Abstract: A single-ended output circulator includes a three-core optical fiber head having first, second, and third optical fiber cores; a walk-off crystal having a first surface facing towards the second end of the three-core optical fiber head tube and a second surface facing away from the second end of the three-core optical fiber head tube; a plurality of half-wave plates each having a first surface coupled to the second surface of the walk-off crystal and a second surface facing away from the second surface of the walk-off crystal; a collimating lens having a first end and a second end; a reflection mirror configured to reflect light beams from the collimating lens; an optical prism between the collimating lens and the reflection mirror and configured to transmit a light beam along a propagation direction according to a polarization direction of the light beam; and a polarization rotator.

Abstract: The present invention provides a micro speaker, including a frame with a containment space, and a magnetic circuit system and a vibration system contained in the containment space. The vibration system includes a first diaphragm, a circuit board, a skeleton, and a voice coil. The micro speaker further includes a welding plate structure and a balance component. The voice coil includes a lead wire electrically connected with the welding plate structure. By setting the balance component on the skeleton, the present invention can keep the weight balance at both ends of the skeleton, so as to ensure that the skeleton will not sway when the vibration system is working, so that the vibration of the skeleton is stable and the sound quality is improved.

Abstract: The present invention provides a speaker, including a frame with a containment space, a magnetic circuit system and a vibration system. The vibration system includes a vibration diaphragm. The diaphragm includes a dome and a suspension. The suspension includes a first fixed part, a suspension part, and a second fixed part extending away from the first fixed part from the outer edge of suspension part. The suspension part includes two short axle parts, two long axle parts, and a corner part connecting adjacent short axle parts and long axle parts. The vibration diaphragm includes a reinforcement assembly connected to the corner part and connected to the first fixed part and the second fixed part at both ends. By virtue of reinforcement assembly at the corner part of the suspension, the speaker can obtain better acoustic performance.

Abstract: A speaker includes a frame, a vibration system, and a magnetic circuit system. The vibration system and the magnetic circuit system are respectively disposed on the frame. The vibration system includes a sound film and a voice coil. The voice coil drives the sound film to vibrate and sound. The magnetic circuit system includes a lower clamping plate, a first magnetic steel, and a second magnetic steel. The first magnetic steel is disposed on the lower clamping plate. The annular second magnetic steel is disposed on the lower clamping plate and surrounds the first magnetic steel. The first magnetic steel and the second magnetic steel are disposed at intervals to form a first gap. The speaker has better performance.

Abstract: The present invention provides an acoustic device including a frame, a vibration system and a magnetic system. The vibration system includes a diaphragm, a voice coil assembly, and a support assembly. The support s assembly includes a flexible circuit board and a support membrane. The flexible circuit board includes a first fixing end secured to the frame, a second fixing end secured to the voice coil assembly, a connecting portion, and a soldering pad. The voice coil assembly includes a first voice coil and a second voice coil. The first voice coil includes a first leading wire. The first leading wire has a first extension part extending from a surface of the first voice coil, a second extension part bending and extending from the first extension part along an outer surface of the second voice coil, and a soldering part welding to the soldering pad.

Abstract: A speaker includes a frame, a vibration system, and a magnetic circuit system. The vibration system and the magnetic circuit system are respectively disposed on the frame. The vibration system includes a sound film, flexible circuit boards, a connecting rack, and a voice coil. The flexible circuit boards are disposed at intervals with the sound film. The connecting rack is connected with the sound film and the flexible circuit boards. The voice coil is fixed to the connecting rack. The voice coil includes a first voice coil and a second voice coil, and the second voice coil surrounds outside the first voice coil. The speaker of the present disclosure effectively solves the problem of supplying power to the first voice coil during the voice coil driving. The voice coil driving effectively improves the BL, provides a larger driving force, and improves sensitivity, so that performance of the speaker is better.

Abstract: The present invention provides an acoustic device including a frame, a vibration system and a magnetic circuit system. The vibration system includes a diaphragm, a voice coil, a voice coil holder connecting the diaphragm and the voice coil, and a support assembly connecting the frame and the voice coil holder. The voice coil holder comprises a first fixing portion extending toward a direction of the voice coil, a second fixing portion extending toward to the support assembly, and a first connecting portion connecting the first fixing portion and the second fixing portion. The first fixing portion is mounted to the voice coil, and the second fixing portion is mounted to the support assembly. The first connecting portion provides with a reinforcing rib protruding and extending from the first fixing portion.

Abstract: A coating process of a segmented paper pulp bottle blank includes: S1, placing a film raw material into a bottle blank to be coated; S2, folding an upper edge of the film raw material to fix the upper edge onto a mouth of the bottom blank; S3, placing the bottle blank fixed with the film raw material into a coating mold; S4, placing a hot-air blowing pipe into the bottle blank; and S5, sucking air by the coating mold to absorb the bottle blank onto inner cavity walls of the coating mold, blowing in hot air by the hot-air blowing pipe to make the film raw materia1, after being heated and softened, to be expanded and adhered to the inner wall of the bottle blank, and finally opening the coating mold to take out a finished product. Moreover, a production process of a segmented paper pulp bottle is provided.

Abstract: A transfer device includes a wet blank transfer mold internally provided with an airtight air chamber, a front face with a recessed matching cavity configured to be sheathed on the outside of a pulp wet blank container and is recessed towards the airtight air chamber. The recessed matching cavity includes several small communicating holes provided respectively in an inner wall of each recessed matching cavity and at the bottom of the recessed matching cavity for communication between the recessed matching cavity and the airtight air chamber. A moving frame parallel to the wet blank transfer mold with evenly spaced vacuum cups, is connected to a back face of the wet blank transfer mold via a guiding mechanism. A driver connected between the back face of the wet blank transfer mold and the moving frame to drive the moving frame to move relative to the wet blank transfer mold.

Abstract: Embodiments of the present disclosure disclose a data transmission method and a communications device. The method in the embodiments of the present disclosure includes: obtaining, by a first communications device, a transmission mode instruction, where the transmission mode instruction is used to instruct to use a frequency-domain repetition mode to transmit data, and the frequency-domain repetition mode means that same data is repeatedly transmitted on different frequency-domain resources; determining, by the first communications device, the frequency-domain repetition mode based on the transmission mode instruction; and performing, by the first communications device, data transmission with a second communications device in the frequency-domain repetition mode.

Abstract: A single-ended output circulator includes a three-core optical fiber head having first, second, and third optical fiber cores; a walk-off crystal having a first surface facing towards the second end of the three-core optical fiber head tube and a second surface facing away from the second end of the three-core optical fiber head tube; a plurality of half-wave plates each having a first surface coupled to the second surface of the walk-off crystal and a second surface facing away from the second surface of the walk-off crystal; a collimating lens having a first end and a second end; a reflection mirror configured to reflect light beams from the collimating lens; an optical prism between the collimating lens and the reflection mirror and configured to transmit a light beam along a propagation direction according to a polarization direction of the light beam; and a polarization rotator.

Abstract: A vibration motor includes: a shell having an inner cavity; a vibrator; a magnetic component configured to drive the vibrator to vibrate; a first coil fixed to the shell; and a second coil fixed to the magnetic component. An alternating current applied to the first coil makes the vibrator to vibrate along the inner cavity. An adjustable current applied to the second coil makes a magnetic field of the magnetic component repel a magnetic field of the vibrator and provide a restoring force for the vibrator to reciprocate. A magnitude of the restoring force generated by the magnetic component is changed by adjusting a magnitude of the magnetic field of the magnetic component, to adjust a resonance frequency of the vibrator when the vibrator is vibrating. The resonance frequency of the vibration motor can be adjusted so that the vibration motor can have sufficiently high response in a wide frequency band.

Abstract: Disclosed is a negative angle pulp molded cup lid, wherein the cup lid is made of pulp and comprises a top portion (1) and a side portion (2) connected to an edge of the top portion (1). An inner wall of the side portion (2) has an inner conical surface (31), the inner conical surface (31) forms an angle of less than 90° with a lower surface of the top portion (1), and the inner diameter of the inner conical surface (31) gradually decreases from top to bottom, such that the sealing property and the structural strength can be improved.

Abstract: The present invention relates to a transfer device applied to a robotic arm and a production line for pulp molding, which solves the problems of lower production efficiency and the like in the prior art.

Abstract: Disclosed is application of obacunone in the manufacture of a medicament for prevention or treatment of lung injury and pulmonary fibrosis. The medicament consists of obacunone and pharmaceutically acceptable auxiliaries and additives, wherein obacunone is 3% to 25% by mass in the medicament. The obacunone in the medicament can inhibit bleomycin-induced lung injury and pulmonary fibrosis in mice, and regulate the expression of the inflammation-associated cytokines in the bleomycin-induced injured lung tissue in mice.

Abstract: Embodiments of the present disclosure disclose a data transmission method and a communications device. The method in the embodiments of the present disclosure includes: obtaining, by a first communications device, a transmission mode instruction, where the transmission mode instruction is used to instruct to use a frequency-domain repetition mode to transmit data, and the frequency-domain repetition mode means that same data is repeatedly transmitted on different frequency-domain resources; determining, by the first communications device, the frequency-domain repetition mode based on the transmission mode instruction; and performing, by the first communications device, data transmission with a second communications device in the frequency-domain repetition mode.

Abstract: Embodiments of the present disclosure relate to audio devices, especially to a voice coil and a speaker. The voice coil includes a voice-coil winding and a lead structure led out from the voice-coil winding. The lead structure includes a first starting terminal, a second starting terminal, a first lead and a second lead. Both the first starting terminal and the second starting terminal are located on the voice-coil winding. The first lead is formed by extending from the first starting terminal, and the second lead is formed by extending from the second starting terminal. The first lead and the second lead are centrally symmetrical about a geometric center of the voice-coil winding. The voice coil and the speaker in the embodiments of the present disclosure have an advantage of weakening swinging of a speaker during operation.

Abstract: A method for indicating and alarming about wet level of a diaper involves using a humidity sensor to perform relative humidity detection on the diaper, when the detected relative humidity is below 50% rh˜60% rh, showing the diaper's wet level as 0% rh, and when the detected relative humidity is 85% rh˜95% rh or more, showing the diaper's wet level as 100% rh, wherein functional conversion is performed to convert the relative humidity ranging between 60% rh and 85% rh˜95% rh proportionally into the diaper's wet level between 0% rh and 100% rh.

Abstract: The present invention discloses a dual-polarized antenna that includes a ground plate, a feeding part, and a radiant plate. The feeding part includes a first feeding part and a second feeding part. The first feeding part includes a first dielectric plate, a first feeding layer, and a first transmission line. The second feeding part includes a second dielectric plate, a second feeding layer, and a second transmission line. The first dielectric plate and the second dielectric plate are placed perpendicularly to each other and are perpendicularly installed on the ground plate, and the first transmission line and the second transmission line are separated from each other.

Abstract: A joint channel correction method, an apparatus, and a system are disclosed. The joint channel correction method includes: sending a first joint channel correction instruction to a first RRU; sending a second joint channel correction instruction to a second RRU; receiving a result sent by the second RRU about reception of the first correction reference signal through X2 receive channels in X2 traffic channels; receiving a result sent by the first RRU about reception of the second correction reference signal through X1 receive channels in X1 traffic channels; and obtaining correction compensation coefficients of the X1 traffic channels and/or the X2 traffic channels through calculation. Technical solutions provided by embodiments of the present application help implement channel correction between RRUs without a channel self-correction function.