 |  |  OPLL: Ossification of the Posterior Longitudinal Ligament
Ossifi cation of the posterior longitudinal ligament (OPLL) is no longer only a Japanese
disease. In 2004, 18 papers on OPLL and related conditions were published, and 7 of
those were from countries other than Japan. Major textbooks on spine surgery, such
as The Spine, The Cervical Spine, and Spine Surgery, have devoted chapters to... |  |  Power System Relaying
With emphasis on power system protection from the network operator perspective, this classic textbook explains the fundamentals of relaying and power system phenomena including stability, protection and reliability. The fourth edition brings coverage up-to-date with important advancements in protective relaying due to significant changes in... |