18 results about "Structural transformation" patented technology

The invention provides a method for preferably selecting a shale gas structure storage favorable area not based on formation pressure. The method comprises the steps that a target research area is selected, and a core exploration target layer series is determined; on the basis of a target stratum shale gas preservation mechanism, core parameters independent of stratum pressure data are screened, and a comprehensive evaluation index system containing target stratum self-sealing performance, regional cover stratum conditions and structural transformation action parameters is constructed; spatial distribution analysis is carried out on each parameter, grading is carried out according to geological laws and adjacent region experience, and weight coefficients are distributed according to the influence degree of the parameters on storage conditions; obtaining a comprehensive score of the structure storage condition of each evaluation unit through grade assignment and weighted stacking calculation; and delineating a shale gas structure storage favorable area according to the comprehensive score. The method is suitable for low-exploration-degree areas with complex structures, sparse drilling wells or lack of formation pressure data, and has the advantages of objective evaluation, high operability and high practical value.

The invention discloses a database row and column synchronization method and device, equipment and a medium. The method comprises the steps that data updating information of a first structure database is obtained and analyzed, at least one first updating data set of a first structure is obtained, structure conversion is conducted on all the first updating data sets, and a second updating data set of a second structure is obtained; adding an updating time sequence identifier for each second updating data group; and inserting each second update data group and the corresponding update time sequence identifier into a second structure database, and querying data by the second structure database according to the update time sequence identifier. The embodiment of the invention can improve the row and column synchronization efficiency of the database and improve the accuracy of data synchronization.

The invention discloses a directional coordinate transformation method of a satellite-borne dual-offset reflector antenna, and belongs to the field of space measurement. The method comprises the following steps: firstly, calculating an installation parameter matrix representing a transformation relation between an antenna installation reference coordinate system and a satellite reference coordinate system; secondly, measuring the offset angle of the antenna in the zero attitude of the antenna, and constructing an electrical geometric parameter matrix representing the inherent structure transformation of the antenna; then, acquiring an antenna electric axis expected pointing coordinate represented by an azimuth angle and a pitch angle under a satellite coordinate system; and finally, solving a main surface axis rotation angle and an auxiliary surface axis rotation angle used for driving the antenna pointing mechanism through coordinate transformation based on the two angles. According to the invention, the problem of directional coordinate transformation caused by non-orthogonal parallelism of a dual-offset antenna rotation axis and a satellite coordinate axis is solved, high-precision in-orbit pointing of the antenna is ensured, the antenna passes darkroom test verification, and the antenna system can be expanded and applied to other antenna systems containing dual-axis rotation mechanisms.

The invention belongs to the technical field of hydrates, and particularly relates to a method for removing crystal water of an inorganic hydrate at low temperature and simultaneously realizing structural transformation to obtain a stable anhydride. The preparation method comprises the following steps: mixing inorganic hydrate and acid liquor to obtain a mixture; the acid liquor comprises inorganic acid and a solvent, the inorganic acid is inorganic oxyacid corresponding to oxyacid radicals of the inorganic hydrate, the solvent is water or an aqueous solution, and the aqueous solution is a solution formed by water and polyol; covering the mixture and standing to obtain a material after standing; and carrying out heat treatment on the material after standing to obtain an intermediate product which comprises a stable anhydrous substance corresponding to the inorganic hydrate and an acid solution after the reaction is finished. According to the method provided by the invention, dehydration and structural transformation of the inorganic hydrate can be realized at a relatively low temperature, so that energy can be remarkably saved, carbon emission can be reduced, conditions in the whole reaction process are milder, the method is easier to implement, equipment investment is reduced, and the method is suitable for industrial application.

This invention discloses a method for preparing and applying a dynamic pH / light-responsive bilayer programmable hydrogel, belonging to the field of hydrogel materials technology. The purpose of this invention is to address the problems of existing hydrogel materials, such as single crosslinking structure, irreversible crosslinking, difficulty in simultaneously achieving mechanical and responsive properties, single response mode, and insufficient programmable controllability. The method involves: 1. Preparing a borate ester crosslinked PVA-B-O-PVA hydrogel; 2. Preparing a pH / light-responsive bilayer hydrogel. This hydrogel can achieve swelling regulation through reversible breaking and recombination of borate ester bonds under varying acidic and alkaline conditions. Under light irradiation, it achieves photochromism and deformation response through the SP / MC structural transformation of spiropyran molecules. Furthermore, it achieves bending, folding, and programmable motion behavior through the synergistic effect of different functional layers in the bilayer structure. It can be applied to flexible actuators, programmable soft actuators, and environmental response sensors in complex environments.

The invention discloses a method for improving the structure and performance stability of copper-containing precipitation strengthened steel through rare earth elements, and relates to the technical field of copper-containing precipitation strengthened steel machining. According to the method provided by the invention, the stabilizing element which can be combined with the vacancy to form the stabilizing element-Vac complex is introduced into the steel, so that the stabilizing element-Vac complex generates a pinning effect on the Cu precipitated phase, and the structural transformation and coarsening of the Cu precipitated phase are inhibited. By the adoption of the method, the proportion of the 9R-Cu phase in the precipitation phase can be greatly increased, the alloying cost of the copper-containing precipitation strengthened steel can be remarkably reduced, the welding process performance can be improved, the application temperature range can be expanded, and the service life of the steel can be prolonged.

This invention provides a one-step reinforcement learning-based adiabatic environment construction method for simulating crystal structures, belonging to the fields of reinforcement learning and materials synthesis technology. This method searches for possible phase transition paths that a crystal may undergo during experiments by approximating the relationship between the phase transition process and the energy supply. Specifically, the method first obtains all possible structures of the crystal material undergoing phase transitions to construct the simulation environment. Then, it processes the specific information contained in all possible structures, performs structural transformations, and formulates transformation rules to simulate the phase transition process of the crystal material. Therefore, this method can effectively assist experiments, reduce the number of experiments, lower costs, and has high economic value for the field of materials synthesis.

The invention discloses a ZIF-67 derivative hollow material and a room-temperature boronizing and vulcanizing two-step preparation method thereof. The preparation method comprises the following steps: firstly, synthesizing rhombic dodecahedron ZIF-67 by adopting a room temperature precipitation method, and then in-situ growing CoNi-LDH nanosheets on the surface of the rhombic dodecahedron ZIF-67 by introducing Ni < 2 + > to form a core-shell structure precursor; then boronizing treatment and sulfidizing treatment are sequentially carried out at the room temperature, wherein the boronizing treatment realizes partial selective etching of the material, and a core-shell / hollow coexisting structure is formed; and the sulfuration treatment further completes structure transformation and surface refinement, and finally a complete hollow structure with an ultrafine nanosheet surface is obtained. According to the application of the material as a supercapacitor electrode material, the material is charged and discharged within the range of 0-0.5 V, and when the discharge current density is 1 A g <-1 >, the specific capacitance is 1550-1620 F g <-1 >; and compared with 1 A g <-1 >, the specific capacitance retention rate is 70-80% under the current density of 10 A g <-1 >.

The invention discloses a three-dimensional bracket and a preparation method thereof. The three-dimensional scaffold is of a three-dimensional porous network structure formed by interweaving silicon dioxide nanofibers, and the three-dimensional scaffold is prepared by performing gas foaming treatment on a silicon dioxide nanofiber membrane; an epigallocatechin gallate-metal ion composite coating can be further loaded on the surface of the stent, and metal ions are preferably copper ions. The preparation method comprises the following steps: preparing PVA and TEOS into a spinning solution, and carrying out electrostatic spinning and high-temperature calcination to obtain a silicon dioxide nanofiber membrane; and then soaking in a sodium borohydride solution for gas foaming treatment to construct the three-dimensional porous scaffold. Structural transformation from a two-dimensional membrane to a three-dimensional through porous scaffold is achieved through mild gas foaming, the material is endowed with high water absorption, remarkable antibacterial and antioxidant activity and excellent angiogenesis and osteogenesis promoting performance by combining with the active coating, and the material has good application prospects in the field of tissue regeneration engineering.

This invention relates to the field of welding technology in building engineering, specifically to a welding fixture for building engineering, comprising: a conversion mechanism on the upper side of a base plate and an adjustment mechanism located outside the conversion mechanism, with a locking mechanism on the adjustment mechanism; this invention enables stable positioning and precise docking of steel sections with different cross-sections through rapid structural transformation of the welding fixture, allowing the same welding fixture to be adapted to various cross-sectional shapes of steel such as H-beams, U-beams, square tubes, and angle steel, while also possessing dimensional adjustment capabilities to meet the processing requirements of steel sections with different specifications and sizes. This not only significantly reduces equipment investment and warehousing management costs, but also greatly improves the production line's rapid response capability to steel sections with different cross-sections, while providing effective technical support for multi-variety, small-batch production modes; it can also be adaptively adjusted according to the cross-sectional profile of different steel sections to ensure stable locking onto the positioning welding fixture.

The invention belongs to the technical field of optical materials and photonic devices, and discloses chalcogenide glass for a mid-infrared photonic device for femtosecond laser direct writing and a tuning method. According to the invention, chalcogenide glass GeSbSNa is used as a substrate, and femtosecond laser beams are focused in the glass substrate; and controlling the central wavelength of the femtosecond laser to be 1030 nm, the pulse duration to be 100 fs to 1 ps, the repetition frequency to be 100 kHz and the scanning speed to be 1 mm / s, so that the laser energy density of the focusing region is enough to induce a modification region with the refractive index change delta n greater than 0.032 in the chalcogenide glass. The invention systematically evaluates the influence of composition and laser parameters on refractive index variation, phase offset and thermal stability. Through combination of a quantitative phase microscope and a Raman spectrum, optical modification and underlying structure transformation are associated, and an insight is provided for adjustability and toughness of GeSbSNa glass in MIR photon integration.

This invention discloses a method for preparing hybrid metal halide crystals based on in-situ organic reactions. The method first dissolves bismuth bromide or antimony bromide in a mixed solution of dimethyl sulfoxide and hydrobromic acid. Then, acetone is added to the reaction system, allowing dimethyl sulfoxide and acetone to sequentially generate intermediate and product cations under acidic conditions. These two cations enter the hybrid metal halide crystal lattice as organic components in an independent and mixed manner, thereby achieving a directional structural transformation of three highly correlated types of hybrid metal halides. The transformation rate depends on the system's settling temperature. The compound product prepared by this invention is lead-free, has low toxicity, and yields crystals with high integrity and crystallinity. This method is simple, capable of mass production, and highly suitable for widespread application.

This invention provides a structured text code generation method for PLC honeypots, relating to the field of computer technology. The method includes: constructing a set of protected variables; performing equivalent structural transformations on control blocks and expressions; re-segmenting the code after data flow analysis; and performing statement rearrangement, value modification, and temporary variable renaming on linear statement segments based on data dependency analysis, achieving diverse code perturbations while maintaining semantic consistency. The transformation space is further expanded through loop safety checks and large language model-assisted refinement. Finally, declaration information is supplemented and the output variant L5X file is backfilled. This invention, through semantic awareness and large language model assistance, improves the semantic consistency, formal diversity, and usability of generated code variants.

This invention relates to a method for controlling deformation during heat treatment of large-sized medium-low carbon alloy steel square parts. The method employs a pit-type heating furnace with suspended hanging to ensure verticality and prevent deformation caused by uneven placement during heating. A limited-rate heating and stepped heat preservation method is used to reduce the temperature difference between the inside and outside of the workpiece, thereby reducing internal thermal stress and minimizing the risk of deformation or cracking. While ensuring quenching effect, a water-soluble medium with a low cooling rate (6.0%~12%) is used for quenching cooling to reduce deformation caused by structural transformation stress. High-temperature tempering is used to stabilize the microstructure and obtain the desired comprehensive properties. After tempering, limited-rate furnace cooling is performed to remove residual stress within the workpiece. The residual heat of the workpiece after tempering is used for thermal correction, reducing correction stress. Vertical correction with overlapping edges, protection with thin iron or copper sheets, and pressure-relieving correction methods prevent damage to the surface and edges of the square parts, improving surface quality and reducing deformation problems in large-sized medium-low carbon alloy steel square parts during heat treatment.

This invention belongs to the field of biological detection and discloses a polarity and viscosity synergistic response fluorescent probe, its preparation method, and its application. The structural formula of the probe involved in this invention is as follows: This probe exhibits keto form D-A and enol form D in different polar solvents. + -A − The probe undergoes a structural transformation and is influenced by the photoinduced electron transfer (PET) effect. It exhibits no fluorescence in polar solvents and under low-polarity, high-viscosity conditions, but fluorescence is activated under high-polarity, high-viscosity conditions. In PBS buffer, the probe fluorescence is quenched due to the PET effect. Upon binding to HSA, the high steric hindrance microenvironment of HSA restricts probe molecule movement and inhibits the PET process, resulting in specific fluorescence activation at 578 nm. Furthermore, the fluorescence intensity shows a good linear relationship with HSA concentration over a wide range. This probe can rapidly and accurately detect albumin and can be used for detecting albumin levels in cerebrospinal fluid, applying it to the rapid screening of diseases related to blood-brain barrier damage.

The invention provides a fish-scale pit type ecological restoration method for mining ground surface cracks. The fish-scale pit type ecological restoration method comprises the following steps that S1, an anti-seepage water retention layer is constructed at the bottoms of the cracks; s2, forming a fish-scale pit structure; and S3, planting based on a vegetation system of the microhabitat. According to the fish-scale pit type ecological restoration method, the surface cracks are converted into the fish-scale pits with the water storage and soil moisture conservation functions through structural transformation, and ecological restoration is achieved through efficient utilization of vegetation.

This application relates to the fields of digital healthcare and computer technology, specifically disclosing a rich text processing method, apparatus, storage medium, and electronic device. The method includes: performing structural transformation on rich text content to obtain a tree structure with several content elements as nodes; classifying each content element in the tree structure to determine the element type corresponding to each content element; calculating the fitting degree for the current parent node and several current child nodes corresponding to the current parent node in two adjacent node levels of the tree structure, based at least on each content element and its element type, to obtain the fitting degree corresponding to each current parent node; determining a target encapsulation boundary based on the fitting degree corresponding to each current parent node, and performing container encapsulation processing on the rich text content based on the target encapsulation boundary. This application can refine the granularity of rich text, facilitating subsequent modification and adjustment of the rich text, and improving its flexibility.