Results 71 to 80 of about 6,438 (169)

Parts Surface Defect Detection Algorithm Based on Improved YOLOv8s

Engineering Reports, Volume 8, Issue 1, January 2026.
Enhanced YOLOv8s for real‐time surface defect detection: An improved YOLOv8s deep learning model is developed for detecting fatigue and linear cracks on part surfaces. Trained on a high‐resolution crack dataset with diverse environmental and texture conditions, the model achieves mAP@0.5 = 0.9626, mAP@0.5:0.95 = 0.7803, Precision = 0.926, and Recall ...
Zhe Sun, Caiying Qiao, Dongrui Li, Enhua Zhang   +3 more
wiley   +1 more source

On-Line Learning Theory of Soft Committee Machines with Correlated Hidden Units - Steepest Gradient Descent and Natural Gradient Descent -

, 2002
The permutation symmetry of the hidden units in multilayer perceptrons causes the saddle structure and plateaus of the learning dynamics in gradient learning methods.
Amari S., Amari S., Fukumizu K., Rattray M., Saad D., Yang H. H.   +5 more
core   +1 more source

Novel Digital NGD Methodology for FPGA-Based Embedded Systems

IEEE Access
Negative Group Delay (NGD) is a concept not widely explored in embedded digital signal processing systems, and this study aims to fill this gap. It presents a novel methodology for implementing NGD using second-order Finite Impulse Response (FIR) filter.
Rivo Randriatsiferana, Jordane Lorandel, Ruben Salvador, Christophe Moy   +3 more
doaj   +1 more source

Structural and Functional Connectivity in Parkinson's Disease Patients With Freezing of Gait and Other Gait Disturbances

Clinical Neuroimaging, Volume 3, Issue 1, 2026.
ABSTRACT Background Freezing of gait (FoG) is a debilitating motor feature that affects individuals with Parkinson's disease (PD). The mechanism underlying FoG is not entirely understood, which poses a challenge in finding effective treatment. The goal of this study is to advance the understanding of FoG pathophysiology.
Quynh Le, Arichena Manmatharayan, Mashaal Syed, Kichang Kang, Tsao‐Wei Liang, Mahdi Alizadeh, Chengyuan Wu   +6 more
wiley   +1 more source

An external potential dynamic study on the formation of interface in polydisperse polymer blends

, 2009
The formation of interface from an initial sharp interface in polydisperse A/B blends is studied using the external potential dynamic method. The present model is a nonlocal coupling model as we take into account the correlation between segments in a ...
Abramowitz M., Dadong Yan, Doi M., Fredrickson G. H., Shuanhu Qi, Xinghua Zhang   +5 more
core   +1 more source

Association Between Thyroid Nodules and Thyroid Cancer Risk in Graves’ Disease: A Surgical Cohort from an Iodine-deficient Region

Haseki Tıp Bülteni
Aim: The clinical relevance of thyroid nodules in Graves’ disease (GD) remains controversial, particularly in iodine-deficient regions where both nodularity and thyroid cancer are more prevalent.
Tugba Matlim Ozel, Mine Yilmaz, Sezer Akbulut, Aykut Celik, Gorkem Yildiz, Nilsen Yildirim Erdogan, Serkan Sari   +6 more
doaj   +1 more source

Selective harmonic elimination pulse width modulation based hybrid multilevel inverter topology with reduced components

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
Abstract In this paper, a reduced switch count single‐phase hybrid multilevel inverter (MLI) is presented. Level generation unit (LGU) and polarity changing unit (PCU) are the two parts of the presented topology which are connected in series. Other advantages of the proposed topology include the reduced switch count, higher level generation with ...
Mohammad Wasiq, Mudasir Ahmed Memon, Prashant Shrivastava, Saad Mekhilef, Mehdi Seyedmahmoudian, Alex Stojcevski, Ben Horan   +6 more
wiley   +1 more source

Triple boost switched capacitor multilevel inverter (TB‐SCMLI) with reduced components and self‐voltage balance

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
The proposed TB‐SCMLI is able to provide seven levels of output voltage by balancing the voltage of two capacitors with the given control logic. The various SCMLIs are evaluated to determine the contribution of the suggested TB‐SCMLI topology's merits and downsides.
Md. Reyaz Hussan, Mohammed A. Al‐Hitmi, Marif Daula Siddique, Shirazul Islam, Atif Iqbal   +4 more
wiley   +1 more source

Beyond Convexity: Stochastic Quasi-Convex Optimization

, 2015
Stochastic convex optimization is a basic and well studied primitive in machine learning. It is well known that convex and Lipschitz functions can be minimized efficiently using Stochastic Gradient Descent (SGD).
Hazan, Elad, Levy, Kfir Y., Shalev-Shwartz, Shai   +2 more
core  

Evolution of nonstop, no-go and nonsense-mediated mRNA decay and their termination factor-derived components

BMC Evolutionary Biology, 2008
Background Members of the eukaryote/archaea specific eRF1 and eRF3 protein families have central roles in translation termination. They are also central to various mRNA surveillance mechanisms, together with the eRF1 paralogue Dom34p and the eRF3 ...
Baldauf Sandra L, Atkinson Gemma C, Hauryliuk Vasili   +2 more
doaj   +1 more source