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A blocked isocyanate can be added to materials that would normally react with the isocyanate such as polyols.They do not react at normal ambient room temperature. A formulation containing a blocked isocyanate is a single component material (and thus usually considered more convenient) but reacts like a two-component product but will not react until heated to the temperature required for ...
An exploded-view drawing is a diagram, picture, schematic or technical drawing of an object, that shows the relationship or order of assembly of various parts. [1]It shows the components of an object slightly separated by distance, or suspended in surrounding space in the case of a three-dimensional exploded diagram.
Parts books were often issued as microfiche, though this has fallen out of favour. Now, many manufacturers offer this information digitally in an electronic parts catalogue. This can be locally installed software, or a centrally hosted web application. Usually, an electronic parts catalogue enables the user to virtually disassemble the product ...
Leeson's equation is an empirical expression that describes an oscillator's phase noise spectrum. Leeson's expression [ 1 ] for single-sideband (SSB) phase noise in dBc/Hz (decibels relative to output level per hertz) and augmented for flicker noise : [ 2 ]
Leeson's goniometer, to be fitted to a microscope eyepiece, was illustrated in Knight's New Mechanical Dictionary (1884); [8] and its measurement technique, by bringing two images of a crystal into coincidence, was still explained in a text of 1921. [9] Leeson is also credited with the first rotation apparatus for orienting a crystal. [10]
A schematic, or schematic diagram, is a designed representation of the elements of a system using abstract, graphic symbols rather than realistic pictures. A schematic usually omits all details that are not relevant to the key information the schematic is intended to convey, and may include oversimplified elements in order to make this essential meaning easier to grasp, as well as additional ...
The Suppliers and Parts database is an example relational database that is referred to extensively in the literature [citation needed] and described in detail in C. J. Date's An Introduction to Database Systems, 8th ed. [1] It is a simple database comprising three tables: Supplier, Part and Shipment, and is often used as a minimal exemplar of the interrelationships found in a database.
Basic abstract diagram of a staple, with parts labelled. Shown in isometric-projection pseudo-perspective (not true perspective view). Date: 2010: Source: Self-made SVG file, based loosely on File:Staplediagram.JPG. Converted from the following PostScript vector source code: