Abstract: A method for suppressing a speed fluctuation of a permanent magnet synchronous motor is provided in the present disclosure, including: obtaining a target speed ?_ref, a feedback speed, a fluctuation speed ??, a q-axis inductance Lq and a permanent magnet flux linkage ?f of the permanent magnet synchronous motor; performing a PI adjusting on ?? to obtain a q-axis reference current Iq_ref, and obtaining a q-axis target voltage U*q according to Iq_ref, ?_ref, ?? and ?f; performing a PI control on a q-axis actual voltage according to U*q to obtain a q-axis compensation current Iq_add; obtaining a d-axis target voltage U*d according to Iq_ref, Iq_add, ?_ref, ?? and Lq; performing a PI control on a d-axis actual voltage according to U*d to obtain a d-axis compensation current Id_add; superposing Iq_add and Iq_ref to perform a feedforward compensation on a q-axis current and superposing Id_add and the d-axis reference current to perform a feedforward compensation on a d-axis current.

Abstract: A multi-function cup having a detachable cup mouth includes a cup body having a cup mouth. The cup mouth is provided with a sealing cover device. The sealing cover device includes a cup cover, an engaging hoop, an engaging ring, and a buckle. The engaging hoop is attached to an inner wall of the engaging ring. The engaging ring has a notch. The buckle is connected with the engaging ring. Two sides of the buckle are connected with the engaging ring at two sides of the notch. The cup mouth is provided with a flange extending upward. The cup cover is mated with the flange. The buckle is buckled with the engaging ring to reduce the engaging ring for the engaging hoop to fasten the flange of the cup mouth. Because the cup is made of silicone, it is easy and convenient to place articles into the multi-function cup.

Abstract: A control circuit for a switched-mode power supply having an input side (101) connectable to an electrical power source and an output side (102) connectable to a load.

Abstract: An axially extending outer case for a gas turbine engine comprises an arcuate case wall, an opening, a boss and contouring. The arcuate case wall has an inner surface and an outer surface. The opening extends through the arcuate case wall. The boss extends radially from the outer surface of arcuate case wall and surrounds the opening. The contouring surrounds the opening along the inner surface of the arcuate case wall within the boss.

Abstract: A power factor corrector raises power factor at low loads or high mains voltages by modifying the switch timing or the current received by the power converter. It achieves this by increasing the switch-on time of a control switch during the falling time so that the majority of the switch-on time during a mains period occurs during the falling time, to thereby control the current received by the converter to compensate for current received by the intermediate filter. Some embodiments may employ a feedback system to produce one or more error signals that modify the control signal used to control the operation of the converter. Various embodiments may also include additional stages that limit the compensation range of the error signal.

Abstract: Disclosed in the present invention is an antibody specifically binding to GLP-1R and a fusion protein thereof with GLP-1. The fusion proteins can effectively bind to a human GLP-1R receptor and activate a receptor signaling pathway, thus are useful for treating diabetes, excessive weight, obesity and related disorders thereof.

Abstract: A tape measure including a housing arranged to enclose an internal cavity, where the housing defines a front wall. A port is formed in the housing and spaced a non-zero distance from the front wall. A measuring tape is at least partially disposed within the internal cavity of the housing and extends through the port. The measuring tape is rotatably coupled to the housing. A finger guard assembly is positioned adjacent the front wall, such that the finger guard assembly cooperates with the port to define a space therebetween. The measuring tape passes through the space outside of the housing to facilitate the control of the retraction and extension of the measuring tape through contact within the space.

Abstract: A hand tool includes a first jaw, a first handle fixed to the first jaw, a second jaw, and a second handle pivotally coupled to the second jaw, a link member, and an adjustment member. The adjustment member is operable to axially move a first end of the link member to vary a distance between the first and second jaws. The adjustment member includes an engagement surface engageable with the first end of the link member, a shank in threaded engagement with a bore in the first handle, and a flange extending from the shank opposite the engagement portion. The flange includes a first side, a second side opposite the first side, and an elongate opening extending through the first and second sides.

Abstract: A compression device includes an air cylinder (31); an upper bearing (4) and a lower bearing (5); a piston (71) which defines a working space; a first slide vane (81) and a second slide vane (82) which separate the working space into a first and a second working chamber; a first air suction port (101) and a second air suction port (102) both of which are in communication with the working space; and a first air discharge port (91) and a second air discharge port (92) both of which are in communication with the working space. The first and the second air suction port satisfy the following condition: 0.25?(V1/S1)*(S2/V2)?4, where V1 and V2 are respectively the maximum volume of the first and the second working chamber, and S1 and S2 are respectively the opening area of the first and the second air suction port.

Abstract: The present disclosure provides a data transmission method and a data transmission device. The data transmission method includes: receiving data sent by an application layer via a Transmission Control Protocol (TCP) interface; performing a protocol conversion when an acceleration mode is started, wherein the protocol conversion refers to converting TCP to a preset User Datagram Protocol (UDP); and sending the data in a transmission layer by using the preset UDP. The data transmission method may improve a transmission speed under a mobile network scene, and reduce a time delay of data transmission, thus enhancing a user experience.

Abstract: A fixing mechanism which is capable of assembling an expansion card module includes a base, a latch and a resilient component. The expansion card module slidably inserts into the base. The latch pivots to an accommodating portion of the base to switch between a first position and a second position. The latch includes a pressing portion and a pushing portion connected with each other. The pressing portion presses a side of the expansion card module since the latch is switched to the first position. The pushing portion pushes an opposite side of the expansion card module since the latch is switched to the second position, so as to upwardly move the expansion card module relative to the base. The resilient component is located inside the accommodating portion to actuate the latch and drives the latch to stay at the second position.

Abstract: A method for suppressing a speed fluctuation of a permanent magnet synchronous motor is provided in the present disclosure, including: obtaining a target speed ?—ref, a feedback speed, a fluctuation speed ??, a q-axis inductance Lq and a permanent magnet flux linkage ?f of the permanent magnet synchronous motor; performing a PI adjusting on ?? to obtain a q-axis reference current Iq_ref, and obtaining a q-axis target voltage U*q according to Iq_ref, ?—ref, ?? and ?f; performing a PI control on a q-axis actual voltage according to U*q to obtain a q-axis compensation current Iq_add; obtaining a d-axis target voltage U*d according to Iq_ref, Iq_add, ?—ref, ?? and Lq; performing a PI control on a d-axis actual voltage according to U*d to obtain a d-axis compensation current Id_add; superposing Iq_add and Iq_ref to perform a feedforward compensation on a q-axis current and superposing Id_add and the d-axis reference current to perform a feedforward compensation on a d-axis current.

Abstract: An electrical connector includes: a shielding shell; an insulative housing received in the shielding shell, the insulative housing having two rows of mating ports in a vertical direction and a receiving slot between the two rows of mating ports; a contact module mounted in the insulative housing, the contact modules comprising an inner circuit board and a plurality of mating contacts mounted on an upper surface and a lower surface of the inner circuit board, the inner circuit board comprising a conductive area at a front end thereof; and a conductive foam received in the receiving slot and compressed between the conductive area of the inner circuit board and the shielding shell.

Abstract: A turbine engine includes a frame assembly including an outer cavity and an inner cavity with the outer cavity including at least one opening configured and adapted to communicate cooling air to the turbine case. A baffle within the outer cavity includes a plurality of openings for directing cooling airflow into the outer cavity for preventing impingement on a radially inner wall of the outer cavity for maintaining a desired temperature of the cooling air within the outer cavity.

Abstract: A hand tool includes a first jaw, a first handle fixed to the first jaw, a second jaw, and a second handle pivotally coupled to the second jaw, a link member, and an adjustment member. The adjustment member is operable to axially move a first end of the link member to vary a distance between the first and second jaws. The adjustment member includes an engagement surface engageable with the first end of the link member, a shank in threaded engagement with a bore in the first handle, and a flange extending from the shank opposite the engagement portion. The flange includes a first side, a second side opposite the first side, and an elongate opening extending through the first and second sides.

Abstract: A tape measure includes a housing arranged to substantially enclose an internal cavity, the housing defining a tape port, and a tape positioned partially within the housing, the tape including an end portion that extends through the tape port and out of the housing. A hook is coupled to the end portion and a finger guard assembly is coupled to the housing and spaced apart from the tape port. The end portion extends through an aperture in the finger guard assembly and is movable between a retracted position in which the hook abuts the finger guard assembly and an extended position in which the hook is spaced apart from the finger guard assembly.

Abstract: A rotatory compressor and a refrigerating cycle device are provided. The rotatory compressor includes a lubricating oil in an interior of a hermetically sealed housing, and an electric motor and a rotatory compressing mechanism disposed in the housing. An internal pressure of the housing is substantially equal to a suction pressure of the compressing mechanism. The compressing mechanism includes a first bearing and a second bearing at least one of which includes an exhaust muffler. A refrigerant of the exhaust muffler flows through the sliding vane chamber and is discharged from an exhaust pipe of the compressing mechanism.

Abstract: A hand tool includes a first jaw, a first handle fixed to the first jaw, a second jaw, and a second handle pivotally coupled to the second jaw, a link member, and an adjustment member. The adjustment member is operable to axially move a first end of the link member to vary a distance between the first and second jaws. The adjustment member includes an engagement surface engageable with the first end of the link member, a shank in threaded engagement with a bore in the first handle, and a flange extending from the shank opposite the engagement portion. The flange includes a substantially planar first side, a substantially planar second side opposite the first side, and an elongate opening extending through the first and second sides.

Abstract: A gas turbine engine includes a mid-turbine frame that includes an inner frame case. At least one spoke is connected to the inner frame case. At least one spoke includes a fluid passage that is in fluid communication with a channel on a radially inner end of the fluid passage. The channel is directed in a radially inward and circumferential direction. A cavity is located radially inward from the mid-turbine frame and is in fluid communication with the channel.

Abstract: A refrigerant filling rotary compressor includes a shell, a compressing mechanism, an injection tube and an injection valve assembly. The compressing mechanism includes a cylinder, a main bearing, an auxiliary bearing, a crank shaft, a piston and a sliding vane. An inner wall of the cylinder chamber of the cylinder is formed with a filling mouth, and the cylinder is provided with a filling channel with a filling hole.