3results about How to "Uncontrollable solution" patented technology

The application discloses an antibacterial bio-based polyamide elastomer and a preparation method thereof. The preparation method comprises the following steps: preparing a polyamide prepolymer containing a tertiary amine structure through ring-opening polymerization reaction of caprolactam, N-diethyl-aminocaprolactam and sebacic acid, then reacting with polytetramethylene ether glycol to form a polyamide-polyether block copolymer elastomer, and further modifying the polyamide-polyether block copolymer elastomer through reaction with a halogenated hydrocarbon to realize quaternary ammonium modification, so that the quaternary ammonium salt antibacterial group is stably introduced into the polymer molecular structure in a covalent manner. The bio-based polyamide elastomer prepared by the application has excellent elastic properties and persistent and stable quaternary ammonium antibacterial properties, the antibacterial components are not easy to migrate and lose, the preparation process is simple and controllable, is suitable for the field of functional materials, and has a good application prospect.

The utility model discloses a distillation and purification device for triethyl orthoformate. Comprising a bottom plate, a bearing block fixedly connected to the upper end of the bottom plate, a distillation still fixedly connected to the upper end of the bearing block, a groove body formed in the peripheral wall of the distillation still in a penetrating mode, a sliding door hinged to the inner wall of the groove body, a feeding assembly arranged on the peripheral wall of the distillation still, a steam output assembly arranged at the upper end of the distillation still and a discharging assembly arranged at the lower end of the distillation still. The first bearing ring is fixedly connected to the middle part of the inner wall of the distillation kettle; the movable ring is placed at the upper end of the first bearing ring; the fixed cylinder is arranged on the inner wall of the movable ring in a sliding manner; the separation cylinder is fixedly connected to the lower end of the movable ring; the guide cylinder is fixedly connected to the upper end of the fixed cylinder; the air guide assembly is arranged at the upper part of the inner wall of the distillation kettle. The utility model has the advantages that the internal airflow can be actively guided and adjusted, the mass and heat transfer efficiency is high, and the cleaning and maintenance are convenient.

The invention relates to an image generation method and device, and the method comprises the steps: carrying out the training of a VAE (variational auto-encoder) model, and enabling the VAE model to be used for encoding an input image into a potential vector in a potential space, and decoding and reconstructing the potential vector into an image; in the training process of the VAE model, constructing and maintaining a group of learnable cluster centers; in each training iteration, according to the distance from the current potential vector to each cluster center, distributing the potential vector to the corresponding cluster, and updating the position of the cluster center based on the obtained distribution result; a total loss function used for updating VAE model parameters is calculated, and after training is completed, a VAE model with a structured potential space is obtained; and sampling potential vectors near the cluster center corresponding to the target category, and decoding by using a decoder of the VAE model to generate an image belonging to the target category. Therefore, the problem that the category of the image generated by the traditional VAE is uncontrollable can be fundamentally solved.