Results 81 to 90 of about 184,389 (296)

Cylindrical dielectric resonator antenna array

open access: yesElectronics Letters, 1995
A 1/spl times/2 linear cylindrical resonator antenna array is studied experimentally. The DR antenna is excited by an aperture-coupled source and is operated at the fundamental broadside TM/sub 110/ mode. The input impedance, the radiation pattern, the antenna gain, and the mutual coupling of the array are studied.
K.Y. Chow   +3 more
openaire   +1 more source

Transfer Printing and Reconfiguration of Soft Electronics Using Digital Microfluidics and Laser Machining

open access: yesAdvanced Functional Materials, EarlyView.
This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen   +15 more
wiley   +1 more source

Magnetic light

open access: yes, 2003
In this paper we report on the observation of novel and highly unusual magnetic state of light. It appears that in small holes light quanta behave as small magnets so that light propagation through such holes may be affected by magnetic field.
Anatoly V. Zayats   +11 more
core   +2 more sources

Dual‐Mode Magnetic Elastomer for On‐Demand Motion and Degradation

open access: yesAdvanced Functional Materials, EarlyView.
A dual‐mode magnetic elastomer is introduced, enabling DC field‐driven programmable actuation and AC field‐driven magnetothermal degradation. GHz‐range magnetic fields generate ultrafast heating of magnetic nanoparticles that activates cleavage of the silicone elastomer matrix.
Jieun Han   +13 more
wiley   +1 more source

Errores en medidas de campo cilíndrico próximo [PDF]

open access: yes, 2008
An approximate general formula to calculate the directivity of an array of antennas by a cylindrical near field acquisition is proposed. We demonstrate the role of and scan area truncation effects. The derivation is based on the theory of cylindrical
Castelo Boso, Alcino   +1 more
core  

Near term measurements with 21 cm intensity mapping: neutral hydrogen fraction and BAO at z<2

open access: yes, 2010
It is shown that 21 cm intensity mapping could be used in the near term to make cosmologically useful measurements. Large scale structure could be detected using existing radio telescopes, or using prototypes for dedicated redshift survey telescopes ...
A. van Ardenne   +5 more
core   +1 more source

Computational Modeling Meets 3D Bioprinting: Emerging Synergies in Cardiovascular Disease Modeling

open access: yesAdvanced Healthcare Materials, EarlyView.
Emerging advances in three‐dimensional bioprinting and computational modeling are reshaping cardiovascular (CV) research by enabling more realistic, patient‐specific tissue platforms. This review surveys cutting‐edge approaches that merge biomimetic CV constructs with computational simulations to overcome the limitations of traditional models, improve ...
Tanmay Mukherjee   +7 more
wiley   +1 more source

Application of anamorphic optics system and a high-speed line scan photodetector in an open-type relative encoder

open access: yesНаучно-технический вестник информационных технологий, механики и оптики
Optical encoders based on imaging optical systems and two-dimensional sensor arrays have shown substantial potential for reducing measurement errors through the use of modern image processing algorithms.
V. N. Kuznetsov   +4 more
doaj   +1 more source

Experimental demonstration of a light-ray-direction-flipping METATOY based on confocal lenticular arrays

open access: yes, 2009
We show, theoretically and experimentally, that a sheet formed by two confocal lenticular arrays can flip one component of the local light-ray direction.
Blair, Michael   +6 more
core   +2 more sources

Fluorescent Nanosensor for Indole‐3‐Propionic Acid Detection in Gut Health Monitoring

open access: yesAdvanced Healthcare Materials, EarlyView.
This work introduces a fluorescent nanosensor system with two optical modalities for detection of indole‐3‐propionic acid (IPA) gut metabolite: (1) blue‐emitting cationic conjugated polyelectrolyte (CP3) and (2) near‐infrared (NIR)‐emitting CP3‐wrapped single‐walled carbon nanotube (SWNT).
Mervin Chun‐Yi Ang   +15 more
wiley   +1 more source

Home - About - Disclaimer - Privacy