headway or frequency is the distance between vehicles in a transit system measured in time or space. the minimum headway is the shortest such distance or time achievable by a system without a reduction in the speed of vehicles. the precise definition varies depending on the application, but it is most commonly measured as the distance from the tip of one vehicle to the tip of the next one behind it.
mil-std-883 - test method standard for microcircuits mil-std-883 has no government copyrights and written with the expressed intention of being emulated and expressed exactly as-is, and as singular reference mil-prf-19500 - semiconductor devices, general specification for. mil-prf-38534 - hybrid microcircuits, general specification for.
over a period of 73 years it was expanded and edited until its withdal in 2000. the bsi group, who produced the standard, played an important role in the development of the international standard on technical specification in conjunction with the iso. in 2000, the bs 308 was replaced by the updated bs 8888. 2016 update
a head injury is any injury that results in trauma to the skull or brain. the terms traumatic brain injury and head injury are often used interchangeably in the medical literature. 1 because head injuries cover such a broad scope of injuries, there are many causes—including accidents, falls, physical assault, or traffic accidents—that can cause head injuries.
in its broadest sense, the head of a piece of music is its main theme, particularly in jazz, where the term takes on a more specific set of connotations.in other types of music, 'head' may refer to the first or most prominent section of a song. the term may, though obtusely, be applied to classical music, insofar as classical pieces generally bear similar thematic elements, but the preferred .
canadian provincial and territorial postal abbreviations are used by canada post in a code system consisting of two capital letters, to represent the 13 provinces and territories on addressed mail.these abbreviations allow automated sorting.. iso 3166-2:ca identifiers' second elements are all the same as these; iso adopted the existing canada post abbreviations.
the overwhelming majority of records manufactured have been of certain sizes 7, 10, or 12 inches , playback speeds 33 1 ⁄ 3, 45, or 78 rpm , and appearance round black discs .however, since the commercial adoption of the gramophone record called a phonograph record in the u.s., where both cylinder records and disc records were invented , a wide variety of records have also been produced .
the en 54 fire detection and fire alarm systems is a mandatory standard that specifies requirements and laboratory test for every component of fire detection and fire alarm system and it allows the free movement of construction products between countries of the european union market.. it was developed and approved by european committee for standardization cen, french: comité européen de .
iso/astm 52628:2013 standard practice for dosimetry in radiation processing iso/astm 52701:2013 guide for performance characterization of dosimeters and dosimetry systems for use in radiation processing
similarly, in art, body proportions are the study of relation of human or animal body parts to each other and to the whole. these ratios are used in depictions of the figure to varying degrees naturalistic, idealized or stylized , and may become part of an aesthetic canon within a culture.
the short form 36 health survey is a 36-item, patient-reported survey of patient health. the sf-36 is a measure of health status and an abbreviated variant of it, the sf-6d, is commonly used in health economics as a variable in the quality-adjusted life year calculation to determine the cost-effectiveness of a health treatment.
din standard din 47100 regulated the color-coding for the identification of cores in telecommunication cables. the standard was withdn without a replacement in november 1998, but remains in widespread use by cable manufacturers. the isolations of the several wires in a cable are either solidly colored in one color, or striped lengthwise in two colors.
iso 26262, titled 'road vehicles – functional safety', is an international standard for functional safety of electrical and/or electronic systems in production automobiles defined by the international organization for standardization iso in 2011.
in fluid dynamics, total dynamic head tdh is the total equivalent height that a fluid is to be pumped, taking into account friction losses in the pipe. = − tdh = static height static lift friction loss. where: static height is the maximum height reached by the pipe after the pump also known as the 'discharge head' .. static lift is the height the water will rise before arriving at the .
pdf/x is a subset of the pdf iso standard. the purpose of pdf/x is to facilitate graphics exchange, and it therefore has a series of printing related requirements which do not apply to standard pdf files. for example, in pdf/x-1a all fonts need to be embedded and all images need to be cmyk or spot colors.
shorthand is an abbreviated symbolic writing method that increases speed and brevity of writing as compared to longhand, a more common method of writing a .the process of writing in shorthand is called stenography, from the greek stenos narrow and graphein to write . it has also been called brachygraphy, from greek brachys short , and tachygraphy, from greek tachys swift, speedy .
degree abbreviations are used as an alternative way to specify an academic degree instead of spelling out the title in full, such as in reference books such as who's who and on business cards.many degree titles have more than one possible abbreviation, with the abbreviation used varying between different universities.
beer head also head or collar , is the frothy foam on top of beer which is produced by bubbles of gas, predominantly carbon dioxide, rising to the surface.the elements that produce the head are wort protein, yeast and hop residue. the carbon dioxide that forms the bubbles in the head is produced during fermentation.the carbonation can occur before or after bottling the beer.
shortcrust pastry is a type of pastry often used for the base of a tart, quiche or pie.shortcrust pastry can be used to make both sweet and savory pies such as apple pie, quiche, lemon meringue or chicken pie. shortcrust pastry recipes usually call for twice as much flour as fat by weight.
din standards that begin with 'din v' 'vornorm', meaning 'pre-issue' are the result of standardization work, but because of certain reservations on the content or because of the divergent compared to a standard installation procedure of din, they are not yet published standards.