Abstract: Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.

Abstract: Embodiments provide methods and systems for modifying a finite element mesh representation of a three-dimensional model. A method according to an embodiment defines a symmetric constraint of a finite element mesh where the finite element mesh represents a subject 3D model and the symmetric constraint comprises two asymmetric zones of the finite element mesh to be modified symmetrically. Next, corresponding finite elements between the two asymmetric zones are identified and a topological manipulation to at least one of the identified corresponding finite elements is performed. In response, the topological manipulation is performed symmetrically on the identified finite element corresponding to the at least one finite element. In such an embodiment, performing the manipulation symmetrically results in the two asymmetric zones being modified symmetrically and represents a symmetrical topological modification in the subject 3D model.

Abstract: A method including: generating an updated subsurface property model of a subsurface region, with a computer, from an initial estimate of the subsurface property model by performing an iterative inversion, which includes inverting geophysical data to infer the updated subsurface property model, wherein the generating the updated subsurface property model includes linearly remapping the initial estimate of the subsurface property model based on an inverse of a regularization operator, included with the initial estimate of the subsurface property model, into one in which the regularization operator is represented by an identity matrix, performing a unitary matrix decomposition in order to group the identity matrix with sparse matrices output from the unitary matrix decomposition, and performing a search over at least one trade-off parameter to reduce a misfit between simulated data generated from a most recent estimate of the subsurface property model and the geophysical data until a predetermined stopping crite

Abstract: A method for analyzing spatial point patterns and visualizing the results is presented. The method includes simulating at least one point set within a region using a point process, dividing the region into a plurality of elements, determining scores for both real data and simulated data for each element by weighting the point sets within a domain of a predetermined kernel. The method further includes comparing scores for each element, computing confidence intervals for at least one confidence level having a predetermined statistical significance; and providing a visualization to identify clusters and exclusion zones.

Abstract: Systems and methods for determining an optimum number of PV modules and predicting energy generation for a solar photovoltaic (PV) system are disclosed. In one embodiment, a method is provided that includes receiving an address and zip code of a proposed installation site, and displaying an image of the proposed installation site. The method includes receiving an input identifying a mounting plane on the image, displaying the mounting plane, determining an optimum number of PV modules that would fit within the mounting plane, and displaying the optimum number of PV modules on the mounting plane. The method includes sending a request for roof pitch data for neighboring sites within the zip code, receiving the roof pitch data, determining an average roof pitch based on the roof pitch data, and predicting PV generation based on the number of PV modules in the mounting plane and the average roof pitch.

Abstract: Embodiments provide methods and systems for modifying a finite element mesh representation of a three-dimensional model. A method according to an embodiment defines a symmetric constraint of a finite element mesh where the finite element mesh is a representation of a subject 3D model and the symmetric constraint comprises two asymmetric zones of the finite element mesh to be modified symmetrically. Next, corresponding finite elements between the two asymmetric zones are identified and a manipulation to at least one of the identified corresponding finite elements is performed. In response, the manipulation is performed symmetrically on a second or more of the identified corresponding finite elements where the second or more finite elements were identified as corresponding to the at least one finite element. In such an embodiment, performing the manipulation symmetrically results in the two asymmetric zones being modified symmetrically and represents a symmetrical modification in the subject 3D model.

Abstract: A method is disclosed for the estimation of subsurface temperature distributions from a 3-dimensional heat conductivity model for a geological formation. The method may be characterized by the following steps: (a) obtaining measured data corresponding to a geological subsurface formation of interest including seismic survey data, in-well temperature, seafloor or surface heat flux measurements and laboratory-based measurements of core porosity, (b) estimating a relationship between seismic velocity and heat conductivity, wherein seismic velocity is linearly dependent on porosity and heat conductivity is exponentially or linearly dependent on porosity, and (c) calibrating the model to the measured in-well data and laboratory-based measurements of core porosity.

Abstract: Methods and systems for computing notional source signatures from modeled notional signatures and measured near-field signatures are described. Modeled near-field signatures are calculated from the modeled notional signatures. Low weights are assigned to parts of a source pressure wavefield spectrum where signatures are less reliable and higher weights are assigned to parts of the source pressure wavefield spectrum where signatures are more reliable. The part of the spectrum where both sets of signatures are reliable can be used for quality control and for comparing the measured near-field signatures to modeled near-field signatures. When there are uncertainties in the input parameters to the modeling, the input parameters can be scaled to minimize the differences between measured and modeled near-field signatures.

Abstract: A method and system for simulating patient-specific cardiac electrophysiology including the effect of the electrical conduction system of the heart is disclosed. A patient-specific anatomical heart model is generated from cardiac image data of a patient. The electrical conduction system of the heart of the patient is modeled by determining electrical diffusivity values of cardiac tissue based on a distance of the cardiac tissue from the endocardium. A distance field from the endocardium surface is calculated with sub-grid accuracy using a nested-level set approach. Cardiac electrophysiology for the patient is simulated using a cardiac electrophysiology model with the electrical diffusivity values determined to model the Purkinje network of the patient.

Abstract: Disclosed aspects relate to managing a group of geometric objects. The group of geometric objects are correlated to a set of spatial zones associated with an architectural layout. A first geometric object of the group of geometric objects is detected. The first geometric object has a first geometric object size value. By comparing the first geometric object size value with a threshold geometric object size value, it is determined to convert the first geometric object. Based on proximity, a group of conversion candidates is identified from the group of geometric objects. Based on the first geometric object and the group of conversion candidates, a second geometric object is determined using a geometric criterion. Using the second geometric object, a design-model of the architectural layout is established.

Abstract: In a computer-aided resin behavior analyzer that analyze behavior of a continuous fiber and long discontinuous fiber incorporated in a resin during molding in a mold under predetermined molding conditions through a simulation program installed on a computer, the simulation program is configured to calculate, when analysis conditions including at least multiple nodes F of the fiber is inputted, a bending rate Af of the fiber with respect to an evaluated length obtained from at least one node Fn among multiple nodes F anticipated under the molding conditions based on the analysis conditions, and to evaluate bending of the fiber based on the bending rate Af with respect to the evaluated length.

Abstract: A method, system, and computer-readable storage medium are disclosed for simulation of a stateful brush tip. A tip of a brush tool is modeled using a data structure. A user input is collected representing a stroke made on a virtual canvas with the brush tool. The stroke is made with the tip in a first state. A second state of the tip is determined dependent on the first state of the tip and the user input. The second state represents a different shape of the tip than the first state. The second state of the tip is stored using the data structure.

Abstract: A method for producing a complex product, in particular a motor vehicle, wherein a component is constructed for the product. Data having a three-dimensional representation of the component is generated in a first data format for a first program and data having meta-information on the three-dimensional representation of the component is generated in an electronically searchable data format for a second program. Additionally, the data having the three-dimensional representation of the component in the first data format is embedded into the data in the second data format. A third program is provided for establishing communication between the first and the second program.

Abstract: A building loses or gains heat through its envelope based on the differential between the indoor and outdoor temperatures. The losses or gains are due to conduction and infiltration. Conventionally, these effects are typically estimated by performing an on-site energy audit. However, total thermal conductivity, conduction, and infiltration can be determined empirically. The number of air changes per hour are empirically measured using a CO2 concentration monitoring device, which enables the infiltration component of total thermal conductivity to be measured directly. The conduction component of thermal conductivity can then be determined by subtracting the infiltration component from the building's total thermal conductivity.

Abstract: A system for developing HVAC system configurations for a building may develop suggested HVAC system configurations based, at least in part, on obtained building information. A user interface may accept building information that at least partially defines an interior or exterior of a building. The building information may include, among other information, current HVAC system configuration information for an HVAC system of the building including current locations of register vents within the building. A processing module in communication with the user interface may determine one or more suggested HVAC system configurations based, at least in part, on building information accepted at the user interface. The user interface may display the suggested one or more HVAC system configurations to a user.

Abstract: A method of generating an optimized design model for a composite laminate may include computing a normalized set of lamination parameters and laminate stiffness matrices of an initial laminate design, and determining, using an optimizer operating on a finite element model, optimum values for the lamination parameters and the laminate thickness. The method may further include adjusting the optimum value of the laminate thickness, and performing an inversion process extracting multiple solutions from the lamination parameters, each solution including a unique set of individual fiber angles for each ply and representing an optimized design model of the composite laminate.

Abstract: A controller for a building system receives training data that includes input data and output data. The output data measures a state of the building system affected by both the input data and an extraneous disturbance. The controller performs a two-stage optimization process to identify system parameters and Kalman gain parameters of a dynamic model for the building system. During the first stage, the controller filters the training data to remove an effect of the extraneous disturbance from the output data and uses the filtered training data to identify the system parameters. During the second stage, the controller uses the non-filtered training data to identify the Kalman gain parameters. The controller uses the dynamic model with the identified system parameters and Kalman gain parameters to generate a setpoint for the building system. The building system uses the setpoint to affect the state measured by the output data.

Abstract: Techniques for estimating time remaining for an operation are described. Examples operations include file operations, such as file move operations, file copy operations, and so on. A wide variety of different operations may be considered in accordance with the claimed embodiments, further examples of which are discussed below. In at least some embodiments, estimating a time remaining for an operation can be based on a state of the operation. A state of an operation, for example, can be based on events related to the operation itself, such as the operation being initiated, paused, resumed, and so on. A state of an operation can also be based on events related to other operations.

Abstract: Methods according to the present invention provide computationally efficient techniques for designing gauge patterns for calibrating a model for use in a simulation process. More specifically, the present invention relates to methods of designing gauge patterns that achieve complete coverage of parameter variations with minimum number of gauges and corresponding measurements in the calibration of a lithographic process utilized to image a target design having a plurality of features. According to some aspects, a method according to the invention includes transforming the space of model parametric space (based on CD sensitivity or Delta TCCs), then iteratively identifying the direction that is most orthogonal to existing gauges' CD sensitivities in this new space, and determining most sensitive line width/pitch combination with optimal assist feature placement which leads to most sensitive CD changes along that direction in model parametric space.

Abstract: A system that comprises a receiver port to receive lens system design specifications; and a processor to: select a lens system type that includes one or more preliminary lenses, the selecting based, at least in part, on the lens system design specifications; from a lens database, select one or more catalog lenses to add to or replace the one or more preliminary lenses of the lens system type to construct a lens system; vary distances between or among the one or more catalog lenses and/or the one or more preliminary lenses of the lens system; and as the distances vary, determine optical behavior of the lens system.