Results 81 to 90 of about 882,775 (293)

Design and advancement status of the Beam Expander Testing X-ray facility (BEaTriX)

, 2016
The BEaTriX (Beam Expander Testing X-ray facility) project is an X-ray apparatus under construction at INAF/OAB to generate a broad (200 x 60 mm2), uniform and low-divergent X-ray beam within a small lab (6 x 15 m2).
Arcangeli, L., Bianucci, G., Ferrari, C., Ghigo, M., Pareschi, G., Pelliciari, C., Rossi, M., Salmaso, B., Spiga, D., Tagliaferri, G., Valsecchi, G., Vecchi, G., Zappettini, A.   +12 more
core   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Fabrication and Characterization of Beam Quality Phantom for External Beam Radiotherapy [PDF]

Iranian Journal of Medical Physics
Introduction: Radiation dose measurement plays a major role in Radiation Dosimetry. Effective dose delivery to the patient is ensured with the recommendation of some protocol called Quality assurance (QA). It is necessary to confirm that the beam that is
Boopathi M, D Khanna, Pitchaikannu Venkatraman, Joshua J, Sureka C S, Varshini Raju   +5 more
doaj   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Adjustment of Coatings Morphology and Particle Distribution of Layered Silicates by Freeze‐Drying for Improved Gas Barriers

Advanced Engineering Materials, EarlyView.
Freeze‐drying of layered silicate is the key to get coatings with superior gas barrier. Freeze‐drying of layered silicates modified with dodecylamine (DDA) is a highly effective technique for the preparation of barrier pigments that significantly mitigate the permeation of oxygen, water vapor, and hydrogen through polymer films containing these ...
Joshua Lommes, Moritz Bätcher, Andrea Deißenberger, Volkmar Stenzel, Andreas Hartwig   +4 more
wiley   +1 more source

A Preliminary Study on the Principle of Linear Effect Scaling Laws for Laser Atmospheric Transmission

Photonics
Numerical simulations were performed to rapidly predict and evaluate laser beam expansion caused by linear atmospheric transmission effects, such as turbulence and jitter, thereby enhancing the accuracy of the scaling law.
Xin Ye, Chengyu Fan, Wenyue Zhu, Pengfei Zhang, Xianmei Qian, Jinghui Zhang, Tao Jiang   +6 more
doaj   +1 more source

Process‐Informed Analysis of As‐Built Metal Additive Surface Features

Advanced Engineering Materials, EarlyView.
This article introduces a novel method for feature‐based surface texture characterisation directly incorporating manufacturing variables into the feature extraction workflow. This marks a major step towards identifying process‐specific surface properties and their influence on part function and hence a holistic understanding of process–structure ...
Theresa Buchenau, Adam Thompson, Hauke Brüning, Marc Amkreutz, Bernd Mayer, Samanta Piano   +5 more
wiley   +1 more source

Toward a plasma-based accelerator at high beam energy with high beam charge and high beam quality

Physical Review Accelerators and Beams, 2020
From plasma-wakefield acceleration as a physics experiment toward a plasma-based accelerator as a user facility, the beam physics issues remaining to be solved are still numerous.
P. A. P. Nghiem, R. Assmann, A. Beck, A. Chancé, E. Chiadroni, B. Cros, M. Ferrario, A. Ferran Pousa, A. Giribono, L. A. Gizzi, B. Hidding, P. Lee, X. Li, A. Marocchino, A. Martinez de la Ossa, F. Massimo, G. Maynard, A. Mosnier, S. Romeo, A. R. Rossi, T. Silva, E. Svystun, P. Tomassini, C. Vaccarezza, J. Vieira, J. Zhu   +25 more
doaj   +1 more source

Enabling Digital Continuity in Virtual Manufacturing for Eco‐Efficiency Assessment of Lightweight Structures by Means of a Domain‐Specific Structural Mechanics Language: Requirements, Idea and Proof of Concept

Advanced Engineering Materials, EarlyView.
This article presents a solver‐agnostic domain‐specific language (DSL) for computational structural mechanics that strengthens interoperability in virtual product development. Using a hierarchical data model, the DSL enables seamless exchange between diverse simulation tools and numerical methods.
Martin Rädel, Andreas Schuster, Felix Schoenitz, Jean Lefèvre   +3 more
wiley   +1 more source

Measurement of M2-Curve for Asymmetric Beams by Self-Referencing Interferometer Wavefront Sensor

Sensors, 2016
For asymmetric laser beams, the values of beam quality factor M x 2 and M y 2 are inconsistent if one selects a different coordinate system or measures beam quality with different experimental conditionals, even when analyzing the same ...
Yongzhao Du
doaj   +1 more source