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Showing papers on "Naturalness published in 1988"


Journal ArticleDOI
TL;DR: In this article, the authors point out that string theory can provide an explanation for the vanishing of certain parameters in its low-energy limit which cannot be understood through the symmetries of the field-theoretic approximation.

33 citations


Journal ArticleDOI
TL;DR: In this article, the choice of parameters that is necessary to establish the enormous hierarchy between the doublet and singlet Higgs vacuum expectation values in the invisible axion model is discussed, and it is shown that this choice is associated with an approximate symmetry of the theory, thus demonstrating that the hierarchy in this model is natural in the sense of 't Hooft.

32 citations



Journal ArticleDOI
TL;DR: In this article, the dither effect generated by adding an appropriate random noise to the position of the ankle was applied to the synthesis of natural walking animation for line drawing based on human walking.
Abstract: The mechanism of natural human walking motion has been studied in terms of walking animation by computer graphics. The dither effect generated by adding an appropriate random noise to the position of the ankle was applied to the synthesis for natural walking animation. Two cases of a line drawing animation based on the analysis of human walking and a line drawing animation drawn by a professional animator were used, and their naturalness was evaluated by the sensory evaluation. In the former case, there was no improvement in naturalness by the dither, and the naturalness of motion decreased by adding the random noise. In the latter, there was significant improvement in naturalness by the dither, that is, adding the appropriate random noise was found to be useful in the case of the synthesis of animation made by a line drawing derivated from the actual motion locus.

7 citations


Journal ArticleDOI
TL;DR: In this article, a kind of letting go is advocated, which is achieved by altering the usual goal-directed, striving stance of Taoist and Buddhist belief systems, in order to explore the limiting and liberating aspects of spontaneity and naturalness.
Abstract: This article explores the limiting and liberating aspects of spontaneity and naturalness. Although both are depicted as desirable ends, this article emphasizes the trap in pursuing these goals. Both spontaneity and naturalness are identified in Taoist and Buddhist ways as ideal qualities that are characterized by a state of egolessness. Seeking after spontaneity and naturalness is seen to be a direct contradiction of these qualities. Instead, a kind of letting go is advocated, which is achieved by altering the usual goal-directed, striving stance.

5 citations


Proceedings ArticleDOI
07 Dec 1988
TL;DR: The author presents a novel computer-aided-design method for multi-rate sampled-data feedback systems (MRSDFSs) with many nice features including naturalness and effectiveness, and discusses each concept as it arises in the course of designing a MRSDFs.
Abstract: The author presents a novel computer-aided-design method for multi-rate sampled-data feedback systems (MRSDFSs) with many nice features including naturalness and effectiveness. Naturalness means that a control engineer can express specifications in his terms, by referring directly to signal peaks, overshoots, RMS powers, pulse responses, etc., rather than other, less direct (and more opaque) expressions (e.g. a quadratic integral in LQR or LQG). Effectiveness means that if a controller meeting the specifications exists, then the method will find it. The three main concepts for the proposed MRSDFS CAD method are: (1) shift-invariant representations for multi-rate systems; (2) parametrization of stabilizing controllers and convexity of specifications; and (3) machine intelligence and control specification language compilers. Rather than rigorously discussing each topic in depth and full generality, the author chooses a simple example and discusses each concept as it arises in the course of designing a MRSDFS. >

3 citations


Journal ArticleDOI
TL;DR: The Congregation for the Doctrine of the Faith recently issued its document on reproductive technologies rejected any technology that would replace sexual intercourse between husband and wife, which would include surrogate mothering, all forms of in vitro fertilization, and even homologous artificial insemination.
Abstract: As you know, the Congregation for the Doctrine of the Faith recently issued its document on reproductive technologies.’ It rejected any technology that would replace sexual intercourse between husband and wife. That would include surrogate mothering, all forms of in vitro fertilization, and even homologous artificial insemination. I am interested here in the so-called “simple case” of in vitro fertilization between husband and wife-that is, a procedure that employs their own gametes. Presumably the Congregation’s rejection of this procedure centers around the term “naturalness. ” The Congregation’s Exposition begins as follows:

1 citations