Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Ageing is a complex process that affects all living organisms. Senescence is not only conceivable in multicellular organisms, but also in unicellulars. Unlike certain diseases that have specific morbidity rates, ageing is a physiological process that affects all individuals that live long enough (unaffected by i.e. predation or famine) to experience senescence.

Signals and signaling.

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Railroads --- Railroads --- Signaling

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Telephone --- Rural telephone --- Telecommunication --- Signal theory (Telecommunication) --- Signaling system 7. --- Law and legislation --- Switching systems. --- United States. --- Rules and practice.

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Complex adaptive systems (cas), including ecosystems, governments, biological cells, and markets, are characterized by intricate hierarchical arrangements of boundaries and signals. In ecosystems, for example, niches act as semi-permeable boundaries, and smells and visual patterns serve as signals; governments have departmental hierarchies with memoranda acting as signals; and so it is with other cas. Despite a wealth of data and descriptions concerning different cas, there remain many unanswered questions about "steering" these systems. In Signals and Boundaries, John Holland argues that understanding the origin of the intricate signal/border hierarchies of these systems is the key to answering such questions. He develops an overarching framework for comparing and steering cas through the mechanisms that generate their signal/boundary hierarchies. Holland lays out a path for developing the framework that emphasizes agents, niches, theory, and mathematical models. He discusses, among other topics, theory construction; signal-processing agents; networks as representations of signal/boundary interaction; adaptation; recombination and reproduction; the use of tagged urn models (adapted from elementary probability theory) to represent boundary hierarchies; finitely generated systems as a way to tie the models examined into a single framework; the framework itself, illustrated by a simple finitely generated version of the development of a multi-celled organism; and Markov processes.

Animal physiology. Animal biophysics --- Artificial intelligence. Robotics. Simulation. Graphics --- Adaptive control systems. --- Adaptation (Biology) --- Signals and signaling --- Coastal signals --- Military signaling --- Naval signaling --- Communication --- Communications, Military --- Marine service --- Naval art and science --- Navigation --- Signs and symbols --- Flags --- Environment --- Biology --- Self-organizing systems --- Variation (Biology) --- Biological fitness --- Genetics --- Self-adaptive control systems --- Artificial intelligence --- Feedback control systems --- Mathematical models. --- COGNITIVE SCIENCES/General --- COMPUTER SCIENCE/General --- Adaptive control systems --- Mathematical models --- Environmental adaptation --- Adaptation, Environmental

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

"Digital Sonar Design in Underwater Acoustics Principles and Applications" provides comprehensive and up-to-date coverage of research on sonar design, including the basic theory and techniques of digital signal processing, basic concept of information theory, ocean acoustics, underwater acoustic signal propagation theory, and underwater signal processing theory. This book discusses the general design procedure and approaches to implementation, the design method, system simulation theory and techniques, sonar tests in the laboratory, lake and sea, and practical validation criteria and methods for digital sonar design. It is intended for researchers in the fields of underwater signal processing and sonar design, and also for navy officers and ocean explorers. Qihu Li is a professor at the Institute of Acoustics, Chinese Academy of Sciences, and an academician of the Chinese Academy of Sciences.

Digital sonar. --- Sonar. --- Underwater acoustics -- Instruments. --- Underwater acoustics -- Measurement. --- Sonar --- Underwater acoustics --- Physics --- Military & Naval Science --- Law, Politics & Government --- Physical Sciences & Mathematics --- Acoustics & Sound --- Naval Architecture --- Instruments --- Instruments. --- Asdic --- Echo ranging --- Sound navigation ranging --- Physics. --- Geophysics. --- Oceanography. --- Acoustics. --- Electrical engineering. --- Electrical Engineering. --- Geophysics/Geodesy. --- Detectors --- Electronics in navigation --- Signals and signaling, Submarine --- Ultrasonic equipment --- Computer engineering. --- Physical geography. --- Geography --- Oceanography, Physical --- Oceanology --- Physical oceanography --- Thalassography --- Earth sciences --- Marine sciences --- Ocean --- Computers --- Design and construction --- Geological physics --- Terrestrial physics --- Electric engineering --- Engineering