Results 111 to 120 of about 199,190 (345)

Differential Emission Measure Determination of Collisionally Ionized Plasma: II. Application to Hot Stars

, 2005
In a previous paper we have described a technique to derive constraints on the differential emission measure (DEM) distribution, a measure of the temperature distribution, of collisionally ionized hot plasmas from their X-ray emission line spectra.
Norbert S. Schulz, Patrick S. Wojdowski, Perryman M. A. C., Schulz N. S., Yamauchi S.   +4 more
core   +1 more source

Is Young's Modulus a Critical Coating Property Determining Fouling‐Release Performance of Marine Coatings?

Advanced Engineering Materials, EarlyView.
The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal, Andreas Brinkmann, Andreas Hartwig   +2 more
wiley   +1 more source

Detection of Low-Level Activities in Solar-Analog Stars from Emission Strengths of the Ca II 3934 Line [PDF]

, 2012
Yoichi Takeda, Akito Tajitsu, Satoshi Honda, Satoshi Kawanomoto, Hiroyasu Ando, Takashi Sakurai   +5 more
openalex   +1 more source

Using the Coolest Ae Stars to Constrain Circumstellar Disk Viscosity

The Astrophysical Journal
Classical Ae (CAe) stars are main-sequence, A-type stars with H α emission but no signature of dust. They are thought to be the cool extension of the classical Be stars to lower masses.
R. Anusha, T. A. A. Sigut
doaj   +1 more source

Going Forward to Unveil the Nature of γ Cas Analogs

Galaxies
The star γ Cas and its analogs are a subset of Be stars that display particularly hard and bright thermal X-ray emission, which has no equivalent among other massive stars.
Yaël Nazé
doaj   +1 more source

Innovating Aircraft Repair Processes: The Role of Digitalization in Sustainability

Advanced Engineering Materials, EarlyView.
This research explores how digitalization—by storing detailed non‐destructive testing data in structured DICONDE databases and creating a standard data model of the component—innovates aviation maintenance and repair processes. Coupled with a developed state‐based simulation model, it enables data‐driven, sustainable repair strategies that reduce waste,
Johanna Aigner, Geo Jacob, Florian Raddatz, Gerko Wende   +3 more
wiley   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source

Predicting the observability of population III stars with ELT-HARMONI via the helium 1640 Å emission line [PDF]

, 2021
Kearn Grisdale, Niranjan Thatte, Julien Devriendt, M. Pereira-Santaella, Adrianne Slyz, Taysun Kimm, Yohan Dubois, Sukyoung K. Yi   +7 more
openalex   +1 more source

Hα Emission among Evolved FGKM Stars: A Compendium from the Literature

The Astronomical Journal
Emission in the wings of the H α line among late-type giant stars occurs as a consequence of conditions in their chromospheres. Data from the literature have been used to document the incidence of H α emission among Population I giant stars as a function
Graeme H. Smith
doaj   +1 more source

A Census of B[e] Supergiants

Galaxies, 2019
Stellar evolution theory is most uncertain for massive stars. For reliable predictions of the evolution of massive stars and their final fate, solid constraints on the physical parameters, and their changes along the evolution and in different ...
Michaela Kraus
doaj   +1 more source