Results 71 to 80 of about 9,521 (349)
The Astrophysical Journal, 2023 The fast Fourier transform (FFT) based periodicity search methods provide an efficient way to search for millisecond and binary pulsars but encounter significant sensitivity degradation while searching for long period and short duty cycle pulsars.
S. Singh +5 more
doaj +1 more source
Design Principles for Fluid Molecular Ferroelectrics
Advanced Materials, EarlyView.A major challenge for soft condensed matter is predicting whether a fluid molecular material will form ferroelectric phase with nematic or smectic order. Through systematic synthesis, and by analogy to solid molecular ferroelectrics, it is shown that subtle hydrogen–fluorine (H/F) substitution(s) allows for tuneable syn‐parallel pairing motifs ...
Calum J. Gibb +3 more
wiley +1 more source
Diversity in Fermi/GBM Gamma-Ray Bursts: New Insights from Machine Learning
The Astrophysical JournalClassification of gamma-ray bursts (GRBs) has been a long-standing puzzle in high-energy astrophysics. Recent observations challenge the traditional short versus long viewpoint, where long GRBs are thought to originate from the collapse of massive stars ...
Dimple, K. Misra, K. G. Arun
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Advanced Materials, EarlyView.A‐site high‐entropy engineering creates a robust Pr0.2Ba0.2La0.2Sr0.2Ca0.2FeO3‐δ (PBLSCF) perovskite‐based solid oxide fuel cell (SOFC) anode with in situ Fe nanoparticle exsolution to boost fuel oxidation and durability, achieving strong sulfur tolerance and coking resistance.
Lei Wu +10 more
wiley +1 more source
Arthur Mee — Observational Astronomy, a book for beginners. Cardiff, 1893 [PDF]
, 1893 Arthur Mee — Observational Astronomy, a book for beginners. Cardiff, 1893. In: Bulletin astronomique, tome 10, 1893.
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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 +6 more
wiley +1 more source
Gravitational Wave Astronomy [PDF]
, 2006 Gravitational wave astronomy is expected to become an observational field within the next decade. First direct detection of gravitational waves is possible with existing terrestrial-based detectors, and highly probable with proposed upgrades.
Landry, Michael R
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Advanced Materials Interfaces, EarlyView.A flexible and highly reliable piezoelectric pressure sensor based on GaN p–n homojunction microrod arrays on graphene is demonstrated. The sensor exhibits high sensitivity, rapid response, excellent cyclic durability, and stable performance after thermal aging and PBS immersion, highlighting its potential for harsh‐environment and biomedical pressure ...
Asad Ali +5 more
wiley +1 more source
A Guide for the Teaching of Astronomy in the Elementary School [PDF]
, 1967 It is the purpose of this thesis to (1) present a guide for the teaching of astronomy in the upper elementary grades; (2) review basic concepts and subject matter in astronomy; (3) present current astronomical information; (4) present astronomy work ...
Sacharow, Allan
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Extragalactic Astronomy and Cosmology: An Introduction [PDF]
, 2006 Starting with the description of our home galaxy the Milky Way, this cogently written textbook introduces the reader to the astronomy of galaxies, their structure, active galactic nuclei, evolution and large scale distribution.
Schneider, Peter
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