Abstract: The embodiment of the disclosure provides a light source module and a display device. The light source module includes a substrate, a pad, a light emitting unit, and a cover layer, and at least one opening is provided on the pad. The opening and a via hole are provided on the pad. A cover layer is provided on the substrate. Metal material with good heat dissipation performance is filled in the corresponding opening or via hole. When the light emitting unit operates for a long time, the display device has a good heat dissipation effect, thereby improving the comprehensive performance.

Abstract: The present disclosure provides a multi-path universal asynchronous transceiver (UART) and transmission method thereof. The multi-path UART comprises a first buffer, a second buffer, and a tx aggregation and arbitration circuit respectively coupled to the first buffer and the second buffer and presets a predetermined threshold. The tx aggregation and arbitration circuit polls the first buffer and the second buffer according to the predetermined threshold, and executes an arbitration procedure on the first buffer and the second buffer to obtain at least one of first log information packet and at least one of second log information packet correspondingly. Thus, when inputting a plurality of log sources, it is not necessary to have a plurality of output pins and to avoid disorder caused by the cross-influence of multiple log information for resource conservation and providing log information correctness.

Abstract: The invention discloses a biological desulfurizer for removing organic sulfur in fracturing flowback fluid and application thereof. The biological desulfurizer includes a compound with a triazine structure formed by modifying chitosan with aldehydes and inorganic salts. The triazine structure has a good removal effect on hydrogen sulfide and organic sulfur such as mercaptan and sulfide. The biological desulfurizer of the invention has a sulfur capacity of up to 250 g/kg and a desulfurization efficiency of over 95% in 15 min. It can effectively remove the stink of sulfur-containing working water, improve the working environment of the well site, and reduce the impact of sulfur compounds on the atmospheric environment during the development of oil and gas fields.

Abstract: An invert emulsion having double particle size distribution, the invert emulsion having a particle size distribution of latex particles between 20 nm and 70 nm and between 100 nm and 500 nm in the same invert emulsion system. A preparation method for an invert emulsion comprises: forming an emulsion A and an emulsion B having different particle sizes by controlling an emulsifier system and an emulsification means, and preparing in one step an invert emulsion the particle size of which has bimodal distribution by means of a three-stage polymerization reaction between the emulsion A and the emulsion B in the same system. The invert emulsion is used as a water treatment flocculant, a sludge dewatering agent and a papermaking auxiliary agent, and in particular, the sludge dewatering agent fabricated from the invert emulsion is used for dewatering sludge.

Abstract: The present invention provides a die capable of achieving rapid forming and quenching therein. The die includes an upper die, a blank holder and a lower die, where the upper die is composed of an internal solid die core and a thin-walled skin. Grooves in communication with each other are disposed between the internal solid die core and the thin-walled skin. In a forming stage, the grooves are not filled or filled with a heat insulating material such as a gas; and in a quenching stage, a low-temperature medium is introduced into the grooves. The die can be used to achieve rapid forming and quenching of metal materials of different types and thicknesses.

Abstract: A method and system for eliminating echo in a speaker-microphone communication system are provided.

Abstract: A method and system for eliminating echo in a speaker-microphone communication system are provided.

Abstract: A propelling pencil has a writing core which can be fed out and drawn back controllably and freely. The front portion of the propelling pencil is inserted in the lower end of the shaft of the propelling pencil. The inner surface of the shaft has several ridges which together act as longitudinal guides for the writing core holder. A helical wire, controlling the core holder movement, is formed by winding a flat metal wire. The core holder is made of an elastic material and has a hole therein which has a large diameter at each end thereof and a relatively small diameter at its central region. The core holder is also provided with longitudinal ridges in its lower portion to prevent rotation of the writing core held therein.