Results 21 to 30 of about 5,258 (239)

Origin of oblique optical axis of electrically tunable focusing lenses arising from initial anisotropic molecular tilts under a symmetric electric field. I

AIP Advances, 2020
The optical axes of electrically tunable liquid crystal (LC) lenses are usually tilted, and the corresponding asymmetric wavefront aberrations hinder the lenses from being diffraction-limited.
Yu-Jen Wang, Yi-Hsin Lin, Victor Reshetnyak, Ozan Cakmakci   +3 more
doaj   +1 more source

Comparative study of isotropic and anisotropic sky models to estimate solar radiation incident on tilted surface: A case study for Bhopal, India

Energy Reports, 2015
The purpose of this study is to compare the different empirical models used for estimation of solar radiation on tilted surface. For this, three isotropic and same number of anisotropic sky models were employed by using average monthly mean value of ...
K.N. Shukla, Saroj Rangnekar, K. Sudhakar   +2 more
doaj   +1 more source

Experimental and Numerical Investigations of Backscatter Patterns of the Blocks of Masking Digital Two-Bit Meta-covers

Известия высших учебных заведений России: Радиоэлектроника, 2021
Introduction. The scattering patterns of non-absorbing coded checkerboard-like meta-coatings (MCs) applied for reducing the radar cross section (RCS) of metal surfaces inevitably contain side diffraction lobes.
A. I. Semenikhin, D. V. Semenikhina, Yu. V. Yukhanov, P. V. Blagovisnyy, I. V. Ilyin   +4 more
doaj   +1 more source

Estimation of Solar Radiation on a PV Panel Surface with an Optimal Tilt Angle Using Electric Charged Particles Optimization

, 2022
Solar energy is a promising renewable energy source that can fulfill the world’s current and future energy needs. The angle at which a photovoltaic (PV) panel faces the horizon determines the incidence of solar radiation.
Makbul A. M. Ramli, Taufal Hidayat, Houssem R. E. H. Bouchekara, Muhammad Saud Khan, Hatem Faiz Sindi   +4 more
core   +1 more source

Etiology-Specific Remodeling in Ventricular Tissue of Heart Failure Patients and Its Implications for Computational Modeling of Electrical Conduction

Frontiers in Physiology, 2021
With an estimated 64.3 million cases worldwide, heart failure (HF) imposes an enormous burden on healthcare systems. Sudden death from arrhythmia is the major cause of mortality in HF patients.
Aparna C. Sankarankutty, Aparna C. Sankarankutty, Joachim Greiner, Joachim Greiner, Jean Bragard, Joseph R. Visker, Joseph R. Visker, Thirupura S. Shankar, Thirupura S. Shankar, Christos P. Kyriakopoulos, Christos P. Kyriakopoulos, Stavros G. Drakos, Stavros G. Drakos, Stavros G. Drakos, Frank B. Sachse, Frank B. Sachse   +15 more
doaj   +1 more source

Comparison of Modelled and Measured Tilted Solar Irradiance for Photovoltaic Applications

Energies, 2017
This work assesses the performance of five transposition models that estimate the global and diffuse solar irradiance on tilted planes based on the global horizontal irradiance.
Riyad Mubarak, Martin Hofmann, Stefan Riechelmann, Gunther Seckmeyer   +3 more
doaj   +1 more source

On the relationship between aspect sensitivity, wave activity, andmultiple scattering centers of mesosphere summer echoes: a case study using coherent radar imaging [PDF]

Annales Geophysicae, 2004
A mesosphere-summer-echo layer, observed by the OSWIN VHF radar (54.1°N, 11.8°E) with vertical and 7° oblique radar beams, was examined using the method of coherent radar imaging (CRI).
J.-S. Chen, P. Hoffmann, M. Zecha, J. Röttger, J. Röttger   +4 more
doaj   +1 more source

Dielectric and Electro-Optic Effects in a Nematic Liquid Crystal Doped with h-BN Flakes

Crystals, 2020
A small quantity of hexagonal boron nitride (h-BN) flakes is doped into a nematic liquid crystal (LC). The epitaxial interaction between the LC molecules and the h-BN flakes rising from the π−π electron stacking between the LC’s ...
Rajratan Basu, Lukas J. Atwood, George W. Sterling   +2 more
doaj   +1 more source

Magic auxeticity angle of graphene [PDF]

, 2019
Solids exhibit transverse shrinkage when they are stretched, except auxetics that abnormally demonstrate lateral expansion instead. Graphene possesses the unique normal-auxeticity (NA) transition when it is stretched along the armchair direction but not ...
Lan, Yucheng, Liu, Li, Shi, Yufeng, Gao, Fei, Chakraborty, Pritam, Zhu, Hanxing, De, Suvranu, Peng, Qing, Deng, Binghui, Hou, Jie   +9 more
core   +1 more source

Bistable nematic liquid crystal device with flexoelectric switching

, 2006
Motivated generally by potential applications in the liquid crystal display industry [8,35], and specifically by recent experimental, theoretical and numerical work [6,7,13,14,21,25,30,31], we consider a thin film of nematic liquid crystal (NLC ...
RICHARDSON, Giles, CUMMINGS, L.J.
core   +1 more source