Results 91 to 100 of about 282,229 (301)

Dead Zones as Thermal Barriers to Rapid Planetary Migration in Protoplanetary Disks

, 2010
Planetary migration in standard models of gaseous protoplanetary disks is known to be very rapid ($\sim 10^5$ years) jeopardizing the existence of planetary systems.
Baruteau, Chiang, D'Alessio, D'Angelo, Dullemond, Jang-Condell, Johnson, Kretke, Laughlin, Masset, Matsumura, Menou, Oishi, Schlaufman, Scholz, Shakura, Tanaka, Udry, Ward   +18 more
core   +1 more source

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

Advanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz, Lukas E. Lehner, Stepan Demchyshyn, Bekele Hailegnaw, Phillip Jahelka, Magdalena Breitwieser, Sercan Özen, Andrea Denker, Jürgen Bundesmann, Alina Hanna Dittwald, Dilara Karabulut, Philipp Tockhorn, Steve Albrecht, Felix Lang, Markus C. Scharber, Michael D. Kelzenberg, Harry A. Atwater, Martin Kaltenbrunner   +17 more
wiley   +1 more source

Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics

Advanced Materials, EarlyView.
“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair, Hrisheekesh Thachoth Chandran, Karl Leo, Hans Kleemann   +3 more
wiley   +1 more source

The Mass-Metallicity Relation for Giant Planets

, 2016
Exoplanet discoveries of recent years have provided a great deal of new data for studying the bulk compositions of giant planets. Here we identify 47 transiting giant planets ($20 M_\oplus < M < 20 M_{\mathrm{J}}$) whose stellar insolation is low enough (
Fortney, Jonathan J., Lopez, Eric D., Murray-Clay, Ruth A., Thorngren, Daniel P.   +3 more
core   +1 more source

3D Printing of Highly Dense and Translucent Zirconia Parts for Dental Applications: Effect of Filament Overlapping

Advanced Materials Technologies, EarlyView.
This study formulated a 5Y‐PSZ zirconia paste for extrusion‐based additive manufacturing via direct ink writing, producing dense ceramic structures for dental applications. A colloidal approach with 47 vol% nanometric powder and tailored additives optimized rheology and printability.
Juliana de Freitas Gouveia Silva, Manuel Fellipe Rodrigues Pais Alves, Ana Carolina da Silva, Tiago Moreira Bastos Campos, Renata Marques De Melo, Susana Maria Henriques Olhero   +5 more
wiley   +1 more source

Concurrent Accretion and Migration of Giant Planets in their Natal Disks with Consistent Accretion Torque. II. Parameter Survey and Condition for Outward Migration

The Astrophysical Journal
Migration typically occurs during the formation of planets and is closely linked to the planetary formation process. In classical theories of nonaccreting planetary migration, both type I and type II migration typically result in inward migration, which ...
Junpeng Pan, Ya-Ping Li, Yi-Xian Chen, Shigeru Ida, Douglas N. C. Lin   +4 more
doaj   +1 more source

How internal structure shapes the metallicity of giant exoplanets

Astronomy & Astrophysics
Context. The composition and internal structure of gas giant exoplanets encode key information about their formation and evolution. Aims. We investigate how different assumed interior structures affect the inferred bulk metallicity and its correlation ...
Peerani Lorenzo, Howard Saburo, Helled Ravit   +2 more
doaj   +1 more source

Can solid body destruction explain abundance discrepancies in planetary nebulae?

, 2010
In planetary nebulae, abundances of oxygen and other heavy elements derived from optical recombination lines are systematically higher than those derived from collisionally excited lines. We investigate the hypothesis that the destruction of solid bodies
Bloecker, Ercolano, Field, Ford, Fuentes, García-Rojas, Gomes, González-Alfonso, Grażyna Stasińska, Henney, Huggins, Liu, Liu, Liu, Loup, López-Martín, Löhne, Morbidelli, Robertson-Tessi, Trilling, Villaver, Villaver, Villaver, Weinberger, William J. Henney   +24 more
core   +2 more sources

Microfluidic Engineering of Chitosan‐Coated Nanoemulsions for Controlled Release and Stability in Space Pharmaceutics

Advanced Materials Technologies, EarlyView.
Microfluidic engineering enables the fabrication of chitosan‐coated, melatonin‐loaded nanoemulsions with controlled release and enhanced physicochemical stability for space pharmaceutics. Interfacial biopolymer coating modulates droplet behavior under accelerated thermal stress and simulated microgravity.
Modupe Adebowale, Nguyen Van Duc Long, Philip M Williams, Volker Hessel   +3 more
wiley   +1 more source

Turbulence destroys thermal lobes around Mars-sized planetary embryos

Astronomy & Astrophysics
Context. The release of heat by a planetary embryo modifies the local density perturbations, forming thermal lobes in its vicinity, and thereby altering the torque exerted by the disk on the embryo.
Chametla R. O., Moranchel-Basurto A., Sánchez-Salcedo F. J.   +2 more
doaj   +1 more source