Abstract:
This invention relates to a method and apparatus for determining the relative position between the point of impingement of an electron beam on a work surface and the seam between parts to be welded. The seam is scanned by oscillating a low power electron beam along a path transverse to the scan. The variation in secondary electrons generated as the beam traverses the seam is detected and amplified. The amplified signal is then acted upon by an electronic converter which converts the wave form by instantaneously taking the Nth root at each point of the curve representing the wave form of the amplified secondary electron current wave form so as to improve the resolution of the signal and make possible an improved definition at the point of impingement of the beam with respect to the seam.
Abstract:
A compact modular multifunctional inhalation device including a housing having an inlet port and an outlet port; a removable cartridge module adapted to seat within the housing, the cartridge including: a tray within the cartridge for holding a solid inhalant, a heating element mounted within the cartridge above and through the tray for heating the inhalant; and a removable modular electronic circuit adapted to seat within the housing to provide electrical current to the heating element. The heating element is a coil mounted within a chamber in thermal proximity to the solid inhalant. A quartz rod is mounted within the coil. A plunger is mounted within the cartridge to translate therein and compact the solid inhalant. In an alternative embodiment, dual channels and outlet ports are mounted in communication with an inlet port. In another embodiment, the cartridge is a split chamber cartridge with a split plunger mounted therein. Yet another embodiment features a measurement glass cover gauge mounted on the cartridge.
Abstract:
An electrical connectors housing for receiving a pair of mated electrical connectors designed to provide easy connection and prevent inadvertent disconnection of electrical connectors, comprises a male electrical connector housing member; a female electrical connector housing member configured to receive the male electrical connector housing member; and cam-lock couplings to lock together female and male electrical connector housing members.
Abstract:
In one embodiment, a method includes iteratively waiting for a time interval; sending a keep-alive message from a first computing device to a second computing device; and incrementing a current value of the time interval when the first computing device receives from the second computing device a response to a current keep-alive message sent during the current iteration, until the first computing device does not receive from the second computing device any responses to the current keep-alive message sent during the current iteration; and setting the current value of the time interval to a previous value of the time interval from an immediately-previous iteration.
Abstract:
A radio frequency (RF) excited laser assembly includes a pair of opposed electrodes defining an inter-electrode gap and a conductive termination bridge in electrical contact with both electrodes. The termination bridge mechanically supports and positions the electrodes relative to each other and provides a termination impedance for an RF voltage applied to the electrodes. A conical spiral inductor includes one or more metals windings, and one or more concentric terminals, such that the conical spiral inductor defines an inter-winding spacing sufficient to mitigate ionization of a gas medium between windings. A radio frequency (RF) feed-through assembly configured to apply an RF voltage to a pair of opposing electrodes such that a conductor is isolated from a metal sleeve position around the conductor by ion sheath discharge barrier.
Abstract:
A process for recovering ethylene is disclosed, the process including: recovering a ethylene-containing stream comprising methane, ethylene, and nitrogen oxides from at least one of an ethylene production process and an ethylene recovery process; separating the ethylene-containing stream via extractive distillation using at least one C2+ hydrocarbon absorbent to produce an overheads fraction comprising methane and nitrogen oxides and a bottoms fraction comprising the at least one C2+ hydrocarbon absorbent and ethylene; wherein the separating comprises operating the extractive distillation at temperatures and pressures sufficient to prevent any substantial conversion of nitrogen oxides to N2O3.
Abstract:
A process for recovering ethylene is disclosed, the process including: recovering a ethylene-containing stream comprising methane, ethylene, and nitrogen oxides from at least one of an ethylene production process and an ethylene recovery process; separating the ethylene-containing stream via extractive distillation using at least one C2+ hydrocarbon absorbent to produce an overheads fraction comprising methane and nitrogen oxides and a bottoms fraction comprising the at least one C2+ hydrocarbon absorbent and ethylene; wherein the separating comprises operating the extractive distillation at temperatures and pressures sufficient to prevent any substantial conversion of nitrogen oxides to N2O3.
Abstract:
The application relates to a pestivirus, designated PMC virus, that is associated with porcine myocarditis syndrome, and the gene and protein sequences derived therefrom. The application further relates to detection methods, vaccine therapeutics, and diagnostic methods using the PMC virus or gene/protein sequences derived therefrom.
Abstract:
A method of automatic drilling of a well with coil tubing or drill pipe tubing utilizes AC motors coupled to variable frequency drives controlled by a programmable logic controller. For example, a coil tube injector is supported in a mast for injecting coil tube from a reel and into a wellbore for drilling the wellbore. The AC motors for the injector are driven for controlling a rate of injection of coil tube by the injector for maintaining at least one drilling parameter such as weight-on-bit, differential mud pressure or rate of penetration. The AC motor for the reel is also controlled for driving the reel and maintaining a relative rate of coil tube supplied from the reel to the injector. Drawworks and a top drive supported by the draworks can also be equipped with AC motors and variable frequency drives for controlling a drilling rate for maintaining at least one of the drilling parameters.
Abstract:
A system and methods for a novel user interface of a touch sensitive screen for pocket device. The user interface contains display items and action tabs. Display items are configured to be draggable if being dragged at substantially horizontal direction; display items are configured to be scrollable if being dragged at substantially vertical direction. Dragging and releasing a draggable item to an action tab causes a specified action or a sequence of actions being applied to the item.