Now showing items 1-10 of 5364
A Robust Evolvable System for the Synthesis of Analog Circuits
(Revista Computación y Sistemas; Vol. 13 No.4, 2010-04-14)
Abstract. This paper presents a group of evolutionary mechanisms for the design of analog circuits, embedded on a genetic algorithm that performs the synthesis of an analog filter. The algorithm interacts with SPICE, to ...
A new type of analog cosine converterA new type of analog cosine converter
(Revista Mexicana de Física, 2009)
Synthesis and pharmacological properties of TOAC-labeled angiotensin and bradykinin analogs
(Elsevier B.V., 2002-01-01)
Angiotensin II (AngII) and bradykinin (BK) derivatives containing the TOAC (2,2,6,6-tetramethylpiperidine-N-oxyl-4-amino-4-carboxylic acid) spin label were synthesized by solid phase methodology. Ammonium hydroxide (pH 10, ...
Observations from secondary school classrooms in Trinidad and Tobago: Science teachers’ use of analogies
(International Council of Associations for Science Education (ICASE)., 2015-12)
This study sought to examine and interpret how science teachers in Trinidad and Tobago used analogies in their science teaching. A total of 30 lessons taught by five different teachers were observed and analysed, using an ...
Overall Similarity Overrides Element Similarity when Evaluating the Quality of Analogies
(Seoul National University. Institute for Cognitive Science, 2013-09)
Dominant computational models of analogical reasoning (e.g., SME, ACME and LISA) consider that two facts or situations are more analogous as the similarity between corresponding propositional elements increases. We report ...
A current-mode based Field-Programmable Analog Array for signal processing applications
(Kluwer Academic Publ, 1998-09-01)
This paper presents a new approach to develop Field Programmable Analog Arrays (FPAAs),(1) which avoids excessive number of programming elements in the signal path, thus enhancing the performance. The paper also introduces ...
Simultaneous recording of analog signals, audio and video using a VCR
An interface to record analog signals from DC to 20 kHz on the stereo sound channels of video cassette recorders is described. This interface is an effective solution for the implementation of experiments requiring ...
An inductor-free realization of the Chua`s circuit based on electronic analogy
Although literature presents several alternatives, an approach based on the electronic analogy was still not considered for the implementation of an inductor-free realization of the double scroll Chua`s circuit. This paper ...