Abstract: A heavy cabling counterbalance device includes a base portion having a plurality of legs where a battery charger having a charging cable is configured on the base portion. A charging stand having a charging arm and counterweight operates where the charging arm can be easily raised or lowered about a center of gravity such that the charging cable can be connected to a forklift positioned adjacent the base portion for charging its battery.

Abstract: Methods and systems are provided for intelligently detecting pipeline small leaks and thefts. In the Energy Flow Line Method, measured changes in flow data at both ends of the pipeline are monitored and analyzed to detect a leak or a theft. The energy wave front speed and the unsteady flow mathematical model of the subject pipeline is used to calculate leak details. In the Filtered Pressure Waves Method, the measured pressure data at both ends of the pipeline is monitored and analyzed. Pressure waves that do not originate at the ends of the pipeline are selected. Two travelling time windows are applied to those candidates, and the candidates are processed within each window. Leaks, thefts and their details are obtained if the detected leak locations meet the criteria. The Enhanced Filtered Pressure Waves Method, provides the leaked amount and verifies the leak and the leak location to avoid false alarms.

Abstract: A method includes the following: an incidence step in which ultrasonic waves from an insertion side and the side opposite thereto of a tool are caused to be incident on a joint part when a workpiece is joined by the tool that has a probe and a shoulder which supports the probe and that is for friction stir welding; an image acquisition step for obtaining an ultrasonic wave transmission image of the joint part using the ultrasonic waves; and a determination step for determining that the joint part has been joined if width-dimensions of the joint part obtained from the ultrasonic wave transmission image are equivalent to at least the outer diameter d of the probe and if no defect of a prescribed size or greater is found in a range equivalent to the outer diameter D of the shoulder or less in the ultrasonic wave transmission image.

Abstract: Detection of which generators are connected using a common, isolated sub-grid using information from intelligent electronic devices (IEDs) in communication with each generator is disclosed herein. Each IED receives rotor position information from a rotor position detection device of the generator. Each IED may then calculate rotor speed, information of the generator and transmit such information to a central IED. The central IED uses the rotor speed information to determine which generators are connected to a common, isolated sub-grid. The central IED may further use rotor position, rotor speed, and rate-of-change-of-speed information either calculated at the central IED or transmitted from the IEDs.

Abstract: A chemical injection mandrel for injecting chemicals into a Lower Tertiary well includes a chemical injector disposed on an exterior surface of a mandrel. The chemical injection mandrel connects to the production tubing such that the chemical injector portion of the chemical injection mandrel is disposed in the annulus between the production tubing and wellbore at or near the bottom of the hole. A floating production storage and offloading unit on the surface of the water may include a chemical injection pump that injects chemicals downhole via a chemical fluid line that runs in the annulus between the production tubing and the wellbore. The chemical fluid line connects to the chemical injector portion of the chemical injection mandrel and delivers chemicals to the interior passageway of the mandrel of the chemical injection mandrel where the chemicals mix with the production flow directed to the surface.

Abstract: Disclosed herein are systems and methods for estimating a period and frequency of a waveform. In one embodiment, a system may comprise an input configured to receive a representation of the input waveform. A period determination subsystem may perform an iterative process to determine the variable period of the input waveform. The iterative process may comprise selection of an estimated window length, determination of an autocorrelation value based on the estimated window length, determination of an adjustment value to the window length to identify a maximum of the autocorrelation value; and determination of the variable period based on the window length associated with the maximum of the autocorrelation value. The period determination subsystem may perform the iterative process to track changes in the variable period of the input waveform. A control action subsystem may implement a control action based on the variable period of the input waveform.

Abstract: The present disclosure pertains to systems and methods for selectively synchronizing one or more power conversion units of one or more distributed energy resources with a common time source when in an islanded state and with a measured phase angle of a grid when in a grid-connected state. In various embodiments, detecting whether the distributed energy resource is in a grid-connected state or an islanded state comprises microprocessor based analysis of measurement and monitoring data collected by intelligent electronic devices associated with the grid.

Abstract: Square end mill includes long end cutting edge disposed from end portion on outer peripheral side in radial direction to center in the radial direction when a cutting edge portion is viewed from end face side, and short end cutting edges disposed from other end portions on outer peripheral side in radial direction to middles on center side in radial direction, first gashes disposed on regions from lines connecting end portions on center side in radial direction of the short end cutting edges to center in radial direction to the long end cutting edge on rear side in the rotation direction, second and third gashes disposed on rear and front sides in rotation direction of the first gashes, and all gashes formed in curved surface shapes depressed to a shank side on opposite side in axial direction of the cutting edge portion.

Abstract: A semiconductor device package includes a lead frame, an electronic component, a package body, at least one conductive via and a conductive layer. The lead frame includes a paddle, a connection element and a plurality of leads. The electronic component is disposed on the paddle. The package body encapsulates the electronic component and the lead frame. The at least one conductive via is disposed in the package body, electrically connected to the connection element, and exposed from the package body. The conductive layer is disposed on the package body and the conductive via.

Abstract: A floating downwind turbine comprising: a floating foundation; a tower which is rotationally fixed on the floating foundation; an energy conversion unit which is mounted on the tower, comprises a rotor and is rotationally fixedly connected to the tower; and at least one tensioning element which connects the tower or the energy conversion unit to the foundation in the upwind direction, the foundation having three legs, one leg of which is longer than the other two legs, the legs being interconnected in a Y shape and the tower, being arranged on the foundation in the connecting region of the legs, and the longest leg extending in the upwind direction and being connected to the tower or to the energy conversion unit by the tensioning element.

Abstract: A novel metal organic framework, EMM-42, is described having the structure of UiO-66 and comprising bisphosphonate linking ligands. EMM-42 has acid activity and is useful as a catalyst in olefin isomerization. Also disclosed is a process of making metal organic frameworks, such as EMM-42, by heterogeneous ligand exchange, in which linking ligands having a first bonding functionality in a host metal organic framework are exchanged with linking ligands having a second different bonding functionality in the framework.

Abstract: The present disclosure relates to detection of faults in an electric power system. In one embodiment, a time-domain traveling wave differential subsystem is configured to determine at a first terminal a first index between an arrival maximum of a traveling wave generated by a fault at the first terminal and an exit maximum of the traveling wave. The traveling wave subsystem also determines a second index between an arrival maximum of the traveling wave at the second terminal and an exit maximum of the traveling wave. An operating quantity and a restraint quantity may be determined based on a magnitude of the representations of electrical conditions in the first index and the second index. A fault may be declared based on a comparison of the operating quantity and the restraint quantity. A protective action subsystem may be configured to implement a protective action based on the declaration of the fault.

Abstract: A method for changing a signal value of an FPGA at runtime, including the steps of loading an FPGA hardware configuration with at least one signal value onto the FPGA, running the FPGA hardware configuration on the FPGA, setting the signal value for transfer to the FPGA, determining writeback data from the signal value, writing the writeback data as status data to a configuration memory of the FPGA, and transferring the status data from the configuration memory to the functional level of the FPGA. A method is also provided for performing an FPGA build, including the steps of creating an FPGA hardware configuration with a plurality of signal values, arranging signal values in adjacent areas of the FPGA hardware configuration, ascertaining memory locations of a configuration memory for status data of the plurality of signal values on the basis of the FPGA hardware configuration, and creating a list containing signal values.

Abstract: A high flow downhole lock assembly includes a mandrel with a plurality of external collet finger detents disposed about an exterior surface and an unobstructed inner diameter configured for flow, an external collet with a plurality of collet fingers disposed about an interior surface, and a dog housing with a plurality of extendable retaining dogs. When transitioning to a set configuration, a portion of the mandrel travels within the external collet, the plurality of collet fingers come to rest in one or more of the external collet finger detents, and the plurality of extendable retaining dogs are extended.

Abstract: Disclosed herein are an apparatus and a method for mixing and/or mulling a sample, the apparatus comprising at least one container made of a flexible material and containing a sample, means for holding the container, and means for impacting the container, wherein the means for holding and the means for impacting are movable relative to each other, and wherein the means for holding, the means for impacting, and the container are arranged such that the means for impacting and the container can repeatedly collide, whereby an energy of collision can be imparted to the sample, thereby mixing and/or mulling the sample. Also disclosed is an assembly for performing high throughput experiments including the apparatus for mixing and/or mulling a sample and an extruder configured to receive a sample weighing less than 100 grams.

Abstract: A suspended-matter removing method and a suspended-matter removing apparatus are disclosed that require no sludge treatment facility, and inexpensively provide filtrate satisfying a water quality standard. The suspended-matter removing method includes: feeding a protrusion element to a filter layer formed by filling a solid filter material, adding a protrusion to a surface of the solid filter material; after feeding protrusion element, determining whether a protrusion has been added to the surface of the solid filter material, and when it is determined that the protrusion has been added, reducing a feeding amount of the protrusion element as compared with when adding the protrusion; forming a biofilm on the surface of the solid filter material; and passing water to be treated containing suspended matters through the filter layer having the solid filter material added with the protrusion in a state in which the feeding amount of the protrusion element is reduced.

Abstract: A shooting simulation system and method for training personnel in targeting visual and non-line-of-sight targets. The firearm simulation system has a plurality of participants each having a firearm and each being equipped to transmit their location to a remote computer server for storage and use with other transmitted data to determine which participant was a Shooter and which participant was the Shooter's target and for determining a simulated hit or miss of the target and assessing the simulated damage to the target.

Abstract: The present disclosure relates to detection of faults in an electric power system. In one embodiment, an incremental quantities subsystem may be configured to calculate a plurality of values of an operating quantity based on the plurality of time-domain representations of electrical conditions. The incremental quantities subsystem may also calculate a plurality of values of a restraining quantity based on the plurality of time-domain representations of electrical conditions. An interval during which the calculated operating quantity exceeds the calculated restraining quantity may be determined. A fault detector subsystem may be configured to declare a fault based on the calculated operating quantity exceeding the calculated restraining quantity by a security margin. A protective action subsystem configured to implement a protective action based on the declaration of the fault.

Abstract: The invention relates to an improved and simpler method and to an apparatus for the determination of the CO2 emission factor in flare gas plants comprising the steps: a) measuring the speed of sound in the flare gas; b) detecting known proportions of N2, CO2 and H2O; c1) calculating a maximum speed of sound of the flare gas under the assumption that the hydrocarbon proportion of the flare gas only consists of alkanes having a chain length i; c2) calculating a minimal speed of sound of the flare gas under the assumption that the hydrocarbon proportion of the flare gas only consists of alkanes having a chain length i+1; c3) varying the chain length i for so long until the measured speed of sound lies between the calculated minimal speed of sound and the calculated maximum speed of sound; d) varying the proportions of the alkanes having the chain length i and the chain length i+1 determined in step c) for so long until the speed of sound calculated with these proportions lies within a predefined difference from