Results 31 to 40 of about 348,565 (319)

Spatiotemporal phase-matching in capillary high-harmonic generation [PDF]

open access: yes, 2012
We present a simple phase-matching model that takes into account the full spatiotemporal nature of capillary high-harmonic generation. Spectra predicted from the model are compared to experimental results for a number of gases and are shown to reproduce ...
Rogers, Edward T.F.   +22 more
core   +1 more source

A unified representation of some starlike and convex harmonic functions with negative coefficients [PDF]

open access: yesOpuscula Mathematica, 2013
In this paper we introduce a unified representation of starlike and convex harmonic functions with negative coefficients, related to uniformly starlike and uniformly convex analytic functions.
R. M. El-Ashwah   +3 more
doaj   +1 more source

Simulation of Onset of the Capillary Surface Wave in the Ultrasonic Atomizer

open access: yesMicromachines, 2021
The novel drug delivery system refers to the formulations and technologies for transporting a pharmaceutical compound in the body as it is needed to safely achieve its desired therapeutic effects.
Yu-Lin Song   +3 more
doaj   +1 more source

Non-Uniform Time Sampling for Multiple-Frequency Harmonic Balance Computations [PDF]

open access: yes, 2013
A time-domain harmonic balance method for the analysis of almost-periodic (multi-harmonics) flows is presented. This method relies on Fourier analysis to derive an efficient alternative to classical time marching schemes for such flows.
Dufour, Guillaume   +5 more
core   +1 more source

A Review: Recent Progress in the Design and Development of Nonlinear Radars

open access: yesRemote Sensing, 2021
This paper presents an extensive review of nonlinear response-based radar systems. Nonlinear radars are generally used for clutter suppression purposes. These radars detect the nonlinear response generated by diodes and transistors are used as a tag for ...
Ashish Mishra, Changzhi Li
doaj   +1 more source

Control of PMSM Drive Using Lookup Table Based Compensated Duty Ratio Optimized Direct Torque Control (DTC)

open access: yesIEEE Access, 2023
There are several ways to reduce the ripple magnitude for direct torque-controlled permanent magnet synchronous motor (PMSM) drives. In this work, the compensated duty ratio optimized direct torque control (DDTC-TC) method was proposed to reduce the ...
Berhanu Deggefa Lemma   +1 more
doaj   +1 more source

Large signal 2nd harmonic on wafer MESFET characterization [PDF]

open access: yes, 1990
An automatic test set which performs a real time harmonic load-pull characterization is proposed. An active load technique is used in order to set the load at the test frequency and its harmonics and a complete set of device parameters useful for power ...
Andrea Ferrero   +4 more
core   +1 more source

Harmonic Index and Harmonic Polynomial on Graph Operations [PDF]

open access: yesSymmetry, 2018
Some years ago, the harmonic polynomial was introduced to study the harmonic topological index. Here, using this polynomial, we obtain several properties of the harmonic index of many classical symmetric operations of graphs: Cartesian product, corona product, join, Cartesian sum and lexicographic product.
Juan Carlos Hernández-Gómez   +3 more
openaire   +2 more sources

Harmonic analysis of harmonic functions in the plane [PDF]

open access: yesProceedings of the American Mathematical Society, 1976
A continuous function on the complex plane is harmonic if and only if the span of its compositions with entire functions is not dense in the space of continuous functions in the topology of uniform convergence on compact sets.
openaire   +2 more sources

On an atomic decomposition in Banach spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2018
An atomic decomposition is considered in Banach space.  A method for constructing an atomic decomposition of Banach  space, starting with atomic decomposition of  subspaces  is presented. Some relations between them are established.
Telman Gasymov, Chingiz Hashimov
doaj  

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