نتایج جستجو برای: dynamic envelope
تعداد نتایج: 443512 فیلتر نتایج به سال:
The modelling of dynamic effects for flight dynamics analysis typically makes use of dynamic derivatives. A single value for the derivative is used and is assumed to be independent of the conditions for which it is calculated. This is however not the case. This work looks to quantify the uncertainty introduced as a result for an arbitrary manoeuvre within the flight envelope. The manoeuvres can...
This paper uses the neoclassical growth model to examine the extent to which a tax cut pays for itself through higher economic growth. The model yields simple expressions for the steady-state feedback e¤ect of a tax cut. The feedback is surprisingly large: for standard parameter values, half of a capital tax cut is self- nancing. The paper considers various generalizations of the basic model, i...
To study the dynamics of mammalian HP1 proteins we have microinjected recombinant forms of mHP1alpha, M31 and M32 into the cytoplasm of living cells. As could be expected from previous studies, the three fusion proteins were efficiently transported into the nucleus and targeted specific chromatin areas. However, before incorporation into these areas the exogenous proteins accumulated in a perip...
This study examines optimal conversions of speech sounds to audible electric currents in cochlear-implant listeners. The speech dynamic range was measured for 20 consonants and 12 vowels spoken by five female and five male talkers. Even when the maximal root-mean-square (rms) level was normalized for all phoneme tokens, both broadband and narrow-band acoustic analyses showed an approximately 50...
Amplifying devices where the gain is automatically controlled by the level of the input signal performs dynamics processing. Non-linear components simulating tube amplifiers can be used in these devices to make musical signal audibly dense [1]. This paper deals with the simulation of tube amplifiers using the power polynomial approximation of transfer characteristic and their use in dynamic ran...
Claire Tomlin, John Lygeros, and Shankar Sastry Department of Electrical Engineering and Computer Sciences University of California, Berkeley, CA 94720-1772 clairet, lygeros, [email protected] Abstract This paper presents the application of controller synthesis for hybrid systems to aerodynamic envelope protection and safe switching between ight modes. Each ight mode, which describes a c...
This paper proposes a method to vibration analysis in order to on-line monitoring of milling process quality. Adapting envelope analysis to characterize the milling tool materials is an important contribution to the qualitative and quantitative characterization of milling capacity and a step by modeling the threedimensional cutting process. An experimental protocol was designed and developed fo...
Radio transmitters capable of transforming variable envelope signals into constant envelope signals can be associated with highefficiency switched mode power amplifiers. One of the techniques providing this conversion is Polar Sigma-Delta (ΣΔ) architecture. This approach provides efficient solution for high-dynamic signals, and, moreover, it offers flexibility in a multiradio environment. The o...
A recently proposed concept for dynamic provisioning of survivable lightpath services, called the protected working capacity envelope (PWCE) is considered from a network capacity design and blocking standpoint. The PWCE concept offers several attractive properties for a next-generation Internet based on“IP over optical” transport in which transport level connections can be independently and rap...
The transverse dynamics of a 28.5-GeV electron beam propagating in a 1.4 m long, (0-2)x10(14) cm(-3) plasma are studied experimentally in the underdense or blowout regime. The transverse component of the wake field excited by the short electron bunch focuses the bunch, which experiences multiple betatron oscillations as the plasma density is increased. The spot-size variations are observed usin...
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