30results about How to "Efficient method" patented technology

This invention discloses a method for preparing and applying a sodium borohydride-modified self-supporting anode for AEM water electrolyzers. Firstly, an amorphous ternary metal hydroxyl oxide precursor is grown in situ on a nickel substrate via room temperature liquid phase deposition. The process involves the presence of Co in solution. 2+ Fe 3+ Ni ions are introduced through slight corrosion of the nickel foam matrix. 2+ The ions, the three, and the OH- produced by hydrolysis ⁻ Co-deposition occurs under the influence of dissolved oxygen, leading to the self-assembly of amorphous nanosheet structures on the substrate surface. Subsequently, a mild chemical reduction treatment with sodium borohydride solution is used to obtain a structurally stable and high-performance self-supporting electrode. The method described in this embodiment is mild, simple, low-cost, and has good versatility.

The invention relates to a yeast gene modified cell containing GDP-fucose synthase polypeptide, which can be applied to synthesis of human milk oligosaccharide, and belongs to the technical field of gene engineering. According to the technical scheme, the yeast gene modified cell contains a heterologous nucleic acid sequence of a GDP-fucose synthase active polypeptide. The synthetase active polypeptide is obtained by modifying at least one site of the 20th site to the 29th site, the 40th site to the 53th site, the 75th site to the 81st site, the 95th site, the 148th site to the 158th site, the 193th site, the 215th site, the 219th site to the 21st site, the 227th site to the 232 site, the 239th site to the 241st site, the 259th site to the 264th site, the 301st site to the 302 site, the 306th site and the 310th site to the 316th site of an amino acid sequence shown in SEQ ID NO: 1. Compared with an original strain, the yeast gene modified cell has higher activity of synthesizing fucosyllactose, and a safe and feasible technical scheme is provided for industrial production of fucosyllactose.

This invention relates to the field of alloy purification technology, specifically to a method, system, and aluminum alloy welding material for preparation of self-purifying aluminum alloy welding material. The method for preparing the self-purifying aluminum alloy welding material includes the following steps: cold pressing a mixture of aluminum alloy powder and refining agent powder to obtain a cold-pressed billet; hot pressing the cold-pressed billet to obtain a hot-pressed aluminum ingot; removing impurities from the surface of the hot-pressed aluminum ingot, followed by preheating to obtain a preheated ingot; and extruding the preheated ingot into wire. This invention uses powder metallurgy to prepare aluminum alloy welding material with self-purifying function, extending the degassing method of aluminum alloy smelting to the aluminum alloy welding process. This relaxes the strict requirements on the hydrogen content of the aluminum alloy base material, achieving a weld with lower hydrogen content. The method is more efficient, more stable, and less expensive.

This invention belongs to the field of agricultural biotechnology, specifically relating to a plant constitutive promoter OsSULTR2;2pro and its applications. The nucleotide sequence of the promoter OsSULTR2;2pro is shown in SEQ ID NO.1. The promoter OsSULTR2;2pro of this invention is an endogenous constitutive promoter for rice, capable of driving efficient and stable expression of target genes in plant callus tissue, roots, stems, leaves during vegetative growth, as well as young panicles and seeds, and can replace existing non-plant-derived promoters. It has significant application value in the field of plant genetic engineering and can effectively reduce the potential safety risks of transgenic plants caused by the introduction of exogenous DNA.

The invention belongs to the field of organic synthesis, and discloses a method for realizing selective synthesis of cyano-substituted isoxazoline and 3H-pyrrole-3-ketone through temperature regulation, which comprises the following steps: by taking alkynyl ketoxime as a raw material, copper trifluoromethanesulfonate as a catalyst and cyanobenzo iodo-oxacyclopentanone (CBX reagent) as a cyanation reagent, reacting at the temperature of 20-50 DEG C under the condition that the temperature is 20-50 DEG C, thereby obtaining the cyano-substituted isoxazoline and 3H-pyrrole-3-ketone with the cyano-substituted isoxazoline and 3H-pyrrole-3-ketone. And carrying out tube sealing reaction in an inert gas atmosphere to obtain the cyano-substituted isoxazoline. When the temperature is increased to 100 DEG C to 120 DEG C, the reaction time is prolonged, and the cyano-substituted 3H-pyrrole-3-ketone is obtained. According to the invention, two different cyano-substituted nitrogen-containing heterocyclic compounds are selectively synthesized through temperature regulation and control and free radical cascade reaction of different paths. The reaction catalyst is less in dosage, the substrate is wide in application range, the operation is simple, and the method is efficient.

The application discloses a proteinase and coding gene and application for improving the resistance of potato to late blight, and belongs to the technical field of genetic engineering and plant disease-resistant breeding. The amino acid sequence of the proteinase StRD21 is shown as SEQ ID NO. 2, or a derivative sequence with the same disease-resistant function. The nucleotide sequence of the coding gene is shown as SEQ ID NO. 1. The application further provides a specific primer pair for cloning the gene, a potato recombinant overexpression vector containing the gene and a transgenic host cell. By introducing the StRD21 gene into potato and making the StRD21 gene overexpress, the resistance of potato to late blight can be significantly enhanced. The application provides an effective gene resource and a biotechnological means for cultivating a new variety of disease-resistant potato.

The invention discloses a circular hole detection and binocular matching method considering peripheral features. Comprising the following steps: constructing a three-dimensional part model according to structure parameters of a to-be-detected part, and constructing a data set through a rendering method by utilizing the three-dimensional part model; constructing a circular hole detection and binocular matching model, and training by using the data set to obtain a trained circular hole detection and binocular matching model; the circular hole detection and binocular matching model comprises a feature extraction backbone network, a feature encoder, two parallel feature decoders and a feature segmentation module, and the two feature decoders are respectively a detection decoder and a matching decoder; and acquiring an actual binocular image of a to-be-detected part, and inputting the actual binocular image into the trained round hole detection and binocular matching model to obtain a round hole detection result. According to the method, the position relation between the circular holes and peripheral features such as the environment can be effectively utilized, and the accuracy and robustness of binocular matching and segmentation in a complex scene are improved.

This invention provides a road network-level pavement technical condition detection path planning method, comprising: determining the current mileage marker coordinates corresponding to the road network to be detected based on the number of detection vehicles; determining all detection road segments corresponding to the current mileage marker coordinates based on the current mileage marker coordinates; determining recommended detection road segments from all detection road segments; traversing all remaining mileage marker coordinates, and determining the planned path corresponding to the road network to be detected based on the recommended detection road segments. The road network-level pavement technical condition detection path planning method provided by this invention divides the road network to be detected into several detection road segments with mileage marker coordinates as nodes, and uses these detection road segments as basic traversal units to traverse all detection road segments, ultimately determining the final planned path. This method avoids the drawback of detection vehicles traversing numerous backtracks, reducing detection time and labor costs; furthermore, this method is more scientific and efficient.

This disclosure relates to user interfaces for audio media controls. A method includes displaying a first media information affordance representing a first media item in response to detecting an indication that a physical proximity between an electronic device and an external device satisfies a proximity condition. The electronic device receives a first input representing a selection of the first media information affordance. In response to receiving the first input: in accordance with a determination that the first input is of a first type of input, initiating a process to play back the first media item; and in accordance with a determination that the first input is of a second type of input that is different from the first type of input, displaying a second media information affordance representing the first media item.

This invention discloses an immune cell with enhanced anti-tumor effect, its preparation method, and its application. Experiments using this invention show that... SERTAD1 CD8 gene overexpression + T cells can enhance their function in anti-tumor immunotherapy. SERTAD1 Gene overexpression can downregulate CD8 + The expression of immune checkpoint molecules on T cells upregulates the expression of mRNAs of tumor-killing cytokines. In the MC38-OVA subcutaneous tumor model, Naïve CD8 cells were extracted from OT-I mice. + T cells were infected with a virus to overexpress SERTAD1, followed by adoptive transfer to mice. The results showed that SERTAD1 overexpression enhanced CD8 expression. + T cells kill MC38-OVA cells, inhibit the growth of MC38-OVA tumor cells, and overexpress SERTAD1 CD8. + The tumor volume and weight in the T-cell adoptive group were significantly smaller than those in the control group.

The application discloses a star map blind restoration method when star points are in elliptic arc trajectories under compound motion with three-axis angular velocities all being non-zero, which comprises the following steps: S1, elliptic fitting is performed on the elliptic arc trajectories of the star points; S2, elliptic arc trajectory and circular arc trajectory transformation based on projection transformation is performed; S3, circular arc trajectory and straight line segment trajectory transformation based on polar coordinate transformation is performed; S4, straight line segment trajectory restoration based on motion blurred image blind restoration is performed; S5, coordinate inverse transformation and projection inverse transformation are performed to obtain the final restoration result of the star map with the original trajectory being the elliptic arc trajectory. The application realizes the star map blind restoration of the elliptic arc trajectory by transforming the elliptic arc trajectory into the circular arc trajectory through the projection transformation, transforming the circular arc trajectory into the straight line segment trajectory through the polar coordinate transformation, and then realizing the star map restoration of the elliptic arc trajectory through the straight line segment restoration and the coordinate inverse transformation.

This invention provides a medical image analysis method and system based on multi-agent visual-language debate, relating to the fields of artificial intelligence and medical information technology. The method first utilizes multiple prompt-driven multimodal large-scale intelligent agents to independently generate multiple different initial image descriptions. Then, through an iterative debate process with structured memory coordinated by a large language model, these initial image descriptions are cross-validated and fused to suppress illusions, strengthen consensus, and ultimately extract high-quality consensus-based semantic descriptions. Finally, through a learnable multi-level visual-semantic fusion analysis model, this semantic description is dynamically injected into the visual feature extraction process, guiding the model to focus on key features, thereby improving the accuracy and robustness of image analysis. This method does not require task fine-tuning of the multimodal large-scale model, avoids dependence on labeled data, and has a high degree of automation and task versatility.

This invention discloses an air separation system and method for co-producing hydrogen, belonging to the field of air separation and hydrogen production technology. It includes four oxygen-permeable membrane reactors and two condensers. The oxygen-producing outlet of the fourth oxygen-permeable membrane reactor (R4) is connected to the second condenser (C2), which has a condensate drain outlet and an oxygen outlet. The nitrogen-producing inlet of the third oxygen-permeable membrane reactor (R3) is connected to the air-producing outlet of the fourth oxygen-permeable membrane reactor (R4). The fuel-producing inlet of the second oxygen-permeable membrane reactor (R2) is connected to the fuel-producing outlet of the third oxygen-permeable membrane reactor (R3). The fuel-producing inlet of the first oxygen-permeable membrane reactor (R1) is connected to both the fuel-producing outlet and the hydrogen-producing outlet of the second oxygen-permeable membrane reactor (R2), and the hydrogen-producing outlet of the first oxygen-permeable membrane reactor (R1) is connected to the first condenser (C1), which has a condensate drain outlet and a hydrogen outlet. This invention simultaneously produces hydrogen, oxygen, and nitrogen through a reasonable process arrangement. The method is simple, efficient, and highly economical and practical.

The invention discloses a three-dimensional scene multi-granularity semantic segmentation method based on a graph neural network model, and belongs to the technical field of computer vision image processing. Taking a three-dimensional model corresponding to the three-dimensional scene as input, and selecting different visual angles to render the three-dimensional model to obtain a plurality of two-dimensional images; segmenting the two-dimensional image obtained by rendering to obtain a two-dimensional segmentation tree containing all semantic components with different granularities under different visual angles; and constructing a three-dimensional scene multi-granularity semantic segmentation map neural network model based on the two-dimensional segmentation trees under different visual angles, and performing model optimization, thereby obtaining a three-dimensional segmentation tree containing all semantic components with different granularities. By the adoption of the method, a three-dimensional data set is not needed, the three-dimensional segmentation mask is directly obtained through an existing two-dimensional image segmentation model, and the method is efficient, feasible, low in implementation cost and high in performance.

The application discloses a method for photo-induced nitro reduction hydrogenation, and belongs to the field of medical compound synthesis.The method provided by the application takes iron trichloride and palladium-carbon as the catalysts of main reactions, and realizes nitro reduction into amino under the conditions of normal temperature, normal pressure and nitrogen, the reaction has high catalytic efficiency and fast reaction rate, the reaction time is only 10 minutes, the yield of the product obtained by nitro reduction is high, the experimental cost is greatly reduced, the method is suitable for the synthesis and amplification of later-stage compounds, the method has simple steps, wide substrate application range, and the effects of high efficiency, green environmental protection, safety and cost saving, and the reaction has fast reaction rate, and has excellent application prospect in industrial production.

This invention provides a method for creating rice materials that can block the transmission of rice stripe virus by planthoppers, belonging to the field of agricultural science and technology. Based on the characteristic that the rice stripe virus (RSV) glycoprotein NSvc2-N mediates viral infection of the planthopper midgut, NSvc2-N is selected from this glycoprotein. S (720 bp, encoding the soluble region of NSvc2-N, i.e., amino acids 30-268), was integrated into the rice genome using transgenic technology. The resulting transgenic rice plants significantly reduced the virus acquisition rate, virus content in the insects, and virus transmission rate of planthoppers, demonstrating that the NSvc2-N expressed in the transgenic plants... S The protein can competitively bind to the viral infection site located in the midgut of the planthopper, thereby blocking the planthopper from transmitting the virus. This method fills the gap in technology that uses the plant itself to block the planthopper from transmitting the virus. Compared with traditional "insect control and disease prevention" methods, this method is simple, economical, green, and efficient, and can be applied to antiviral breeding, disease control research, and research on the mechanism of insect virus transmission.

The application discloses a method for introducing a heterogenization constraint in scene graph generation, which introduces a heterogenization constraint in the process of generating a scene graph through a heterogenization model, uses visual features of scene objects as object representations, discovers potential relationships of the objects by link prediction, generates mixed relationship features between the objects through a graph neural network, and uses gradient reversal confusion to weaken the relevance of the mixed relationship features and the object representations, so as to ensure the heterogeneity of the two; subsequently, the mixed relationship features are reconstructed by using an automatic encoder module, and finally, the reconstructed mixed relationship features are modeled, so that the relationship labels with heterogeneity are transmitted to the scene graph generation, and are used for generating a heterogenized scene graph. The application successfully ensures the heterogeneity of the generated scene graph by explicitly decoupling the relevance of the object feature space and the relationship feature space in the training process of a traditional scene graph generation method.

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A user equipment (UE) receives and stores a candidate cell configuration including an execution condition of a conditional cell handover to a candidate cell. Upon determining that the execution condition is satisfied, the UE selects a candidate cell as a target cell for conditional cell handover. The UE determines whether a valid timing advance (TA) and a valid uplink (UL) grant for an initial uplink (UL) transmission to a target cell are available. When the valid TA and the valid UL grant are available, the UE transmits an initial UL transmission to the target cell using the valid TA and the valid UL grant. When the valid TA is not available, the UE performs a random access procedure on the target cell. When the valid UL grant is unavailable, the UE sends a scheduling request to the target cell.

This invention provides a method and system for producing cyclohexyl hydrogen peroxide by cyclohexane oxidation. The method includes the following steps: reacting cyclohexane with an oxygen-containing gas containing CO2 to obtain a material containing cyclohexyl hydrogen peroxide. The method of this invention improves the yield and selectivity of cyclohexyl hydrogen peroxide by reacting the feed cyclohexane with an oxygen-containing gas containing CO2, reduces production costs, requires less equipment investment, and has a simple operation process. It can be used in the continuous industrial production of cyclohexane to cyclohexyl hydrogen peroxide via air oxidation.

A method for alleviating hydrogen sulfide poisoning in zebrafish juveniles using exogenous nitric oxide includes the following steps: Step 1: Determining the median lethal concentration of hydrogen sulfide for zebrafish juveniles; Step 2: Determining the safe concentration range of exogenous nitric oxide and the applicable concentration for effectively alleviating hydrogen sulfide toxicity. This invention provides a method for alleviating hydrogen sulfide poisoning in zebrafish in aquatic ecological pollution. 2 This method for treating H poisoning is rapid, effective, inexpensive, safe, and harmless, making it suitable for widespread application. It can be used as research material in the field of environmental monitoring and also for clinical treatment of H poisoning. 2 Drug screening and evaluation model for S poisoning.

The invention relates to the technical field of microorganisms, in particular to a microbacterium strain and application thereof in catalyzing 4-HBC to produce 1, 4-HBC. The invention provides a Microbacterium sp. SYP-GBC-2025, which is preserved in the General Microbiological Center of the China Committee for Culture Collection of Microorganisms, and the preservation number is CGMCC No.34395. The invention also provides a preparation method of the Microbacterium sp. The strain can catalyze 4-HBC dehydrogenation to produce 1, 4-HBC, and has the advantages of strong specificity, high conversion efficiency, low production cost, environmental friendliness and the like. Based on the strain, the invention provides a production method of 1, 4-HBC, and the method has the advantages of high efficiency, specificity and low cost, can be used for industrial production of 1, 4-HBC, and provides a key technical support for green synthesis of steroid drug intermediates.

This invention discloses a bamboo fiber, its preparation method, and a bamboo fiber wound hydrogen storage tank. The preparation method of the bamboo fiber includes the following steps: cutting natural bamboo into equal-length bamboo poles and pretreating them by soaking them in boiling water to remove water-soluble organic matter; mixing hydrogen peroxide, organic acid, and H2SO4 in a certain proportion to prepare a peroxyacid solution, wherein the concentration of hydrogen peroxide in the peroxyacid solution is 7-24 wt%, the concentration of organic acid is 15-55 wt%, and the concentration of H2SO4 is 0.5-3 wt%; soaking the pretreated bamboo poles in the peroxyacid solution at 50-60℃ for 12-20 hours to obtain bamboo fiber; then soaking the bamboo fiber in an alkaline solution for neutralization, and washing it after neutralization; vacuum drying the washed bamboo fiber and twisting it to extend its length to obtain long fiber; and applying microwave irradiation to the long fiber to obtain the final product.

The invention discloses an under-sampling method based on energy diffusion and potential distribution, and belongs to the technical field of data processing, and the method comprises the steps: constructing a sphere neighborhood for each sample in an input unbalanced data set, calculating the potential of each sample based on the sphere neighborhood of each sample, and carrying out the bilateral filtering processing, and obtaining a denoised data set; calculating the potential of the residual majority class samples in the majority class sample set in the denoised data set, iteratively deleting the redundant majority class sample with the highest potential value until the majority class sample data and the minority class sample number are balanced, and outputting a balanced data set; according to the undersampling method based on energy diffusion and potential distribution, the performance of the classifier is remarkably improved, and meanwhile original data distribution is kept to the maximum extent.

The application belongs to the technical field of computer vision and automatic driving perception, and specifically discloses a multi-modal test time adaptive three-dimensional semantic segmentation method and system based on reliable space-time voxels. The application performs online adaptive segmentation on continuous two-dimensional images and three-dimensional point clouds of a target domain without accessing source domain data. A space-time voxel is constructed through a sliding time window, and the voxel prediction reliability is evaluated by using space-time entropy to screen out unreliable voxels. Cross-modal attention weights are assigned based on the space-time entropy, a weighted cross-modal consistency loss is constructed, and model online optimization is completed in combination with point-level pseudo labels. The application effectively suppresses single-frame prediction timing jitter, improves cross-modal learning robustness, has low computing cost and strong real-time performance. Experiments show that the application is superior to existing methods in cross-territory, cross-sensor, virtual-real domain offset benchmarks, and the performance is significantly improved in strong domain offset scenarios, and the application is suitable for real-time perception scenarios such as automatic driving and robot navigation.

The application discloses a method for preparing a protein-polyphenol covalent compound. The method comprises the following steps: firstly, treating a protein solution or suspension by using low-temperature plasma; then, adding polyphenol into the treated protein solution and fully reacting; then, dialyzing the mixed solution of the fully reacted polyphenol and protein to remove polyphenol which is not combined with the protein; and finally, obtaining the protein-polyphenol covalent compound by freeze-drying. The method does not add any substance in the whole process, avoids polyphenol oxidation, and can quickly and efficiently prepare the protein-polyphenol covalent compound.

This invention is entitled "User Interface for Stored-Value Accounts." This disclosure relates to a computer user interface. In some examples, an account is configured on an electronic device. In some examples, the device receives a value to provide funds to an account configured on the electronic device. In some examples, the electronic device uses the configured account to transact with a contactless transaction terminal and displays instructions for the transaction. In some examples, the electronic device transmits information corresponding to the configured account without checking authentication. In some examples, the device receives user input initiating a process to move an account from a first device to a second device. In some examples, the device receives account payment credentials from a second device when a set of payment criteria is met.

The present invention provides a production method for purified dichloroacetic acid and an efficient production method for a nucleic acid molecule using the same. Specifically, the present invention provides a production method for purified dichloroacetic acid having a molar ratio of formaldehyde to dichloroacetic acid of 81 × 10-5 or less and a molar ratio of dichloroacetic anhydride to dichloroacetic acid of 20 × 10-5 or less, the method including: bringing dichloroacetic acid having both or one of formaldehyde content and dichloroacetic anhydride content exceeding the ratio(s), into contact with at least one compound having a boiling point lower than that of dichloroacetic acid selected from the group consisting of aliphatic alcohols, aliphatic amines, and water, and, in the coexistence of an aprotic inert solvent having a boiling point lower than that of dichloroacetic acid, distilling off a fraction containing the solvent from the resulting mixed liquid, and a production method for a nucleic acid molecule using the purified dichloroacetic acid as a deprotecting agent.

The application provides an antibacterial agent containing an extract of Aquilaria sinensis leaves for inhibiting Vibrio alginolyticus and an application thereof, and relates to the field of plant extracts. The antibacterial agent is the extract of Aquilaria sinensis leaves; the extract of Aquilaria sinensis leaves is prepared by crushing Aquilaria sinensis leaves with water, the ratio of the Aquilaria sinensis leaves to water is 1g:2-4mL, and the extract of Aquilaria sinensis leaves is used for inhibiting Vibrio alginolyticus. The preparation method of the extract of Aquilaria sinensis leaves comprises the following steps: taking Aquilaria sinensis leaves, adding water, crushing into a homogenate, filtering impurities, centrifuging, collecting supernatant, sterilizing, and obtaining the extract of Aquilaria sinensis leaves. The minimum inhibitory concentration of the extract of Aquilaria sinensis leaves prepared in the application for Vibrio alginolyticus is 15.63mg / ml. The extract of Aquilaria sinensis leaves prepared in the application can better inhibit Vibrio alginolyticus, is used for preparing the antibacterial agent for inhibiting Vibrio alginolyticus, avoids the generation of the risk of drug resistance genes, has no risk of organic solvent residue, and has many advantages such as high efficiency, reduced risk and reduced cost.

The invention discloses a preparation method of molybdenum blue, and belongs to the technical field of vacuum metallurgy, a molybdenum source is placed in a corundum crucible, a vacuum furnace is used for vacuum roasting, and molybdenum blue with different oxygen vacancy contents is obtained by regulating and controlling temperature, heat preservation time and a condensation circulation path; according to the method, the characteristic that molybdenum trioxide is volatile is utilized, lattice oxygen in molybdenum oxide is separated under the vacuum condition, oxygen vacancies are formed, lattice distortion is generated, and the content of the oxygen vacancies in molybdenum blue can be regulated and controlled by controlling the temperature, the heat preservation time and the condensation circulation path in the process; according to the method, one-step synthesis of the molybdenum blue with the quantitative oxygen vacancy from the complex molybdenum calcine is achieved, the method is also applicable to pure MoO3, accurate temperature regulation and control are not needed, the process is simplified, the influence of extra ion doping is avoided, and a new thought for synthesizing the molybdenum blue with the oxygen vacancy is provided.