Abstract: Techniques are described for automating the design of dental restoration appliances using neural networks. An example computing device receives transform information associated with a current dental anatomy of a dental restoration patient, provides the transform information associated with the current dental anatomy of the dental restoration patient as input to a neural network trained with transform information indicating placement of a dental appliance component with respect to one or more teeth of corresponding dental anatomies, the dental appliance being used for dental restoration treatment for the one or more teeth, and executes the neural network using the input to produce placement information for the dental appliance component with respect to the current dental anatomy of the dental restoration patient.

Abstract: IR-sensitive lithographic printing plate precursors provide a stable printout using a unique IR-sensitive image-recording layer. The IR radiation-sensitive layer includes: component (1) a free radical initiator composition; component (2) a free radically polymerizable composition; and component (3) a color-changing compound of Structure (I) having an indene structure in the conjugated chain between the aromatic terminal groups. A specific group, such as a halo group, is directly or indirectly attached to this indene structure. The infrared radiation-sensitive image-recording composition and layer also contains one or more borate ions. After infrared imaging, these precursors exhibit desirable fresh or initial printout and printout after dark storage. The precursors can be developed on-press.

Abstract: Machine learning, or geometric deep learning, applied to various dental processes and 5 solutions. In particular, generative adversarial networks apply machine learning to smile design—finished smile, appliance rendering, scan cleanup, restoration appliance design, crown and bridges design, and virtual debonding. Vertex and edge classification apply machine learning to gum versus teeth detection, teeth type segmentation, and brackets and other orthodontic hardware. Regression applies machine learning to coordinate systems, diagnostics, case complexity, and 0 prediction of treatment duration. Automatic encoders and clustering apply machine learning to grouping of doctors, or technicians, and preferences.

Abstract: IR-sensitive lithographic printing plate precursors provide a stable print-out image using a unique IR-sensitive image-recording layer. The IR radiation-sensitive layer includes: (1) a free radical initiator composition with an electron-donating agent and one or more iodonium cations; (2) a free radically polymerizable composition; and (3) a color-changing compound of Structure (I) having an indene ring in the conjugated chain between the aromatic terminal groups. The IR radiation-sensitive composition and layer also contains one or more borate ions such that the molar ratio of one or more borate ions to the one or more iodonium ions is at least 0.5:1. After IR imaging, these precursors exhibit desirable printout images both fresh and after dark storage. The precursors can be developed on-press.

Abstract: Techniques are described for automating the design of dental restoration appliances using neural networks. An example computing device receives transform information associated with a current dental anatomy of a dental restoration patient, provides the transform information associated with the current dental anatomy of the dental restoration patient as input to a neural network trained with transform information indicating placement of a dental appliance component with respect to one or more teeth of corresponding dental anatomies, the dental appliance being used for dental restoration treatment for the one or more teeth, and executes the neural network using the input to produce placement information for the dental appliance component with respect to the current dental anatomy of the dental restoration patient.

Abstract: IR-sensitive lithographic printing plate precursors provide a stable print-out image using a unique IR radiation-sensitive composition in an infrared radiation-sensitive image-recording layer. This IR radiation-sensitive composition includes: (1) a free radical initiator composition that comprises an electron-donating agent; (2) a free radically polymerizable composition; and (3) a color-changing compound that is represented by the Structure (I) having an indene ring in the conjugated chain between the aromatic terminal groups. The compound can also have a —C(?O)—OR7, —SO2—R3, or —SO2NR8R9 group wherein R7 represents a substituted or unsubstituted alkyl group having a secondary or tertiary connecting carbon that connects to the rest of the —C(?O)—OR7 group; and R8, R9, and R10 independently represent substituted or unsubstituted alkyl, aryl, or heteroaryl groups. After IR imaging, these precursors exhibit desirable printout images both fresh and after dark storage.

Abstract: IR-sensitive lithographic printing plate precursors provide a stable print-out image using a unique IR radiation-sensitive composition in an infrared radiation-sensitive image-recording layer. This IR radiation-sensitive composition includes: (1) a free radical initiator composition that comprises an electron-donating agent; (2) a free radically polymerizable composition; and (3) a color-changing compound that is represented by the Structure (I) having a conjugated carbon chain between the aromatic terminal groups. The compound also has a —SO2—R3 group wherein R3 represents alkyl, aryl or heteroaryl groups. After IR imaging, these precursors exhibit desirable printout images both fresh and after dark storage. The precursors can be developed off-press or on-press.

Abstract: Systems and methods for massive model visualization in product data management (PDM) systems. A method includes receiving 3D rendering data for a product from a PDM server system by a visualization data server (VDS) on a PDM client system network. The method includes synchronizing and updating the 3D rendering data by the VDS according to changes on the PDM server system. The method includes computing spatial hierarchies from the 3D rendering data by the VDS. The method includes serving the 3D rendering data, by the VDS, to at least one rendering machine on the PDM client system network.

Abstract: Methods for creation, storage, and processing of CAD data, and corresponding systems and computer-readable mediums. A method includes producing a three-dimensional (3D) parameter space mesh representation of a computer-aided design (CAD) model. The 3D parameter space mesh representation includes a plurality of curve-based vertices and a plurality of surface-based vertices. Each curve-based vertex corresponds to a boundary-representation (B-Rep) curve and is represented by a reference to a curve of a surface of the 3D CAD model and by at least one curve parameter value. Each surface-based vertex corresponds to a B-Rep surface and is presented as a reference to a respective surface of the 3D CAD model and a plurality of parameters on the respective surface. The method includes storing the 3D parameter space mesh representation of the CAD model.

Abstract: A lithographic printing plate precursor has a substrate comprising a hydrophilic surface and two opposing edges; a radiation-sensitive imagable layer, and optionally, a protective layer disposed over that layer. The precursor has a shear droop at each opposing edge, each shear droop having a shear droop depth Y of 20-200 ?m and a shear droop width X of 500-2000 ?m. The precursor also has a hydrophilic coating band extending from each of the two opposing edges inwardly along the hydrophilic surface independently to provide a hydrophilic coating band width A of at least 1.5 times the shear droop width X. This hydrophilic coating band comprises amphoteric surfactant(s) in an amount greater than all other surfactants. Such individual precursors are obtained by cutting a continuous radiation-sensitive web into strips and such cutting creates the shear droop that can result in edge staining if the hydrophilic coating band is not present.

Abstract: Lithographic printing plates are formed by imagewise exposing a single-layer or dual-layer positive-working lithographic printing plate precursor. The precursor has an outermost ink receptive layer containing a phenolic resin. The exposed precursor can be processed using a silicate-free developer composition having a pH of at least 12.5. This composition also includes an alkali metal hydroxide; a coating protecting agent that is a quaternary ammonium salt or phosphonium salt, or a mixture thereof, and a moderator for the coating protecting agent that is represented by the following general formula (I): wherein m is at an integer of at least 1 and up to and including 10 and M represents one or more counterions sufficient to balance the negatively-charged sulfonate groups.

Abstract: Lithographic printing plates are formed by imagewise exposing a single-layer or dual-layer positive-working lithographic printing plate precursor. The precursor has an outermost ink receptive layer containing a phenolic resin. The exposed precursor can be processed using a silicate-free developer composition having a pH of at least 12.5. This composition also includes an alkali metal hydroxide; a coating protecting agent that is a quaternary ammonium salt or phosphonium salt, or a mixture thereof, and a moderator for the coating protecting agent that is represented by the following general formula (I): wherein m is at an integer of at least 1 and up to and including 10 and M represents one or more counterions sufficient to balance the negatively-charged sulfonate groups.

Abstract: Systems and methods for massive model visualization in product data management (PDM) systems. A method includes storing a hierarchical product data structure by a product data management (PDM) system, including a plurality of occurrence nodes and component nodes. The method includes receiving a query that references an occurrence node and at least one cell index value and determining a query result corresponding to the query. The query result identifies at least one occurrence node that corresponds to the cell index value. The method includes forming a query result chain corresponding to the query result, the query result chain filtered by a structural criterion, and applying a configuration rule to the filtered query result chain to identify child nodes of the filtered query result chain that conform to the configuration rule, and thereby producing a configured spatial retrieval result.

Abstract: Systems and methods for massive model visualization in product data management (PDM) systems. A method includes storing a database for a partially-unconfigured product data structure that includes configured components and unconfigured components in a product data management (PDM) server system. The method includes responding to component identifier requests from a client system by sending requested component identifiers from the product data structure to the client system, wherein the component identifier requests correspond to visible components of an assembly represented by the product data structure. The method includes transmitting geometric data to the client system, the geometric data corresponding to configured occurrences of the product data structure associated with the requested component identifiers.

Abstract: Systems and methods for massive model visualization in product data management (PDM) systems. A method includes receiving 3D rendering data for a product from a PDM server system by a visualization data server (VDS) on a PDM client system network. The method includes synchronizing and updating the 3D rendering data by the VDS according to changes on the PDM server system. The method includes computing spatial hierarchies from the 3D rendering data by the VDS. The method includes serving the 3D rendering data, by the VDS, to at least one rendering machine on the PDM client system network.

Abstract: A method, a system, and a switch for making a bridge in the Multiple Spanning Tree Protocol (MSTP) join a region. A root bridge in a multiple spanning tree instance (MSTI) to be generated acquires region information of the MSTP; and sends a region join packet carrying the region information of the MSTP to a downstream bridge after the region information of the MSTP is configured on the root bridge, so that the downstream bridge configures the region information of the MSTP to region information of the downstream bridge. Region information may be configured on a root bridge of the MSTP and notified to a downstream bridge, so that all bridges of the MSTP join a region in which the root bridge resides.

Abstract: Systems and methods for massive model visualization in product data management (PDM) systems. A method includes storing a database for a partially-unconfigured product data structure that includes configured components and unconfigured components in a product data management (PDM) server system. The method includes responding to component identifier requests from a client system by sending requested component identifiers from the product data structure to the client system, wherein the component identifier requests correspond to visible components of an assembly represented by the product data structure. The method includes transmitting geometric data to the client system, the geometric data corresponding to configured occurrences of the product data structure associated with the requested component identifiers.

Abstract: A system, method, and computer program for organizing elements for compression, comprising nesting a hierarchical topological structure having a plurality of elements; arranging said plurality of elements in a pattern to facilitate data compression; representing said pattern as four arrays; and compressing said plurality of elements from said arrays, and appropriate means and computer-readable instructions.

Abstract: Massive model visualization in product data management (PDM) systems. A method includes storing a massive model database for a product data structure in a PDM server system, including storing a spatial bounding box hierarchy that acts as a spatial index for spatial bounding boxes of a plurality of unconfigured components of the product data structure and storing a cell table that associates cells of the spatial bounding box hierarchy to corresponding component identifiers of the product data structure. The method includes responding to component identifier requests from a client system by sending requested component identifiers from the product data structure to the client system. The component identifier requests correspond to visible components of an assembly represented by the product data structure. The method includes transmitting geometric data to the client system, the geometric data corresponding to components of the product data structure associated with the requested component identifiers.

Abstract: A system, method, and computer program for producing a visualization format from CAD data comprising producing a BREP model for visualization, wherein said BREP model has a topology component and a geometry component; removing a plurality of redundant control points from said geometry component; normalizing a plurality of knot vectors and a plurality of weight components from said geometry component; recognizing an analytic geometry from said geometry component; recognizing a plurality of equivalents from said geometry component; and converting said analytic geometry to said light model representation, and appropriate means and computer-readable instructions.