Abstract: A toolbox group connecting structure includes a connecting device and a snap-fitting device. The connecting device and the snap-fitting device are respectively installed on two adjacent toolboxes, and the two adjacent toolboxes are inserted to mate through the connecting device and the snap-fitting device, a plurality of toolboxes together form a trolley tool cart. By combining the plurality of toolboxes into the trolley tool cart that can be easily moved, the connection between the toolboxes constitutes an independent connection, thus making classification clear and not affecting each other. Therefore, it is possible to take and put down one toolbox in any position directly, and it is only necessary to separate two toolboxes connected to the toolbox. Meanwhile, the toolbox has a weight no effect on a process of taking, so that taking the toolbox is more efficient and quicker.

Abstract: The present disclosure provides a quick-switching waist buckle for a tool bag, including: a female component and a subcomponent fixed to the female component, the female component is a detachable buckle structure, the female component is fixed to the belt, the detachable subcomponent is fixed to the female component and used for fastening the tool bag. The fixing method between the female component and the belt can ensure that it will not separate from the belt, and the pressing unit can prevent the female component from sliding on the belt. The female component is fixed by pulling and fastening between the front and rear side plates for easy disassembly from the belt when needed. The front side plate on the female component and the fixing plate on the subcomponent can be quickly fixed by blind insertion.

Abstract: A metal powder preparation system and method are provided. The metal powder preparation system includes a medium frequency smelting furnace, a homogeneous insulated quantitative pouring furnace, a precision-controlled liquid level temperature pouring ladle, and a plurality of groups of atomization mechanisms connected in sequence. The present application improves the preparation quality of the metal powder, so that the parameters such as the powder particle size, sphericity, fluidity, oxygen content, component distribution, and particle size distribution of the metal powder can all meet the requirements of high-quality metal additive manufacturing, achieving efficient and continuous preparation of the metal powder at the same time.

Abstract: The disclosure provides a full-color light emitting device and a display module. A light emitting layer, a refractive layer, a spacer layer and a light processing layer are included. The refractive layer is disposed above the light emitting layer, the spacer layer is disposed above the refractive layer, and the light processing layer is disposed above the spacer layer. The light emitting layer includes a first light emitting part, a second light emitting part and a third light emitting part. The light processing layer includes a first light processing part, a second light processing part, and a third light processing part, and a baffle wall is disposed between any two adjacent light processing parts in the first light processing part, the second light processing part and the third light processing part. A light refractive index of the refractive layer is greater than a light refractive index of the spacer layer.

Abstract: The present invention provides a separation functional layer that exhibits suppressed leakage of an ionic liquid and has an enhanced strength. A separation functional layer of the present invention includes: an ionic liquid; a polymer A that forms a crystal structure in the ionic liquid; and a polymer B different from the polymer A. A separation membrane of the present invention includes: the separation functional layer; and a porous support member supporting the separation functional layer.

Abstract: This application discloses an audio stream switching method and apparatus. After a switching device receives a switching instruction, the switching device determines a synchronization relationship between a switch-in stream and a switch-out stream, determines a parameter value of a switching point of the switch-in stream based on the synchronization relationship and a timestamp of a packet in the switch-in stream, and determines a timestamp of a switching point of the switch-out stream based on the synchronization relationship and a timestamp of a packet in the switch-out stream, and/or the switching device switches a packet that is in the switch-out stream and whose parameter value is greater than the parameter value of the switching point of the switch-out stream to a packet that is in the switch-in stream and whose parameter value is greater than the parameter value of the switching point of the switch-in stream.

Abstract: A white light emitting device, a light bar and a light apparatus. A relative spectrum of the white light emitting device is ?(?). A relative spectrum of a black body radiation with a corresponding color temperature is S(?). An area normalization is performed on ?(?) and S(?) to convert an equal energy spectrum ??(?) of the white light emitting device and an equal energy spectrum S?(?) of the black body radiation with the corresponding color temperature. A degree of similarity R of the equal energy spectrum of the white light emitting device and the equal energy spectrum of the black body radiation satisfies the following formula: R = 1 - ? ? ? ? i ? ? n ? ? S ? ? ( ? ) - ? ? ? ( ? ) ? ? ? ? i ? ? n ? S ? ? ( ? ) , when ?i is 380 nm, ?n is 680 nm, R?85%.

Abstract: Provided are an LED package device and a preparation method thereof, and a display device. The package device includes a transparent substrate, a black layer, a transparent bonding layer, multiple LED chips, and a mold protective layer. The multiple LED chips are fixed to the transparent substrate based on the transparent bonding layer. The black layer is configured to cover the transparent bonding layer. The black layer is provided with multiple matching holes. The multiple LED chips are matched in the multiple matching holes in a one-to-one correspondence. The cover area of the transparent bonding layer is S1. The area of the top surface of the transparent substrate is S2. The constraint relationship between S1 and S2 is S1<S2. The mold protective layer is configured to wrap the black layer, the transparent bonding layer, and the multiple LED chips on the transparent substrate.

Abstract: A light-emitting system for healthy lighting, a light bar and a light fixture, wherein they are applied to the field of lighting and can emit white light with a color temperature range of 2700 K to 6500 K. A relative spectral power of the light-emitting system is set to be ? (?), and a relative spectral power distribution of a solar spectral curve corresponding to the color temperature is set to be S (?). The white light has a first characteristic waveband, and a wavelength region of the first characteristic waveband is 380-405 nm. The white light has a second characteristic waveband, and a wavelength region of the second characteristic waveband is 415-455 nm. The white light has a third characteristic waveband, and a wavelength region of the third characteristic waveband is 465-495 nm.

Abstract: A method specifically includes, in a human-computer dialog interaction process, when a server performs slot extraction on user discourse, if there is a slot corresponding to which information fails to be extracted and the slot is an optional key slot, the server asks the user a question to determine whether the information corresponding to the slot is necessary. If the information is necessary, the server further extracts the information corresponding to the slot. If the information is unnecessary, the server does not extract the information corresponding to the slot.

Abstract: A video transmission method, system and a device includes a sending device that generates and sends a source video stream, where the source video stream includes a plurality of video data packets, each video data packet includes discard indication information, a discard priority indicated by discard indication information included in a first video data packet is higher than a discard priority indicated by discard indication information included in a second video data packet, video data in a video frame whose frame type is a non-reference B frame is encapsulated into the first video data packet, and video data in a video frame whose frame type is an I frame, a P frame, or a reference B frame is encapsulated into the second video data packet.

Abstract: Disclosed are a biological tissue matrix material, a preparation method therefor and the use thereof in an otological repair material. The biological tissue matrix material comprises an extracellular matrix. The extracellular matrix comprises a collagen fiber, a growth factor and fibronectin. The biological tissue matrix material has a low amount of DNA residue, a low immunogenicity, a high anti-infection ability, and a strong repair capability.

Abstract: The present disclosure discloses a method for preparing 2,5-dimethylphenol by selective catalytic conversion of lignin, relates to the technical field of chemistry, and includes the following steps: mixing lignin, a catalyst, and ethanol, and then carrying out a catalytic conversion reaction of lignin under the gaseous supercritical conditions of ethanol; and cooling the reaction product by quenching after the completion of reaction, and then subjecting it to separation and extraction to obtain 2,5-dimethylphenol. The catalyst comprises a modified sepiolite carrier, an active metal Mo, and auxiliary agents Zr and Fe. The process of the present disclosure is simple, and the prepared catalyst is a solid catalyst, which avoids problems of difficult recovery, serious environmental pollution and equipment corrosion caused by the use of homogeneous organic acid-base catalysts.

Abstract: The disclosure provides a full-color light emitting device and a display module. A light emitting layer, a refractive layer, a spacer layer and a light processing layer are included. The refractive layer is disposed above the light emitting layer, the spacer layer is disposed above the refractive layer, and the light processing layer is disposed above the spacer layer. The light emitting layer includes a first light emitting part, a second light emitting part and a third light emitting part. The light processing layer includes a first light processing part, a second light processing part, and a third light processing part, and a baffle wall is disposed between any two adjacent light processing parts in the first light processing part, the second light processing part and the third light processing part. A light refractive index of the refractive layer is greater than a light refractive index of the spacer layer.

Abstract: Disclosed are a method, an apparatus, and a system for implementing video stream switching. The method can determine switching reference information of a first reference frame trailer packet of a first video stream and switching reference information of a second reference frame trailer packet of a second video stream, when receiving a switching instruction; and switch from the first video stream sent through the target egress port to the second video stream based on the switching reference information of the first switching packet and the switching reference information of the second switching packet. Because locations of data packets sent before and after switching are considered during video stream switching, damage caused by a switching operation to a transmitted video image can be effectively reduced.

Abstract: The present disclosure discloses a method for preparing 2,5-dimethylphenol by selective catalytic conversion of lignin, relates to the technical field of chemistry, and includes the following steps: mixing lignin, a catalyst, and ethanol, and then carrying out a catalytic conversion reaction of lignin under the gaseous supercritical conditions of ethanol; and cooling the reaction product by quenching after the completion of reaction, and then subjecting it to separation and extraction to obtain 2,5-dimethylphenol. The catalyst comprises a modified sepiolite carrier, an active metal Mo, and auxiliary agents Zr and Fe. The process of the present disclosure is simple, and the prepared catalyst is a solid catalyst, which avoids problems of difficult recovery, serious environmental pollution and equipment corrosion caused by the use of homogeneous organic acid-base catalysts.

Abstract: This application provides a light-emitting chip and a light-emitting unit. The light-emitting chip includes light-emitting portions arrayed in n rows and m columns. A surface of the light-emitting chip is provided with n common a-pole electrodes and n×m b-pole electrodes. Each light-emitting portion has an a-pole and a b-pole having an opposite polarity. The b-pole of each light-emitting portion is electrically connected to the b-pole electrode corresponding to the n×m b-pole electrodes, and the a-poles of m light-emitting portions in the ith row are electrically connected to the common a-pole electrode corresponding to the n common a-pole electrodes, where 1?i?n, n?1, m>1, and n, m, and i are integers.

Abstract: The invention discloses a tensioner comprising a belt shaft, a first bracket and a second bracket, a belt shaft hole is provided at a front end of the first bracket, the belt shaft passes through the hole and is hinged with the first bracket; a surface of the belt shaft is provided with a ratchet fixedly connected thereto and gaskets provided on two sides of the ratchet; one end of the second bracket is provided with a clamping portion, the clamping portion clamps two ends of the belt shaft and protrudes outwardly to form an accommodating cavity, balls are provided inside the accommodation cavity, and the balls are installed on an outer gasket of the belt shaft. The plastic gaskets greatly reduce the friction between the ratchet and the bracket, the balls provide a certain degree of freedom for the belt shaft to prevent the belt shaft from jamming.

Abstract: A flow control method and system, and a device are provided to implement flow control in a process of transmitting a media stream between devices. The method includes: receiving, by a first device, a media stream that is sent by a second device at a first rate; instructing based on a rate of a media stream in a first time period in which a buffer usage rises from a first threshold to a second threshold, the second device to send a media stream to the first device at a second rate which is less than the first rate; instructing based on a rate of a media stream in a second time period in which the buffer usage rises from the second threshold to a third threshold, the second device to send a media stream to the first device at a third rate which is not greater than the second rate.