Results 151 to 160 of about 931,300 (210)

Experimental Study of High Step-Up Quasi-Z-Source DC-DC Converter with Synchronous Rectification

Quasi-Z-source DC-DC converters have attracted research interest due to their numerous advantages in emerging applications. However, they suffer from relatively low efficiency.
Zaķis, Jānis, Chub, Andrii, Liivik, Liisa, Vinnikov, Dmitri   +3 more
core  

Targeted Muscle Reinnervation for Intuitive Prosthetic Control

Muscle &Nerve, EarlyView.
ABSTRACT The convergence of medical and technological advances has led to a substantial expansion of therapeutic approaches for patients with limb amputations. Targeted muscle reinnervation (TMR) is one of the strategies to improve control of bionic arms and has been applied for more than two decades. Through surgical rewiring of the nerves responsible
Nitay Maile, Laura Ferrante, Dario Farina, Ulla Al Dabbass, Oskar C. Aszmann, Vlad Tereshenko   +5 more
wiley   +1 more source

Soft-Switching Capability Analysis of a qZSI-Based DC/DC Converter

This paper analyzes the PWM control method for a new type of step-up DC/DC converters with galvanic isolation - the quasi-Z-source inverter (qZSI) based DC/DC converter.
Zaķis, Jānis, Roasto, Indrek, Vinnikov, Dmitri   +2 more
core  

Stair‐Climbing Wheelchairs for Enhanced Mobility: A Comprehensive Review of Fundamental Mechanisms, Design Concepts, and Performance Analysis

Journal of Field Robotics, EarlyView.
ABSTRACT People with physical disabilities face significant mobility challenges while climbing uneven surfaces and staircases. In these circumstances, traditional wheelchairs do not provide stable, safely controlled mobility, underscoring the importance of building superior stair‐climbing wheelchairs for both medical and infrastructure purposes.
Gopisetti Manikanta, S. M. Abhinandan, Anand Reddy, G. Chandana, Divya, P. Anil Kumar, Ch. Venkata Rao, Ashish Garg, Ravi C. Soni, Jogendra Kumar, Bhargav Akkinepally   +10 more
wiley   +1 more source

Design of a Novel Gripping Mechanism and Dual Manipulator Robotic System for Apple Harvesting Using Tractor

Journal of Field Robotics, EarlyView.
ABSTRACT The architecture of apple orchards can be converted to easier operation by implementing the use of a low‐cost, tractor‐mounted, dual manipulator based on a robotic harvesting system with lower degrees of freedom (DoF). To accurately avoid injuries by detecting apples, an efferent, real‐time vision system that includes a new gripping mechanism ...
R. M. Rasika D. Abeyrathna, Victor Massaki Nakaguchi, Zifu Liu, Tofael Ahamed   +3 more
wiley   +1 more source

Analysis of Operating Modes of the Step-Up Dc/Dc Converter with a Commutating LC-Filter

This paper presents an analysis of operating modes of the step-up DC/DC converter topology aimed for applications with widely changing input voltages. The topology consists of a LC-network coupled with a single phase inverter in the primary side and a ...
Zaķis, Jānis, Raņķis, Ivars, Vinnikov, Dmitri   +2 more
core  

Impact of sleep insufficiency and recovery on cancer development

Sleep Research, EarlyView.
Abstract Sleep plays a critical role in overall health, and modern lifestyles, such as shift work and late‐night activities, can significantly impact sleep condition. Insufficient sleep has been associated with various adverse health outcomes, including an increased risk of tumor development.
Xiaxi Li, Chuanyuan Li, Yi Zhang
wiley   +1 more source

A Compact Annular Electrostatic Clutch Joint: Dynamic Response Modeling and Time‐Sharing Control for Underactuated Robots

SmartBot, EarlyView.
Electrostatic clutches offer programmable variable stiffness for multi‐DOF robots, but their continuous motion is usually bottlenecked by spatial constraints and detachment delays. Here, the authors report a compact annular electrostatic clutch joint with a biphasic amplitude‐frequency modulation strategy to rapidly mitigate residual polarization ...
Haochen Yong, Jian Wang, Zhisheng Xia, Zhexuan Li, Han Ding, Zhigang Wu   +5 more
wiley   +1 more source

An Ergonomic Customizable Soft Robotic Glove Toward Personalized Hand Rehabilitation

SmartBot, EarlyView.
Soft robotic gloves for hand rehabilitation are often limited by poor fit and uneven pressure on the fingers. Here, the authors report an ergonomic all‐fabric glove whose dual‐action actuators are tailored to individual finger geometry by CNC heat sealing, with symmetrical chambers that distribute interface pressure more evenly. Weighing only 90 g, the
Rui Chen, Firman Isma Serdana, Domenico Chiaradia, Xianlong Mai, Elena Losanno, Gabriele Righi, Claudia De Santis, Federica Serra, Vincent Mendez, Cristian Camardella, Daniele Leonardis, Giulio Del Popolo, Silvestro Micera, Antonio Frisoli   +13 more
wiley   +1 more source

Sodium‐Based Battery Component Design: Imitating Lithium or Forging New Paths?

Small, EarlyView.
This Perspective elucidates the decisive yet underexplored impact of cation chemistry, Na+ vs. Li+ charge carriers, on the design, selection, and formulation of their corresponding battery systems, addressing common misconceptions and the pitfalls of overreliance on Li+ design principles. Leveraging the unique characteristics of Na+, it comprehensively
Xingxing Wang, Ziyu Song, Wenfang Feng, Moritz Schütte, Sascha Berg, Feng Cai, Viviane Maccio‐Figgemeier, Dirk Uwe Sauer, Stefano Passerini, Michel Armand, Zhibin Zhou, Egbert Figgemeier, Heng Zhang, Gebrekidan Gebresilassie Eshetu   +13 more
wiley   +1 more source