OKC tornado sirens won't test if temps are below freezing. Here's the tech reason why.
The weekly tornado test is more infrequent during colder temperatures, and this is because of emergency management policy.
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New smart sensor takes the pain out of wound monitoring
A major challenge in self-powered wearable sensors for health care monitoring is distinguishing different signals when they occur at the same time. Researchers addressed this issue by uncovering a new ...