Results 71 to 80 of about 3,596 (289)
Dynamical Shake‐up of Planetary Systems. II.N‐Body Simulations of Solar System Terrestrial Planet Formation Induced by Secular Resonance Sweeping [PDF]
The Astrophysical Journal, 2008 To appear in ...
Thommes, E. W. +2 more
openaire +2 more sources
Sputtering Mechanism of an Unsintered Organic–Inorganic Sputtering Target for Perovskite Solar Cells
Advanced Energy Materials, EarlyView.An unsintered MAPbI3 sputtering target fabricated via a mechanochemical route enables large‐area vacuum deposition of perovskite absorber layers, while revealing an ion–photon coupled decomposition mechanism that governs target erosion and film composition under RF plasma exposure.
Doha Lim +9 more
wiley +1 more source
Solar sail mission applications and future advancement [PDF]
, 2010 Solar sailing has long been envisaged as an enabling technology. The promise of open-ended missions allows consideration of radically new trajectories and the delivery of spacecraft to previously unreachable or unsustainable observation outposts.
Macdonald, M., McInnes, C.R.
core
Advanced Energy Materials, EarlyView.Metal‐halide perovskite solar cells offer high‐efficiency power for orbital missions but suffer from permanent proton‐induced degradation. This work identifies non‐ionizing energy loss (NIEL) as the primary driver of irreversible failure, inducing atomic displacements and microcracks in the high‐fluence regime. Through energy‐tuned mapping and scalable
Jangwon Byun +10 more
wiley +1 more source
ASTR 518 Inner Solar System: The Terrestrial Planets [PDF]
, 2007 Course syllabus for ASTR 518 Inner Solar System: The Terrestrial Planets Course description: Discusses the planets Mercury, Venus, Earth, and Mars. Emphasizes the basic properties of the planets, how they were formed, their atmospheres, and the natural ...
Fox, Richard W.
core
Rapid accretion and early core formation on asteroids and the terrestrial planets from Hf–W chronometry [PDF]
, 2002 The timescales and mechanisms for the formation and chemical differentiation of the planets can be quantified using the radioactive decay of short-lived isotopes.
C. Münker +7 more
core +1 more source
Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology
Applied Economic Perspectives and Policy, EarlyView.ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková +4 more
wiley +1 more source
A multi-scale comparison of polar vortices on Earth, Mars, Titan, and Venus
地球与行星物理论评Although previous studies have analyzed the unique structural characteristics of the polar vortices on Earth, Venus, Mars, and Titan, the understanding of the polar vortices on Venus and Titan is primarily based on small-scale case studies due to the ...
Zheng Sheng +3 more
doaj +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT This study investigates the flow of a magnetized hybrid nanofluid over a permeable stretching surface. The mass and thermal transport within the system is regulated using the Cattaneo–Christov flux theory. The fluid is additionally subjected to thermophoresis, chemical reaction, Brownian motion, and activation energy effects.
Ebrahem A. Algehyne +6 more
wiley +1 more source
The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory
Astronomische Nachrichten, EarlyView.ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth +20 more
wiley +1 more source