Volumetric dynamometer units for laboratory and field testing of tillage equipment

simulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

fabrication of new ion sensitive field effect transistors (isfet) based on modification of junction-fet for analysis of hydronium, potassium and hydrazinium ions

a novel and ultra low cost isfet electrode and measurement system was designed for isfet application and detection of hydronium, hydrazinium and potassium ions. also, a measuring setup containing appropriate circuits, suitable analyzer (advantech board), de noise reduction elements, cooling system and pc was used for controlling the isfet electrode and various characteristic measurements. the t...

Standardization of laboratory equipment.

A Comparison of Laboratory and Vulnerability Evaluation Methods for the Testing Security Equipment

A facility wide security system cannot be tested without causing disruption or creating vulnerabilities within the system. To overcome this issue, individual components or equipment may be evaluated to a priori performance standard. The two common approaches to security equipment evaluations are vulnerability attacks and laboratory testing. Laboratory testing of security equipment can reduce th...

Equipment and methods for laboratory testing of ankle-foot prostheses as exemplified by the Jaipur foot.

A load deflection and a cyclic loading apparatus capable of measuring dorsiflexion/plantarflexion, pronation/supination, internal/external rotation, and cyclic dorsiflexion (60 cycles per minute) of ankle-foot prostheses are described. A test protocol was developed to assess the functional parameters of the Jaipur ankle-foot prosthesis before and after prolonged cyclic loading, with the simulta...