Abstract: A method for rejuvenating a strand-blocked cable having a conductor comprised of a plurality of conductor strands with interstitial volume therebetween blocked by a PIB based mastic, the conductor being surrounded by a polymeric cable insulation. The method comprising installing injection adapters that seal the cable ends of the cable and are usable to inject fluid into the interstitial volume between the conductor strands of the cable; elastically expanding the polymeric cable insulation through the application of pressure to the interstitial volume between the conductor strands of the cable; and injecting at least one injection fluid in which the PIB based mastic is at least partially soluble into the interstitial volume between the conductor strands of the cable. To facilitate elastic deformation of the polymeric cable insulation, the cable may be heated to and maintained at a temperature of T1 above ambient during the injection.

Abstract: A flow rate control device 100 includes a control valve 6 provided in a flow path 1, a flow rate measurement unit 2, 3 for measuring fluid flow rate controlled by the control valve 6, and a controller 7. The controller 7 is configured so as to control the opening/closing operation of the control valve 6 to match the measurement integral flow rate based on the signal outputted from the flow rate measurement unit (Vn+Vd) to the target integral flow rate Vs.

Abstract: Fault diagnostics utilize an embedded tracking digital twin of a valve assembly physical part in a microprocessor system of the valve positioner. The digital twin has simulation model parameters including a fault-related simulation model parameter. The digital twin receives a control signal representing a real control of the at least part of the valve assembly, and generates simulated measurements relating to the simulated control result. The digital twin compare the simulated measurements with real measurements that relate to the real control result, to track an error between the results of simulated operation and the real operation of the valve assembly to adjust the fault-related simulation model parameter in a sense that the error is decreased. The fault-related simulation model parameter relates to a specific physical fault in the physical part of the valve assembly, and it is detectable and identifiable based on the simulation model parameter adjusted value.

Abstract: To determine efficiencies of wellbore pressure control valves, results of manufacturer tests performed by a manufacturer of a pressure control valve (PCV) are identified. The PCV is configured to control flowrate of a fluid through a pipeline. The manufacturer tests correlate quantities of the fluid that the PCV allows to flow through the pipeline at respective open positions of the PCV. After installing the PCV in a flowline downstream of a production tree disposed within a hydrocarbon gas production wellbore to control hydrocarbon gas flowrate through the production wellbore, operational tests are performed on the PCV to measure quantities of the hydrocarbon gas that the PCV allows to flow through the flowline at the respective open positions of the PCV. The results of the manufacturer tests are compared with results of the operational tests. Based on a result of the comparing, an operational condition of the PCV is determined.

Abstract: A fluid injector system has a controller for operably controlling the injection of contrast and/or saline into a patient. The controller allows a user to program a diagnostic injection procedure having one or more phases according to which the contrast and/or saline will be injected into the patient so as to effect enhancement of a region thereof during an imaging procedure. It further allows the user to program a test injection procedure to be performed prior to the diagnostic injection procedure. The test injection procedure is implementable as: (a) a variable single phase test injection in which the rate at which the saline is to be delivered is selectable prior to and may be varied during performance thereof; and/or (b) a multi-phase test injection in which the rate at which the saline is to be delivered is selectable for each phase of the multi-phase test injection prior to performance thereof.

Abstract: A flow rate control device capable of suppressing overshoot while improving responsiveness at the beginning of flow rate control includes: a flow rate meter that measures a flow rate of a fluid flowing through a flow path; a flow rate regulating valve that regulates the flow rate of the fluid flowing through the flow path; and a control part that controls an opening degree of the flow rate regulating valve based on a measurement result of the flow rate meter, the flow rate control device has: a low flow rate rapid valve opening function that accelerates an outflow of the fluid by forcibly opening the opening degree of the flow rate regulating valve from fully closed degree to a designated opening degree when the opening degree of the flow regulating valve is fully closed and a flow rate control is started; and an overshoot suppressing function that is used for suppressing the overshoot by making the flow rate control stand by until a preset standby time or a preset flow rate threshold is reached immediately a

Abstract: The invention concerns a method for controlling a mechanism (10) displaying asymmetrical behaviour, the mechanism (10) comprising a first operating direction (F+) and a second operating direction (F?), the control method making it possible to generate, using a control module (24) of a computer (20), a control signal (x_com) from a setpoint signal (x_cons), in which—when the setpoint signal (x_cons) indicates that the mechanism (10) should be operated in the first direction (F+), the control module (24) applies a first corrector (100) to the setpoint signal (x_cons) in order to generate a control signal (x_com),—when the setpoint signal (x_cons) indicates that the mechanism (10) should be operated in the second direction (F?), the control module (24) applies a second corrector (100) to the setpoint signal (x_cons) in order to generate a control signal (x_com), and in which the first and second correctors (100, 200) have different parameters (Kp1, Kp2, Ti1, Ti2), in order to compensate for the asymmetrical beha

Abstract: The present invention specifically relates to the pneumatic and electronic application of a pneumatic leak meter based on absolute pressure drop measurement having the peculiarity of compensating for ambient variations such as ambient temperature and temperature of the measured part, as well as mechanical deformations of the component being tested caused by the pressure being applied.

Abstract: A method for operating a water treatment plant, wherein the plant is equipped with an apparatus for injecting a gas containing oxygen into an effluent, the method comprising a phase of detecting anomalies in the operation of the apparatus, wherein the phase of detecting anomalies comprises an implementation of the following steps: providing data representative of the operating state of the apparatus; and providing a system for acquiring and processing said data.

Abstract: A work vehicle and a method of controlling propulsion of a work vehicle includes an auxiliary work tool. The method includes receiving a propulsion input for propelling the work vehicle at a propulsion speed, determining a prime mover speed for a prime mover configured to propel the work vehicle, propelling the work vehicle with a prime mover output based on the propulsion input, operating the auxiliary work tool while propelling the work vehicle, determining an auxiliary work tool load from operation of the auxiliary work tool, determining whether the auxiliary work tool load of the auxiliary work tool exceeds an auxiliary work tool load threshold, and reducing the propulsion speed of the work vehicle if the auxiliary work tool load of the auxiliary work tool exceeds the auxiliary work tool load threshold.

Abstract: Techniques for controlling water pressure at a plurality of water customer service sites are described. In an example, a first plurality of water service sites having water pressure values greater than a first threshold value are identified. A second plurality of water service sites having pressure values less than a second threshold value are identified. Valves controlling water flow to respective customer service sites within the first and second pluralities of water service sites are adjusted. The adjustments increase water pressure in the second plurality of water service sites to a pressure above a minimal target pressure. The adjustment maintains the water pressure of the first plurality of service sites above the minimal target pressure. In an example, groups of water service sites are associated with respective water mains and/or water pressure sensors. Information shared between groups may assist in adjusting water valves within the water system.

Abstract: A mechanical wound therapy (MWT) system includes a connection for a vacuum source, which is routed through an airtight covering to a porous material positioned over the wound. The porous material may be a tubing network interspaced by a netting material constructed of biologically inert or bioabsorbable material. Alternatively, the porous material may be a layered unified dressing in which layers of mesh, netting or thin perforated film are separated and fixedly attached to functional elements of the dressing (e.g., irrigation tubing) or spacers. The vacuum and irrigation systems may be completely separated. An airtight sealing layer or foldable adhesive sealing layer may seal the dressing and facilitate sealing the dressing to the wound margins. Additional modular devices such as a wound approximating system, positive pressure bladders and adjuvant therapy modules as well as enhanced monitoring technology can be added to synergistically increase the capabilities of each dressing.

Abstract: A plumbing fixture assembly including a fluid flow detection system for monitoring fluid flow and flow characteristics through plumbing fixtures without contacting the fluid. The fluid flow detection system communicates collected data related to the plumbing fixtures to a water management system, which analyzes the data and provides information to a user through a portal and user interface. The fluid flow detection system also tracks users of the plumbing fixtures for compliance with a hand washing routine. The hand washing compliance data is communicated to the water management system as well.

Abstract: A supplementary device configured to be releasably attached to an injection device includes at least one wireless communication unit and at least one sensor, wherein the supplementary device is configured to activate the at least one sensor in response to receipt via the at least one wireless communication unit of a wireless communication from an external device, following activation, to use the at least one sensor to detect the start of an injection by the injection device, and to communicate, via the at least one wireless communication unit, the start of the injection to the external device.

Abstract: A control device of a piston pump unit comprising at least two piston-cylinder units that operate in a phase-shifted manner for the purpose of liquid chromatography and to a piston pump unit is described. The control device corrects fluctuations of the system pressure while switching from one piston cylinder unit to the respective other piston cylinder unit. The fluctuations can occur as a result of the cooling of the liquid medium that is heated in an adiabatic manner during a pre-compression phase in the working piston. The control unit controls the piston speed of at least one piston-cylinder unit during the transition phase depending on at least one characteristic, which is ascertained from chronologically previously detected pressure values, such that variations of the system pressure as a result of the cooling of the adiabatically heated medium are at least partially compensated for.

Abstract: A method for calibrating a gas flow metrology system for a substrate processing system includes a) measuring temperature using a first temperature sensor and a reference temperature sensor over a predetermined temperature range and determining a first transfer function; b) measuring pressure using a first pressure sensor and a reference pressure sensor over a predetermined pressure range using a first calibration gas and determining a second transfer function; c) performing a first plurality of flow rate measurements in a predetermined flow rate range with a first metrology system and a reference metrology system, wherein the first metrology system and the reference metrology system use a first orifice size and the first calibration gas; and d) scaling temperature and pressure using the first transfer function and the second transfer function, respectively, and determining a corresponding transfer function for the first calibration gas based on the first plurality of flow rate measurements.

Abstract: A liquid chromatograph is presented which enables automatic resolution of a liquid sending failure when the liquid sending failure caused by a liquid sending pump occurs, and execution of a new analysis with good reproducibility after the liquid sending failure is resolved. The liquid sending failure can be automatically resolved by a purging operation. A sample remaining in the analysis flow path is washed away by a non-injection analysis after the liquid sending failure is resolved, and a new analysis can be executed with good reproducibility.

Abstract: In a method for operating a machine tool, a machine-specific flow resistance and a respective tool-specific flow resistance are ascertained for various tools. Tool-specific regulator parameters for regulating a pump of a coolant lubricant device are computed on the basis of the machine-specific flow resistance and the tool-specific flow resistance of the tool chucked in a tool spindle. Subsequently, the machine tool is operated using the tool-specific regulator parameters. In this way, a rapid and exact feed of coolant lubricant to the machining point of the respective chucked tool is enabled in a simple and flexible manner.

Abstract: System for precision irrigation is disclosed, the system comprises a main line. A plurality of sub main lines, wherein the plurality of sub main lines are configured to receive fluid from the main line. Further the system comprises a plurality of emitters lines emerging from at least one of the plurality of the sub main lines; wherein each emitter lines from the plurality lines has a length of at least 150 ft. A plurality of valves, wherein each valve is configured to connect at least one emitter line, from the plurality of emitter lines, with the at least one sub main line, from the plurality of sub main lines. The system further comprises a drone configured to communicably connect with the plurality of valves, wherein the drone is configured to receive a set of pre-defined instructions from a remote server and control the plurality of valves based on the instructions.

Abstract: Systems and methods for cooling a computer environment are disclosed. In at least one embodiment, one or more neural networks can be used to adjust one or more flow control valves, of a liquid cooling system for a data center, to control a variation in liquid flow rate across the data center.

Abstract: An agricultural machine applies liquid material to a field. Valve control signals control valves to apply the liquid material. Row pressure on the agricultural machine is sensed to identify when the valve is opened to apply the liquid material. The valve control signals are generated, based on the row pressure, to control the valves to apply the liquid material at a desired location in the field, relative to plant locations in the field.

Abstract: Variable airflow energy efficient HVAC systems can be used to provide for a three duct air supply, a multi-zone air supply, and a two duct air supply. The systems include an air handling unit that defines a cooling circuit portion and an independent heating/bypass circuit portion. The two circuit portions may each have variable air dampers for admitting variable amounts of ambient and return air, and/or the cooling circuit portion and the heating/bypass circuit portion may each have an active cooling element. Corresponding methods are also disclosed.

Abstract: A system for collecting water may include a base and a first arm connected to the base. The first arm may have a first base portion connected to the base and a first extension portion opposite the first base portion. The system may further include a grid extended between the base and the first extension portion. The grid may include a set of hydrophilic fibers extending substantially parallel to the base and a set of hydrophobic fibers intersecting with the hydrophilic fibers.

Abstract: An insulin patch control method and a device therefor are provided. An insulin patch control method and a device therefor are provided. The insulin patch control method according to one embodiment of the present invention comprises the steps of: obtaining, from an insulin patch, blood glucose information measured by a blood glucose sensor; inputting the obtained blood glucose information into a first neural network; estimating a pump parameter of the insulin patch on the basis of output data of the first neural network; and simulating the insulin patch by inputting the blood sugar information and the pump parameter into a second neural network.

Abstract: Fluid supply, monitoring and control system from LPG supply vehicles to tank trucks, the vehicle has a LPG liquid level gauger, an output line over which it is located in a fluid way a solenoid valve which allows or cuts the LPG flow besides of a flowmeter which measures the amount that flows through the said output line, a fluid coupled hose to the said output line with a connector which allows to safely couple to a stationary tank; the system also includes the use of a mobile computer device, a central that has at least one desktop computer device connected to a WIFI data network of mobile phone data network with which it communicates with the mobile device.

Abstract: In general, the disclosure describes techniques for identifying sequences of user actions from event data and logs of user actions for at least one user of a computing system. In one example, a system includes a sequence mining unit that processes event data and logs of user actions for at least one user of a computing system to obtain a set of one or more candidate action sequences each comprising a sequence of one or more user actions. A sequence filtering unit of the system applies, to the set of one or more candidate action sequences, one or more filters informed by a model of user actions for an application domain to obtain a set of one or more filtered action sequences to improve a quality of action sequences identified by the system. An output device of the system outputs an indication of the set of one or more filtered action sequences usable for generating at least one automated workflow or information usable for improving a workflow.

Abstract: A wireless actuator assembly for use in a building control system includes an actuated component such as a damper or a valve and an actuator that is configured to move the actuated component between a first position and a second position. The assembly includes a short range wireless communication module having a nominal communication range of less than 60 feet and an actuator controller that is operably coupled to the actuator and the short range wireless communication module. The actuator controller may be configured to receive one or more actuator commands from a portable handheld device via the short range wireless communication module and to send information to the portable handheld device via the short range wireless communication module.

Abstract: A system and method for pumping fluid. The system includes a sequence of two or more positive-displacement sub-systems each having a respective one-way inlet. A respective one-way flow path links each adjacent two of the sub-systems. A one-way outlet from a last of the sub-systems is provided. The system is capable of a mode of operation in which at least some of the sub-systems are substantially in phase with respect to each other to cause the system to draw fluid from more than one of the one-way inlets; and another other mode of operation in which at least some of the sub-systems are substantially in antiphase with respect to each other to increment a pressure of the fluid as the fluid moves along the sequence.

Abstract: Methods, devices, and assemblies for controlling pressure in a supply grid are provided. The supply grid is suitable for supplying fluid to loads. The supply grid has first sensors for measuring the flow and/or the pressure of the fluid at first locations in the supply grid and a pump for pumping the fluid or a valve for controlling the flow of the fluid. The method includes: measuring the flow and/or pressure of the fluid at the first locations in the supply grid by the first sensors; predicting the pressure at the second location in the supply grid using a self-learning system based on the measured flows or pressures, wherein the self-learning system is trained to predict the pressure at a specified location in the supply grid; and actuating the pump or the valve at least also based on the pressure predicted by the trained system at the second location.

Abstract: A fan controller for a ceiling fan is provided. The fan controller includes one or more switching devices configured to selectively couple the ceiling fan to a power source. The fan controller includes a first capacitor having a first capacitance and a second capacitor having a second capacitance that is larger than the first capacitance. The fan controller includes a power meter circuit and one or more control devices. The one or more control devices are configured to obtain, via the power meter circuit, data indicative of electrical power a fan motor of the ceiling fan draws from the power source. The one or more control devices are configured determine a size of the fan motor based on the data. The one or more control devices are configured to select the first capacitor or the second capacitor as a selected capacitor based on the determined size of the fan motor.

Abstract: An aerosol-generating device for heating an aerosol-forming substrate is provided, the aerosol-generating device including: a heating element configured to heat the aerosol-forming substrate when the aerosol-forming substrate is received by the aerosol-generating device, the heating element including a plurality of metallic nanoparticles configured to receive light and to generate heat by surface plasmon resonance.

Abstract: A method of controlling a device includes: obtaining information related to a body surface temperature of a person by detecting the body surface temperature of the person by a thermal camera, estimating a deep body temperature of the person on the basis of the information related to the body surface temperature of the person, detecting the person's condition on the basis of the deep body temperature of the person, and controlling an operation of the device according to the detected person's condition.

Abstract: A method for operating a pump of a delivery unit, in particular of a fluid supply system, having a pump chamber and an actively controllable inlet valve and an actively controllable outlet valve for the pump chamber, wherein, for the delivery of a fluid, a pressure (p), which is to be provided by the pump, of the fluid for delivery is controlled in closed-loop fashion on the basis of a manipulated variable (V), and wherein, within one full cycle (Z) of the pump (200), at least one of inlet valve (211) and outlet valve (212) is activated only if fluid is to be delivered, and is not activated if no fluid is to be delivered, and to a fluid supply system.

Abstract: Disclosed herein are cell processing systems, devices, and methods thereof. A system for cell processing may comprise a plurality of instruments each independently configured to perform one or more cell processing operations upon a cartridge, and a robot capable of moving the cartridge between each of the plurality of instruments.

Abstract: A fluid control device 10 comprises a valve device V2 including actuators 22 and 24 for opening and closing a flow path and adjusting a flow rate of a fluid flowing through the flow path, a pressure sensor PT provided upstream of the valve device V2, and a control circuit 12 connected to the valve device V2 and the pressure sensor PT, and the control circuit 12 controls an operation of the actuator based on a pressure measured by the pressure sensor PT and a reference pressure drop curve, while the upstream side of the fluid control device is closed and the valve device is opened using the actuators.

Abstract: Systems and methods for demand-based water distribution and management are disclosed. The system may determine a first price for each water distributor of a plurality of water distributors based on a plurality of demand factors. The system may transmit a plurality of water distributor locations to a first customer device, each location associated with a respective water distributor. The system may receive a selection of a first water distributor location from the first customer device and, in response, transmit directions to the first water distributor location to the first customer device. In response to the first customer device being authenticated by a first water-distribution device associated with the first water distributor, the system may transmit a signal to the first water-distribution device to transition to an unlocked state to allow the first customer to make a first purchase of water at a first price.

Abstract: The present disclosure discloses a method for processing a report point data, a handwriting reading device and a computer storage medium. The method for processing the report point data includes: transmitting report point data associated with received handwriting to a display controller by a System on Chip; looking up a LUT table and acquiring a first waveform of driving an ink screen based on the report point data by the display controller; and driving the ink screen to display the handwriting using the first waveform by the display controller.

Abstract: An emergency vehicle throttle management system includes a system controller having a main body, a processor, a memory, a multiplex connectivity component, a powertrain connectivity component, and a life safety connectivity component. The life safety connectivity component functioning to communicate directly with one of the life safety systems onboard the emergency vehicle. The powertrain connection component functioning to communicate with the powertrain components of the emergency vehicle which are mechanically coupled to the life safety system. The system controller including functionality for transmitting a powertrain resource request to the powertrain of the emergency vehicle in response to a throttle adjustment request received from the life safety system or a command from the throttle pedal of the vehicle. A throttle rule management unit evaluates error notifications received from the multiplex system, and selectively instructs the throttle source circuit to generate powertrain resource requests.

Abstract: A method of determining a health status of a mixing system may comprise establishing a flow loop via a pump, a flow control valve, and a flow rate sensor. The method may also include performing a diagnostic test that includes positioning the flow control valve in a first position, operating the pump to communicate a fluid via the flow loop at a first speed, measuring a first periodic dataset while the fluid is communicated via the flow loop, and recording the first periodic dataset. The method may also include comparing a result of the diagnostic test to an operational indicator set, determining the health status based upon the comparison of the result of the diagnostic test and the operational indicator set, and outputting, by the unit controller, indicia of the health status of the mixing system via the input output device.

Abstract: By implementing a monitoring system to a fluid meter set, the meter set can be monitored for abnormalities including fluid leaks or other system failures as well as gas blend or gas density. A monitoring system that uses sensors such as vibration sensors can detect fluid leaks or other system failures based on abnormal conditions such as vibrations of the meter set. Sensors may be positioned at various locations along the meter set where leakage of fluids or other system failures may be possible. Sensory information detected by sensors are communicated to processing or control unit which can trigger an alarm signaling unit alerting of a potential fluid leak. Such a system of monitoring the integrity of a fluid meter set can help to quickly identify and respond to a fluid leak without necessarily relying on visual or olfactory cues associated with the fluid being leaked.

Abstract: A large manipulator for concrete pumps a distributor boom that includes an articulated boom mounted on the boom pedestal and formed by multiple articulating boom arms with multiple joints for pivoting the boom arms with respect to the boom pedestal or an adjacent boom arm. A control device controls the movement of the articulated boom with the aid of drive unit actuating elements associated with the articulated joints. A device determines the vertical speed v? and/or horizontal speed v? of a location on at least one boom arm in a coordinate system referenced to the frame. A device is also provided for determining the articulating angles of the joints.

Abstract: The present invention provides a method for analyzing, monitoring, optimizing and/or comparing energy used for producing a unit of mass or volume of compressed gas (Specific Energy Consumption) in relation to a common output flow in a multiple compressor system, said method comprising: —collecting measured data of common output flow and energy/power use and calculating the specific energy consumption in the multiple compressor system, —identifying which data points of measured specific energy consumption that affiliate to a certain compressor or compressor combination in the multiple compressor system and/or operating mode(s) of the multiple compressor system; and —plotting the data points of measured specific energy consumption that affiliate to a certain compressor or compressor combination in the multiple compressor system and/or operating mode of the multiple compressor system and marking affiliation of said data points to the certain compressor or compressor combination and/or operating mode.

Abstract: Various embodiments of the teachings herein include a method for operating a valve comprising: determining a nonlinear characteristic curve function indicating a required relationship between a valve opening position and flow of a fluid; storing the function in an ECU; and using the function to set the valve opening position with a control signal indicating a target flow. The function is calculated automatically using a parameter value, with an analytic function, or by interpolation with specified supporting values by a user. The function comprises an inverse function based on a characteristic curve for a heat exchanger and a target function. The curve for the heat exchanger indicates a relationship between a heating power or a cooling power and the flow of a fluid. The target function indicates a relationship between the heating power or the cooling power of the heat exchanger based on the valve opening position.

Abstract: A transmission apparatus includes a transmission unit that transmits an operation state of a radiation imaging system to a user and a hardware processor that controls a state of the transmission unit, and the hardware processor controls the state of the transmission unit such that the state of the transmission unit is a state based on that at a time of the imaging of the exposure image between the first exposure and the second exposure when imaging the exposure image in the radiation imaging system.

Abstract: A cooling system includes: a local cooler that is positioned near a heat source and evaporates a liquid-phase refrigerant by receiving heat from the heat source; a turbo compressor that compresses a gas-phase refrigerant that absorbed the heat in the local cooler; an outdoor unit that condenses the gas-phase refrigerant supplied from the turbo compressor by heat dissipation; and an expansion valve that depressurizes the refrigerant supplied from the outdoor unit and sends the refrigerant to the local cooler. The refrigerant is a low-pressure refrigerant having a condensing pressure lower than a predetermined value.

Abstract: A convenient, water-saving and labor-saving FROG irrigation controller and system are provided, which determine the appropriate water budget and schedule for the property's landscaping based on evapotranspiration data for the geographic area, any regulation data, and property-specific data, with consideration given to reduction in watering days, increase in soil watering depth, and day of year. Once set, the FROG controller provides incremental adjustments over the course of the year; the homeowner no longer needs to re-set the watering program seasonally to automatically comply with local mandated and voluntary watering restrictions. One aspect provides a web-based wizard that is used to determine a customized water budget/schedule which is input into the FROG controller. Another aspect provides an integration of a network of FROG controllers with a central command unit.

Abstract: An integrated actuator coil and decoder module for use in decoder-based irrigation control systems, and related methods of manufacture and installation, are provided herein. In one implementation, an irrigation control device comprises a body, decoder circuitry located within the body, a coil located within the body and coupled to the decoder circuitry, the coil adapted to develop an electromagnetic flux sufficient to cause actuation of a device controlling irrigation equipment in response to signaling from the decoder circuitry. Also included is an electrical connection coupled to the decoder circuitry and adapted to couple to a control wire path of a decoder-based irrigation control system. The decoder circuitry and the coil are integrated into a single device.

Abstract: A hydraulic fracturing system includes a plurality of pumps positioned at a wellsite and configured to pressurize a fracturing fluid, a distribution system fluidly coupled to receive and consolidate fracturing fluid from the plurality of pumps for injection into a wellhead. The hydraulic fracturing system further includes a control system, which includes a plurality of sensing devices configured to measure one or more parameters of the plurality of pumps and the distribution system, one or more processing device configured to receive and analyze the one or more parameters measured by the plurality of sensing devices and generate control instructions based at least in part on the one or more parameters, and one or more control device configured 110 to receive the control instructions and control one or more aspects of the plurality of pumps or the distribution system based on the control instructions.

Abstract: Disclosed are a method and apparatus of automatic optical inspection using scanning holography. The apparatus for automatic optical inspection using scanning holography includes: a hologram capturer that takes a hologram of an object existing on an objective plate using a scanning hologram camera; a depth position/rotation angle extractor that extracts a depth position and a rotation angle about an objective surface of the objective plate on the basis of the hologram or the detected monitoring-light; a rotated coordinate system generator that generates a rotated coordinate system corresponding to the objective surface using the depth position and the rotation angle; and a hologram restorer that obtains an image of the object by restoring the hologram in a plane formed in a depth direction of the rotated coordinate system.

Abstract: Systems and methods for managing airflow for cooling computing devices in a data center in normal and cold environments are disclosed. Computing devices are positioned on racks, and an air barrier may be connected to the racks and have openings configured to permit air to be drawn through the computing devices by cooling fans. In a first mode, cool air may be drawn in from a cold aisle, and heated air may be exhausted into a hot aisle. Temperature sensors may periodically measure temperatures for the cool air being drawn into the computing devices. A controller may select a subset of the computing devices for air flow reversal in response to the measured temperatures being below a predetermined threshold. Patterns that may be time-varying and temperature-varying may be used to select the computing devices for air flow reversal and to adjust the fan speed of the computing devices.