15 results about "Product formation" patented technology

This invention discloses a closed-loop autonomous optimization system and method for chemical synthesis based on in-situ spectral feedback. The system includes a reaction execution module, an in-situ spectral detection module, an AI real-time analysis module, a dynamic intervention control module, and an automatic convergence optimization module. The invention utilizes the AI ​​real-time analysis module to perform real-time inference and trend prediction on in-situ spectral data, enabling the dynamic intervention control module to automatically execute multi-parameter synergistic intervention before or at the early stage of abnormal by-product formation, effectively suppressing side reactions and significantly improving the yield of the target product. By incorporating temperature, dropping rate, and stirring rate into a unified intervention logic, the intervention effect of multi-parameter synergistic adjustment is superior to that of single-parameter adjustment. The automatic convergence optimization module employs Bayesian optimization or reinforcement learning algorithms to iteratively optimize multiple batches of parallel experimental data, thereby enabling the system to possess cross-batch self-learning capabilities and achieving an intelligent upgrade from passive execution to active optimization.

A process for ring hydrogenation of dialkyl terephthalates having C3- to C16-alkyl groups can be performed in a hydrogenation unit composed of two reaction units in series. In the process, a suitable process parameter in relation to the first reaction unit is adjusted so that a certain reaction conversion is achieved.

The invention discloses a precursor treatment method for preparing a boron nitride film, and belongs to the field of two-dimensional material preparation. The precursor treatment method for preparing the boron nitride film comprises the following steps: heating ammonia borane powder in a hydrogen atmosphere at 120-140 DEG C to obtain ammonia borane with a stalactite-shaped structure. By regulating and controlling the structure and release behavior of ammonia borane, stable supply of a growth source is achieved, generation of by-products is inhibited, the film quality is improved, and the method is suitable for large-scale integrated preparation of device-level two-dimensional materials.

The invention relates to a thermal reactor arrangement and a corresponding method of operation, designed for high-temperature chemical reactions such as the synthesis of nitrogen oxides (NOx). The reactor incorporates a plasma chamber and a downstream expansion chamber configured to facilitate controlled reaction dynamics, efficient product formation, and rapid quenching of reactive gases.

The present disclosure relates to methods of using purine nucleosidase and / or AMP phosphorylase for increasing product formation in enzymatic reactions that generate reaction product nucleoside-5'-monophosphate (NMP), particularly AMP.

The present disclosure relates to a process for the preparation of 1,3-dihydroxy benzene. The process of the present disclosure employs suitable catalysts, reagents, and purification strategies to achieve high selectivity, enhanced yield, and superior product selectivity. The process is robust, reproducible, and readily scalable, making it industrially attractive for the commercial manufacture of 1,3-dihydroxy benzene from benzene, with reduced by-product formation and improved operational efficiency.

To monitor the condition of the processed product (11) produced from the starting workpiece (2) by separating a plate-type starting workpiece (2), particularly sheet metal, as part of a continuous manufacturing process, the condition of the processed product (11) is recorded midway through the manufacturing process before the separation of the starting workpiece (2), the actual state of at least one parameter of the condition of the starting workpiece (2) is detected on the starting workpiece (2) before the separation of the starting workpiece (2), and the actual state of the parameter of the condition of the starting workpiece (2) detected for this region is assigned as the actual state of the parameter of the condition of the processed product (11) to the product-forming region of the starting workpiece (2) that forms the processed product (11) after the separation of the starting workpiece (2). The monitoring methods described above are performed as part of a method for controlling a continuous manufacturing process and as part of a manufacturing process for separating plate-type workpieces, particularly sheet metal. A mechanical assembly (1) for separating plate-type workpieces, particularly sheet metal, is designed to perform the manufacturing process described above. The computer program includes control commands for controlling the machine assembly (1) during the execution of a continuous manufacturing process.

The invention relates to a device (10) configured and adapted to convey and separate and / or correct the position of products, comprising: a conveying device (12) having a rotationally driven transfer element (13) configured and adapted to convey at least one product stream formed from a plurality of products in a conveying direction T in a conveying plane E; at least one detection mechanism (14) for detecting the plurality of products on the conveying element (13); at least one handling device (15) configured and adapted to correct the position of the plurality of products on the conveying element (13) and / or to separate individual products in the conveying plane E, the at least one handling device (15) configured and adapted to establish an operative connection with the plurality of products, the conveying element (13) has a conveying plane E and holds the plurality of products on the advancing conveying element (13) perpendicularly to the conveying plane E from above towards the conveying plane E in a movable manner, and corrects the position of the plurality of products and / or separates the plurality of products only in the conveying plane E of the conveying element (13) transversely to the conveying direction T in a linearly movable manner; and a control device (16) configured and adapted to control the at least one handling device (15) on the basis of data from the detection means (14), characterized in that the control device (16) comprises a program module (17) programmed to control the at least one handling device (15) on the basis of data from the detection means (14). Generating a virtual image (100) of the transport element (13) on which the plurality of products lie, at least in the extent of each product on the transport element (13) in the transport plane E and the coordinates of the plurality of products on the transport element (13), when the conveying device (13) is continuously driven, at least one movement path for collision-free separation and / or correction of the positions of the plurality of products is determined. The invention also relates to a corresponding method.

This invention provides a ferromagnetic material, its preparation method, and its applications. The ferromagnetic material of this invention comprises Fe. 1+x Te, where 0.4 ≤ x ≤ 0.8, and the Curie temperature Tc of the ferromagnetic material is 273 K ~ 310 K. The preparation method of the ferromagnetic material of the present invention includes the following steps: using chemical vapor transport, a vacuum-sealed quartz tube containing Fe powder, GaTe powder, Te powder and a transport agent is heated to obtain Fe... 1+x Te, 0.4≤x≤0.8; wherein, the molar ratio of Fe powder, GaTe powder, and Te powder is (2.5~3.5):(0.5~1.5):1; the heat treatment includes: the heating temperature of the raw material zone is 825~875℃, and the heating temperature of the product formation zone is 725~775℃. The ferromagnetic material of the present invention has a Curie temperature above room temperature, the preparation method is simple, and it has broad application prospects in the field of spintronics.

Disclosed herein are genetically engineered Kluyveromyces marxianus cells capable of producing D-allulose with reduced allitol by-product formation. The engineered cell may comprise a deletion or disruption of a native allitol dehydrogenase gene; an exogenous polynucleotide sequence encoding an allulose-6-phosphate 3-epimerase enzyme at least 70%, at least 80%, at least 85%, at least 90%, at least 95%, at least 97%, at least 99%, or 100% identical to at least one of SEQ ID NOs:249-256, 258, and 259; and an exogenous polynucleotide sequence encoding an allulose-6-phosphate phosphatase enzyme at least 70%, at least 80%, at least 85%, at least 90%, at least 95%, at least 97%, at least 99%, or 100% identical to at least one of SEQ ID NOs:87, 89, 190, 123, 105, 107, 115, 83, 95, 113, 117, 119, 121, 127, 131, 137, 145, 169, 173, 179, and 183.

The laminated sheet feeding device comprises a rack and a plurality of material receiving seats, and further comprises a tray which is arranged on the rack and used for placing the material receiving seats and laminated sheet feeding mechanisms which are at least arranged on one side of a material placing mechanism. The lamination feeding device has the advantages that the lamination feeding mechanism of the whole lamination feeding device is simple and compact in structure, not only can the product A and the product B be stacked, but also the stacked finished products can be conveyed and transferred into the material receiving seat, and the lamination feeding device has the effects of being high in integration level and smooth in step connection. The conveying assembly achieves backflow of the first carrying seats through the annular grooves, it is guaranteed that the first carrying seats sequentially receive the products A and the products B to form finished products, it can also be guaranteed that the first carrying seats with the transferred finished products flow back to the material receiving position again, circulation is achieved, and efficient lamination is facilitated.

The invention relates to a urinary stent, a blister box and a product forming process, the urinary stent comprises a stent body, the stent body comprises a first molding body and a second molding body, the first molding body is integrally arranged on the second molding body, and the first molding body and the second molding body are each in a circular truncated cone shape; the taper of the first molding body ranges from 1 degree to 10 degrees, and the taper of the second molding body ranges from 30 degrees to 50 degrees; a first molding cavity is formed in the first molding body, and first meshes communicated with the first molding cavity are formed in the peripheral side wall of the first molding body; a second molding cavity communicated with the first molding cavity is formed in the second molding body, and second meshes communicated with the second molding cavity are formed in the peripheral side wall of the second molding body. The application has the effect of reducing urinary incontinence complications.

This application relates to the technical fields of fine chemicals and organic synthesis, and in particular to a microchannel continuous flow process for producing sunflower seed musk. The process includes: mixing 3-methoxy-4-tert-butyltoluene with acetic anhydride to prepare feedstock solution A; reacting acetic anhydride with nitric acid at low temperature to obtain nitrating reagent solution B; pumping A and B into a microchannel reactor for continuous nitration at -8 to 0°C, controlling the residence time to 1.5 to 3 minutes, and introducing the tail gas into an alkaline solution for absorption; quenching the reaction solution with ice water, separation, and drying to obtain the finished product. This application utilizes the efficient mass and heat transfer characteristics of the microchannel reactor to significantly shorten the reaction time, reduce the risk of thermal runaway during nitration, and effectively reduce by-product formation and improve yield and purity through precise control of the feed ratio and temperature, achieving inherent safety and automation in the production process.

This invention provides a control method for a flexible packaging product packing equipment, comprising the following steps: controlling a product transfer mechanism to transfer a group of products to a feeding mechanism each time, stacking them on a storage box of the feeding mechanism, with each group of products forming a layer; when m groups of products are stacked to form m layers, controlling a partition conveying mechanism to transfer a set number of partitions to the product transfer mechanism, the product transfer mechanism transferring the (m+1)th group of products and partitions to the storage box of the feeding mechanism to stack them to form the (m+1)th layer; when n groups of products are stacked to form n layers, controlling a parts placement mechanism to place a set number of parts on the (n+1)th group of products, the product transfer mechanism transferring the (n+1)th group of products and parts to the storage box of the feeding mechanism to stack them to form the (n+1)th layer; when the products in the storage box are stacked to a set number of layers, the feeding mechanism transfers the storage box to unload. This invention integrates product conveying, synchronous partition placement, and synchronous parts placement into the same flexible packaging product packing equipment, achieving full automation.

The invention belongs to the technical field of biological enzymes, and particularly relates to a glycosyl transferase mutant for synthesizing rebaudioside D as well as a preparation method, a product and application of the glycosyl transferase mutant. The glycosyltransferase mutant comprises at least one substitution mutation selected from the following positions on the basis of an amino acid sequence as shown in SEQ ID NO: 1: the 158th amino acid is mutated from S to F or the 93rd amino acid is mutated from H to Q. The mutant can efficiently catalyze a conversion reaction from RebA to RebD, so that the reaction process is greatly accelerated, and the generation rate and yield of a product are improved. The achievement effectively overcomes the ubiquitous problems of low activity, low reaction efficiency, insufficient stability and the like when glycosyl transferase catalyzes the reaction in the prior art, provides powerful technical support for industrial efficient synthesis of RebD, and has important practical application value.