نتایج جستجو برای: pole

تعداد نتایج: 20544  

2017
Julia Kleinteich Falk Hildebrand Mohammad Bahram Anita Y. Voigt Susanna A. Wood Anne D. Jungblut Frithjof C. Küpper Antonio Quesada Antonio Camacho David A. Pearce Peter Convey Warwick F. Vincent Christiane Zarfl Peer Bork Daniel R. Dietrich

Citation: Kleinteich J, Hildebrand F, Bahram M, Voigt AY, Wood SA, Jungblut AD, Küpper FC, Quesada A, Camacho A, Pearce DA, Convey P, Vincent WF, Zarfl C, Bork P and Dietrich DR (2017) Pole-to-Pole Connections: Similarities between Arctic and Antarctic Microbiomes and Their Vulnerability to Environmental Change. Front. Ecol. Evol. 5:137. doi: 10.3389/fevo.2017.00137 Pole-to-Pole Connections: Si...

Mahmood Seifouri Mostafa Kohestani Parviz Amiri

In this paper, we investigate the parameters affecting Total Harmonic Distortion (THD) and Power Supply Rejection Ratio (PSRR) in PWM Class D Amplifiers (CDAs) on the basis of linear models with feedback. From our mathematical analysis, we show that the THD of a PWM Class D amplifier with feedback can be improved by increasing the gain of the integrator through adding another amplifier at the o...

Journal: :international journal of advanced design and manufacturing technology 0
ahmad bagheri mirabbas roudbari mohamadjavad mahmoudabadi

this paper deals with a globally convergent adaptive and sliding mode control of a cart-pole inverted pendulum for trajectory tracking in the presence of a bounded measurement noise and parameter uncertainty. two kinds of controllers have been used for evaluation of tracking error in presence of a bounded noise; as a result, we want to compare that at what time we can see the convergence of tra...

Journal: :SIAM J. Control and Optimization 2006
Uwe Helmke Joachim Rosenthal Xiaochang A. Wang

This paper studies the problem of pole assignment for symmetric and Hamiltonian transfer functions. A necessary and sufficient condition for pole assignment by complex symmetric output feedback transformations is given. Moreover, in the case where the McMillan degree coincides with the number of parameters appearing in the symmetric feedback transformations, we derive an explicit combinatorial ...

2008
Cheng Piao Todd F. Shupe R. C. Tang Chung Y. Hse

Tapered composite poles with biomimicry features as in bamboo are a new generation of wood laminated composite poles that may some day be considered as an alternative to solid wood poles that are widely used in the transmission and telecommunication fields. Five finite element models were developed with ANSYS to predict and assess the performance of five types of composites members: a tapered h...

Journal: :Physical Review D 2012

Journal: :Physical Review Letters 1997

Journal: :Scientific American 1892

Journal: :Eos, Transactions American Geophysical Union 2000

Journal: :Development 2001
A N Harris P M Macdonald

In Drosophila oocytes, activation of Oskar translation from a transcript localized to the posterior pole is an essential step in the organization of the pole plasm, specialized cytoplasm that contains germline and abdominal body patterning determinants. Oskar is a component of polar granules, large particles associated with the pole plasm and the germline precursor pole cells of the embryo. aub...

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