Results 41 to 50 of about 5,686 (311)

The Additive-Subtractive Process Chain - a Review

Journal of Machine Engineering, 2023
In recent years, metal additive manufacturing developed intensively and became a relevant technology in industrial production of highly complex and function integrated parts.
Hans-Christian Moehring, Clemens Maucher, Dina Becker, Thomas Stehle, Rocco Eisseler   +4 more
doaj   +1 more source

Propagation of Geometric Tolerance Zones in 3D [PDF]

, 2007
This paper considers error propagation in three dimensional geometric constructions using a geometric approach. First, we present definitions and constructions of tolerance zones for various fundamental elements in Euclidean space. Then, we study in detail the propagation of errors during several geometric computations, including the the distance ...
Zhang, Song-Hai, Zhu, Qi-Hui, Martin, Ralph Robert   +2 more
openaire   +2 more sources

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

Geometric Benchmarking of Metal Material Extrusion Technology: A Preliminary Study

Applied Sciences
Metal additive manufacturing technologies such as powder bed fusion (PBF) and direct energy deposition (DED) are experiencing fast development, due to the growing awareness of industries.
Gabriele Locatelli, Mariangela Quarto, Gianluca D’Urso, Claudio Giardini   +3 more
doaj   +1 more source

Particle Swarm Optimization for Advanced Tolerance Control in Freeform Geometries: Case Study on Aeronautical Turbine Blades [PDF]

E3S Web of Conferences
This research presents an innovative methodology for optimizing geometric tolerances on freeform surfaces, with a particular focus on turbine blades, through the adoption of a global tolerance framework.
Mohamed Oubrek, Abdelouahad Bellat, Abdelouahab Salih, Abdelilah Jalid   +3 more
doaj   +1 more source

MEASUREMENT ERROR WITH DIFFERENT COMPUTER VISION TECHNIQUES [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
The goal of this work is to offer a comparative of measurement error for different computer vision techniques for 3D reconstruction and allow a metrological discrimination based on our evaluation results.
O. Icasio-Hernández, O. Icasio-Hernández, Y. I. Curiel-Razo, C. C. Almaraz-Cabral, S. R. Rojas-Ramirez, J. J. González-Barbosa   +5 more
doaj   +1 more source

Feasibility and Tolerability of Performing Portable MRI for Neurological Disorders in an Outpatient Neurology Clinic: A Prospective Cohort

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Accessing brain magnetic resonance imaging (MRI) can be challenging, especially for underserved patients, which may lead to disparities in neurological diagnosis. Method This mixed‐methods study enrolled adults with one of four neurological disorders: mild cognitive impairment or dementia of the Alzheimer type, multiple sclerosis ...
Maya L. Mastick, Nomin Enkhtsetseg, Joseph Sadok, Matheus Mochetti, Annabel Sorby Adams, Jennifer Guo, Cristina Trapaga Hacker, Isabella Gomez Hjerthen, Seungwon Lee, Siddharth Satish, Andrew S. Ham, Justin Hill, Denis Balaban, Kevin Kyle, Rebecca L. Gillani, Marcelo Matiello, Aleksandar Videnovic, Eric C. Klawiter, W. Taylor Kimberly, Farrah J. Mateen   +19 more
wiley   +1 more source

Sarilumab in Polyarticular‐Course Juvenile Idiopathic Arthritis: Dose‐Finding and One‐Year Analysis of a Phase 2b, Open‐Label, Multicenter Study

Arthritis Care &Research, Accepted Article.
Objective This study assessed sarilumab in treating patients with polyarticular‐course juvenile idiopathic arthritis (pcJIA). Methods This phase 2b, open‐label study (NCT02776735) consisted of three sequential parts (each with a core‐treatment and extension‐phase). During part 1, three doses were assessed in two weight groups (Group A/B: ≥30–60 kg/≥10–<
Fabrizio De Benedetti, Inmaculada C. Penadés, Irina Nikishina, Ivan Foeldvari, Alberto J. Spindler, Anna Kozlova, Nadina Rubio‐Pérez, Pierre Quartier, Zbigniew Żuber, Raul Barria, Daniel Clemente, Gabriel V. Cornejo, Katherine Marzan, Nancy Liu, Christine Xu, Stephen DiMartino, Angeliki Giannelou, Fei Cao‐Ghoul, Bolanle Akinlade, Lydie Baret‐Cormel   +19 more
wiley   +1 more source

Vertex Fault-Tolerant Geometric Spanners for Weighted Points

International Journal of Computational Geometry & Applications, 2022
Given a set [Formula: see text] of [Formula: see text] points, a weight function [Formula: see text] to associate a non-negative weight to each point in [Formula: see text], a positive integer [Formula: see text], and a real number [Formula: see text], we present algorithms for computing a spanner network [Formula: see text] for the metric space ...
Sukanya Bhattacharjee, R. Inkulu
openaire   +3 more sources

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

Advanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian, Frédéric Demoly, Mohammad Lakhi, Bernard Rolfe, Mahdi Bodaghi   +4 more
wiley   +1 more source