Abstract: A switching power converter is provided that communicates with a mobile device to receive a value of a load detection current. The switching power converter adjusts the cycling of a power switch until a constant current mode of operation is entered with a known output current driving the mobile device. The switching power converter subtracts the load current from the output current to measure a soft-short circuit current.

Abstract: A lubricant adheres to a magnetic recording medium via at least one of chemisorption or bonding, and contains a perfluorinated polyether attached to or terminated with a functional group that is phosphonic acid, silanol or carboxylic acid, and may be: R1—Rf—R1 where Rf is —CF2O(CF2CF2CF2CF2O)n—, —CF2O(CF2CF2CF2O)nCF2—, —CF2O[CF(CF3)CF2O]nCF2—, —CF2O(CF2CF2O)m(CF2O)nCF2—, —CF2O(CF2CF2O)nCF2—, n, m is from 1 to 100 and R1 is the functional group. A lubricant is formed from a multiple ether segments according to formula: Re1—Rb1-Ri-Rc-Ri-Rb2—Re2; where Rc includes perfluoroalkyl ether, Rb1 and Rb2 are, independently, a sidechain segment including a perfluoroalkyl ether, optional Ri independently is a divalent linking segment including a functional group including elements from periodic table Group 13-17, and of Re1 and Re2 are phosphonic acid, silanol or carboxylic acid.

Abstract: Provided is an accumulative sliding construction method of segmental track-changing for unequal-span structure, which divides the unequal-span structure into at least two sliding sections according to span variation, and a plurality of track segments corresponding to the spans of each sliding section. By providing sliders on the main truss/beam of each sliding section at positions corresponding to the track segments that each main truss/beam need to pass through, the sliding section smoothly passes through the sliding track segments to be in position; in addition, the main truss/beam of each sliding section is provided with temporary lengthening auxiliary structure or divided into an initial-mounted unit and rear-mounted units to allow the main truss/beam of each sliding section to pass through the track segments smoothly and to be in place.

Abstract: A construction apparatus and method for lifting structure integrally over obstacles in vertical direction to a position with different horizontal projection. The apparatus has two platform beams placed each other in parallel, two lifting beams laterally relative to the platform beams and a lifter equipped with the lifting beams. Push instrument kits are installed on the platform beams and the lifting beams respectively, and a plurality of sets of baffles installed on both sides of the platform beams to provide the push instrument kits with a counter-force when the push instrument kits work. When the structure encounters obstacles during the process of lifting the structure by two lifters, the posture of the structure can be altered by operating the push instrument kits and the lifters, such that the horizontal projection of the structure will be reduced and the structure can therefore be lifted over the obstacle in vertical direction.

Abstract: An apparatus for lifting and sliding a structure to be attached to a wall of a building, including a lifting platform extending outwardly from the building, and a synchronous lifting and sliding system which is arranged on the lifting platform. The lifting platform has two platform beams extending outwardly from the building, and a lifting beam placed on the platform beams. The synchronous lifting and sliding system has a hydraulic lifter arranged on the lifting beam, a hydraulic jack connected to the lifting beam, and a controller. A connecting rod is connected to one end of the hydraulic jack, and several installing holes are arranged at regular intervals on the connecting rod. The distance between the adjacent installing holes of the connecting rod matches a stroke of the hydraulic jack. An installing ear-plate is provided on the platform beam to connect with the connecting rod.

Abstract: The invention disclosed an apparatus for lifting and sliding a structure attached to the wall, comprising a lifting platform extending out over the building on the roof, and a synchronous lifting and sliding system which is arranged on the lifting platform; wherein the lifting platform comprises two platform beams extending out over the building, and a lifting beam placed on the platform beam; the synchronous lifting and sliding system comprises a hydraulic lifter arranged on the lifting beam, a hydraulic push instrument kit connected to the lifting beam, and a controller; A connecting rod is connected to one end of the hydraulic push instrument kit, and several installing holes are arranged at regular intervals on the connecting rod; The distance between the adjacent installing holes of the connecting rod matches with a stroke of the hydraulic push instrument kit; An installing ear-plate is provided on the platform beam to connect with the connecting rod.

Abstract: An apparatus for lifting and sliding a structure to be attached to a wall of a building, including a lifting platform extending outwardly from the building, and a synchronous lifting and sliding system which is arranged on the lifting platform. The lifting platform has two platform beams extending outwardly from the building, and a lifting beam placed on the platform beams. The synchronous lifting and sliding system has a hydraulic lifter arranged on the lifting beam, a hydraulic jack connected to the lifting beam, and a controller. A connecting rod is connected to one end of the hydraulic jack, and several installing holes are arranged at regular intervals on the connecting rod. The distance between the adjacent installing holes of the connecting rod matches a stroke of the hydraulic jack. An installing ear-plate is provided on the platform beam to connect with the connecting rod.

Abstract: The present invention disclosed a construction apparatus and method for lifting structure integrally over the obstacles in vertical direction to a position with different horizontal projection. The apparatus comprises two platform beams placed each other in parallel, two lifting beams laterally relative to the platform beams and a lifter equipped with the lifting beams. Push instrument kits are installed on the platform beams and the lifting beams respectively, and a plurality of sets of baffles installed on both sides of the platform beams to provide the push instrument kits with a counter-force when the push instrument kits work. When the structure encounters obstacles during the process of lifting the structure by two lifters, the posture of the structure can be altered by operating the push instrument kits and the lifters, such that the horizontal projection of the structure will be reduced and the structure can therefore be lifted over the obstacle in vertical direction.

Abstract: A construction apparatus and method for lifting structure integrally over obstacles in vertical direction to a position with different horizontal projection. The apparatus has two platform beams placed each other in parallel, two lifting beams laterally relative to the platform beams and a lifter equipped with the lifting beams. Push instrument kits are installed on the platform beams and the lifting beams respectively, and a plurality of sets of baffles installed on both sides of the platform beams to provide the push instrument kits with a counter-force when the push instrument kits work. When the structure encounters obstacles during the process of lifting the structure by two lifters, the posture of the structure can be altered by operating the push instrument kits and the lifters, such that the horizontal projection of the structure will be reduced and the structure can therefore be lifted over the obstacle in vertical direction.

Abstract: The present invention disclosed an apparatus and for lifting and sliding object over barrier in horizontal direction, comprising two lifting beams that placed on supporting structures and located above object to be lifted and a barrier, and a lifter installed on the lifting beam. A hydraulic push instrument kit is installed on a lifting beam to move the shoulder beam and the lifter. The lifter connects with the object through the steel strand and a triangle transfer connector having three fixed-holds. When the steel strand encounters a barrier in horizontal direction, setting another lifting apparatus on the part of lifting beams located on the other side of the barrier, connecting another lifting apparatus with the third fixed-hold of transfer connectors 4 by steel strands, and lifting the object until whole load of the object has been transferred onto the second lifter and the object can move to the desired position.

Abstract: The invention disclosed an apparatus for lifting and sliding a structure attached to the wall, comprising a lifting platform extending out over the building on the roof, and a synchronous lifting and sliding system which is arranged on the lifting platform; wherein the lifting platform comprises two platform beams extending out over the building, and a lifting beam placed on the platform beam; the synchronous lifting and sliding system comprises a hydraulic lifter arranged on the lifting beam, a hydraulic push instrument kit connected to the lifting beam, and a controller; A connecting rod is connected to one end of the hydraulic push instrument kit, and several installing holes are arranged at regular intervals on the connecting rod; The distance between the adjacent installing holes of the connecting rod matches with a stroke of the hydraulic push instrument kit; An installing ear-plate is provided on the platform beam to connect with the connecting rod.

Abstract: The present invention disclosed a construction apparatus and method for lifting structure integrally over the obstacles in vertical direction to a position with different horizontal projection. The apparatus comprises two platform beams placed each other in parallel, two lifting beams laterally relative to the platform beams and a lifter equipped with the lifting beams. Push instrument kits are installed on the platform beams and the lifting beams respectively, and a plurality of sets of baffles installed on both sides of the platform beams to provide the push instrument kits with a counter-force when the push instrument kits work. When the structure encounters obstacles during the process of lifting the structure by two lifters, the posture of the structure can be altered by operating the push instrument kits and the lifters, such that the horizontal projection of the structure will be reduced and the structure can therefore be lifted over the obstacle in vertical direction.

Abstract: The present invention disclosed an apparatus and for lifting and sliding object over barrier in horizontal direction, comprising two lifting beams that placed on supporting structures and located above object to be lifted and a barrier, and a lifter installed on the lifting beam. A hydraulic push instrument kit is installed on a lifting beam to move the shoulder beam and the lifter. The lifter connects with the object through the steel strand and a triangle transfer connector having three fixed-holds. When the steel strand encounters a barrier in horizontal direction, setting another lifting apparatus on the part of lifting beams located on the other side of the barrier, connecting another lifting apparatus with the third fixed-hold of transfer connectors 4 by steel strands, and lifting the object until whole load of the object has been transferred onto the second lifter and the object can move to the desired position.

Abstract: The present invention provides a method and apparatus for measurement and characterization of flying heads for use over disks that comprise non-rigid substrates and/or over disks that exhibit properties such as increased amounts of flutter and/or rotational run-out.