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Photodissociation Dynamics of Formic Acid at 230 nm: A Computational Study of the CO and CO Forming Channels.
J Phys Chem A
January 2025
Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
Recent photolysis experiments with formic acid suggest that the roaming mechanism is a significant CO-forming pathway at a photolysis energy of 230 nm. While previous computational studies have identified multiple dissociation pathways for CO-forming channels, the dynamic features of these pathways remain poorly understood. This study investigates the dissociation dynamics of the CO + HO and CO + H channels in the ground state (S) of formic acid using direct dynamics simulation and the generalized multi-center impulsive model (GMCIM) at 230 nm.
View Article and Find Full Text PDFEnhanced piezoelectric sensor to distinguish real-time arrhythmia for predicting heart failure.
Biosens Bioelectron
January 2025
Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, 610031, Sichuan, PR China; Key Laboratory of Advanced Technologies of Materials Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, PR China. Electronic address:
Monitoring cardiac rhythm is crucial for diagnosis of heart failure. However, the deficient sensitivity of polyvinylidene fluoride (PVDF) sensors impede their application in monitoring of cardiac rhythm due to the limited piezoelectricity. Here, doping of CoFeO and aligning fibers were jointly adopted to enhance the piezoelectricity of PVDF, attributed to the transformation of α-PVDF to β-PVDF from 51.
View Article and Find Full Text PDFCognitive neurodynamic approaches to adaptive signal processing in wireless sensor networks.
Cogn Neurodyn
December 2025
Department of Electronics and Communication Engineering, R.M.K. College of Engineering and Technology, Chennai, India.
In recent years, Wireless Sensor Networks (WSN) have become vital because of their versatility in numerous applications. Nevertheless, the attain problems like inherent noise, and limited node computation capabilities, result in reduced sensor node lifespan as well as enhanced power consumption. To tackle such problems, this study develops a Modified-Distributed Arithmetic-Offset Binary Coding-based Adaptive Finite Impulse Response (MDA-OBC based AFIR) framework.
View Article and Find Full Text PDFAn Inanimate Intracorporeal Anastomosis Model With Real-Time Force Feedback: An Initial Study.
J Surg Res
January 2025
Department of Surgery, Amsterdam UMC, Location Vrije Universiteit, Amsterdam, The Netherlands; Cancer Center Amsterdam, Amsterdam, The Netherlands.
Introduction: Laparoscopic intestinal anastomosis requires specific technical skills and should be trained in a safe simulation environment before performing surgery in daily practice. However, anastomosis simulation training with objective feedback is not widely available. This study aimed to analyze a laparoscopic intestinal anastomosis training task that utilizes objective force, motion, and time measurements.
View Article and Find Full Text PDFFinite Element Simulation of Acoustic Emissions from Different Failure Mechanisms in Composite Materials.
Materials (Basel)
December 2024
Department of Mechanical Engineering, North Carolina A & T State University,1601 E. Market Street, Greensboro, NC 27411, USA.
Damage in composite laminates evolves through complex interactions of different failure modes, influenced by load type, environment, and initial damage, such as from transverse impact. This paper investigates damage growth in cross-ply polymeric matrix laminates under tensile load, focusing on three primary failure modes: transverse matrix cracks, delaminations, and fiber breaks in the primary loadbearing 0-degree laminae. Acoustic emission (AE) techniques can monitor and quantify damage in real time, provided the signals from these failure modes can be distinguished.
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