257 results about "Response analysis" patented technology

A system and method are provided for smoothing the in-room acoustic magnitude response of an audio reproduction system. An in-room acoustic magnitude response analysis is performed to determine a room resonance induced peak associated with an audio signal. A replica of the audio signal is filtered at the room resonance induced peak. The filtered replica signal is added with the audio signal. Through this, smoothing of the room resonance induced peak may be achieved, such that a subjective impression of transient response and dynamics of the audio signal are preserved.

A system and method for price and promotion response analysis is provided. Such a system is useful for a business to analyze the forecasted lifts associated with changes in price and promotion activity. The system sets the configuration of the response report, which includes price change and promotion change intervals. Promotions include temporary price reductions, displays, ads and multiples. Modeling data is received for the products. Forecasts, both non-cannibalistic and cannibalistic, are generated for the sales of the products dependent upon the price change and promotion change intervals. Forecasts include at least one of product forecasts, demand group forecasts, line level forecasts and category level forecasts. Suspect forecasts below a minimum confidence may be flagged. Confidence matrices may be generated which reflect accuracy of the forecasts. The response report may be generated by collecting the forecasts and the confidence matrices according to the configuration of the response report.

The interactive personal information system and method delivers personalized information to users by having a publisher, or a multilevel structure of primary and secondary publishers, collect information items into at least one database for periodic delivery of collections of information items to users as personalized information. The collections are selected based on user profiles that are refined based on collecting and analyzing subjective responses from the users. The personalized information can be delivered in various formats and can include various interactive tools to increase its utility. Different levels of publishers can provide information items and response analysis to other publishers. Information items can be sought by publishers based on user requests and response analysis.

A system and method for diagnosing deficiencies and assessing knowledge in test responses comprises a computerized testing station for presenting a question to a responder. An initial response analyzer communicates with the testing station for determining the correctness of an initial response by the responder to the question. A necessary knowledge determiner is disposed to analyze an incorrect initial response from the initial response analyzer for detecting responder's deficiencies in past cumulative knowledge and in new subject matter knowledge. A cumulative knowledge analyzer is provided for analyzing the incorrect initial response for identifying specific deficiencies in past cumulative knowledge. A production rule analyzer is provided for analyzing the incorrect initial response for identifying specific deficiencies in new subject matter knowledge. Finally, a report generator communicates with the cumulative knowledge analyzer and the production rule analyzer for generating a written deficiency report.

The invention relates to a fatigue life prediction system for a vehicle body structure of a vehicle in the technical field of vehicle design. The prediction system adopts a road spectrum fitting module to establish a combined road spectrum suitable for a field test; a vehicle body loading spectrum acquisition module is adopted to establish an entire vehicle multi-body rigid-flexible coupled model so as to extract the load-time-history at a connecting passage of the vehicle body and a chassis as the input of vehicle body excitation; an automobile body structure dynamic response analysis module is adopted to establish a finite element model of the vehicle body so as to obtain the static stress history generated by gravity and the dynamic stress history generated by road surface excitation of the vehicle body when the vehicle is under the excitation of the combined road spectrum; a dangerous position identifying module of low fatigue life of the vehicle body is adopted to quickly search dangerous positions of low fatigue life through an S-N method and a Miner linear accumulated damage model, and determine the multiaxial stress state of the dangerous positions by using 'biaxiality' analysis; and a fatigue life prediction module of the vehicle body structure is adopted to predict the fatigue lives of the dangerous positions accurately. The fatigue life prediction system for the vehicle body structure can improve the speed and the precision of the fatigue life prediction for the vehicle body structure so as to provide a reference for a real vehicle test.

A system for detecting unauthorised use of a network is provided with a pattern matching engine for searching attack signatures into data packets, and with a response analysis engine for detecting response signatures into data packets sent back from an attacked network/computer. When a suspect signature has been detected into a packet, the system enters an alarm status starting a monitoring process on the packets sent back from the potentially attacked network/computer. An alarm is generated only in case the analysis of the response packets produces as well a positive result. Such intrusion detection system is much less prone to false positives and misdiagnosis than a conventional pattern matching intrusion detection system.

A vehicle system structure vibration and noise transmission path detecting system belongs to the technical field of automobile design. In the invention, a vehicle system analysis model building module builds incentive related bus, vehicle structure and acoustic cavity models and sets up a vehicle system analysis model; a vibration or noise response spectrum acquiring module acquires the vehicle structure vibration or passenger indoor structure noise response analysis; a transfer path power calculating module calculates the transfer power of all transfer paths and the total power transferred to the vehicle; a main transfer path detecting module calculates and orders the contribution of all the transfer paths, and identifies the main transfer paths; an optimized design module identifies the main influential factors for transfer of the power flow of the main transfer paths, applies an optimized design method to improve relevant bus characteristic parameters and structure types, and verifies the parameters in the vehicle system or the vibration absorbing and noise reducing effect after structure improvement. The vehicle system structure vibration and noise transmission path detecting system can improve the accuracy of transfer path identification and possibility of effective control to the transfer paths.

A method and system that uses electronic message delivery combined with data collection techniques and data-mining methods to determine and enhance the effectiveness of a given communication and to optimize the target audience of the given communication. One embodiment of the system utilized in practicing the method also includes a means for collecting real-time, synchronized survey audience response data with respect to the videos presented and a data-mining tool for analyzing the data collected and the streaming videos presented. One embodiment of the system includes an audience manager (12), and invitation manager (14), and order manager (16), and a message manager (18). In one embodiment, the message manager (18) includes a testing process (20), a scoring process (22), a ranking process (24), and a response analysis process (26).

The invention discloses a method for optimally designing dynamic property of a complete machine tool, which comprises the following steps of: establishing a complete machine tool entity parameterized model, simplifying the structure according to the analysis requirement on the dynamics and the structure characteristic of the machine tool; and guiding the simplified entity model into a finite element analyzing software ANSYS/Workbench for grid division to obtain a complete machine finite element model. The statics analysis is carried out through the ANSYS/Workbench to obtain a complete machine prestress field, and the mode of the complete machine tool under the prestress field is obtained through the mode analysis. The complete machine tool dynamics response of a main shaft, caused by a cutting force, under different rotating speeds is obtained through resonance response analysis on the complete machine tool, and the reference is provided for the searching of the dynamics thin link and the optimization design. Finally, by using the parameterized analysis method, the rule of influencing the complete machine tool dynamic property by the structure quality and the rigidity parameter is obtained, and the dynamic rigidity thin link is obtained and optimally designed.

The invention discloses a regional energy comprehensive coordination management and control system. The system comprises a regional operation monitoring subsystem, a distributed power forecasting subsystem, a load cluster prediction response analysis subsystem, a fault fast processing subsystem, an energy analysis and management subsystem, an electric vehicle optimal scheduling subsystem and a regional multi-level energy comprehensive coordination control subsystem. The regional energy comprehensive coordination management and control system achieves comprehensive operation monitoring of power sources, power grids and user loads in a region and forecasting, analysis and scheduling of a variety distributed energy resources on the basis of multi-source information integration, achieves rapid fault diagnosis and processing of the power grid, achieves load forecasting, energy consumption analysis, energy saving management and electric vehicle intelligent scheduling of users and achieves reasonable distribution and pluralistic complementary of regional energy through comprehensive coordination of energy interaction among the power sources, the power grids and the user loads, thereby greatly increasing the energy efficiency and enabling the power grids to be in economical and efficient operation.

The invention discloses an analysis method for testing the fatigue life of components based on vibration signals. The analysis method comprises the following steps that (1) a power spectral density function Ga (f) of working field random vibration acceleration load of the components is calculated according to the acquired random vibration acceleration load time domain signals xa(t) of the components; (2) a stress frequency response function HS(f) under the unit acceleration (1g) load of the components is solved by utilizing finite element harmonic response analysis; and a stress power spectral density function of the structure is acquired through combination of (1) based on the working field random vibration acceleration load of the components; and (3) a stress load distribution probability density function of the components is solved according to a Dirlik method by utilizing the working field random vibration acceleration load power spectral density of the components, and a random vibration fatigue analysis load spectrum is established to perform random vibration fatigue analysis on the components. The problem that stress amplitude information of the components working in the complex working conditions is difficult to obtain directly and fatigue life pre-estimation cannot be performed can be solved.

The present invention provides a built-in self-testing method of FPGA input/output module. Firstly all input/output modules in FPGA are configured to that a bidirectional IO buffer is used as a circuit to be tested. The logical resource of middle part of FPGA device is configured to a test vector generating circuit. The logical resource surrounding the IO buffer is configured to an output response analysis circuit of scanning chain structure. In testing, the test vector generating circuit generates a pseudo-random exhaustive vector for exerting a test pattern for each circuit to be tested; after executing the test vector, actuating the operation of scanning chain of output response analysis circuit, outputting the built-in self-testing result which is configured this time by the input/output module in the control of test clock by the output response analysis circuit until when the test covers all resources in the input/output module. The method of the invention has the following advantages: simplified built-in self-testing result retrieval mode, reduced test configuration number of times, reduced test cost and increased test efficiency under the precondition of guaranteeing 100% test coverage rate.

The invention relates to the field of communications, and discloses a web service mapping method and a system of a security agent in a virtual private network (VPN). Web response analysis and rewriting processes are simplified, achieving is easy, and stability and efficiency are high. In the web service mapping method and the system of the security agent in the VPN, the mapping relation of a domain name or a port which supplies web services and security agents is preset by the security agent in the VPN, wherein different web services correspond to different domain names or different ports. When the security agent receives a web service request from a client terminal, a corresponding web service is found from the mapping relation according to the domain name in the request or the port which receives the request, and the request is forwarded to a web server which supplies the web service. When the security agent receives a web response from the web server, according to the mapping relation, chaining which points to the web service in the web response is replaced by chaining which points to a corresponding domain name or a corresponding port of the security agent, and then the replaced web response is forwarded to the client terminal.

The invention provides a coaxial rigid rotor coupling pneumatic elastic response analysis method, and belongs to a helicopter kinetic analysis technology. The method is characterized in that according to the operation and control characteristics of a coaxial rigid rotor helicopter, a balance equation optimization solution method is built, and an optimization solution is found according to the given target and constraint conditions. According to the characteristic of complicated coaxial rigid rotor flow field environment, a rotor flow field is calculated by using a computational fluid dynamic method based on an Euler/N-S equation; and then, the coupling pneumatic elastic response is calculated by using a computational fluid dynamic/computational structural dynamic loose coupling analysis method. The coaxial rigid rotor coupling pneumatic elastic analysis method has the advantage that when the analysis method is used, balance operation and control parameters, blade response, rotor loads and the like of the coaxial rigid rotor helicopter can be calculated. The method has good analysis precision and engineering applicability; the relying of the development process on the test can be reduced; and the design period and the development cost can be greatly reduced.

An IP address duplication monitoring device that performs monitoring for IP address duplication of a device to be monitored that is connected through a router and a network, when a LAN is connected with a network outside the LAN through a router provided with an ARP cache in which a set comprising an IP address and a lower layer address which is an address of a lower layer than the IP layer is held for a fixed period, and a device to be monitored, which is a device that provides a service to the network, is present in a LAN, the IP address duplication monitoring device having: a service request issuing section that sends a plurality of service requests to the device to be monitored; a service response analysis section that receives service responses obtained as a result of the service requests; and a monitoring section that generates an instruction for a service request to said service request issuing section at prescribed time intervals, that compares said plurality of service responses obtained from said service response analysis section and that makes a decision as to the existence of IP address duplication based on the results of this comparison.

Provided is a sensor distribution method for a bowstring arc bridge structure made of special-shaped steel tube concrete. After an integrated finite element model in a full-bridge structure is established and a refined submodel of an inverted triangle rigid frame and a concrete-steel composite beam is built and incision boundary nodes of the submodel of the inverted triangle rigid frame and the concrete-steel composite beam are defined, structural response analysis is performed on the integrated finite element model with the full-bridge structure to determine vulnerability of an integrated stress construction member and monitoring content and monitoring positions on a structural stress integrated analysis layer. Values of freedom degrees of boundary nodes of the integrated model are obtained and inserted on the incision boundary nodes of the refined submodel, and the structural response analysis of the refined submodels is performed sequentially so as to determine the monitoring content and the monitoring positions on the refined submodels of the inverted triangle rigid frame and the concrete-steel composite beam. Compared with a traditional sensor distribution method, the method can accurately solve the problem of distributing sensors on the special-shaped steel tube concrete structure at complex stressed portions and guarantee robustness, effectiveness and economic rationalization of a health monitoring system.

The invention discloses a synthetic modeling method of rotor and airframe coupling dynamics modality, and belongs to the dynamic design technology of helicopters. The synthetic modeling method of the rotor and airframe coupling dynamics modality is suitable for the dynamic stability and dynamic response analysis modeling of single-rotor and multi-rotor coupling. The synthetic modeling method analyzes the air resonance instability of a rotor blade by aiming at the rotor blade operation pneumatic environment of a flight state stipulated by a flight envelope rule which needs to considers to cover and properly exceed the performance requirements of the helicopter, researches the influence of high-speed high-overload flight state parameters, looks for the structural design parameters of rotors, blades and a steering control system which cause or affect the generation of the air resonance, and determines the instability boundary of the air resonance. Through the sensitivity analysis of the air resonance by the structural design parameters, a structural design parameter range which affects the air resonance is determined, and a design measure for expanding the security boundary of the air resonance is put forward.

The invention relates to an observation system optimization design method based on stack response analysis, which distinguishes the advantages and disadvantages of the observation system through analysis of three-dimensional observation system stack response. The method comprises the following steps of: determining the minimum circulating subarea of initially planed observation system; choosing a common central point trace gather deeply buried in a target layer; extracting corresponding model trace gather; weighting and stacking to obtain stack response of a surface element; solving the average amplitude value in the minimum circulating subarea and the amplitude standard deviation in the minimum circulating subarea; comparing the amplitude standard deviation so as to determine the advantages and disadvantages of the observation system; and choosing the observation system. According to the method, the amplitude standard deviation of the stack response is utilized to choose the observation system, so that illusion due to vision judgment is avoided, collected footprint due to the improper choose of the observation system is lowered, and signal to noise ratio and fidelity of seismic data are improved.

The invention discloses a ray tracing-based optical camera simulation imaging method and system. The method comprises optical system simulation, and imaging and photoelectric system simulation, wherein the optical system simulation comprises optical system modeling, camera distortion modeling simulation, camera defocused spot modeling simulation and camera stray light modeling simulation; and the imaging and photoelectric system simulation comprises a spectrum response analysis module, CCD photoelectric conversion modeling simulation, analog circuit modeling simulation and digital-analog quantification modeling simulation. According to the method and the system, influence factors of an optical system and a CCD imaging system of a remote sensing camera to an imaging result are comprehensively considered; a detailed and complete remote sensing camera parameter database is established; a simulated image and a real image have higher close degree; and relatively high simulation precision is achieved.

In a system analysis apparatus, a per-SrcIP filter section captures packets in client-Web server segments on a per-SrcIP basis. An ON/OFF filter section allows captured packets to pass through only when its flag is set to “ON”. A request/response analysis section controls a flag of the ON/OFF filter section of the next segment so that the packets of the next segment are captured only when the present segment is in a response waiting statue. A range control section controls a SrcIP range of packets to be captured by the per-SrcIP filter section.

A method and apparatus for assessing neuromuscular pathology in an individual, by (a) applying a plurality of stimuli to a peripheral nerve; (b) recording from the peripheral nerve, or from a muscle innervated by the peripheral nerve, at least one response to each stimulus; (c) processing each response into at least one response characteristic; (d) compiling the response characteristics from all of the responses into a plurality of descriptive parameters of the response characteristics; and (e) analyzing the plurality of descriptive parameters according to a function specific to the neuromuscular pathology so as to yield an indicator of the pathology.

The invention relates to an NExT/ARMA based structural response analysis method and a technology for modal parameter identification through structural vibration response, in particular to the technology for modal parameter identification of the structure by directly utilizing structural response under ambient excitation. The method is characterized by first detecting the structural response under ambient excitation; then utilizing NExT to convert the response signal to the damped free cross correlation function; and subsequently using the cross correlation function as the input data and identifying the modal parameters (frequency, mode vectors and damping ratio) of the structure by applying the ARMA time series model. The method can better handle the non-linear and astable response signals with multiple degrees of freedom under non-free vibration, and modal parameter identification, can be applied to signal processing and modal parameter identification in such fields as civil engineering, aerospace, autocontrol, mechanical engineering, bridge engineering, hydraulic engineering and the like, has the capabilities of improving the signal to noise ratio of the data and resisting interference and has the characteristic of more accurate modal parameter identification.

The winding testing unit provides systems and methods for determining normal and/or abnormal characteristic signatures of same-voltage windings residing in a device, such as transformer, without the need for a comparison to past historical data. A plurality of characteristic signatures [H(f)'s] are determined for each of a plurality of windings. A plurality of differential characteristic signatures [H(f)'s] are then determined from a plurality of H(f) pairs selected from the plurality of H(f)'s. The differential H(f)'s are compared and at least one significant asymmetry is identified between the differential H(f)'s.