Results 51 to 60 of about 1,435,766 (361)

Dual Abruptly Focus of Modulated Circular Airy Beams

IEEE Photonics Journal, 2017
In this paper, we propose a new kind of circular Airy beam whose spectrum is imposed an initial quadratic phase modulation (QPM). Unlike common abruptly autofocusing beams, we find that such modulated circular Airy beams (MCAB) at image plane, i.e ...
Jinggui Zhang, Jun He
doaj   +1 more source

The diffractive structure function at the Tevatron: CDF results [PDF]

Nucl.Phys.Proc.Suppl.99A:37-46,2001, 2000
Results on hard diffraction from CDF are reviewed with emphasis on the determination of the diffractive structure function of the (anti)proton from single diffractive and double Pomeron exchange dijet production. Comparison of the diffractive dijet results with predictions based on diffractive deep inelastic scattering at HERA shows a breakdown of ...
arxiv   +1 more source

A Novel Approach to Produce Metal–Metal Composites by Leveraging Immiscibility: Laser Powder Bed Fusion of Nanosilver‐Dispersed Titanium

Advanced Engineering Materials, EarlyView.
Incorporating nanosized silver into titanium for antimicrobial materials exploits the metastable miscibility gap between silver and titanium. Silver nanoparticles are synthesized via pulsed laser ablation in liquid. Silver addition refines the microstructure, increases hardness by 30%, and reduces Staphylococcus capitis microbial adhesion by 70%, with ...
Hamed Shokri, Silja‐Katharina Rittinghaus, Janett Schmelzer, Jessica Bertrand, Bilal Gökce   +4 more
wiley   +1 more source

Uncovering the Mechanisms of Long-Range Magnetic Order in [Mn(mal)(H₂O)]_n: Insights from Microscopic and Macroscopic Magnetic Analysis

Magnetochemistry
In this study, we investigate the magnetic properties of the molecular compound [Mn(mal)(H2O)]ₙ (mal = dianion of malonic acid) by integrating microscopic and macroscopic characterization, combining unpolarized neutron diffraction and magnetometry ...
Fernando S. Delgado, Laura Cañadillas-Delgado, Juan Rodríguez-Carvajal, Óscar Fabelo, Jorge Pasán   +4 more
doaj   +1 more source

NADH/NADPH bi-cofactor-utilizing and thermoactive ketol-acid reductoisomerase from Sulfolobus acidocaldarius

Scientific Reports, 2018
Ketol-acid reductoisomerase (KARI) is a bifunctional enzyme in the second step of branched-chain amino acids biosynthetic pathway. Most KARIs prefer NADPH as a cofactor.
Chin-Yu Chen, Tzu-Ping Ko, Kuan-Fu Lin, Bo-Lin Lin, Chun-Hsiang Huang, Cheng-Hung Chiang, Jia-Cherng Horng   +6 more
doaj   +1 more source

Numerical Simulation of a Novel Sensing Approach Based on Abnormal Blocking by Periodic Grating Strips near the Silicon Wire Waveguide

Sensors, 2018
This paper discusses the physical nature and the numerical modeling of a novel approach of periodic structures for applications as photonic sensors. The sensing is based on the high sensitivity to the cover index change of the notch wavelength.
Andrei Tsarev, Eugeny Kolosovsky, Francesco De Leonardis, Vittorio M. N. Passaro   +3 more
doaj   +1 more source

A Model-Based RF Hand Motion Detection System for Shadowing Scenarios

IEEE Access, 2020
With the explosive growth of mobile computing, new modes of human-computer interaction (HCI) are emerging and becoming feasible. Compared to vision-based systems that require lighting, radio frequency (RF)-based hand motion detection systems are becoming
Zehua Dong, Fangmin Li, Julang Ying, Kaveh Pahlavan   +3 more
doaj   +1 more source

Provenance Illusions and Elusive Paradata: When Archaeology and Art/Archaeological Practice Meets the Phygital

Open Archaeology, 2021
In this art/archaeological study, we question the utility of the interrelated concepts of provenance, provenience, and paradata as applied to assemblages in art, archaeology, and cultural heritage contexts.
Reilly Paul, Callery Simon, Dawson Ian, Gant Stefan   +3 more
doaj   +1 more source

Powder diffraction

Nature Reviews Methods Primers, 2020
This PrimeView highlights the use of powder diffraction to characterise crystalline structures.
A. Huq
semanticscholar   +1 more source

DIFFRACTION AT THE TEVATRON [PDF]

High Energy Physics, 2007
This article contains a summary of the recent results in diffractive physics at the Tevatron. Results from the CDF diffraction program include the single diffractive to non-diffractive ratio in dijet events, observation of exclusive $e^+e^-$ production via two-photon exchange, hints of exclusive $ $ production via Double Pomeron Exchange (DPE), and ...
openaire   +3 more sources