Results 101 to 110 of about 52,888 (310)

From Rigid to Soft Robotic Approaches for Neuroendoscopy

open access: yesAdvanced Robotics Research, EarlyView.
Robotic assistance has had minimal impact on deep intraventricular surgeries, where small‐scale, precision, and reduced invasiveness can contribute to improved patient outcomes. Emerging technologies in rigid, soft, and hybrid robotics are reviewed to identify the most promising mechanisms for deep brain navigation in addition to an attempt to identify
Kieran Gilday   +3 more
wiley   +1 more source

Design of FMCW Vital Sign Radar Using Frequency-Locked Loop

open access: yes, 2023
With the advancement of semiconductor technology, radar systems have been shrinking in size, leading to the expansion of radar applications. Beyond traditional military uses, radar technology has found widespread applications in fields such as automotive,
Chung, Nien-Hsuan
core  

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

open access: yesAdvanced Robotics Research, EarlyView.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino   +7 more
wiley   +1 more source

A novel fast lock-in phase-locked loop frequency synthesizer with direct frequency presetting circuit

open access: yes, 2006
This paper proposes a novel, fast lock-in, phase-locked loop (PLL) frequency synthesizer. The synthesizer includes a novel mixed-signal voltage-controlled oscillator (VCO) with a direct frequency presetting circuit.
Wu NJ   +6 more
core  

Controle digital de um condicionador de tensão alternada usando PLL para obtenção do sinal de referência [PDF]

open access: yes, 2007
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Engenharia Elétrica.O objetivo maior desse trabalho é realizar um estudo e projeto de um condicionador indireto de tensão alternada ...
Gomes, Carlos Eduardo Marcussi
core  

Self-biased Charge Pump PLL with Adaptive Bandwidth

open access: yes工程科学与技术, 2010
:Aiming at the problem that the restrictive bandwidth of the charge pump phase locked loop is restrictive, the self-biased charge pump phase locked loop with adaptive bandwidth whose bandwidth was modified dynamically according to the loop state was ...
Wei Jianjun, Li Chunchang, Kang Jichang
doaj  

Hybrid Carrier Tracking with Decoupled Local Filters in Multi-Frequency GNSS Receivers

open access: yesNavigation
The collaborative efforts of multi-frequency receivers have proven to be a significant advantage in the challenging environments of global navigation satellite system carrier tracking.
Rong Yang, Jihong Huang, Xingqun Zhan
doaj   +1 more source

Research on High Performance Frequency Synthesizer in Radio Frequency Integrated Circuits

open access: yesIEEE Access, 2018
With the popularization of broadcasting networks, telecommunication networks, and Internet triple play services, broadband requirements have been proposed for transceivers in wireless communication systems. Frequency source is an important part of the RF
Zhang Weijia
doaj   +1 more source

Strong‐Magnetic Flexible Composites for Magnetically Responsive Soft Robots

open access: yesAdvanced Robotics Research, EarlyView.
This perspective provides an overview of the performance mechanisms, preparation methods, and applications of strong magnetic flexible composite materials in soft actuators (such as gripping, movement, and sensing), and further explores current opportunities and challenges.
Wenwen Li   +4 more
wiley   +1 more source

Binary phase detector gain in bang-bang phase-locked loops with DCO jitter

open access: yes, 2010
Bang-bang phase-locked loops (BBPLLs) are hard nonlinear systems due to the nonlinearity introduced by the binary phase detector (BPD). In the presence of jitter, the nonlinear loop is typically analyzed by linearizing the BPD and applying linear ...
Gleeson, James   +5 more
core   +1 more source

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