摘要:
A filtration system includes an outer casing (210) that houses a plurality of elongated inner casings (220A–220F), which in turn house a plurality of filtration membranes. The outer casing, inner casing, and filtration membranes are disposed relative to one another to provide a three-flow channel system that provides additional feed fluid at one or more membrane couplings between membranes of the same inner casing. Ths arrangement defines a feed fluid flow path in which a feed fluid exiting from an upstream filter into a downstream filter is diluted by additional feed fluid.
摘要:
A filtration system includes an outer casing that houses a plurality of elongated inner casings, which in turn house a plurality of filters (membranes). The outer casing, inner casings, and filters are disposed relative to one another to provide a three-flow channel system that provides additional feed fluid at one or more of the membrane couplings between membranes of the same inner casing. In preferred systems and methods the feed fluid flow path comprises an annular space between the inner casings and the filters contained in such casings, and in more preferred embodiments the annular space is substantially continuous past multiple filters of the same inner casing. The inner casings may advantageously have openings that fluidly communicate with the lumen of the outer casing, thereby reducing the ratio of couplings relative to the number of filters (the coupling/filter ratio). In especially preferred embodiments the coupling/filter ratio ≦1:2, in more preferred embodiments the coupling/filter ratio ≦1:3, and in still more preferred embodiments the coupling/filter ratio ≦1:4.
摘要:
The present invention is a catheter actuation handle for deflecting a distal end of a tubular catheter body, the handle including an auto-locking mechanism. The handle comprises upper and lower grip portions, an actuator, and an auto-locking mechanism. The auto-locking mechanism is adapted to hold a deflected distal end of the catheter in place without input from the operator. When the distal end of the catheter is deflected from its zero position, it typically will seek a return to its zero position, and as a result exerts a force on the actuator. The auto-locking mechanism acts by providing a second force that resists this force from the distal end and holds the distal end in place. As a result, the operator does not need to maintain contact with the buttons to maintain the distal end in a set position once placed there by actuating the actuator.
摘要:
A golf club head cover comprises an enclosure formed by a pair of complementary cover sections connected to pivot about a manually actuated spring-biased clip member. The clip member normally biases the cover sections into a closed condition adapted to enclose a head of a golf club. The clip member includes a pair of handle elements projecting outward from the enclosure that are adapted to be gripped between the thumb and one or more fingers by a user and depressed towards each other to move the cover sections so they pivot and spread apart into an open condition. The user grips the handle elements with one hand and depresses them so the enclosure is in the open condition. While maintaining a grip on the handle elements to keep the enclosure in the open condition, the user with his or her other hand places the head of a golf club between the spread apart cover sections, or withdraws the head, as the case may be. When the head of a golf club is between the spread apart cover sections in the open condition, or is withdrawn, the user releases the grip on the handle elements so the cover sections come together automatically into the closed condition.
摘要:
Methods and apparatus for encoding and decoding information in broadcast or recorded segment signals are described. In certain embodiments, an audience monitoring system encodes identification information in the audio signal portion of a broadcast or recorded segment using spread spectrum encoding. A personal monitoring device receives an acoustically reproduced version of the broadcast or recorded signal via a microphone, decodes the identification information from the audio signal portion despite significant ambient noise, and stores this information, automatically providing a diary for the audience member which is later uploaded to a centralized facility. A separate monitoring device decodes additional information from the broadcast signal, which is matched with the audience diary information at the central facility. This monitor may simultaneously send data to the centralized facility using a dial-up telephone line, and receive data from the centralized facility through a signal encoded using a spread spectrum technique and modulated with a broadcast signal from a third-party.
摘要:
A system and method for mobile ground-to-air and air-to-ground communication network acceleration. The system and method can reduce the cost of airborne communication services by creating a faster connection and thus increasing data throughput. In one embodiment, the communication network acceleration system and method provide as much as a four-fold increase over standard high-speed data rates. This increase is made possible in part through the integration, implementation, and use of acceleration and compression technologies in the ground system that supports communications to and from an airborne terminal.
摘要:
A pumping unit system having vertical sampson post, a walking beam pivotally supported at the upper end of the sampson post and a horsehead affixed at a forward end thereof that supports a reciprocated sucker rod string, including a gear reducer mounted at selectable positions on the walking beam and having a horizontally extending drive shaft, a crank arm affixed to the drive shaft the spacing between a selectable length pitman rod having a first end secured to said crank arm and a second end having a pitman bearing that is selectably mountable to a plurality of pitman bearing locations and a prime mover connected to the gear reducer and wherein the characteristics of the pumping unit are determined by the selectable position of the gear reducer, the selectable length of the crank arm, the selectable length of the pitman rod, and the selectable pitman bearing location.
摘要:
Methods and systems for measuring and gathering data relating to publication usage by participants in publication readership studies. Some methods and systems employ portable monitors carried by participants of the studies along with publications fitted with various devices, such as piezoelectric transducers, RFID tags and others devices and circuits.
摘要:
The present invention features a unique carrying device for carrying a cartable item, wherein the carrying device is formed of a rigid structure and comprises means for engaging a first shoulder of a user, means for engaging a second shoulder of a user, means for connecting the means for engaging the first and second shoulders of a user together, means for adjusting the ergonomic configuration of the carrying device, means for releasably coupling or attaching the carrying device to a golf bag, and means for transitioning, upon elective actuation, functions to transition or convert the carrying device from a single-shoulder carrying arrangement or position to a dual-shoulder carrying arrangement or position.
摘要:
A lightweight electro-mechanical chest compression device. The device is provided with a motor, a brake, a drive spool, a control system, and a metal channel beam to brace the device and guide a compression belt. The belt is provided in a belt cartridge that attaches to the channel beam. In use, the belt is secured around the patient and to the drive spool. The motor tightens the belt by turning the drive spool. The electro-mechanical chest compression device weighs less than 30 pounds when fully assembled with its power source.