Results 51 to 60 of about 9,348 (176)

MicroRNA‐Seq Analysis Reveals a Critical Role for miR‐222 in Bovine Intramuscular Adipogenesis via the DDIT4/mTORC1 Axis

Animal Research and One Health, EarlyView.
Schematic diagram illustrating how miR‐222 promotes bovine intramuscular adipogenesis by targeting DDIT4 to activate the mTORC1 signaling pathway. ABSTRACT Intramuscular fat (IMF) is a key determinant of beef quality, particularly with respect to tenderness, flavor, and juiciness.
Jianbing Tan, Liang Qiu, Zhenghai Zhou, Zhipeng Zhang, Nanfei Wang, Jiangang Hao, Linsen Zan, Wucai Yang   +7 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

The analysis of tool life and wear mechanisms in spindle speed variation machining [PDF]

, 2014
Regenerative chatter vibrations generally limit the achievable material removal rate in machining. The diffusion of spindle speed variation (SSV) as a chatter suppression strategy is mainly restricted to academy and research centers.
Albertelli, P, Monno, M., Mussi, V.
core   +1 more source

Adaptive mixing formation control of multiquadrotor unmanned aerial vehicle systems

Asian Journal of Control, EarlyView.
Abstract This paper presents a distributed adaptive mixing control (AMC) design for formation maintenance of systems of multiquadrotor UAVs (q‐UAVs) during commanded path‐tracking maneuvers. The proposed formation control scheme has a two‐level structure. The high level defines the desired trajectories for rigid and persistent formation acquisition and
Nasrettin Köksal, Barış Fidan, Ahmed Fahim Mostafa   +2 more
wiley   +1 more source

Self-Excited Vibrations Counteraction in Machine Tool — Cutting Process System Using Controllable Eliminator of Vibration

Engineering Transactions, 2006
In the paper, the results of simulation investigations on the application of a semi-active vibration eliminator for suppression of machining chatter are presented.
Marcin Chodźko, Krzysztof Marchelek, Arkadiusz Parus   +2 more
doaj   +1 more source

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
core   +1 more source

Subterranean environments contribute to three‐quarters of classified ecosystem services

Biological Reviews, EarlyView.
ABSTRACT Beneath the Earth's surface lies a network of interconnected caves, voids, and systems of fissures forming in rocks of sedimentary, igneous, or metamorphic origin. Although largely inaccessible to humans, this hidden realm supports and regulates services critical to ecological health and human well‐being.
Stefano Mammola, David Brankovits, Tiziana Di Lorenzo, Isabel R. Amorim, Raluca Ioana Bancila, Adrià Bellvert, Enrico Bernard, Anna Blomberg, Paulo A.V. Borges, Martina Cappelletti, Rodrigo Lopes Ferreira, Rosalina Gabriel, Diana M. P. Galassi, Laura Garzoli, Vasilis Gerovasileiou, Grant C. Hose, Kathryn L. Korbel, Simone Martino, Ana Z Miller, Nataša Mori, Veronica Nanni, Giuseppe Nicolosi, Mattia Saccò, Troy S. Sakihara, Marconi Souza Silva, Anne E. Tamalavage, Maja Zagmajster, Efraín Chávez, Christian Griebler, Pedro Cardoso, Alejandro Martínez   +30 more
wiley   +1 more source

Disturbance‐Resilient Voltage/Power‐Quality Management for Islanded Inverters Using Self‐Tuning Type‐3 Fuzzy Controller

Energy Science &Engineering, EarlyView.
An adaptive fuzzy controller using an interval type‐3 fuzzy logic system replaces the SMC switching term to mitigate chattering while preserving global stability for islanded inverters. Simulations show lower THD, greater robustness to disturbances and parameter variations, and improved voltage‐tracking accuracy, with applicability to other uncertain ...
Man‐Wen Tian, Jun‐Bo Mao, Nurkhat Zhakiyev, Didar Yedilkhan, Ruslan Omirgaliyev, Du Changdong, Amirhossein Khosravi Sarvenoee, Ardashir Mohammadzadeh   +7 more
wiley   +1 more source

Fundamental Investigation of the Application Behavior and Stabilization Potential of Milling Tools with Structured Flank Faces on the Minor Cutting Edges

Journal of Manufacturing and Materials Processing
In milling processes in which material removal is performed periodically from solid material, dynamic effects are generally considered to be responsible for instabilities and subsequent productivity limits.
Raphael Isaak Elias Schönecker, Jonas Baumann, Rafael Garcia Carballo, Dirk Biermann   +3 more
doaj   +1 more source

Design of eddy current dampers for vibration suppression in robotic milling

Advances in Mechanical Engineering, 2018
The milling robot normally has a low stiffness which may easily cause chatter during machining. This article presents a novel eddy current damper design for chatter suppression in the robotic milling process.
Fan Chen, Huan Zhao
doaj   +1 more source