45 results about "Computer-aided technologies" patented technology

The present invention provides a novel technique and is particularly useful in medical imaging, although a number of fields may benefit from its application. In one aspect of the technique, a user identifies anomalies or, more generally, features in at least two different comparable images either by computer aided techniques or by manual identification. Once the features are identified they are numbered, sized, and a key location for the feature, such as the middle of an anomaly, may be estimated. Once this location is determined, a location marker is used to perform registration of the images. When comparisons are to be conducted, then, the registration is used to effectively anchor the images with respect to one another to facilitate paging between the images and reduction of eye movement.

The invention relates to the fields of computer-aided technology and maxillofacial plastic medical apparatus and instruments, in particular to an optimal design and manufacturing method for a jaw defect individual restoration. The optimal design and manufacturing method is characterized by comprising the following steps: conducting CBCT scanning on the maxillofacial part of a patient, obtaining DICOM data, guiding the data into three-dimensional modeling software-MIMICS (Materialise, Belgium) to reconstruct a jaw three-dimensional model, designing the individual restoration, designing models of a plurality of virtual screw according to the size of retention screws supposed to be adopted, then moving the models to the appropriate positions of the jaw to simulate the situation to the screw retention restoration, obtaining Von Mises stress and a strain nephogram, and manufacturing entities of various materials through the fast forming technology. The jaw defect individual restoration made through the manufacturing method for the jaw defect individual restoration has good performance in biomechanical properties including breaking strength, stress-strain distribution, the service life and the like. So far, a patient with upper and lower jaw defects accepting an implanting operation is observed for two years, and no bad complications of fracture, exposure and the like happen.

A method for computer-aided closed and/or open-loop control of a technical system is provided. A first value of an output quantity is predicted on a data-based model at a current point in time. A second value of the output quantity is determined from an analytical model. The state of the technical system at the current point is assigned a confidence score in the correctness of prediction of the data-based model. A third value of the output quantity is determined from the first and second value as a function of the confidence score for controlling the technical system. A suitable value for the output quantity can be derived from the analytical model even for regions of the technical system in which the quality of prediction of the data-based model is low because of a small set of training data. The technical systems can be turbines, such as gas turbines.

A method of analytically modeling structured products and optimizing portfolios of structured products, comprising: relating investors' financial risk/reward objectives to structured products available in an structured product database; selecting structured products that qualify for inclusion in an structured product pool that targets to meet investors' objectives; and using advanced analytical computer aided techniques including Monte-Carlo analytical simulation to evaluate risk/reward characteristics of different portfolios of structured products and determining the optimal mix of available structured products for inclusion in an structured product pool that targets a specified set of investors' risk/reward objectives.

In various embodiments, a generative design application iteratively generates designs via a generative design process. In operation, the generative design application performs one or more layout operations on virtual objects based on a first set of design constraints to generate a first design. The generative design application then modifies the first set of design constraints based on feedback associated with a mid-air representation of the first design displayed in a virtual reality environment to generate a second set of design constraints. Subsequently, the generative design application performs one or more layout operations on the virtual objects based on the second set of design constraints to generate a second design that achieves design goal(s). Advantageously, enabling a designer to incrementally indicate design goal(s) as constraints via a virtual reality environment instead of as a predetermined objective function reduces both the time and effort required to generate designs.

The invention discloses a deep foundation pit risk assessment method based on data fusion analysis. A foundation pit engineering three-dimensional digital model constructed according to a computer aided technology can completely record and vividly display all pieces of information of foundation pit construction and can automatically generate a construction log and a monitoring report, so that a constructor or a technicist can execute operation conveniently, and the work for recording complicated construction information of foundation pit engineering is eliminated. By a finite element analysis technology and the conventional risk assessment method for static assessment, single-monitoring-item dynamic assessment and multi-monitoring-item relevance assessment, the shortcoming of fuzzy judgment of the conventional risk assessment method is overcome; through a large amount of data fusion, a series of risk sources in an engineering progress process can be comprehensively judged, and a targeted strategy is supplied; and the intelligence degree is extremely high. According to the method, a learning mode can be adopted; and a risk judgment rule is added or corrected, so that the risk assessment accuracy can be continuously completed.

The invention relates to the technical field of computer-aided hardware, and discloses a support device for a computer display, comprising a positioning frame, the bottom of the positioning frame is threadedly connected with a screw rod, the top of the screw rod is fixedly connected with a positioning plate, and the bottom of the positioning frame is welded with a nut. The bottom of the screw rod is fixedly connected with a handle, the top of the positioning frame is fixedly connected with a casing, the inner wall of the casing is threaded with a threaded rod, the top of the threaded rod is threaded with a support tube, and the surface of the support tube is provided with a limited hole. In the present invention, the height and inclination of the display screen can be adjusted through the casing, the threaded rod, the support pipe, the limit hole, the hinge, the inclined rod and the insertion rod, and the display can be adjusted through the casing, the threaded rod and the support pipe. The height of the screen can greatly adjust the inclination of the display screen through pins, hinges, handles, inserting rods and limit holes, so that the device has a simple structure, is convenient to use, and is easy to operate.

The invention discloses a universal detection method for a reflecting sphere based on computer aided correction. A reverse Hartmann test optical path structure is adopted, the structure and position parameters of a measurement system are optimized by using a computer aided technology, and therefore, the influence of the structure and position parameter error of the system on the surface shape detection result is reduced. The structure and position parameters of a measurement system are pre-calibrated by using traditional three-dimensional coordinate measurement equipment. Then, the local slopeof a reflecting sphere to be detected is measured, and surface shape error data is obtained through an integral method. On the basis, the structure and position parameters of the system are further optimized by using a computer aided technology and a numerical iterative optimization algorithm, and the structure and position parameter calibration error of the measurement system is corrected, and thus, universal reflecting sphere measurement is realized. The invention provides a universal feasible method for the high-precision measurement of a reflecting sphere, and the method has extremely important practical application value.

A system includes a processor for implementing a computer-aided technology (CAx) system, the CAx system including a graphical-user-interface (GUI) that presents a computer-aided design (CAD) model, and the CAD model includes at least one part. Furthermore, the system includes memory storing instructions that cause the processor to present the GUI, receive, via the GUI, at least one indication of an association type and an indication of at least one criteria corresponding to the at least one indication of the association type, iterate the model to identify at least one second feature that satisfies the association type and the criteria, associate and store product and manufacturing information (PMI) with the at least one second feature, generating a PMI association, and display a PMI object of the at least one second feature on the CAD model in the GUI, the PMI object including the PMI.

The invention discloses a gear box service life dynamic evaluation method based on a digital twinning model, and the method comprises the steps: building a transmission model of each gear pair in a gear box, and obtaining a translation track and a rotation track of each gear along with the change of time; correcting the elastic coefficient of each gear pair in the transmission model according to the measured motion amplitude and phase of the gear box to obtain a corrected transmission model of each gear pair; inputting the obtained current input end rotating speed and output end load of the gear box into the corrected transmission model, and combining finite element simulation analysis to obtain a rule that the stress of each position on each gear shaft changes along with time in a first detection period; and according to a fatigue analysis formula, obtaining the number of residual breakage times of each position on each gear shaft, and obtaining the percentage of the residual life ofeach position on each gear shaft after each detection. Based on the computer aided technology, the residual life of the gear box can be dynamically evaluated.

A method and system are disclosed for re-using, across plural customer accounts, information generated as part of technical solution designs by a service provider for delivering Information Technology (IT) outsourcing services to customers. The method comprises the step of providing a set of standard service elements and a set of standard service designs. The method comprises the further steps of customizing one or more of the standard service designs to generate customized service designs, generating custom service elements, and generating custom service designs associated with them. The custom service elements and service designs, and the customized service designs are stored in a tool-specific metadata repository that is accessed to promote reuse of the customizations across plural customer accounts. Usage statistics are utilized to identify when non-standard service elements and designs should be promoted to standard ones, and data mining techniques are used to infer policies associated with the non-standard service designs.

The invention relates to an artificial joint preoperative preparation system and method based on computer aided technology. The preparation system comprises a surgical joint measuring device, an operating terminal, a server and a joint prosthesis database, and the server comprises a surgical joint data storage module, a joint parameter calculation module, and a data matching module. The surgical joint measuring device is connected with the server in a communication mode, and the operating terminal is connected with the server in a communication mode. The preparation method comprises the stepsof acquiring joint information, simulating joint parameters, matching a suitable prosthesis, selecting the joint prosthesis and the like. The artificial joint preoperative preparation system and method based on the computer aided technology adopt a computer modeling method to assist the selection preparation of an artificial joint surgery, and have the characteristics of high efficiency and low accident rate.

The invention provides a method for washroom reserved hole film template reuse positioning construction, and relates to the technical field of house construction. The method comprises steps that drain pipe positioning is schemed through combining type setting of facing tiles in a washroom, template are made through a film template computer assistive technology, base point/base line are determined on the spot, and all reserved holes are positioned through laying the film template, and so on. Rapid positioning is achieved through setting the film template, and phenomenon that a large cost is needed in late period to make up faults and inaccurate positioning in positioning of the reserved holes is reduced; through-holes are reserved on a reserved pipe, then an electric portable drill is used for drilling, nuts are positioned on the upper ends of bolts, then the bolts are used for penetrating through the through-holes, so that positioning of the reserved pipe is achieved; and the bolts are taken down through a screw driver after a floor slab mould is removed, and the film template can be reused. Positioning time is saved greatly, meanwhile, standardized design of the reserved pipe is further achieved, faults are reduced greatly, and work period is shortened.

The invention relates to the technical field of building engineering, in particular to an old building structure seismic hardening method adopting the static elastic-plastic analysis technology. The method comprises the following steps that 1, a 3D scanning system is utilized for carrying out 3D scanning on a target old building, and three-dimensional entity model data is adopted; 2, the computer auxiliary technology is used for setting up a three-dimensional digital model of the old building; 3, a static elastic-plastic analysis mode is adopted for analysis, and the capacity curve of the old building structure is obtained; 4, weak portion and weak component information of the old building structure is obtained according to the capacity curve; 5, the old building structure is subjected to reinforcing design according to the weak portion and weak component information. A frame structural system is subjected to seismic performance analysis based on static elastic-plastic analysis, a weak section and a weak component of the structure are found, the structure is subjected to reinforcing design again, the performance of the structure obtained after reinforcing design is carried out again is greatly improved, seismic hardening treatment can be effectively carried out on the old building, and the seismic reliability is high.

In various embodiments, a sketching application generates models of three-dimensional (3D) objects. In operation, the sketching application generates a first virtual geometry based on a first free-form gesture. Subsequently, the sketching application generates a second virtual geometry based on a first constrained gesture associated with a two-dimensional (2D) physical surface. The sketching application then generates a model of a 3D object based on the first virtual geometry and the second virtual geometry. Advantageously, because the sketching application generates virtual geometries based on a combination of free-form and constrained gestures, the sketching application efficiently generates accurate models of detailed 3D objects.

The invention relates to the technical field of biotechnology and computer assistance, in particular to a plant test tube retrieval method and system for a plant test tube placed in a fixing support.The method is characterized by comprising the following steps: displaying an indication mark at the position of a target test tube in a virtual space comprising the target test tube rack; wherein thevirtual space is constructed according to a real space comprising a target test tube rack. According to the technical scheme, the real test tube rack comprising the target test tube and the virtual indication mark are superposed in the same virtual space in real time and exist at the same time, so that an operator can pick up the target test tube conveniently and accurately according to the indication mark. And the superposition of the indication marks is carried out in the virtual space, so that an additional effect is not generated on a real target test tube, and the consistency of test conditions can be kept.

The invention provides a method for designing and preparing a personalized segmental bone implant based on a selective laser melting technology; a regular-gradient porous structural model of the segmental bone implant is designed using the computer-aided design technology according to characteristics and requirements of a patient in combination with CT scanning results; model data are imported into finite element analysis software, biomechanical analysis is performed on the data by means of a finite element method, implant model optimization is carried out according to the biomechanical analysis results, and a reinforcing rib structure with improved strength is designed inside the model; a transition arc structure for reducing stress concentration is designed on a surface layer of the model; a cylindrical hole structure for fixing use is designed. Optimized model slicing and layering, scanning path planning, scanning parameter setting and the like are carried out through rapid formingassist software, processing data are imported into metal selective laser melting molding equipment to complete printing, and finally a regular-gradient porous segmental bone implant with reinforcing ribs, transition arcs and fixing holes is obtained.

The invention discloses a manufacturing method of a customized occlusion inducer, which relates to the technical field of occlusion inducer forming and comprises the following steps: s1, scanning andacquiring a digital dentition model of a patient; s2, designing a customized occlusion inducer mold by utilizing a computer aided technology; s3, printing the customized occlusion inducer mold througha three-dimensional printing technology; s4, injection molding; s5, trimming. According to the manufacturing method of the customized occlusion inducer, tooth measuring customization can be achieved,the correction cycle of a patient can be effectively shortened, and the better comfort degree can be provided for the patient.

The invention discloses an urban knowledge education popularization method, and relates to the field of urban knowledge education. The method comprises three stages: 1, enlightenment stage, wherein the main object of the enlightenment stage is the primary and secondary school students and a larger number of public persons who do not have urban consciousness; 2, learning stage, wherein the main object of the learning stage is the public who have urban consciousness and want to participate in urban planning, construction and operation; 3, application stage, wherein the main object of the application stage is the professionals and public who have the basic capability of participating in urban governance and want to participate in the urban governance. The method takes a unit cube as a basic unit, enables three-dimensional entities (building, road and facility) and spaces to be pixelated, covers spatial resources of all materials, and endows the materials with corresponding dimension concepts. The method is suitable for the manufacturing of an entity model teaching aid, is also suitable for the language rule of computer-aided technology, and provides a common language interface for online and offline education popularization.

The present invention relates to a system and method for molecular and/or atomic level detection of elements forming contraband such as concealed explosives, drugs, smuggled goods, etc., through the use of an acoustic frequency detector having a crystalline transducer module and elemental and mass comparator. The present invention can be employed in a non-destructive manner for the mobile and stationary inspection of objects such as luggage, persons, containers, etc., through a combination of computer-aided techniques and algorithms combined with a crystalline and oil enhanced transducer that, upon return of a system-generated acoustic signal, are used to screen and confirm explosive threats and/or other contraband.

The invention discloses a method for measuring the residual life of a fan tower. A finite element analysis model of the fan tower is constructed, modal analysis is carried out, a stress matrix of all positions of the fan tower at any historical wind speed is obtained through calculation according to obtained historical wind speed data and historical wind direction data, tower material life loss factors at all the positions of the tower under any historical wind speed are obtained, a life loss factor expected value matrix caused by fan tower loads in unit time under all historical wind speeds in unit wind direction is obtained through calculation, the life loss factor maximum expected value is obtained, and the actual perpendicularity of the fan tower is obtained through measurement; and according to the actual life factor corresponding to the actual perpendicularity, a life degradation factor of the fan tower is obtained, and the actual residual life of the fan tower is obtained through calculation. According to the method and system, historical wind speed and wind direction statistical data and fan tower design data are combined through a computer-aided technology, and the residual life of the fan tower is accurately analyzed.

The invention discloses a virtual fighting training system and method and a storage medium. The virtual fighting training system comprises a head band, a jacket, trousers, foot bands and an upper computer, wherein motion data capture modules are arranged on the head band, the jacket, the trousers and the foot bands. The upper computer is connected with each motion data capture module, the upper computer is used for acquiring motion data from each motion data capture module and generating a first virtual human, and the first virtual human is used for displaying a first action corresponding to the motion data when being displayed. The preparation process and the good process of virtual fighting training are simplified, and tedious procedures are avoided, main parts of the motion data capturemodules can be taken down from the head band, the jacket, the trousers and the foot bands, the motion data capture modules keep independent, troubleshooting, maintenance, replacement and other work can be conveniently conducted on the motion data capture modules, the use convenience is improved, and the use cost is reduced. The virtual fighting training system and method are widely applied to thetechnical field of computer assistance.

The invention relates to the technical field of computer assistance, and discloses a notebook computer heat dissipation supporting frame which comprises a supporting plate. Angle adjusting rods are movably connected to the upper portion of the supporting plate, hinge plates are hinged to the middles of the angle adjusting rods, and a support is hinged to the outer sides of the hinge plates. The purpose of adjusting the angle of the support is achieved by moving threaded blocks to change the height of the hinge plates in the vertical direction, the angle can be adjusted at will, the tedious steps of taking down a computer from the support and placing the computer on the support after adjustment are omitted under the fixation of fixing claws, and time is saved for a user; and distance adjusting rods rotate to push adjusting blocks to move along guide columns, so that the distance between a left fixing claw and a right fixing claw is adjusted, the device can be suitable for computers of various sizes, the applicability of the device is improved, control rods move to drive transmission gears to control the fixing claws to be fixed, and operation is convenient and fast.