Abstract: An uplight device for use with a luminaire that has a housing configured to be supported from a surface by a stem with a wireway. The uplight device includes a body having a radially outwardly directed annular flange, a vertically oriented annular rim encircling the annular flange, and a passageway extending through the body, and an uplight substrate supported on a first side of the annular flange. The uplight substrate includes a plurality of light emitting sources arranged in an array on a first side of the uplight substrate. The uplight device further includes an optical lens covering the first side of the annular flange and the uplight substrate. The body of the uplight device is configured to be coupled between the stem and housing of the luminaire such that the passageway communicates with the wireway of the stem and a chamber of the luminaire.

Abstract: An uplight device for use with a luminaire that has a housing configured to be supported from a surface by a stem with a wireway. The uplight device includes a body having a radially outwardly directed annular flange, a vertically oriented annular rim encircling the annular flange, and a passageway extending through the body, and an uplight substrate supported on a first side of the annular flange. The uplight substrate includes a plurality of light emitting sources arranged in an array on a first side of the uplight substrate. The uplight device further includes an optical lens covering the first side of the annular flange and the uplight substrate. The body of the uplight device is configured to be coupled between the stem and housing of the luminaire such that the passageway communicates with the wireway of the stem and a chamber of the luminaire.

Abstract: A shaft furnace for producing metallic direct reduced iron (DRI) from iron-containing pellets or lumps and reducing gas disposed therein, including: a circumferential outer wall defining a top interior reducing zone, a middle interior transition zone, and a bottom interior cooling zone, wherein the iron-containing pellets or lumps travel downwards through the top interior reducing zone, the middle interior transition zone, and the bottom interior cooling zone as the iron-containing pellets or lumps encounter the upward-flowing reducing gas and one or more other gases; and a flow diverter disposed along a centerline of the circumferential outer wall including a convex-upwards upper tapering section disposed in the middle transition zone defined by the circumferential outer wall coupled to a convex-downwards lower tapering section disposed in the bottom cooling zone defined by the circumferential outer wall.

Abstract: A luminaire is provided including a housing and at least one peripheral compartment defined in the housing that is configured to receive a lighting element. A central compartment is defined in the housing and disposed laterally inwardly of the at least one peripheral compartment. The central compartment is configured to receive control and power components for the lighting element. At least one lens is disposed over the at least one peripheral compartment such that the central compartment is accessible when the luminaire is installed on a support surface without a need to remove the at least one lens.

Abstract: A sensor support for use with a lighting refractor includes a housing defining an interior cavity configured to receive and support a sensor for sensing at least one of motion or light. The sensor support further includes a locking structure operatively associated with the housing and configured to selectively attach the housing to a peripheral portion of a lighting refractor, and an aperture in the housing and arranged to expose the sensor to an environment around the lighting refractor. Sensor and lighting unit assemblies are also disclosed. A sensor assembly includes the sensor support and a sensor configured to sense at least one of motion or light. A lighting unit assembly includes the sensor support and a lighting unit having a refractor with a peripheral portion.

Abstract: A modular lighting fixture includes an elongate center support member defining a channel. At least one reflector panel is coupled with the center support member and extends laterally outward therefrom. The lighting fixture further includes at least one light guide having a first edge and an oppositely disposed second edge. The first edge of the light guide is mechanically coupled with the center support member. The light guide may have a curved cross-sectional shape in a plane perpendicular to a longitudinal direction of the center support member. At least one light emitting diode (LED) is disposed adjacent the first edge of the light guide, whereby light produced by the LED is directed through the light guide toward the second edge.

Abstract: A luminaire is provided including a housing and at least one peripheral compartment defined in the housing that is configured to receive a lighting element. A central compartment is defined in the housing and disposed laterally inwardly of the at least one peripheral compartment. The central compartment is configured to receive control and power components for the lighting element. At least one lens is disposed over the at least one peripheral compartment such that the central compartment is accessible when the luminaire is installed on a support surface without a need to remove the at least one lens.

Abstract: Techniques are described herein for customizing a form (a.k.a. a dialog) in a model-based system. For instance, the form may be customized without the need to modify the form in persistent memory, such as read-only memory (ROM), a hard disk, a magnetic disk, an optical disk, etc. A representation of a customization (e.g., an extensible markup language file, a management pack, etc.) regarding the form is captured in memory, such as a random access memory (RAM), and stored in a file or a database. For instance, the representation of the customization may be stored separately from the form. The representation of the customization is retrieved from the file or the database and applied to a rendering of the form.

Abstract: A modular lighting fixture includes an elongate center support member defining a channel. At least one reflector panel is coupled with the center support member and extends laterally outward therefrom. The lighting fixture further includes at least one light guide having a first edge and an oppositely disposed second edge. The first edge of the light guide is mechanically coupled with the center support member. The light guide may have a curved cross-sectional shape in a plane perpendicular to a longitudinal direction of the center support member. At least one light emitting diode (LED) is disposed adjacent the first edge of the light guide, whereby light produced by the LED is directed through the light guide toward the second edge.

Abstract: A shaft furnace for producing metallic direct reduced iron (DRI) from iron-containing pellets or lumps and reducing gas disposed therein, including: a circumferential outer wall defining a top interior reducing zone, a middle interior transition zone, and a bottom interior cooling zone, wherein the iron-containing pellets or lumps travel downwards through the top interior reducing zone, the middle interior transition zone, and the bottom interior cooling zone as the iron-containing pellets or lumps encounter the upward-flowing reducing gas and one or more other gases; and a flow diverter disposed along a centerline of the circumferential outer wall including a convex-upwards upper tapering section disposed in the middle transition zone defined by the circumferential outer wall coupled to a convex-downwards lower tapering section disposed in the bottom cooling zone defined by the circumferential outer wall.

Abstract: A process for producing reducing gas for use in the production of direct reduced iron (DRI) and fuel gas for use in a steel mill, including: compressing a coke oven gas (COG) stream in a compressor; passing the compressed coke oven gas stream through an activated charcoal bed to remove tars from the compressed coke oven gas stream; separating a hydrogen-rich gas stream from the compressed cleaned coke oven gas stream using a pressure swing absorption unit; providing the hydrogen-rich gas stream to a direct reduction shaft furnace as reducing gas; and providing a remaining gas stream from the pressure swing absorption unit to a steel mill as fuel gas. Both once-through and recycle options are presented. Optionally, basic oxygen furnace gas (BOFG) is added to the reducing gas.

Abstract: A sensor support for use with a lighting refractor includes a housing defining an interior cavity configured to receive and support a sensor for sensing at least one of motion or light. The sensor support further includes a locking structure operatively associated with the housing and configured to selectively attach the housing to a peripheral portion of a lighting refractor, and an aperture in the housing and arranged to expose the sensor to an environment around the lighting refractor. Sensor and lighting unit assemblies are also disclosed. A sensor assembly includes the sensor support and a sensor configured to sense at least one of motion or light. A lighting unit assembly includes the sensor support and a lighting unit having a refractor with a peripheral portion.

Abstract: A method for mitigating the buildup of direct reduced iron (DRI) clusters on the walls of a direct reduction (DR) furnace, comprising: injecting one or more of lime, dolomite, and another anti-sticking agent into a charge disposed within a reduction zone of the DR furnace, wherein the one or more of lime, dolomite, and another anti-sticking agent is injected into the charge by one or more of: (1) injecting the one or more of lime, dolomite, and another anti-sticking agent into a bustle gas stream upstream of a bustle of the DR furnace; (2) injecting the one or more of lime, dolomite, and another anti-sticking agent into the bustle gas stream in the bustle of the DR furnace; (3) injecting the one or more of lime, dolomite, and another anti-sticking agent into the bustle gas stream through a pipe collocated with a bustle gas port through which the bustle gas stream is introduced into the DR furnace; and (4) injecting the one or more of lime, dolomite, and another anti-sticking agent directly into the reduction

Abstract: A process for producing reducing gas for use in the production of direct reduced iron (DRI) and fuel gas for use in a steel mill, comprising: compressing a coke oven gas (COG) stream in a compressor; passing the compressed coke oven gas stream through an activated charcoal bed to remove tars from the compressed coke oven gas stream; separating a hydrogen-rich gas stream from the compressed cleaned coke oven gas stream using a pressure swing absorption unit; providing the hydrogen-rich gas stream to a direct reduction shaft furnace as reducing gas; and providing a remaining gas stream from the pressure swing absorption unit to a steel mill as fuel gas. Both once-through and recycle options are presented. Optionally, basic oxygen furnace gas (BOFG) is added to the reducing gas. Optionally, top gas from the direct reduction shaft furnace is cooled, cleaned, and recycled back to the reducing gas stream. In some cases, carbon dioxide is also removed from the top gas stream.

Abstract: The present invention provides a combination reforming/reducing shaft furnace for the production of direct reduced iron that utilizes one or more burden uniformity enhancers, such as one or more rotating/reciprocating mixing shafts, one or more stationary flow aids, one or more wall structures/variations, one or more agitators, or the like for ensuring that reforming and reducing in the shaft furnace take place evenly across the width of and throughout the depth of the burden in the shaft furnace.

Abstract: Techniques are described herein for customizing a form (a.k.a. a dialog) in a model-based system. For instance, the form may be customized without the need to modify the form in persistent memory, such as read-only memory (ROM), a hard disk, a magnetic disk, an optical disk, etc. A representation of a customization (e.g., an extensible markup language file, a management pack, etc.) regarding the form is captured in memory, such as a random access memory (RAM), and stored in a file or a database. For instance, the representation of the customization may be stored separately from the form. The representation of the customization is retrieved from the file or the database and applied to a rendering of the form.

Abstract: Processes and techniques for tailoring operations management in a system are described. The processes and techniques allow a user to customize operations management based on the user's function within a system and the particular tasks that the user wishes to accomplish. Simplified user interfaces can be created by scoping the interfaces based on user profiles, preferences and system components.

Abstract: Described are systems and methods for instrumenting configuration and system settings based on targeting configuration settings at dynamically populated groups, groups with varied membership, and objects defined in a class. The systems and methods provide for attributing a configuration setting or policy to one or more objects and then targeting the object at one or more scopes.

Abstract: Techniques are described herein for customizing a form (a.k.a. a dialog) in a model-based system. For instance, the form may be customized without the need to modify the form in persistent memory, such as read-only memory (ROM), a hard disk, a magnetic disk, an optical disk, etc. A representation of a customization (e.g., an extensible markup language file, a management pack, etc.) regarding the form is captured in memory, such as a random access memory (RAM), and stored in a file or a database. For instance, the representation of the customization may be stored separately from the form. The representation of the customization is retrieved from the file or the database and applied to a rendering of the form.