Abstract: A system for protecting the body and frame of a vehicle from flying debris, particularly during a tire blowout includes a mounting apparatus configured to secure a protective shield, which may be a protective plate and/or fender, to an axle of a vehicle. In embodiments, the protective plate may be mounted to the axel via a mounting apparatus, and the fender may further be mounted to the mounting apparatus and/or protective plate. In some embodiments, the protective plate may be mounted directly to the axel, and the fender may further be mounted to the protective plate, whereby the plate may serve as the mounting apparatus.

Abstract: A hydraulic fracturing pump system may include a hydraulic fracturing pump, a gaseous fuel engine configured to drive the hydraulic fracturing pump, and a transmission system including a gear system mechanically coupled to the hydraulic fracturing pump and torque converter configured to fluidly couple the gaseous fuel engine and the gear system. The torque converter may include an impeller, a turbine fluidly coupled to the impeller and mechanically coupled to the gear system, a stator positioned between the impeller and the turbine, an impeller clutch configured to mechanically couple the impeller to the gaseous fuel engine, and a lockup clutch configured to mechanically couple the gaseous fuel engine and the gear system.

Abstract: A drilling rig assembly and methods of assembling a drilling rig are described. The drilling rig assembly can include a mast, a traveling assembly coupled to the mast, and a racking board configured to be removably coupled to the traveling assembly and removably coupled to the mast.

Abstract: A method assembling a drilling rig is described. The method includes providing a mast of a drilling rig. The mast can include a racking board attached at a first height above a rig floor. The method further includes providing a detachable diving board; aligning the diving board with a traveling assembly of the rig, with one or more rails of the mast, or with a dolly removably coupled to the traveling assembly; removably coupling the diving board to the traveling assembly or the dolly; raising the diving board to the first height, The diving board can be located in a middle portion of the racking board in the first height. Further, the diving board can b removably coupled to the racking board; and decoupled from the traveling assembly or the dolly.

Abstract: A pump system may include a hybrid powertrain that includes a gaseous fuel engine, a transmission coupled to the gaseous fuel engine, a driveshaft coupled to the transmission, a hydraulic fracturing pump coupled to the driveshaft, and a motor system coupled to the hydraulic fracturing pump. The pump system may include a power source electrically connected to the motor system. The pump system may include a controller configured to determine a torque distribution between the gaseous fuel engine and the motor system based at least in part on whether a transient event is associated with the pump system, and cause the gaseous fuel engine and the motor system to operate according to the torque distribution such that the motor system assists or brakes the gaseous fuel engine in driving the hydraulic fracturing pump.

Abstract: A dissolvable solid article that is formed by a homogeneous mixture. The mixture includes from about 10% to about 50% of a water soluble polymer, from about 5% to about 80% of a surfactant; and from about 0.1% to about 40%, of a silicone. The silicone can have a particle size of from about 50 nm to about 25 micron. The silicone can have the article contains up to 0.2% nitrogen coming from the silicone.

Abstract: An axle can include auxiliary flanges separate from the axle flanges. The auxiliary flanges can be configured to accommodate vehicle protection systems. By incorporating auxiliary flanges, such axles facilitate the installation and use of vehicle protection systems.

Abstract: A system for protecting the body and frame of a vehicle from flying debris, particularly during a tire blowout includes a mounting apparatus configured to secure a protective shield, which may be a protective plate and/or fender, to an axle of a vehicle. In embodiments, the protective plate may be mounted to the axel via a mounting apparatus, and the fender may further be mounted to the mounting apparatus and/or protective plate. In some embodiments, the protective plate may be mounted directly to the axel, and the fender may further be mounted to the protective plate, whereby the plate may serve as the mounting apparatus.

Abstract: A control system may include a recirculation circuit configured to direct fluid from an outlet of a fluid pump of a hydraulic fracturing system to an inlet of the fluid pump. The control system may include a control valve in the recirculation circuit. The control system may include a controller configured to cause opening of the control valve to cause the fluid to flow through the recirculation circuit at a first time when proppant is being added to the fluid. The controller may be configured to cause, after closing of the control valve and at a second time when the proppant is no longer being added to the fluid, re-opening of the control valve to cause the fluid to flow through the recirculation circuit to flush the recirculation circuit of the proppant.

Abstract: A semiconductor fabrication method, a semiconductor device and a semiconductor module. The method comprises: providing a stack on a substrate, the stack including a plurality of device layers comprising electrically conductive layers; patterning the stack using an etch to form trenches extending therethrough and pillars between the trenches; providing a carbon-containing liner on sidewalls of the trenches; wet cleaning and drying the stack after providing the carbon-containing liner; filling spaces between the pillars with one or more materials; and electrically coupling contact lines to the electrically conductive layers to form the semiconductor device. The carbon-containing liner may include a carbon-doped liner, such as a carbon-doped oxide liner provided by way of atomic layer deposition of an oxide at temperatures between about 100 degrees Celsius to about 300 degree Celsius using carbon as a precursor.

Abstract: In some implementations, a controller may obtain a setting for a target discharge pressure associated with a fluid pump driven by a motor that is controlled by a variable frequency drive (VFD). The target discharge pressure may be for use in a pressure test of a system that includes the fluid pump. The controller may determine a target torque for the motor that achieves the target discharge pressure. The controller may cause, via the VFD and in connection with the pressure test, adjustment to a speed of the motor to achieve the target torque for the motor.

Abstract: The present invention is directed to a personal care composition comprising from about 14% to about 40% of one or more surfactants; from about 0.1% to about 10% of one or more surfactant soluble agents having a ClogP greater than 3.0; wherein when the personal care composition is diluted to about 1.5% surfactant concentration has a ratio of surfactant diffusion coefficient to soluble agent diffusion coefficient greater than 1.2.

Abstract: A control system may include a recirculation circuit configured to direct fluid from an outlet of a fluid pump of a hydraulic fracturing system to an inlet of the fluid pump. The control system may include a control valve in the recirculation circuit. The control system may include a choke valve in the recirculation circuit. The control system may include a controller configured to cause opening of the control valve to cause the fluid to flow through the recirculation circuit, and cause, based on a pressure of the fluid flowing through the recirculation circuit downstream of the control valve and the choke valve, actuation of the choke valve to maintain the pressure of the fluid below a threshold.

Abstract: A method for connecting drill pipe to a drillstring in a wellbore includes positioning a lower section of drill pipe within a rotary slips and setting the rotary slips. The method includes positioning an upper section of drill pipe over a lower section of drill pipe and signaling an iron roughneck to extend toward a joint of the lower section of drill pipe and upper section of drill pipe. The method includes raising the iron roughneck to a height such that opposing tongs are positioned above and below the joint between the upper section of drill pipe and the lower section of drill pipe, spinning the upper section of drill pipe into the lower section of drill pipe, clamping onto the lower section of drill pipe with the tongs of the iron roughneck, and spinning the upper section of drill pipe into the lower section of drill pipe.

Abstract: Embodiments of the disclosure include methods and compositions for the renewal of cardiomyocytes by targeting the Hippo pathway. In particular embodiments, an individual with a need for cardiomyocyte renewal is provided an effective amount of a shRNA molecule that targets the Sav1 gene. Particular shRNA sequences are disclosed.

Abstract: A mechanism for securing a vehicle protection system to an axle of a vehicle is provided. The mechanism may include a plurality of studs that are configured to secure the vehicle protection system and the backing plate of a brake assembly to an axle flange of a vehicle's axle. Each stud may include an outer end separated from an inner end by a spacer. The outer end may also include an expanded section adjacent the spacer that can be positioned within bolt holes of the axle flange. The expanded section may include knurls for forming a press fit within the bolt holes.

Abstract: A control system may include a recirculation circuit configured to direct fluid from an outlet of a fluid pump, via a first portion of the recirculation circuit, to an inlet of the fluid pump via a second portion of the recirculation circuit. The control system may include a control valve in the recirculation circuit between the first portion and the second portion. The control system may include a check valve downstream of the first portion. The control system may include a controller configured to cause a pulse of the control valve that opens the control valve for a time interval and closes the control valve, and to transmit a signal to indicate that the check valve allows reverse flow of the fluid based on a pressure, in the time interval, of the fluid in the first portion being indicative of the check valve allowing reverse flow of the fluid.

Abstract: A control system may include a recirculation circuit configured to direct fluid from an outlet of a fluid pump of a hydraulic fracturing system to an inlet of the fluid pump. The control system may include a control valve in the recirculation circuit. The control system may include a controller configured to cause opening of the control valve to cause the fluid to flow through the recirculation circuit at a first time when proppant is being added to the fluid. The controller may be configured to cause, after closing of the control valve and at a second time when the proppant is no longer being added to the fluid, re-opening of the control valve to cause the fluid to flow through the recirculation circuit to flush the recirculation circuit of the proppant.

Abstract: A control system may include a recirculation circuit configured to direct fluid from an outlet of a fluid pump of a hydraulic fracturing system to an inlet of the fluid pump. The control system may include a control valve in the recirculation circuit. The control system may include a choke valve in the recirculation circuit. The control system may include a controller configured to cause opening of the control valve to cause the fluid to flow through the recirculation circuit, and cause, based on a pressure of the fluid flowing through the recirculation circuit downstream of the control valve and the choke valve, actuation of the choke valve to maintain the pressure of the fluid below a threshold.

Abstract: A control system may include a recirculation circuit configured to direct fluid from an outlet of a fluid pump, via a first portion of the recirculation circuit, to an inlet of the fluid pump via a second portion of the recirculation circuit. The control system may include a control valve and a choke valve in the recirculation circuit. The control system may include a controller configured to identify, based on a differential pressure that is based on a first pressure of the fluid in the first portion and a second pressure of the fluid in the second portion while the control valve is closed, a position for the choke valve that is to result in a flow velocity of the fluid through the control valve that is below a threshold, and configured to cause actuation of the choke valve in accordance with the position.