Abstract: Disclosed are a low-cost high-efficiency drip irrigation system for a cotton field and a use method thereof. The drip irrigation system for a cotton field includes a filtering device and a water supply device; wherein the filtering device adopts different types of single filtering devices or combined filtering devices according to different water source types; the water supply device includes multiple stages of main pipes, submain pipes and laterals; the laterals (a drip irrigation tape with labyrinth on one side or a drip irrigation tape inlaid with emitters inside) are laid on the surface of the ground and located below a mulch film. The drip irrigation system adopts the design of large flow (1.5-3.4 L/h), slightly larger pipe diameter (>75 mm), low water pressure (operating pressure of drip irrigation tape being 0.03-0.07 MPa) and suitable drip irrigation uniformity (80%-90%).

Abstract: Provided is an anti-dazzling device, including a first electrode, a second electrode and a dimming structure, wherein the first electrode and the second electrode are disposed opposite to each other, and the dimming structure is disposed between the first electrode and the second electrode and is configured to change a light transmittance of the anti-dazzling device under action of voltage. An OLED display device and a method for manufacturing an anti-dazzling device are also provided.

Abstract: This disclosure provides methods, devices and systems for generating enhanced trigger frames. Some implementations more specifically relate to trigger frame designs that support gains in data throughput achievable in accordance with the IEEE 802.11be amendment, and future generations, of the IEEE 802.11 standard. In some implementations, an enhanced trigger frame may be used to solicit a non-legacy trigger-based (TB) physical layer protocol convergence protocol (PLCP) protocol data unit (PPDU) from one or more wireless stations (STAs). In some implementations, the enhanced trigger frame may be configurable to support multiple versions of the IEEE 802.11 standard. For example, an enhanced trigger frame may be configured in accordance with a legacy trigger frame format or a non-legacy trigger frame format. Thus, when configured in accordance with the legacy trigger frame format, the enhanced trigger frame can also be used to a legacy TB PPDU from one or more STAs.

Abstract: Provided is a method for producing washing enzyme having protease resistance. According to the method, the washing enzyme having resistance to protease is obtained by carrying out fusion expression on a gene of the washing enzyme with the gene of a protease inhibitory peptide, thereby facilitating maintaining the stability of various enzyme components in an enzyme-containing detergent, and improving the use effect of the detergent.

Abstract: The present invention discloses a display method and an electronic device. The method is applicable to an electronic device, the electronic device is capable of data transmission with a display device, the electronic device includes a first display unit, and the display device includes a second display unit; and the method includes: when the electronic device obtains information needing to be displayed, determining whether the information needing to be displayed is private information and generating a first determination result; in a case that the information needing to be displayed is private information, transmitting the information needing to be displayed to the first display unit only; and in a case that the information needing to be displayed is not private information, transmitting the information needing to be displayed at least to a second display unit.

Abstract: A SDN controller receives a first packet of a flow. The SDN controller generates a flow entry for the flow and generates an offset match field in match field of the flow entry according to an offset matching that is to be performed. The offset match field includes a match position, a match length, a match mask and a match value.

Abstract: A sound collection method and an electronic device are disclosed. The method is applicable to an electronic device that includes an image acquisition unit and an audio collection unit. The method includes determining a focus object when the image acquisition unit is acquiring images; obtaining a position relationship information between the focus object and the image acquisition unit based on the focus object; obtaining a first direction information based on the position relationship information; and controlling the audio collection unit to collect the sound from a sound source corresponding to the first direction based on the first direction information.

Abstract: The present invention provides a mutant strain of Bacillus subtilis SFA-H31 and includes an optimized method for producing of acetoin using this strain. The advantage of this method to produce acetoin has been defined by its high-yield without mixture with diacetyl or 2,3-butanediol, both of which are usually accompanied with acetoin in other strain. This Bacillus subtilis mutant strain has been deposited in China General Microbiological Culture Collection (CGMCC) and the accession number is CGMCC No. 1869, in which the process of fermentation for acetoin production is composed of (1) strain activation, (2) seed culture, (3) fermentation, (4) quantification of substrates and products. Based on current method, the concentration of acetoin in the ferment broth can reach to 35-55 g/L and the conversion rate of glucose to acetoin is in the range of 40-50%.

Abstract: The present invention discloses a display method and an electronic device. The method is applicable to an electronic device, the electronic device is capable of data transmission with a display device, the electronic device includes a first display unit, and the display device includes a second display unit; and the method includes: when the electronic device obtains information needing to be displayed, determining whether the information needing to be displayed is private information and generating a first determination result; in a case that the information needing to be displayed is private information, transmitting the information needing to be displayed to the first display unit only; and in a case that the information needing to be displayed is not private information, transmitting the information needing to be displayed at least to a second display unit.

Abstract: A sound collection method and an electronic device are disclosed. The method is applicable to an electronic device that includes an image acquisition unit and an audio collection unit. The method includes determining a focus object when the image acquisition unit is acquiring images; obtaining a position relationship information between the focus object and the image acquisition unit based on the focus object; obtaining a first direction information based on the position relationship information; and controlling the audio collection unit to collect the sound from a sound source corresponding to the first direction based on the first direction information.

Abstract: The present invention provides a mutant strain of Bacillus subtilis SFA-H31 and includes an optimized method for producing of acetoin using this strain. The advantage of this method to produce acetoin has been defined by its high-yield without mixture with diacetyl or 2,3 butanedinol, both of which are usually accompanied with acetoin in other strain. This Bacillus subtilis mutant strain has been deposited in China General Microbilogical Culture Collection (CGMCC) and the accession number is CGMCC No. 1869, in which the process of fermentation for acetoin production is composed of (1) strain activation, (2) seed culture, (3) fermentation, (4) quantification of substrates and products. Based on current method, the concentration of acetoin in the ferment broth can reach to 35-55 g/L and the conversion rate of glucose to acetoin is in the range of 40-50%.