US intelligence officials have insisted the mass monitoring was carried out by the security agencies in the countries involved and shared with the US.
Monitoring was carried out from 1995 to 2002.
Monitoring was carried out over 8 h, twice per week from January 2011 to December 2012.
The velocity monitoring was carried out within observation drill holes which was kept during the MH construction period.
Physiological monitoring was carried out in all animals, including arterial pressure (MABP), heart rate (HR) and rectal temperature.
Extensive hemodynamic monitoring was carried out using a pulmonary artery catheter, and intramucosal pH was measured using a gastric tonometer.
To check the effectiveness of the construction measures, field monitoring was carried out, which showed that the rock deformation was well controlled and the tunnel became stable.
Monitoring was carried out for sixty-six days, taking temperature and heat flux measurements on the surfaces of one wall every 10 min.
The monitoring was carried out before and after the cool eco-friendly white paint application, characterised by high solar reflectance and thermal emittance.
Monitoring was carried out for six weeks, with sampling of the 0 1 cm layer in each mesocosm at the beginning and end of the experiment.
Additionally, to assess the long-term thermal response characteristic of underground cave dwellings, a two-years continuous remote monitoring was carried out.
