Abstract: A pipeline descaling tool includes a milling tool, a roller assembly and a motor. The milling tool can rotate about a longitudinal axis of the assembly and is sized to fit within an inner volume defined by a pipeline. The milling tool can mill, by rotating, solid obstructions protruding from an inner surface of the pipeline into the inner volume. The roller assembly includes multiple rollers. The roller assembly is axially coupled to the milling tool. The roller assembly can transport the pipeline tool assembly including the milling tool within the inner volume. The motor is connected to the roller assembly and to the milling tool. The motor can rotate the milling tool and power the roller assembly.

Abstract: The disclosure provides a process for manufacturing a tread molding element configured to mold at least a portion of a tire tread, the process comprising the steps of modeling a three-dimensional shape of a tread molding element through a modeling program that can be recognized by a 3D printer; providing one or more plastic compositions comprising one or more thermoplastic polymers having a melting point of at least 180° C.; forming a tread molding element by 3D printing from the one or more plastic compositions; and optionally annealing the tread molding element.

Abstract: Optical systems and methods for object detection and location. One example of an optical system includes a laser radar optical source positioned to emit a pulsed laser beam, a MEMS MMA positioned to scan the beam in a linear scan over a first area of a scene, a laser radar detector positioned to receive and integrate a reflection of the beam, a read-out integrated circuit (ROIC) configured to provide a first read-out signal based on the integrated reflection, and a controller configured to receive the first read-out signal, determine a range to the first area based on a time of flight of the pulsed laser beam, and identify a presence of an object within the scene based on a signal level of the first read-out signal, the first signal level corresponding to a reflectivity of a portion of the object within the first area of the scene.

Abstract: A method includes forming a first and a second contact opening to reveal a first and a second source/drain region, respectively, forming a mask layer having a first and a second portion in the first and the second contact openings, respectively, forming a first and a second sacrificial ILD in the first and the second contact openings, respectively, removing the first sacrificial ILD from the first contact opening, filling a filler in the first contact opening, and etching the second sacrificial ILD. The filler protects the first portion of the mask layer from being etched. An ILD is formed in the second contact opening and on the second portion of the mask layer. The filler and the first portion of the mask layer are removed using a wet etch to reveal the first contact opening. A contact plug is formed in the first contact opening.

Abstract: A method of qualifying semiconductor wafer processing includes: illuminating a semiconductor wafer simultaneously with source light having wavelengths in a plurality of wavebands, including at least a first waveband and a second waveband, the second waveband being different from the first waveband; separating light reflected from the semiconductor wafer as a result of said illuminating, the separating dividing the reflected light according to waveband; generating a first image of the semiconductor wafer based on reflected light separated into the first waveband; and, generating a second image of the semiconductor wafer base on reflected light separated into the second waveband.

Abstract: In one aspect, the invention relates to recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same. In a further aspect, the invention relates to homogenized post-consumer polyethylene terephthalate. In a further aspect, the invention relates to extruded polymer compositions, polymer mixtures, fibers, and/or Bulked Continuous Filament fibers comprising post-consumer polyethylene terephthalate. In a further aspect, the invention relates to processes for preparing recycled polyethylene terephthalate compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: Techniques, methods, systems and articles are described for monitoring electrical equipment of a power grid, identifying installation and/or configuration errors of such electrical equipment, and automatically correcting the errors. In one example, a system includes at least one processor and a plurality of sensors coupled to a multi-phase power line comprising a plurality of electrical cables that are each associated with a respective phase. The plurality of sensors are configured to generate sensor data that is indicative of one or more conditions of the electrical cables. The at least one processor is configured to receive the sensor data and determine, based at least in part on the sensor data, whether a sensor of the plurality of sensors is installed correctly. The at least one processor is also configured to perform an action in response to determining that the sensor is not installed correctly.

Abstract: In one aspect, a gap blocker having a body with an upper blocking portion and leg portions of the body connected to the upper blocking portion at longitudinally spaced apart locations. The leg portions of the body have an initial, undeflected configuration with at least one of the leg portions having a first orientation relative to the upper blocking portion. The leg portions of the body have an operating configuration with the body in a gap between rollers wherein the at least one of the leg portions has the first orientation relative to the upper blocking portion. The upper blocking portion has upper contact portions and the leg portions have lower contact portions for contacting the rollers. The body also has outer surface portions intermediate the upper and lower contact portions configured to be in clearance with the rollers.

Abstract: A combustor includes a skeleton mesh structure having a plurality of structural elements configured to mesh together to form the skeleton mesh structure. The combustor also includes an inner liner and an outer liner mounted to the skeleton mesh structure to define a combustion chamber. The inner liner includes a plurality of inner planks mounted to an inner side of the inner liner and a plurality of outer planks mounted to an outer side of the inner liner. The outer liner includes a plurality of inner planks mounted to an inner side of the outer liner and a plurality of outer planks mounted to the outer side of the outer liner.

Abstract: A display includes a plurality of blue, green and red light emitting micro-LEDs having respective blue, green and red emission spectra having respective emission peaks at respective wavelengths with respective full width at half maxima (FWHMs). A partial light transmitting layer is disposed on the plurality of blue, green and red light emitting micro-LEDs and includes substantially distinct blue, green and red transmission bands with respective blue, green and red FWHMs. For substantially normally incident light, the partial light transmitting layer has an optical transmittance of greater than about 50% at each of the blue, green and red peak wavelengths. The blue, green and red FWHMs of the partial light transmitting layer are less than the respective blue, green and red FWHMs of the blue, green and red light emitting micro-LEDs by at least 10%.

Abstract: A storage system for storing solid hydrogen includes: a plurality of storages including two or more types of solid hydrogen storage materials having different magnetic intensities; a storage container configured to accommodate the storages; and a coil disposed inside the storage container and configured to apply a variable magnetic field to the storages accommodated in the storage container.

Abstract: Systems, devices, and methods related to performing digital predistortion in radio frequency (RF) systems are provided. A digital predistortion (DPD) arrangement includes a DPD actuator circuit to predistort, using DPD coefficients, at least a portion of an input signal, the DPD coefficients associated with a characteristic of a nonlinear component. The DPD arrangement further includes a DPD capture circuit to perform, based on a capture cycle timing, multiple captures of a feedback signal, the feedback signal indicative of an output of the nonlinear component; compute, based on one or more characteristics of the multiple captures, one or more criteria for a subsequent capture of the feedback signal; and perform, based on the one or more criteria, the subsequent capture of the feedback signal. The DPD arrangement circuit further includes a DPD adaptation circuit to update the DPD coefficients based at least in part on the subsequent capture.

Abstract: An adjustable lift rate system on a grass mowing machine such as a riding greensmower having a lift and lower circuit including a plurality of hydraulic lift cylinders to lift and lower a plurality of cutting units, and a controller providing a current to a proportional solenoid valve to bypass the hydraulic lift cylinders. An operator control may be used to adjust the current to the proportional solenoid valve to adjust the lift and lower rate of the cutting units.

Abstract: The present invention relates to a fastening member comprising a base pane, a closure member extending laterally from the base panel, the closure member comprising a closure member upper edge and a closure member lower edge, and a fastening element disposed on the closure member, the fastening element comprising a fastening element upper edge and a fastening element lower edge, wherein the closure member upper edge comprises a concave portion along the fastening element upper edge and the closure member lower edge comprises a convex portion along the fastening element lower edge, and wherein the closure member extends upwardly laterally.

Abstract: A complementary field effect transistor (CFET) structure includes a vertical stack of first and second transistors, wherein the first transistor includes a first channel extending in a first direction from a first source/drain (S/D) region to a second S/D region through a gate extending in a second direction perpendicular to the first direction and the second transistor includes a second channel extending in the first direction from a third S/D region to a fourth S/D region through the gate. A first conductive trace extends in the first direction over the gate, a first via extends from the first S/D region to the first conductive trace and is aligned with the third S/D region along the second direction, a second via extends from the fourth S/D region to the first conductive trace, and the first via has a first height greater than a second height of the second via.

Abstract: Gate isolation techniques disclosed herein form gate isolation fins to isolate metal gates of multigate devices from one another before forming the multigate devices, and in particular, before forming the metal gates of the multigate devices. An exemplary device includes a first multigate device having first source/drain features and a first metal gate that surrounds a first channel layer and a second multigate device having second source/drain features and a second metal gate that surrounds a second channel layer. A gate isolation fin, which separates the first metal gate and the second metal gate, includes a dielectric feature having a first dielectric layer having a first dielectric constant (e.g., a low-k dielectric core) and a second dielectric layer (e.g., a high-k dielectric shell) surrounding the first dielectric layer. The second dielectric layer has a second dielectric constant that is greater than the first dielectric constant.

Abstract: A semiconductor device and a method of forming the same are provided. In an embodiment, an exemplary semiconductor device includes two stacks of channel members; a source/drain feature extending between the two stacks of channel members along a direction; a source/drain contact disposed under and electrically coupled to the source/drain feature; two gate structures over and interleaved with the two stacks of channel members; a low-k spacer horizontally surrounding the source/drain contact; and a dielectric layer horizontally surrounding the low-k spacer.