Results 141 to 150 of about 216,492 (336)

Piezo‐Phototronic PVDF/HfO2/Nano‐Cu Heterostructured Thin Film for Flexible Self‐Powered Multimodal Sensing

open access: yesAdvanced Science, EarlyView.
Electrospinning a composite of PVDF, HfO2, and nano‐Cu transforms the discrete precursors into a continuous nanofiber mesh, forming a multi‐interface heterostructure with embedded nanoparticles. The presence of HfO2 and nano‐Cu at the fiber interfaces induces a highly aligned β‐phase, which enhances piezoelectric crystallinity and improves the material'
Jiawei Gu   +9 more
wiley   +1 more source

Photometry of the Didymos System across the DART Impact Apparition

open access: yesThe Planetary Science Journal
On 2022 September 26, the Double Asteroid Redirection Test (DART) spacecraft impacted Dimorphos, the satellite of binary near-Earth asteroid (65803) Didymos.
Nicholas Moskovitz   +80 more
doaj   +1 more source

Dynamics of Small Solar System Bodies and Exoplanets [PDF]

open access: yes, 2010
The Gaia space mission to be operated in early 2012 by the European Space Agency (ESA), will make a huge step in our knowledge of the Sun's neighbor-hood, up to the Magellanic clouds. Somewhat closer, Gaia will also provide ma jor improvements in the science of asteroids, and more generally to our Solar System, either directly or indirectly.
openaire   +1 more source

Artificial Intelligence‐Driven Soft Bioelectronics for Self‐Powered Respiration Monitoring

open access: yesAdvanced Science, EarlyView.
Artificial intelligence‐driven soft bioelectronics for self powered respiration monitoring based on triboelectric nanogenerators (TENGs), piezoelectric nanogenerators (PENGs), and magnetoelastic generators (MEGs) enable continuous and multi‐scenario respiratory biomechanical data collection. Coupled with machine learning and big data driven diagnostics,
Xinkai Xu, Xiao Xiao, Rui Guo, Jun Chen
wiley   +1 more source

Planetary astronomy [PDF]

open access: yes
The goal is to use a variety of observational techniques and instruments to reduce, interpret, and synthesize groundbased astronomical data concerning the comets, asteroids, and other small bodies of the solar system in order to study the compositions ...
Chapman, Clark R.
core   +1 more source

Evolution of small bodies in the solar system

open access: yesJapanese Magazine of Mineralogical and Petrological Sciences, 2005
Orbital evolutions and spectral changes of small bodies in the solar system are discussed. Recent discovery of Kuiper belt objects changed the image of our solar system. The size of the largest body is close to that of Pluto. Orbital stability and simulation studies clarified a route from Kuiper belt objects to short period comets through Jupiter ...
openaire   +2 more sources

Bidirectionally Thermochromic Nanocolloid System for on‐Demand Optical Switching and Agricultural Energy Management

open access: yesAdvanced Science, EarlyView.
A bidirectionally thermochromic nanocolloid system is developed for facility agriculture. The bidirectional and wide‐temperature response dynamically modulates light radiation, stabilizing the indoor climate, improving supplemental lighting efficiency, and accelerating plant photosynthesis.
Qinbo Jiang, Jiayi Li, Hui Zhang
wiley   +1 more source

The DECam Ecliptic Exploration Project (DEEP). II. Observational Strategy and Design

open access: yesThe Astronomical Journal
We present the DECam Ecliptic Exploration Project (DEEP) survey strategy, including observing cadence for orbit determination, exposure times, field pointings and filter choices.
Chadwick A. Trujillo   +21 more
doaj   +1 more source

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