Abstract: The paper presents a new optical drive system incorporating acceleration disturbance suppression control in the focus actuator. The new system uses a disturbance observer based on modern ...

What is lumbar disk disease? The vertebral column, or backbone, is made up of 33 vertebrae that are separated by spongy disks. The spine is divided into 4 areas: Cervical spine. The first 7 vertebrae, ...

Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.

Founded back in 1969 as Samsung Electric Industries, Suwon, South Korea-headquartered Samsung Electronics today makes everything from televisions to semiconductors. It released its first Android ...

Lenovo IdeaPad 110 is a Windows 10 Home laptop with a 15.60-inch display that has a resolution of 1366x768 pixels. It is powered by a Celeron Dual Core processor and it comes with 4GB of RAM. The ...

The “Hide My Email” feature on iPhone is incredibly useful, allowing you to create random unique email addresses that forward to your real email address inbox. This feature can help protect your ...