This book was first published in 1990. It discusses a plethora of both high and low tech options for the control of vectors such as mosquitos in the spread of disease.

This work is intended to help development workers and planners to identify and assess the risks of vector-borne diseases in a camp and to plan and implement cost-effective ways of controlling them. The main vector-borne diseases are described, the importance of identifying the particular disease, and of considering methods of control is emphasized.

Alternating current (AC) induction and synchronous machines are frequently used in variable speed drives with applications ranging from computer peripherals, robotics, and machine tools to railway traction, ship propulsion, and rolling mills. The notable impact of vector control of AC drives on most traditional and new technologies, the multitude of practical configurations proposed, and the absence of books treating this subject as a whole with a unified approach were the driving forces behind the creation of this book. Vector Control of AC Drives examines the remarkable progress achieved worldwide in vector control from its introduction in 1969 to the current technology. The book unifies the treatment of vector control of induction and synchronous motor drives using the concepts of general flux orientation and the feed-forward (indirect) and feedback (direct) voltage and current vector control. The concept of torque vector control is also introduced and applied to all AC motors. AC models for drive applications developed in complex variables (space phasors), both for induction and synchronous motors, are used throughout the book. Numerous practical implementations of vector control are described in considerable detail, followed by representative digital simulations and test results taken from the recent literature. Vector Control of AC Drives will be a welcome addition to the reference collections of electrical and mechanical engineers involved with machine and system design.

This publication is intended to contribute to prevention and control of the morbidity and mortality associated with dengue and to serve as an authoritative reference source for health workers and researchers. These guidelines are not intended to replace national guidelines but to assist in the development of national or regional guidelines. They are expected to remain valid for five years (until 2014), although developments in research could change their validity.--Publisher's description.

This short, readable textbook is designed to introduce students the biology and techniques of aricultural pest and disease vector control and management. As such, it is unique; no other book attempts to marry together the fields of pest and vector control. The authors are two of the leading authorities in their respective fields and amongst the best known entomologists of their generation.

electing the appropriate control chemical and the means of application, together with advice on planning an implementation programme.