Not every card is pristine or mint. When flaws are inevitable, collectors are left to decide which imperfections matter most. Centering, corners, edges, and surface are the four areas grading ...
Permafrost degradation on the Qinghai-Tibet Plateau is accelerating under climate warming, causing roadbed settlement, waterlogging, thawing interlayers, and long-term instability in high-altitude ...
Regardless of how much experience an equipment operator has, it is difficult to achieve uniform compaction over a sizable area without the help of technology. Without technology, equipment operators ...
Mansour Solaimanian receives funding from Pennsylvania Department of Transportation. In the past has received research funding from Federal Highway Administration and Wisconsin Department of ...