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Tattle-Tape
Tattle-Tape is a security system used in libraries to prevent theft of library materials. The tape consists of a magnetic metal strip embedded in a strip of thick, clear adhesive tape. This tape is usually affixed deep between the pages of a paperback book, or between the spine and binding for a hardcover book. When the magnetic strip in the tape is sensitized, an alarm will sound when the item passes through a special gate, typically near the exit. Thus, the items require desensitization by library staff before being given to the library patron to leave. When the book is returned, the tape is re-sensitized by library staff. Tattle-Tape was designed by 3M and was first used at the Saint Paul Public Library in 1970. See also * Electronic article surveillance * Metglas Metglas is a thin amorphous metal alloy ribbon produced by using rapid solidification process of approximately . This rapid solidification creates unique ferromagnetic properties that allows the ribbon to be magne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tattle-Tape And Magnet Block
Tattle-Tape is a security system used in libraries to prevent theft of library materials. The tape consists of a magnetic metal strip embedded in a strip of thick, clear adhesive tape. This tape is usually affixed deep between the pages of a paperback book, or between the spine and binding for a hardcover book. When the magnetic strip in the tape is sensitized, an alarm will sound when the item passes through a special gate, typically near the exit. Thus, the items require desensitization by library staff before being given to the library patron to leave. When the book is returned, the tape is re-sensitized by library staff. Tattle-Tape was designed by 3M and was first used at the Saint Paul Public Library in 1970. See also * Electronic article surveillance * Metglas Metglas is a thin amorphous metal alloy ribbon produced by using rapid solidification process of approximately . This rapid solidification creates unique ferromagnetic properties that allows the ribbon to be magne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Article Surveillance
Electronic article surveillance is a technological method for preventing shoplifting from retail stores, pilferage of books from libraries or removal of properties from office buildings. Special tags are fixed to merchandise; these tags are removed or deactivated by the clerks when the item is properly bought or checked out. At the exits of the store, a detection system sounds an alarm or otherwise alerts the staff when it senses active tags. Some stores also have detection systems at the entrance to the restrooms that sound an alarm if someone tries to take unpaid merchandise with them into the restroom. For high-value goods that are to be manipulated by the patrons, wired alarm clips called spider wrap may be used instead of tags. History Surveillance tags that could be attached to items in stores were first invented by Arthur Minasy in 1966. Initially the concept of pilferage becoming a real concern to retailers started in 1964 when a requirement was raised by a retailer in Ohi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Library
A library is a collection of materials, books or media that are accessible for use and not just for display purposes. A library provides physical (hard copies) or digital access (soft copies) materials, and may be a physical location or a virtual space, or both. A library's collection can include printed materials and other physical resources in many formats such as DVD, CD and cassette as well as access to information, music or other content held on bibliographic databases. A library, which may vary widely in size, may be organized for use and maintained by a public body such as a government; an institution such as a school or museum; a corporation; or a private individual. In addition to providing materials, libraries also provide the services of librarians who are trained and experts at finding, selecting, circulating and organizing information and at interpreting information needs, navigating and analyzing very large amounts of information with a variety of resources. Li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetism
Magnetism is the class of physical attributes that are mediated by a magnetic field, which refers to the capacity to induce attractive and repulsive phenomena in other entities. Electric currents and the magnetic moments of elementary particles give rise to a magnetic field, which acts on other currents and magnetic moments. Magnetism is one aspect of the combined phenomena of electromagnetism. The most familiar effects occur in ferromagnetic materials, which are strongly attracted by magnetic fields and can be magnetized to become permanent magnets, producing magnetic fields themselves. Demagnetizing a magnet is also possible. Only a few substances are ferromagnetic; the most common ones are iron, cobalt, and nickel and their alloys. The rare-earth metals neodymium and samarium are less common examples. The prefix ' refers to iron because permanent magnetism was first observed in lodestone, a form of natural iron ore called magnetite, Fe3O4. All substances exhibit some type of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paperback
A paperback (softcover, softback) book is one with a thick paper or paperboard cover, and often held together with adhesive, glue rather than stitch (textile arts), stitches or Staple (fastener), staples. In contrast, hardcover (hardback) books are bound with cardboard covered with cloth, leather, paper, or plastic. Inexpensive books bound in paper have existed since at least the 19th century in such forms as pamphlets, yellow-backs, yellowbacks, dime novels, and airport novels. Modern paperbacks can be differentiated from one another by size. In the United States, there are "mass-market paperbacks" and larger, more durable "trade paperbacks". In the United Kingdom, there are A-format, B-format, and the largest C-format sizes. Paperback editions of books are issued when a publisher decides to release a book in a low-cost format. Lower-quality paper, glued (rather than stapled or sewn) bindings, and the lack of a hard cover may contribute to the lower cost of paperbacks. Paperb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hardcover
A hardcover, hard cover, or hardback (also known as hardbound, and sometimes as case-bound) book is one bound with rigid protective covers (typically of binder's board or heavy paperboard covered with buckram or other cloth, heavy paper, or occasionally leather). It has a flexible, sewn spine which allows the book to lie flat on a surface when opened. Modern hardcovers may have the pages glued onto the spine in much the same way as paperbacks. Following the ISBN sequence numbers, books of this type may be identified by the abbreviation Hbk. Hardcover books are often printed on acid-free paper, and they are much more durable than paperbacks, which have flexible, easily damaged paper covers. Hardcover books are marginally more costly to manufacture. Hardcovers are frequently protected by artistic dust jackets, but a "jacketless" alternative has increased in popularity: these "paper-over-board" or "jacketless" hardcover bindings forgo the dust jacket in favor of printing the cove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint Paul Public Library
The Saint Paul Public Library is a library system serving the residents of Saint Paul, Minnesota, in the United States. The library system includes a Central Library, twelve branch locations, and a bookmobile. It is a member of the Metropolitan Library Service Agency, a consortium of eight Twin Cities library systems. Origin The Saint Paul Public Library system traces its beginnings to 1856 when the newly formed YMCA opened a reading room."St. Paul Public Library: Many Happy Returns", ''St. Paul Pioneer Press'', September 29, 2002 The following year, both the Saint Paul Library Association and the Mercantile Library Association also were organized. These early efforts all merged in 1863 into the Saint Paul Library Association. In 1879, under the leadership of Alexander Ramsey, the Library Association proposed that the City accept responsibility for their collections and establish it as a free public library. Finally, on September 7, 1882, the city council approved an appropriatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metglas
Metglas is a thin amorphous metal alloy ribbon produced by using rapid solidification process of approximately . This rapid solidification creates unique ferromagnetic properties that allows the ribbon to be magnetized and de-magnetized quickly and effectively with very low core losses of approximately 5 mW/kg"Core Losses in Metglas Alloy 2714A", ''Metglas'' at 60 Hz and a maximum relative permeability of approximately 1,000,000."Metglas Magnetic Alloy 2714A", ''Metglas'' |
3M Brands
3M (originally the Minnesota Mining and Manufacturing Company) is an American multinational conglomerate operating in the fields of industry, worker safety, U.S. health care, and consumer goods. The company produces over 60,000 products under several brands, including adhesives, abrasives, laminates, passive fire protection, personal protective equipment, window films, paint protection films, dental and orthodontic products, electrical and electronic connecting and insulating materials, medical products, car-care products, electronic circuits, healthcare software and optical films. It is based in Maplewood, a suburb of Saint Paul, Minnesota. 3M made $35.4 billion in total sales in 2021, and ranked number 102 in the ''Fortune'' 500 list of the largest United States corporations by total revenue. , the company had approximately 95,000 employees, and had operations in more than 70 countries. History Five businessmen founded the Minnesota Mining and Manufacturing Company as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crime Prevention
Crime prevention is the attempt to reduce and deter crime and criminals. It is applied specifically to efforts made by governments to reduce crime, enforce the law, and maintain criminal justice. Studies Criminologists, commissions, and research bodies such as the World Health Organization, United Nations, the United States National Research Council, the UK Audit Commission have analyzed their and others' research on what lowers rates of interpersonal crime. They agree that governments must go beyond law enforcement and criminal justice to tackle the risk factors that cause crime, because it is more cost effective and leads to greater social benefits than the standard ways of responding to crime. Multiple opinion polls also confirm public support for investment in prevention. Waller uses these materials in '' Less Law, More Order'' to propose specific measures to reduce crime as well as a crime bill. The ''World Health Organization Guide'' (2004) complements the ''World Report on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
