34results about How to "Help capture" patented technology

A method and system of imaging of a vessel is provided. The system can include a matrix transducer array (120) for transmitting ultrasonic waves into a region of a body having a vessel and receiving echoes in response, where the echoes are associated with blood flow through the vessel; and a processor (100) operably coupled to the matrix transducer array. The processor can adjust positions of sample volumes (250) associated with the echoes. The processor can electronically steers the ultrasonic waves at one or more of the positions of the sample volumes. The processor can determine a wall of the vessel at each of the positions of the sample volumes based on a Doppler spectrum captured at each of the positions of the sample volumes. Other embodiments are disclosed.

The invention relates to a management system for a parking site for vehicles with at least one parking zone comprising a plurality of parking places. Said system comprises an output device for data carriers that are to be carried by users of the site and equipment for reading and / or writing information to the data carriers, the output device and the read / write equipment being connected to a data processing centre. The read / write equipment (20) interacts with passing data carriers (10) within a specific remote action area (30), in such a way that data can be wirelessly transmitted in passing, thus allowing the displacement, the parking zone used and optionally even the occupied parking space to be tracked and the data to be made available in a centralised manner in the data processing centre and also in a decentralised manner on the data carrier (10) of each individual user.

The invention discloses a traffic speed prediction method, which is characterized in that the method comprises: acquiring a data set, the data set including road network information and vehicle speed information; Spatial correlation and output the vehicle speed feature matrix V(K) of each road section; use the time convolution network to learn the time law of V(K) and output the time series feature matrix, use the multi-head self-attention mechanism to learn the coupling relationship between feature matrices and Output Through the present invention, the graph attention mechanism and temporal convolutional network are used to extract the spatial and temporal dependencies respectively, and the multi-head self-attention mechanism is introduced to extract the spatio-temporal coupling effect. The multi-head self-attention mechanism can learn from different representations at different positions. Spatial information, which helps to capture the temporal information of traffic flow and achieve higher prediction accuracy.

The invention discloses a method for assembling nano-particles carrying laminin and SDF-1alpha on surfaces of Ti materials. The method comprises the steps that firstly, Hep-PLL nano-particles carrying Ln are prepared; then DM coatings are prepared on the surfaces of angiocarpy materials, nano-particles including amidogen are fixed to surfaces of samples in a covalence mode through the characteristics that DM and the amidogen can generate the Michael reaction and the Sievert reaction; finally, through the characteristics that heparin in the nano-particles can be specially bound with the SDF-1alpha, the SDF-1alpha is assembled to the surfaces of the nano-particles, and therefore multifunctional bioid modification surfaces with anticoagulation, hyperplasia prevention and endothelium regeneration inducing characteristics are constructed. According to the method, the nano-particle modification layers with the anticoagulation, hyperplasia prevention and endothelium regeneration inducing characteristics are constructed on the surfaces of the angiocarpy materials, the blood compatibility and endothelium and endothelial progenitor cell compatibility of the materials are obviously improved, and the capacity of restraining smooth muscle hyperplasia is enhanced.

The invention discloses a synchronous measuring apparatus and method for a wall jet gas-solid two-phase velocity field. The apparatus comprises a pulverized coal furnace modeling device, waveguide tubes, microwave emitters, an infrared wide-angle lens, a visible wide-angle lens, a high-speed CCD camera, an infrared thermal imager, a pulse laser sheet light source, a polarity particle, a fluorescent particle, a fluorescent particle uniform mixing chamber, a polarity particle uniform mixing chamber, and a computer. In a gas-solid two-phase flow field, the fluorescent particle serves as a tracer particle of wall jet air flows and the polarity particle simulates solid particles in rotating air flows, and a visible image and an infrared image of the two particles are presented by two different optical devices respectively according to the different optical characteristics of the two particles. In this way, the problem of a conventional method that two-phase particles are difficult to separate is solved, and the measuring precision is greatly improved.

The invention discloses a Thai sentence segmentation method based on a twin cycle neural network, which belongs to the field of sentence segmentation. The method of the invention does not need artificially designed features, and does not rely on part-of-speech tagging and syntactic information. Compared with existing methods, the method proposed by the present invention is more concise, and the sentence segmentation effect has also been improved; when the inventive method encodes the word sequence before and after the space to obtain the features of sentence segmentation, the words before and after the space The sequence uses the same model framework and shares the same parameters, which better considers the comparability between word sequences before and after spaces, and reduces the parameters, which is more conducive to model training; learning through word embedding and cyclic neural network The feature representation of word order helps to capture the hidden semantics in sentences, thereby improving the performance of sentence segmentation.

The invention belongs to the technical field of ore pulp flotation, and particularly relates to a non-ferrous metal mine flotation process. The process includes the following steps that a plurality ofhollow ice balls are taken, and an electric drill is used for uniformly drilling a plurality of cylinder holes in the wall thickness direction of the hollow ice balls; a plurality of calcium oxide cylinder rods are inserted into the cylinder holes of the plurality of hollow ice balls, and calcium oxide is used for accelerating melting of the hollow ice balls; inner cavities of the plurality of hollow ice balls are filled with Arabic gum powder, and openings of the hollow ice balls are closed by ice blocks; the plurality of hollow ice balls are thrown into a machine body of a non-ferrous metalmine flotation device, a proper number of sodium carbonate saline solution is thrown into ore pulp in the machine body, and the sodium carbonate saline solution is used for reacting with the Arabic gum powder to generate lots of bubbles; and a motor on the machine body is started, and the ore pulp and the sodium carbonate saline solution are stirred. Due to the non-ferrous metal mine flotation process, the lots of bubbles can be generated due to the fact that the Arabic gum powder reacts with the sodium carbonate saline solution, generation of the bubbles is accelerated due to heat generatedwhen calcium oxide reacts with water, and the flotation quality of the ore pulp is improved.