Testing of a Compacted Snow Runway

Experimental Investigation of Concrete Runway Snow Melting Utilizing Heat Pipe Technology

A full scale snow melting system with heat pipe technology is built in this work, which avoids the negative effects on concrete structure and environment caused by traditional deicing chemicals. The snow melting, ice-freezing performance and temperature distribution characteristics of heat pipe concrete runway were discussed by the outdoor experiments. The results show that the temperature of t...

Damage evolution in compacted graphite iron during thermomechanical fatigue testing

Thermomechanical fatigue properties of a compacted graphite iron in an out of phase configuration are investigated for different maximum temperatures and mechanical strain ranges. Furthermore, the stress-strain hysteresis loops are analysed and in particular the unloading modulus, i.e. the elastic modulus measured during specimen unloading, is obtained from each cycle. This material parameter h...

Testing a Blowing Snow Model Against Distributed Snow Measurements at Upper Sheep Creek, Idaho, USA

In this paper a physically-based snow transport model (SnowTran-3D) was used to simulate snow drifting over a 30 m grid, and was compared to detailed snow water equivalence (SWE) surveys on three dates within a small 0.25 km 2 subwatershed, Upper Sheep Creek. Two precipitation scenarios and two vegetation scenarios were used to carry out four snow transport model runs in order to: (1) evaluate ...

A Review of Airport Runway Optimization

Segmentation of compacted and non compacted left ventricular mass with a semi-automatic method

Background The diagnostic of left ventricular (LV) non compaction is still a challenge in clinical practice. There is a lack of reference method able to automatically quantify the total amount of LV trabeculations. Many algorithms have been proposed to determine endocardium and epicardium borders ranging from semi-automated to fully automated methods. However most of the methods were not design...