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Topics related to "filter theory"

communication theory
communication theory see information theory . ... Read more
Antoine Augustin Cournot
Antoine Augustin Cournot , 1801-77, French mathematician and economist. He developed mathematical theories of chance and probability and was one of the first to attempt the application of mathematics to economic problems. His writings include Researches into the Mathematical Principles of the Theor... Read more
Auguste Laurent
Auguste Laurent , 1808-53, French organic chemist. He devised a systematic nomenclature for organic chemistry. His studies on naphthalene and its chlorination products led him to propose a nucleus theory that foreshadowed modern structural chemistry; he proposed that the structural grouping of atoms... Read more
Arthur Cayley
Arthur Cayley , 1821-95, English mathematician. He was admitted to the bar in 1849. In 1863 he was appointed first Sadlerian professor of mathematics at Cambridge. His researches, which covered the field of pure mathematics, included especially the theory of matrices and the theory of invariants. Th... Read more
domino theory
domino theory the notion that if one country becomes Communist, other nations in the region will probably follow, like dominoes falling in a line. The analogy, first applied (1954) to Southeast Asia by President Dwight Eisenhower, was adopted in the 1960s by supporters of the U.S. role in the Viet... Read more
Christine Ladd-Franklin
Christine Ladd-Franklin 1847-1930, American scientist, b. Windsor, Conn., grad. Vassar 1869. She was the first woman student to enter Johns Hopkins (1878), her special studies being directed toward logic and the theory of color. She studied in Göttingen (1891-92) and worked in Helmholtz's labo... Read more
phlogiston theory
phlogiston theory , hypothesis regarding combustion. The theory, advanced by J. J. Becher late in the 17th cent. and extended and popularized by G. E. Stahl, postulates that in all flammable materials there is present phlogiston, a substance without color, odor, taste, or weight that is given off in... Read more
John Forbes Nash, Jr.
John Forbes Nash, Jr. 1928-, American mathematician, b. Bluefield, W.Va., grad. Carnegie Institute of Technology (now Carnegie-Mellon Univ., B.A. and M.A. 1948), Ph.D. Princeton 1950. During a five-year period, beginning with his doctoral thesis in 1949, he established the mathematical principles o... Read more
theory
the·o·ry / ˈ[unvoicedth]ēərē; ˈ[unvoicedth]i(ə)rē/ • n. (pl. -ries) a supposition or a system of ideas intended to explain something, esp. one based on general principles independent of the thing to be explaine... Read more
Irving Fisher
Irving Fisher 1867-1947, American economist, b. Saugerties, N.Y., Ph.D. Yale, 1891. He began teaching at Yale in 1890 and was active there until 1935. His earliest work was in mathematics, and he made a distinguished contribution to mathematical economic theory. He was noted chiefly for his studies... Read more

Encyclopedia entries related to "filter theory"

Alexander Duff
Encyclopedia entry from: Encyclopedia of World Biography ...was expected to become the source of the evangelization of the Indian subcontinent. Duff called this the "downward filter theory." It was also intended to be one of the creative forces toward the modernization of Indian community life. Duff...
Beryl Markham
Encyclopedia entry from: Encyclopedia of World Biography ...for the commercial pilot exam, which involved stripping an engine, cleaning jets and filters, changing plugs and points, and a written test on the theory and practice of air law and navigation. Markham became the first Kenyan-trained pilot...
Kalman, Rudolf Emil
Encyclopedia entry from: Encyclopedia of World Biography ...his development of the Kalman filter, a mathematical method now...on the search for a unified theory of control. Through lectures...knowledge about modern control theory, which involves programming...application of such control theory is the automatic pilot system...and he helped develop solid ...
SIC 3519 Internal Combustion Engines, Not Elsewhere Classified
Encyclopedia entry from: Encyclopedia of American Industries ...patent application entitled "Theory for the construction of a...manufacturers were adding particulate filters as standard components of the diesel engine. The filters were designed to act as barriers...being retrofitted with the filters by the thousands. In certain...passive filtering. This was ...
Emotion
Encyclopedia entry from: Gale Encyclopedia of Psychology ...learning. The first influential theory of emotion in modern times — the James-Lange theory — was formulated...the following decades, this theory drew widespread response and...the brain stem, receives and filters sensory information before...
Fermi, Enrico
Encyclopedia entry from: U*X*L Encyclopedia of World Biography ...taught mathematical physics and theories of mechanics (the study of...of certain features of gas theory and of how metals conduct electricity...used 1927 model of the atom. Theory of beta decay The years between...theoretical physics (existing in theory only) at the University of...substance was ...
metaphor
Book article from: The Oxford Companion to the Body ...the vehicle.) Richards' theory of metaphor as the product...metaphor acts as a ‘filter’ in which two or...interaction and comparison theories of metaphor, and offered...his 1979 study of speech act theory, Searle criticized earlier...operate. Despite divergent theories of the ...
Bilingual Education
Encyclopedia entry from: Encyclopedia of Education ...language, and his thresholds theory suggests that a child must attain...California, developed an overall theory of second language acquisition...monitor model. The core of this theory is the distinction between acquisition...hypothesis, and the affective filter hypothesis. Together, these...
Selective Attention
Encyclopedia entry from: International Encyclopedia of the Social Sciences ...the existence of a perceptual filter that selects information based...such as volume or pitch. This filter serves to limit the amount of...information also passes through the filter, though at an attenuated level...and Essi Viding. 2004. Load Theory of Selective Attention and Cognitive...
Optics
Encyclopedia entry from: The Gale Encyclopedia of Science ...nineteenth century, the wave theory of light was widely accepted...x2013; 1955) photoelectric theory asserted that light behaves...passes through a polarizing filter, such as polarized sunglasses...exits as polarized light. The filter only allows passage of light...

Dictionary entries related to "filter theory"

Stockhausen, Karlheinz
Book article from: The Concise Oxford Dictionary of Music ...Hochschule 1947–51 (pf. and theory) and Cologne Univ. 1952. Studied comp...Webern's techniques. He evolved the theory of ‘parameters’...He is constantly re-examining his theories, restructuring his comps., and exploring...boy sop. altered by echo-effects, filters, etc., and the ...
Protective Shield
Dictionary entry from: International Dictionary of Psychoanalysis ...shield function, in the context of the theory of the ego, is the result of a complex...exogenous stimuli separate. This inert filter is combined with two other elements to...the sensory organs, which periodically filter out sufficient amounts of the excitations...
Goldberger, Joseph
Dictionary entry from: Complete Dictionary of Scientific Biography ...F. Anderson, that measles is transmissible to monkeys by a filter-passing virus and that the virus is present in buccal and...centered on the role of a diet based largely upon corn. This theory — in the form that spoiled corn somehow provided an...
Davaine, Casimir Joseph
Dictionary entry from: Complete Dictionary of Scientific Biography ...from anthrax is not infectious, because the placenta acts as a filter. (5) The infective power of blood containing anthrax bacilli...Sciences and the Academy of Medicine with the enemies of the germ theory of disease — Leplat, Jaillard, Henri Bouley, Andr...

Related newspaper, magazine, and trade journal articles from HighBeam Research

Active filters; theory and design.(Brief Article)(Book Review)
Magazine article from: SciTech Book News; 3/1/2008; 395 words ; 9781420054767 Active filters; theory and design. Pactitis, S...approach to designing active filters in electronic circuits to...undergraduate textbook on filter design, and as a reference by practicing filter designers. ([c]20082005...
A collection of practical experiments in multirate digital signal processing and filter bank theory
Magazine article from: International Journal of Electrical Engineering Education; 10/1/1997; ; 700+ words ; ...digital signal processing and filter banks is described. The systems...not only a revision of the theory involved with it: a practical...invariant systems, FIR and IIR filters, and the FFT algorithm. Practical...digital signal processing, filter banks, time-frequency representations...to the using ...
Theory and design of microwave filters. (The Book End).(Book Review)
Magazine article from: Microwave Journal; 10/1/2002; ; 700+ words ; ...777-2 Microwave filters are important components...treatise on microwave filters and couplers by Matthaei...book includes other filter types and design theories which did not exist...includes basic circuit theory, network synthesis...variety of microwave filter structures. The ...
Antialiasing filters reduce errors in A-D converters. (analog-to-digital converters in data-acquisition systems) (includes related article on the inviolable limits set by sampling theory) (technical)
Magazine article from: EDN; 3/30/1989; ; 700+ words ; ...input signal, antialiasing filters inhibit the generation of...application and of sampling theory. (See box, "Sampling theory...of the ADC, active lowpass filters can reduce the need for brute...to avoid aliasing. Lowpass filters can exhibit a virtually flat...well as economic reasons, a ...
Expert posits theory from air filters, litter samples.
Newspaper article from: Northwest Arkansas Times; 9/12/2006; 281 words ; An expert for the plaintiffs testified Monday that there have been significant amounts of arsenic found in dust samples in Prairie Grove residents' homes that can be matched to arsenic levels found in poultry litter spread in the area. (Northwest Arkansas Times) To read the full text of this
Study: High-blood pressure risks begin at birth for some; Long- standing theory: Research finds that healthier people had more filters in their kidneys
Newspaper article from: Telegraph - Herald (Dubuque); 1/9/2003; ; 591 words ; ...pressure, with far fewer filters than normal in their kidneys...back up a long-standing theory. "I would have been a little...had two to three times more filters - twisted masses of blood...high blood pressure. The filter count ranged widely in healthy...hypertensive kidneys. The filters in ...
Designing elliptic filters with maximum selectivity.(Technology Information)
Magazine article from: EDN; 5/25/2000; ; 700+ words ; ...new look at the brick-wall filter"). These classical filters include Butterworth, Chebyshev, and elliptic filters. Filter requirements often call for...If you're familiar with filter theory, you'll recognize the first...
Two paths lead to FIR filters: easy-to-use FIR filters serve equally well in hardware or software.(Digital Filter Primer)
Magazine article from: ECN-Electronic Component News; 4/1/2009; ; 700+ words ; ...FIR filter lets people specify filter characteristics and get good results without mastering filter theory." As a bonus, FIR filter operations are easy to understand...OMITTED] But like everything, FIR filters have limits. They cannot create...
Where the Filter is Grounded
Magazine article from: Electromagnetic News Report; 7/1/2008; ; 700+ words ; ...question lies in basic filter theory, straight out of the text...most effective use of your filter element is an L filter, with a high impedance series...more elements if needed - a T filter makes sense when you have a...directional data bus). Pi filters are primarily used for ...
Simplify Your Filter Design
Magazine article from: Electromagnetic News Report; 5/1/2005; ; 700+ words ; ...commercially produced power line filter, it is pretty likely to work...aren't going to discuss filter theory - we're going to discuss why filters don't work as intended...start by looking at the basic filter elements, the capacitor and...