Results 51 to 60 of about 72,738 (296)
Development of a New Technique for Measurement of Dielectric Properties of Oil Palm Fruits [PDF]
, 2003 The thesis describes the development of a low cost open-ended coaxial sensor for the determination of both complex permittivity and moisture content of the oil palm fruits of various degree of fruit ripeness.
You, Kok Yeow
core
A computational model for path loss in wireless sensor networks in orchard environments. [PDF]
, 2014 A computational model for radio wave propagation through tree orchards is presented. Trees are modeled as collections of branches, geometrically approximated by cylinders, whose dimensions are determined on the basis of measurements in a cherry orchard ...
Anastassiu, Hristos T +6 more
core +3 more sources
Rational Device Design and Doping‐Controlled Performance in Fast‐Response π‐Ion Gel Transistors
Advanced Functional Materials, EarlyView.π‐Ion gel transistors (PIGTs) achieve extraordinary transconductance and stability through device configuration optimization, high‐mobility conjugated polymer selection, and hole scavenger doping. The optimized PIGTs maintain performance on flexible substrates, enabling printed, fast‐response, and wearable electronics.
Masato Kato +10 more
wiley +1 more source
SensorsWe developed a measurement setup and protocol reliably relating complex permittivity measurements with tissue characterization and specific histological features. We measured 148 fresh human tissue samples across 14 tissue types at 51 frequencies ranging
Sandra Lopez-Prades +4 more
doaj +1 more source
Environmental electromagnetic characterization framework for wearable antenna materials [PDF]
, 2014 In wearable antenna design, the prevailing atmospheric conditions can have a significant effect on the electromagnetic properties of the fabric substrate and hence the resulting antenna performances. Therefore, an accurate characterization of this effect
Agneessens, Sam +4 more
core +2 more sources
Advanced Functional Materials, EarlyView.Ferroelectricity in thin HfO2‐based films offers great possibilities for next‐generation neuromorphic memory devices. There, the response to subcoercive voltage signals is driven by the movement of mobile interfaces and their interaction with crystal defects – a yet rather unexplored aspect, which we shed light on and gain new insights into the complex
Maximilian T. Becker +11 more
wiley +1 more source
Noniterative complex permittivity retrieval using calibration-independent waveguide measurements
Sensors and Actuators A: Physical, 2017 Abstract Calibration-independent nonresonant measurements can be employed to eliminate the need for calibration before microwave measurements. These methods generally assume that the location of the sample in its measurement cell is known after the sample is positioned or shifted within the cell and that the length of the measurement cell is known ...
Hasar, Ugur Cem, Kaya, Yunus
openaire +3 more sources
Advanced Functional Materials, EarlyView.A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park +3 more
wiley +1 more source
Measurement of Nonplanar Dielectric Samples Using an Open Resonator [PDF]
, 1987 Conventional microwave methods for measuring permittivity often utilize samples in flat sheet form. In practice, however, it is sometimes desirable to measure samples having curved surfaces, for example, parts of lenses or small radomes.
Chambers, B., Chan, W.F.P.
core
Advanced Functional Materials, EarlyView.Rational halogen mixing strategy was employed to shift the bandgap of Cs2PbBr2I2 from ultraviolet to visible region, enabling first realization of a visible‐light photodetector with this 2D layered Ruddlesden‐Popper perovskite material. Under illumination, light‐induced internal field forms and drives trap‐mediated persistent photoconductivity ...
Md Fahim Al Fattah +11 more
wiley +1 more source