Abstract: An embodiment of the present invention provides a RF power amplifier. The RF power amplifier comprises an RF input distribution network, multiple amplifiers and a signal combining network. The RF input distribution network is configured to divide an input RF signal into a main input signal and an auxiliary input signal. The multiple amplifiers are coupled in parallel to the RF input distribution network and configured to amplify the main and auxiliary input signals respectively by a main amplifier contributing a larger portion of the output power of the RF power amplifier and an auxiliary amplifier contributing a smaller portion of the output power of the RF amplifier. Each of the main and auxiliary amplifiers is selected from the amplifiers according to an impedance ZL of the transmit coil.

Abstract: Compounds of formula I, including their salts, as well as compositions and methods of using the compounds are set forth. The compounds have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV.

Abstract: The present invention provides an LED chip including a light-emitting layer, a P electrode, an N electrode, an anode and a cathode, the N electrode, the light-emitting layer and the P electrode are sequentially stacked, the P electrode is electrically connected to the anode, the N electrode is electrically connected to the cathode, the light-emitting layer includes multiple color light-emitting layers whose colors differ from each other, and the multiple color light-emitting layers are provided in a same layer, and electrically connected to the anode through the P electrode and to the cathode through the N electrode. The present invention further provides an LED, a backlight source and a display apparatus. When an LED including the LED chip is used as a backlight source of a liquid crystal display apparatus, performance ability of the display apparatus on a plurality of colors can be improved during image display.

Abstract: A method for planning and designing a debris flow drainage channel is provided. The position and total length of the drainage channel and a longitudinal slope of a gully bed of the drainage channel are determined. An inlet section, an outlet section and an acceleration section of the drainage channel are formed as fully lined channel type. After determining the length of the inlet section and the included angle between the side wall of the inlet section and the main channel, the length of the outlet section and the included angle between the side wall of the outlet section and the main channel, and the length of the acceleration section, the channel type and the length of the main channel section are also determined.

Abstract: Embodiments of the present disclosure provide a flexible display screen and a flexible display device. The flexible display screen includes a display screen body and a deformation component disposed on a back side of the display screen body, wherein when an ambient temperature is higher than a first temperature threshold value, the deformation component is deformed towards a direction in which the display screen body reveals curved display; when the ambient temperature is lower than a second temperature threshold value, the deformation component is deformed towards a direction in which the display screen body reveals flat display; and the second temperature threshold value is not greater than the first temperature threshold value.

Abstract: A package structure includes a first carrier plate, a second carrier plate, a pin group and an encapsulant member. A power component is disposed on a first top surface of the first carrier plate. The second carrier plate is disposed on the first top surface of the first carrier plate. A driving circuit is disposed on a second top surface of the second carrier plate for driving the power component. An opening runs through the second carrier plate, and the power component is accommodated within the opening. The pin group is assembled on the first carrier plate and/or the second carrier plate. The encapsulant member encapsulates the first carrier plate, the second carrier plate, a part of the first pin group and a part of the second pin group, so that the first pin group and the second pin group are partially exposed outside the encapsulant member.

Abstract: A method for bonding a three-dimensional cover, which includes the following steps: bonding a flexible display panel on a heavy release film through optical adhesive to obtain a bonded body; placing the bonded body on a carrying surface of a conformable tool, making the flexible display panel face the carrying surface of the conformable tool, and fixing two ends of the heavy release film in the bonded body to fixtures of the conformable tool; controlling the fixtures of the conformable tool to adjust the shape of the bonded body, so that the adjusted shape of the bonded body matches the three-dimensional cover; tearing off the heavy release film from the bonded body to obtain the flexible display panel with optical adhesive, and bonding the three-dimensional cover to the flexible display panel using the optical adhesive.

Abstract: The present disclosure discloses an OLED display panel, a method for manufacturing the same and the OLED display device. The OLED display panel comprises a flat region and a curved region, wherein the OLED display panel comprises a light-emitting element in the flat region and a light-emitting element in the curved region, each light-emitting element comprises a cathode and an anode, and a distance between the anode and the cathode of the light-emitting element in the curved region is greater than a distance between the anode and the cathode of the light-emitting element in the flat region.

Abstract: A zipper slider is provided. The zipper slider includes a slider body configured to slide along a zipper, the slider body having an upper wing with a top surface. The zipper slider also includes a pulling member integrally formed with the upper wing, the pulling member having at least one wall(s) on the upper wing each having a substantially closed aperture therethrough, wherein the at least one wall(s) is longitudinally disposed on the top surface of the upper wing and the at least one substantially closed aperture(s) forms a transverse channel. The zipper slider further includes a pull tab having a pintle, wherein the pintle is disposed in the transverse channel.

Abstract: The present invention provides methods and apparatus for unmanned aerial vehicles (UAVs) with improved reliability. According to one aspect of the invention, interference experienced by onboard sensors from onboard electrical components is reduced. According to another aspect of the invention, user-configuration or assembly of electrical components is minimized to reduce user errors.

Abstract: The present disclosure discloses an organic light emitting diode substrate, comprising: a base substrate and a device layer formed in a middle part thereon, a region on the base substrate other than the device layer being divided into an inner ring region that surrounds the device layer and an outer ring region outside the inner ring region; a first adhesive layer adhered on the device layer and the inner ring region and covering the device layer and the inner ring region, the first adhesive layer being used to block moisture and oxygen for the device layer; a second adhesive frame adhered on the outer ring region and the first adhesive layer and covering a portion of the first adhesive layer over the inner ring region, the second adhesive frame having a higher adhesive strength than the first adhesive layer.

Abstract: Systems, methods, and devices for propelling self-propelled movable objects are provided. In one aspect, a rotor assembly for a self-propelled movable object comprises: a hub comprising a first fastening feature; a drive shaft comprising a second fastening feature and directly coupled to the hub by a mating connection of the first and second fastening features, wherein the drive shaft is configured to cause rotation of the hub such that the mating connection of the first and second fastening features is tightened by the rotation; and a plurality of rotor blades coupled to the hub and configured to rotate therewith to generate a propulsive force.

Abstract: A package module includes a circuit board, an electronic component disposed on the circuit board, a frame disposed next to at least one side of the electronic component, and an encapsulant. A gap is formed between the frame and the electronic component. The encapsulant includes a first portion covering at least a part of the circuit board, and a second portion filling into at least a part of the gap. The first portion has a first height relative to the circuit board, and the second portion has a second height relative to the circuit board, in which the second height is greater than the first height.

Abstract: A method, apparatus, storage medium, and terminal for establishing a Wi-Fi connection is provided. The method includes the following steps: when a workstation is detected, determining a Bluetooth binding relationship with the workstation; if the Bluetooth binding relationship indicates that a binding has already been established with the workstation via Bluetooth, sending a session request to the workstation to request to start a session; when it is determined that the session is started successfully, requesting Wi-Fi connection parameter information from the workstation via Bluetooth; and after the Wi-Fi connection parameter information is received, using the Wi-Fi connection parameter information to establish a Wi-Fi connection with the workstation.

Abstract: A method for manufacturing a display screen, including: preparing a first substrate and reserving at least one first hole region on the first substrate; preparing a second substrate and reserving at least one second hole region on the second substrate; adding liquid crystals onto the first substrate or the second substrate and aligning the first substrate with the second substrate such that the first hole region is aligned with the second hole region; and forming a hole penetrating the first substrate and the second substrate through the first hole region and the second hole region.

Abstract: Embodiments of the present application provide a method and device for generating a logistics distribution network. The method includes: determining, by a supply-chain collaboration server, an expected sales range of a transaction object; determining, according to corresponding relationships between identifiers of warehouses and coverage ranges of distribution services of the warehouses obtained from logistics provider servers, identifiers of selectable warehouses of which corresponding coverage ranges of distribution services jointly cover the expected sales range of the transaction object; and generating a logistics distribution network for the transaction object according to the identifiers of the selectable warehouses and the corresponding coverage ranges of the distribution services of the selectable warehouses, the logistics distribution network having the selectable warehouses as nodes and distribution paths between the selectable warehouses as routes.

Abstract: The present invention provides methods and apparatus for unmanned aerial vehicles (UAVs) with improved reliability. According to one aspect of the invention, interference experienced by onboard sensors from onboard electrical components is reduced. According to another aspect of the invention, user-configuration or assembly of electrical components is minimized to reduce user errors.

Abstract: Disclosed are compounds of Formula (I), including pharmaceutically acceptable salts, pharmaceutical compositions comprising the compounds, methods for making the compounds and their use in inhibiting HIV integrase and treating those infected with HIV or AIDS.

Abstract: Improved sensing devices are provided for determining the spatial disposition of a movable object. In one aspect, an apparatus for determining a spatial disposition of a movable object comprises: a support base configured to be carried by a movable object; one or more accelerometers coupled to the support base via a first damping element configured to damp motion of the one or more accelerometers; and one or more gyroscopes coupled to the support base via a second damping element configured to damp motion of the one or more gyroscopes, wherein an amount of motion damping provided by the first damping element is greater than an amount of motion damping provided by the second damping element.

Abstract: What are disclosed are a flexible display device and a method of detecting a curved state of a flexible display panel thereof, which can estimate a curved state of a flexible display panel. The flexible display device includes a flexible display panel and a controller. The flexible display panel includes N optical fibers which can be curved with the curving of the flexible display panel, a laser transmitter disposed at an input terminal of the optical fiber and a light intensity detector disposed at an output terminal of the optical fiber, wherein N is an integer greater than or equal to 1. The controller is configured to acquire a light intensity parameter detected by the light intensity detector, and determine a current state of the flexible display panel according to the light intensity parameter, wherein M is an integer greater than or equal to 1 and smaller than or equal to N.