Results 81 to 90 of about 80,859 (280)

High‐Fidelity Simulation‐Driven Control Framework for Robust Grid Integration of Renewable Energy Systems

Energy Science &Engineering, EarlyView.
This work proposes a high‐fidelity, simulation‐driven control framework for robust grid integration of hybrid PV–wind systems using a modular, hierarchical multi‐loop architecture with adaptive decision logic. The framework coordinates power, DC‐link voltage, and grid currents under fast load and generation changes, enabling safe exploration of extreme
Wulfran Fendzi Mbasso, Ambe Harrison, Idriss Dagal, Pradeep Jangir, Zhe Liu, Aseel Smerat   +5 more
wiley   +1 more source

EVALUATION OF CHATTER VIBRATION FREQUENCY IN CNC TURNING OF 4340 ALLOY STEEL MATERIAL [PDF]

, 2017
In this study, an experimental investigation of chatter in CNC turning for 4340 Alloy Steel material was carried out. Empirical study of chatter and critical cutting condition in CNC turning has been conducted through a well- designed three-factor three ...
Nwoke , Obinna N., Okafor , Christian E., Okokpujie , Imhade P., Okonkwo , Ugochukwu C.   +3 more
core  

Queer configurations: The female divine, regional identity, and Queer‐religious belonging in South India

Feminist Anthropology, EarlyView.
Abstract This article explores how queerness and religion intersect in a unique enactment of Bathukamma, a flower festival honoring the female divine in Hyderabad, the capital of the South Indian state of Telangana. Drawing on theories of figuration, I analyze how local queer organizations celebrate the festival in a way that engages two distinctive ...
Stefan Binder
wiley   +1 more source

Analytical modeling of spindle-tool dynamics on machine tools using Timoshenko beam model and receptance coupling for the prediction of tool point FRF [PDF]

, 2006
Regenerative chatter is a well-known machining problem that results in unstable cutting process, poor surface quality and reduced material removal rate.
Budak, Erhan, Erturk, A., Ertürk, A., Ozguven, H. N., Özgüven, H. N.   +4 more
core   +3 more sources

The role of the gut microbiome in the regulation of high‐altitude adaptation

iMeta, EarlyView.
This study is the first to elucidate mechanisms of high‐altitude adaptation from the perspective of the rumen ecosystem by using indigenous yaks and Holstein cows that have lived at high altitude since birth as comparative models. Through a systematic comparison of their rumen ecology using multi‐omics approaches—including rumen metagenomics ...
Xinyu Zhang, Senlin Zhu, Michael Kreuzer, Shoukun Ji, Wei Wang, Yanliang Bi, Shengli Li   +6 more
wiley   +1 more source

Efficient Real-Time Tool Chatter Detection Through Bandpass Filtering

Machines
Tool Chatter or Self-Excited Vibration is a common issue in machining processes. This phenomenon arises due to various factors, such as tool rigidity, depth of cut, spindle speed, etc., leading to poor surface finish, excessive tool wear, and premature ...
Javier Arenas, Jorge Martínez de Alegría, Patxi X. Aristimuño, Vicente Gómez   +3 more
doaj   +1 more source

Trajectory Control of Manipulator Robots With Uncertainties: A Saturated Continuous Integral Sliding Mode Approach

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT This study addresses the trajectory tracking control for manipulator robots with uncertainties. The main objective is to ensure that the robot follows a desired trajectory despite the presence of uncertainties/disturbances and considering control input constraints. The approach is developed in the framework of continuous integral sliding modes.
Emanuel Ortiz‐Ortiz, Juan Eduardo Velázquez‐Velázquez, Ramón Silva‐Ortigoza, Rosalba Galván‐Guerra   +3 more
wiley   +1 more source

Machine Tool Chatter Identification Based on Dynamic Errors of Different Self-Synchronized Chaotic Systems of Various Fractional Orders

IEEE Access, 2019
Chatter, the vibration between the workpiece and cutting tool, is a common phenomenon during the milling process. Traditionally, the Fourier transform analysis is mainly used to extract the features and determine whether chatter occurs. In this paper, an
Bo-Lin Jian, Cheng-Chi Wang, Jin-Yu Chang, Xiao-Yi Su, Her-Terng Yau   +4 more
doaj   +1 more source

Cyber Chatter

International Journal for Research in Applied Science and Engineering Technology
Abstract: Cyber Chatter, a web-based application built on the MERN stack, uses the power of GPT (Generative Pre-trained Transformer) technology to provide basic educational chat services and staff Building and ensure efficiency and they have been able to do it well.
Aanvi Gupta, Abhishek Mishra, Khushi Srivastava   +2 more
openaire   +1 more source

Sharp Force Trauma and Chop Mark Identification Bias: Experimental Evidence on the Effects of Bone Morphology, Cortical Thickness, and Ax Material

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT Sharp force trauma (SFT) is the main criterion used to identify chop mark butchery in zooarchaeology, yet its reliability as a diagnostic feature has not been systematically tested. Chop marks reflect both cutting and fracturing processes and exhibit characteristics of both sharp and blunt trauma.
Tiffany Okaluk, Justin Dallmann, Haim Cohen, Tina L. Greenfield, Itzick Shai   +4 more
wiley   +1 more source