Results 41 to 50 of about 13,578 (255)

Improved Variational Mode Decomposition and One-Dimensional CNN Network with Parametric Rectified Linear Unit (PReLU) Approach for Rolling Bearing Fault Diagnosis

Applied Sciences, 2022
As a critical component of rotating machinery, rolling bearings are essential for the safe and efficient operation of machinery. Sudden faults of rolling bearings can lead to unscheduled downtime and substantial economic costs.
Xiaofeng Wang, Xiuyan Liu, Jinlong Wang, Xiaoyun Xiong, Suhuan Bi, Zhaopeng Deng   +5 more
doaj   +1 more source

Structural Optimization Using Grey Wolf Optimizer and Its Variants

ITEGAM-JETIA
Now a days, many metaheuristic optimization algorithms are invariably used in the field of engineering and data science. In structural mechanics, many stochastic optimization algorithms are employed for solving the complex numerical problems.
Bhavik Dipakbhai Upadhyay, Ms. Sonal T. Dave, Vishal J. Pandya, Jignesh G. Parmar, Hasmukh P. Koringa, Miral J. Patel   +5 more
doaj   +1 more source

Simultaneous lesion and neuroanatomy segmentation in Multiple Sclerosis using deep neural networks [PDF]

, 2019
Segmentation of both white matter lesions and deep grey matter structures is an important task in the quantification of magnetic resonance imaging in multiple sclerosis.
Aschwanden, Fabian, Chan, Andrew, Grunder, Lorenz, McKinley, Richard, Muri, Raphaela, Reyes, Mauricio, Rummel, Christian, Salmen, Anke, Verma, Rajeev, Wagner, Franca, Weisstanner, Christian, Wepfer, Rik, Wiest, Roland   +12 more
core   +2 more sources

Joint power control and user grouping mechanism for efficient uplink non‐orthogonal multiple access‐based 5G communication: Utilising the Lèvy‐flight firefly algorithm

IET Networks, EarlyView., 2023
We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh, Khaled F. Hayajneh, Haythem Bany Salameh, Raed Al Athamneh, Yaser Jararweh   +4 more
wiley   +1 more source

Cement Transport Vehicle Routing with a Hybrid Sine Cosine Optimization Algorithm

Advances in Civil Engineering, 2023
This study will solve the classical vehicle routing problem, the goal is to generate k trips with the shortest distance for h customers with predetermined locations and needs..
Vu Hong Son Pham, Van Nam Nguyen
doaj   +1 more source

Node coverage optimization algorithm for wireless sensor networks based on improved grey wolf optimizer

Journal of Algorithms & Computational Technology, 2019
Aiming at the problem of wireless sensor network node coverage optimization with obstacles in the monitoring area, based on the grey wolf optimizer algorithm, this paper proposes an improved grey wolf optimizer (IGWO) algorithm to improve the ...
Zhendong Wang, Huamao Xie, Zhongdong Hu, Dahai Li, Junling Wang, Wen Liang   +5 more
doaj   +1 more source

A Novel Global MPP Tracking of Photovoltaic System Based on Whale Optimization Algorithm [PDF]

, 2016
To harvest maximum amount of solar energy and to attain higher efficiency, photovoltaic generation (PVG) systems are to be operated at their maximum power point (MPP) under both variable climatic and partial shaded condition (PSC).
Kumar, C. S. (Cherukuri), Rao, R. S. (Rayapudi)   +1 more
core   +1 more source

Cryo‐EM Structure Guided Engineering of Botulinum Neurotoxin A With Advanced Receptor Binding Affinity and Therapeutical Benefits

Advanced Science, EarlyView.
The butterfly unfolded wing in an open form structure of botulinum neurotoxin type A (BoNT/A) at physiological‐state was confirmed at 2.85 Å resolution by cryo‐electron microscopy (cryo‐EM). Structure‐guided protein engineering significantly enhanced the receptor‐binding affinity, therapeutic efficacy, and safety of the engineered toxin variants ...
Wenrui Wang, Zhaxi Zerang, Linjin You, Ziye Liu, Rong Nie, Fuwei Qi, Fenfen Gao, Chengmu Zhao, Wantong Ma, Jinghan He, Xiaoru Wang, Shanquan Wu, Bo Liu, Xinyao Liu, Dongsheng Lei, Dejuan Zhi, Dongsheng Wang   +16 more
wiley   +1 more source

Multi-Area Load Frequency Control of Hydro-Thermal-Wind Power Based on Improved Grey Wolf Optimization Algorithm

Elektronika ir Elektrotechnika, 2020
The mathematical model of load frequency control is established in the interconnected power system of hydro, thermal, and wind for solving the problem of frequency instability in this paper. Besides, the improved grey wolf optimization algorithm (GWO) is
Fannie Kong, Jinfang Li, Daliang Yang
doaj   +1 more source

Asymptotic behaviour and numerical approximation of optimal eigenvalues of the Robin Laplacian [PDF]

, 2012
We consider the problem of minimising the $n^{th}-$eigenvalue of the Robin Laplacian in $\mathbb{R}^{N}$. Although for $n=1,2$ and a positive boundary parameter $\alpha$ it is known that the minimisers do not depend on $\alpha$, we demonstrate ...
Antunes, Pedro R. S., Freitas, Pedro, Kennedy, James B.   +2 more
core   +1 more source