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Keycard systems operate by physically moving detainers in the locking mechanism with the insertion of the card, by shining LEDs through a pattern of holes in the card and detecting the result, by swiping or inserting a magnetic stripe card, or in the case of RFID or NFC cards, merely being brought into close proximity to a sensor.
Most national laboratories maintained staffs of local researchers as well as allowing for visiting researchers to use their equipment, though priority to local or visiting researchers often varied from lab to lab. With their centralization of resources (both monetary and intellectual), the national labs serve as an exemplar for Big Science.
Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID system consists of a tiny radio transponder called a tag, a radio receiver, and a transmitter.
The card can often be left in a wallet or purse, [3] and read by simply holding the wallet or purse near the reader. These early proximity cards can't hold more data than a magnetic stripe card , and only cards with smart chips (ie, contactless smartcards ) can hold other types of data like electronic funds balance for contactless payment ...
Near-field communication (NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 cm (1 + 1 ⁄ 2 in) or less. [1] NFC offers a low-speed connection through a simple setup that can be used for the bootstrapping of capable wireless connections. [ 2 ]
The U.S. depends on immigrants for top AI talent. But many struggle getting visas that would allow them to do the work.
Charles River Laboratories International, Inc. is an American pharmaceutical company specializing in a variety of preclinical and clinical laboratory, gene therapy and cell therapy services for the pharmaceutical, medical device and biotechnology industries. [2]
A laboratory (UK: / l ə ˈ b ɒr ə t ər i /; US: / ˈ l æ b r ə t ɔːr i /; colloquially lab) is a facility that provides controlled conditions in which scientific or technological research, experiments, and measurement may be performed. Laboratories are found in a variety of settings such as schools, universities, privately owned ...