Severity: Warning
Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
Filename: helpers/my_audit_helper.php
Line Number: 176
Backtrace:
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 1034
Function: getPubMedXML
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3152
Function: GetPubMedArticleOutput_2016
File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global
File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword
File: /var/www/html/index.php
Line: 316
Function: require_once
Self-contained self rescuers (SCSRs) are used for emergency escapes in oxygen-deficit atmospheres. Certified by NIOSH to last 1 hour, SCSRs generate oxygen by chemical reaction and must meet a minimum oxygen generation time of 60 min when used according to instructions. Wearers must walk or crawl at a controlled rate to conform to the limits of the devices. The aim of the is study was intended to determine the distance that can be walked when using SCSRs as intended. Fourteen volunteer subjects walked on a treadmill at moderate rates that they controlled. They were instructed to walk as far as possible without using oxygen at a rate higher than the SCSR could produce. Distances walked ranged from 2.1 km to 9.2 km with an average distance of 6.0 km. SCSR operating times ranged from 30 min to 94 min. If the required walking distance is farther than this, multiple units will have to be available to allow safe escape.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1080/15459620601074049 | DOI Listing |
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!