Integration gives the area under the S-S curve, providing a progressive magnitude of energy density and energy absorption of the material compared with its UDSP. Manipulating the variables' units of stress and strain after numerical integration results in energy per volume (Newton-meter per cubic meter) and, hence, energy density.
Abbreviations: ASTM = American Society for Testing and Materials, CCT = Cyclical Compression Tester, DC = direct current, DCF = dynamic compression fatigue, LP = linear potentiometer, MP = Microcel Puff, P = Poron, P1 = Plastazote 1, P2 = Plastazote 2, PLC = programmable logic controller, S-S = stress-strain, UDSP = user-defined set point.
While Kengo wa Dondo remains Prime Minister, the main opposition parties, including Etienne Tshisekedi's 'orthodox' wing of the Union for Democracy and Social Progress (UDSP
) and its rival wing under the leadership of Frederic Kibassa Maliba, have been excluded alongside the Union of Federalists and Independent Republicans led by Gabriel Kyungu, the former Governor of Shaba.