Search results
Results from the WOW.Com Content Network
General structure of a PCB. Polychlorinated biphenyls (PCBs) are various biphenyl based artificial products that are widely used as a dielectric fluid, industrial coolant, and lubricants in the 1960s and 1970s. There is no evidence its synthesis occurs naturally. They are classified as persistent organic pollutants.
The purpose of this paper is to provide standardized definitions and a roadmap of test processes for the Environmental Stress Screening (ESS) of replacement and repaired components used on Air Force systems. The term “component” is used interchangeably with the term “unit” and includes Line-replaceable unit (LRU) and sub-units (SRU). A ...
Environmental systems analysis (ESA) is a systematic and systems based approach for describing human actions impacting on the natural environment to support decisions and actions aimed at perceived current or future environmental problems. Impacts of different types of objects are studied that ranges from projects, programs and policies, to ...
PCB warning label on a power transformer known to contain PCBs. Polychlorinated biphenyls (PCBs) are organochlorine compounds with the formula C 12 H 10−x Cl x; they were once widely used in the manufacture of carbonless copy paper, as heat transfer fluids, and as dielectric and coolant fluids for electrical equipment. [2]
PCB-Investigator is a software tool used for the analysis, visualization, and optimization of printed circuit boards (PCBs). It is used for tasks such as PCB design validation and quality assurance. It is developed by EasyLogix [1] owned by Schindler & Schill GmbH, a German company specializing in electronic design automation (EDA) software.
Eurocard is an IEEE standard format for printed circuit board (PCB) cards that can be plugged together into a standard chassis which, in turn, can be mounted in a 19-inch rack. The chassis consists of a series of slotted card guides on the top and bottom, into which the cards are slid so they stand on end, like books on a shelf.
A printed circuit board design program for Microsoft Windows. FreePCB allows for up to 16 copper layers, both metric and US customary units, and export of designs in Gerber format. Boards can be partially or fully autorouted with the FreeRouting [16] autorouter by using the FpcROUTE Specctra DSN design file translator. Fritzing: Windows, Mac, Linux
Uncertainty and decision analysis: Hall applied generalised theories of probability to civil engineering and environmental systems, including random set theory, [60] the theory of imprecise probability [61] and info-gap theory. [62] He applied the theory of imprecise probabilities to analyse tipping points in the Earth System. [63]