Results 41 to 50 of about 3,849 (269)

Wake in faint television meteors [PDF]

open access: yes, 1992
The two component dustball model was used in numerical lag computation. Detached grain lag is typically less than 2 km, with expected wakes of a few hundred meters. True wake in television meteors is masked by apparent wake due to the combined effects of
Robertson, M. C., Hawkes, Robert L.
core  

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

open access: yesAdvanced 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   +6 more
wiley   +1 more source

A Historical Analysis of the Quranic Concept of Lapidating Devils with Meteors [PDF]

open access: yesReligious Inquiries, 2016
The Quranic concept of lapidating devils with meteors has received a variety of interpretations throughout Islamic history. In the past, it was interpreted to mean heavenly meteors thrown at devils in order to prevent them from giving ear to heavenly ...
Jafar Nekoonam   +1 more
doaj  

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

open access: yesAdvanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

Autonomous spectrographic system to analyse the main elements of fireballs and meteors

open access: yesEarth, Planets and Space, 2018
We present a meteor observation system based on imaging CCD cameras, wide-field optics and a diffraction grating. This system is composed of two independent spectrographs with different configurations, which allows us to capture images of fireballs and ...
Francisco Ángel Espartero   +4 more
doaj   +1 more source

Large Language Model‐Based Chatbots in Higher Education

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
The use of large language models (LLMs) in higher education can facilitate personalized learning experiences, advance asynchronized learning, and support instructors, students, and researchers across diverse fields. The development of regulations and guidelines that address ethical and legal issues is essential to ensure safe and responsible adaptation
Defne Yigci   +4 more
wiley   +1 more source

Cuando la política fue temporal. Periódicos con nombre de meteoros en la prensa rioplatense decimonónica (1820-1830)

open access: yesNuevo mundo - Mundos Nuevos, 2021
During the 1820s and 1830s in the River Plate, a series of newspapers named after atmospheric phenomenons came to light: El Pampero (1822 y 1829), El Aguacero (1823), El Rayo (1826, 1831, 1833), El Granizo (1827), El Relámpago (1831, 1833), El Trueno ...
María Laura Romano
doaj   +1 more source

Orbits of photographic meteors [PDF]

open access: yes, 1967
Photographic observations of meteors and orbit ...
Mc Crosky, R. E.
core  

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