Results 81 to 90 of about 993,230 (345)

Organic Electrochemical Transistor Channel Materials: Copolymerization Versus Physical Mixing of Glycolated and Alkoxylated Polymers

open access: yesAdvanced Functional Materials, EarlyView.
This work discusses the use of blended channel materials in OECTs. It explores how mixing glycolated and alkoxylated polymers in various ratios offers a simpler and more efficient route to tuning OECT properties. The performance of the polymer blends is compared to the corresponding copolymers, demonstrating similar OECT characteristics, swelling ...
Lize Bynens   +14 more
wiley   +1 more source

Antimultipath communication by injecting tone into null in signal spectrum [PDF]

open access: yes, 1987
A transmitter for digital radio communication creates a null by balanced encoding of data modulated on an RF carrier, and inserts a calibration tone within the null. This is accomplished by having the calibration tone coincide in phase and frequency with
Davarian, Faramaz
core   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

open access: yesAdvanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal   +10 more
wiley   +1 more source

LEO Satellite Beam Hopping for Power Consumption Minimization at Different Elevation Angles

open access: yesIEEE Open Journal of the Communications Society
Low Earth orbit (LEO) satellite communication promises to bridge the digital divide. As satellite payload is limited, methods such as beam hopping techniques are necessary to ensure that the scarce resources are used efficiently. Current literature lacks
Agnes Fastenbauer   +4 more
doaj   +1 more source

Beam loading

open access: yes, 2013
We begin by giving a description of the radio-frequency generator-cavity-beam coupled system in terms of basic quantities. Taking beam loading and cavity detuning into account, expressions for the cavity impedance as seen by the generator and as seen by ...
Gamp, Alexander
core   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

open access: yesAdvanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong   +16 more
wiley   +1 more source

THE INFLUENCE OF DIGITAL PLATFORM MOVIES ON SHAPING THE PERCEPTIONS OF THE JORDANIAN AUDIENCE TOWARDS TOURIST DESTINATIONS [PDF]

open access: yesGeo Journal of Tourism and Geosites
Digital movie platforms are one of the most prominent modern entertainment mediums that play an increasing role in influencing audience perceptions on various topics, including tourist destinations.
Amer Khaled AHMAD*   +4 more
doaj   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song   +4 more
wiley   +1 more source

Automation of Multi-Class Microscopy Image Classification Based on the Microorganisms Taxonomic Features Extraction

open access: yesJournal of Imaging
This study presents a unified low-parameter approach to multi-class classification of microorganisms (micrococci, diplococci, streptococci, and bacilli) based on automated machine learning.
Aleksei Samarin   +9 more
doaj   +1 more source

A Wideband, Four-Element, All-Digital Beamforming System for Dense Aperture Arrays in Radio Astronomy [PDF]

open access: yes, 2010
Densely-packed, all-digital aperture arrays form a key area of technology development required for the Square Kilometre Array (SKA) radio telescope. The design of real-time signal processing systems for digital aperture arrays is currently a central ...
Adami, Kristian Zarb   +2 more
core  

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