Results 51 to 60 of about 542 (178)

Polarimetry of light scattered by surface roughness and textured films and periodic structures in nanotechnologies: a new challenge in instrumentation and modeling

EPJ Web of Conferences, 2010
Exhaustive studies in the literature detail the Mueller matrices properties through decomposition, optical entropy and depolarization formalism. It has been applied for many years in rather different fields. In radar polarimetry, mathematical basis of
Ferrieu. F.
doaj   +1 more source

Machine Learning-Based Estimation of PM_2.5 Concentration Using Ground Surface DoFP Polarimeters

IEEE Access, 2022
In this paper, we propose a machine learning system for the estimation of atmospheric particulate matter (PM) concentration, specifically, particles with a maximum diameter of $2.5{\mu }\text{m}$ .
Maen Takruri, Abubakar Abubakar, Abdul-Halim Jallad, Basel Altawil, Prashanth R. Marpu, Amine Bermak   +5 more
doaj   +1 more source

Aerosol Retrieval Over Ocean From DPC‐2/GF‐5(02): Using RemoTAP Extended With a 3‐Parameter Ocean Bio‐Optical Model and Comparisons With a 1‐Parameter Model

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract Multi‐angle polarimetric instruments (MAPs) enable the retrieval of essential aerosol properties over oceanic regions. MAPs retrieval algorithms commonly use a 1‐parameter ocean bio‐optical model (OBM), based on chlorophyll‐a concentration only to represent optical properties over open waters (case‐1), whereas the coastal water (mixture of ...
Cheng Fan, Jeon‐Teo Dong, Guangliang Fu, Sha Lu, Zihan Zhang, Neranga K. Hannadige, Meng Gao, Peng‐Wang Zhai, Gerrit de Leeuw, Zhengqiang Li, Otto Hasekamp   +10 more
wiley   +1 more source

Metal‐Ion Regulated Light‐Free Z→E Isomerization of Azobenzene Glycomacrocycle

Chemistry – A European Journal, Volume 32, Issue 38, 13 October 2026.
Metal ion‐catalyzed Z→E isomerization of photoswitchable azobenzene glycomacrocycle: A new azobenzene‐based glycomacrocycle is capable of forming a 1:1 complex with divalent metal ions in both E‐ and Z‐isomers. The complexes undergo light‐free Z→E isomerization in a timescale spanning from seconds to weeks.
Yang Zhou, Jinbiao Jiao, Mathieu Lordez, Jean‐Yves Salpin, Juan Xie   +4 more
wiley   +1 more source

Polarization‐Dependence of Nonlinear Optical Effects in Silicon: The Case of Ultrafast Processing

Advanced Physics Research, Volume 5, Issue 10, October 2026.
The dependence of the input polarization for the nonlinear optical propagation in silicon is investigated theoretically and experimentally. The perturbative regime is examined using pump‐probe shadowgraphy and nonlinear transmission, whereas the case of permanent laser‐induced modifications is addressed using a combination of Raman micro‐spectroscopy ...
Namig Alasgarzade, Alessandro Alberucci, Stree V. Arumugam, Markus Blothe, Maxime Chambonneau, Chandroth P. Jisha, Stefan Nolte   +6 more
wiley   +1 more source

Over seven decades of solar microwave data obtained with Toyokawa and Nobeyama Radio Polarimeters

Geoscience Data Journal, 2023
Monitoring observations of solar microwave fluxes and their polarization began in Japan during the 1950s at Toyokawa and Mitaka. At present (April 2022), monitoring observations continues with the Nobeyama Radio Polarimeters (NoRP) at the Nobeyama campus
Masumi Shimojo, Kazumasa Iwai
doaj   +1 more source

Structure–Activity Relationships of 1,4‐Benzodiazepines Inhibiting the Voltage‐Gated Potassium Channel KV7.1

Archiv der Pharmazie, Volume 359, Issue 10, October 2026.
KV7.1 antagonists hold potential for the treatment of diarrhea, reflux esophagitis, and hypoinsulinemia. To derive structure–activity relationships, the lead KV7.1 antagonist L768,673 was thoroughly modified in 1‐ and 3‐positions. The 3‐fluoropropyl‐substituted 1,4‐benzodiazepine showed promising KV7.1 inhibitory activity, qualifying it as a potential ...
Florian Roßner, Amy Methaq, Guiscard Seebohm, Bernhard Wünsch   +3 more
wiley   +1 more source

Colombiains A–C, Three New Alkaloids From the Soft Coral‐Derived Fungus Cladosporium colombiae CSGL 10M10

Chemistry &Biodiversity, Volume 23, Issue 10, October 2026.
Three new alkaloids, colombiains A–C (1–3), together with eight known ones (4–11) were isolated from the soft coral‐derived fungus Cladosporium colombiae CSGL 10M10. Compounds 6 and 11 exhibited significant cardioprotective activity against OGD/R‐induced injury in H9c2 cardiomyocytes at 10 µM.
Jing Xie, Bing‐Bing Liu, Yang‐Ying Zheng, Jun‐Feng Huan, Xiao‐Yu Tian, Xiu‐Ping Lin, Hui‐Mei Xie, Yuan‐Yuan Cheng, Cui‐Xian Zhang   +8 more
wiley   +1 more source

Spectral Polarimetric Observations of the Sun by the VIRAC RT-32 Radio Telescope: First Results

Open Astronomy, 2013
The article describes microwave observations of the Sun with the radio telescope RT-32 of the Ventspils International Radio Astronomy Center. The observations were performed using a multichannel spectral polarimeter for the 6.3–9.4 GHz frequency range. A
Bezrukov D.
doaj   +1 more source

Actinomycin Analogs From Streptomyces polyantibioticus S4D258: Structural Elucidation and Antiproliferative Activity Against Triple‐Negative Breast Cancer

Chemistry &Biodiversity, Volume 23, Issue 10, October 2026.
Fifteen new actinomycin analogs, named actinomycins H1–H15, are identified from S. polyantibioticus S4D258. Actinomycins H7–H15 are truncated actinomycin analogs. Actinomycins H1–H6 and H9 exhibit significant antiproliferative activities against both MDA‐MB‐231 and 4T1 TNBC cells.
He Pang, Xiao‐Min Huang, Usama Ramadan Abdelmohsen, Li Shen, Jun Wu   +4 more
wiley   +1 more source