Results 51 to 60 of about 629,646 (340)

Identification of natural frequencies of machine tools during milling: comparison of the experimental modal analysis and the operational modal analysis

Production Engineering
Modal parameters (natural frequencies, mode shapes and modal damping) help to understand the dynamic behaviour of complex systems like machine tools. There are several approaches for finding the modal parameters. The Experimental Modal Analysis (EMA) has
Jan Berthold, M. Kolouch, J. Regel, Martin Dix   +3 more
semanticscholar   +1 more source

Operational Modal Analysis of a Helicopter UAV from Flight Tests [PDF]

, 2011
The Operational Modal Analysis (OMA) could be used for the identification of the dynamics of aerospace vehicles, in terms of natural frequencies, damping ratios and mode shapes, during flight tests, using only the output responses due to the aerodynamic ...
GRAPPASONNI C, AGNENI A., COPPOTELLI, Giuliano   +2 more
core  

Identification of changes in the dynamics of a reinforced concrete building through a machine learning approach for data normalization [PDF]

, 2022
In recent years there has been a growing number of Structural Health Monitoring (SHM) applications based on environmental vibration measurements and Operational Modal Analysis techniques.
Nicoletti V., Quarchioni S., Carbonari S., Arezzo D., Gara F.   +4 more
core  

Prevalence of 21 Physician‐Defined Severe Toxicities Following Childhood Acute Lymphoblastic Leukemia Treatment: Australian Retrospective Cohort Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Acute lymphoblastic leukemia (ALL) is the most common pediatric cancer, with an overall survival now surpassing 90% in developed countries. However, treatments are not without adverse effects. In this study, we apply the severe toxicity‐free survival (STFS) framework to determine the prevalence of 21 physician‐defined severe ...
Lane Collier, Brittany Grantham, Camilla Grud Nielsen, Louise Lundgren, Liv Andrés‐Jensen, Kjeld Schmiegelow, Chris Selman, Gareth Ball, Elyse Passmore, David A. Elliott, Rachel Conyers   +10 more
wiley   +1 more source

FE Model and Operational Modal Analysis of Lower Limbs

Applied Sciences, 2017
Human lower limbs are exposed to vibrations on a daily basis, during work, transport or sports. However, most of the FE (Finite Elements) and OMA (Operational Modal Analysis) studies focus either on the whole body or on the hand-arm system.
Aymeric Pionteck, Xavier Chiementin, Marcela Munera, Sébastien Murer, Delphine Chadefaux, Guillaume Rao   +5 more
doaj   +1 more source

Operational modal Analysis of the “Guglia Maggiore” of the “Duomo” in Milano [PDF]

, 2011
Every city has its own symbol, its very heart. In Milano this symbol, with its six centuries of history, is the Duomo. One of the most impressive buildings in Italy, this unique Gothic cathedral continues to awe citizens and travelers with its timeless ...
VANALI, MARCELLO, G. Busca, CAPPELLINI, ANNA MARIA CHIARA, A. Cappellini, CIGADA, ALFREDO, BUSCA, GIORGIO, A. Cigada   +6 more
core  

Guidelines for Pediatric Radiotherapy Simulation: A Report From the Children's Oncology Group Radiation Oncology Discipline

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei, Stephen Mihalcik, Sujith Baliga, Young Kwok, Dana Casey, Eric Ehler, Christiane Burton, John C. Breneman, Daphne A. Haas‐Kogan, Suzanne L. Wolden, Arnold C. Paulino, Nadia N. Laack, Natia Esiashvili, Sarah Milgrom, Christine Hill‐Kayser, Thomas J. Fitzgerald, John A. Kalapurakal, Chia‐Ho Hua   +17 more
wiley   +1 more source

Identification of the modal masses of an UAV structure in operational environment [PDF]

, 2015
In the framework of Operational Modal Analysis, several methods have been developed to estimate the modal parameters, that is natural frequencies, damping ratios, and mode shapes of a structure in its operative conditions.
Arras, M., Coppotelli, G., Cardinale, M. S.   +2 more
core  

The Role of “Adult‐Onset” Cancer Predisposition Genes in Pediatric Cancer: A Comprehensive Review

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Current literature estimates that 10% of pediatric cancers are caused by pathogenic or likely pathogenic (P/LP) germline variants in cancer predisposition genes (CPGs). Variants in CPGs thought to increase cancer risk exclusively during adulthood are referred to as “adult‐onset” CPGs (aoCPGs).
Maria Rozo, Miriam A. Bornhorst, Angela J. Waanders, Sara Zarnegar‐Lumley, Ashwin Lakshman Koppayi, Lucy A. Godley   +5 more
wiley   +1 more source

Research on Parameter Influence of Offshore Wind Turbines Based on Measured Data Analysis

Journal of Marine Science and Engineering
Offshore wind turbines are prone to structural damage over time due to environmental factors, which increases operational costs and the risk of accidents.
Renfei Kuang, Jinhai Zhao, Tuo Zhang, Chengyang Li   +3 more
doaj   +1 more source