Abstract: Aspects of a geogrid system and method for improving substrate interactions within a geotechnical environment is disclosed. In one aspect a geotechnical environment is configured with a horizontal multilayer mechanically stabilizing geogrid. In said aspect the geogrid is extruded with a polymeric material and a compressible cellular layer, wherein the geogrid comprises a heightened aspect ratio with a patterned structure of engineered discontinuities and a plurality of strong axes. The combination of elements provides for a system and method of stabilizing soils and aggregate, by resisting lateral movement from the strong axes, and trapping particles in the patterned structure of engineered discontinuities.

Abstract: An extruder of a three-dimensional printer may be coupled with one or more filament tubes, each filament tube having its own supply of filament. The extruder may include a drive gear rotatable in a first direction to advance a filament from a filament tube toward at least one extrusion opening defined by the extruder and rotatable in a second direction, opposite the first direction, to advance another filament from a different filament tube toward the at least one extrusion opening defined by the extruder. Also, as one filament is advanced by the drive gear, another filament may be retracted by the drive gear to improve the switching of filaments in a three-dimensional printing process. The extruder may work in conjunction with a filament supply-side drive system that feeds filament into one or more filament tubes, reducing a pull force exerted by the drive gear of the extruder.

Abstract: Simultaneous automatic placement and routing speeds up implementation an integrated circuit layout and improves the resulting layout such that the layout is more compact, has reduced parasitics, and has improved circuit performance characteristics (e.g., power, frequency, propagation delay, gain, and stability). A technique generates solutions based on random normalized polish expression, and includes cost considerations based on routing of interconnect.

Abstract: Simultaneous automatic placement and routing speeds up implementation an integrated circuit layout and improves the resulting layout such that the layout is more compact, has reduced parasitics, and has improved circuit performance characteristics (e.g., power, frequency, propagation delay, gain, and stability). A technique generates solutions based on random normalized polish expression, and includes cost considerations based on routing of interconnect.

Abstract: An extruder is fitted with a connector for coupling and decoupling with a filament feed source, such as a filament tube. When connected, the extruder and filament tube are aligned to define a feed path for a filament. A tool rack includes a plurality of filament tubes secured within respective openings. The tool rack may facilitate coupling and decoupling operations between the extruder and filament sources. For example, the tool rack may define an insertion path that engages a filament tube during insertion, and that secures the filament tube against an excursion from the insertion path. The extruder may disengage the coupling by initiating a motion along the insertion path and then moving off of the insertion path to decouple the filament tube and the extruder. In this manner, filaments may be swapped through engaging and disengaging the extruder with different filament tubes on the tool rack.

Abstract: Simultaneous automatic placement and routing speeds up implementation an integrated circuit layout and improves the resulting layout such that the layout is more compact, has reduced parasitics, and has improved circuit performance characteristics (e.g., power, frequency, propagation delay, gain, and stability). A technique generates solutions based on random normalized polish expression, and includes cost considerations based on routing of interconnect.

Abstract: An extruder is fitted with a connector for coupling and decoupling with a filament feed source, such as a filament tube. When connected, the extruder and filament tube are aligned to define a feed path for a filament. A tool rack includes a plurality of filament tubes secured within respective openings. The tool rack may facilitate coupling and decoupling operations between the extruder and filament sources. For example, the tool rack may define an insertion path that engages a filament tube during insertion, and that secures the filament tube against an excursion from the insertion path. The extruder may disengage the coupling by initiating a motion along the insertion path and then moving off of the insertion path to decouple the filament tube and the extruder. In this manner, filaments may be swapped through engaging and disengaging the extruder with different filament tubes on the tool rack.

Abstract: An extruder of a three-dimensional printer may be coupled with one or more filament tubes, each filament tube having its own supply of filament. The extruder may include a drive gear rotatable in a first direction to advance a filament from a filament tube toward at least one extrusion opening defined by the extruder and rotatable in a second direction, opposite the first direction, to advance another filament from a different filament tube toward the at least one extrusion opening defined by the extruder. Also, as one filament is advanced by the drive gear, another filament may be retracted by the drive gear to improve the switching of filaments in a three-dimensional printing process. The extruder may work in conjunction with a filament supply-side drive system that feeds filament into one or more filament tubes, reducing a pull force exerted by the drive gear of the extruder.

Abstract: An extruder is fitted with a connector for coupling and decoupling with a filament feed source, such as a filament tube. When connected, the extruder and filament tube are aligned to define a feed path for a filament. A tool rack includes a plurality of filament tubes secured within respective openings. The tool rack may facilitate coupling and decoupling operations between the extruder and filament sources. For example, the tool rack may define an insertion path that engages a filament tube during insertion, and that secures the filament tube against an excursion from the insertion path. The extruder may disengage the coupling by initiating a motion along the insertion path and then moving off of the insertion path to decouple the filament tube and the extruder. In this manner, filaments may be swapped through engaging and disengaging the extruder with different filament tubes on the tool rack.

Abstract: Simultaneous automatic placement and routing speeds up implementation an integrated circuit layout and improves the resulting layout such that the layout is more compact, has reduced parasitics, and has improved circuit performance characteristics (e.g., power, frequency, propagation delay, gain, and stability). A technique generates solutions based on a random normalized polish expression, and includes cost considerations based on routing of interconnect.

Abstract: An extruder of a three-dimensional printer may be coupled with one or more filament tubes, each filament tube having its own supply of filament. The extruder may include a drive gear rotatable in a first direction to advance a filament from a filament tube toward at least one extrusion opening defined by the extruder and rotatable in a second direction, opposite the first direction, to advance another filament from a different filament tube toward the at least one extrusion opening defined by the extruder. Also, as one filament is advanced by the drive gear, another filament may be retracted by the drive gear to improve the switching of filaments in a three-dimensional printing process. The extruder may work in conjunction with a filament supply-side drive system that feeds filament into one or more filament tubes, reducing a pull force exerted by the drive gear of the extruder.

Abstract: An extruder is fitted with a connector for coupling and decoupling with a filament feed source, such as a filament tube. When connected, the extruder and filament tube are aligned to define a feed path for a filament. A tool rack includes a plurality of filament tubes secured within respective openings. The tool rack may facilitate coupling and decoupling operations between the extruder and filament sources. For example, the tool rack may define an insertion path that engages a filament tube during insertion, and that secures the filament tube against an excursion from the insertion path. The extruder may disengage the coupling by initiating a motion along the insertion path and then moving off of the insertion path to decouple the filament tube and the extruder. In this manner, filaments may be swapped through engaging and disengaging the extruder with different filament tubes on the tool rack.

Abstract: A three-dimensional printer uses its extruder and build platform to properly orient the build platform within a working volume. In a multi-point leveling operation, the extruder is moved to the z-axis origin at a number of x-y positions within the plane of the build platform, and the height of the build platform is adjusted to meet the extruder at the origin. If the build platform is a meltable material such as a plastic, then this leveling process must be performed while the extruder is cool. A homing operation may be performed periodically after leveling in order to realign the z-axis positions of the build platform and extruder. A non-meltable contact point may be usefully provided so that homing can be performed while the extruder is hot, such as immediately before a build or between a number of builds.

Abstract: A three-dimensional printer uses its extruder and build platform to properly orient the build platform within a working volume. In a multi-point leveling operation, the extruder is moved to the z-axis origin at a number of x-y positions within the plane of the build platform, and the height of the build platform is adjusted to meet the extruder at the origin. If the build platform is a meltable material such as a plastic, then this leveling process must be performed while the extruder is cool. A homing operation may be performed periodically after leveling in order to realign the z-axis positions of the build platform and extruder. A non-meltable contact point may be usefully provided so that homing can be performed while the extruder is hot, such as immediately before a build or between a number of builds.

Abstract: A three-dimensional printer uses its extruder and build platform to properly orient the build platform within a working volume. In a multi-point leveling operation, the extruder is moved to the z-axis origin at a number of x-y positions within the plane of the build platform, and the height of the build platform is adjusted to meet the extruder at the origin. If the build platform is a meltable material such as a plastic, then this leveling process must be performed while the extruder is cool. A homing operation may be performed periodically after leveling in order to realign the z-axis positions of the build platform and extruder. A non-meltable contact point may be usefully provided so that homing can be performed while the extruder is hot, such as immediately before a build or between a number of builds.

Abstract: A three-dimensional printer uses its extruder and build platform to properly orient the build platform within a working volume. In a multi-point leveling operation, the extruder is moved to the z-axis origin at a number of x-y positions within the plane of the build platform, and the height of the build platform is adjusted to meet the extruder at the origin. If the build platform is a meltable material such as a plastic, then this leveling process must be performed while the extruder is cool. A homing operation may be performed periodically after leveling in order to realign the z-axis positions of the build platform and extruder. A non-meltable contact point may be usefully provided so that homing can be performed while the extruder is hot, such as immediately before a build or between a number of builds.

Abstract: A technique generates small scale clock trees using a spine-based architecture (using spine routing) while also using clustered placement. Techniques are used to control clock sink cluster contents in order to minimize clock skew, minimize clock buffer count, and minimize use of routing resources. This approach also provides the user with ample structure and control to customize small efficient clock trees, and can also reduce clock power consumption.

Abstract: A technique will automatically route interconnect of an integrated circuit and adjust spacing between tracks or interconnect in order to improve performance or reduce electromigration effects. By increasing spacing between certain tracks or moving tracks, performance can improve because a track will be more noise immunity from nearby tracks on the same layer or on different layers. The automatic router will adjust spacing between tracks depending on one or more factors. These factors may include current associated with a track, width of a track, capacitance, inductance, and electromigration. In a specific implementation, the technique uses a shape-based approach where a grid is not used. The technique may further vary the width of the tracks.

Abstract: A system automatically routes interconnect of an integrated circuit design using variable width interconnect lines. For example, a first automatically routed interconnect may have a different width from a second automatically routed interconnect. The system will vary the width of the interconnect lines based on certain factors or criteria. These factors include current or power handling, reliability, electromigration, voltage drops, self-heating, optical proximity effects, or other factors, or combinations of these factors. The system may use a gridded or a gridless (or shape-based) approach.

Abstract: A system of automatically routing interconnect of a integrated circuit design while taking into consideration the parasitic issues of the wiring as it is created. The system will be able to select an appropriate wiring pattern so that signals meet their performance requirements.