Results 141 to 150 of about 374,279 (311)

On perturbative scattering amplitudes in maximally supersymmetric theories

open access: yes, 2011
PhDThere has been substantial calculational progress in the last few years in maximally supersymmetric theories, revealing unexpected simplicity, new structures and symmetries. In this thesis, after reviewing some of the recent advances in N = 4 super
Katsaroumpas, Panagiotis
core  

Nonlinear Interactions in Spherically Polarized Alfvénic Turbulence

open access: yesThe Astrophysical Journal
Turbulent magnetic field fluctuations observed in the solar wind often maintain a constant-magnitude magnetic field accompanied by spherically polarized velocity fluctuations; these signatures are characteristic of large-amplitude Alfvén waves. Nonlinear
Trevor A. Bowen   +12 more
doaj   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

open access: yesAdvanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang   +14 more
wiley   +1 more source

Time domain simulation of hydroelastic response of ships in large amplitude waves

open access: yes, 2006
The influence of non-linearities on wave-induced motions and loads has been the focus of many investigations in the past few years and continues to be an important issue.
Park, Jae-Hong
core  

FAR FIELD TRANSFORMATION BY ONLY AMPLITUDE MEASUREMENTS: CYLINDRICAL SCANNING.

open access: yes, 1987
The problem of performing a near-field-far-field transformation when only the amplitude of the near zone field is known over cylindrical surfaces surrounding the source is considered.
G. Schirinzi   +3 more
core   +1 more source

Unraveling the Electronic Structure of Silicon Vacancy Centers in 4H‐SiC

open access: yesAdvanced Functional Materials, EarlyView.
The electronic structure of the silicon vacancy in 4H‐SiC is probed via transient absorption spectroscopy, uncovering previously inaccessible excited states of the quartet and doublet spin channels, including the V2' transition. In combination with theoretical analysis, a comprehensive picture of the electronic structure is established.
Ali Tayefeh Younesi   +9 more
wiley   +1 more source

Locality and causality properties of light cone string field theory [PDF]

open access: yes, 2004
The recent discovery of a new maximally supersymmetric background for the type IIB superstring theory has revived the interest in light cone string field theory.
Kyritisis, Konstantinos
core  

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

open access: yesAdvanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri   +11 more
wiley   +1 more source

Freehand field amplitude acquisition of probe-fed Antenna for diagnostics

open access: yes
The hologram was measured in 18039 spatial points. A frequency sweep of 1601 points from 50 to 70 GHz has been made at each spatial point. Data are given in a .mat file in a struct with 4 fields: grid: 18039 x 3 matrix.
Laviada Martínez, Jaime   +4 more
core   +1 more source

Artery‐on‐Chip Demonstrates Mechanical and Functional Features of Healthy and Diseased Living Smooth Muscle Tissue

open access: yesAdvanced Functional Materials, EarlyView.
This article details the development of an artery‐on‐chip platform for in vitro arterial disease modeling and therapeutic discovery. It describes the fabrication of a fibrin biomaterial scaffold seeded with iPSC‐derived smooth muscle and endothelial cells, mimicking native artery properties. Two genetic disease models showcase the platform's ability to
Danielle Yarbrough   +10 more
wiley   +1 more source

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