(60) Estrelda Alexander, Black Fire: One Hundred Years of African-American Pentecostalism (Downers Grove, IL: 1VP
Academic, 2011), 75, 111.
The PD1 Vibro finishing machines--an 'EVT 600' vibratory trough, a '1VP
400' centreless bowl and an 'EVP 550 plain bowl--form an integral part of the C.A.S.E process and have been supplied to MIC, Derby, as part of a "Partnered Support" alliance, through which PDJ Vibro provides an ongoing technical and maintenance service to ensure that its machines operate at optimum performance throughout their working life.
Definition 3.5 Let M [subset] [R.sup.m] be an orientable embedded manifold, and let 1Vp
denote the unit normal to M at the point p.