Results 51 to 60 of about 133,492 (337)

A Novel Approach on Rapid Alloy Development of Tool Steels for Laser Powder Bed Fusion by In Situ Alloying

Advanced Engineering Materials, EarlyView.
A novel approach for alloy development in laser powder bed fusion is introduced. Instead of producing massive samples of one composition at a time, prepressed powder bed samples produced from powder mixtures are processed. Guidelines for the selection of precursor powders are developed.
Felix Großwendt, Anna Strauch, Jonathan Lentz, Arne Röttger, Rainer Fechte‐Heinen, Sebastian Weber, Werner Theisen   +6 more
wiley   +1 more source

Detecting the Dusty Debris of Terrestrial Planet Formation

, 2004
We use a multiannulus accretion code to investigate debris disks in the terrestrial zone, at 0.7-1.3 AU around a 1 solar mass star. Terrestrial planet formation produces a bright dusty ring of debris with a lifetime of at least 1 Myr. The early phases of
Benjamin C. Bromley, Lynden-Bell D., Scott J. Kenyon, Weinberger A. J.   +3 more
core   +1 more source

A decreased probability of habitable planet formation around low-mass stars [PDF]

, 2007
Smaller terrestrial planets (< 0.3 Earth masses) are less likely to retain the substantial atmospheres and ongoing tectonic activity probably required to support life.
Chambers J. E., Chambers J. E., Clarke C. J., Gonzalez G., Greaves J. S., John Scalo, Morbidelli A., Sean N. Raymond, Victoria S. Meadows, Walker J. C. G.   +9 more
core   +3 more sources

Atmospheric Dynamics of Terrestrial Planets [PDF]

, 2018
The solar system presents us with a number of planetary bodies with shallow atmospheres that are sufficiently Earth-like in their form and structure to be termed “terrestrial.” These atmospheres have much in common, in having circulations that are driven primarily by heating from the Sun and radiative cooling to space, which vary markedly with latitude.
Read, P. L., Lewis, S. R., Vallis, G. K.
openaire   +1 more source

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

Advanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach, Oliver Schenk, Valérian Iss, Ali Rajaei, Jiali Zhang, Felix Weber, Christoph Broeckmann   +6 more
wiley   +1 more source

On the Migration of Jupiter and Saturn: Constraints from Linear Models of Secular Resonant Coupling with the Terrestrial Planets

, 2011
We examine how the late divergent migration of Jupiter and Saturn may have perturbed the terrestrial planets. We identify six secular resonances between the nu_5 apsidal eigenfrequency of Jupiter and Saturn and the four eigenfrequencies of the ...
Adams, Agnor, Agnor, Batygin, Bottke, Bretagnon, Brouwer, Bryden, Bryden, Chiang, Craig B. Agnor, Cuk, D. N. C. Lin, Duncan, Goldreich, Hahn, Hahn, Hansen, Hartmann, Ida, Kretke, Levison, Levison, Lin, Lissauer, Lissauer, Lyra, Malhotra, Minton, Minton, Morbidelli, Murray, Nagasawa, Papaloizou, Thommes, Thommes, Thommes, Tiscareno, Ward, Wetherill   +39 more
core   +1 more source

In Situ Formation of a Melt‐Solid Interface Toward Stable Oxygen Reduction in Protonic Ceramic Fuel Cells

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
Protonic ceramic fuel cells offer a promising route to generate power efficiently but face critical challenges in achieving industrially viable activity and stability at their cathodes in CO2‐containing air. This report proposes a new cathode material design strategy to enable the cathode to be both catalytically active and CO2 tolerant through the ...
Desheng Feng, Mengran Li, Vanessa K. Peterson, Rijia Lin, Anita D'Angelo, Olexandra Marenych, Anya Yago, Dominique Appadoo, Tianjiu Zhu, Muhammad Yazid Bin Zulkifli, Shuai Gao, Yuming Wu, Xiaohe Tian, Xiaoyang Du, Zhonghua Zhu   +14 more
wiley   +1 more source

A Perfect Tidal Storm: HD 104067 Planetary Architecture Creating an Incandescent World

The Astronomical Journal
The discovery of planetary systems beyond the solar system has revealed a diversity of architectures, most of which differ significantly from our system.
Stephen R. Kane, Tara Fetherolf, Zhexing Li, Alex S. Polanski, Andrew W. Howard, Howard Isaacson, Teo Močnik, Sadie G. Welter   +7 more
doaj   +1 more source

Integral Education in Light of Earthrise [PDF]

Integral Review, 2015
This article explores the relationship between integral education and the emerging terrestrial consciousness—a consciousness of interdependency, sovereignty, and earthly responsibility.
Craig Chalquist
doaj  

The Evolution of Terrestrial-Type Planets [PDF]

Applied Optics, 1969
The present internal state of the earth and the age of various events such as core formation and continental formation can be used to place fairly strong constraints on the early history of the earth and, presumably, the other terrestrial planets. The present internal configuration of the earth shows that it is an extremely differentiated body, and the
openaire   +5 more sources