Results 91 to 100 of about 397,235 (349)

Oxygenation, Life, and the Planetary System during Earth's Middle History: An Overview. [PDF]

Astrobiology, 2021
Lyons TW, Diamond CW, Planavsky NJ, Reinhard CT, Li C.   +4 more
europepmc   +1 more source

On the Dynamics of Comets in Extrasolar Planetary Systems

, 2019
Since very recently, we acquired knowledge on the existence of comets in extrasolar planetary systems. The formation of comets together with planets around host stars now seems evident.
Beust, Brasser, Brasser, Carusi, Carusi, Cuntz, Eggl, Eiroa, Fouchard, Fouchard, Fouchard, Gonzalez, Hanslmeier, Henry, Kaib, Kaib, Kiefer, Kopparapu, Kovtyukh, Loibnegger, Lovis, Marino, Matrà, Rappaport, Raymond, Rickman, Rickman, Stern, Tuomi, van Belle, Welsh, Welsh, Whipple, Wyatt   +33 more
core   +1 more source

The Navigation System, The Planetary Gardener, and the Prism:

, 2022
Sohail Inayatullah, Emma Paine, Otto Scharmer   +2 more
openalex   +2 more sources

Micro and Nanostructural Diversity of Lizard Osteoderm Capping Tissue in Relation to Mechanical Performance

Advanced Functional Materials, EarlyView.
This study shows that lizard osteoderm capping tissue is a hyper‐mineralized hydroxyapatite layer consistently covering the superficial osteoderm surface in those species studied here, yet it varies greatly in morphology, nanostructure, and mechanical performance across species.
Adrian Rodriguez‐Palomo, Marius Didziokas, Malene Siri Berg Jacobsen, Thorbjørn Erik Køppen Christensen, Innokenty Kantor, Mads Ry Vogel Jørgensen, Klaus Pagh Almtoft, Jesper Skovhus Thomsen, Anthony Herrel, Catherine J.A. Williams, Henrik Birkedal   +10 more
wiley   +1 more source

Nanolayer‐Encapsulated Stretchable Liquid‐Metal Sheets for Thermal Management

Advanced Functional Materials, EarlyView.
A stretchable liquid metal sheet with both high thermal conductivity and mechanical flexibility is developed. Its trilayer structure, comprising copper‐particle‐dispersed gallium liquid metal encapsulated by styrene‐butadiene‐styrene nanosheets, shows 40.4 W m−1 K−1 conductivity, elongation exceeding 200%, and retention of 96% of its initial ...
Daisuke Kuse, Yudai Kaneko, Ryohei Fujita, Tatsuhiro Horii, Daishi Shiojiri, Yuta Ozawa, Kyohei Nagatake, Tamami Takano, Yutaka Isoda, Aoi Koishikawa, Takashi Goto, Ai Ueno, Shoji Maruo, Kazuhide Ueno, Toshinori Fujie, Hosei Nagano, Hiroki Ota   +16 more
wiley   +1 more source

Analysis of Load Sharing Performance of Planetary Gear Reducer in Electric Vehicle Hub Motor

Jixie chuandong, 2017
As for the floating planetary gear reducer in hub motor,a dynamics equation of dual floating planetary transmission system is established,and then the calculation formula of load sharing coefficient is deduced.
Zhang Jiang, Qing Xunpeng, Chen Haoran
doaj  

Formation and composition of planets around very low mass stars

, 2016
The recent detection of planets around very low mass stars raises the question of the formation, composition and potential habitability of these objects.
Alibert, Yann, Benz, Willy
core   +1 more source

Spin‐Dependent Generation of Surface‐Bound Radicals Toward Selective and Long‐Lasting Water Purification

Advanced Functional Materials, EarlyView.
This study develops a novel atomic engineering strategy to fine‐tune the spin state of α‐Fe2O3 catalysts toward a medium‐spin state, thereby modulating peroxymonosulfate activation and selectively yielding surface‐bound radicals. Compared with free radicals, surface‐bound radicals exhibit moderated oxidation potential, extended lifespan, surface ...
Shuyu Wang, Zhonglin Chen, Jimin Shen, Pengwei Yan, Jing Kang, Binyuan Wang, Shengxin Zhao, Xiaoguang Duan   +7 more
wiley   +1 more source

Disruption of Planetary System Architectures by Stellar Flybys

Universe
We investigate the survivability of solar system-like planetary systems during close encounters in stellar associations using a suite of 1980 N-body simulations.
Robert Przyłuski, Hans Rickman, Paweł Wajer, Tomasz Wiśniowski, Diego Turrini, Danae Polychroni, Camilla Danielski, J. M. Diederik Kruijssen, Steven Longmore, Mélanie Chevance   +9 more
doaj   +1 more source

On the Utility (or Futility) of Using Stable Water Isotopes to Constrain the Bulk Properties of Tropical Convection

Journal of Advances in Modeling Earth Systems, 2018
Atmospheric water‐vapor isotopes have been proposed as a potentially powerful constraint on convection, which plays a critical role in Earth's present and future climate.
Suqin Q. Duan, Jonathon S. Wright, David M. Romps   +2 more
doaj   +1 more source