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The older fire-tube boiler design, in which the water surrounds the heat source and gases from combustion pass through tubes within the water space, is typically a much weaker structure and is rarely used for pressures above 2.4 MPa (350 psi). A significant advantage of the watertube boiler is that there is less chance of a catastrophic failure ...
It was established by Frank E. Wood in 1919 in Pennsylvania. [2] Metal or tinplate toy trucks, cars and airplanes were their specialty. However, they made various other mechanical and lithographed toys as well. [3] [4] The Girard Model Works operated from the early 1920s to 1934, making various metal toys, vehicles and trains.
Fluid bearings are bearings in which the load is supported by a thin layer of rapidly moving pressurized liquid or gas between the bearing surfaces. [1] Since there is no contact between the moving parts, there is no sliding friction, allowing fluid bearings to have lower friction, wear and vibration than many other types of bearings.
The bypass ratio (BPR) of a turbofan engine is the ratio between the mass flow rate of the bypass stream to the mass flow rate entering the core. [1] A 10:1 bypass ratio, for example, means that 10 kg of air passes through the bypass duct for every 1 kg of air passing through the core.
Pierre-Simon Girard (4 November 1765 – 30 November 1836) was a French mathematician and engineer, who worked on fluid mechanics. Girard was born in Caen . A prodigy who invented a water turbine at the age of ten, he worked as an engineer at the École Nationale des Ponts et Chaussées .
Piers 3 and 5 North known as the Girard Group on Philadelphia's Delaware River waterfront were built by the City of Philadelphia and named in honor of Stephen Girard who built wharfs in this area in the early nineteenth century. Each of the two piers contains warehouse space of about 100,000 square feet (9,300 m 2).
Girard is located in western Erie County at (42.005954, -80.321481 It is bordered to the northwest by the borough of Lake City and on all other sides by Girard Township . According to the United States Census Bureau , the borough has a total area of 2.4 square miles (6.1 km 2 ), of which 0.02 square miles (0.05 km 2 ), or 0.81%, is water. [ 9 ]
Glutaraldehyde is an organic compound with the formula (CH 2) 3 (CHO) 2.The molecule consists of a five carbon chain doubly terminated with formyl (CHO) groups. It is usually used as a solution in water, and such solutions exists as a collection of hydrates, cyclic derivatives, and condensation products, several of which interconvert.