Results 71 to 80 of about 357,990 (292)

Salt crystallization dynamics in building rocks: a 4D study using laboratory X-ray micro-CT [PDF]

, 2015
We employ laboratory X-ray micro-computed tomography (μCT) during climate-controlled salt weathering experiments to acquire data on the kinetics of drying and salt precipitation and the distribution of crystals within the pore space of Mšené sandstone ...
Boone, Marijn, Boone, Matthieu, Cnudde, Veerle, De Kock, Tim, De Miranda, Stefano, Derluyn, Hannelore, Desarnaud, Julie, Molari, Lisa, Peetermans, Steven, Shahidzadeh, Noushine   +9 more
core  

Quality Enhancement of Laser Powder‐Bed Fusion Parts by Acoustically Assisted Additive Manufacturing by Laser Powder‐Bed Fusion and its Application to Lattice Structures

Advanced Engineering Materials, EarlyView.
Additive manufacturing technologies like laser powder‐bed fusion offer great design freedom and individualization of products down to a batch size of one. However, parts fabricated with this technology suffer from poor quality. Acoustic assistance during the build process can minimize these drawbacks.
Oliver Maurer, Dirk Bähre
wiley   +1 more source

Applications of X-Ray Computed Tomography in Particulate Systems

KONA Powder and Particle Journal, 2014
X-ray computed tomography (CT) is an ideal technique for investigating the internal structure of multiphase materials in a noninvasive and nondestructive manner.
C. L. Lin, J. D. Miller, A. Cortes
doaj   +1 more source

Comparison of Online 6 Degree-of-Freedom Image Registration of Varian TrueBeam Cone-Beam CT and BrainLab ExacTrac X-Ray for Intracranial Radiosurgery. [PDF]

, 2017
PURPOSE: The study was aimed to compare online 6 degree-of-freedom image registrations of TrueBeam cone-beam computed tomography and BrainLab ExacTrac X-ray imaging systems for intracranial radiosurgery.
Andrews, David W., Dicker, Adam, MD, PhD, Li, Jun, Lu, Bo, Lui, Haisong, Shi, Wenyin, Werner-Wasik, Maria, Yu, Yan   +7 more
core   +1 more source

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

Advanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach, Oliver Schenk, Valérian Iss, Ali Rajaei, Jiali Zhang, Felix Weber, Christoph Broeckmann   +6 more
wiley   +1 more source

Computed tomography-osteoabsorptiometry for assessing the density distribution of subchondral bone as a measure of long-term mechanical adaptation in individual joints [PDF]

, 1989
To estimate subchondral mineralisation patterns which represent the long-term loading history of individual joints, a method has been developed employing computed tomography (CT) which permits repeated examination of living joints.
A Schleicher, B Kummer, B Kummer, Berthold Wimmer, E Amtmann, Erik Schulte, F Pauwels, GU Rao, H Konermann, H Molzberger, HE Meema, HK Genant, J Adams, J Noble, J-J Knief, K Kouris, Magdalena M�ller-Gerbl, N Möllers, Norbert Hodapp, P Maquet, P Steiger, Reinhard Putz, SB Murphy, WA Kalender   +23 more
core   +1 more source

Wafer Bonding Technologies for Microelectromechanical Systems and 3D ICs: Advances, Challenges, and Trends

Advanced Engineering Materials, EarlyView.
This review explores wafer bonding technologies, covering wafer preparation, activation methods, and bonding mechanisms. It compares direct and indirect bonding, highlights recent advancements and future trends, and examines applications in 3D integration and packaging.
Abdul Ahad Khan, Tuan‐Khoa Nguyen, Quang Thang Trinh, Nam‐Trung Nguyen, Dzung Viet Dao, Yong Zhu   +5 more
wiley   +1 more source

X-ray-Computed Tomography Contrast Agents [PDF]

Chemical Reviews, 2012
X-ray computed tomography (CT) is a well-established tissue imaging technique employed in a variety of research and clinical settings.1 Specifically, CT is a non-invasive clinical diagnostic tool that allows for 3D visual reconstruction and segmentation of tissues of interest. High resolution CT systems can be used to perform non-destructive 3D imaging
Mark W. Grinstaff, Hrvoje Lusic
openaire   +3 more sources

Residual Stress States in Microstructurally Graded PBF–LB/M Austenitic Steel Components

Advanced Engineering Materials, EarlyView.
This study examines microstructurally graded 316L rectangular tube profiles fabricated via PBF–LB/M using a dual‐laser system. A 1 kW top‐hat and a 400 W Gaussian laser create distinct grain sizes and crystallographic texture. Mechanical properties are linked to microstructural evolution driven by processing conditions.
Nico Möller, Florian Loebich, Thomas Wegener, Julia Richter, Jens Gibmeier, Thomas Niendorf   +5 more
wiley   +1 more source

X-ray computed tomography of polymer composites

Composites Science and Technology, 2018
Abstract The use of X-ray computed tomography (CT), exploiting both synchrotron and laboratory sources, has grown significantly over the last decade, driven primarily by improvements in spatial resolution, reduction in acquisition time and the increasing availability of laboratory X-ray CT systems.
Garcea, S.C., Wang, Y., Withers, P.J.
openaire   +2 more sources