Abstract: Disclosed is a method of path optimization for an unmanned aerial vehicle (UAV). In the method, users and the positions of the users are obtained; the users are divided into K wireless multicast user groups; K initial hovering positions corresponding to the K wireless multicast user groups are determined; and a first shortest flying path connecting the K initial hovering positions is determined; and the initial hovering positions of the UAV are optimized to obtain K final hovering positions and a final flying path. The present disclosure also discloses a device of path optimization for a UAV and a computer readable storage medium.

Abstract: Disclosed is a method of path optimization for an unmanned aerial vehicle (UAV). In the method, users and the positions of the users are obtained; the users are divided into K wireless multicast user groups; K initial hovering positions corresponding to the K wireless multicast user groups are determined; and a first shortest flying path connecting the K initial hovering positions is determined; and the initial hovering positions of the UAV are optimized to obtain K final hovering positions and a final flying path. The present disclosure also discloses a device of path optimization for a UAV and a computer readable storage medium.

Abstract: Various techniques implement an electronic design with hybrid analysis techniques. An activity map is identified or generated for an electronic design. The electronic design is reduced into a reduced electronic design at least by applying a plurality of reduction processes to different portions of the electronic design based in part or in whole upon the activity map. Transient behaviors of the electronic design may be determined or predicted at least by performing one or more transient analyses on a representation of the electronic design with a simulation start point based in part or in whole upon the activity map. The electronic design may then be implemented for manufacturing at least by modifying or correcting the electronic design based at least in part upon the transient behaviors.

Abstract: Various techniques implement an electronic design with electrical analyzes with compensation circuit components. A power pin of a power net may be identified in an electronic design. The electronic design may be reduced into a reduced electronic design at least by applying one or more circuit reduction techniques to at least a portion of the electronic design. At least one load device of a plurality of load devices in the reduced electronic design may be transformed into a transformed load device. One or more design closure tasks may be performed on the electronic design using at least the reduced electronic design and the transformed load device.

Abstract: The disclosure generally describes computer-implemented methods, software, and systems, including a method for presenting information. A first graph is presented that represents plural groups, each representing an aggregated set of data points grouped based on a first set of common attributes. User input selecting a particular group is received. The aggregated set of data points is analyzed to determine whether the number of aggregated set of data points exceeds a threshold. In response to determining that the number exceeds the threshold, the aggregated set of data points is re-grouped. A second set of common attributes associated with the re-grouped set of data points is identified. The data points are aggregated based on the second set of common attributes. A second graph is provided for presentation, the updated graph representing plural groups, each group representing an aggregated subset of data points from the aggregated set of data points.

Abstract: The disclosure generally describes computer-implemented methods, software, and systems, including a method for presenting information. A first graph is presented that represents plural groups, each representing an aggregated set of data points grouped based on a first set of common attributes. User input selecting a particular group is received. The aggregated set of data points is analyzed to determine whether the number of aggregated set of data points exceeds a threshold. In response to determining that the number exceeds the threshold, the aggregated set of data points is re-grouped. A second set of common attributes associated with the re-grouped set of data points is identified. The data points are aggregated based on the second set of common attributes. A second graph is provided for presentation, the updated graph representing plural groups, each group representing an aggregated subset of data points from the aggregated set of data points.

Abstract: The disclosure generally describes computer-implemented methods, software, and systems, including a method for presenting information. A first graph is presented that represents plural groups, each representing an aggregated set of data points grouped based on a first set of common attributes. User input selecting a particular group is received. The aggregated set of data points is analyzed to determine whether the number of aggregated set of data points exceeds a threshold. In response to determining that the number exceeds the threshold, the aggregated set of data points is re-grouped. A second set of common attributes associated with the re-grouped set of data points is identified. The data points are aggregated based on the second set of common attributes. A second graph is provided for presentation, the updated graph representing plural groups, each group representing an aggregated subset of data points from the aggregated set of data points.

Abstract: The disclosure generally describes computer-implemented methods, software, and systems, including a method for presenting information. A first graph is presented that represents plural groups, each representing an aggregated set of data points grouped based on a first set of common attributes. User input selecting a particular group is received. The aggregated set of data points is analyzed to determine whether the number of aggregated set of data points exceeds a threshold. In response to determining that the number exceeds the threshold, the aggregated set of data points is re-grouped. A second set of common attributes associated with the re-grouped set of data points is identified. The data points are aggregated based on the second set of common attributes. A second graph is provided for presentation, the updated graph representing plural groups, each group representing an aggregated subset of data points from the aggregated set of data points.

Abstract: A system, method, and computer program product is disclosed for performing electrical analysis of a circuit design. A voltage-based approach is described for performing two-stage transient EM-IR drop analysis of an electronic design. A two-stage approach is performed in some embodiments, in which the first stage operates by calculating the voltage at certain interface nodes. In the second stage, simulation is performed to simulate the circuit to concurrently obtain the current at the interface nodes. In some embodiments, multiple adjacent devices as identified as interface devices for purposes of the analysis. One situation where it may be useful to analyze a larger portion of the circuitry in this way where the analysis is being performed on a netlist having a power gate.

Abstract: A system, method, and computer program product for automatically approximating conventional Monte Carlo statistical device model evaluation for circuit simulation with drastic speed improvements, while preserving significant accuracy. Embodiments enable quick inspection of the effects of process mismatch variations on single devices and even large circuits compared to standard computationally prohibitive Monte Carlo analysis. Statistical device model variation is calculated as if all such variation is due to changes in threshold voltage, even though other physical phenomena are known to contribute. Threshold voltage variation is modeled as a function of statistical variation, device size, and working bias condition. Circuit simulation is faster when the full internal device model parameter set is not rebuilt for every Monte Carlo analysis iteration. Embodiments are compatible with both conventional SPICE and newer Fast SPICE simulations.

Abstract: A method for calculating leakage current associated with an integrated circuit, includes selecting a sampling point at which an input signal for the integrated circuit is in a quiescent state and determining the leakage current associated with the integrated circuit using the selected sampling point.

Abstract: A system, method, and computer program product is disclosed for performing electrical analysis of a circuit design. A voltage-based approach is described for performing two-stage transient EM-IR drop analysis of an electronic design. A two-stage approach is performed in some embodiments, in which the first stage operates by calculating the voltage at certain interface nodes. In the second stage, simulation is performed to simulate the circuit to concurrently obtain the current at the interface nodes.

Abstract: A bag expanding device includes a base portion having two first foldable portions connected to two sides thereof along a first folding portion which is connected between the first foldable portion and the base portion. Two second foldable portions are connected to the two first foldable portions along a second folding portion which is located to connect the first foldable portion and the second foldable portion. Each of the two first folding portions and each of the two second folding portions have at least one biasing member connected thereto such that the first and second foldable portions can be expanded away from the base portion to expand the bag.

Abstract: A nozzle-contacting device of an injection molding machine includes an injection module and a mold-holding structure both set on a lathe bed. The injection module sets a nozzle at a front end thereof and a nozzle-adjusting device, which is fixed and locked on the lathe bed, at a back end thereof. The mold-holding structure includes a mold-clamping structure and an adjusting plate, wherein the mold-holding structure sets plural tie rods. A mold is fixed and locked on the adjusting plate which is sleeved on plural tie rods, and one or more driver set on a front end of a dead plate penetrates the dead plate to connect to the adjusting plate. Furthermore, the dead plate has a perforation set on a center thereof corresponding to a position of the nozzle of the injection module.

Abstract: A method and system for simulating a circuit design that includes analog and/or digital circuitry uses a hybrid system of static analysis and dynamic simulation. Once the user's circuit is read in and partitioned into stages, the input vectors are applied. A hybrid vector is used to represent a number of possible signal states, for example, a logic 0 or logic 1, as well as a number of possible signal transitions, for example, a rising signal or a falling signal. The possible combinations of states are enumerated and the network in the stage is solved for all possible combinations. The results from the network solutions for the different combinations are recomposed into the hybrid notation, which is then applied to the next stage.

Abstract: A nozzle-contacting device of an injection molding machine includes an injection module and a mold-holding structure both set on a lathe bed. The injection module sets a nozzle at a front end thereof and a nozzle-adjusting device, which is fixed and locked on the lathe bed, at a back end thereof. The mold-holding structure includes a mold-clamping structure and an adjusting plate, wherein the mold-holding structure sets plural tie rods. A mold is fixed and locked on the adjusting plate which is sleeved on plural tie rods, and one or more driver set on a front end of a dead plate penetrates the dead plate to connect to the adjusting plate. Furthermore, the dead plate has a perforation set on a centre thereof corresponding to a position of the nozzle of the injection module.

Abstract: A method and system for simulating a circuit design that includes analog and/or digital circuitry uses a hybrid system of static analysis and dynamic simulation. Once the user's circuit is read in and partitioned into stages, the input vectors are applied. A hybrid vector is used to represent a number of possible signal states, for example, a logic 0 or logic 1, as well as a number of possible signal transitions, for example, a rising signal or a falling signal. The possible combinations of states are enumerated and the network in the stage is solved for all possible combinations. The results from the network solutions for the different combinations are recomposed into the hybrid notation, which is then applied to the next stage.

Abstract: A device for clamping electromagnetically molds of the injection molding machine comprises a stand on which a fixed board and a guiding mechanism are mounted. A movable board is slidably mounted on the guiding mechanism to slide back and forth in relation to the fixed board. The fixed board is provided with a male mold mounted thereon. The movable board is provided with a female mold mounted thereon. The sliding motion of the movable board toward the fixed board brings about the mold opening action, the mold closing action, and the mold locking action. The movable board and the fixed board are provided with a magnetic force generating mechanism for effecting attraction or repulsion between the movable board and the fixed board. The attraction serves to effect the mold closing action and the mold locking action. The repulsion serves to effect the mold opening action.

Abstract: A speed-up mechanism for an injection molding machine has a front fixed plate having a through hole at the center; a rear fixed plate arranged parallel with the front fixed plate, and the rear fixed plate having at least one through hole; at least two guide bars parallel to each other arranged between the front fixed plate and the rear fixed plate in an equal distance; a movable plate slidably arranged on the guide bars between the front fixed plate and the rear fixed plate, and capable of moving toward and away; a rotary power source fixed on one side of the movable plate for providing rotary power, the rotatry power source comprising a transmission device; a fixed nut mounted on the rear fixed plate; at least one ball screw having two threads in opposite directions at two ends, the front end is engaged with the transmission device for generating a radial rotation, the rear end is engage with the fixed nut and through the rear fixed plate to generate an axial movement for the ball screw during the rotation;

Abstract: Methods and apparatus for generating a hierarchical representation of a circuit include obtaining a netlist corresponding to the circuit, the circuit including a plurality of subcircuits. A hierarchical representation of the circuit is then generated from the netlist, the hierarchical representation including the plurality of subcircuits arranged among a plurality of levels of the hierarchical representation. Each one of the plurality of subcircuits has an associated subcircuit definition. In addition, each of a plurality of subsets of the subcircuits share a same subcircuit definition, where memory storage for the same subcircuit definition is shared by the subcircuits in each of the subsets. Moreover, each one of the plurality of subcircuits has a dynamic voltage state.