Abstract: A brush phase shifter includes an actuating member, a gear assembly, a main printed circuit board and a brush member. The gear assembly includes a driving gear, a transmission gear and a linkage gear. The driving gear is a bevel gear. The transmission gear includes a bevel gear portion and a cylindrical gear portion. The bevel gear portion has a large end and a small end. The cylindrical gear portion is integrally formed at the large end of the bevel gear portion. The linkage gear is a cylindrical gear. The driving gear meshes with the bevel gear portion of the transmission gear. The cylindrical gear portion of the transmission gear meshes with the linkage gear. The brush member is fixedly connected with the linkage gear. The brush member is rotatably arranged on the main printed circuit board. The present disclosure precisely controls the phase change and realize miniaturization.

Abstract: A method for manufacturing a semiconductor device includes: forming a transistor on a semiconductor substrate, in which the transistor includes a gate structure and a source/drain structure; forming a patterned dielectric layer on the semiconductor substrate, in which the patterned dielectric layer includes an opening extending from a top surface of the patterned dielectric layer to a top surface of the source/drain structure; forming a dielectric contact spacer to cover a sidewall of the opening; and forming a conductive contact in the opening such that the conductive contact is connected to the source/drain structure and is isolated from the gate structure by the dielectric contact spacer and the patterned dielectric layer.

Abstract: An atomizing device includes a liquid containing module and an atomizing assembly. An inside of the liquid containing module has a fixing element and a liquid storage container. The liquid containing module has a flowing channel communicated with the fixing element. The liquid storage container surrounds a peripheral wall of the flowing channel and an outer surface of the fixing element. The fixing element has an accommodating space. A side wall of the accommodating space has at least one first liquid guiding groove. The accommodating space is equipped with a bushing. A side wall of the bushing has at least one second liquid guiding groove. The atomizing assembly is mounted under the liquid containing module. The atomizing assembly is equipped with an atomizing core module assembled in the bushing. A side wall of the atomizing core module has at least one third liquid guiding groove.

Abstract: A brush phase shifter includes an actuating member, a gear assembly, a main printed circuit board and a brush member. The gear assembly includes a driving gear, a transmission gear and a linkage gear. The driving gear is a bevel gear. The transmission gear includes a bevel gear portion and a cylindrical gear portion. The bevel gear portion has a large end and a small end. The cylindrical gear portion is integrally formed at the large end of the bevel gear portion. The linkage gear is a cylindrical gear. The driving gear meshes with the bevel gear portion of the transmission gear. The cylindrical gear portion of the transmission gear meshes with the linkage gear. The brush member is fixedly connected with the linkage gear. The brush member is rotatably arranged on the main printed circuit board. The present disclosure precisely controls the phase change and realize miniaturization.

Abstract: A semiconductor device and method of manufacturing that includes a first etch stop layer and a second etch stop layer to prevent delamination and damage to underlying components. A first passivation layer and a second passivation layer are disposed on a substrate, with a metal pad exposed through the passivation layers and contacting a top metal component of the substrate. The first etch stop layer is then formed on the second passivation layer and the metal pad. A third passivation layer is then formed on the substrate with an opening to the metal pad, which is covered by the first etch stop layer. The second etch stop layer is then formed on the third passivation layer and in the opening on the second etch stop layer. A bottom metal film/conductive component is then formed on the second etch stop layer, photoresist is applied, and wet etching is performed. The metal pad is protected from damage caused by delamination of the second etch stop layer by the first etch stop layer.

Abstract: A heat dissipating apparatus includes a carrier layer, a basal capillary layer and a capillary post. The carrier layer has a heat exchange surface and a carrier surface. The carrier surface faces away from the heat exchange surface. The basal capillary layer has a first surface and a second surface opposite to each other. The basal capillary layer is stacked on the carrier layer so that the first surface of the basal capillary layer contacts the carrier surface of the carrier layer. The capillary post protrudes from the second surface of the basal capillary layer.

Abstract: The disclosure provides a manufacturing method of a flat heat exchanger. The manufacturing method includes flattening a round heat pipe to a flat heat pipe, welding a first part of the flat heat pipe, and welding a second part of the flat heat pipe. After welding the second part of the flat heat pipe, the manufacturing method further includes cutting off part(s) of the first part or the second part of the flat heat pipe and trimming the flat heat pipe. Before welding the first part or the second part of the flat heat pipe, there is no pipe shrinkage process performed on the flat heat pipe.

Abstract: Provided are an intermediate for synthesizing a camptothecin derivative, a preparation method therefor, and the use thereof. An intermediate A can be obtained from 3-fluoro-4-methylaniline by means of acylation, bromination, and cross-coupling reactions. The intermediate A can be used for preparing an intermediate B to further prepare exatecan mesylate. The intermediate compound B can be obtained from the intermediate A by means of a rearrangement reaction, and exatecan mesylate can be obtained from the intermediate compound B by means of deprotection for acetamido and amino at the a site, a condensation reaction, and a hydrolysis reaction. The reaction starting materials have a low price, the reaction conditions of each step are moderate, the operation is simple, and the yield is high, such that the intermediate is suitable for industrial production.

Abstract: Provided are an anti-CD47/anti-PD-L1 antibody, a pharmaceutical composition of the anti-CD47/anti-PD-L1 antibody, and applications thereof. The anti-CD47/anti-PD-L1 antibody provides antitumor activity, is free of significant red blood cell toxicity, and is applicable in preparing an antitumor medicament.

Abstract: An antenna oscillator unit includes a radiator and a balun support. The radiator is fixed to the balun support and includes a plurality of low-frequency oscillator arms circumferentially distributed along the balun support. Each of the low-frequency oscillator arms includes two radiating sections connected to each other and a connecting section connecting the two radiating sections to form a closed loop. The two radiating sections are substantially perpendicular to each other. The antenna oscillator unit of some embodiments can avoid mutual coupling of signals from the antenna oscillator unit and an adjacent high-frequency oscillator and can improve the capability to radiate electromagnetic signals.

Abstract: An atomizing device includes a liquid containing module and an atomizing assembly. An inside of the liquid containing module has a fixing element and a liquid storage container. The liquid containing module has a flowing channel communicated with the fixing element. The liquid storage container surrounds a peripheral wall of the flowing channel and an outer surface of the fixing element. The fixing element has an accommodating space. A side wall of the accommodating space has at least one first liquid guiding groove. The accommodating space is equipped with a bushing. A side wall of the bushing has at least one second liquid guiding groove. The atomizing assembly is mounted under the liquid containing module. The atomizing assembly is equipped with an atomizing core module assembled in the bushing. A side wall of the atomizing core module has at least one third liquid guiding groove.

Abstract: An antenna oscillator unit includes a radiator and a balun support. The radiator is fixed to the balun support and includes a plurality of low-frequency oscillator arms circumferentially distributed along the balun support. Each of the low-frequency oscillator arms includes two radiating sections connected to each other and a connecting section connecting the two radiating sections to form a closed loop. The two radiating sections are substantially perpendicular to each other. The antenna oscillator unit of some embodiments can avoid mutual coupling of signals from the antenna oscillator unit and an adjacent high-frequency oscillator and can improve the capability to radiate electromagnetic signals.

Abstract: Disclosed is an intelligent automatic conical net making machine. The net making machine comprises a net winding device (3) and a net binding device (4). The net winding device (3) comprises a filter screen winding shaft (3.1), a filter screen winding drum (3.3) and a net winding power device (3.2). The filter screen winding shaft (3.1) comprises a conical hollow shaft body, and a strip-shaped net binding hole is axially provided in the hollow shaft body. The filter screen winding drum (3.3) comprises two arc-shaped plates (3.5) hinged together, and the two arc-shaped plates (3.5) can be driven by the net winding power device (3.2) to be opened and closed along a hinged shaft to wrap the filter screen winding shaft (3.1) without shielding the net binding hole. The net binding device (4) comprises an automatic stapler (4.1) and a stapler base mould (4.5), and the stapler base mould (4.5) of the net binding device (4) can be inserted into the hollow shaft body of the filter screen winding shaft (3.1).

Abstract: The disclosure provides a flat heat exchanger. The flat heat exchanger includes a flat pipe part, a first welded part, a second welded part and a capillary structure. The flat pipe part has a fluid channel. The first welded part and the second welded part are respectively located at two opposite ends of the flat pipe part to close two opposite ends of the fluid channel. At least part of the capillary is located within the fluid channel of the flat pipe part.

Abstract: Disclosed is an intelligent automatic conical net making machine. The net making machine comprises a net winding device (3) and a net binding device (4). The net winding device (3) comprises a filter screen winding shaft (3.1), a filter screen winding drum (3.3) and a net winding power device (3.2). The filter screen winding shaft (3.1) comprises a conical hollow shaft body, and a strip-shaped net binding hole is axially provided in the hollow shaft body. The filter screen winding drum (3.3) comprises two arc-shaped plates (3.5) hinged together, and the two arc-shaped plates (3.5) can be driven by the net winding power device (3.2) to be opened and closed along a hinged shaft to wrap the filter screen winding shaft (3.1) without shielding the net binding hole. The net binding device (4) comprises an automatic stapler (4.1) and a stapler base mould (4.5), and the stapler base mould (4.5) of the net binding device (4) can be inserted into the hollow shaft body of the filter screen winding shaft (3.1).

Abstract: Disclosed herein is a framework for pushing service notifications to users via selected channels that are chosen based on user history. In accordance with one aspect, the framework determines if a notification is to be sent to a particular user. The framework may further determine if the notification requires an action. If the notification requires no action, the framework may choose, from multiple channels, a channel with lowest receive time duration. The framework may then send the notification via the chosen channel.

Abstract: An exemplary flat heat pipe includes a hollow, flattened casing and a first wick structure and a second wick structure received in the casing. The casing includes a top plate and a bottom plate opposite to the top plate. The first wick structure is formed by weaving wires, and the second wick structure is made of sintered metal powder. The first and second wick structures are disposed at inner sides of the bottom and top plates of the casing, respectively. The first and second wick structures contact each other. The casing defines two vapor channels at opposite lateral sides of the combined first and second wick structures, respectively.

Abstract: Disclosed herein is a framework for pushing service notifications to users via selected channels that are chosen based on user history. In accordance with one aspect, the framework determines if a notification is to be sent to a particular user. The framework may further determine if the notification requires an action. If the notification requires no action, the framework may choose, from multiple channels, a channel with lowest receive time duration. The framework may then send the notification via the chosen channel.