A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors.
Recruitment (hiring) is a core function of human resource management. It is the first step of appointment. Recruitment refers to the overall process of attracting, shortlisting, selecting and appointing suitable candidates for jobs (either permanent or temporary) within an organization.
Recruitment is a large increase in the sensation of loudness with only a slight increase in the actual intensity of a sound. Even though quiet sounds cannot be heard due to the presence of hearing loss, louder sounds may quickly become uncomfortable to the listener as they increase in volume.