Results 91 to 100 of about 327,173 (294)

Trans‐Conductive Melt Pool Scaling and its Implications for Parameter Transfer in Laser Powder Bed Fusion for Metals with High Thermal Diffusivity

Advanced Engineering Materials, EarlyView.
Developing process parameters for the laser‐based Powder Bed Fusion of metals can be a tedious task. Based on melt pool depth, the process parameters are transferable to different laser scan speeds. For this, understanding the melt pool scaling behavior is essential, particularly for materials with high thermal diffusivity, as a change in scaling ...
Markus Döring, Matthias Gehring, Michael Schmidt   +2 more
wiley   +1 more source

Assessing the Powder Bed Fusion–Laser Beam Potential of Glass‐Forming Alloys Using Single and Multitrack Laser Glazing Experiments

Advanced Engineering Materials, EarlyView.
Characterizations of the expanse of processes parameter combinations that can be used to minimize cracking and porosity while optimizing crystallization and hardness are used to assess laser processing of four glass‐forming alloys. The set of viable alloys for laser additive manufacturing is not the same as for suction casting; some alloys are common ...
Soumya Mohan, Harrison Holberton, Aaron P. Stebner, Douglas C. Hofmann   +3 more
wiley   +1 more source

The Viability of the Refractory High‐Entropy Alloy AlMo0.5NbTa0.5TiZr for High‐Temperature Structural Applications

Advanced Engineering Materials, EarlyView.
Refractory high‐entropy alloys have attracted substantial attention for future ultrahigh‐temperature structural applications. Here the progression of key phase transformations in AlMo0.5NbTa0.5TiZr is established and correlated to the mechanical performance, highlighting the importance of the B2 phase.
George J. Wise, Nicole L. Church, Hon Tong Pang, Robert P. Thompson, Howard J. Stone, Nicholas G. Jones   +5 more
wiley   +1 more source

High Repetition Rate Laser‐Induced Printing of Bioink with Picosecond Pulse Durations: Optimization of the Printing Process

Advanced Engineering Materials, EarlyView.
This study explores the use of laser‐induced forward transfer in the picosecond regime to create in vitro biomodels. Focusing on hydrodynamics and rheology, it investigates jet dynamics through time‐resolved imaging, optimizing laser fluence, biological ink viscosity, and printing distance to precisely control the volume and location of bioink ...
Lucas Duvert, Adrien Casanova, Ahmed Al‐Kattan, Stefano Testa, Frédérique Magdinier, Anne‐Patricia Alloncle   +5 more
wiley   +1 more source

X-ray Emission from Nitrogen-Type Wolf-Rayet Stars

, 2009
We summarize new X-ray detections of four nitrogen-type Wolf-Rayet (WR) stars obtained in a limited survey aimed at establishing the X-ray properties of WN stars across their full range of spectral subtypes.
Arnal, Babel, Baum, Berghöfer, Borkowski, Cappa, Cassinelli, Chu, Crowther, Dyson, Feldmeier, Gregory, Gruendl, Gruendl, Howarth, Ignace, Ignace, Kimberly R. Sokal, Lipunov, Lépine, Maeda, Manuel Güdel, Marston, Marston, Mason, Miller, Morel, Owocki, Owocki, Pollock, Press, Prilutskii, Schmutz, Schmutz, Schulz, Skinner, Skinner, Skinner, Skinner, Skinner, Smith, St.-Louis, Stephen L. Skinner, Svetozar A. Zhekov, ud-Doula, van den Heuvel, van der Hucht, van der Hucht, Waldron, Werner Schmutz, Willis, Zhekov   +51 more
core   +1 more source

Southern Binaries with the Zorro Speckle Camera @ Gemini South

The Astronomical Journal
We present measurements in the context of a survey of southern hemisphere binary and multiple stellar systems observed with the Zorro Speckle dual diffraction-limited optical imaging camera on the 8.1 m Gemini South telescope carried out between 2019 and
Rene A. Mendez, Andrei Tokovinin, Edgardo Costa, Maximiliano Dirk   +3 more
doaj   +1 more source

DDO spectroscopic survey of MOST variable stars

, 2008
A spectroscopic support survey of 103 objects observed by the MOST satellite is presented; 96 are variable stars with 83 of them being new MOST variable-star detections or stars with variability types verified and/or modified on the basis of the MOST ...
Abt, Bogumil Pilecki, Daniel, Edvardsson, Hearnshaw, Lemke, Mason, Mathieu, Matthews, Nordstrom, Pribulla, Pribulla, Pych, Rainer Kuschnig, Rucinski, Rucinski, Rucinski, Slavek M. Rucinski, Soubiran, Theodor Pribulla, Uesugi, van Hamme, Waldemar Ogłoza, Walker   +23 more
core   +1 more source

Recent Progress on 2D‐Material‐Based Smart Textiles: Materials, Methods, and Multifunctionality

Advanced Engineering Materials, EarlyView.
Advancements in 2D‐material‐integrated smart textiles are reviewed, with a focus on materials, fabrication methods, and multifunctional applications, including energy harvesting, monitoring, EMI shielding, energy storage, and thermal management. The discussion addresses key challenges and provides insights into the future development of next‐generation
Yong Choi, Jiheon Kim, Jaemin Lee, Xinqi Chen, Byungseok Seo, Wonjoon Choi   +5 more
wiley   +1 more source

Dynamical investigations of the multiple stars

Open Astronomy, 2017
Two multiple stars - the quadruple star - Bootis (ADS 9173) and the triple star T Taury were investigated. The visual double star - Bootiswas studied on the basis of the Pulkovo 26-inch refractor observations 1982-2013.
Kiyaeva Olga V., Zhuchkov Roman Ya.
doaj   +1 more source

Some Aspects of Visual Binary Star Orbit Determination [PDF]

International Astronomical Union Colloquium, 1983
The problem under consideration is that of determining the seven elements (the vector ) characterizing the relative three-dimensional motion of the components of a binary star, using observations of the two-dimensional projection on the sky of the relative positions of those components as a function of time.
openaire   +2 more sources