Results 41 to 50 of about 493 (197)

Polarization Changes in Lunar Simulant Soil: The Role of Incident, Reflection, and Off‐Plane Angles

Earth and Space Science, Volume 13, Issue 4, April 2026.
Abstract Observing the polarization of the lunar regolith is essential for obtaining detailed information about the composition and characteristics of lunar soil. Observations conducted via lunar orbiters facilitate polarization measurements over wide areas; however, achieving very high‐resolution imaging requires either a large optical system or a ...
Jinkyu Kim, Minsup Jeong, Sungsoo S. Kim, Ho Jin, Young‐Jun Choi, Hong‐Kyu Moon   +5 more
wiley   +1 more source

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

Advanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu, Varun Shah, Rodion Vladimirovich Belosludov, Mohammad Saeed Bahramy   +3 more
wiley   +1 more source

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

Advanced Functional Materials, Volume 36, Issue 20, 9 March 2026.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey, Arjen van den Berg, Sandra Ruiz Gomez, Claire Donnelly, Dirk Grundler, Sam Ladak   +5 more
wiley   +1 more source

Experimental Evaluation of Energy Efficiency of Four Sun-Tracking Photovoltaic Configurations

Energies
The sun tracker plays a major role in improving the energy efficiency of a solar power system. To address this role, this study experimentally explores the energy efficiency of three sun-tracking systems with three types of degrees of freedom (DOFs ...
Abdellatif Hraich, Ali Haddi, Abdellah El Fadar, Oussama Achkari Begdouri   +3 more
doaj   +1 more source

Vitamin D (25OHD) Serum Seasonality in the United States.

PLoS ONE, 2013
BackgroundVitamin D is an important micronutrient for health. Hypovitaminosis D is thought to play a role in the seasonality of a number of diseases and adverse health conditions.
Amy K Kasahara, Ravinder J Singh, Andrew Noymer   +2 more
doaj   +1 more source

Optically Selective Photomask Based on Field‐Induced Periodic Defect Arrays in Ferroelectric Nematics

Advanced Optical Materials, Volume 14, Issue 12, 25 March 2026.
Field‐induced periodic defect patterns in the ferroelectric nematic liquid crystal phase act as optically selective photomasks. Created in the liquid crystal cells with bare electrodes, their periodicity is controlled by the applied frequency and cell gap. When used as photomasks, these patterns modulate transmitted light, whose spatial characteristics
Rajalaxmi Sahoo, Mamatha Nagaraj, Thomas Raistrick, Gordon D. Love, Helen F. Gleeson   +4 more
wiley   +1 more source

Calibration of the Azimuth Drive Angle Sensor of the Mobile Automated Astronomical System by Stars Observation

IOP Conference Series: Materials Science and Engineering, 2022
Abstract The paper describes the design of the mobile automated astronomical system (MAAS) and the technique of the MAAS azimuth drive calibration by the zenithal stars observation. This technique provides fast and accurate calibration of the MAAS azimuth drive angle sensor in field conditions.
openaire   +1 more source

Unified Analysis of Fermionic Tunneling, Barrow‐Exponential Entropy Corrections, and Plasma Lensing in Carrollian Reissner‐Nordström Spacetime

Annalen der Physik, Volume 538, Issue 3, March 2026.
Carrollian Reissner‐Nordström black holes are investigated through fermionic tunneling, entropy‐corrected thermodynamics, and plasma‐modified gravitational lensing. The generalized uncertainty principle introduces minimal‐length corrections to the Hawking temperature, while the combined Barrow‐Exponential entropy reveals smooth thermodynamic crossovers
Erdem Sucu, İzzet Sakallı, Yusuf Sucu
wiley   +1 more source

Discovery and Initial Investigation of a New Low Surface Brightness Planetary Nebula Candidate at High Galactic Latitude

Astronomische Nachrichten, Volume 347, Issue 3, March 2026.
ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik, P. Köchling, S. Kotov, J. Kozok, Y. Galata, L. Magrini, A. Moiseev, M. Nischang, C. Reese, P. Remmel, P. Riepe, T. Zilch, K. Werner   +12 more
wiley   +1 more source

Azimuthal Adaptation of the Moon-Based Raṣdu al-Qiblah Method

Al-Hilal
The Raṣdu al-Qiblah of the Moon is a night-time method for determining Qibla direction, but it can only be used once per night and not on specific dates due to natural limitations. This study introduces an innovation by applying azimuth difference values
Muhammad Farid Azmi, 'Alamul Yaqin
doaj   +1 more source