Results 111 to 120 of about 4,757,560 (195)

High‐Conductivity Active Interface Layer for Active Lithium Reservoir in Micro‐Silicon‐Based All‐Solid‐State Batteries

open access: yesAdvanced Science, EarlyView.
A self‐generated Li–Si alloy interface transforms carbon‐free micro‐silicon into a kinetically accelerated and mechanically resilient anode for sulfide‐based all‐solid‐state batteries. Serving simultaneously as an active lithium reservoir and conductive interface, the alloy layer compensates lithium loss while accommodating volume changes, enabling 89 ...
Ziqing Wang   +6 more
wiley   +1 more source

Non-compressive wideband spectrum sensing with sub-Nyquist sampling rates

open access: yes, 2013
In this paper, we propose a low complexity and reliable wideband spectrum sensing technique that operates at sub-Nyquist sampling rates. Unlike the majority of other sub-Nyquist spectrum sensing algorithms that rely on the Compressive Sensing (CS ...
Ahmad, BI, Tarczynski, A, ,, Al-Ani, M
core  

SUMMeR: Sub-Nyquist MIMO Radar

open access: yes, 2018
Multiple-input multiple-output (MIMO) radar exhibits several advantages with respect to the traditional radar array systems in terms of flexibility and performance. However, MIMO radar poses new challenges for both hardware design and digital processing.
Cohen, Deborah   +7 more
core   +1 more source

Semi‐Artificial Photosynthesis Enables Light‐Driven Biomanufacturing in Non‐Photosynthetic Bacteria

open access: yesAdvanced Science, EarlyView.
A non‐invasive strategy exploits endogenous H2S metabolism in B. subtilis to drive in situ CdS biomineralization, enabling tight bio‐abiotic contact without genetic modification. Light harvested by the biomineralized nanoparticles powers NADPH regeneration, elevating 2’‐fucosyllactose and surfactin titres two‐ to three‐fold.
Jie Zheng   +8 more
wiley   +1 more source

Reconstruction of Harmonic and Transient Electrical Signals Through Compressed Sensing Technique

open access: yesIEEE Access
Harmonic, dynamic transient, and electromagnetic induction signals can propagate at very high speeds through the electrical network, causing insulation breakdown damage to system equipment or severely damaging sensitive electronic control devices ...
Oscar Vite   +2 more
doaj   +1 more source

Skyrmion Bubbles by Design in a Centrosymmetric Kagome Magnet

open access: yesAdvanced Science, EarlyView.
Chemical tuning of magnetocrystalline anisotropy in the centrosymmetric kagome magnet TmMn6Sn6 is shown to drive a spin reorientation transition via an intermediate magnetic fan state and to stabilize an emergent skyrmion bubble lattice. Four‐dimensional cryogenic Lorentz scanning transmission electron microscopy confirms the nanoscale texture ...
Mohamed El Gazzah   +6 more
wiley   +1 more source

Metasurface‐Based Multidimensional Light‐Field Manipulation: From Technologies to Applications

open access: yesAdvanced Science, EarlyView.
Multidimensional metasurfaces enable versatile manipulation of multiple optical degrees of freedom, including phase, amplitude, polarization, wavelength, and orbital angular momentum. This review summarizes their fundamental mechanisms, emerging strategies for multidimensional light‐field control, and key applications in optical computing, imaging ...
Heliang Yin   +6 more
wiley   +1 more source

Formation‐Stage Interfacial Regulation of δ‐MnO2 Enables Stable and Reversible Aqueous Zn‐Ion Storage

open access: yesAdvanced Science, EarlyView.
Precursor‐embedded Fe regulates the nucleation and growth of δ‐MnO2, enabling a more accessible and stable Zn‐storage interface with accelerated kinetics and suppressed Mn dissolution, while preserving the intrinsic Mn redox chemistry. ABSTRACT Layered δ‐MnO2 is a promising cathode for aqueous zinc‐ion batteries, yet its practical application remains ...
Fanghua Liang   +10 more
wiley   +1 more source

Performance of IRS-Assisted MIMO THz System Using Compressed Sensing-Based Measurement Matrix

open access: yesIEEE Access
Terahertz (THz) communications is a new frontier for the sixth-generation wireless systems due to availability of large bandwidth that supports terabits per second data rates.
Vaishali Sharma   +5 more
doaj   +1 more source

Intentional Aliasing Method to Improve Sub-Nyquist Sampling System

open access: yes, 2018
A modulated wideband converter (MWC) has been introduced as a sub-Nyquist sampler that exploits a set of fast alternating pseudo random (PR) signals. Through parallel analog channels, anMWC compresses a multiband spectrum by mixing it with PR signals in ...
Sanghun Im   +5 more
core   +1 more source

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