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31 results about "Effect modification" patented technology

Effect Modification: Definition. Effect modification happens when a particular variable has separate, different exposure effects depending on another variable.

Object code logic analysis and automated modification system and method

A method and system for modifying computer program logic with respect to a predetermined aspect, comprising (a) before run time: analyzing compiled computer program logic of a module for processes involving the predetermined aspect before run time, substantially without decompilation or reference to computer program source code; and storing a set of modifications relating to computer program logic modifications of the module relating to the predetermined aspect; and (b) at run time: based on the stored set of modifications, selectively transferring program control from the module to a separate logical structure, executing modified logical operations with respect to the predetermined aspect, and subsequently returning program control to the module. The predetermined aspect may be, for example, a data type, algorithm type, or interface specification. In a preferred embodiment, the predetermined aspect is date related data, and more particularly, to logical operations relating to date related data which are flawed. The system preferably operates in a mainframe environment, wherein the compiled computer program constitutes one or more load modules, executing under an operating system, wherein the computer program logic modifications preferably comprise program flow control diversions in an original object module, which selectively transfer logical control to a separate object module to effect modifications to the computer program logic, followed by a return of control to the original object module.
Owner:HANGER SOLUTIONS LLC +1

Turbine disk partitioning reliability analysis method based on size effect modification

The invention relates to a turbine disk partitioning reliability analysis method based on size effect modification. The method includes the steps of firstly, simplifying a turbine disk model, analyzing the sensitivity to obtain the key geometrical size of a turbine disk, measuring the key geometrical size of the turbine disk to obtain a corresponding probability distribution feature; secondly, obtaining the material attributes of the turbine disk, and establishing a SWT probability cyclic stress-strain relation model and a strain-life model of the turbine disk; thirdly, conducting geometricalparameterization modeling on the turbine disk, analyzing finite elements, dividing areas according to the stress level and temperature distribution conditions of the turbine disk, conducting Latin hypercube sampling on the established SWT probability cyclic stress-strain relation model and the probability strain-life model to obtain the relation between random input variables and output service lives of all divided areas of the turbine disk and establish response face models, and sampling the response face models of all the divided areas through a Monte-Carlo sampling method to obtain the corresponding service life distribution and finally obtain the fatigue life and reliability of the turbine disk; fourthly, conducting size effect modification on the service life distribution of the turbine disk.
Owner:BEIHANG UNIV

Real-time method of influence of bridge structure on high-frequency sampling indexes through temperature removing in on-line safe monitoring

The invention provides a real-time method of the influence of a bridge structure on high-frequency sampling indexes through temperature removing in on-line safe monitoring. The method is clear in principle and simple, the influence of a temperature effect can be efficiently removed in real-time measurement data of a bridge on-line monitoring system, and thus a real-time safety early warning and structural state evaluation need of the bridge on-line safety monitoring system is met. The method comprises the main steps of 1, determining a time interval T, wherein the value of T is determined according to the cycle corresponding to the vertical first vibration mode of a bridge structure bridge deck system; 2, every the interval T, according to the real-time measurement data of the high-frequency sampling indexes in the previous interval minus T-0, calculating the average value epsilon a of the monitored value; 3, subtracting epsilon a from a high-frequency sampling real-time measurement numerical value in the interval 0-T so that temperature modification of the real-time measurement data can be completed in real time; 4, when the interval T is finished, repeating steps 2-3, and so as on in a similar fashion. The real-time method is applicable to real-time temperature effect modification of high-frequency sampling indexes (like stress and dynamic deflection) in all bridge safety monitoring systems.
Owner:TSINGHUA UNIV

Real-time method for eliminating influences of temperature on low-frequency sampling indexes in bridge structure online safety monitoring

The invention discloses a real-time method for eliminating influences of temperature on low-frequency sampling indexes in bridge online safety monitoring. The method is clear in principle and easy toimplement, can efficiently eliminate the influences of the temperature effect from actually measured data of a bridge monitoring system, obtains responses purely caused by live loads, and meets the real-time pre-warning and state evaluation requirements of the bridge online safety monitoring system. The method comprises the main steps that firstly, according to the actually measured data of n low-frequency sample indexes before a current moment, least square curve fitting is conducted on the actually measured data to obtain a fitting formula of the variation trend of the actually measured data; secondly, after the fitting formula is obtained, the temperature effect of the current moment is predicted by using the formula; thirdly, the predicted temperature effect is eliminated from the actually measured data of the current moment. The method is easy to operate, efficient, accurate and suitable for real-time temperature effect modification of the low-frequency sampling indexes (such as displacement and the inclination angle) of all bridge online safety monitoring systems.
Owner:TSINGHUA UNIV

Entertainment and navigation system device with karaoke singing function

InactiveCN109084780ASolve the problem of sound refraction and reflectionGuaranteed soundInstruments for road network navigationSound sourcesHuman ear
The invention discloses an entertainment and navigation system device with a karaoke singing function. The entertainment and navigation system device with a karaoke singing function comprises a multimedia host shell, wherein an Android mainboard, a DSP board and a karaoke board are arranged in the multimedia host shell respectively, a digital audio module is arranged on the middle of the Android mainboard, a sound effect modification control module is arranged on the right side above the digital audio module, and an analog sound source module is arranged below the digital audio module. According to the entertainment and navigation system device with a karaoke singing function, the DSP function is arranged in the current Android intelligent host to solve the problems of sound refraction andreflection in the car caused by narrow space and complex sound environment, and the sound of all loudspeakers in the car can reach the human ear at the same time; the Android intelligent host has theoptical fiber output function, the optical fiber output reach the DSP of the professional level, the music is ensured from the source without compression deformation, and the sound effect is ensured;the device is provided with the karaoke song singing function, so that the car is changed into a mobile KTV package and singing can be carried out anytime and anywhere.
Owner:广州市航辉电子有限公司

A Reliability Analysis Method of Turbine Disk Partition Based on Size Effect Correction

The invention relates to a turbine disk partitioning reliability analysis method based on size effect modification. The method includes the steps of firstly, simplifying a turbine disk model, analyzing the sensitivity to obtain the key geometrical size of a turbine disk, measuring the key geometrical size of the turbine disk to obtain a corresponding probability distribution feature; secondly, obtaining the material attributes of the turbine disk, and establishing a SWT probability cyclic stress-strain relation model and a strain-life model of the turbine disk; thirdly, conducting geometricalparameterization modeling on the turbine disk, analyzing finite elements, dividing areas according to the stress level and temperature distribution conditions of the turbine disk, conducting Latin hypercube sampling on the established SWT probability cyclic stress-strain relation model and the probability strain-life model to obtain the relation between random input variables and output service lives of all divided areas of the turbine disk and establish response face models, and sampling the response face models of all the divided areas through a Monte-Carlo sampling method to obtain the corresponding service life distribution and finally obtain the fatigue life and reliability of the turbine disk; fourthly, conducting size effect modification on the service life distribution of the turbine disk.
Owner:BEIHANG UNIV
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