Abstract: The invention relates to a system, method and apparatus for processing natural gas in an LNG facility. A natural gas feed is introduced into a heavies removal unit. The heavies removal system includes a heavies removal column and a distillation column. The heavies removal column and the distillation column are connected via a purge/recovery line. One or more components of the natural gas feed is purged from the heavies removal column to the distillation column via the purge/recovery line to obtain a specified concentration or concentration range of heavy components feeding into the distillation column.

Abstract: An integrated circuit includes first to second transistors and a resistive device. The first transistor is coupled between a pad and a first voltage terminal that provides a first supply voltage. The second transistor is coupled in parallel with the first transistor. A breakdown voltage of the first transistor is different from a trigger voltage of the second transistor. The resistive device is coupled between the pad and a second voltage terminal that provides a second supply voltage higher than the first supply voltage, and operates with the second supply voltage in an electrostatic discharge(ESD) event when the first and second transistors discharge a ESD current between the pad and the first voltage terminal.

Abstract: A method is provided and includes the operation below: discharging electrostatic charges from a pad to a first voltage terminal through a first active region coupled to the pad and a second active region coupled between the first active region and the first voltage terminal, in which the first active region and the second active region are the same conductivity type and have different widths from each other, and the first active region and the second active region are included in a first transistor having a first breakdown voltage; and discharging the electrostatic charges through an ESD primary circuit having a first terminal coupled with the first active region and a second terminal coupled with the first voltage terminal. The ESD primary circuit has a trigger voltage lower than the first breakdown voltage.

Abstract: The utility model relates to an electric hovercraft for sports competitions. It mainly solves the technical problem of serious environmental pollution in the existing hovercraft for sports competitions. The technical scheme is: an electric hovercraft for sports competitions, comprising an air-cushion apron, a rudder, an elevator, a thrust cylinder, a thrust fan, a hull, a steering handle and a lift fan, wherein: it also includes two continuously variable electric motors, a motor Bracket, battery, controller, the motor bracket is arranged at the rear of the hull and in front of the thrust cylinder, the first continuously variable speed electric motor is mounted on the motor bracket, and the shaft of the first continuously variable speed electric motor is connected to the rotating shaft of thrust fan.

Abstract: The invention relates to a system, method and apparatus for removing heavies from natural gas. Natural gas and an external rich reflux gas feed are processed in a single column refluxed absorber. A bottoms stream is routed to a first heat exchanger and then to a stabilizer column where an overhead stream from the stabilizer column is routed through a condenser for partial separation into an overhead stream. A rich solvent may be introduced to the stabilizer column. The overhead stream is routed through a condenser for partial separation into a stabilizer reflux and a second overhead stream lights. The second overhead stream lights is routed to a heat exchanger and then routed to a partial condenser where the stream is separated into a heavies rich reflux stream, a distillate stream and heavies treated natural gas stream.

Abstract: The utility model relates to an electric hovercraft for sports competitions. It mainly solves the technical problem of serious environmental pollution in the existing hovercraft for sports competitions. The technical scheme is: an electric hovercraft for sports competitions, comprising an air-cushion apron, a rudder, an elevator, a thrust cylinder, a thrust fan, a hull, a steering handle and a lift fan, wherein: it also includes two continuously variable electric motors, a motor Bracket, battery, controller, the motor bracket is arranged at the rear of the hull and in front of the thrust cylinder, the first continuously variable speed electric motor is mounted on the motor bracket, and the shaft of the first continuously variable speed electric motor is connected to the rotating shaft of thrust fan.

Abstract: A device includes a voltage regulator circuit, a power switch circuit, and a control circuit. The voltage regulator circuit generates an output voltage at an output terminal. The power switch circuit is coupled to the voltage regulator circuit. The control circuit receives a first control signal and generates a second signal that includes a first portion gradually declining between a first time and a second time later than the first time. When the voltage regulator circuit is turned off and a logic state of the first control signal changes at the first time, the power switch circuit is turned on at the second time, in response to the second control signal, to adjust the output voltage.

Abstract: An integrated circuit includes a pull-up circuit, an electrostatic discharge (ESD) primary circuit, and a pull-down circuit. The pull-up circuit is coupled between a pad and a first voltage terminal. The ESD primary circuit includes a first terminal which is coupled to the pad and the pull-up circuit, and a second terminal coupled to a second voltage terminal different from the first voltage terminal. The pull-down circuit has a first terminal which is coupled to the pad, the ESD primary circuit and the pull-up circuit, and a second terminal coupled to the second voltage terminal. The pull-down circuit includes at least one first transistor of a first conductivity type having a first terminal coupled to the first terminal of the pull-down circuit. A breakdown voltage of the at least one first transistor is greater than a trigger voltage of the ESD primary circuit.

Abstract: An integrated circuit includes a control circuit, a first voltage generation circuit, and a second voltage generation circuit. The control circuit is coupled between a first voltage terminal and a first node, and generates an initiation voltage at the first node. The first voltage generation circuit and the second voltage generation circuit are coupled to a first capacitive unit at the first node and coupled to a second capacitive unit at a second node. The first voltage generation circuit generates, in response to the initiation voltage at the first node, a first control signal based on a first supply voltage to the second voltage generation circuit. The second voltage generation circuit generates, in response to the first control signal received from the first voltage generation circuit, a second control signal to the first node, based on a second supply voltage.

Abstract: The invention relates to a system, method and apparatus for removing heavies from natural gas. Natural gas and an external rich reflux gas feed are processed in a single column refluxed absorber. A bottoms stream is routed to a first heat exchanger and then to a stabilizer column where an overhead stream from the stabilizer column is routed through a condenser for partial separation into an overhead stream. A rich solvent may be introduced to the stabilizer column. The overhead stream is routed through a condenser for partial separation into a stabilizer reflux and a second overhead stream lights. The second overhead stream lights is routed to a heat exchanger and then routed to a partial condenser where the stream is separated into a heavies rich reflux stream, a distillate stream and heavies treated natural gas stream.

Abstract: A self-balancing board is provided, comprising a primary wheel assembly, a platform, at least one sensor, a controller, a first auxiliary wheel assembly, and a first brake element. The primary wheel assembly comprises a primary wheel and a motor driving the primary wheel. The platform is secured to the primary wheel assembly and has a foot deck. The at least one sensor senses the orientation of the platform. The controller receives data from the at least one sensor and controls the motor in response to the received data. The first auxiliary wheel assembly is secured to the platform distal the primary wheel assembly, and is elevated from contacting a flat surface upon which the primary wheel rests when the foot deck is parallel to the flat surface. The first brake element is manually movable relative to the first auxiliary wheel assembly to engage the first auxiliary wheel assembly to provide resistance to rotation of the first auxiliary wheel assembly.

Abstract: An integrated circuit includes a pull-up circuit, an electrostatic discharge (ESD) primary circuit, and a pull-down circuit. The pull-up circuit is coupled between a pad and a first voltage terminal. The ESD primary circuit includes a first terminal which is coupled to the pad and the pull-up circuit, and a second terminal coupled to a second voltage terminal different from the first voltage terminal. The pull-down circuit has a first terminal which is coupled to the pad, the ESD primary circuit and the pull-up circuit, and a second terminal coupled to the second voltage terminal. The pull-down circuit includes at least one first transistor of a first conductivity type having a first terminal coupled to the first terminal of the pull-down circuit. A breakdown voltage of the at least one first transistor is greater than a trigger voltage of the ESD primary circuit.

Abstract: Implementations described and claimed herein provide systems and methods for processing liquefied natural gas (LNG). In one implementation, a dry feed gas is received. The dry feed gas is chilled with clean vapor from a heavies removal column to form a chilled feed gas. The chilled feed gas is partially condensed into a vapor phase and a liquid phase. The liquid phase retains freezing components. The freezing components are extracted using a reflux stream in the heavies removal column. The freezing components are removed as a condensate. The vapor phase is compressed into a clean feed gas. The clean feed gas is free of the freezing components for downstream liquefaction.

Abstract: The invention relates to various nonlimiting embodiments that include methods, apparatuses or systems for processing natural gas comprising a heavies removal column processing natural gas and light oil reflux. The overhead stream goes to heavies treated natural gas storage. The heavies removal column reboiler bottoms stream product is input to a debutanizer column. The debutanizer column overhead lights are input to a flash drum where the bottoms is pumped through a heat exchanger as a light oil reflux input to the heavies removal column, while the debutanizer reboiler bottoms product is stored as stabilized condensate. Alternatively, debutanizer column overhead lights are sent to heavies treated gas storage and the bottoms stream product goes to a depentanizer column, the overhead lights are pumped through a heat exchanger as a light oil reflux input to the heavies removal column, while the depentanizer reboiler bottoms product is stabilized condensate.

Abstract: Disclosed herein are systems and processes for removing heavies during the liquefaction of a natural gas. The processes include dissolving the heavies in the natural gas by adding external natural gas liquid (NGL), followed by a staged removal of the natural gas liquid (NGL) and dissolved heavies.

Abstract: The invention relates to various nonlimiting embodiments that include methods, apparatuses or systems for processing natural gas comprising a heavies removal column processing natural gas and light oil reflux. The overhead stream goes to heavies treated natural gas storage. The heavies removal column reboiler bottoms stream product is input to a debutanizer column. The debutanizer column overhead lights are input to a flash drum where the bottoms is pumped through a heat exchanger as a light oil reflux input to the heavies removal column, while the debutanizer reboiler bottoms product is stored as stabilized condensate. Alternatively, debutanizer column overhead lights are sent to heavies treated gas storage and the bottoms stream product goes to a depentanizer column, the overhead lights are pumped through a heat exchanger as a light oil reflux input to the heavies removal column, while the depentanizer reboiler bottoms product is stabilized condensate.

Abstract: Implementations described and claimed herein provide systems and methods for processing liquefied natural gas (LNG). In one implementation, a feed gas is received and partially condensed into a two-phase stream by expanding the feed gas. A liquid containing fouling components is removed from the two-phase stream. A vapor generated from the two-phase stream is compressed into a compressed feed gas. The compressed feed gas is directed into a feed chiller heat exchanger. The compressed feed gas is free of the fouling components.

Abstract: A copper bar component for switching an input/output mode of an uninterruptible power supply (UPS), and a power system includes an enclosure of the UPS, at least one bracket and a plurality of copper bars. The plurality of copper bars are fastened to each of the at least one bracket, and the plurality of copper bars are connected to an input or output wiring terminal on the enclosure of the UPS. Each of the at least one bracket is made of an insulating material. The plurality of copper bars are arranged on each of the at least one bracket according to one input mode or output mode of the UPS, and the plurality of copper bars are arranged on the at least one bracket in a one-to-one correspondence to at least one of an input mode or an output mode of the UPS.

Abstract: A foot-deck-based vehicle includes a support structure having a longitudinal axis, a first foot-deck portion, and a second foot-deck portion. Each of the first foot-deck portion and the second foot-deck portion have a foot support surface. The foot support surfaces of the first and second foot-deck portions are positioned to support first and second feet of a rider respectively. The foot-deck-based vehicle further includes at least one wheel that is rotationally connected to the support structure for rotation about a lateral axis. The first and second foot-deck portions are movably connected at least indirectly to each other and are movable between a use position and a stowage position.

Abstract: An input surface system is provided. The input surface system includes a chassis, and an array of balls rotatably supported by the chassis. The array of balls define a foot surface. At least one sensor is positioned within the chassis to measure rotation of each of the array of balls about two axes.