Corrosion of reinforcing bars constitutes a significant factor contributing to cracking and spalling in reinforced concrete (RC) structures. To prolong the service life of RC structures, it is crucial ...

President Donald Trump is pushing Congress to pass a sweeping election‑security bill that would require proof of citizenship to vote — raising new questions for Americans who don’t have easy access to ...

This will take a few minutes. Attention: the generated file has a size of approx. 12 GB, so make sure to have enough diskspace. If you're running the challenge with a ...