Results 61 to 70 of about 80,859 (280)

Experimental Study on Application of Tuned Mass Dampers for Chatter in Turning of a Thin-Walled Cylinder

Applied Sciences, 2021
Chatter is more likely to occur during the turning process of a thin-walled cylindrical workpiece owing to the low rigidity of such workpieces. Chatter causes intensive vibration, deterioration of the surface finish accuracy, tool damage, and tool wear ...
Yutaka Nakano, Tsubasa Kishi, Hiroki Takahara   +2 more
doaj   +1 more source

Eggshell‐Based Biochar for Superior Adsorption of Crystal Violet Dye and Fluoride From Wastewater

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Present study investigates the efficiency of eggshell biochar as a low‐cost and ecofriendly adsorbent for the simultaneous removal of fluoride ions and crystal violet (CV) dye from wastewater. The eggshell waste was pyrolyzed to produce biochar, which was thoroughly characterized and subsequently employed for contaminant adsorption.
T. Mounika, A. Vijaya Bhaskar Reddy, V. Madhavi, K. V. Santhee Devi   +3 more
wiley   +1 more source

Chatter Identification in Milling of Titanium Alloy Using Machine Learning Approaches with Non-Linear Features of Cutting Force and Vibration Signatures

International Journal of Prognostics and Health Management
The generation of chatter during machining operations is extremely detrimental to the cutting tool life and the surface quality of the workpiece. The present study aims to identify chatter conditions during the end milling of Ti6Al4V alloy.
Viswajith S Nair, Rameshkumar K, Saravanamurugan S   +2 more
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

Influence of anisotropic support of tool for self-excited chatter in end-milling

Nihon Kikai Gakkai ronbunshu
In end milling, chatter vibration generated during processing becomes a problem in processing accuracy. Chatter vibration is classified into forced chatter and self-excited chatter depending on the cause of the vibration.
Kenichiro MATSUZAKI, Takahiro RYU, Takashi NAKAE, Keizo TSUKAMOTO, Ryuta SAMESHIMA   +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

Machine tool chatter test and analysis

The Journal of Engineering, 2019
Machine chatter phenomenon has a great influence on the stability during the machining process of the machine tool. It has a great limitation on the machining efficiency of the machine tool and the machining accuracy of the product.
Linxi Li, Jianlin Zhong, Hongjun Wang, Yangjie Gao   +3 more
doaj   +1 more source

In-Process Chatter Detection in Milling: Comparison of the Robustness of Selected Entropy Methods

Journal of Manufacturing and Materials Processing, 2022
This article deals with the issue of online chatter detection during milling. The aim is to achieve a verification of the reliability and robustness of selected methods for the detection of chatter that can be evaluated on the machine tool in real time ...
Barbora Hauptfleischová, Lukáš Novotný, Jiří Falta, Martin Machálka, Matěj Sulitka   +4 more
doaj   +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

Wearable exoskeleton robot control using radial basis function‐based fixed‐time terminal sliding mode with prescribed performance

Asian Journal of Control, EarlyView.
Abstract This paper tackles the problem of robust and accurate fixed‐time tracking in human–robot interaction and deals with uncertainties. This work introduces a control approach for a wearable exoskeleton designed specifically for rehabilitation tasks.
Mahmoud Abdallah, Yassine Kali, Maarouf Saad, Raouf Fareh, Maamar Bettayeb   +4 more
wiley   +1 more source