Severity: Warning
Message: file_get_contents(https://...@gmail.com&api_key=61f08fa0b96a73de8c900d749fcb997acc09&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
Filename: helpers/my_audit_helper.php
Line Number: 197
Backtrace:
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 197
Function: file_get_contents
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 271
Function: simplexml_load_file_from_url
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3165
Function: getPubMedXML
File: /var/www/html/application/controllers/Detail.php
Line: 597
Function: pubMedSearch_Global
File: /var/www/html/application/controllers/Detail.php
Line: 511
Function: pubMedGetRelatedKeyword
File: /var/www/html/index.php
Line: 317
Function: require_once
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Based on the theory of chaotic modulation, the influence of the control parameters of impingement jets on the stability of the system has been studied. The range of the simulation control parameters is determined through trial calculation. The influence of the main control parameters of the nonlinear system on the stability of pressure and pressure gradient trajectories has been studied numerically. The fluctuation curves of the damping force, recovery force, and kinetic energy and potential energy have been further studied. The results show that the main control parameters affect the waveform of the self-excited oscillation and the energy conversion of the impingement jet system. When the control parameters take specific values, the nonlinear system bifurcates and a regular periodic solution can be obtained. The results suggest the values of the control parameters that form a clear synergistic effect, which facilitates the conversion utilization of self-excited oscillation energy, and in which a stable oscillation can be formed.
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Source |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12317035 | PMC |
http://dx.doi.org/10.1038/s41598-025-12841-7 | DOI Listing |