Abstract: Pantograph arc has become a potential hazard for the safe running of electric locomotives. It is essential to build an accurate mathematical model of pantograph arc for arc simulation.

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SINGAPORE - High levels of the toxic metal cadmium have been detected in crayfish and scallops from seafood supplier Song Fish Dealer, which supplies these to hotels, restaurants and markets, and a ...

Bedded sandstone is classified as sedimentary rock, which is a typical bedded rock with obvious layered structure characteristics. Bedded rocks formed different bedding orientations in the long and ...

SINGAPORE - A drug prescribed to smokers to help them quit the habit has been suspended from distribution in Singapore after cancer-causing agents called nitrosamines were found in the pills.

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