Abstract: An electrode for transmitting radiofrequency power to a plasma processing region includes a plate formed of semiconducting material and a high electrical conductivity layer formed on a top surface of the plate and integral with the plate. The high electrical conductivity layer has a lower electrical resistance than the semiconducting material of the plate. The electrode includes a distribution of through-holes. Each through-hole extends through an entire thickness of the electrode from a top surface of the high electrical conductivity layer to a bottom surface of the plate. In some embodiments, the plate can be formed of a silicon material and the high electrical conductivity layer can be a silicide material formed from the silicon material of the plate.

Abstract: A method begins with identifying a geographic area associated with an adverse condition and identifying a plurality of user devices of a social network potentially associated with the identified geographic area. The method continues with issuing a safety notification to the plurality of user devices. The method continues with receiving a first safety status response from a first user device and a second safety status response from a second user device, where the responses include location information of a first and second safe location. The method continues with issuing evacuation information to at least some of the plurality of user devices based on the location information of the first and second safe locations.

Abstract: A method includes identifying a first user device potentially associated with a biohazard and identifying a geographic area associated with the biohazard based on previous location information of the first user device. The method further includes identifying a second user device potentially associated with the biohazard based on the geographic area associated with the biohazard and previous location information of the second user device. The method further includes issuing a safety notification to the second user device, where the safety notification includes one or more of the geographic area associated with the biohazard, a safety status request, a safety status level of the first user device, a subset of the previous location information of the first user device, and a subset of the previous location information of the second user device.

Abstract: A recessed light fixture includes an LED module, which includes a single LED package that is configured to generate all light emitted by the recessed light fixture. For example, the LED package can include multiple LEDs mounted to a common substrate. The LED package can be coupled to a heat sink for dissipating heat from the LEDs. The heat sink can include a core member from which fins extend. Each fin can include one or more straight and/or curved portions. A reflector housing may be coupled to the heat sink and configured to receive a reflector. The reflector can have any geometry, such as a bell-shaped geometry including two radii of curvature that join together at an inflection point. An optic coupler can be coupled to the reflector housing and configured to cover electrical connections at the substrate and to guide light emitted by the LED package.

Abstract: A recessed light fixture includes an LED module, which includes a single LED package that is configured to generate all light emitted by the recessed light fixture. For example, the LED package can include multiple LEDs mounted to a common substrate. The LED package can be coupled to a heat sink for dissipating heat from the LEDs. The heat sink can include a core member from which fins extend. Each fin can include one or more straight and/or curved portions. A reflector housing may be coupled to the heat sink and configured to receive a reflector. The reflector can have any geometry, such as a bell-shaped geometry including two radii of curvature that join together at an inflection point. An optic coupler can be coupled to the reflector housing and configured to cover electrical connections at the substrate and to guide light emitted by the LED package.

Abstract: A method begins by a processing module identifying a geographic area of an adverse condition and identifying a user device of a plurality of user devices potentially associated with the identified geographic area. The method continues with the processing module issuing a safety notification to the user device, where the safety notification includes one or more of the identified geographic area and a safety status request. The method continues with the processing module receiving, from the user device, a safety status response, where the safety status response includes at least one of location information generated by the user device and a safety status level generated by the user device. The method continues with the processing module indicating the safety status level.

Abstract: An electrode for transmitting radiofrequency power to a plasma processing region includes a plate formed of semiconducting material and a high electrical conductivity layer formed on a top surface of the plate and integral with the plate. The high electrical conductivity layer has a lower electrical resistance than the semiconducting material of the plate. The electrode includes a distribution of through-holes. Each through-hole extends through an entire thickness of the electrode from a top surface of the high electrical conductivity layer to a bottom surface of the plate. In some embodiments, the plate can be formed of a silicon material and the high electrical conductivity layer can be a silicide material formed from the silicon material of the plate.

Abstract: A method begins with identifying a geographic area associated with an adverse condition and identifying a plurality of user devices of a social network potentially associated with the identified geographic area. The method continues with issuing a safety notification to the plurality of user devices. The method continues with receiving a first safety status response from a first user device and a second safety status response from a second user device, where the responses include location information of a first and second safe location. The method continues with issuing evacuation information to at least some of the plurality of user devices based on the location information of the first and second safe locations.

Abstract: A method begins by a processing module identifying a geographic area of an adverse condition and identifying a user device of a plurality of user devices potentially associated with the identified geographic area. The method continues with the processing module issuing a safety notification to the user device, where the safety notification includes one or more of the identified geographic area and a safety status request. The method continues with the processing module receiving, from the user device, a safety status response, where the safety status response includes location information associated with a safe location. The method continues with the processing module indicating the location information to at least some of the plurality of user devices.

Abstract: A recessed light fixture includes an LED module, which includes a single LED package that is configured to generate all light emitted by the recessed light fixture. For example, the LED package can include multiple LEDs mounted to a common substrate. The LED package can be coupled to a heat sink for dissipating heat from the LEDs. The heat sink can include a core member from which fins extend. Each fin can include one or more straight and/or curved portions. A reflector housing may be coupled to the heat sink and configured to receive a reflector. The reflector can have any geometry, such as a bell-shaped geometry including two radii of curvature that join together at an inflection point. An optic coupler can be coupled to the reflector housing and configured to cover electrical connections at the substrate and to guide light emitted by the LED package.

Abstract: A method begins by a processing module identifying a geographic area of an adverse condition and identifying a user device of a plurality of user devices potentially associated with the identified geographic area. The method continues with the processing module issuing a safety notification to the user device, where the safety notification includes one or more of the identified geographic area and a safety status request. The method continues with the processing module receiving, from the user device, a safety status response, where the safety status response includes location information associated with a safe location. The method continues with the processing module indicating the location information to at least some of the plurality of user devices.

Abstract: A recessed light fixture includes an LED module, which includes a single LED package that is configured to generate all light emitted by the recessed light fixture. For example, the LED package can include multiple LEDs mounted to a common substrate. The LED package can be coupled to a heat sink for dissipating heat from the LEDs. The heat sink can include a core member from which fins extend. Each fin can include one or more straight and/or curved portions. A reflector housing may be coupled to the heat sink and configured to receive a reflector. The reflector can have any geometry, such as a bell-shaped geometry including two radii of curvature that join together at an inflection point. An optic coupler can be coupled to the reflector housing and configured to cover electrical connections at the substrate and to guide light emitted by the LED package.

Abstract: A method begins by a processing module identifying a geographic area of an adverse condition and identifying a user device of a plurality of user devices potentially associated with the identified geographic area. The method continues with the processing module issuing a safety notification to the user device, where the safety notification includes one or more of the identified geographic area and a safety status request. The method continues with the processing module receiving, from the user device, a safety status response, where the safety status response includes at least one of location information generated by the user device and a safety status level generated by the user device. The method continues with the processing module indicating the safety status level.

Abstract: A method begins by a processing module of a social network identifying an affected area of an adverse event and identifying a user device of a plurality of user devices of the social network potentially associated with the affected area of the adverse event. The method continues with the processing module issuing a safety notification to the user device, where the safety notification includes one or more of the affected area of the adverse event and a safety status request. The method continues with the processing module receiving, from the user device, a safety status response, where the safety status response includes at least one of location information generated by the user device and a safety status level generated by the user device. The method continues with the processing module indicating the safety status level.

Abstract: The luminaire includes a light emitting diode (LED) module that includes a heat sink with an outer wall defining a top cavity and a bottom cavity and a mounting flange generally positioned along the bottom of the outer wall. A LED light source is positioned within the bottom cavity and in thermal communication with the heat sink. The bottom surface of the mounting flange includes one or more alignment features or keys extending out from the bottom surface. A trim having a corresponding alignment aperture is matingly engaged by positioning all or a portion of the alignment feature into the alignment aperture to ensure proper orientation of the trim with the LED module and to provide sufficient surface area for good thermal transfer between the heat sink and the trim.

Abstract: A method begins by a processing module of a social network identifying an affected area of an adverse event and identifying a user device of a plurality of user devices of the social network potentially associated with the affected area of the adverse event. The method continues with the processing module issuing a safety notification to the user device, where the safety notification includes one or more of the affected area of the adverse event and a safety status request. The method continues with the processing module receiving, from the user device, a safety status response, where the safety status response includes at least one of location information generated by the user device and a safety status level generated by the user device. The method continues with the processing module indicating the safety status level.

Abstract: A recessed light fixture includes an LED module, which includes a single LED package that is configured to generate all light emitted by the recessed light fixture. For example, the LED package can include multiple LEDs mounted to a common substrate. The LED package can be coupled to a heat sink for dissipating heat from the LEDs. The heat sink can include a core member. A reflector housing may be coupled to the heat sink and configured to receive a reflector. The reflector can have any geometry, such as a bell-shaped geometry including two radii of curvature that join together at an inflection point. An optic coupler can be coupled to the reflector housing and configured to cover electrical connections at the substrate and to guide light emitted by the LED package.

Abstract: The luminaire includes a light emitting diode (LED) module that includes a heat sink with an outer wall defining a top cavity and a bottom cavity and a mounting flange generally positioned along the bottom of the outer wall. A LED light source is positioned within the bottom cavity and in thermal communication with the heat sink. The bottom surface of the mounting flange includes one or more alignment features or keys extending out from the bottom surface. A trim having a corresponding alignment aperture is matingly engaged by positioning all or a portion of the alignment feature into the alignment aperture to ensure proper orientation of the trim with the LED module and to provide sufficient surface area for good thermal transfer between the heat sink and the trim.

Abstract: A method begins by a processing module obtaining a set of identifiers (IDs) corresponding to a set of user devices, wherein each user device of the set of user devices is associated with a corresponding safety status level. For each identifier (ID) of the set of IDs, the method continues with the processing module generating a safety status request that includes the ID, outputting the safety status request to a user device of the set of user devices that corresponds to the ID, receiving a safety status response of a set of safety status responses, wherein the safety status response includes a corresponding safety status level of one user device of the set of user devices, and indicating the safety status level of the safety status response when an ID of the safety status response compares favorably to at least one ID of the set of IDs.

Abstract: The luminaire includes a light emitting diode (LED) module that includes a heat sink with an outer wall defining a top cavity and a bottom cavity and a mounting flange generally positioned along the bottom of the outer wall. A LED light source is positioned within the bottom cavity and in thermal communication with the heat sink. The bottom surface of the mounting flange includes one or more alignment features or keys extending out from the bottom surface. A trim having a corresponding alignment aperture is matingly engaged by positioning all or a portion of the alignment feature into the alignment aperture to ensure proper orientation of the trim with the LED module and to provide sufficient surface area for good thermal transfer between the heat sink and the trim.