Results 81 to 90 of about 1,798,975 (310)

SEARCH FOR TiO-BAND VARIABILITY OF COOL GIANT

Odessa Astronomical Publications, 2017
The dissipation of acoustic energy and bombardement of high energy particles of TiO molecules can be sources of temperature "inversion" and nonstability of outer layers of atmospheres of cool giants. In 1993 the trial observations on variability of outer
N. S. Komarov, N. I. Dorokhov, T. N. Dorokhova   +2 more
doaj   +1 more source

Testing Astronomical Solutions With Geological Data for the Latest Cretaceous: An Astronomically Tuned Time Scale

Paleoceanography and Paleoclimatology
AbstractAstronomical solutions form the backbone of accurate dating for geology and paleoclimate studies. Beyond 50 Ma, however, the chaos inherent in the solar system makes it impossible to calculate a unique astronomical solution. Geological data have been used to constrain the chaos in order to arrive at an astronomically calibrated time scale up ...
I. J. Kocken, R. E. Zeebe
openaire   +1 more source

Versatile Magneto‐Dielectric Response of Epitaxial Thin Films of the High Entropy Oxide Perovskite Nd(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3

Advanced Materials, EarlyView.
The magnetic high entropy oxide perovskite Nd(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3 exhibits a substantially large dielectric constant (εr) at room temperature, which shows distinct anionic and cationic contributions in the form of zero and finite bias peaks, respectively, down to its magnetic transition temperature (Tmag).
Roxana Capu, Ryan Thompson, C. Willem Rischau, Marli R. Cantarino, Premysl Marsik, Sergey L. Bud'ko, Neven Biškup, María Varela, Yurii G. Pashkevich, Serhii M. Orel, Thomas Prokscha, Andreas Suter, Jiangtao Zhao, Ugwumsinachi Oji, Marco Bonura, Peter Bencok, Zaher Salman, Stefano Gariglio, Christian Bernhard, Subhrangsu Sarkar   +19 more
wiley   +1 more source

Orbital-Scale Modulation of the Middle Miocene Third-Order Eustatic Sequences from the Northern South China Sea

Journal of Marine Science and Engineering
The Miocene Hanjiang Formation (HJF) is a remarkable exploration target in the Pearl River Mouth Basin (PRMB). However, challenges such as bias in current sequence stratigraphic schemes, limitations in high-resolution stratigraphic schemes, and ...
Haichun Xu, Nan Wu, Xinyan Xu, Bo Yu, Ke Xu   +4 more
doaj   +1 more source

G-D's Physics Revises the Universe's Cosmological & Astronomical "Time-Scaling"!

, 2023
Abstract Twenty-First Century Theoretical Physics is undergoing a profound “Paradigmatic-Shift” from the Old “Material-Causal” Paradigm underlying General Relativity Theory (GRT) & Quantum Mechanics (QM) to the New “A-Causal Computation” “G-D’s Physics” (previously termed: “Computational Unified Field Theory”, CUFT)! This article presents empirical
openaire   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Multi-Element Non-Coherent Time-Varying Encounter Analysis of Complex Hazards Contributing to Pearl River Estuary Flooding

Redai dili
In conjunction with global warming, the frequency and intensity of typhoons in the Pearl River Estuary region are increasing annually, and coastal cities are becoming more vulnerable to compound disasters triggered by upstream flooding, typhoons, and ...
Zhang Ka, Liu Bingjun, Hu Shikun, Zeng Hui, Zhang Mingzhu, Li Dan   +5 more
doaj   +1 more source

Magnetically Actuated Drops‐on‐Stilts Microrobots for Transport and Delivery of Hydrophobic Cargo

Advanced Materials Interfaces, EarlyView.
Iron oxide nanoparticles and oil droplets in external magnetic fields form “drops‐on‐stilts” microrobots that transport hydrophobic cargo. Tunable nanoparticle–droplet interactions generate stilt‐like structures. Field rotation enables walking, obstacle navigation, and collective motion.
Oluwafemi Ligan, Hrishabh Singh, Sahil Kulkarni, Hong Huy Tran, James M. Kikkawa, Daeyeon Lee, Ravi Radhakrishnan, Edward Steager, Hyun Koo, Kathleen Stebe   +9 more
wiley   +1 more source

Revitalizing Traditional Astronomical Instruments: Developing a Local Dial Model for Accurate Prayer Time Determination

Al-Hilal
This study addresses the limitations of contemporary prayer time instruments, which often require complex calculations, electricity, internet connectivity, or direct exposure to sunlight, by developing a practical, local dial–based tool for community use.
Sartika Sartika, Hisbullah Salam, Fakhruddin Mansyur, Nurhidaya M   +3 more
doaj   +1 more source

A lower to middle Eocene astrochronology for the Mentelle Basin (Australia) and its implications for the geologic time scale

Earth and Planetary Science Letters, 2020
The geologic time scale for the Cenozoic Era has been notably improved over the last decades by virtue of integrated stratigraphy, combining high-resolution astrochronologies, biostratigraphy and magnetostratigraphy with high-precision radioisotopic ...
M. Vahlenkamp, D. De Vleeschouwer, S. Batenburg, K. Edgar, E. Hanson, Mathieu Martinez, H. Pälike, K. MacLeod, Yong-Xiang Li, C. Richter, K. Bogus, R. Hobbs, B. Huber   +12 more
semanticscholar   +1 more source