Abstract: Treatment fluid may be injected into a wellbore of a geological formation to stimulate fracturing of the geological formation. A plurality of measurements may be received from one or more sensors on a surface of the geological formation or downhole which measures an indication of change of the geological formation based on the stimulation. A fracture configuration of a fracture in the geological formation may be determined based on an Kalman gain and the plurality of measurement data. Injection of the treatment fluid into the wellbore may be adjusted based on the fracture configuration.

Abstract: Thermal management systems include an open circuit refrigeration system featuring a first receiver configured to store a gas, a second receiver configured to store a liquid refrigerant fluid, an evaporator configured to extract heat from a heat load that contacts the evaporator, and an exhaust line, where the first receiver, the second receiver, the evaporator, and the exhaust line are connected to provide a refrigerant fluid flow path.

Abstract: Provided is an improved multilayered ceramic capacitor and an electronic device comprising the multilayered ceramic capacitor. The multilayer ceramic capacitor comprises first conductive plates electrically connected to first external terminations and second conductive plates electrically connected to second external terminations. The first conductive plates and second conductive plates form a capacitive couple. A ceramic portion is between the first conductive plates and said second conductive plates wherein the ceramic portion comprises paraelectric ceramic dielectric. The multilayer ceramic capacitor has a rated DC voltage and a rated AC VPP wherein the rated AC VPP is higher than the rated DC voltage.

Abstract: A system can calculate estimated strain data for a fracture in a geological formation at each of a plurality of selected locations detectable by a strain measurement device. The system can receive real strain data from the strain measurement device for the geological formation. The system can perform a linear inversion to determine a probable distribution of fluid volume and hydraulic fracture orientation in the geological formation based on the estimated strain data and real strain data. The system can determine adjustments for a fracturing operation based on the linear inversion.

Abstract: Circuits, integrated circuits, apparatuses, and methods, such as those for protecting circuits against electrostatic discharge events are disclosed. An example apparatus comprises a thyristor coupled to a node and configured to limit the voltage and discharge the current associated with an over-voltage event at the node. The over-voltage event includes a negative voltage having a magnitude that exceeds a trigger voltage of the thyristor. The example apparatus further comprising a transistor coupled to the thyristor and configured to adjust the magnitude of the trigger voltage.

Abstract: A chemical measurement device for determining the concentration of given chemical in a given fluid has at least one LED light source and at least one light detector. The given chemical has a light absorption curve with a peak, and the at least one LED light source and at least one light detector are configured to collaborate to produce two light signals having peak wavelengths between about 5 nm and 35 nm apart. The two light signal peak wavelengths are in the ultraviolet region with wavelengths beyond the light absorption curve peak. The light signal peak wavelengths, however, also are before the light absorption curve is negligible. The device also has a concentration calculator operatively coupled with the at least one light detector. The concentration calculator is configured to compare the two light signals to produce a concentration signal representing the concentration of the given chemical in the given fluid.

Abstract: A system disinfects air. The system includes an elongated chamber having an inlet configured for air to flow into the chamber. The chamber also has an outlet configured for air to flow out of the chamber, and a sidewall formed from a material that is at least 90% UVC reflective. The chamber defines a longitudinal axis. A LED is positioned to emit UVC radiation in a direction substantially perpendicular to the longitudinal axis of the chamber. A filter is configured to trap pathogens. The filter is formed of a material that is UVC reflective and UVC transmissive.

Abstract: A technique is described for generating a unified list (e.g., a list ribbon) of programs from a variety and disparate channels, the list for display on an over-the-top (OTT) client device. As an example, the unified list can be generated from OTT live channels and from over-the-air OTA and/or Advanced Television Systems Committee (ATSC) live channels. Further, the unified list can include OTT recordings on the cloud and OTA/ATSC recordings on the local hard drive connected to an OTA local DVR. Thus, the OTT device Client obtains the list from the DVR backend, instead of going to the local OTA client box for the local recordings.

Abstract: The present disclosure describes radiation-assisted, substrate-free, and solution-based nanostructure (e.g., a nanotube and/or a nanowire (NW)) growth processes. The processes use the high absorption coefficient and high density of free charge carriers in particle seeds (e.g., nanoparticles, metal nanoparticles, and/or metal nanocrystals) to photothermally drive semiconductor nanostructure growth. The processes can be performed at atmospheric pressure, without specialized equipment such as specialized heating equipment and/or high-pressure reaction vessels.

Abstract: Circuits, integrated circuits, apparatuses, and methods, such as those for protecting circuits against electrostatic discharge events are disclosed. An example apparatus comprises a thyristor coupled to a node and configured to limit the voltage and discharge the current associated with an over-voltage event at the node. The over-voltage event includes a negative voltage having a magnitude that exceeds a trigger voltage of the thyristor. The example apparatus further comprising a transistor coupled to the thyristor and configured to adjust the magnitude of the trigger voltage.

Abstract: A technique is described for generating a unified list (e.g., a list ribbon) of programs from a variety and disparate channels, the list for display on an over-the-top (OTT) client device. As an example, the unified list can be generated from OTT live channels and from over-the-air OTA and/or Advanced Television Systems Committee (ATSC) live channels. Further, the unified list can include OTT recordings on the cloud and OTA/ATSC recordings on the local hard drive connected to an OTA local DVR. Thus, the OTT device Client obtains the list from the DVR backend, instead of going to the local OTA client box for the local recordings.

Abstract: A system for calibrating an optical fiber measurement system is disclosed that can be used with deformable body parts of an anthropomorphic test device. The system includes a deformable body part and an optical fiber that has a plurality of grating sensors between first and second ends is supported about the deformable body part to generate optical strain data. The deformable body part is loaded into a testing fixture and a load is applied. At least one camera is positioned toward the testing fixture to record the deformable body part as the load is applied thereto and to capture images generating image deformation data for comparison with the optical strain data to determine a correlation, or correction, factor for the optical fiber and the body part.

Abstract: Described are systems and methods for determining a distance between a hydraulic fracture of a child well to a parent wellbore of a parent well. A distributed accoustic sensor fiber optic cable measures strain measurements along a length of the parent wellbore. A computing device then calculates the distance between the hydraulic fracture and the parent wellbore by inputting the strain measurements into a fracture strain model to solve for a location of the hydraulic fracture. A sub-surface process may be adjusted based on the calculated distance between the hydraulic fracture and the parent wellbore to avoid or utilize a frac hit.

Abstract: A perforation tool for perforating casing in a borehole. The perforation tool may include a body, charges spaced along an axial length of the body, and a first compartment positioned along the axial length of the body. The compartment may be filled with a diverter material and operable to selectively release the diverter material.

Abstract: An apparatus and method for cooling an optical fiber, comprising impinging electromagnetic radiation from a laser on an optical fiber comprising a core, in which the electromagnetic radiation is substantially confined, and a cladding, in thermal communication with the core, configured to provide optically activated cooling of the core via the electromagnetic radiation from the laser.

Abstract: An apparatus and method of indirectly cooling an optomechanical resonator, comprising impinging a laser on an optomechanical resonator attached to a substrate, wherein the optomechanical resonator comprises a cantilever, a cooling end of the cantilever, having a cooling end comprising a laser-induced cooling element, an attachment end of the cantilever, attached to a substrate, and wherein the laser has a peak wavelength in the near-infrared band.

Abstract: A cover for a container that includes a lid portion and a collar element. The lid portion having a main body section surrounded by a peripheral sealing shoulder. The collar element having a peripheral collar sealing shoulder that includes a collar groove and wherein the lid portion is connected to the collar portion through a hinge element. The lid portion, collar element and hinge portion are formed as a unitary structure and the lid portion articulates from an open positon in which it is spaced apart from the collar element to a closed position wherein the peripheral bead sealing shoulder of the lid portion engages with the peripheral collar sealing shoulder of the collar element.

Abstract: A system for downhole wellbore vector strain sensing including a strain sensor positionable between an outer surface of a wellbore casing and a subterranean formation for sensing a plurality of strain tensor elements, the plurality of strain tensor elements comprising multiple components of a strain tensor; a computing device positionable at a surface of a wellbore and communicatively coupled to the strain sensor; and a communication link between the strain sensor and the computing device for communicatively coupling the strain sensor to the computing device to relay strain data, the strain data comprising the plurality of strain tensor elements.

Abstract: A flexible grip for a golf club having in one version a groove with an acute angle undercut grove in either or both the inner and outer surface to improve gripability. In another version, either or both of the inner and outer surface may be textured with peaks and valleys with radius less than 0.2 mm. In another version, either or both of the inner and outer surfaces may have a textured surface with raised portions having a height less than 0.3 mm. In another version, either or both the inner and outer surface may have a microtexture with raised portions having a transverse section width not greater than 0.3 mm with a height about 2 multiples of the transverse section width. In another version, the wall of the grip has voids or hollow spaces for improved cushioning for the user's grip.