Abstract: A mixing system may include a closed mixer having an inlet, a discharge, and an inlet/discharge. The mixing system may also include a recirculation line in fluid communication with the inlet and the inlet/discharge.

Abstract: A clothing accessory having a first band adapted to be located around a person's upper arm, neck or thigh and a second band adapted to be located around the person's wrist when the first band is around the person's upper arm, around the person's upper arm when the first band is around the person's neck, or around the person's ankle when the first band is around the person's thigh. The ends of a chain or ribbon are connected to the first and second bands and at least one of the bands may have a pocket on an inside or outside surface.

Abstract: A positive displacement wellbore servicing pump having a power end and a fluid end is disclosed. The fluid end has a main chamber and a suction bore in fluid connection with the main chamber and the suction bore has a suction central axis vector. A discharge bore is in fluid connection with the main chamber and the discharge bore has a discharge central axis vector. A portion of the suction central axis vector is vertically higher than any portion of the discharge central axis vector. A method of providing a wellbore servicing fluid to a wellbore is also disclosed. A method of providing a wellbore servicing fluid to a fluid end of a positive displacement pump is also disclosed.

Abstract: Various neural-network based surrogate model construction methods are disclosed herein, along with various applications of such models. Designed for use when only a sparse amount of data is available (a “sparse data condition”), some embodiments of the disclosed systems and methods: create a pool of neural networks trained on a first portion of a sparse data set; generate for each of various multi-objective functions a set of neural network ensembles that minimize the multi-objective function; select a local ensemble from each set of ensembles based on data not included in said first portion of said sparse data set; and combine a subset of the local ensembles to form a global ensemble. This approach enables usage of larger candidate pools, multi-stage validation, and a comprehensive performance measure that provides more robust predictions in the voids of parameter space.

Abstract: A mixing system may include a closed mixer having an inlet, a discharge, and an inlet/discharge. The mixing system may also include a recirculation line in fluid communication with the inlet and the inlet/discharge.

Abstract: Methods and systems that utilize explosive and cryogenic means to establish fluid communication to areas away from the well bore walls are disclosed. A first fracture is induced in the subterranean formation. The first fracture is initiated at about a fracturing location and the initiation of the first fracture is characterized by a first orientation line. The first fracture temporarily alters a stress field in the subterranean formation. Explosives are then used to induce a second fracture in the subterranean formation. The second fracture is initiated at about the fracturing location and the initiation of the second fracture is characterized by a second orientation line. The first orientation line and the second orientation line have an angular disposition to each other.

Abstract: A positive displacement wellbore servicing pump having a power end and a fluid end is disclosed. The fluid end has a main chamber and a suction bore in fluid connection with the main chamber and the suction bore has a suction central axis vector. A discharge bore is in fluid connection with the main chamber and the discharge bore has a discharge central axis vector. A portion of the suction central axis vector is vertically higher than any portion of the discharge central axis vector. A method of providing a wellbore servicing fluid to a wellbore is also disclosed. A method of providing a wellbore servicing fluid to a fluid end of a positive displacement pump is also disclosed.

Abstract: Methods and systems for blending a dry material with a fluid in a closed environment are disclosed. A liquid component is supplied from a liquid delivery system to a mixing chamber. A dry component or a high solid content slurry is then supplied from a dry material tank or an external proppant storage to the mixing chamber. The dry component or high solid content slurry is then mixed with the liquid component in a closed system to prepare a desired mixture.

Abstract: Methods and systems that utilize explosive and cryogenic means to establish fluid communication to areas away from the well bore walls are disclosed. A first fracture is induced in the subterranean formation. The first fracture is initiated at about a fracturing location and the initiation of the first fracture is characterized by a first orientation line. The first fracture temporarily alters a stress field in the subterranean formation. Explosives are then used to induce a second fracture in the subterranean formation. The second fracture is initiated at about the fracturing location and the initiation of the second fracture is characterized by a second orientation line. The first orientation line and the second orientation line have an angular disposition to each other.

Abstract: An active valve system may be used to improve operation of the suction valve(s) of a positive displacement pump. As appropriate, the active valve system may apply a force to the suction valve directed to open and/or close the suction valve. By quickening the opening and/or closing of the suction valve, the pump may run at a higher speed and operate with less wear. Additionally, the active valve system may allow all suction valves of a pump to be held open for various purposes.

Abstract: Various neural-network based surrogate model construction methods are disclosed herein, along with various applications of such models. Designed for use when only a sparse amount of data is available (a “sparse data condition”), some embodiments of the disclosed systems and methods: create a pool of neural networks trained on a first portion of a sparse data set; generate for each of various multi-objective functions a set of neural network ensembles that minimize the multi-objective function; select a local ensemble from each set of ensembles based on data not included in said first portion of said sparse data set; and combine a subset of the local ensembles to form a global ensemble. This approach enables usage of larger candidate pools, multi-stage validation, and a comprehensive performance measure that provides more robust predictions in the voids of parameter space.

Abstract: A display, a signage system including the display, and methods of writing the display, are described, wherein the system includes at least one display, at least one writing unit, and at least one holder. Each display includes at least one bi-stable display element and at least one electrical interconnect substrate. The display can be written using the writing unit and displayed in the writing unit or in the holder.

Abstract: The invention relates to a patternable coatable electrically conductive layer comprising a fluid-coated electrically conductive material, wherein the fluid-coated electrically conductive material has sufficient conductivity to induce an electric field strong enough to change the optical state of a light modulating material and a display comprising a substrate, at least one patternable coatable electrically conductive layer comprising a fluid-coated electrically conductive material, wherein said fluid coated electrically conductive material has sufficient conductivity to induce an electric field strong enough to change the optical state of a light modulating material which has a first and a second field-switched stable optical state, and an imaging layer comprising said light modulating material disposed over said at least one patternable fluid-coated electrically conductive layer.

Abstract: The present invention relates to a display sheet comprising a substrate for carrying layers of material, an imaging layer comprising a bistable polymer dispersed cholesteric liquid crystal imaging layer, a first patterned transparent conductor disposed on one side of the bistable polymer dispersed cholesteric liquid crystal imaging layer, a color filter layer, at least one reflective field blooming layer coated over the color filter layer, a second patterned electrode on the side of the bistable polymer dispersed cholesteric liquid crystal imaging layer opposite the first patterned conductor and a method for making the same.

Abstract: The present invention relates to a display sheet comprising a substrate for carrying layers of material, an imaging layer comprising a bistable polymer dispersed cholesteric liquid crystal imaging layer, a first patterned transparent conductor disposed on one side of the bistable polymer dispersed cholesteric liquid crystal imaging layer, a field blooming color filter layer, and a second patterned electrode on the side of the bistable polymer dispersed cholesteric liquid crystal imaging layer opposite the first patterned conductor and a method for making the same.

Abstract: A watermark formed of a bistable material, and a method of forming the watermark, are described.

Abstract: A bistable display having one or more permanent hideable mark, and a method of forming the permanent hideable mark, are described. The permanent hideable mark can be hidden and revealed numerous times without loss of information.

Abstract: A method and system for conserving power and extending battery life in a device are provided wherein the method and system include the use of a save circuit to transfer unused energy from a capacitor back into a battery in the device.

Abstract: A variable stroke assembly enables the piston stroke length of a positive displacement pump to be varied while maintaining a substantially constant unswept volume in the piston cylinder. Alternatively, a variable stroke assembly enables the piston stroke length of a pump or an engine to be varied while maintaining a substantially constant compression ratio. In an embodiment, the variable stroke assembly comprises an automated system that varies the stroke length of the pump or engine piston via an actuator that may be actuated remotely. The automated system may further comprise a linkage assembly that is positioned by the actuator. In an embodiment, the linkage assembly comprises a crankshaft throw, a connecting rod connected to the crankshaft throw, a variable stroke component connected to the connecting rod, and a slider that traverses the variable stroke component to vary the stroke length of the piston.

Abstract: The present invention relates to a display comprising a substrate, a patterned conductor, and a liquid crystal material having cleared areas and electrically writeable areas. The invention also relates to a method for making a display comprising providing a substrate having a patterned conductor thereon, applying a non-cleared liquid crystal material to the substrate, clearing the non-cleared liquid crystal material to produce a cleared liquid crystal material, applying a field to the patterned conductor to produce an image comprised of areas of cleared liquid crystal material and electrically writeble areas of crystal material.