Instrument Engineers' Handbook, Third Edition: Process Control provides information pertinent to control hardware, including transmitters, controllers, control valves, displays, and computer systems. This book presents the control theory and shows how the unit processes of distillation and chemical reaction should be controlled. Organized into eight chapters, this edition begins with an overview of the method needed for the state-of-the-art practice of process control. This text then examines the relative merits of digital and analog displays and computers. Other chapters consider the basic industrial annunciators and other alarm systems, which consist of multiple individual alarm points that are connected to a trouble contact, a logic module, and a visual indicator. This book discusses as well the data loggers available for process control applications. The final chapter deals with the various pump control systems, the features and designs of variable-speed drives, and the metering pumps. This book is a valuable resource for engineers.

This volume is devoted to the over 200 fragments of Cratinus for which have no play title. Much of the material has never been commented on previously. Douglas Olson and Ryan Seaberg offer a close literary, philological and historical study of the fragments, with particular attention to textual, poetic and linguistic issues of all sorts and to the lexicographic sources that preserve the material. Their general goal is to open up problems and perspectives rather than to shut them down. By teasing out some of their individual puzzles and peculiarities they want to render the fragments accessible to further scholarly work. The commentary of the Fragmenta Comica series illuminate not only the genre history of comedy, but also the Greek literary history of the Classical and Hellenistic period.

Theopompos was one of the leading comic playwrights of late fifth- and early fourth-century Athens, competing actively with the great Aristophanes and winning several victories. This volume presents the first complete translation and commentary on his surviving fragments. He participated in important trends during the transition from Old to Middle Comedy, including tragic and epic parody and an interest in the figure of the hetaira; among other gems, his fragments include the oldest extant reference to the philosopher Plato.