Results 111 to 120 of about 75,493 (303)

Investigation on Laser Scanners [PDF]

, 2004
The study and purchase of a three-dimensional laser scanner for a number of diverse metrology tasks at SLAC will be covered. Specifications including range, accuracy, scan density, resolution, field of view and more are discussed and the results of field tests and demonstrations by four potential vendors is covered.
openaire   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Laser Scanner 3D Applicazioni, metodologie e potenzialità del rilevamento con laser scanner terrestre

GEOmedia, 2007
Con un po’ di ritardo riportiamo il resoconto della giornata che si è svolta lo scorso 28 maggio presso l’Università degli Studi di Brescia dedicata al laser scanner terrestre.
Giorgio Vassena
doaj   +2 more sources

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Nuove applicazioni del laser scanner nel rilievo dell'architettura

, 2008
La tecnologia del laser scanning consente di acquisire digitalmente oggetti tridimensionali di varie dimensioni sotto forma di nuvole di punti. La descrizione geometrica digitale dell'oggetto è discreta, quanto maggiore è la risoluzione impostata per l'
CAMPI, MASSIMILIANO, DI LUGGO, ANTONELLA
core  

Integração de dados do laser scanner com a banda pan-cromática do sensor QuickBird II para a identificação de edificações através das redes neurais numa abordagem orientação a regiões = Integration of the laser scanner with image panchromatic of QuickBird II in identification of building using neural network and region orientation

Acta Scientiarum: Technology, 2005
A imagens produzidas pelo sensor QuickBird II e pelos dados laser scanner são produtos caros para comercialização, porém têm mostrado seu valor técnico-científico no processamento digital de imagens.
Mosar Faria Botelho, Jorge Antonio Silva Centeno   +1 more
doaj  

Remote sensing techniques applied to geomorphological mapping of rocky coast: the case study of Gallinara Island (Western Liguria, Italy)

European Journal of Remote Sensing, 2019
Geomorphological survey and mapping of the emerged and submerged coastal areas, particularly addressed to evaluate sea cliff instability within the assessment of coastal hazard and risk mitigation measures, require high resolution and georeferenced ...
Bianca Federici, Nicola Corradi, Ilaria Ferrando, Domenico Sguerso, Antonio Lucarelli, Sara Guida, Pierluigi Brandolini   +6 more
doaj   +1 more source

A Knowledge‐Based Approach for Understanding and Managing Additive Manufacturing Data

Advanced Engineering Materials, EarlyView.
Additive manufacturing processes generate a large amount of data. Effectively managing, understanding, and retrieving information from this data remains a major challenge. Therefore, we propose an ontology‐based approach to integrate heterogeneous data, enable semantic queries, and support decision‐making.
Mina Abd Nikooie Pour, Prithwish Tarafder, Anton Wiberg, Huanyu Li, Johan Moverare, Patrick Lambrix   +5 more
wiley   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source