Results 51 to 60 of about 1,211,459 (300)

Depth resolved grazing incidence scattering from the solid-liquid interface

, 2013
We have applied small angle scattering in grazing incidence beam geometry on a time-of-flight neutron instrument. Due to the broad wavelength distribution provided for a specific incident beam angle the penetration depth of the neutron beam is varied ...
A. J. C. Dennison, F. Adlmann, G. Liesche, J. Herbel, M. Wolff, P. Gutfreund, S. Rogers   +6 more
core   +1 more source

Structured beams invariant to coherent diffusion

Optics Express, 2020
Bessel beams are renowned members of a wide family of non-diffracting (propagation-invariant) fields. We report on experiments showing that non-diffracting fields are also immune to diffusion. We map the phase and magnitude of structured laser fields onto the spatial coherence between two internal states of warm atoms undergoing diffusion.
Slava Smartsev, Ronen Chriki, David Eger, Ofer Firstenberg, Nir Davidson   +4 more
openaire   +3 more sources

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Dynamics of electron beams in the solar corona plasma with density fluctuations [PDF]

, 2001
The problem of beam propagation in a plasma with small scale and low intensity inhomogeneities is investigated. It is shown that the electron beam propagates in a plasma as a beam-plasma structure and is a source of Langmuir waves.
Benz, Benz, Cairns, Chaizy, Churaev, Coste, Cronyn, E. P. Kontar, Ginzburg, Goldman, Gopalswamy, Hishikawa, Kontar, Kontar, Kontar, Lapshin, Lin, Magelssen, Melrose, Melrose, Melrose, Muschietti, Papadopoulos, Robinson, Robinson, Robinson, Ryutov, Ryutov, Smith, Takakura, Takakura, Thejappa, Vedenov   +32 more
core   +2 more sources

Fail-safe optimization of beam structures [PDF]

Journal of Computational Design and Engineering, 2019
Abstract In the current work, a fail-safe optimization of beam structures is carried out. This approach may provide an insight into the robustness of lattice structures. The use of beam elements allows a commonly used engineering approach for obtaining a fail-safe design to be applied. This consists of removing one beam element at a time
Julian Kajo Lüdeker, Benedikt Kriegesmann   +1 more
openaire   +1 more source

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source

Large negative lateral shifts due to negative refraction [PDF]

, 2011
When a thin structure in which negative refraction occurs (a metallo-dielectric or a photonic crystal) is illuminated by a beam, the reflected and transmitted beam can undergo a large negative lateral shift.
Antoine Moreau, Benedicto, Bretenaker, Emmanuel Centeno, Felbacq, Gralak, He, Jessica Benedicto, Kong, Krayzel, Laroche, Moreau, Moreau, Paul, Pillon, Rémi Pollès, Scalora, Shadrivov, Tamir, Wang   +19 more
core   +3 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Sequentially deployable maneuverable tetrahedral beam [PDF]

, 1985
A tetrahedral beam that can be compactly stowed, sequentially deployed, and widely manipulated to provide a structurally sound yet highly maneuverable truss structure is comprised of a number of repeating units of tandem tetralhedral sharing common sides.
Crawford, R. F., Mikulas, M. M., Jr.
core   +1 more source

Nuclear structure - The future with radioactive beams

Journal of Research of the National Institute of Standards and Technology, 2000
Some examples of new phenomena expected at extreme values of neutron and proton number are discussed, including soft dipole modes and neutron-proton pairing. First results on the N = Z nucleus (62)Ga are presented in the context of the competition between T = 0 and 1 states in odd-odd, self-conjugate nuclei.
openaire   +2 more sources