Security is beefed up at the Wisconsin Capitol, days after a shooter killed a Minnesota lawmaker and her husband. But there's one thing you won't see there: metal detectors.

Tumor-derived extracellular vesicles (tEVs) are potential biomarkers for noninvasive cancer diagnosis. However, accurate and sensitive detection of tEVs is hampered by their high heterogeneity, as ...

We fabricated a sensitive air flow detector that mimic the sensing mechanism found at the tail of some insects. [see Y. Yang, A. Klein, H. Bleckmann and C. Liu, Appl. Phys. Lett.99 (2) (2011); J. J.

Shrapnel injury is a major cause of death in victims of bomb blast, land mines, and gun fire. Currently, doctors rely on imaging systems to locate the shrapnel before surgery. But, since these images ...

The paper analyses traditional differential eddy current sensors pointing out that differential excitation eddy current is more suitable for micro-defects detection. Based on this theory, a new kind ...

In 1946, U.S. postal inspectors who had long had suspicions about a deceased post office employee's activities borrowed a metal detector from the U.S. Army and had their hunch confirmed.

Still, even if only three metal detectors were installed in the district's 163 middle and elementary schools at $20,000 each, the cost would be $9.8 million.