Search results
Results from the WOW.Com Content Network
Transmission line. Schematic of a wave moving rightward down a lossless two-wire transmission line. Black dots represent electrons, and the arrows show the electric field. One of the most common types of transmission line, coaxial cable. In electrical engineering, a transmission line is a specialized cable or other structure designed to conduct ...
e. Information theory is the mathematical study of the quantification, storage, and communication of information. [1] The field was originally established by the works of Harry Nyquist and Ralph Hartley, in the 1920s, and Claude Shannon in the 1940s. [2] : vii The field, in applied mathematics, is at the intersection of probability theory ...
The miasma theory (also called the miasmic theory) is an abandoned medical theory that held that diseases —such as cholera, chlamydia, or the Black Death —were caused by a miasma ( μίασμα, Ancient Greek for 'pollution'), a noxious form of "bad air", also known as night air. The theory held that epidemics were caused by miasma ...
The Shannon–Weaver model is one of the first and most influential models of communication. It was initially published in the 1948 paper "A Mathematical Theory of Communication" and explains communication in terms of five basic components: a source, a transmitter, a channel, a receiver, and a destination. The source produces the original message.
The telegrapher's equations (or just telegraph equations) are a set of two coupled, linear equations that predict the voltage and current distributions on a linear electrical transmission line. The equations are important because they allow transmission lines to be analyzed using circuit theory. [1] : 381–392 The equations and their solutions ...
Claude Shannon 's development of information theory during World War II provided the next big step in understanding how much information could be reliably communicated through noisy channels. Building on Hartley's foundation, Shannon's noisy channel coding theorem (1948) describes the maximum possible efficiency of error-correcting methods ...
Lasswell's model is one of the earliest and most influential models of communication. [3] : 109 It was first published by Harold Lasswell in his 1948 essay The Structure and Function of Communication in Society. [4] Its aim is to organize the "scientific study of the process of communication ". It has been described as "a linear and Uni ...
Neurotransmission (Latin: transmissio "passage, crossing" from transmittere "send, let through") is the process by which signaling molecules called neurotransmitters are released by the axon terminal of a neuron (the presynaptic neuron), and bind to and react with the receptors on the dendrites of another neuron (the postsynaptic neuron) a ...