Results 61 to 70 of about 9,782 (244)

A Portable Soft Robotic Glove with Fully Functional Thumb Assistance for Complex Dexterous Fine Motor Skills

open access: yesAdvanced Science, EarlyView.
A portable, sensorized, and controlled dexterous thumb‐enhanced glove helps stroke survivors swipe phones, twist caps, and perform other tasks. It is based on a powerful continuously, segmented origami dual chamber actuator to achieve active thumb CMC and MCP joint assistance and passively extend the IP joint.
Disheng Xie   +10 more
wiley   +1 more source

An Improved Modulation Strategy Combining Phase Shifted PWM and Phase Disposition PWM for Cascaded H-Bridge Inverters

open access: yesEnergies, 2017
: Multilevel modulation strategy is an important factor affecting the output performance of multilevel converters. In this paper, the relationship between phase-shifted pulse width modulation (PWM) and phase disposition PWM is analyzed, and then an ...
Muxuan Xiao, Qianming Xu, Honglin Ouyang
doaj   +1 more source

Pengendalian Dosis Inframerah pada Alat Terapi Menggunakan Pulse Width Modulation(PWM) [PDF]

open access: yesSetrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer, 2017
Rutinitas dapat mempengarui kestabilan tubuh seseorang yang bisa menimbulkan penyakit sehingga dapat mempengaruhi aktifitas seseorang. Sakit pada umumnya ditandai dengan rasa nyeri yang akan membawakan penderita pergi ke dokter untuk mendapatkan informasi diagnosa dan penyembuhannya.
Dedi Nurcipto, Gutama Indra Gandha
openaire   +1 more source

A Multimodal Haptic Feedback Interface with Thin‐Film Compliant Mechanism

open access: yesAdvanced Science, EarlyView.
Multimodal haptic devices can trigger different mechanoreceptors, enabling richer haptic information. This study presents an electromagnetic multimodal haptic device capable of delivering indentation, stretch, and vibration stimuli. The device is enabled by a novel polymer thin‐film compliant mechanism that provides high translational compliance along ...
Jingjing Wan   +15 more
wiley   +1 more source

Analisis Harmonik dan Faktor Kerja pada Penyearah Pulse Width Modulation (PWM) dan Penyearah Filter Hibrid [PDF]

open access: yes, 2022
Pada saat ini penyearah adalah sumber utama harmonisa. Dari sisi pengendalian, secara garis besar ada tiga jenis penyearah, yaitu: (1) penyearah tak terkendali (dengan dioda); (2) penyearah terkendali (dengan thyristor); (3) penyearah Pulse Width ...
Sudirman Syam, Sri Kurniati
core   +1 more source

Improvement of the low gray-level expression using hybrid pulse width modulation and pulse amplitude modulation driving method for a micro light-emitting diode pixel circuit

open access: yesJournal of Information Display, 2022
A novel hybrid pulse width modulation (PWM) and pulse amplitude modulation (PAM) (HPP) driving method is proposed for improving the low gray-level expression of a micro light-emitting diode (µLED) display.
Yong-Hoo Hong   +3 more
doaj   +1 more source

Wearable Electro‐Thermal Haptic Stimulator Driven by a Self‐Powered Tactile Sensor for Realistic Stimulus Replication

open access: yesAdvanced Science, EarlyView.
We present a stimulus‐replicating system combining a tactile sensor with a wearable Peltier thermotactile module and concentric electrotactile electrode. Signals encoding pressure and temperature drive the stimulators to reproduce mechano‐thermal cues on the skin. AlN/PDMS encapsulation and SA/LA PSA ensure mechanical compliance and thermal efficiency.
Ey‐In Lee   +4 more
wiley   +1 more source

PWM Control of a Buck Converter with an Amorphous Core Coil [PDF]

open access: yes, 2011
Pulse-width modulation is widely used to control electronic converters. One of the most topologies used for high DC voltage/low DC voltage conversion is the Buck converter.
Morón Fernández, Carlos   +3 more
core   +1 more source

A Chaotic Pulse-Time Modulation Method for Digital Communication

open access: yesAbstract and Applied Analysis, 2012
We present and investigate a method of chaotic pulse-time modulation (PTM) named chaotic pulse-width-position modulation (CPWPM) which is the combination of pulse-position-modulation (PPM) and pulse-width modulation (PWM) with the inclusion of chaos ...
Nguyen Xuan Quyen   +2 more
doaj   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

open access: yesAdvanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

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