Abstract: The disclosure provides a new method for preparing a WPU synthetic leather foaming layer based on a Pickering foam template method. The key of the method is to use the soft waterborne polyurethane as raw materials, add waterborne crosslinking agent and hydrophobic inorganic solid particles as Pickering waterborne foam stabilizers to obtain Pickering waterborne foam slurry of polyurethane latex particles through high-speed emulsification; and dry the slurry to obtain the waterborne polyurethane foam layer. The preparation process does not use any organic solvents, is clean and environmentally-friendly, and is simple to operate, making it easier to realize industrialized production. In addition, the Pickering foam has strong interface stability, which effectively solves the problem of difficult adjustment of the pore size caused by the accumulation and collapse of bubbles during the drying process of the mechanical foaming method, and the prepared synthetic leather foam layer has good hygienic properties.

Abstract: An array substrate, a display device, and a drive-for-heating method for the display device. The array substrate includes: pixel units on a first base substrate; a data line on the first base substrate; a touch signal line on the first base substrate; a heating element on the first base substrate, and configured to generate heat under driving of a drive-for-heating current; a common electrode on the first base substrate and reused as a touch electrode; and a pixel electrode on the first base substrate. The thin film transistor includes an active layer in a semiconductor layer and a gate electrode in a first conductive layer. The data line is in a second conductive layer, one of the pixel electrode and the common electrode is in a third conductive layer, and a layer where the heating element is located is between the semiconductor layer and the third conductive layer.

Abstract: Some embodiments of the disclosure provide methods for calculating carbon footprints of leather chemical materials. In some examples, the method includes: determining a calculation range of a carbon footprint of a leather chemical material in a life cycle as “cradle to gate”; determining a system boundary, a functional unit, and cut-off criteria for the carbon footprint of the leather chemical material in the life cycle; dividing the carbon footprint into a raw chemical obtaining process, a production process of the leather chemical material, and a waste disposal process within the system boundary; determining a carbon footprint calculation model for the leather chemical material according to resource consumption and environmental emission of each process; collecting and determining a quantity and a value required by each parameter in the carbon footprint calculation model; and calculating the carbon footprint of the leather chemical material using the carbon footprint calculation model.

Abstract: The present disclosure provides a switching valve which includes a valve body provided with a water inlet channel, a first water outlet, and a second water outlet, wherein the valve body is internally provided with a first water outlet chamber and a second water outlet chamber; a driving component having a plug end, wherein the driving component is slidably connected between the first water outlet chamber and the second water outlet chamber; a reset component configured to control the driving component to return to a position where the plug end contacts the end portion of the side wall of the second water outlet chamber, such that the valve body is automatically switched from the second water outlet state to the first water outlet state. After the use of the second water outlet state, the driving rod is controlled to automatically return to the first water outlet state.

Abstract: Some embodiments of the disclosure provide accounting methods for carbon footprints of leather products. In some examples, the accounting method includes the following steps: firstly, determining a system boundary for a carbon footprint in a life cycle of a leather product; dividing the carbon footprint into a raw material production and transportation stage, a leather product production stage, and a leather product transportation and distribution stage within the system boundary for the leather product; determining carbon emission source inventories of the stages and emission factors thereof in combination with process and flow characteristics of the stages, and then constructing carbon emission accounting models of the stages, and calculating carbon footprint data of the stages, and, finally, obtaining the carbon footprint of the leather product.

Abstract: A printed circuit board, a display device and an image display system are provided. The printed circuit board is configured to drive a display panel and includes a polygonal outline including a first side and a second side, and the extension direction of the first side and the extension direction of the second side intersect and are not perpendicular to each other. The printed circuit board includes a first interface configured to be electrically connected to a controller; and a second interface configured to be electrically connected to the display panel. The length extension direction of the first interface forms a first included angle with respect to the extension direction of the first side, and the length extension direction of the second interface forms a second included angle with respect to the extension direction of the second side, each included angle is not greater than 20 degrees.

Abstract: A water supply shower body includes a five-way water distribution base, an installation base, a water inlet base, a first switch valve assembly, and a second switch valve assembly. The five-way water distribution base comprises a water inlet, a first water outlet, a first installation port, a second water outlet, and a second installation port. The first installation port and the second installation port communicate with the water inlet, and the first installation port and the second installation port respectively communicate with the first water outlet and the second water outlet. One end of the water inlet base comprises a water outlet end connected to the water inlet, and another end of the water inlet base comprises a water inlet end.

Abstract: A light bulb apparatus includes a glass housing, a sleeve housing, a light source plate, a sleeve connector wrapping and an Edison cap. The glass housing defines a tubular part and a trumpet part. The sleeve housing includes a neck part and a protruding part. The neck part is enclosed by the tubular part of the glass housing. The protruding part is exposed outside tubular part. The light source plate is fixed to the sleeve housing. The sleeve connector wraps an exterior surface of the protruding part. The Edison cap is attached to the sleeve connector.

Abstract: A sensing and touch-controlled faucet includes a casing, a covering plate, a water flow sensor, and a soap sensor. The casing has a water outlet arranged proximal to the bottom of a faucet working end, the casing also has a soap dispensing port and a mounting cavity communicating with the water outlet and the soap dispensing port, the soap dispensing port is arranged near the water outlet and the soap dispensing port is located at a side away from a faucet working end relative to the water outlet. When washing hands with the faucet, after the soap falls on the inner side of the fingers, if the motion of the hands is rapidly detected by the water flow sensor which then controls the water outlet to discharge water, the soap will not be easily washed away by the water flow.

Abstract: A method and system for uploading data in real time via a USB virtual serial port, and a USB host includes: creating a receiving thread, and presetting a plurality of USB transactions being USB BULK IN packets, and a length requested to be uploaded, submitting the plurality of USB transactions to a USB host driver, and when the receiving thread receives a returned data packet, transmitting the returned data packet to a serial port application layer buffer, immediately applying for a new USB transaction, and submitting the new USB transaction to the USB host driver; and executing, a USB transaction ranked first in a USB transaction queue, when data sent by a USB device is received and the data meets the batch endpoint size, ending the USB transaction and returning a data packet to the receiving thread, and immediately executing next USB transaction in the USB transaction queue.

Abstract: A printed circuit board, a display device and an image display system are provided. The printed circuit board is configured to drive a display panel and includes a polygonal outline including a first side and a second side, and the extension direction of the first side and the extension direction of the second side intersect and are not perpendicular to each other. The printed circuit board includes a first interface configured to be electrically connected to a controller; and a second interface configured to be electrically connected to the display panel. The length extension direction of the first interface forms a first included angle with respect to the extension direction of the first side, and the length extension direction of the second interface forms a second included angle with respect to the extension direction of the second side, each included angle is not greater than 20 degrees.

Abstract: The present disclosure provides a switching valve which includes a valve body provided with a water inlet channel, a first water outlet, and a second water outlet, wherein the valve body is internally provided with a first water outlet chamber and a second water outlet chamber; a driving component having a plug end, wherein the driving component is slidably connected between the first water outlet chamber and the second water outlet chamber; a reset component configured to control the driving component to return to a position where the plug end contacts the end portion of the side wall of the second water outlet chamber, such that the valve body is automatically switched from the second water outlet state to the first water outlet state. After the use of the second water outlet state, the driving rod is controlled to automatically return to the first water outlet state.

Abstract: A method and system for uploading data in real time via a USB virtual serial port, and a USB host includes: creating a receiving thread, and presetting a plurality of USB transactions being USB BULK IN packets, and a length requested to be uploaded, submitting the plurality of USB transactions to a USB host driver, and when the receiving thread receives a returned data packet, transmitting the returned data packet to a serial port application layer buffer, immediately applying for a new USB transaction, and submitting the new USB transaction to the USB host driver; and executing, a USB transaction ranked first in a USB transaction queue, when data sent by a USB device is received and the data meets the batch endpoint size, ending the USB transaction and returning a data packet to the receiving thread, and immediately executing next USB transaction in the USB transaction queue.

Abstract: A hydraulically balanced water-stop switch mechanism includes a water passage pipe, a water passage is formed between an inner pipe and an outer pipe of the water passage pipe. One end of the inner pipe is a closed end, and the other end is movably provided with a water-stop plug. A switch assembly is configured to cause movement of the water-stop plug. A chamber is formed between the water-stop plug and the closed end in the water passage pipe, and the chamber is provided with a ventilation hole. Preferably, the switch assembly includes a push rod, a automatic retractable and locking mechanism as applied in a ballpoint pen, and a elastic reset member for causing the water-stop plug to move toward the water outlet.

Abstract: A shower head with automatically resettable spray gun includes a shower head body including a water passage switching mechanism, a shower head, and a spray gun head which respectively communicates with the water passage switching mechanism. The water passage switching mechanism includes a water passing member and a water passage switching unit. The water passing member includes a water inlet, a water passage switching cavity communicating with the water inlet, a shower head water passage and a spray gun water passage which respectively communicates with the water passage switching cavity. The water passage switching unit arranged in the water passage switching cavity includes a button arranged at the water passing member by hinge joint, a switching link rod arranged at a lower portion of the button, and an elastic member connected between the switching link rod and the water passage switching cavity.