Results 81 to 90 of about 187,142 (275)

Reconfigurable, Temperature Resilient Phase‐Change Metasurfaces Fabricated via High Throughput Nanoimprinting Lithography

open access: yesAdvanced Science, EarlyView.
ABSTRACT The combination of metasurfaces with chalcogenide phase‐change materials is a highly promising route toward the development of multifunctional and reconfigurable nanophotonic devices. However, their transition into real‐world devices is hindered by several technological challenges. This includes, amongst others, the lack of large area photonic
Carlota de Ruiz de Galarreta   +8 more
wiley   +1 more source

ENERGETIC STUDIES ON DIFFERENT TiAlN CRYSTALLINE STRUCTURES USING DFT

open access: yesMomento, 2012
TiN, AlN and TiAlN were simulated using density functional theory (DFT), obtaining the Mulliken population analysis, electron total density and total energy.
Juan M. González   +4 more
doaj  

The Effect of Type and Location of a Phase Change Material (PCM) Layer in a Building Wall on Energy Consumption using Numerical Simulation [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2019
Phase Change Materials (PCMs) have been the subject of many researches in recent years due to the storage and release of energy at low temperature ranges.
Arezoo Soleimani Dashtaki   +2 more
doaj  

Multifunction audio digitizer for communications systems [PDF]

open access: yes, 1971
Digitizer accomplishes both N bit pulse code modulation /PCM/ and delta modulation, and provides modulation indicating variable signal gain and variable sidetone.
Monford, L. G., Jr.
core   +1 more source

Single‐Crystal PZT‐Driven Organic Piezo‐Phototronic Adaptive Transistors Toward Advanced Spatiotemporal Visual Computing

open access: yesAdvanced Science, EarlyView.
Here, we propose a single‐crystal PZT‐based piezo‐phototronic organic adaptive memory transistor (OAMT), achieving a record memory window capacity factor (γ) of 0.87 at a low SS of 200 mV/decade via efficient multi‐field control. The device achieves a high recognition accuracy ∼ 90% in neuromorphic simulations, demonstrates robust fault tolerance under
Chenhao Xu   +8 more
wiley   +1 more source

2D Metal‐Organic Frameworks for High‐Performance Solid‐State Electrolytes: A Comprehensive Review

open access: yesAdvanced Science, EarlyView.
In this review, we elucidate the intrinsic advantages, synthetic methodologies, structural characteristics, ion‐transport mechanisms and performance optimization strategies while highlighting representative material systems and applications of 2D MOFs for electrolyte applications.
Changchun Ai   +8 more
wiley   +1 more source

ENHANCEMENT OF CODE DIVISION MULTIPLE ACCESS (CDMA) WITHIN THE GSM SYSTEM IN IRAQ

open access: yesMağallaẗ Al-kūfaẗ Al-handasiyyaẗ
Despite the widespread adoption of Global System for Mobile Communications (GSM) in Iraq, the network's capacity and performance limitations have become increasingly apparent, particularly in urban areas with high user density. Currently, LTE (4G) is the
Nabil Abdulwahab Abdulrazaq Baban
doaj   +1 more source

A Photothermal‐Responsive PRP‐Loaded Hydrogel Engineered With Composite Nanobottle for Controllable Delivery of Growth Factors and Multifunctional Therapy of Diabetic Wounds

open access: yesAdvanced Science, EarlyView.
A photothermal‐responsive engineered platelet‐rich plasma hydrogel (CNB‐ePRP) incorporated with thrombin‐functionalized composite nanobottle was developed, which enables in situ PRP activation, on‐demand growth factor release, multifunctionality, and personalized antimicrobial loading for treatment of diabetic wounds. The CNB‐ePRP hydrogel demonstrated
Wen‐Qiang Qu   +8 more
wiley   +1 more source

Improving the charging rate and energy recovery of triplex tube heat storage-based pcm with mono/hybrid nanoparticles [PDF]

open access: yesEngineering and Technology Journal
Latent thermal energy storage systems are widely utilized to match the inequality between heat supply and demand. Despite these systems' wide range of uses in various applications, their high potential is limited by the slow charging rate.
Ibrahim Sadiq   +2 more
doaj   +1 more source

Design of Optical Transducer for Recognition of Biomolecular Interactions between Bacterial Lipopolysaccharides and Amino Acids

open access: yesAdvanced Science, EarlyView.
A deep comprehension of biomolecular phenomena at interfaces is significant with their fundamental and practical importance. Our experimental and theoretical investigations reveal that specific amino acids (glutamic acid and aspartic acid) exhibit an orientational coupling with liquid crystals, which can recognize and optically report the interfacial ...
Yena Choi   +10 more
wiley   +1 more source

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