Abstract: An irregular seismic data collection method is based on forward modeling. The method includes: fully collecting geological information of a work area to build a geological model, determining arrangement parameters of receiver points and shot points for regular high-density collection and irregular sparse collection, performing irregular optimization design on positions of the shot points based on forward modeling, performing irregular optimization design on positions of the receiver points based on forward modeling, and outputting a preferred irregular sparse observation system.

Abstract: The present invention belongs to the field of petrochemical industry, and discloses a method for selective hydrogenation of butadiene extraction tail gas and a selective hydrogenation apparatus thereof.

Abstract: A matching control method for mechanical impedance of a magnetostrictive precision transducer includes developing a three-layer neural network model corresponding to a Young's modulus of a Terfenol-D material; acquiring sample data to form a training sample set and a testing sample set; training the model using a Bayesian regularization training algorithm, and optimizing connection weights and thresholds among layers of the tested model, so as to obtain a final three-layer neural network model; based on the final model, building an inverse model of mechanical impedance of the magnetostrictive precision transducer; using a current level of impedance of a load as an input of the inverse model to obtain a bias magnetic field, and changing a level of the bias magnetic field by changing a bias current in an excitation coil of the transducer, thereby achieving adaptive matching between the mechanical impedance of the transducer and the impedance of the load.

Abstract: A digital-twin modeling method for an automated testing pipeline for circuit breakers involves acquiring a three-dimensional digitalized model of each mechanical installation in the testing pipeline; modeling hierarchy according to an actual production process and motion states; performing mesh optimization on the resulting model; designing movements of each said mechanical installation, so as to obtain mechanical movement tracks of the models; combining actual movement logic and cooperative relationship among the movements to edit the mechanical movement tracks of the models; and introducing motion control, so as to conduct motion simulation in a digital-twin scene, thereby implementing virtual movements synchronous with movements of the actual testing pipeline.

Abstract: A method includes receiving a natural language query at an information system, the natural language query indicating an intent and at least a first factor and a second factor. The method also includes retrieving a set of candidate information from the information system based on the natural language query, the set of candidate information having a type determined by the intent. The method additionally includes selecting a knowledge display template from a set of knowledge display templates using the intent, the first factor and the second factor. The method further includes rendering, using the knowledge display template, a first knowledge graph comprising the set of candidate information, the first knowledge graph indicating a relationship between the set of candidate information based the first factor and the second factor.

Abstract: A 25-hydroxycholecalciferol monohydrate crystal, a preparation method thereof, and a microemulsion using the 25-hydroxycholecalciferol monohydrate crystal. The X-ray powder diffraction spectrum of the 25-hydroxycholecalciferol monohydrate crystal of the present disclosure shows characteristic peaks at 2? of 10.035°, 11.623°, 14.631°, 15.054°, 15.551°, 16.471°, 17.198°, 19.002°, 19.628°, 20.109°, 21.886°, 23.113°, 23.661°, 24.701°, 25.220°, 25.440°, and 28.527°. The 25-hydroxycholecalciferol monohydrate crystal can effectively enhance the stability of 25-hydroxycholecalciferol, and is more beneficial to the production and storage of related preparations, and thus biological characteristics of 25-hydroxycholecalciferol can be effectively utilized.

Abstract: A method for prediction of dynamic rescheduling with a digital twin workshop for circuit breakers includes: building a circuit breaker digital manufacturing twin workshop system; determining a circuit breaker circuit breaker workshop dynamic rescheduling mathematical model that is based on rush order events, and performing prediction of information related to the rush order events on twin data of the circuit breaker digital manufacturing twin workshop system based on a prediction mechanism that relies on time window setting and order inquiry, and further updating the circuit breaker workshop dynamic rescheduling mathematical model with the predicted information related to the rush order events; and based on the updated circuit breaker workshop dynamic rescheduling mathematical model, developing a workshop dynamic rescheduling prediction model for multi-objective optimization focused on production efficiency and equipment energy consumption, and further finding an optimal solution to the workshop dynamic resch

Abstract: A matching control method for mechanical impedance of a magnetostrictive precision transducer includes developing a three-layer neural network model corresponding to a Young's modulus of a Terfenol-D material; acquiring sample data to form a training sample set and a testing sample set; training the model using a Bayesian regularization training algorithm, and optimizing connection weights and thresholds among layers of the tested model, so as to obtain a final three-layer neural network model; based on the final model, building an inverse model of mechanical impedance of the magnetostrictive precision transducer; using a current level of impedance of a load as an input of the inverse model to obtain a bias magnetic field, and changing a level of the bias magnetic field by changing a bias current in an excitation coil of the transducer, thereby achieving adaptive matching between the mechanical impedance of the transducer and the impedance of the load.

Abstract: A management platform for a digital twin workshop for automated assembly of circuit breakers includes a physical workshop management unit, a twin virtual workshop management unit, a twin data center and a service management unit. The physical workshop management unit performs scene object analysis, sensor network configuration and operation response. The twin virtual workshop management unit builds a virtual geometric scene and controls data movement response. The twin data center stores twin data. The service management unit performs on-line communication and builds twin data while managing and monitoring the physical workshop management unit. The management platform implements intellectualized and visualized management of production factors, activity planning and production process of a physical workshop for automated assembly of circuit breakers, so as to achieve automation control, parameter visualization and real-time-state monitoring of the physical workshop.

Abstract: A digital-twin modeling method for an automated testing pipeline for circuit breakers involves acquiring a three-dimensional digitalized model of each mechanical installation in the testing pipeline; modeling hierarchy according to an actual production process and motion states; performing mesh optimization on the resulting model; designing movements of each said mechanical installation, so as to obtain mechanical movement tracks of the models; combining actual movement logic and cooperative relationship among the movements to edit the mechanical movement tracks of the models; and introducing motion control, so as to conduct motion simulation in a digital-twin scene, thereby implementing virtual movements synchronous with movements of the actual testing pipeline.

Abstract: An configuration-based optimization method for automated assembly and production of circuit breakers includes ascertaining names, serial numbers, operating times, costs and maximum parallelism levels of all operation elements, and, based on structural principles and process requirements of the circuit breakers, analyzing the names, serial numbers and operating times of the operation elements, so as to identify assembly precedence and process connection among the operation elements; according to the costs and the maximum parallelism levels of the operation elements, optimizing and adjusting process parallelism levels of the operation elements and their corresponding shunt or confluent unit costs, and taking the assembly precedence, process connection and the optimized and adjusted process maximum parallelism as constraint conditions, with the aim to minimize the assembly line takt time and costs, to build a multi-objective optimization problem; and finding optimal solutions of the multi-objective optimization

Abstract: A 25-hydroxycholecalciferol monohydrate crystal, a preparation method thereof, and a microemulsion using the 25-hydroxycholecalciferol monohydrate crystal. The X-ray powder diffraction spectrum of the 25-hydroxycholecalciferol monohydrate crystal of the present disclosure shows characteristic peaks at 2? of 10.035°, 11.623°, 14.631°, 15.054°, 15.551°, 16.471°, 17.198°, 19.002°, 19.628°, 20.109°, 21.886°, 23.113°, 23.661°, 24.701°, 25.220°, 25.440°, and 28.527°. The 25-hydroxycholecalciferol monohydrate crystal can effectively enhance the stability of 25-hydroxycholecalciferol, and is more beneficial to the production and storage of related preparations, and thus biological characteristics of 25-hydroxycholecalciferol can be effectively utilized.

Abstract: Disclosed in the present invention is a method for preparing nilotinib intermediate 3-(4-methyl-1H-imidazol-1-yl)-5trifluoromethyl phenylamine (I). The method comprises the following steps: taking trifluorotoluene as an initial material, and preparing the nilotinib intermediate (I) by nitration, bromization, condensation and reduction successively Compared with the prior art, the preparation method has the following advantages: a relatively high yield, the raw materials are easily obtained, a concise process and few side reactions, and is adapted to industrial production, so the development of an economic technology of the bulk drug is promoted.

Abstract: A method includes receiving a natural language query at an information system, the natural language query indicating an intent and at least a first factor and a second factor. The method also includes retrieving a set of candidate information from the information system based on the natural language query, the set of candidate information having a type determined by the intent. The method additionally includes selecting a knowledge display template from a set of knowledge display templates using the intent, the first factor and the second factor. The method further includes rendering, using the knowledge display template, a first knowledge graph comprising the set of candidate information, the first knowledge graph indicating a relationship between the set of candidate information based the first factor and the second factor.

Abstract: Disclosed in the present invention is a method for preparing nilotinib intermediate 3-(4-methyl-1H-imidazol-1-yl)-5trifluoromethyl phenylamine (I). The method comprises the following steps: taking trifluorotoluene as an initial material, and preparing the nilotinib intermediate (I) by nitration, bromization, condensation and reduction successively Compared with the prior art, the preparation method has the following advantages: a relatively high yield, the raw materials are easily obtained, a concise process and few side reactions, and is adapted to industrial production, so the development of an economic technology of the bulk drug is pro moted.

Abstract: An overload protection saving circuit provided by the present invention has an input power circuit, an output power circuit, a control circuit, an overload timing circuit, and a saving circuit. The output power circuit couples to the input power circuit. The control circuit receives a feedback signal of the output power circuit in order to control the input power circuit. The overload timing circuit receives the feedback signal of the output power circuit in order to transmit an overload signal to the control circuit while the time of an overload is over a predetermining time. The saving circuit receives the feedback signal of the output power circuit in order to transmit a saving signal to the overload timing circuit while in a lightload or a noload, so that the overload timing circuit is disabled.

Abstract: In an LED device, a light guide array is disposed between a planar LED array light source and a curved housing. A first surface of the light guide array is a plane evenly distanced from the LED array and a second surface of the light guide array is a curved surface evenly distanced from the curved housing. A plurality of guiding channels, either one-to-one or one-to-many to the LED, are aligning along each light axis of the LED in the light guide array, whose reflective surface allows the lights emitted by each LED to reflect thereon and emit from the second surface and simulate a curved light source having substantially the same shape as the curved housing.

Abstract: A miniature projector module includes: a light source unit capable of emitting source light with first and second polarizations; a polarization beam splitter capable of reflecting the source light with the first polarization, and permitting transmission of the source light with the second polarization therethrough; a first image modulator capable of converting the source light with the first polarization reflected by the beam splitter into image light with the second polarization, and directing the image light with the second polarization toward the beam splitter for further transmission therethrough; a second image modulator capable of converting the source light with the second polarization transmitted through the beam splitter into image light with the first polarization, and directing the image light with the first polarization toward the beam splitter for further reflection thereby; and a projector lens for receiving and projecting the image light from the beam splitter.

Abstract: A light assembly includes a fin-type heatsink and a light module. The fin-type heatsink has a contact surface. The light module includes a thermally conductive cup-shaped chip seat and a light-emitting chip. The thermally conductive cup-shaped chip seat is attached to the contact surface of the fin-type heatsink, and defines a mounting recess. The light-emitting chip is mounted in the mounting recess in the thermally conductive cup-shaped chip seat. A method for making the light assembly is also disclosed.

Abstract: The invention provides an illuminant device for a projecting system. The illuminant device includes an illuminant unit, a diffusing element, and a concave mirror. The illuminant unit has a plurality of illuminants which are closely disposed. The diffusing element has an incident surface opposite to the illuminant unit and an emergent surface for a diffused light radiating therefrom. The concave mirror has a reflective surface used for condensing at least a part of the light radiated by the illuminant unit on the incident surface of the diffusing element.