Abstract: In exemplary implementations of this invention, an actuated fabricator deposits structural elements (e.g., tensile structural elements) in a 3D pattern over large displacements. The fabricator is supported by at least three elongated support members. It includes onboard actuators that translate the fabricator relative to the ends of the support members. The fabricator is configured, by actuating different translations along different support members, to translate itself throughout a 3D volume. In some implementations, each of the actuators use fusible material to fuse metal tapes together, edge-to-edge, to form a hollow structure that can be shortened or lengthened.

Abstract: A method includes creating a digital description of the well construction system, wherein the digital description of the well construction system describes the locational relationship of components in the well construction system, collecting multiple types of data from a well construction system, and tagging the collected data with an identification indicating at least one of a location of a source of collected data and a component in the well construction system from which the data is collected. The multiple types of data include sensor data collected from one or more sensors disposed along the well construction system and operational state data indicating an on/off status of one or more components in the well construction system.

Abstract: The present invention provides a patterned tissue product comprising a first surface with a first and a second pattern disposed thereon, the first pattern comprising a curvilinear design element having a first maximum segment length and the second pattern comprising a curvilinear design element having a second maximum segment length wherein the second maximum segment length is from about 50 to about 150 percent of the first maximum segment length.

Abstract: A camera for a vehicle vision system includes a front housing portion, a circuit board, and a rear housing portion having a connector portion for connection of a vehicle coaxial cable. The circuit board includes a first solder pad for soldering a core pin connecting element, and a second solder pad that partially circumscribes the first solder pad for soldering a shielding connecting element. The second solder pad only partially circumscribes the first solder pad so as to have a gap between opposing ends of the second solder pad. The gap is configured to allow for escape of gases that evaporate out of the solder during the soldering process. The core pin connecting element electrically connects between a core pin of the connected coaxial cable and circuitry of the circuit board and the shielding connecting element electrically connects between shielding of the coaxial cable and circuitry of the circuit board.

Abstract: A method and autodriller for drilling a wellbore with a drill rig by rotating a drillstring and a drill bit with a drill rig drive system; applying an initial weight of the drillstring on the drill rig WOB; measuring drill rig properties to derive an anticipated drill bit rotation speed; and changing the weight of the drillstring on the drill rig WOB so that a corresponding change to the downhole weight on the drill bit occurs approximately simultaneously with a change in the anticipated drill bit rotation speed.

Abstract: Exemplary embodiments are provided of internally fed directional folded Yagi antenna assemblies. In an exemplary embodiment, an antenna assembly generally includes a boom, a cable assembly, and a plurality of dipole elements spaced apart along the boom. The dipole elements include a folded dipole element. The feed cable assembly is internally fed inside the boom and a first section of the folded dipole element.

Abstract: A method for detecting an influx and/or loss of circulation in a wellbore, comprising measuring a condition in the wellbore using a downhole sensor; determining that a positive displacement pump is shut off or turned on; predicting pit volume and/or gas concentration at a plurality of time points after the positive displacement pump is shut off or turned on using the measured condition in the wellbore prior to the positive displacement pump is shut off or turned on, wherein the measured condition correlates with the pit volume and/or gas concentration; measuring pit volume and/or gas concentration at the plurality of time points; comparing the predicted and the measured pit volumes and/or gas concentrations at the plurality of time points; and producing a warning signal if the difference between the predicted and the measured pit volumes and/or gas concentrations is greater than a pre determined value.

Abstract: A method and autodriller for monitoring hookload in a well drilling system that measures raw hookload; determines a velocity of a travelling block; holds the travelling block in a non-lowering state for a first period of time; lowers the travelling block for a second period of time; calculates contribution to hookload of a component linear in the block velocity; calculates contribution to hookload of a component linear in a direction (sign) in the block velocity; and corrects measured raw hookload by the calculated contributions.

Abstract: The present invention provides a method of producing a decorative tissue product, while controlling tensile degradation in a predicable fashion. The foregoing properties may be achieved using differential depth embossing in conjunction with an embossing pattern having particular characteristics. The use of an engraved roll, such as an embossing roll, having protuberances of differing depths and patterns not only improves the properties and characteristics of the fibrous structure, but may also be used to impart a unique pattern that provides the product with a distinctive look and is appealing to consumers. Generally the unique pattern results from a first set of protuberances having a first height and defining a first pattern and a second set of embossing elements having a second height and defining a second pattern, where the first height is greater than the second height.

Abstract: A system and method for operating a mud motor in a wellbore. The method includes running the mud motor into the wellbore. A threshold rate of a pressure increase over time is selected. A rate of a pressure increase over time is measured across the mud motor in the wellbore. A flow rate of a fluid being pumped into the wellbore is varied when the measured rate is greater than or equal to the threshold rate.

Abstract: A method and apparatus for controlling a drilling system by: implementing a network of Level 1 direct control processing systems and Level 2 coordinated control processing systems, wherein the level 1 direct control and Level 2 coordinated control processing systems are communicatively coupled to each other; operating the Level 2 coordinated control processing systems to: receive uphole drill string property measurements from sensors associated with the drill string near the driver, execute a control algorithm based on the received drill string property measurements to generation an actuator command, and transmit the actuator command to the Level 1 direct control processing systems; and operating the Level 1 direct control processing systems to control the driver based on the actuator command.

Abstract: A feedback control system may include a feedback controller for controlling a plant using pulse density signals. The feedback controller may include a pulse density signal generator and a controller logic circuit. The pulse density signal generator may receive input command signals and generate signed or unsigned pulse density input signals. The controller logic may receive the pulse density input signals from the pulse density signal generator and feedback pulse density signals from the plant and may generate corresponding pulse density control signals for controlling the plant based on the input command signals. The controller logic may include a sign change logic, an addition circuit, and an optional amplifier circuit. The pulse density signal generator may also include rate transition circuits for ensuring that the pulse density input signals and the feedback pulse density signals are uncorrelated.

Abstract: Apparatus and methods automate selection of patient interface(s) according to their size, such as with processing in a processor(s) or in a server(s). Image data captured by an image sensor may be received. The captured image data may contain facial feature(s) of an intended user of the patient interface. The facial features may be captured in association with a predetermined reference feature of known dimension(s). The user's facial feature(s) and the reference feature may be detected in the captured image data. Image pixel data of the image may be processed to measure an aspect of the detected facial feature(s) based on the reference feature. A patient interface size may be detected from standard patient interface sizes based on a comparison between the measured aspect of the facial feature(s) and a data record relating sizing information of the standard patient interface sizes and the measured aspect of the facial feature(s).

Abstract: A downhole tool is provided for measuring accelerations at a location within a subterranean borehole. The tool is rotatable around the longitudinal direction of the borehole. The tool includes four accelerometers, each accelerometer measuring acceleration in a respective direction and being arranged such that at least a component of its measured acceleration is normal to the longitudinal direction. The accelerometers are further arranged such that no more than any two of the four accelerometers have their respective components parallel to the same direction. The tool also includes a first device which measures the rotational speed of the tool. The tool also includes a processor unit which relates the acceleration measured by each accelerometer to the true acceleration at that accelerometer by a respective scaling term and a respective offset, and combines the measured accelerations and the tool rotational speed to re-calibrate the scaling terms as the tool rotates.

Abstract: A downhole tool for measuring angular positions at a location within a subterranean borehole. The tool is rotatable around the longitudinal direction of the borehole. The tool includes two or more magnetometers which measure the Earth's magnetic field along respective magnetometer axes. Each magnetometer is arranged such that its measurement includes a component of the Earth's magnetic field normal to the longitudinal direction of the borehole. The magnetometers are further arranged such that these normal components are at an angle to each other around the longitudinal direction. The tool further includes a device which measures the rotational speed of the tool or the time derivative thereof. The tool includes a processor unit that calculates angular positions of the downhole tool around the longitudinal direction relative to the direction of the Earth's magnetic field from the measurements of the Earth's magnetic field and the tool rotational speed or time derivative thereof.

Abstract: A bottomhole assembly for performing a wellbore operation comprising a plurality of full-gauge components that are each radially expandable and retractable between respective first positions and respective second positions, wherein the first positions each have a diameter which is substantially the same as that of the wellbore and wherein the second positions each have a diameter which is substantially smaller than that of the wellbore. The plurality of full-gauge components comprise a full-gauge drill bit and one or more full-gauge stabilizers. The bottomhole assembly may further comprise a rotary steerable system and/or a motor.

Abstract: A feedback control system may include a feedback controller for controlling a plant using pulse density signals. The feedback controller may include a pulse density signal generator and a controller logic circuit. The pulse density signal generator may receive input command signals and generate signed or unsigned pulse density input signals. The controller logic may receive the pulse density input signals from the pulse density signal generator and feedback pulse density signals from the plant and may generate corresponding pulse density control signals for controlling the plant based on the input command signals. The controller logic may include a sign change logic, an addition circuit, and an optional amplifier circuit. The pulse density signal generator may also include rate transition circuits for ensuring that the pulse density input signals and the feedback pulse density signals are uncorrelated.

Abstract: In exemplary implementations of this invention, an actuated fabricator deposits structural elements (e.g., tensile structural elements) in a 3D pattern over large displacements. The fabricator is supported by at least three elongated support members. It includes onboard actuators that translate the fabricator relative to the ends of the support members. The fabricator is configured, by actuating different translations along different support members, to translate itself throughout a 3D volume. In some implementations, each of the actuators use fusible material to fuse metal tapes together, edge-to-edge, to form a hollow structure that can be shortened or lengthened.

Abstract: A camera for a vehicle vision system includes a front housing portion, a circuit board, and a rear housing portion having a connector portion for connection of a vehicle coaxial cable. The circuit board includes a first solder pad for soldering a core pin connecting element, and a second solder pad that partially circumscribes the first solder pad for soldering a shielding connecting element. The second solder pad only partially circumscribes the first solder pad so as to have a gap between opposing ends of the second solder pad. The gap is configured to allow for escape of gases that evaporate out of the solder during the soldering process. The core pin connecting element electrically connects between a core pin of the connected coaxial cable and circuitry of the circuit board and the shielding connecting element electrically connects between shielding of the coaxial cable and circuitry of the circuit board.