Results 61 to 70 of about 1,458 (251)

Robust Reinforcement Learning Control Framework for a Quadrotor Unmanned Aerial Vehicle Using Critic Neural Network

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Quadrotor unmanned aerial vehicle control is critical to maintain flight safety and efficiency, especially when facing external disturbances and model uncertainties. This article presents a robust reinforcement learning control scheme to deal with these challenges.
Yu Cai, Yefeng Yang, Tao Huang, Boyang Li   +3 more
wiley   +1 more source

Numerical Analysis of CNC Milling Chatter Using Embedded Miniature MEMS Microphone Array System

Inventions, 2018
With the increasingly common use of industrial automation for mass production, there are many computer numerical control (CNC) machine tools that require the collection of data from intelligent sensors in order to analyze their processing quality.
Pang-Li Wang, Yu-Ting Tsai
doaj   +1 more source

Effects of Lycium barbarum Residue Substituting Dietary Maize on Fecal Microbiota and Growth Performance of Crossbred Simmental Cattle

Animal Research and One Health, EarlyView.
The bioactive substances we extracted from Lycium barbarum residue (LBR) have a typical polysaccharide structure. When 1.80% LBR was used to replace maize in the diet, the average daily gain of rossbred Simmental was significantly increased, and anti‐inflammatory ability was improved. In addition, LBR improved the fecal microbial composition, increased
Kun Cai, Mingtan Li, Lihang He, Ning Ma, Haoyu Liu, Chi Xu, Xianhua Wu, Zeguang Xing, Qian Xing, Yuankai Qu, Xi Ma   +10 more
wiley   +1 more source

Turning Chatter Detection Using a Multi-Input Convolutional Neural Network via Image and Sound Signal

Machines, 2023
In mechanical cutting and machining, self-excited vibration known as “Chatter” often occurs, adversely affecting a product’s quality and tool life. This article proposes a method to identify chatter by applying a machine learning model to classify data ...
Quang Ngoc The Ho, Thanh Trung Do, Pham Son Minh, Van-Thuc Nguyen, Van Thanh Tien Nguyen   +4 more
doaj   +1 more source

Dietary Glutamine Supplementation Alleviated Rumen Epithelium Oxidative Damage and Apoptosis Induced by Feed Restriction via Maintaining Mitochondrial Homeostasis in Female Yaks

Animal Research and One Health, EarlyView.
Dietary glutamine (Gln) supplementation increased the ATP levels and promoted cell proliferation in the rumen epithelium of feed‐restricted yaks. Besides, Gln inhibited ROS accumulation and reduced oxidative damage and apoptosis in the rumen epithelium of feed‐restricted yaks.
Ziqi Yue, Shanpeng Ke, Liyuan Shi, Rui Hu, Zhisheng Wang, Quanhui Peng, Huawei Zou, Jianxin Xiao, Yahui Jiang, Fali Wu, Yiping Tang   +10 more
wiley   +1 more source

Genetic Diversity, Adaptation, Wild Introgression, and Coat Color Mutation of Golden Yak

Animal Research and One Health, EarlyView.
Genetic diversity, adaptation, wild introgression, and coat color mutation of golden yak from two populations on the Qinghai‐Xizang Plateau. ABSTRACT The golden yak lives on the Qinghai‐Xizang Plateau with a golden coat and adapts to high altitudes and strong ultraviolet environment. The golden coat is a prominent phenotype in many domesticated species,
Huixuan Yan, Jialei Chen, Chuzhao Lei, Fengwei Zhang, Shunzhong He, Weiru Song, Hongyan Ma, Shuling Li, Guomei Li, Laba Yongcuo, Jianlin Han, Johannes A. Lenstra, Qiang Zhang, Rende Song, Basang Wangdui, Ningbo Chen   +15 more
wiley   +1 more source

A novel chatter detection method for milling using deep convolution neural networks [PDF]

, 2021
Regenerative chatter is harmful to machining operations, and it must be avoided to increase production efficiency. The recent success of deep learning methods in many fields also presents an excellent opportunity to advance chatter detection and its ...
Özbayoğlu, Ahmet Murat, Ünver, Hakkı Özgür, Şener, B., Güdelek, M. U.   +3 more
core   +1 more source

Monitoring Built-Up Edge, Chipping, Thermal Cracking, and Plastic Deformation of Milling Cutter Inserts through Spindle Vibration Signals

Machines, 2023
Condition monitoring provides insights into the type of damage occurring in the cutting tool during machining to facilitate its timely maintenance or replacement.
Keshav Jatakar, Varsha Shah, Rüstem Binali, Emin Salur, Hacı Sağlam, Tadeusz Mikolajczyk, Abhishek D. Patange   +6 more
doaj   +1 more source

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

Transitioning from Simulation to Reality: Applying Chatter Detection Models to Real-World Machining Data

Machines
Chatter, a self-excited vibration phenomenon, is a critical challenge in high-speed machining operations, affecting tool life, product surface quality, and overall process efficiency.
Matthew Alberts, Sam St. John, Simon Odie, Anahita Khojandi, Bradley Jared, Tony Schmitz, Jaydeep Karandikar, Jamie B. Coble   +7 more
doaj   +1 more source