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Barcode Symbology
A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called barcode readers, of which there are several types. Later, two-dimensional (2D) variants were developed, using rectangles, dots, hexagons and other patterns, called ''matrix codes'' or ''2D barcodes'', although they do not use bars as such. 2D barcodes can be read using purpose-built 2D optical scanners, which exist in a few different forms. 2D barcodes can also be read by a digital camera connected to a microcomputer running software that takes a photographic image of the barcode and analyzes the image to deconstruct and decode the 2D barcode. A mobile device with an inbuilt camera, such as smartphone, can function as the latter type of 2D barcode reader using speciali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Laurer
George Joseph Laurer III (September 23, 1925 – December 5, 2019) was an American engineer for IBM at Research Triangle Park in North Carolina. He published 20 bulletins, held 28 patents and developed the Universal Product Code (UPC) in the early 1970s. He devised the coding and pattern used for the UPC, based on Joe Woodland's more general idea for barcodes. Early life George Laurer was born on September 23, 1925, in New York City. His family moved to Baltimore, Maryland, so his father, an electrical engineer, could work for the United States Navy. Laurer recovered from polio which he contracted as a teenager, nonetheless, while in 11th grade, he was drafted into the U.S. Army during World War II. After being discharged from the military, he attended technical school where he studied radio and television repair. Upon completion of his first year at the technical school, his instructor convinced him that he should not continue that course of study, but that he should go to coll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultraviolet
Ultraviolet (UV) is a form of electromagnetic radiation with wavelength from 10 nm (with a corresponding frequency around 30 PHz) to 400 nm (750 THz), shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight, and constitutes about 10% of the total electromagnetic radiation output from the Sun. It is also produced by electric arcs and specialized lights, such as mercury-vapor lamps, tanning lamps, and black lights. Although long-wavelength ultraviolet is not considered an ionizing radiation because its photons lack the energy to ionize atoms, it can cause chemical reactions and causes many substances to glow or fluoresce. Consequently, the chemical and biological effects of UV are greater than simple heating effects, and many practical applications of UV radiation derive from its interactions with organic molecules. Short-wave ultraviolet light damages DNA and sterilizes surfaces with which it comes into contact. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Food Fair
Food Fair, also known by its successor name Pantry Pride, was a large supermarket chain in the United States. It was founded by Samuel N. Friedland, who opened the first store (as Reading Giant Quality Price Cutter) in Harrisburg, Pennsylvania in the late 1920s. As of 1957, Food Fair had 275 stores, and at its peak, the chain had more than 500 stores. Friedland's family retained control of the firm through 1978, when the chain entered bankruptcy. History Origins Samuel Friedland opened his first "Reading Giant Quality Price Cutter" supermarket in the 1920s. The success of the first store led to the opening of more stores. In the late 1940s came the introduction of the name ''Food Fair''. In 1958, Food Fair purchased Setzer's Supermarkets, a 38-store chain in the Jacksonville, Florida, area. In 1961, Food Fair bought J.M. Fields Department Stores, a chain of discount department stores in New England. The latter chain grew substantially, expanding to areas already served by Foo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philadelphia
Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Since 1854, the city has been coextensive with Philadelphia County, the most populous county in Pennsylvania and the urban core of the Delaware Valley, the nation's seventh-largest and one of world's largest metropolitan regions, with 6.245 million residents . The city's population at the 2020 census was 1,603,797, and over 56 million people live within of Philadelphia. Philadelphia was founded in 1682 by William Penn, an English Quaker. The city served as capital of the Pennsylvania Colony during the British colonial era and went on to play a historic and vital role as the central meeting place for the nation's founding fathers whose plans and actions in Philadelphia ultimately inspired the American Revolution and the nation's indep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drexel Institute Of Technology
Drexel University is a private research university with its main campus in Philadelphia, Pennsylvania. Drexel's undergraduate school was founded in 1891 by Anthony J. Drexel, a financier and philanthropist. Founded as Drexel Institute of Art, Science and Industry, it was renamed Drexel Institute of Technology in 1936, before assuming its current name in 1970. , more than 24,000 students were enrolled in over 70 undergraduate programs and more than 100 master's, doctoral, and professional programs at the university. Drexel's cooperative education program (co-op) is a prominent aspect of the school's degree programs, offering students the opportunity to gain up to 18 months of paid, full-time work experience in a field relevant to their undergraduate major or graduate degree program prior to graduation. History Drexel University was founded in 1891 as the Drexel Institute of Art, Science and Industry, by Philadelphia financier and philanthropist Anthony J. Drexel. The origi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio-frequency Identification
Radio-frequency identification (RFID) uses electromagnetic fields to automatically Automatic identification system, identify and Tracking system, track tags attached to objects. An RFID system consists of a tiny radio transponder, a radio receiver and transmitter. When triggered by an electromagnetic interrogation pulse from a nearby RFID reader device, the tag transmits digital data, usually an Identifier, identifying inventory number, back to the reader. This number can be used to track inventory goods. Passive tags are powered by energy from the RFID reader's interrogating radio waves. Active tags are powered by a battery and thus can be read at a greater range from the RFID reader, up to hundreds of meters. Unlike a barcode, the tag does not need to be within the Line-of-sight propagation, line of sight of the reader, so it may be embedded in the tracked object. RFID is one method of automatic identification and data capture (AIDC). RFID tags are used in many industries. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QR Code
A QR code (an initialism for quick response code) is a type of matrix barcode (or two-dimensional barcode) invented in 1994 by the Japanese company Denso Wave. A barcode is a machine-readable optical label that can contain information about the item to which it is attached. In practice, QR codes often contain data for a locator, identifier, or tracker that points to a website or application. QR codes use four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to store data efficiently; extensions may also be used. The quick response system became popular outside the automotive industry due to its fast readability and greater storage capacity compared to standard UPC barcodes. Applications include product tracking, item identification, time tracking, document management, and general marketing. A QR code consists of black squares arranged in a square grid on a white background, including some fiducial markers, which can be read by an imaging device s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PSC Inc
PSC may refer to: Business * Pacific Securities, a Kunming-based company * People with Significant Control, in United Kingdom company law * Personal service corporation, in United States tax law * Powerchip, Taiwanese manufacturer of computer memory * Protein Sciences Corporation, an American biotech company * Public Service Commission (other), regulatory bodies, with competence varying by jurisdiction * Production sharing contract, a type of contract used in the resource extraction industry Government * Public Safety Canada * Pacific Salmon Commission Education * Parkwood Secondary College, Ringwood North, Victoria, Australia * Parkdale Secondary College, Mordialloc, Victoria, Australia * Peter Symonds College, Winchester, UK * Pensacola State College, Pensacola, Florida * Peru State College, Peru, Nebraska * Philippine Science Consortium, an organization of tertiary schools in the Philippines * Photography Studies College, Melbourne, Victoria, Australia * Polk Sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Troy, Ohio
Troy is a city in and the county seat of Miami County, Ohio, United States, located north of Dayton. The population was 26,305 at the 2020 census, making it the largest city in Miami County and the 55th largest city in Ohio; it is part of the Dayton Metropolitan Statistical Area. Troy is home to an annual Strawberry Festival the first weekend in June. History Troy was platted ca. 1807. A post office in Troy has been in operation since 1824. Troy was one of the cities impacted by severe flooding in the Great Flood of 1913. A definitive book on the history of Troy titled "Troy: The Nineteenth Century" was authored and published by Thomas Bemis Wheeler and the Troy Historical Society in January, 1970. Copies are still available online and through the organization. Detailed events include the founding of the city and the Ohio canal era of the 1800s. Historic sites The city was the location of the Hobart Welded Steel House Company, which might have become influential in U.S. hou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marsh Supermarkets
Marsh Supermarkets was an American retail food chain headquartered in Indianapolis, Indiana, with a peak number of 86 stores in 2013 located throughout central Indiana and parts of western Ohio (including metropolitan Cincinnati). Its eventual parent company was Sun Capital Partners, headquartered in Boca Raton, Florida. The company filed for bankruptcy on May 11, 2017, and was eventually liquidated. Topvalco, Inc., a subsidiary of supermarket competitor Kroger purchased 11 out of the 44 remaining stores while Ohio-based Fresh Encounter purchased another 15 stores. The unsold 18 stores were closed on or before July 8, 2017. History 1931-1959: The Ermal Marsh years Founded in 1931 in Muncie, the company went public in 1953 and grew to a maximum of 97 locations. Of the 97 locations, 69 were marketed as ''Marsh Supermarkets'', three were ''O'Malia's Markets'' and 25 were the ''MainStreet Market'' banner. The company's founder, Ermal Marsh, was able to hold together his first sto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wrigley Company
The Wm. Wrigley Jr. Company, known as the Wrigley Company, is an American multinational chewing gum (Wrigley's gum) company, based in the Global Innovation Center (GIC) in Goose Island, Chicago, Illinois. Wrigley's is wholly owned by Mars, Incorporated, and, along with Mars chocolate bars and other candy products, makes up Mars Wrigley Confectionery. It is the largest manufacturer and marketer of chewing gum in the world. The company currently sells its products in over 180 countries and districts, operates in over 50 countries, and has 21 production facilities in 14 countries including the United States, Mexico, Spain, the United Kingdom, France, the Czech Republic, Colombia, Poland, Russia, China, India, Japan, Kenya, Australia, and New Zealand. History The company was founded on April 1, 1891, in Chicago, Illinois by William Wrigley Jr. Wrigley's gum was traditionally made out of chicle, sourced largely from Latin America. In 1952, in response to Decree 900, land refor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
