Making time: Estimation of internally versus externally defined durations
نویسندگان
چکیده
منابع مشابه
Externally and Internally Positive Time-varying Linear Systems
The notions of externally positive and internally positive time-varying linear systems are introduced. Necessary and sufficient conditions for the external positivity and internal positivity of time-varying linear systems are established. Sufficient conditions for the reachability of internally positive time-varying linear systems are presented.
متن کاملExternally and Internally Positive Singular Discrete-time Linear Systems
Notions of externally and internally positive singular discrete-time linear systems are introduced. It is shown that a singular discrete-time linear system is externally positive if and only if its impulse response matrix is non-negative. Sufficient conditions are established under which a single-output singular discrete-time system with matrices in canonical forms is internally positive. It is...
متن کاملSynthesis of Externally Synchronous, Internally Asynchronous Circuits
The purpose of this work is to take an arbitrary 2phase synchronous circuit and eliminate its global clock while preserving its externally visible behavior. This is done by converting it into a set of self-timed combinational circuits with latches and a clock generation network that uses only a local handshake. We discuss the overhead required by this approach to selftiming and outline opportun...
متن کاملGalaxy Evolution : Internally or Externally Driven ?
1 RESUMEN El resumen será traducido al español por los editores. The globally-averaged star formation rate in the Universe has been steadily declining since at least z ∼ 1. This may be due either to very local processes operating within the average galaxy, or to external, environmental effects. Specifically, the build-up of structure may be responsible for terminating star formation in some gal...
متن کاملThe effects of age on cerebral activations: internally versus externally driven processes
Numerous studies using functional magnetic resonance imaging (fMRI) have described increased or decreased regional brain activations in older as compared to younger adults. This seeming inconsistency may reflect differences in the psychological constructs examined across studies. We hypothesized that behavioral tasks/contrasts engaging internally and externally driven processes are each associa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Attention, Perception, & Psychophysics
سال: 2017
ISSN: 1943-3921,1943-393X
DOI: 10.3758/s13414-017-1414-6