Results 121 to 130 of about 35,527 (304)

Mhd waves in stellar winds and accretion disks

, 2000
"Alfv?en waves have been used to explain the heating of stellar coronae andthe production of stellar winds in many regions of the Hertzsprung-Russell (HR)diagram. The waves were used as a major acceleration mechanism in the wind ofprotostars, late-type stars, early-type stars and in the solar wind.
M. J. Vasconcelos, V. Jatenco Pereira, R. Opher   +2 more
openaire   +1 more source

The Disks and Accretion Behavior of Young Stellar Objects

, 2011
Zirkumstellare Scheiben spielen eine entscheidende Rolle im Prozess der Sternentstehung und gelten darüberhinaus als die Geburtsstätten neuer Planetensysteme. Notwendig zum Verständnis der Planetenund Sternentstehung ist daher das Wissen um die Entwicklung zirkumstellarer Akkretionsscheiben in Abhängigkeit von der stellaren Umgebung.
openaire   +2 more sources

Dual‐Ligand Metal‐Organic Frameworks via In Situ Amidoxime Engineering for Selective Ion Separation

Advanced Functional Materials, EarlyView.
Inspired by microbial ion‐trapping mechanisms, a mild and universal strategy is developed to construct highly porous amidoxime‐functionalized MOFs. DFT calculations and molecular force measurements reveal that the dual‐ligand amidoxime configuration significantly strengthens Ga(III) affinity.
Zhifang Lv, Guixia Fan, Yun Bai, Guosheng Li, Peng Li, Wenjihao Hu, Yijun Cao, Wenshuai Yang, Daoguang Teng, Hongbo Zeng   +9 more
wiley   +1 more source

Magnetically Driven Warping and Precession of Accretion Disks: Implications for Exotic Stellar Variabilities [PDF]

International Astronomical Union Colloquium, 2002
AbstractThe inner region of the accretion disk around a magnetized star is subjected to magnetic torques that induce warping and precession of the disk. These torques arise from interactions between the stellar field and the induced electric currents in the disk.
openaire   +2 more sources

Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance

Advanced Functional Materials, EarlyView.
A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer, Emilia Fulajtar, Seema Agarwal   +2 more
wiley   +1 more source

Galactic disks and their evolution

, 2010
We consider the key problems related to measuring the mass of stellar disks and dark halos in galaxies and to explaining the observed properties of disks formed in massive dark halos.Comment: 6 pages, 2 ...
A.V. Zasov, Jørgensen, Makarov, Naim, O.K. Sil'chenko, Засов, Засов, Караченцев   +7 more
core   +1 more source

Dual‐Layer Living Hydrogel Enables On‐Demand Delivery of Phages and Probiotics for Synergistic Wound Infection Therapy

Advanced Functional Materials, EarlyView.
A dual‐layer living hydrogel, ProΦGel, integrates bacteriophages and probiotics for synergistic wound infection therapy. The outer gelatin‐based matrix releases phages on demand in response to P. aeruginosa infections, while inner alginate beads sustain probiotic delivery.
Siyuan Tao, Darine D'Adam, Anna Hu, Sixuan Zhang, Josua Roduner, Katharina Maniura‐Weber, Qun Ren   +6 more
wiley   +1 more source

Coordinated Space- and Ground-based Monitoring of Accretion Bursts in a Protoplanetary Disk: Establishing Mid-infrared Hydrogen Lines as Accretion Diagnostics for JWST/MIRI

The Astrophysical Journal
In this paper, we establish and calibrate mid-infrared (MIR) hydrogen recombination lines observed with the James Webb Space Telescope as accretion tracers for pre-main-sequence stars that accrete from circumstellar disks.
Benjamin M. Tofflemire, Carlo F. Manara, Andrea Banzatti, Klaus M. Pontoppidan, Joan Najita, Brunella Nisini, Emma T. Whelan, Justyn Campbell-White, Hala Alqubelat, Adam L. Kraus, Christian Rab, Adrien Houge, Sebastiaan Krijt, James Muzerolle, Eleonora Fiorellino, Myriam Benisty, Lukasz Tychoniec, Colette Salyk, Guillaume Bourdarot, Jacob Hyden   +19 more
doaj   +1 more source

The star-formation history of the Milky Way Galaxy

, 2009
The star-formation histories of the main stellar components of the Milky Way constrain critical aspects of galaxy formation and evolution. I discuss recent determinations of such histories, together with their interpretation in terms of theories of disk ...
Bensby, Bensby, Bensby, Cignoni, Famaey, François, Maiolino, Nordström, Rocha-Pinto, Rosemary F. G. Wyse, Wyse, Wyse   +11 more
core   +1 more source

Overcoming Debye Length Limitations in Electrolyte‐Gated Transistor Biosensors Using Nanoscale‐Grooved Oxide Semiconductors Fabricated by Thermal Nanoimprint Lithography

Advanced Functional Materials, EarlyView.
Nanoscale‐grooved indium gallium oxide (IGO) semiconductors, patterned via thermal nanoimprint lithography (NIL) using CD/DVD templates, are integrated into electrolyte‐gated transistor biosensors to overcome Debye length limitations. Precisely engineered concave–convex nanostructures modulate local electrostatic potentials, extend the effective Debye ...
Jong Yu Song, Gyeongmin Lee, Dong Hyung Kim, Woo Lee, Eun‐Ah You, Young‐Geun Ha   +5 more
wiley   +1 more source