Results 131 to 140 of about 110,471 (254)

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

GuideCall: affordable and trustworthy video call-based remote assistance for people with visual impairments

open access: yes, 2019
Thesis (M.S.)-- Wichita State University, College of Engineering, Dept. of Electrical Engineering and Computer ScienceBlind and Visually Impaired (BVI) individuals often face many challenges while performing daily tasks or exploring new places. Assistive
Ravindran, Naveen Mukundan
core  

Tunable Extraordinary Optical Transmission in the Long‐Wavelength Infrared Range Using Electrostatic MEMS Actuation

open access: yesAdvanced Materials Technologies, EarlyView.
A MEMS‐integrated metamaterial filter enables continuous, low‐voltage spectral tuning in the long‐wavelength infrared (LWIR). The device employs extraordinary optical transmission in a dual suspended metasurface stack, where electrostatic actuation precisely controls the intermembrane air gap.
Oleg Bannik   +6 more
wiley   +1 more source

Galinstan Liquid Metal/Polyurethane Composite as a Multifunctional Stretchable Electrode and Piezoresistive Strain Sensor With Minimal Drift

open access: yesAdvanced Materials Technologies, EarlyView.
Liquid metal additives are processed in elastomer host resulting in highly conductive and stretchable composites. The material functions as a piezoresistive sensor with minimal drift, low stiffness, and enhanced operating range. The film can replace wires to charge a mobile phone at ∼350% strain and monitors bodily motion in real‐time via a portable ...
Patryk Wojciak   +3 more
wiley   +1 more source

Assistance as a Service

open access: yes, 2019
This paper reviews currently available hardware and software for remote assistance during transformer maintenance and provides a newly created business model.
Thomas Schirgi, Schirgi, Thomas
core  

Graphene‐Interfaced Stretchable Sweat Patch for Multiplexed Electrochemical Monitoring of IL‐6, Glucose, and Calcium Ions

open access: yesAdvanced Materials Technologies, EarlyView.
Flexible sweat sensor patch integrating graphene‑interfaced gold microelectrodes functionalized with bio‑receptors and ion‑selective membrane, coupled with a capillary‑driven microfluidic layer and portable potentiostat electronics for multiplexed monitoring of inflammatory, metabolic, and electrolyte biomarkers in microliter sweat volumes.
Roomia Memon   +4 more
wiley   +1 more source

Identification and evaluation of the losses occurring in a solar PV system under real field conditions for rural electrification in Humla

open access: yes, 2009
Nepal, which is situated along the solar belt of 30° northern latitude, is blessed with an average of 300 days of sunshine a year. Over the last decade, private companies and local NGOs/INGOs have been increasingly providing electricity services through ...
Pandey, R., Thakuri, S., Zahnd, A.
core  

3D Remote Assistance for NDT Inspections

open access: yes
In this work, we present a system architecture that is especially designed for remote ultrasound testing inspections (UT). The system itself is realized using a real-time session service and a web service based on a REST API (REST: Representational State
Holtmannspötter, Jens   +3 more
core   +1 more source

Magnetic Droplet Manipulation on Open Surfaces

open access: yesAdvanced Materials Technologies, EarlyView.
Recent advances in the manipulation of magnetic droplets demonstrate various manipulations on open surfaces, including transport, splitting, merging, and force‐controlled motion, enabled by magnetic particles and external fields. ABSTRACT Manipulation of liquids on a smaller scale enables applications in various fields, particularly diagnostics and ...
Robab Jahangir, Vahid Nasirimarekani
wiley   +1 more source

Remote pilotage and enhanced navigation assistance

open access: yes, 2000
The drive to reduce costs and to ensure that ports can stay open to the maximum extent in all weathers has given impetus to the search for more flexible vessel traffic management; something that current advances in technology make it possible to ...
Hadley, M.A., Hadley, Michael Anthony
core  

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