Results 11 to 20 of about 41,780 (205)
On the generation of chatter marks in peripheral milling: A spectral interpretation
International Journal of Machine Tools and Manufacture, 2018 Abstract Chatter vibration induces a characteristic pattern on the milled surface, known as chatter marks, causing a poor surface quality. While several works deal with the prediction of the machined surface in stable condition, surface under chatter vibration has not been extensively studied: it is not clear how vibrations at high chatter frequency ...
Grossi, N. +4 more
openaire +4 more sources
Multiparty talk in the novel: the distribution of tea and talk in a scene from Evelyn Waugh's Black Mischief [PDF]
, 2002 This article argues that studies of fictional dialogue have hitherto neglected the specific dynamics of multiparty talk. I will contend that this neglect contributes to the perpetuation of an "ideal" of conversation that allows no space for either the ...
Thomas, Bronwen
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"The Speech of Dasein: Heidegger and Quotidian Discourse" [PDF]
, 2017 In § 35 of Sein und Zeit Heidegger’s denunciation of Gerede, idle talk, is confident and scathing. It sounds so sinister and threatening. What could Heidegger be talking about? One could cite numerous fictional characters (e.g., Pecksniff, Mrs.
Gelley, Alexander
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Echo, not quotation: what conversation analysis reveals about classroom responses to heard poetry [PDF]
, 2012 This article applies conversation analysis to classroom talk-in-interaction where pupils respond to poetry they have heard. The phenomenon of repeating in discussion details from the poem, including patterns of delivery, is considered and named echo to ...
Gordon, John
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A novel haptic model and environment for maxillofacial surgical operation planning and manipulation [PDF]
, 2012 This paper presents a practical method and a new haptic model to support manipulations of bones and their segments during the planning of a surgical operation in a virtual environment using a haptic interface. To perform an effective dental surgery it is
Arnez, Victor +7 more
core +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 +2 more
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A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller
International Journal of Adaptive Control and Signal Processing, EarlyView.Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg +5 more
wiley +1 more source
Hard‐Magnetic Soft Millirobots in Underactuated Systems
Advanced Robotics Research, EarlyView.This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang +4 more
wiley +1 more source
Suppression of chatter marks in surface grinding by using dynamic damper.
Journal of the Japan Society for Precision Engineering, 1987 In order to suppress the chatter marks due to the tuning-fork mode vibration of surfacegrinding machines, which is caused by intermittent contact of the wheel and the workpieceduring grinding operation, several types of dynamic dampers are developed and their effectiveness is investigated experimentally. It was found that in all cases the amplitudes of
Yoshikuni NAKANO +4 more
openaire +2 more sources
Advanced Science, EarlyView.This study performs pan‐viromic profiling of 14,529 samples from 5,710 domestic herbivores across five Chinese provinces, establishing the DhCN‐Virome (1,085,360 viral metagenomes). It reveals species/sample‐specific viromic signatures and cross‐species transmission dynamics, aiding unified disease control.
Yue Sun +19 more
wiley +1 more source