Results 91 to 100 of about 1,798,975 (310)

Astronomical calibration of the Jurassic time-scale from cyclostratigraphy in British mudrock formations

Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 1999
Three British Jurassic mudrock formations have been investigated, via timeseries analysis, for evidence of sedimentary cyclicity related to orbitalclimatic (Milankovitch) cyclicity: the Blue Lias, ...
Weedon, G, Jenkyns, H, Coe, A, Hesselbo, S   +3 more
openaire   +2 more sources

Bioresorbable Mo–W Electrodes: Toward an Extended Operational Lifetime Through Controlled Alloying and Oxide Coating Engineering

Advanced Materials Interfaces, EarlyView.
Bioresorbable electrochemical sensors face instability in biofluids. Although alloys can mitigate rapid in vivo dissolution, Mo–W remains underexplored for sensing. This work engineers Mo–W films with a nanocrystalline oxide coating, improving stability and enabling reliable oxygen and pH sensing for up to 10 days, highlighting their potential for ...
C. Fernandes, Filippo Franceschini, Kitty Baert, Jon Ustarroz, I. Taurino   +4 more
wiley   +1 more source

Neural Posterior Estimation for Cataloging Astronomical Images from the Legacy Survey of Space and Time

The Astronomical Journal
The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will commence full-scale operations in 2026, yielding an unprecedented volume of astronomical images.
Yicun Duan, Xinyue Li, Camille Avestruz, Jeffrey Regier, LSST Dark Energy Science Collaboration   +4 more
doaj   +1 more source

Astronomical Orbital Cycle-Driven Coevolution of Paleoclimate and Sea Level with Sedimentary Response: A Case Study from the Upper Member of the Miocene Zhujiang Formation in the Enping Depression, South China Sea

Applied Sciences
This study focuses on the upper section of the Zhujiang Formation in the Enping Sag of the Zhujiangkou Basin in the South China Sea, investigating the mechanisms by which astronomical orbital cycles drive paleoclimate, sea-level fluctuations, and ...
Shangfeng Zhang, Chenjun Zeng, Enze Xu, Yaning Wang, Rui Zhu, Rui Han, Gaoyang Gong   +6 more
doaj   +1 more source

A New Method to Improve the Measurement Accuracy of Autonomous Astronomical Navigation

Journal of Mathematics, 2022
Based on the theory of atmospheric refraction, combined with the atmospheric parameter data of NCEP (National Centers for environmental prediction), the Fourier interpolation fitting algorithm is used to model and analyze the parameters affecting ...
Yu-Feng Yang, Xiang Han, Ning-Ning Song, Zi-Chen Wang   +3 more
doaj   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Synchronization of the astronomical time scales in the Early Toarcian: A link between anoxia, carbon-cycle perturbation, mass extinction and volcanism

Earth and Planetary Science Letters, 2018
The Late Pliensbachian–Early Toarcian is a pivotal time in the Mesozoic era, marked by pronounced carbon-isotope excursions, biotic crises and major climatic and oceanographic changes.
Fatima-Zahra Ait-Itto, Mathieu Martinez, G. Price, A. A. Addi   +3 more
semanticscholar   +1 more source

A Quantitative Criterion for Defining Planets

, 2015
A simple metric can be used to determine whether a planet or exoplanet can clear its orbital zone during a characteristic time scale, such as the lifetime of the host star on the main sequence.
Margot, Jean-Luc
core   +1 more source

Microfluidic Engineering of Chitosan‐Coated Nanoemulsions for Controlled Release and Stability in Space Pharmaceutics

Advanced Materials Technologies, EarlyView.
Microfluidic engineering enables the fabrication of chitosan‐coated, melatonin‐loaded nanoemulsions with controlled release and enhanced physicochemical stability for space pharmaceutics. Interfacial biopolymer coating modulates droplet behavior under accelerated thermal stress and simulated microgravity.
Modupe Adebowale, Nguyen Van Duc Long, Philip M Williams, Volker Hessel   +3 more
wiley   +1 more source

An Optimal Task-Scheduling Strategy for Large-Scale Astronomical Workloads using In-transit Computation Model

International Journal of Computational Intelligence Systems, 2018
The Sloan Digital Sky Survey (SDSS) has been one of the most successful sky surveys in the history of astronomy. To map the universe, SDSS uses their telescopes to take pictures of the sky over the whole survey area.
Xiaoli Wang, Bharadwaj Veeravalli, Omer F. Rana   +2 more
doaj   +1 more source