88results about How to "Accurate depiction" patented technology

An ion radiation therapy machine provides a steerable beam for treating a tumor within the patient where the exposure spot of the beam is controlled in width and / or length to effect a flexible trade-off between treatment speed, accuracy, and uniformity.

The invention requests the protection for a information propagation model based on online social network and propagation method thereof, and belongs to the field of online social network analysis. The information propagation model is composed of accessing to the data source, building dimensional attribute driving mechanism and building dynamic evolution strategy, building hot topic propagation model. The first step, the data source is accessed. The second step, dimensional attribute driving mechanism is built, user attributes is extracted from two aspects of network structure and user history, and the effects the two factors have to the driver of the user's participation in the topic are stated quantitatively through utilizing multiple linear regression methods. The third step, dynamic evolution strategy is built, income matrix is defined and popularity is perceived, and according to evolutionary game theory, building dynamic evolution strategy. The fourth step, hot topic propagation model is built. The user multidimensional attribute model, dynamic evolution strategy and traditional SIR model build a novel hot topic propagation model. The invention has the advantages of being effective to describe the spread of trend hot information in social networks and reveal the influence of different driving factors on information dissemination.

The invention relates to the technical field of internet application, and particularly provides a method and a device for delivering an advertisement in a network forum. The method comprises the steps of acquiring the keyword of a user and the keyword of each advertisement during the scheduling period, wherein the keyword of the user comprises at least one user keyword and the keyword of the advertisement comprises at least one advertisement keyword; searching a vector corresponding to the user keyword and a vector corresponding to the advertisement keyword in a word-vector library; according to the vectors corresponding to the user keyword and the advertisement keyword, calculating a cosine similarity for each user keyword and each advertisement keyword; accumulating the cosine similarities of all user keywords of the user and the advertisement keywords of the same advertisement; adopting the accumulated result as the matching degree of the user and advertisements; selecting one advertisement highest in matching degree with the user and delivering the selected advertisement to the user. According to the technical scheme of the invention, matching words with the semantics can be found, and the advertisement accurate delivery aiming at different users can be realized.

An ion radiation therapy machine provides a steerable beam for treating a tumor within the patient where the exposure spot of the beam is controlled in width and / or length to effect a flexible trade-off between treatment speed, accuracy, and uniformity.

The invention provides a model and a method for measuring the resistance of contact holes or through holes in bipolar transistor components, used for measuring the resistance of contact holes and through holes in the back-end process of transistor components. The model consists of a plurality of resistor components, wherein, a group of poly-silicon resistors or diffused resistors with different lengths and widths are required to be designed for measuring the resistance of the contact holes; and a group of metal resistors with different lengths and widths are required to be designed for measuring the resistance of the through holes. Each poly-silicon resistor consists of a poly-silicon layer, a contact hole and metal lead-out; each diffused resistor consists of an N-type or P-type diffusedlayer, a contact hole and metal lead-out, wherein, the contact hole is located between the poly-silicon layer or the diffused layer and the metal layer and used for leading out the poly-silicon resistors or the diffused resistors; and each metal resistor consists of a certain layer of metal, a through hole and metal lead-out, wherein, the through hole is located between two layers of metal and used for leading out the metal resistors in the lower layer. The current passing the resistors can be measured by applying voltage to two resistor lead-out ends of each resistor.

The invention discloses a simulation operation method for a large-scale reservoir group in a main stream and tributaries of a river basin, and belongs to the field of optimal operation of a hydropowersystem. The method comprises the following steps that (1) construction of reservoir operation function is conducted, analysis of relevant factors affecting reservoir outflow is conducted, correlationanalysis is conducted, and determination of input factors of each reservoir operation function is conducted; (2) construction of a neural network model is conducted according to the input factors ofthe operation function, optimization of neural network parameters is conducted by adopting an adaptive moment estimation algorithm, training is conducted on the constructed neural network by using historical operation data of the reservoir, and the trained neural network is used as fitting function of the reservoir operation function; and (3) according to the fitting function of the reservoir operation function, a spatial topological structure and the constraints of the reservoir operation, the simulation operation model of the reservoir group is established to simulate the operation process of the basin reservoir group step by step. By means of the simulation operation method, the fitting accuracy is improved significantly, and the operation plan of the large-scale reservoir group in themain stream and tributaries of the river basin can be more accurately described in the case of the unknown operation law.

The invention relates to an ultrasonic image and CT image fusion real-time navigation system and method. The method is characterized by comprising the following steps: connecting all components, carrying out coordinate registration to obtain a registration matrix, and acquiring preoperative CT images or other preoperative images; performing CT image scanning to obtain CT images; according to the obtained CT images or an off-line fused image obtained by the fusion of the CT images and other preoperative images, confirming the position of the lesion tissue, confirming the needle insertion planewith the aid of an ultrasonic probe, and setting a target point / a target line; fusing the ultrasonic images into the CT images or the off-line fused image to generate a real-time fused image, and dynamically displaying the position of a surgical instrument on the real-time fused image; and updating the CT images in stages, updating the original CT images or the off-line fused image by adopting theupdated CT images, further updating the real-time fused image, and guiding percutaneous minimally-invasive surgery operations. The system can be widely applied to the field of percutaneous minimally-invasive diagnosis and treatment.

A method of accounting for errors in the altitude reporting of a terrain alert and warning system (TAWS) is disclosed wherein errors due to non-standard atmospheric conditions, incorrect altimeter setting and air data computer (ADC) sensor error are detected and corrected for by compensating ADC altitudes for cold temperatures as well as using global positioning system (GPS) altitude data to confirm the accuracy of the ADC altitude information at all times.

Systems and methods for animating a collaborator modification are disclosed herein that utilize duration information associated with the modification in order to depict the timing associated with the modification.

The invention provides a method and a system for displaying archive catalogue information on a map. The system comprises a geographical information picture gallery, an archive catalogue information database and a geographical coordinate surveying tool. The method comprises the following steps of firstly, reading line information of the engineering from the archive catalogue information database by the geographical coordinate surveying tool, and drawing the line layer of the line in proportion; then, combining a geographical information coordinate database of the archive catalogue information database, and embedding the line layer onto the map; reading the coordinate information of an archive keeping unit in the archive catalogue information database, and drawing the position of the archive keeping unit; and finally, reversely correlating and searching the archive catalogue information through the coordinates of the line on the line layer. The cross-regional line project sections, bypass convertor stations, substations and the like are modeled and drawn on the map by the geographical coordinate technique, and the original disperse archive information distributed in each unit is drawn on the map in a general, accurate and lively way.

A method for finely monitoring the water level of each region of a reservoir based on a neural network comprises the following steps: firstly, performing regional division on a water collection part of the reservoir to obtain different water collection regions of the reservoir, then collecting historical data of the water collection regions of the reservoir, and then constructing a neural network model for each type of water yield of each region of the reservoir; the neural network models are trained; after a water level mathematical model is constructed according to the reservoir water collection region, prediction is conducted according to data collected in real time, predicted data are input into the mathematical model to be solved, the water surface change and the water level height of each region at each fine graining moment in the future are obtained, and an alarm is given when the water level is larger than a set threshold value. According to the method, the water surface change and the water level height can be more accurately described, and the water level difference in a small time period is captured, so that refined monitoring and alarming are realized.

The invention discloses an optimization method for uploading information of a vehicle driving trajectory, and relates to the technical field of Internet of Things. The method comprises the following steps that a vehicle measures present position information continuously at a relatively high frequency, and the present position information includes latitude and longitude information; the vehicle uploads the position information measured at present to a network / cloud end in a relatively long default period; every time after uploading by the vehicle, the recorded latitude and longitude informationof the position is recorded, and is compared with the newly measured latitude and longitude information continuously; if the included angle of a deviation therebetween is greater than certain fixed angle, the new position is sent to the network / cloud end immediately; and otherwise, the vehicle reports the position information then till the next default period, and the above steps are repeated. Thus, it can be ensured that the network / cloud end can describe the vehicle driving rule accurately, and position information is uploaded as less as possible.

The invention discloses a DSM automatic comparison system based on aerial photography measurement, and belongs to the technical field of aerial photography measurement. The system comprises an elevation extraction module, an elevation conversion module, a layer superposition module and a comparison labeling module; the elevation extraction module is used for extracting elevation data of the two stages of aerial photos processed by the aerial photo processing module; the elevation conversion module is used for converting the elevation data of the two-stage aerial photo extracted by the elevation extraction module into a vector layer; the layer superposition module is used for performing superposition processing on vector layers of the two stages of aerial photos; the comparison labeling module is used for labeling areas with changes in the two-stage aerial photo vector layers. According to the invention, the method is scientific and reasonable, is suitable for large-scale aerial photo inspection and comparison, greatly shortens the inspection and comparison time, greatly reduces the manpower investment, can more accurately discover the existence of illegal buildings, is higher in comparison pertinence, and can achieve the effect of screening buildings with different areas through the adjustment of various numerical values.