Results 91 to 100 of about 5,007 (212)

Directive Antenna Clutter Loss in Slant Paths

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper investigates the development of a clutter loss model specifically for slant paths involving directive antennas. Conventionally, clutter loss is characterized by using isotropic antennas to facilitate standard link budget calculations via single antenna gain values.
Fernando Pérez Fontán, Vicente Pastoriza‐Santos, Fernando Machado Domı́nguez, Thomas Prechtl, Pavel Pechac   +4 more
wiley   +1 more source

Controlled Generation of Orbital Angular Momentum Beams With Coherent Beam Combining Digital Laser and Liquid-Crystal q-Plate

IEEE Photonics Journal
We report on versatile orbital angular momentum beam generation through the association of a 61-channels coherent beam combining digital laser and a liquid-crystal q-plate.
Corentin Lechevalier, Claude-Alban Ranely-Verge-Depre, Ihsan Fsaifes, Rezki Becheker, Gerben Boer, Jean-Christophe Chanteloup   +5 more
doaj   +1 more source

Thermal Operational Stability in Organic Thin Film Transistors: The Critical Role of Interface Composition and Deposition Conditions

Small Methods, EarlyView.
Operational thermal stability in organic thin‐film transistors is engineered through interfacial chemistry and deposition temperature. By pairing F10‐SiPc with different surface treatments and tuning substrate temperature during deposition, distinct transport regimes emerge, ranging from crystalline, trap‐prone behavior to reversible, thermally ...
Forest St‐Denis‐Weintrager, Sofia Gallardo‐Pascual, Nicolas Ledos, Raluchukwu B. Ewenike, Audithya Nyayachavadi, Halynne R. Lamontagne, Benoît H. Lessard   +6 more
wiley   +1 more source

Phase‐Controllable Synthesis and Property Modulation of Two‐Dimensional PAs3S3 Crystal

SusMat, EarlyView.
For the first time, phase‐controllable synthesis of 2D inorganic molecular crystals PAs3S3 are successfully realized by kinetics‐controlled vertical microspacing sublimation method. Due to the different arrangements of molecules, the two phases exhibit distinct SHG property, intermolecular forces, and Young's modulus of the R3m phase (21.31 GPa) is 69%
Jie Liu, Chao Wang, Yiran Ma, Yongshan Xu, Zongdong Sun, Pengfei Guan, Ke Ning, Maoqing Lu, Min Luo, Xing Lu, Yingshuang Fu, Meihui Wang, Huiqiao Li, Tianyou Zhai   +13 more
wiley   +1 more source

Mobile electromagnetic levitator for time‐resolved in situ X‐ray diffraction studies of high‐temperature phase transformations

Journal of Synchrotron Radiation, EarlyView.
A mobile electromagnetic levitator combined with time‐resolved synchrotron X‐ray diffraction enables in situ studies of high‐temperature phase transformations without container‐induced contamination and reveals the first direct observation of metastable phase formation in undercooled Fe–Co alloys.In situ observations of high‐temperature transformations,
Olga Shuleshova, Ivan Kaban, Steffen Ziller, Uwe Reinhold, Ann-Christin Dippel, Olof Gutowski, Martin von Zimmermann   +6 more
wiley   +1 more source

Liquid jet capabilities for ultrafast chemistry at the SwissFEL Alvra instrument

Journal of Synchrotron Radiation, EarlyView.
The technical aspects of the Alvra endstation are outlined and its scientific capabilities are demonstrated with commissioning results obtained during the early years of SwissFEL's operation.The Alvra experimental station at the Swiss X‐ray free‐electron laser, SwissFEL, investigates ultrafast dynamics in chemical and biological systems using X‐ray ...
Claudio Cirelli, Emma Victoria Beale, Florian Dworkowski, Victoria Kabanova, Sven Augustin, Gregor Knopp, Chris Milne, Christoph Bostedt, Philip J. M. Johnson, Camila Bacellar   +9 more
wiley   +1 more source

A unified analytical framework for Mössbauer synchrotron sources

Journal of Synchrotron Radiation, EarlyView.
We present a unified analytical framework for Mössbauer synchrotron and X‐ray free‐electron laser sources that provides exact, rotationally invariant expressions for resonance energies and transition probabilities in mixed magnetic dipole–electric quadrupole interactions without Hamiltonian diagonalization.
Krzysztof R. Szymański
wiley   +1 more source

MIDAS: a methodological framework for high‐speed high‐energy diffraction microscopy data reduction. Part I: methodology

Acta Crystallographica Section A, EarlyView.
This paper details the complete methodological framework implemented in the MIDAS software for processing high‐energy diffraction microscopy (HEDM) data. We describe the specific algorithms, coordinate systems and physical models used for both far‐field and near‐field HEDM analysis.
Hemant Sharma, Jun-Sang Park, Peter Kenesei   +2 more
wiley   +1 more source

Assessing protein‐specific radiation damage in time‐resolved X‐ray solution‐scattering experiments at high‐brilliance synchrotrons using fast detector readout

Acta Crystallographica Section D, EarlyView.
Adenylate kinase was used to quantify how experimental parameters influence radiation damage during time‐resolved X‐ray solution scattering (TR‐XSS) at a multipurpose SAXS beamline. The study provides general guidelines for minimizing radiation artifacts in TR‐XSS.Time‐resolved X‐ray solution scattering (TR‐XSS) enables tracking of protein structural ...
Fatemeh Sabzian-Molaei, Tomás S. Plivelic, Magnus Andersson   +2 more
wiley   +1 more source

High‐Gloss SVBRDF Capture Using Bounce Light

Computer Graphics Forum, EarlyView.
Abstract Reflectance capture aims at the visual reproduction of an object under varying illumination. Past works differ substantially in their experimental overhead, from single‐ or few‐image approaches, that employ significant (often learned) priors at the expense of biased reconstructions, to more accurate approaches that tend to be time‐consuming ...
Tomáš Iser, Andrei‐Timotei Ardelean, Tim Weyrich   +2 more
wiley   +1 more source