Results 51 to 60 of about 52,265 (308)

Will 3552 Don Quixote Escape from the Solar System?

Journal of Mathematical and Fundamental Sciences, 2013
Asteroid 1983 SA, well known as 3552 Don Quixote, is one of Near Earth Asteroids (NEAs) which is the most probable candidate for the cometary origin, or otherwise as Jupiter-Family-Comets (JFCs). The aim of this study is to investigate the possibility of
Suryadi Siregar
doaj  

Spatially Decoupling Heating and Evaporation for Convection‐Enhanced 3D Solar Evaporation With Continuous Salt Harvesting

Advanced Functional Materials, EarlyView.
An architecture‐enabled bottom‐heated 3D solar convective evaporator spatially decouples photothermal heating from evaporation, triggering natural convection that intensifies sidewall vapour removal and heat transfer. The system achieves significantly enhanced evaporation rates over 2D and conventional 3D designs while confining salt precipitation to ...
Xiaolong Ma, Yan Zhao, Yan Yan, Muhammad Amjad, Guice Yao, Hui Gao, Shudan Wei, Dongsheng Wen   +7 more
wiley   +1 more source

Solar Storm Type Classification Using Probabilistic Neural Network compared with the Self-Organizing Map [PDF]

, 2012
One of the task of the LAPAN is making observation and forecasting of solar storms disturbance. This disturbances can affect the earths electromagnetic field that disrupt the electronic and navigational equipment on earth.
Setiahadi, Bambang, Adipranata, Rudy, Satiabudhi, Gregorius, N, ADRIAN HARTANTO   +3 more
core  

Electrochromic orbit control for smart-dust devices

, 2012
Recent advances in MEMS (micro electromechanical systems) technology are leading to spacecraft which are the shape and size of computer chips, so-called SpaceChips, or ‘smart dust devices’.
Colombo, Camilla, McInnes, Colin, Lucking, Charlotte, McInnes, Colin R.   +3 more
core   +1 more source

The NC-CC Isotope Dichotomy: Implications for the Chemical and Isotopic Evolution of the Early Solar System

, 2020
International audienceUnderstanding the formation of our planetary system requires identification of the materials from which it originated and the accretion processes that produced the planets.
Lodders, Katharina, Bermingham, Katherine, R, Marty, Bernard, Bermingham, Katherine,, Füri, Evelyn   +4 more
core   +1 more source

Geoelectrochemistry-driven alteration of amino acids to derivative organics in carbonaceous chondrite parent bodies

Nature Communications, 2022
Researchers at Earth-Life Science Institute (ELSI) discovered a chemical process that can explain the very low amino acid abundances in aqueously altered carbonaceous chondrites, deepening our understanding on the Solar System chemical evolution.
Yamei Li, Norio Kitadai, Yasuhito Sekine, Hiroyuki Kurokawa, Yuko Nakano, Kristin Johnson-Finn   +5 more
doaj   +1 more source

Steering Oxygen Activation Pathways via Redox Dual‐Defects in 2D Hydrated WO3 for High‐Yield Singlet Oxygen Evolution

Advanced Functional Materials, EarlyView.
Redox dual‐defects (Cs substitution and O vacancies) in 2D hydrated WO3 steer O2 activation toward selective singlet oxygen evolution. WO‐CO achieves 8.6–15.8 times higher 1O2 production than single‐defect or pristine catalysts, enabling efficient pollutant mineralization via a pathway‐selective photocatalytic mechanism.
Sheng‐Qi Guo, Mingqi Xiao, Fangyuan Zhang, Hui Li, Yuli Jia, Zhenfang Zhang, Liqun Ye, Bo Yang, Tianyi Ma   +8 more
wiley   +1 more source

Heating of the low-latitude solar wind by dissipation of turbulent magnetic fluctuations

, 2001
We test a theory presented previously to account for the turbulent transport of magnetic fluctuation energy in the solar wind and the related dissipation and heating of the ambient ion population. This theory accounts for the injection of magnetic energy
Matthaeus, William H., Richardson, John D., Oughton, Sean, Smith, Charles W., Ness, Norman F., Zank, Gary P.   +5 more
core   +1 more source

Relationship between solar wind corotating interaction regions and the phasing and intensity of Saturn kilometric radiation bursts [PDF]

, 2008
Voyager spacecraft measurements of Saturn kilometric radiation (SKR) identified two features of these radio emissions: that they pulse at a period close to the planetary rotation period, and that the emitted intensity is correlated with the solar wind ...
L. Lamy, Badman, S. V., S. W. H. Cowley, Lamy, L., P. Zarka, S. V. Badman, B. Cecconi, L. Lamy (7600208), Cecconi, B., P. Zarka (7600217), S. V. Badman (7590704), B. Cecconi (7600220), Stanley W. H. Cowley (7590644), Cowley, S. W. H., Zarka, P.   +14 more
core   +1 more source

Snapshots of an Evolving Solar Nebula Recorded in Nucleosynthetic Sr and Ba Signatures of Early Condensates

The Astrophysical Journal Letters
The discovery of extreme strontium isotope anomalies ( μ ^84 Sr) in refractory leachates from Allende fine-grained calcium-aluminum-rich inclusions (CAIs) is at odds with long-standing predictions regarding the homogenization of presolar components in ...
R. T. C. Marquez, B. L. A. Charlier, F. L. H. Tissot   +2 more
doaj   +1 more source