Results 41 to 50 of about 448,431 (274)

Helicity-selective phase-matching and quasi-phase matching of circularly polarized high-order harmonics: Towards chiral attosecond pulses [PDF]

, 2016
Phase matching of circularly polarized high-order harmonics driven by counter-rotating bi-chromatic lasers was recently predicted theoretically and demonstrated experimentally.
Bordo, E, Cohen, O, Fan, T, Fleischer, A, Grychtol, P, Kapteyn, H, Kfir, O, Knut, R, Murnane, M, Popmintchev, D, Popmintchev, T, Turgut, E, Zusin, D   +12 more
core   +1 more source

Harmonic conjugation in harmonic matroids

Discrete Mathematics, 2009
This paper was finished in 2008.
openaire   +2 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Ultrasound-Assisted Melt Extrusion of Polymers with the Main Harmonics of 10–60 kHz

Fluids
Using a digital oscilloscope, the main harmonics resulting from the application of different frequencies and power levels of ultrasonic waves during the polymer extrusion process were identified.
Diana Agüero-Valdez, Alain González-Sánchez, María Teresa Rodríguez-Hernández, Heidi Andrea Fonseca-Florido, Juan Guillermo Martínez-Colunga, Janett Anaid Valdez-Garza, Gilberto Francisco Hurtado-López, Víctor Javier Cruz-Delgado, Carlos Alberto Ávila-Orta   +8 more
doaj   +1 more source

Nonreciprocal Electromagnetic Scattering from a Periodically Space-Time Modulated Slab and Application to a Quasisonic Isolator

, 2017
Scattering of obliquely incident electromagnetic waves from periodically space-time modulated slabs is investigated. It is shown that such structures operate as nonreciprocal harmonic generators and spatial-frequency filters.
Caloz, Christophe, Chamanara, Nima, Taravati, Sajjad   +2 more
core   +1 more source

Harmonic and relative harmonic dimensions

Annales Academiae Scientiarum Fennicae. Series A. I. Mathematica, 1985
On an open Riemann surface R of Heins type (i.e. R is parabolic with a single ideal boundary component, \(\delta\) R), this paper considers the relationship between the harmonic dimension of the ideal boundary, dim \(\delta\) R, and the relative harmonic dimension of the ideal boundary, \(\dim_ F\delta R\).
Nakai, Mitsuru, Sario, Leo
openaire   +3 more sources

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

Electromagnetic and Mechanical Stress Analysis of a 5 MW High-Pole Non-Overlap Winding Wound-Rotor Synchronous Wind Generator

Energies
Utilizing non-overlap windings has emerged as a favourable choice for minimizing electrical machine manufacturing costs, among other benefits. Nevertheless, it is widely acknowledged that these windings exhibit a notable level of harmonic contents in the
Karen S. Garner, Udochukwu B. Akuru
doaj   +1 more source

Harmonics suppression effect of the quasi-periodic undulator in SASE free-electron-laser

, 2013
In this paper, the harmonics suppression effect of QPUs in SASE FEL is investigated. The numerical results show that the harmonics power is reduced by using QPUs, but the fundamental radiation power also has a pronounced decrease as the saturation length
Jia, Qi-Ka, Li, He-Ting, Wu, Ai-Lin
core   +1 more source

The information content of gravitational wave harmonics in compact binary inspiral [PDF]

, 2002
The nonlinear aspect of gravitational wave generation that produces power at harmonics of the orbital frequency, above the fundamental quadrupole frequency, is examined to see what information about the source is contained in these higher harmonics.
Bender P, Blanchet L, Cutler C, Cutler C, Cutler C, Hellings R W, Peterseim M, Ronald W Hellings, Sintes A M, Thomas A Moore, Vecchio A, Vecchio A   +11 more
core   +3 more sources