Results 121 to 130 of about 1,255 (307)

Photochromic Cholesteric Liquid Crystals via Arylazopyrazole Functionalization of Hydroxypropyl Cellulose

Advanced Materials, EarlyView.
We produce a new derivative of hydroxypropyl cellulose functionalized with arylazopyrazole side chains and demonstrate its photoswitchable behaviors in dilute and concentrated aqueous solutions, ultimately designing a series of photochromic cholesteric materials that can be photopatterned as write‐erase displays.
Simona G. Fine, Nina Hildenhagen, Walter R. Linke, Michael Ryan Hansen, Bart Jan Ravoo, Cécile A. C. Chazot   +5 more
wiley   +1 more source

NNSS Position Fixing Errors Resulting from Refraction Effects on Radio Wave Propagation

, 1973
Kôichi Kimura, Hideomi NASU
openalex   +2 more sources

Investigation of the Vertical Profile Radio Refractivity Gradient and Effective Earth Radius Factor (k-factor) in Transmission Link Over Oyo, Oyo State, South Western Nigeria

, 2022
Akeem L. Sheu, K. O. Suleman, Q. A. Adeniji   +2 more
openalex   +2 more sources

Large‐Area 2D Metasurface‐Based Triboelectric E‐Skin Arrays: Contact & Proximity Tactile Mapping with Broadband Acoustic Readouts

Advanced Materials, EarlyView.
Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief, Swagato Sarkar, Anik Kumar Ghosh, Osvalds Verners, Kamal Kumar Meena, Su‐Hyeong Lee, Soosang Chae, Tobias A. F. König, Beate Krause, Andreas Fery, Mehmet Sait Özer, Anindya Nag, Amit Das   +12 more
wiley   +1 more source

An analysis of refractivity biases detected in GPS radio occultation data: Results from simulation studies, aerological soundings and CHAMP satellite observations [PDF]

, 2005
G. Beyerle, T. Schmidt, Jens Wickert, S. Heise, Ch. Reigber, Gert König‐Langlo   +5 more
openalex  

Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes

Advanced Materials, EarlyView.
Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti, Sergio Martínez‐Saiz, Morena Cervino, Edoardo Stanzani, Sandra Jenatsch, Qingsen Zeng, Joo Sung Kim, Dong‐Hyeok Kim, Eojin Yoon, Tae‐Woo Lee, Daniel Tordera, Henk J. Bolink   +11 more
wiley   +1 more source

Distribution of seasonal variation of point refractivity gradient and geo-climatic factor over Ede-Nigeria [PDF]

Songklanakarin Journal of Science and Technology (SJST)
The quantification of anomalies in radio signal transmission has been a serious challenge in using data from radiosondes to determine meteorological parameters in Ede, Nigeria.
Sanyaolu Modupe
doaj  

Investigation of path loss and modeling for digital terrestrial television over Nigeria. [PDF]

Heliyon, 2020
Akinbolati A, Ajewole MO.
europepmc   +1 more source

A STUDY OF IONOSPHERIC REFRACTION OF RADIO WAVES FROM OBSERVATIONS OF COSMIC RADIO SOURCES USING THE RADIO TELESCOPE URAN-4

, 2017
V. V. Galanin, Ya. V. Derevyagin, V. G. Derevyagin   +2 more
openalex   +2 more sources

Ultrafast Photocatalytic Wettability Switching in Substrate‐Interface Tailored Titanium Dioxide Thin Films

Advanced Materials Interfaces, EarlyView.
This study demonstrates ultrafast photocatalytic wettability switching in TiO2 thin films by tailoring substrate doping and interface oxides. Enhanced switching rates and hemiwicking effects are achieved through optimized material stacks and nanostructuring.
Rucha A. Deshpande, Jesper Navne, David C. B. Nielsen, Mathias Adelmark, Radu Malureanu, Ole Hansen, Rafael Taboryski   +6 more
wiley   +1 more source