The ability of an object to move heat from one part of itself to another is called thermal conductivity. It depends on the substance the object is made of. Certain substances like metals pass heat very readily. That means when a metal molecule (atom) vibrates, its neighbors quickly begin to vibrate too.
QNAP Systems, Inc. (Chinese: å¨è¯éç§æ) is a Taiwanese corporation that specializes in providing networked solutions for file sharing, virtualization, storage management and surveillance applications to address corporate, SMB, SOHO and home user needs.NAP was formerly Internet Appliance Department under IEI Group focusing on Network Storage, Digital Surveillance, and Message Communication. In 2004, the department was spun off into QNAP System Inc. and became a wholly owned subsidiary under IEI Group.
Quality control (QC) is a procedure or set of procedures intended to ensure that a manufactured product or performed service adheres to a defined set of quality criteria or meets the requirements of the client or customer. QC is similar to, but not identical with, quality assurance (QA). QA is defined as a procedure or set of procedures intended to ensure that a product or service under development (before work is complete, as opposed to afterwards) meets specified requirements. QA is sometimes expressed together with QC as a single expression, quality assurance and control (QA/QC).