Combustion of coal to generate heat for the generation of steam that drives a turbine to produce electricity is widely used. Considerable advances have been and continue to be made to improve the performance of the combustion process itself, either by staging the process or by better control. These have resulted in improved fuelefficiency and a reduction in emissions exiting the boiler. During ...

Article history: Received 6 March 2015 Received in revised form 18 July 2015 Accepted 19 July 2015 Available online 10 September 2015 Communicated by David Goss

For simplicity, we follow the rules: C denotes a non empty set, c denotes an element of C, f , h, g, h1 denote membership functions of C, A denotes a FuzzySet of C, f , B denotes a FuzzySet of C, g, D denotes a FuzzySet of C, h, D1 denotes a FuzzySet of C, h1, X denotes a Universal FuzzySet of C, and E denotes an Empty FuzzySet of C. We now state four propositions: (1) For every element x of C ...

THE HUMAN NERVOUS SYSTEM. BASIC ELEMENTS OF STRUCTURE AND FUNCTION. By Charles R. Noback. Illustrated by Robert J. Dimarest. New York, McGraw-Hill Book Co., 1967. 281 pp. $13.95. Present pressing needs and time allocations call for an authoritative and accurate neuroanatomy textbook, pleasantly introducing the reader to a formidable and rapidly developing field without sacrificing adequate cove...

The notation and terminology used here have been introduced in the following papers: [1], [18], [9], [4], [7], [5], [20], [16], [17], [19], [14], [2], [15], [3], [10], [13], [22], [23], [21], and [6]. For simplicity, we adopt the following convention: i, s, t, m, n, k are natural numbers, d, e are elements of N, f1 is a finite sequence of elements of N, and x is an integer. Let m be a natural n...

A major activity of the brain of most vertebrates during waking behavior is the processing of sensory information, preponderantly visual. This processing is not fully compatible with the brain's spontaneous oscillatory activity that maintains (refreshes) infrequently used circuits that store inherited and experiential information (memories). Great reduction in sensory input and processing durin...

Let A be a set. One can verify that 〈A, idA〉 is discrete. The following proposition is true (1) For every set X such that ∇X ⊆ idX holds X is trivial. Let A be a relational structure. We say that A is diagonal if and only if: (Def. 1) The internal relation of A ⊆ idthe carrier of A. Let A be a non trivial set. Observe that 〈A,∇A〉 is non diagonal. We now state the proposition (2) For every refle...