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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 ...
Discontinued mechanical movements. 1120 (manual wind, sub-second, 15/17 jewels, 18000vph, reserve 42h) 2660 (manual wind, sweep-second, 17 jewels, 28800vph, reserve 45h) 7001 (manual wind, sub-second, 17 jewels, 21600vph, reserve 42h) 2850 (manual wind, sweep-second, 17 jewels, 28800vph, reserve 50h)
3D printing [ 3] Direct metal laser sintering [ 4] Filament winding, produces composite pipes, tanks, etc. [ 3] Fused deposition modeling [ 3] Inkjet Printing [ 5] Laminated object manufacturing [ 3] Laser engineered net shaping [ 3] Layered manufacturing [ 3] Rapid Induction Printing.
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. Another commonly used term for a PFD is ...
Proportional–integral–derivative controller. A proportional–integral–derivative controller ( PID controller or three-term controller) is a control loop mechanism employing feedback that is widely used in industrial control systems and a variety of other applications requiring continuously modulated control.
Example of a more complex EPC diagram (in German). An event-driven process chain ( EPC) is a type of flow chart for business process modeling. EPC can be used to configure enterprise resource planning execution, and for business process improvement. It can be used to control an autonomous workflow instance in work sharing.
Pattinson's process or pattinsonisation is a method for removing silver from lead, discovered by Hugh Lee Pattinson in 1829 [1] and patented in 1833. The process is dependent on the fact that lead which has least silver in it solidifies first on liquefaction , leaving the remaining liquid richer in silver.
The s-process is believed to occur mostly in asymptotic giant branch stars, seeded by iron nuclei left by a supernova during a previous generation of stars. In contrast to the r-process which is believed to occur over time scales of seconds in explosive environments, the s-process is believed to occur over time scales of thousands of years, passing decades between neutron captures.