Lobe pumps are similar to external gear pumps in operation in that fluid flows around the interior of the casing. Lobe contact is prevented by external timing gears located in the gearbox. Pump shaft support bearings are located in the gearbox and since the bearings are out of the pumped liquid, pressure is limited by bearing location and shaft deflection. As the lobes come out of mesh, they create expanding volume on the inlet side of the pump. Liquid flows into the cavity and is trapped by the lobes as they rotate. Liquid travels around the interior of the casing in the pockets between the lobes and the casing. Finally, the meshing of the lobes forces liquid through the outlet port under pressure.

Network is a set of devices connected by media links. Local area network is usually private owned and links the devices in a single office, building, or a campus. Depending on the needs of an organization and the type of technology used, a LAN can be as simple as two PCs and a printer in someone's home, office, or it can be extended throughout a company and include voice, sound and video peripherals. LANs are designed to allow resources to be shared between personal computers or workstations. The resources to be shared can include hardware, software, or data. LANs have data rates in the 4 to 16 Mbps range. But it is very common for LANs to have data rates of 100 Mbps or 1 Gbps. The size of the LAN may be determined by licensing restrictions on the number of users per copy of software, or by restrictions on the number of users licensed to access the operating system.

Localised electrochemical impedance system allows spatially resolved impedance measurements to be made. It combines the principles of EIS measurements with scanning probe technology. A small sinusoidal voltage or current perturbation is applied to a working electrode sample and the resulting current is measured to allow the calculation of the impedance. However, rather than measure the bulk current, a small electrochemical probe is scanned close to the surface, measuring the local current in the electrolyte.

Locating pins are quick removable locating devices for precision alignment of work pieces in jigs and fixtures. It may be provided with either L or T shape handles. L shape handle is ideal where space is a consideration. T shape handle offers a better grip for easy removal. Pins are hardened and ground with black oxide finish.