Results 51 to 60 of about 341,830 (324)

Numerical Simulations of Thermohaline Convection: Implications for Extra-Mixing in Low-Mass RGB Stars

, 2010
Low-mass stars are known to experience extra-mixing in their radiative zones on the red-giant branch (RGB) above the bump luminosity. To determine if the salt-fingering transport of chemical composition driven by 3He burning is efficient enough to ...
Denissenkov, Pavel A.
core   +1 more source

First detection of the RGB-bump in the Sagittarius dSph [PDF]

, 2002
We present V, I photometry of the Sagittarius Dwarf Spheroidal galaxy (Sgr) for a region of ~ 1^{circ} times 1^{circ}, centered on the globular cluster M 54. This catalog is the largest database of stars (~500,000) ever obtained for this galaxy. The wide
Bonifacio P., Cassisi S., Dean J. F., E. Pancino, F. R. Ferraro, Fusi Pecci F., King C. R., L. Monaco, M. Bellazzini, Marconi G., Saviane I., Thomas H.-C.   +11 more
core   +2 more sources

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Image Classification of Rice Leaf Diseases with KNN Based Model using Stratified-KCV

Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi)
Rice is a staple food for people in the world, especially Indonesia. The rice harvest decreased in 2023, reducing harvest productivity and causing losses for farmers. Rice cultivation is often affected by diseases that hinder rice harvests.
Tasya Anisah Rizqi, Anwar Fitrianto, Kusman Sadik   +2 more
doaj   +1 more source

RGB-NIR multispectral camera

Optics Express, 2014
A multispectral imaging technique with a new CMOS camera is proposed. With a four channel Bayer patterns, the camera can acquire four spectral images simultaneously. We have developed a color correction process to obtain accurate color information, and we have also demonstrated its applications on portrait enhancement, shadow removal, and vein ...
Zhenyue, Chen, Xia, Wang, Rongguang, Liang   +2 more
openaire   +2 more sources

Multilayer Soft Photonic Arrays Inspired by Cephalopod Skin for High‐Density, Independent, and Multimodal Actuation

Advanced Functional Materials, EarlyView.
A vertically stacked, DEA‐driven photonic array inspired by cephalopod skin, featuring highly crystalline colloidal crystal gels with vivid color, low FWHM and scalability is presented. The multilayer design removes lateral pixel interference, achieving near‐100% fill factor with fully independent RGB actuation.
Maga Kim, Imbo Kong, Do Yoon Kim, Jaeyoung Choi, Seong‐Yu Choi, Yun Hyeok Lee, Sihwan Lee, Byung Ik Park, Gimin Sung, In‐Suk Choi, Wook Sung Kim, Jeong‐Yun Sun   +11 more
wiley   +1 more source

Lithium Intercalation in the Anisotropic Van Der Waals Semiconductor CrSBr

Advanced Functional Materials, EarlyView.
We report the lithium intercalation in the layered van der Waals crystal CrSBr, revealing strongly anisotropic ion‐migration dynamics. Optical and electrical characterization of exfoliated CrSBr shows lithium diffusion coefficients that differ by more than an order of magnitude along a‐ and b‐directions, consistent with molecular dynamics simulations ...
Kseniia Mosina, Aljoscha Söll, Jiří Šturala, Martin Veselý, Petr Levinsky, Ondřej Kaman, Florian Dirnberger, Giuliana Materzanini, Nicola Marzari, Gian‐Marco Rignanese, Borna Radatović, Vlastimil Mazánek, David Sedmidubský, Zdeněk Sofer   +13 more
wiley   +1 more source

Lithium abundances along the RGB: FLAMES-GIRAFFE spectra of a large sample of low-mass Bulge stars [PDF]

, 2011
Context: A small number of K-type giants on the red giant branch (RGB) is known to be very rich in lithium (Li). This fact is not accounted for by standard stellar evolution theory.
Alcalá, Aringer, B. Aringer, Bessell, Brown, Caffau, Caffau, Cameron, Carpenter, Charbonnel, de La Reza, de La Reza, De Propris, Fekel, Girard, Girardi, Girardi, Glass, Gonzalez, González Hernández, Grevesse, Houdashelt, Jasniewicz, Kumar, Kupka, Lambert, Lind, Lind, M. Busso, M. Schultheis, Mallik, Marigo, Marigo, McWilliam, Michaud, Mishenina, Monaco, Montegriffo, Mészáros, Nataf, Palmerini, Pasquini, Pasquini, Robin, Ruchti, Ryde, S. Uttenthaler, Schlegel, Schultheis, Skrutskie, T. Lebzelter, Uttenthaler, van der Bliek, Vanhollebeke, Wright, Zoccali   +55 more
core   +4 more sources

Adaptive Hydrogels With Spatiotemporal Stiffening Using pH‐Modulating Enzymes

Advanced Functional Materials, EarlyView.
The chemomechanical coupling in an adaptive hydrogel is studied to further the development of adaptive hydrogels. This coupling is achieved by embedding a pH‐modulating enzyme in a pH‐responsive hydrogel. The enzymatic reaction can be triggered locally, which generates a pH‐decreasing wave throughout the system, increasing the crosslinking density and ...
Natascha Gray, Zoe Grämiger, André R. Studart, Rafael Libanori   +3 more
wiley   +1 more source

Hybrid Color Space and GLCM Feature Extraction Based Classification Method for Underwater Image Analysis

Düzce Üniversitesi Bilim ve Teknoloji Dergisi
In cases where man-made fishing nets are forgotten or lost underwater, these nets are called ghost nets. These ghost nets threaten the underwater ecosystem over time and reduce the biodiversity of living creatures underwater. For this reason, studies are
Gülşah Karaduman, Nafiye Nur Apaydın, Orhan Yaman   +2 more
doaj   +1 more source