Abstract: This invention relates to a process for chemically treating a carbon-containing feedstock (e.g., a polymer-based feedstock), comprising contacting (e.g., by a hydrocracking reaction) the carbon-containing feedstock and a hydrogen stream in the presence of at least one hydrocracking catalyst to produce an alkane-containing product stream. The hydrocracking catalyst comprises at least one transition metal or transition metal sulfide supported on an oxide-containing support. This invention also relates to an alkane-containing mixture obtained by the process described herein and a system/apparatus for carrying out the process described herein.

Abstract: A process for the cracking of a carbon-containing feedstock to produce olefins, the process includes contacting, in a reactor system, the carbon-containing feedstock with a molten salt matrix consisting of a eutectic mixture of alkali metal carbonates, alkaline earth metal carbonates, or a mixture of any two or more thereof, to generate an olefin-containing product stream; and collecting an olefin from the olefin-containing product stream; wherein: the process is conducted in the absence of oxygen, and in the absence of a catalyst comprising a transition metal, a transition metal oxide, a rare-earth metal, a rare earth metal oxide, or a combination of any two or more thereof.

Abstract: A process for the cracking of a carbon-containing feedstock to produce olefins includes contacting, in a reactor system, the carbon-containing feedstock with oxygen gas in the presence of a molten salt matrix consisting of a eutectic mixture of alkali metal carbonates, alkaline earth metal carbonates, or a mixture of any two or more thereof, to generate an olefin-containing product stream; and collecting an olefin from the olefin-containing product stream; wherein: the oxygen is fed with the carbon-containing feedstock in a gas stream comprising from greater than 0 wt % to about 21 wt % oxygen in an inert gas; the process is conducted in the absence of a catalyst comprising a transition metal, a transition metal oxide, a rare-earth metal, a rare earth metal oxide, or a combination of any two or more thereof; and the process is conducted in the absence of a glass-forming oxide.

Abstract: Described herein are methods and compositions that make use of pseudo-complementary bases to reduce unwanted hybridization in assays to detect and/or quantify particular nucleotide sequences, as well as in nucleic acid sequencing protocols.

Abstract: In some examples, a build material recycling system of a three-dimensional (3D) printer can include a build material transport system of the 3D printer, a build material recycling device of the 3D printer that includes a fluidizing membrane and is connected to the build material transport system, and a recycled build material hopper of the 3D printer connected, via the build material transport system, to the build material recycling device.

Abstract: In some examples, a build material recycling system of a three-dimensional (3D) printer can include a build material transport system of the 3D printer, a build material recycling device of the 3D printer that includes a fluidizing membrane and is connected to the build material transport system, and a recycled build material hopper of the 3D printer connected, via the build material transport system, to the build material recycling device.

Abstract: According to examples, a valve assembly may include a port structure having a plurality of valve ports that each has an input opening. The valve assembly may also include an isolation plate movably mounted to the port structure, the isolation plate having a plurality of openings and an isolation opening. The isolation plate may be movable between a first position in which the plurality of openings is aligned with the input openings of the plurality of valve ports and a second position in which none of the plurality of openings is aligned with an input opening of the plurality of valve ports.

Abstract: In some examples, an apparatus includes a plurality of conduits to transport a material of a three-dimensional (3D) printing system between locations in the 3D printing system. A sensor assembly detects a clogged condition of a first conduit of the plurality of conduits. A valve assembly connected to the plurality of conduits selectively controls flow of the material through the plurality of conduits, the valve assembly controllable to actuate from a first setting to a second setting responsive to the detected clogged condition.

Abstract: The technology described herein includes a spreader that creates scattered incidental particles in a build chamber when spreading build material is applied in the build platform. One or more vacuum sources create negative pressure zones in one or more receptacles to collect the incidental particles in the build chamber during printing process and thus minimize the scattering of the incidental particles.

Abstract: In some examples, a build material recycling system of a three-dimensional (3D) printer can include a build material transport system of the 3D printer, a build material recycling device of the 3D printer that includes a fluidizing membrane and is connected to the build material transport system, and a recycled build material hopper of the 3D printer connected, via the build material

Abstract: Techniques are provided for handling a trap encountered in a thread that is part of a thread array that is being executed in a plurality of execution units. In these techniques, a data structure with an identifier associated with the thread is updated to indicate that the trap occurred during the execution of the thread array. Also in these techniques, the execution units execute a trap handling routine that includes a context switch. The execution units perform this context switch for at least one of the execution units as part of the trap handling routine while allowing the remaining execution units to exit the trap handling routine before the context switch. One advantage of the disclosed techniques is that the trap handling routine operates efficiently in parallel processors.

Abstract: A streaming multiprocessor (SM) included within a parallel processing unit (PPU) is configured to suspend a thread group executing on the SM and to save the operating state of the suspended thread group. A load-store unit (LSU) within the SM re-maps local memory associated with the thread group to a location in global memory. Subsequently, the SM may re-launch the suspended thread group. The LSU may then perform local memory access operations on behalf of the re-launched thread group with the re-mapped local memory that resides in global memory.

Abstract: A system, method, and computer program product for warming a cache for a task launch is described. The method includes the steps of receiving a task data structure that defines a processing task, extracting information stored in a cache warming field of the task data structure, and, prior to executing the processing task, generating a cache warming instruction that is configured to load one or more entries of a cache storage with data fetched from a memory.

Abstract: Techniques are provided for restoring threads within a processing core. The techniques include, for a first thread group included in a plurality of thread groups, executing a context restore routine to restore from a memory a first portion of a context associated with the first thread group, determining whether the first thread group completed an assigned function, and, if the first thread group completed the assigned function, then exiting the context restore routine, or if the first thread group did not complete the assigned function, then executing one or more operations associated with a trap handler routine.

Abstract: Techniques are provided for restoring threads within a processing core. The techniques include, for a first thread group included in a plurality of thread groups, executing a context restore routine to restore from a memory a first portion of a context associated with the first thread group, determining whether the first thread group completed an assigned function, and, if the first thread group completed the assigned function, then exiting the context restore routine, or if the first thread group did not complete the assigned function, then executing one or more operations associated with a trap handler routine.

Abstract: The present invention provides a powder-free polymeric coating comprising a latex polymer, a metal oxide and a cross-linking agent, the latex polymer comprising a diene and an acrylic acid; and a powder-free glove comprising the powderless coating polymer.

Abstract: Techniques are provided for restoring threads within a processing core. The techniques include, for a first thread group included in a plurality of thread groups, executing a context restore routine to restore from a memory a first portion of a context associated with the first thread group, determining whether the first thread group completed an assigned function, and, if the first thread group completed the assigned function, then exiting the context restore routine, or if the first thread group did not complete the assigned function, then executing one or more operations associated with a trap handler routine.

Abstract: A streaming multiprocessor in a parallel processing subsystem processes atomic operations for multiple threads in a multi-threaded architecture. The streaming multiprocessor receives a request from a thread in a thread group to acquire access to a memory location in a lock-protected shared memory, and determines whether a address lock in a plurality of address locks is asserted, where the address lock is associated the memory location. If the address lock is asserted, then the streaming multiprocessor refuses the request. Otherwise, the streaming multiprocessor asserts the address lock, asserts a thread group lock in a plurality of thread group locks, where the thread group lock is associated with the thread group, and grants the request. One advantage of the disclosed techniques is that acquired locks are released when a thread is preempted. As a result, a preempted thread that has previously acquired a lock does not retain the lock indefinitely.

Abstract: Techniques are provided for restoring threads within a processing core. The techniques include, for a first thread group included in a plurality of thread groups, executing a context restore routine to restore from a memory a first portion of a context associated with the first thread group, determining whether the first thread group completed an assigned function, and, if the first thread group completed the assigned function, then exiting the context restore routine, or if the first thread group did not complete the assigned function, then executing one or more operations associated with a trap handler routine.

Abstract: The present invention provides a powder-free polymeric coating comprising a latex polymer, a metal oxide and a cross-linking agent, the latex polymer comprising a diene and an acrylic acid; and a powder-free glove comprising the powderless coating polymer.