Results 71 to 80 of about 1,458 (251)

Hybrid Edge–Cloud-Based Smart System for Chatter Suppression in Train Wheel Repair

Applied Sciences, 2019
The contact profile of a train wheel has a key role in its operation performance. Rolling smoothly and with reduced resistance results in an increase in the efficiency and safety of rail transport.
Ruben Merino, Iñigo Bediaga, Alexander Iglesias, Jokin Munoa   +3 more
doaj   +1 more source

Toward a Greener Future: How and When Blockchain and Digitization Drive Green Finance

Business Strategy and the Environment, EarlyView.
ABSTRACT The COVID‐19 pandemic has significantly affected small‐ and medium‐sized enterprises (SMEs) and poses challenges in acquiring financing. Growing green investments require transformative infrastructure and innovative green financing solutions. Blockchain technology is ideal for delivering green environmental information because it provides real‐
Sikandar Rahman, Bailing Liu, Murad Ali, Sheikh Adeel, Dana Bakry, Saleh Bajaba, Mohammad Asif Salam, Hengky Latan   +7 more
wiley   +1 more source

Experimental study of thin part vibration modes in machining [PDF]

, 2008
The machining of thin walls generally generates milling chatter, that damage surface roughness and manufacturing tools. Stability lobes which include natural frequencies are successful in case of tool chatter.
Arnaud, Lionel, Dessein, Gilles, Wehbe, Toufic   +2 more
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Ultrafast oscillations in the human brain and their functional significance

Epilepsia, EarlyView.
Abstract Objective The upper frequency limit of human brain activity remains unknown. Using ultrahigh sampling rate (≥20 kHz) intracranial microelectroencephalography, this study aimed to systematically explore and quantitatively characterize brain field oscillations beyond the established high‐frequency oscillation range (>2 kHz), and to determine ...
Milan Brázdil, Vojtěch Trávníček, Jonathan Curot, Martin Pail, Monika Służewska‐Niedźwiedź, Robert Roman, Filip Plešinger, Emmanuel Barbeau, Michal Kucewicz, Petr Klimeš, Jan Cimbálník, Pavel Jurák, William C. Stacey, Gregory A. Worrell   +13 more
wiley   +1 more source

Design Optimization of a Compact Double-Ended-Tuning-Fork-Based Resonant Accelerometer for Smart Spindle Applications

Micromachines, 2019
With the rapid developments of the Industrial Era 4.0, numerous sensors have been employed to facilitate and monitor the quality of machining processes.
Yu-Hsuan Chen, Wei-Chang Li, Xi-Wen Xiao, Chieh-Cheng Yang, Chien-Hao Liu   +4 more
doaj   +1 more source

When a Week Is Not A Week: How Temporal Boundaries Shift Regulatory Focus and Consumer Preference

Psychology &Marketing, EarlyView.
ABSTRACT Does consumer perception of a sales event change if it falls across a calendar boundary (e.g., next month) versus within the current month, holding objective time constant? We investigate this question in the context of Cyber Monday, the global shopping event occurring the Monday after the U.S. Thanksgiving holiday.
David DeFranza, Promothesh Chatterjee
wiley   +1 more source

A Novel Mathematical Model for Predicting Self-Excited Vibrations in Micromilling of Aluminium 7075

Metals
Micro milling of metallic materials presents unique dynamic challenges due to highly nonlinear cutting forces and the susceptibility to self-excited vibrations (chatter).
Cvijetin Mladjenovic, Dejan Marinković, Katarina Monkova, Miloš Knežev, Aleksandar Živković   +4 more
doaj   +1 more source

Swimming Upriver? Exploring the Sources of Freshwater and Marine Fish in Military Diet in Sixteenth‐ to Nineteenth‐Century Northeastern North America

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT Atlantic cod were caught in large numbers and shipped from fishing stations in North America to Europe and the Caribbean, and this has been frequently studied zooarchaeologically; however, the exchange of cod and other fish into interior North America has received less study.
Martin H. Welker, Suzanne Needs‐Howarth, Eréndira M. Quintana Morales   +2 more
wiley   +1 more source

Experimental and field evidence indicate that islet‐nesting tundra birds experience reduced nest predation and benefit indirectly from high snow goose densities

Oikos, EarlyView.
Landscape features can shape the occurrence and strength of predator–prey interactions by influencing predation risk and prey distribution. In the High Arctic, some bird species select nesting sites with physical features that impede access for their main terrestrial predator, the Arctic fox.
Marylou Beaudoin, Andréanne Beardsell, Éliane Duchesne, Madeleine‐Zoé Corbeil‐Robitaille, Pierre Legagneux, Dominique Berteaux, Joël Bêty   +6 more
wiley   +1 more source

Chatter indicator for linear time periodic systems [PDF]

, 2022
LAUREA MAGISTRALEIl chatter rigenerativo è uno dei principali fattori limitanti per efficienza e qualità nella fresatura. Si tratta di un fenomeno complesso che può emergere rapidamente a seconda dei parametri di taglio, della dinamica della macchina,
Bekki, Ozan
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