Abstract: A method for simulating an arc flash event on an electrical power system is disclosed. The virtual system model of the electrical system is modified to introduce a short circuiting feature. The standard to supply equations used in the arc flash event calculations is chosen. The arc flash event is simulated using the modified virtual system model in accordance with the chosen standard. The quantity of arc energy released by the arc flash event is calculated using results from the simulation. The report that forecasts an aspect of the arc flash event is communicated.

Abstract: There is provided a consumption energy calculating device which simulates power consumption of a heating and cooling appliance operated by a customer living in a house. A first receiver and a second receiver receive a demand response signal and an external environmental factor parameter. A pain level model shows a relationship between an indoor air temperature and a pain level. A first calculator calculates, when the appliance is not in operation, the indoor air temperature of a next sample time. A second calculator calculates, when the appliance is in operation, determines the indoor air temperature of the next sample time. A working sequence generator determines whether the appliance is or not to be operated during the next sample time. The power consumption determination unit determines power consumption consumed by the appliance before the next sample time and outputs data showing the power consumption.

Abstract: In a fast simulation technique, the output node of a power supply module of the integrated circuit can be designated as an ideal power node. At this point, the power supply module can be designated a fan-in block and any blocks connected to the power node can be designated fan-out blocks. Then, DC initialization and transient simulation for each time step can be performed for the circuit. During the transient simulation, any inter-relationship of the fan-out blocks can be determined and a sensitivity model can be calculated for each fan-out block. Because the power node is designated as an ideal power node, the results of the sensitivity model for each fan-out block can be added asynchronously to a total loadings of the power node. The total loadings can be loaded into a matrix, which is computed for the fan-in block, and a simulation waveform point can be output.

Abstract: Methods of selecting spectral elements and system components for a multivariate optical analysis system include providing spectral calibration data for a sample of interest; identifying a plurality of combinations of system components; modeling performance of a pilot system with one of the combinations of system components; determining optimal characteristics of the pilot system; and selecting optimal system components from among the combinations of system components.

Abstract: Methods for generating waveforms with realistic transitions, controllable timing jitter, and controllable amplitude noise in a computer-based simulation environment are disclosed. A first method includes obtaining signal information for one or more parallel data signals. In one embodiment, signal information for the one or more parallel data signals is mapped from an HDL format to a new time scale, and during this operation, timing jitter is added independently to the parallel data signals. These jittery parallel data signals may then be returned to the original HDL format, or another format, for simulation. In another embodiment, rather than mapping to a single time vector, information from each signal is modified to have a time scale commensurate with noise and jitter to be added. Timing jitter is superimposed onto each transition, rise and fall times are incorporated, and missing voltage and timing information for each data signal is interpolated into vectors representing the signals.

Abstract: Techniques for monitoring and predicting environmental operating conditions in a data center are provided. In one aspect, a method for real-time, three-dimensional analysis of environmental operating conditions in a data center includes the following steps. High spatial resolution three-dimensional measurements of one or more environmental variables in the data center made at a time t1 are obtained. Real-time measurements of the environmental variables in the data center made at a time t2, wherein t2 is later in time than t1, are obtained. The high spatial resolution three-dimensional measurements are combined with the real-time measurements to derive a model for the environmental variables in the data center at the time t2. The model is used to predict three-dimensional distributions of the environmental variables in the data center at the time t2. A base model can be created and used to derive the model for the data center at the time t2.

Abstract: A method of telephone call management in process of service development that allows a user to model and create telephone call management schemes independent of telecommunications protocols and network layer details. The method of the invention operates by creating an abstract model of a telephone call life-cycle that is converted, using a set of communication threads, into executable code. Models in accordance with the method of the invention are constructed using an Integrated Development Environment (IDE) for creating and developing telecom services that embodies the Telecom Service Domain Specific Language (TS-DSL) which is implemented as a Unified Modeling Language (UML) extension for the telecom domain. By this method, individuals without specialized knowledge of telecom related software programming and protocols can successfully design and implement telecom services that manages calls.

Abstract: A computer simulation of machining of an object by a motion of a tool is described. The object is represented by a boundary representation (BP) object, wherein the BP object includes a boundary representation of a surface of the object, wherein the motion is represented by a set of swept volumes, wherein the set of swept volumes includes a first set of implicit functions defining a surface of the set of swept volumes. The simulation includes determining a proxy object having a second set of implicit functions defining a surface of the proxy object; simulating the machining of the proxy object with the set of swept volumes to produce a machined proxy (MP) object having a third set of implicit functions defining a surface of the MP object; rendering an image of a Boolean intersection between the MP object and the BP object.

Abstract: An apparatus for testing a subsystem of a plurality of subsystems capable of being assembled to form an integrated system may include an integration stand for testing the subsystem without actual physical assembly of the plurality of subsystems which form the integrated system. The integration stand may include an interface to connect the subsystem to the integration stand for testing. The integration stand may also include a network device for connecting the integration stand to a communications network for communications between the subsystem and any other subsystems of the plurality of subsystems available via the network. In this way, the subsystem and the other subsystems may be virtually assembled and integrated to virtually form the integrated system for interoperability of the subsystems and testing without actual physical assembly of the plurality of subsystems.

Abstract: A method for simulating a response of a circuit to an ESD input stimulus applied to the circuit includes the steps of: receiving a description of the circuit into a circuit simulation program, the circuit including at least one mutual inductance element indicative of magnetic coupling in the circuit; generating a linear approximation of nonlinear elements in the circuit at respective DC bias points of the nonlinear elements; obtaining a frequency domain transfer function of the circuit; obtaining a time domain impulse response of the circuit as a function of the frequency domain transfer function; integrating the time domain impulse response to yield a step response of the circuit, the step response being indicative of a response of the circuit to the ESD input stimulus; and analyzing the step response of the circuit to determine whether the circuit will operate within prescribed parameters corresponding to the circuit.

Abstract: A method for modeling conveyance or flows of material or other functional behaviors, particularly in the form of components that generate material actions; a method for modeling a system having components, particularly a postal item distribution system, and; the generation of a discrete component-oriented simulation model based on the modelings, particularly as a basis for components and/or system implementation. Modeling of each component is carried out on the basis of a flexible component model that takes the input behavior and the functional behavior of a component into account, and that two components at a time transfer discrete events or discrete material units to one another by using a general communications model, particularly by using communication types.

Abstract: Predicting the remaining life of individual aircraft, fleets of aircraft, aircraft components and subpopulations of these components. This is accomplished through the use of precomputed databases of response that are generated from a model for the nonlinear system behavior prior to the time that decisions need to be made concerning the disposition of the system. The database is calibrated with a few data points, to account for unmodeled system variables, and then used with an input variable to predict future system behavior. These methods also permit identification of the root causes for observed system behavior. The use of the response databases also permits rapid estimations of uncertainty estimates for the system behavior, such as remaining life estimates, particularly, when subsets of an input variable distribution are passed through the database and scaled appropriately to construct the output distribution.

Abstract: A method for predicting time-lapse seismic timeshifts in a three-dimensional geomechanical system including defining physical boundaries for the geomechanical system. In addition, one or more reservoir characteristics such as pore pressure and/or temperature history are acquired from multiple wells within the physical boundaries. The method also includes determining whether a formation in the geomechanical system is in an elastic regime or a plastic regime. The method also includes obtaining first and second seismic data sets for the geomechanical system, taken at first and second times. The method also includes running a geomechanical simulation to simulate the effects of changes in pore pressure or other reservoir characteristic on time-lapse seismic timeshifts in the formation.

Abstract: A computer program product, apparatus and method for emulating channels in a multi-tasking multi-processor environment, including identifying a plurality of physical channels having an associated physical channel identifier for each of the plurality of physical channels, associating an emulated channel from a plurality of emulated channels for each of the plurality of physical channels, thereby generating a plurality of emulated channels, each of the plurality of emulated channels having a virtual channel identifier, mapping the plurality of emulated channels on a communications link, thereby generating an emulated channel path for each of the plurality of emulated channels, defining a queue pair link buffer from a plurality of queue pair link buffers for each of the emulated channels and increasing a number of queue pair link buffers.

Abstract: Embodiments of the invention provide a computer-aided design (CAD) application configured for generating interactive truss objects in a CAD model. In one embodiment, a truss creation tool allows the user to select a truss family and the endpoints of the truss. Based on these selections, the truss creation tool generates a layout and structural members of a truss. The truss may be maintained as an interactive object within the CAD model. Thus, a user may edit the truss object, resulting in the regeneration of the truss layout and the regeneration of the structural elements of the truss.

Abstract: The disclosed methods, mechanisms, and system provide the ability to associate one or more disjointed models such that a second model can be accessed from a first model thereby allowing easier navigation between models. A graphical link to a second model is provided as part of a first model. Activating the graphical link opens the second model for viewing or editing. Links between additional models may also be provided. Thus, by using the provided graphical links, a user may quickly and easily navigate between all the associated models.

Abstract: A method is provided for determining optimum positions in a region for a plurality of sensors that are capable of detecting occurrence of a hazard in the region. The hazard may be a chemical, biological, and/or radiological hazard in solid, liquid or gas form. A “simulation cache” is provided that stores data representing interaction of the hazard with sensors at each of the plurality of candidate locations in the region for each of the plurality of sensor types. Data is then retrieved from the simulation cache as needed for evaluation a particular candidate sensor solution comprising one or more sensors of one or more sensor types at corresponding ones of the candidate locations. An optimization algorithm may be used to select a candidate sensor solution. The data that is retrieved from the simulation cache for a selected candidate sensor solution is evaluated with respect to certain performance criteria.

Abstract: A method of generating discrete event simulation data using a query is provided herein. The method includes retrieving a trajectory specifying a service access event for a customer accessing a service in a simulation. The method also includes processing, in a relational database query, one or more pending events corresponding to one or more customers accessing the service before the customer. Additionally, the method includes processing, in the relational database query, the service access event. Processing the service access event occurs after processing the one or more pending events. The method also includes providing a result for the relational database query. The result comprises the trajectory, and the one or more trajectories.

Abstract: Included are a table creating unit that creates, for a three-dimensional CAD model, tabular data that describes change logic for each changed state, the change logic associating a changed state with a condition to be satisfied to shift to the changed state, the changed state being a form after transformation of the three-dimensional CAD model; a data converting unit that converts each change logic set in the created tabular data into a description in a certain program language, and creates a model built-in program; an model built-in program IO unit that registers the converted model built-in program to the three-dimensional CAD model; and a three-dimensional CAD software-program unit that transforms the three-dimensional CAD model when receiving an operation for transforming the three-dimensional CAD model, based on the operation and a change logic described in a model built-in program registered to the three-dimensional CAD model.

Abstract: Various embodiments of the present invention are generally directed to an apparatus and method for recovering data from a signal generator using a native communication channel and an emulated communication channel coupled in parallel to the native communication channel.