6results about How to "Choose accurately" patented technology

The application provides a rotating machinery impact fault feature extraction method, device and storage medium, and belongs to the technical field of equipment fault diagnosis. The method comprises the following steps: acquiring an impact response vibration signal; calculating the envelope spectrum kurtosis of each sub-band signal, wherein the sub-band signal is a sub-band signal at different levels decomposed from the impact response vibration signal; marking the non-cyclostationary frequency band according to the envelope spectrum kurtosis; calculating the square envelope autocorrelation kurtosis of the unmarked sub-band signal; determining the frequency band of the sub-band signal corresponding to the maximum square envelope autocorrelation kurtosis as the optimal demodulation frequency band; and performing envelope demodulation on the impact response vibration signal in the optimal demodulation frequency band to obtain the impact fault feature of the rotating machinery. The method disclosed in the application sequentially evaluates the impact characteristics and cyclostationarity characteristics of the impact response vibration signal, selects the optimal fault frequency band, and realizes accurate extraction of the impact fault feature.

There are provided a linker compound, for which a glutathione concentration at which a disulfide bond dissociates can be designed by molecular design, and which can accurately identify a cancer cell, is stable outside a target cell, and can effectively release a drug compound in the target cell, and a complex compound containing the same. The linker compound is used for a complex compound containing a drug compound and has a structure represented by the following Formula (1). (In Formula (1), R is a compound containing hydrogen, carbon, oxygen, or a halogen element, or a derivative thereof.

The present application relates to the technical field of data processing, and especially to a multi-dimensional reconciliation method and system based on a group meal platform, which comprises the following steps: determining the state of a sub-node according to a steady-state metric value and a correlation index, and determining a reference data selection method according to the state of the sub-node; in the single-node direct selection, the sub-node corresponding to the maximum comprehensive evaluation value is selected as the reference data; in the multi-node compensation selection, a compensation method is determined according to a steady-state mutual correlation degree and a steady-state balance coefficient to select the reference data; and a reconciliation sub-node selection method is determined according to a reference comparison coefficient and a cross-correlation coefficient of the sub-node corresponding to the to-be-reconciled data and the reference data; and the present application can improve the reconciliation processing efficiency.

The application discloses a kind of complex fine-grained sedimentary rock reservoir evaluation method, which comprises the following steps: step 1: the reservoir to be studied as target reservoir;Step 2: target reservoir is stratified according to lithology category and thickness;Step 3: gas-bearing property in target reservoir is analyzed, and favorable stratigraphic system is preliminarily selected according to gas-bearing property characteristics;Step 4: favorable stratigraphic system, carry out stratigraphic system development scale characterization, stratigraphic system reservoir property characterization, organic matter abundance characterization and gas-bearing property characterization analysis, according to reservoir evaluation parameter and the weight corresponding to each parameter and determine the gas-bearing property evaluation index REI value of the stratigraphic system type;Step 5: according to the type of target reservoir, establish the evaluation system of complex fine-grained sedimentary rock reservoir.The application considers the heterogeneity of fine-grained sedimentary rock reservoir internal structure, and proposes a reasonable reservoir property evaluation parameter calculation method.

This invention provides a multidimensional collaborative enhanced graph clustering method. It extracts preliminary node embedding representations from each view in multi-view attribute graph data, employs three-level collaborative contrastive learning (3C-CL), calculates contrastive losses at three granular levels (node, group, and global), and obtains a unified embedding representation that integrates multi-view features. Gradient norms are used to dynamically adjust the loss weights of the contrastive losses at each level, and a clustering loss optimization network based on the Student's t-distribution is jointly used to output the final graph clustering assignment result. In sparsely connected views, the receptive field is automatically expanded to capture higher-order neighbor information, while in densely connected views, the aggregation depth is limited to avoid excessive information smoothing. This complementary system of structural information from micro to macro levels significantly improves cross-view semantic consistency, identifies difficult samples with similar attributes to the target node but different potential categories, and achieves more accurate sample selection.

The utility model provides a kind of positioning device of mould, belong to mould manufacturing technical field, the positioning device of this mould includes positioning seat body, positioning column, adjusting mechanism, locking mechanism and guiding mechanism;Positioning seat body is hollow cylinder, bottom is equipped with bottom surface, and circular through-hole is opened in the center of bottom surface;Stepped positioning column is composed of lower section cylinder and the upper section cylinder of greater diameter;Adjusting mechanism contains adjusting seat and adjusting screw rod, adjusting seat is fixed in seat body side wall, adjusting screw rod passes through adjusting seat and extends into seat body interior, and its end abuts on the side wall of upper section cylinder to adjust height;Locking mechanism is composed of locking bolt and locking block, locking block is placed in seat body, locking bolt is connected with locking block by thread in radial through seat body side wall, and locking block inner arc surface and upper section cylinder outer wall are pasted to realize lock solid;Guiding mechanism contains guide sleeve and guide rod, guide sleeve is fixed in seat body top end, guide rod passes through guide sleeve and is fixedly connected with the top end of upper section cylinder, and it is ensured that column lifting direction is accurate and unbiased.