Results 101 to 110 of about 66,003 (314)

Toward Wireless Implantable Robotic Systems Driven by Magnetic Field for Personalized Therapy

open access: yesAdvanced Robotics Research, EarlyView.
Robotic materials are playing an increasingly vital role in enabling sensing and actuation at small scales. This perspective highlights recent advances in magnetic materials and magnetically actuated devices for wireless sensing, actuation, and energy harvesting toward implantable robotic systems for closed‐loop therapy.
Yusheng Wang, Ruijian Ge, Xiaoguang Dong
wiley   +1 more source

Single Phase Passive Rectification Versus Active Rectification Applied to High Power Stirling Engines [PDF]

open access: yes
Stirling engine converters are being considered as potential candidates for high power energy conversion systems required by future NASA explorations missions. These types of engines typically contain two major moving parts, the displacer and the piston,
Birchenough, Arthur G., Santiago, Walter
core   +1 more source

Coordinated voltage regulation of hybrid AC/DC medium voltage distribution networks [PDF]

open access: yes, 2017
In a hybrid AC/DC medium voltage distribution network, distributed generations (DGs), energy storage systems (ESSs), and the voltage source converters (VSCs) between AC and DC lines, have the ability to regulate node voltages in real-time.
Chen, Ying   +4 more
core   +3 more sources

Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots

open access: yesAdvanced Robotics Research, EarlyView.
Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley   +1 more source

Magnetically Integrated Multiport Converter for Energy Management in DC-Powered Buildings

open access: yesEletrônica de Potência
Multiport converters have gained attention in the last few years as a key component for dc-powered buildings, more electric aircraft, and maritime applications.
Edivan Laercio Carvalho   +4 more
doaj   +1 more source

Power conversion architecture for grid interface at high switching frequency [PDF]

open access: yes, 2014
This paper presents a new power conversion architecture for single-phase grid interface. The proposed architecture is suitable for realizing miniaturized ac-dc converters operating at high frequencies (HF, above 3 MHz) and high power factor, without the ...
Lim, Seungbum   +2 more
core   +1 more source

Challenges and Future Directions in Assessing the Quality and Completeness of Advanced Materials Safety Data for Re‐Usability: A Position Paper From the Nanosafety Community

open access: yesAdvanced Sustainable Systems, EarlyView.
Nanosafety data provide a guiding example for establishing best practices in data management, aligning with FAIR principles and quality criteria. This review explores existing quality assessment approaches for reliability, relevance, and completeness, emphasizing the need for harmonization and adaptation to nanomaterials and advanced materials. The aim
Verónica I. Dumit   +43 more
wiley   +1 more source

AC-DC Cuk Converter: A State-of-the-Art topological review

open access: yesEnergy Conversion and Management: X
AC-DC converters, which transform alternating current (AC) into controlled direct current (DC), are key instruments for systems requiring stable and efficient power conversion.
Istiak Ahmed   +6 more
doaj   +1 more source

Mitigation of voltage sag, swell and power factor correction using solid-state transformer b

open access: yesAlexandria Engineering Journal, 2014
This paper presents a novel topology of solid-state transformer (SST). In the design process, the AC/DC, DC/AC and AC/AC converters have been integrated to achieve higher efficiency. To obtain higher efficiency from other SST with DC-link topologies, the
M.R. Banaei, E. Salary
doaj   +1 more source

Development of DC/AC power converters for applications requiring high efficiency.

open access: yes, 2016
Silicon-based power devices have dominated power electronics applications over the last decades. Research and development in microelectronics have pushed the performance of power devices to face some fundamental limitations of silicon material. Wide band-gap semiconductors, such as silicon carbide, offer a solution to the pressing energy efficiency ...
openaire   +2 more sources

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