monitoring, using at least one sensor, for an event associated with the electronic process record; detecting, using the at least one sensor, the event associated with the electronic process record; recording in at least one data storage, using the at least one processor, information associated with the detected event, the recorded information being associated with a record of the electronic process record in the at least one data storage; verifying, using the at least one processor in communication with the at least one data storage, the recorded information; and storing in the at least one data storage, using the at least one processor, an indication that the recorded information has been verified.

Abstract: A method for monitoring and recording a process in a clean space and a system for implementing same are provided. The method involves providing an electronic process record to a user using at least one processor; monitoring, using at least one sensor, for an event associated with the electronic process record; detecting, using the at least one sensor, the event associated with the electronic process record; recording in at least one data storage, using the at least one processor, information associated with the detected event, the recorded information being associated with a record of the electronic process record in the at least one data storage; verifying, using the at least one processor in communication with the at least one data storage, the recorded information; and storing in the at least one data storage, using the at least one processor, an indication that the recorded information has been verified.

Abstract: A method for monitoring and recording a process in a clean space and a system for implementing same are provided. The method involves providing an electronic process record to a user using at least one processor; monitoring, using at least one sensor, for an event associated with the electronic process record; detecting, using the at least one sensor, the event associated with the electronic process record; recording in at least one data storage, using the at least one processor, information associated with the detected event, the recorded information being associated with a record of the electronic process record in the at least one data storage; verifying, using the at least one processor in communication with the at least one data storage, the recorded information; and storing in the at least one data storage, using the at least one processor, an indication that the recorded information has been verified.

Abstract: A multi-inlet gas distributor for a fluidized bed chemical vapor deposition reactor that may include a distributor body having an inlet surface, an exit surface opposed to the inlet surface, and a side perimeter surface. The distributor body may also include multiple-inlets evenly spaced from each other, wherein the multiple-inlets penetrate the distributor body from the inlet surface to a first depth. The distributor body may additionally include cone-shaped apertures connecting to corresponding ones of the multiple-inlets at the first depth and extend from the first depth toward the exit surface. An apex may be formed on the exit surface at the intersection of the cone-shaped apertures.

Abstract: A method for monitoring and recording a process in a clean space and a system for implementing same are provided. The method involves providing an electronic process record to a user using at least one processor; monitoring, using at least one sensor, for an event associated with the electronic process record; detecting, using the at least one sensor, the event associated with the electronic process record; recording in at least one data storage, using the at least one processor, information associated with the detected event, the recorded information being associated with a record of the electronic process record in the at least one data storage; verifying, using the at least one processor in communication with the at least one data storage, the recorded information; and storing in the at least one data storage, using the at least one processor, an indication that the recorded information has been verified.

Abstract: A multi-inlet gas distributor for a fluidized bed chemical vapor deposition reactor that may include a distributor body having an inlet surface, an exit surface opposed to the inlet surface, and a side perimeter surface. The distributor body may also include multiple-inlets evenly spaced from each other, wherein the multiple-inlets penetrate the distributor body from the inlet surface to a first depth. The distributor body may additionally include cone-shaped apertures connecting to corresponding ones of the multiple-inlets at the first depth and extend from the first depth toward the exit surface. An apex may be formed on the exit surface at the intersection of the cone-shaped apertures.

Abstract: The present invention provides a capability of Ion Mobility Spectrometry/Atmospheric Pressure Ionization Mass Spectrometry (IMS/MS) in the negative ion mode for Ozone detection and methods for ozone layer depletion monitoring in laboratory environment. Ammonium hydroxide vapors, as a dopant chemical, introduced to the inlet system of the IMS/MS interfaced with the reaction sphere enables ozone ionized to be O3?. The data obtainable from proposed methods show how ozone is depleted and which compound affect the most for O3 destruction among the O3 depletion substances of Chloro Fluoro Carbons (CFCs), Hydro Fluoro Carbons (HFCs), Hydro Chloro Fluoro Carbons (HCFCs), Hydro Chloro Bromo Carbons (HCBCs), and Hydro Chloro lodo Carbons (HClCs). Based on the results obtainable, more likely the IMS alone system without coupling with the mass spectrometer (IMS/MS) will rather be selected to develop as a spatial real time ozone layer depletion monitor.

Abstract: The present invention provides a capability of Ion Mobility Spectrometry/Atmospheric Pressure Ionization Mass Spectrometry (IMS/MS) in the negative ion mode for Ozone detection and methods for ozone layer depletion monitoring in laboratory environment. Ammonium hydroxide vapors, as a dopant chemical, introduced to the inlet system of the IMS/MS interfaced with the reaction sphere enables ozone ionized to be O3?. The data obtainable from proposed methods show how ozone is depleted and which compound affect the most for O3 destruction among the O3 depletion substances of Chloro Fluoro Carbons (CFCs), Hydro Fluoro Carbons (HFCs), Hydro Chloro Fluoro Carbons (HCFCs), Hydro Chloro Bromo Carbons (HCBCs), and Hydro Chloro lodo Carbons (HClCs). Based on the results obtainable, more likely the IMS alone system without coupling with the mass spectrometer (IMS/MS) will rather be selected to develop as a spatial real time ozone layer depletion monitor.