35 results about "Topological transformation" patented technology

System and method for determining the presence of an object of interest in a target image. Regions of a target image may be located that match an object of interest, e.g., in a template image, with respect to various information, e.g., luminance, color and / or other types of boundary information. The invention includes improved methods for mapping point sequences (e.g., pixel sequences) or curves to new point sets or curves for curve matching. The method determines the presence of an object of interest in a target image despite of or using various types of topological transformations of the object of interest in the target image. One or more mapping operators are determined based on template curves and / or example target curves. Pattern matching is performed on one or more target images using the mapping operator(s) to generate pattern matching results, and the pattern matching results output.

System and method for determining the presence of an object of interest in a target data set. Portions of a target data set may be located that match an object of interest, e.g., in a template data set, with respect to various information, e.g., edge or boundary information. The invention includes improved methods for mapping point sets or curves to new point sets or curves for curve matching. The method determines the presence of an object of interest in a target data set despite of or using various types of topological transformations of the object of interest in the target data set. One or more mapping operators are determined based on template curves and / or example target curves. Pattern matching is performed on one or more target data sets using the mapping operator(s) to generate pattern matching results, and the pattern matching results output.

Overloaded regions in the routing space of a physical network are resolved via a routing procedure composed of a topological routing phase and a geometric routing phase. The overloads are resolved in the topological routing phase where the constraints of routing are less prohibitive. Multiple topological transformations directed toward resolving the overloads are executed in the topological routing phase prior to a geometric arrangement being realized. The topological transformations may be applied concurrently by way of a multi-threaded embodiment of the invention.

System and method for determining the presence of an object of interest in a target image. Regions of a target image may be located that match an object of interest, e.g., in a template image, with respect to various information, e.g., luminance, color and / or other types of boundary information. The invention includes improved methods for mapping point sets or curves to new point sets or curves for curve matching. The method determines the presence of an object of interest in a target image despite of or using various types of topological transformations of the object of interest in the target image. A plurality of mapping operators are determined based on template curves and / or example target curves, e.g., background object curves. Pattern matching is performed on one or more target images using the mapping operators to generate pattern matching results, and the pattern matching results output.

The invention discloses a topology conversion type multi-resonance element resonant soft-switching DC converter, which is composed of a bridge inverter circuit, a topology conversion multi-element resonance circuit and a diode rectifier circuit connected in sequence, and the converter is composed of the bridge inverter Transforming circuit input, output from the diode rectifier circuit after the action of the topology conversion multi-component resonant circuit; the bridge inverter circuit can realize the switching between the half bridge and the full bridge according to the switching of the switching tube; the topology conversion multi-component resonant circuit includes two A transformer to effectively broaden the power transmission capacity of the converter; the topology conversion multi-component resonant circuit can realize the switching between the LCLCL resonant circuit and the CLTCL resonant circuit through the auxiliary switch; at the same time, it can realize the zero-voltage turn-on of the switch tube and the diode of the post-stage rectification circuit The zero-current shutdown (ZCS) can reduce the circulating current, improve the efficiency and capacity of the converter, and has the advantages of wide-range adjustable input and output voltages and over-current protection.

The invention discloses a method for expressing the connectivity of an opportunistic sensor network by using the connectivity of the entire network. This method is suitable for practical application scenarios such as environmental monitoring and communication in remote mountainous areas. Due to the limitation of terrain, the sensor network is divided into multiple areas. The network connectivity in the area is good, but the areas are not connected to each other. Specific mobile nodes collect and transmit the sensing data generated by the region, thus forming an opportunistic sensor network with disconnected regions. The present invention firstly defines a key parameter reflecting network connectivity—the connectivity of the entire network according to the transmission characteristics of opportunistic sensor network perception data; then, according to the topology transformation characteristics of the network, regularly obtains snapshots of the entire network; then the obtained The snapshot set is converted into an ordered adjacency matrix set; finally, the connectivity of the entire network is calculated through the adjacency matrix set to represent the connectivity of the opportunistic sensor network. The invention fully considers the transmission characteristics of the opportunistic sensor network perception data, and uses the connectivity of the entire network to accurately reflect the connection status of the opportunistic sensor network.

The invention discloses a trust model-based cooperative communication method in a mobile self-organized network. In the method, cooperation of nodes is excited under wireless Ad Hoc network environment by establishing a global trust level and safe recommendation trust level-based trust model and utilizing a trust-fading punishment mechanism and a node salvation mechanism. In the mobile self-organized network, the node determines whether the monitored node participates in the cooperation by utilizing direct monitoring and comprehensive evaluation of monitoring information of other nodes, and a reconstruction mechanism is set for a malicious node, so that the node is newly added into the network and establishes connection with the other nodes; and based on the false recommendation, iterative convergence and punishment and salvation problem of a majority of trust models, the global trust level and safe recommendation trust level-based trust model is established, and a topological transformation-based recommendation trust computation method is brought forward; and in the trust varying process described by the trust model, the cooperation of the nodes is excited under the mobile self-organized network environment by using the punishment mechanism of an updating stage and the salvation mechanism of a reestablishment stage.

A highly stable synthesis gas conversion catalyst and a preparation method thereof belong to the field of synthesis gas conversion. The catalyst is a multi-level structure constructed of alumina pellets and hydrotalcite. Taking advantage of the confinement effect of the laminates during the topological transformation of the hydrotalcite precursor, Ga 0 with Ga 3+ The interaction between them leads to a stable CoGa catalyst. The advantage is that it has a well structure and Ga 0 with Ga 3+ Together with the stable CoGa particles, the catalyst has good stability in the synthesis gas conversion reaction. In addition, the present invention has a multi-level structure, which is convenient for industrial application.

The invention provides a method for rating of raw milk quality. The method for rating of raw milk quality comprises the following steps of determining fat content, protein content, fungimycin content, total bacterial colony content and impurity content of a raw milk sample, respectively carrying out normalization treatment on data of the fat content, the protein content, the fungimycin content, the total bacterial colony content and the impurity content through the existing neural network normalization method, drawing a radar map according to the treated data, carrying out cluster analysis of the treated data by the radar map, transforming the radar map into a pyramid form by a topological transformation method of mathematics, carrying out inverted normalization treatment on data of the pyramid form, and carrying out grading of the data of the pyramid form according to raw milk quality information needed actually so that rating of raw milk quality is realized. The method for rating of raw milk quality can realize concise and clear rating of raw milk quality by a three dimensional image, is reasonable and feasible, has a wide application scope and a high practical value, and is conducive to objective evaluation and selection given by consumers, enterprises and milk farmers on quality of raw milk and congeneric related foods according to vital interests.

The invention relates to a method for intelligently generating a Chinese character without a character library. A system is not provided with the character library but only a basic element library; and a task of solving mapping knowledge of the basic element of the Chinese character is decomposed into five steps by analyzing composition characteristics of the Chinese character. The method comprises the following steps of: reasoning a structure tree of the Chinese character according to input codes of the Chinese character; decomposing the Chinese character with a multilevel structure into a series of Chinese characters with a first-level structure by traversing the structure tree of the Chinese character; determining the size and position of external rectangles of compositions of the Chinese character by analyzing external rectangular puzzles of the compositions of the Chinese character; comparing the standard external rectangle of the basic element with the external rectangle of the basic element in the Chinese character to obtain the transformation coefficient of the basic element of the Chinese character; performing topological transformation on the basic element of the Chinese character to obtain the Chinese character; and therefore, the Chinese character is intelligently generated. The problem that the positioning size and the rectangle size of the external rectangle of each composition of the Chinese character cannot be determined by inputting the codes of the Chinese character in the prior art is solved; and the Chinese characters entering a computer are not limited by the character library any more.

The invention discloses a metal oxide-supported gold catalyst for efficiently catalyzing glycerin to prepare DHA and a preparation method thereof, which belong to the field of biomass catalytic conversion technology and related chemical technology. The catalyst consists of uniformly dispersed gold nanoparticles and bimetallic composite oxides. The catalyst is prepared by topological transformation of hydrotalcite as a carrier. The advantage is that the interface interaction between Au nanoparticles and the carrier and the interaction between the carrier metals can be adjusted by controlling the preparation method of the hydrotalcite precursor. The catalyst is used in the selective oxidation reaction of glycerol. When the reaction is at 80°C and 0.5Mpa for 4 hours, the conversion rate of glycerin can reach 98%, and the selectivity of DHA can reach 55.8%.