Results 101 to 110 of about 9,914 (264)

Bidirectional Flyback-push-pull Dc-dc Converter

, 2015
This paper presents a bidirectional flyback- push-pull dc-dc converter. The main characteristics of the proposed converter are galvanic isolation by high- frequency transformers, high efficiency, reduced number of components and low current ripple at ...
Ivo Barbi, duardo Valmir de Souza
core   +1 more source

An Accessible Microfluidic Platform for the Generation of Polarized Brain Organoids

Advanced Materials Technologies, EarlyView.
This study presents an accessible double‐gradient microfluidic device that enables controlled morphogen delivery and spatially polarized differentiation in brain organoids. By integrating a pump‐free design and stable fabrication method, the platform generates dorsal–ventral neuronal asymmetry, offering a reproducible and versatile approach to model ...
Daniel Pérez‐Calixto, Manuel Alejandro Vazquez Valle, Mitzi Pérez‐Calixto, Cindy Peto‐Gutiérrez, Iván Velasco, Genaro Vázquez‐Victorio, Itzel Escobedo‐Avila   +6 more
wiley   +1 more source

TWO STAGE BIDIRECTIONAL DC-DC CONVERTER FOR BATTERY HYBRID POWER GENERATORS

, 2021
In this paper a two stage bidirectional resonantdc-dc converter is introduced for battery hybrid power generators. The bidirectional dc-dc converter consists of two stage, one is series resonant converter and another is non isolated half bridge dc-dc ...
R. A. Metri, Sonali M. Deshmukh
core   +1 more source

Bidirectional Process Prediction in the Laser‐Induced‐Graphene Production Using Blackbox Deep Learning

Advanced Materials Technologies, EarlyView.
This study shows that a lightweight blackbox neural network provides a practical, cost‐effective solution for bidirectional process prediction in laser‐induced graphene (LIG) fabrication. Achieving high predictive performance with minimal overhead, the approach democratizes machine learning (ML) for resource‐limited environments.
Maxim Polomoshnov, Nitheesh M. Nair, Gerardo Hernández‐Sosa, Markus Reischl   +3 more
wiley   +1 more source

Impedance interactions in bidirectional cascaded converter

, 2016
A cascaded converter is built by connecting one elementary converter to another. Output impedance of one converter will therefore interact with input impedance of the other converter. This interaction will change when power flow reverses. To compare this
Loh, Poh Chiang, Hu, Yanting, Chen, Zhe; id_orcid, Tian, Yanjun, Deng, Fujin; id_orcid   +4 more
core   +1 more source

Degradable Magnetic Composites from Recycled NdFeB Magnets for Soft Actuation and Sensing

Advanced Robotics Research, EarlyView.
This work presents a degradable soft magnetic composite made from recycled NdFeB particles embedded in a gelatin‐based organogel. The material is processed into magnetic sensors and soft robotic components, which can later be dissolved in a green solvent to recover NdFeB magnetic particles.
Muhammad Bilal Khan, Lin Guo, Kilian Schäfer, Eduardo Sergio Oliveros‐Mata, Xiaotao Wang, Florian Hofmann, Matthias Lutzi, Mark Suppelt, Proloy Taran Das, Jan Schmidtpeter, Imants Dirba, Stephan Rinderknecht, Mario Kupnik, Denys Makarov, Oliver Gutfleisch   +14 more
wiley   +1 more source

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

Advanced Robotics Research, EarlyView.
A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun, Liang Zhang, Jianwen Zeng, Xuefeng Wang   +3 more
wiley   +1 more source

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

Advanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

A Novel Tri-Mode Bidirectional DC–DC Converter for Enhancing Regenerative Braking Efficiency and Speed Control in Electric Vehicles

World Electric Vehicle Journal
A bidirectional dc–dc converter is used to match the voltage levels between a low-voltage battery and a high-voltage traction machine in an electric vehicle.
Noah Dias, Anant J. Naik, Vinayak N. Shet   +2 more
doaj   +1 more source

Analysis and design of a high gain non-isolated zero current switching bidirectional DC–DC converter for electric vehicles

Automatika, 2019
This paper presents a dual inductor based current-fed bidirectional non-isolated DC–DC converter for energy storage applications. The main idea of this converter is to achieve a higher voltage conversion ratio by obtaining the operation of zero current ...
Veera Venkata Subrahmanya Kumar Bhajana, Pavel Drabek, Rajesh Thumma   +2 more
doaj   +1 more source