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Process flow diagram. A process flow diagram (PFD) is a diagram commonly used in chemical and process engineering to indicate the general flow of plant processes and equipment. The PFD displays the relationship between major equipment of a plant facility and does not show minor details such as piping details and designations.
A personal flotation device (PFD; also referred to as a life jacket, life preserver, life belt, Mae West, life vest, life saver, cork jacket, buoyancy aid or flotation suit) is a flotation device in the form of a vest or suit that is worn by a user to prevent the wearer from drowning in a body of water. The device will keep the wearer afloat ...
Primary flight display. A primary flight display or PFD is a modern aircraft instrument dedicated to flight information. Much like multi-function displays, primary flight displays are built around a Liquid-crystal display or CRT display device. Representations of older six pack or "steam gauge" instruments are combined on one compact display ...
The Philadelphia Fire Department provides fire protection and emergency medical services (EMS) to the city of Philadelphia. The PFD's official mission is to protect public safety by quick and professional response to emergencies and through the promotion of sound emergency prevention measures. This mandate encompasses all traditional ...
The Alaska Permanent Fund (APF) is a constitutionally established permanent fund managed by a state-owned corporation, the Alaska Permanent Fund Corporation (APFC). [1] It was established in Alaska in 1976 [2] by Article 9, Section 15 of the Alaska State Constitution [3] under Governor Jay Hammond and Attorney General Avrum Gross.
Professional Disc, recordable optical disc format. PFD allowance in work systems. Partial fraction decomposition. Perfluorodecalin, a molecule capable of dissolving large amounts of gas. Pediatric feeding disorder, a unifying diagnostic term encompassing medical, nutrition, feeding skill, and psychosocial domains.
A piping and instrumentation diagram (P&ID) is defined as follows: A diagram which shows the interconnection of process equipment and the instrumentation used to control the process. In the process industry, a standard set of symbols is used to prepare drawings of processes. The instrument symbols used in these drawings are generally based on ...
Pelvic floor dysfunction is defined as a herniation of the pelvic organs through the pelvic organ walls and pelvic floor. The condition is widespread, affecting up to 50 percent of women at some point in their lifetime. [10] About 11 percent of women will undergo surgery for urinary incontinence or pelvic organ prolapse by age 80. [11]