Results 81 to 90 of about 8,839 (261)

The Temperature Anisotropy and Helium Abundance Features of Alfvénic Slow Solar Wind Observed by Parker Solar Probe, Helios, and Wind Missions

The Astrophysical Journal Letters
Slow solar wind is typically characterized as having low Alfvénicity, but the occasional occurrence of highly Alfvénic slow solar wind (HASSW) raises questions about its source regions and evolution.
Jia Huang, Davin E. Larson, Tamar Ervin, Mingzhe Liu, Oscar Ortiz, Mihailo M. Martinović, Zhenguang Huang, Alexandros Chasapis, Xiangning Chu, B. L. Alterman, Zesen Huang, Wenwen Wei, J. L. Verniero, Lan K. Jian, Adam Szabo, Orlando Romeo, Ali Rahmati, Roberto Livi, Phyllis Whittlesey, Samer T. Alnussirat, Justin C. Kasper, Michael Stevens, Stuart D. Bale   +22 more
doaj   +1 more source

Biomass DNA: An Emerging Building Block for Advanced Materials

Advanced Materials, EarlyView.
Biomass DNA is rapidly emerging from its traditional role as a genetic blueprint to serve as a versatile abundant, highly programmable polymeric building block. This review highlights the transformation of macroscopic bulk biomass DNA into next generation of functional materials, spanning from dynamic hydrogels, sustainable bioplastics, and high ...
Yuwei Hu, Itamar Willner, Li Niu
wiley   +1 more source

Probing the Evolution of Solar Wind Temperature Anisotropies in the Inner Heliosphere

The Astrophysical Journal Letters
Using solar wind measurements from Solar Orbiter, we investigated the distribution and evolution of the temperature anisotropy of alpha-particles (the ratio of perpendicular to parallel temperatures) in the inner heliosphere, between 0.29 and ...
Vamsee Krishna Jagarlamudi, P. Mostafavi, J. C. Palacios, S. Bourouaine, N. E. Raouafi, Rungployphan Kieokaew, Tereza Ďurovcová, Andrey Fedorov, Philippe Louarn   +8 more
doaj   +1 more source

Near‐Infrared Imaging of H2O2 in Plants With Nanosensors Under Environmentally Changing Conditions

Advanced Materials, EarlyView.
This paper reports a ratiometric nanosensor enabling robust, multivariate detection of stress signals (H2O2) in plants, with high resistance to light fluctuations and mechanical disturbances. Single‐walled carbon nanotubes serve as the sensor, Egyptian Blue nanosheets serve as a stable reference, and plant autofluorescence serves as a label‐free ...
Jiaqi Li, Bjoern F. Hill, Chen Ma, Juliana Gretz, Tanuja Kistwal, Janus A. C. Wartmann, Justus T. Metternich, Juan Pablo Giraldo, Sebastian Kruss   +8 more
wiley   +1 more source

Spotting the Source of Slow Solar Wind

Eos, 2016
A new study suggests that magnetic reconnection may fuel slow solar winds, which top out at speeds below 500 kilometers per second.
openaire   +1 more source

Origin and Acceleration of Fast and Slow Solar Wind [PDF]

Symposium - International Astronomical Union, 2004
Before the advent of the Solar and Heliospheric Observatory (SOHO, launched in 1995), we had little information on how coronal plasma gets accelerated to the high speed measured in situ. The Ultraviolet Coronagraph Spectrometer (UVCS) on SOHO, acquiring UV data over the first few solar radii, a region unexplored in this spectral range, allowed us to ...
openaire   +2 more sources

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

Selected solar wind parameters at 1 AU through two solar activity cycles

Annales Geophysicae
In situ measurements of the solar wind largely cover more than two solar magnetic activity cycles, namely 20 and 21. This is a very appealing opportunity to study the influence of the activity cycle on the behaviour of the solar wind parameters.
R. Bruno, U. Villante, A. Stecca
doaj  

Two Types of 1/f Range in Solar Wind Turbulence

The Astrophysical Journal Letters
The 1/ f noise is a ubiquitous phenomenon in natural systems. Since the advent of space exploration, the 1/ f range has been consistently observed in in situ solar wind measurements throughout the heliosphere, sparking decades of debate regarding its ...
Zesen Huang, Marco Velli, B. D. G. Chandran, Chen Shi, Yuliang Ding, Lorenzo Matteini, Kyung-Eun Choi   +6 more
doaj   +1 more source

Chasing Down the Slow Solar Wind

Eos, 2016
The Sun's plasma blasts Earth's magnetosphere at more than a million miles per hour. The fastest pours from holes in the corona, but until recently the source of the "slow" solar wind was a mystery.
openaire   +1 more source