Defensa y serguridad

Bioinspired Fully On‐Chip Learning Implemented on Memristive Neural Networks

01/07/2025 - This work proposes a memristive neural network based on van der Waals ferroelectric memristors and contrastive Hebbian learning, enabling fully on‐chip learning. The system achieves over 98%...

Anchoring Morphological Representations Unlocks Latent Proprioception in Soft Robots

01/07/2025 - The authors present ProSoRo, a proprioceptive soft robot that anchors morphological states to a single internal reference frame and employs a multimodal variational autoencoder for crossmodal...

Enhanced Embolic Signal Analysis through Ensemble Deep Learning Techniques Utilizing Transfer Learning and Layer Freezing Strategies

01/07/2025 - A 10‐convolutional neural network ensemble using transfer learning and layer freezing analyzes 400 Doppler‐ultrasound spectrograms to distinguish speckle, artifact, and ESs. Soft and hard voting...

Model‐Free Deep Reinforcement Learning with Multiple Line‐of‐Sight Guidance Laws for Autonomous Underwater Vehicles Full‐Attitude and Velocity Control

30/06/2025 - In this study, a deep reinforcement learning framework with multi‐line‐of‐sight guidance is proposed. An augmented‐twin delayed deep deterministic policy gradient algorithm adapts to attitude...

Highly Efficient Classification of Time‐Series Based on Resistive Switching Cluster‐Assembled Materials

25/06/2025 - Cluster‐assembled nanocomposite devices are employed for the classification of neuronal traces, without any preprocessing of the input time‐series or prior training of the nonlinear devices. The...

NSIP: Neural Network SPICE Integration Platform for Ferroelectric Field‐Effect Transistor‐Based Crossbar Arrays

25/06/2025 - This study presents the neural network SPICE integration platform (NSIP), a novel simulation framework for FeFET‐based crossbar arrays in neuromorphic computing. NSIP accurately models synaptic...

RefineCatDiff: Toward High‐Quality Medical Image Segmentation via a Categorical Diffusion Refinement Framework

25/06/2025 - This study proposes RefineCatDiff, a refinement framework for high‐quality medical image segmentation. By developing a categorical distribution‐based discrete diffusion process for refinement,...

Adapting Image‐Based Models for 1D Data via Spider Plot Transformation and Transfer Learning

25/06/2025 - A novel method enables the use of pretrained image‐based neural networks for complex 1D data, including Raman and mid‐infrared spectra, electrocardiograms, and mass spectrometry. 2D spider plots...

Energy‐Efficient Knapsack Optimization Using Probabilistic Memristor Crossbars

24/06/2025 - The knapsack problem, a nondeterministic polynomial‐time (NP)‐hard combinatorial optimization problem, is solved energy‐efficiently. This work presents an algorithm‐hardware co‐design and...

A Field Programmable Gate Array‐Assisted Optoelectronic Emulator for Photonic Neuromorphic Computing

23/06/2025 - This work presents a hybrid optoelectronic architecture using field‐programmable‐gate‐array‐controlled optical components for multiplication operations. Data are encoded via electro‐optic...

Exploring the Influence of Applied Potential and Catalyst Morphology on the Selectivities of Copper Toward Carbon Dioxide Electroreduction Using Machine Learning

23/06/2025 - A machine learning‐assisted workflow integrates experimental data mining, model training, and SHapley Additive exPlanations‐based interpretation to map the coupled effects of catalyst morphology,...

Enhanced Actuation Stress in Variable Stiffness Liquid Crystal Elastomers

22/06/2025 - Liquid crystal elastomers (LCEs) filled with low‐melting‐point alloy particles exhibit a fivefold increase in actuation stress and tunable stiffness. At low filler concentrations, mechanically...

A Fuzzy Risk Assessment Approach Based on Z‐Numbers for Enhancing Safety and Human‐Robot Collaboration in Automotive Sector

22/06/2025 - A novel risk assessment approach that integrates the fuzzy set theory and Z‐numbers with multicriteria decision‐making techniques (Delphi, decision‐making trial and evaluation laboratory,...

1 Transistor‐Dynamic Random Access Memory as Synaptic Element for Online Learning

17/06/2025 - This work demonstrates the feasibility of utilizing capacitor‐less 1 transistor(1 T)‐dynamic random access memory as synaptic element with multilevel capability, large dynamic range of...

An Ultrathin and Lightweight Soft Inflatable Actuator for Natural Tactile Sensory Feedback

17/06/2025 - A lightweight, ultrathin soft actuator mimics natural touch by delivering strong, multimodal haptic feedback through pressure and vibration. Tested on both able‐bodied individuals and amputees, it...

Automatic Virtual‐to‐real Calibration and Dynamic Registration of Deformable Tissue for Endoscopic Submucosal Dissection

17/06/2025 - During endoscopic submucosal dissection (ESD), the precise and intuitive sensing of target tissues is of crucial importance. Augmented reality (AR), at present, emerges as a powerful solution to...

Challenges and Opportunities in Combining Ultrasound and Inductive Coupling for Energy Supply and Bidirectional Data Exchange in Bioelectronics Medicine Implant Networks

16/06/2025 - In this contribution, it is shown that miniaturized nerve stimulation implants can be used in collaborative networks. Inductive links and ultrasound are combined to supply these implants with energy...

Memimpedance‐Based Biomolecular Device for Adaptive Physical Reservoir Computing

16/06/2025 - By integrating fast‐switching ion‐channel‐based memristive and slow‐switching biomembrane‐based memcapacitive nodes within droplet interface bilayers, this hybrid memimpedance reservoir...

In‐Sensor Reservoir Computing Using Ferroelectric Optoelectronic Synapse for Near‐Infrared Face Recognition

12/06/2025 - Near‐infrared reservoir computing system has been realized by using α‐In2Se3 optoelectronic device with concise device and algorithm architecture, achieving high accuracy near 100% and noise...

A Synthesized Neural Control System for Bioinspired Robots to Achieve Diverse Locomotion

10/06/2025 - A novel hexapod robot named RENS H2 based on the synthesized neural control system. The control system is constructed based on the central pattern generator and virtual motoneurons network, serving...

Monolithic Biohybrid Flexure Mechanism Actuated by Bioengineered Skeletal Muscle Tissue

27/05/2025 - A scalable, monolithic biohybrid flexure mechanism is presented, integrating engineered skeletal muscle tissue with a soft, biocompatible, hollow silicone cylinder featuring dual pillars. Muscle...