Abstract: In one aspect, the invention relates to an immunogenic composition comprising modified O-polysaccharide molecules derived from E. coli lipopolysaccharides and conjugates thereof. Multivalent vaccines may be prepared by combining two or more monovalent immunogenic compositions for different E. coli serotypes. In one embodiment, the modified O-polysaccharide molecules are produced by a recombinant bacterium that includes a wzz gene.

Abstract: A method for binocular depth estimation is provided, including: obtaining binocular images and performing feature extraction on the binocular images to obtain left and right feature mappings; performing disparity construction by using the left and right feature mappings to obtain a disparity cost volume with a reduced dimension; performing attention feature learning on the disparity cost volume to obtain an attention feature vector and performing feature weighting on the disparity cost volume by using the attention feature vector to obtain a weighted cost volume; performing disparity regression on the weighted cost volume based on a two-dimensional convolution to obtain a prediction disparity map; and performing disparity depth conversion on the prediction disparity map to obtain a depth map of the binocular images.

Abstract: A toner cartridge detachably installed in an electronic imaging device is provided. The electronic imaging device includes a developer replenishing device that includes a developer receiving component and the developer receiving component includes a movable connection component and a receiving port. The toner cartridge includes a cartridge body used for storing developer and a toner discharge structure connected to a toner discharge end of the cartridge body for discharging the developer from the toner cartridge. The toner discharge structure includes a fixed toner discharge plate, a guide component and a toner outlet. The guide component has a first end component and a second end component. The toner discharge structure further includes a holding component. When the toner cartridge is installed in the electronic imaging device, the connection component moves from the guide component to the holding component relative to the guide component.

Abstract: A waterproof core column assembly includes a sealed support, a guide wire and light bars, where two filament channels penetrating through a top surface and a bottom surface are vertically arranged in the sealed support, the guide wire penetrates through the filament channels, a plurality of light bars are connected by the guide wire and are all located below the sealed support, and a plurality of resistors or current regulative diodes are integrated in the light bars. The waterproof core column assembly integrates a plurality of resistors or current regulative diodes in the light bars besides the light source and the rectifier bridge, which can transfer the resistors from the upper part of the sealed support to the lower part of the sealed support and enclose them in a lamp cap, so as to fundamentally prevent the connection point between the resistors and the guide wire from being exposed.

Abstract: A waterproof core column assembly includes a sealed support, a guide wire and light bars, where two filament channels penetrating through a top surface and a bottom surface are vertically arranged in the sealed support, the guide wire penetrates through the filament channels, a plurality of light bars are connected by the guide wire and are all located below the sealed support, and a plurality of resistors or current regulative diodes are integrated in the light bars. The waterproof core column assembly integrates a plurality of resistors or current regulative diodes in the light bars besides the light source and the rectifier bridge, which can transfer the resistors from the upper part of the sealed support to the lower part of the sealed support and enclose them in a lamp cap, so as to fundamentally prevent the connection point between the resistors and the guide wire from being exposed.

Abstract: The present disclosure relates to a text compression method, module, chip, electronic device and storage medium, wherein the method comprises: performing word segmentation processing on texts to be compressed, and collecting statistics about word length and word frequency of the words obtained after the word segmentation processing to construct a corresponding keyword list; compressing the texts to be compressed based on the constructed keyword list. The above scheme is beneficial to improve the compression ratio of text compression.

Abstract: The invention discloses a kernel stack distribution method and device, and relates to the technical field of computers. According to the method and the device for allocating the kernel stack, the memory is allocated according to the required allocation mode. When the stack pointer of the thread overflows the page boundary in the address space, a page-missing exception is generated. A new storage page is distributed to the kernel stack in a page-missing exception processing program, and the new storage page is mapped to a target address space pointed by the kernel stack, so that the memory consumption of the kernel stack of the thread is greatly optimized, and the capability of detecting the kernel stack underflow exception is improved. A virtual address space is divided in advance for a thread kernel stack to use, so that the problem of memory fragmentation is effectively avoided.