Results 121 to 130 of about 112,697 (340)

On Stellar Rotation: I. The Rotation of Upper Main-Sequence Stars [PDF]

, 1964
I. W. Roxburgh
openalex   +1 more source

Evaluating Gyrochronology on the Zero-Age-Main-Sequence: Rotation Periods in the Southern Open Cluster Blanco 1 from the KELT-South Survey

, 2013
We report periods for 33 members of Blanco 1 as measured from KELT-South light curves, the first reported rotation periods for this benchmark zero-age-main-sequence open cluster.
Cargile, P. A., James, D. J., Kuhn, R. B., Pepper, J., Siverd, R., Stassun, K. G.   +5 more
core   +1 more source

Simulation of Inhomogeneous Refractive Index Fields Induced by Hot Tailored Forming Components

Advanced Engineering Materials, EarlyView.
This article presents a simulation model for simulating inhomogeneous refractive index fields (IRIF) in hot‐forged components, accounting for thermal influences and complex geometries. Through this simulation, a priori knowledge about the propagation of the IRIF can be obtained, allowing for the positioning of the component or an optical measurement ...
Pascal Kern, Lennart Hinz, Markus Kästner, Eduard Reithmeier   +3 more
wiley   +1 more source

Stellar X-Ray Activity and Habitability Revealed by the ROSAT Sky Survey

The Astrophysical Journal Supplement Series
Using the homogeneous X-ray catalog from ROSAT observations, we conducted a comprehensive investigation into stellar X-ray activity–rotation relations for both single and binary stars.
Henggeng Han, Song Wang, Chuanjie Zheng, Xue Li, Kai Xiao, Jifeng Liu   +5 more
doaj   +1 more source

Internal rotation of red giants by asteroseismology

EPJ Web of Conferences, 2013
We present an asteroseismic approach to study the dynamics of the stellar interior in red giant stars by asteroseismic inversion of the splittings induced by the stellar rotation on the oscillation frequencies.
Christensen-Dalsgaard J., Mosser B., Hekker S., García R.A., Elsworth Y., Davies G., Beck P.G., Stello D., Ventura R., Di Mauro M.P., Cardini D., Bloemen S., Catanzaro G., De Smedt K., Tkachenko A.   +14 more
doaj   +1 more source

On Stellar Rotation: II. The Rotation of Lower Main Sequence Stars [PDF]

, 1964
I. W. Roxburgh
openalex   +1 more source

A Novel Approach to Produce Metal–Metal Composites by Leveraging Immiscibility: Laser Powder Bed Fusion of Nanosilver‐Dispersed Titanium

Advanced Engineering Materials, Volume 27, Issue 14, July 2025.
Incorporating nanosized silver into titanium for antimicrobial materials exploits the metastable miscibility gap between silver and titanium. Silver nanoparticles are synthesized via pulsed laser ablation in liquid. Silver addition refines the microstructure, increases hardness by 30%, and reduces Staphylococcus capitis microbial adhesion by 70%, with ...
Hamed Shokri, Silja‐Katharina Rittinghaus, Janett Schmelzer, Jessica Bertrand, Bilal Gökce   +4 more
wiley   +1 more source

Wind Roche-lobe Overflow in Low-mass Binaries: Exploring the Origin of Rapidly Rotating Blue Lurkers

The Astrophysical Journal
Wind Roche-lobe overflow (WRLOF) is a mass-transfer mechanism proposed by Mohamed and Podsiadlowski for stellar binaries wherein the wind acceleration zone of the donor star exceeds its Roche-lobe radius, allowing stellar wind material to be transferred ...
Meng Sun, Sasha Levina, Seth Gossage, Vicky Kalogera, Emily M. Leiner, Aaron M. Geller, Zoheyr Doctor   +6 more
doaj   +1 more source

Maillard Type Reaction for Electroless Copper Plating onto Ceramic Nanoparticles

Advanced Engineering Materials, Volume 27, Issue 14, July 2025.
This work presents the manufacturing of copper‐plated ceramic nanoparticles in an environmentally friendly way. Supported by organic functionalizations with pectin an electroless plating step can be performed. Sustainable reagents like xylose, and several amino acids are used for the reduction process.
Lukas Mielewczyk, Julia Grothe, Stefan Kaskel, Heinrich von Lintel, Katja Eichmann, Katrin Jahns, Avinash Hariharan, Abdelrahman Elsayed, Ulrich Krupp   +8 more
wiley   +1 more source

Starspots: A Key to the Stellar Dynamo

Living Reviews in Solar Physics, 2005
Magnetic activity similar to that of the Sun is observed on a variety of cool stars with external convection envelopes. Stellar rotation coupled with convective motions generate strong magnetic fields in the stellar interior and produce a multitude of ...
Berdyugina Svetlana V.
doaj