منابع مشابه
Some result on simple hyper K-algebras
A simple method is described, to prove some theorems for simple hyper K-algebras and to study positive implicative hyper K-ideals, weak (implicative ) hyper K-ideals in simple hyper K-algebras . Beside, some results on positive implicative and (weak) implicative simple hyper K-algebras are presented. Finally classification of simple hyper Kalgebras of order 4, which are satisfied in conditions ...
متن کاملSimple quadrature oscillator for BIST∗
In this letter, a simple quadrature oscillator for built-in self-test (BIST) of integrated analog filters is proposed. A new hardware-efficient approach for amplitude control is described, with as main assets: (i) the technique requires little hardware which makes it very useful for BIST, (ii) the oscillation amplitude is well defined, and (iii) the distortion-level introduced by the amplitude ...
متن کاملA Simple Current-Mode Quadrature Oscillator Using Single CDTA
This article presents a simple current-mode quadrature oscillator using a single Current Differencing Transconductance Amplifier (CDTA) as the active element. The oscillation condition and oscillation frequency can be electronically controlled. The circuit structure is very simple, consisting of merely one CDTA, one resistor and two capacitors. The proposed circuit is suitable for IC architectu...
متن کاملA Simple Proof of a Result of A. Novikov
We give simple proofs that for a continuous local martingale Mt lim inf ε↓0 ε log Ee∞ < ∞ =⇒ E exp(M∞ − 〈M〉∞/2) = 1, lim inf ε↓0 ε log sup t≥0 Eet < ∞ =⇒ E exp(M∞ − 〈M〉∞/2) = 1. 1. Let (Ω,F , P ) be a complete probability space and let Mt be a continuous local martingale on (Ω,F , P ) such that 〈M〉 = 〈M〉∞ < ∞ (a.s.). Define M = M∞, ρ = ρ(M) = e , ρt = ρt(M) = e tt. We will be discussing general...
متن کاملA simple proof of a known blind channel identifiability result
An alternative simple proof for a well-known result encountered in blind identification and equalization of communication channels is derived. It is shown that the coprimeness condition of a number of FIR channels is equivalent to the full column rank condition of a certain block Sylvester matrix, whose entries are the channel coefficients. As a corollary, it is also shown that in general, the ...
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: Nature
سال: 1948
ISSN: 0028-0836,1476-4687
DOI: 10.1038/162215a0