To investigate the load-bearing characteristics of anchor rods under asymmetric freezing conditions such as those in cold regions and effect frost swelling, a model test device was developed using controlled-temperature environmental box hydraulic actuator. Laboratorial pull-out tests soil layers were conducted at different moisture contents temperatures, changes rod force before after quantita...

Heat pump cycles with zeotropic mixtures as working fluids and temperature glides on both heat sink source sides are analyzed. Five binary mixtures, selected based previous studies in the literature, examined. The initially optimized for each mixture at three different (10–30 K) fixed glide (30 K). variation heating COP of designs is then computed compared five part load scenarios down to 40% d...

temperature is one of the effective parameters in erosion of spark plug electrodes. in this research, temperature of spark plug was measured in engine's different operation conditions with two types of fuels: compressed natural gas and gasoline. test results showed that, temperature of center electrode is lower than ground electrode and maximum difference between them is 110ºc that occurs ...