Results 21 to 30 of about 6,338 (217)

Stabilizing Cationic Palladium Single‐Atom Sites on Heteroatom‐Doped Carbon for Selective Hydrogen Peroxide Electrosynthesis

open access: yesAdvanced Functional Materials, EarlyView.
In this research, it is demonstrated that dual nitrogen and sulfur doping in hollow carbon spheres creates a tunable coordination environment that stabilizes cationic Pd single atoms as robust organometallic complexes, enabling high selectivity and stability for electrochemical hydrogen peroxide production under harsh acidic and peroxide‐rich ...
Guilherme V. Fortunato   +16 more
wiley   +1 more source

Cross-Layer Optimization of DVB-T2 System for Mobile Services

open access: yesInternational Journal of Digital Multimedia Broadcasting, 2010
Mobile broadcast services have experienced a strong boost in recent years through the standardization of several mobile broadcast systems such as DVB-H, ATSC-M/H, DMB-T/H, and CMMB. However, steady need for higher quality services is projected to surpass
Lukasz Kondrad   +4 more
doaj   +1 more source

Distinct effects of complement C4A and C4B copy number in Systemic Sclerosis serological and clinical subtypes

open access: yesArthritis &Rheumatology, Accepted Article.
Objective Complement component 4 (C4), encoded by C4A and C4B within the major histocompatibility complex (MHC) on chromosome 6, regulates the immune response and clears immune complexes. Variable copy number (CN) of C4 genes and retroviral HERV‐K element influence its function.
Javier Martínez‐López   +23 more
wiley   +1 more source

Evaluation of Different Range-Doppler Processing Techniques for OFDM-Based DVB-T2 Passive Radar

open access: yesIEEE Access
There are many papers investigating the processing stages required for the first-generation terrestrial Digital Video Broadcast, DVB-T, and the advantages and disadvantages of each technique.
Stephen Paine   +5 more
doaj   +1 more source

Learning Strategies from Nature's Blueprint to Cyclic Carbonate Synthesis

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
The development of sustainable synthetic methods for cyclic carbonates draws inspiration from nature, focusing on eco‐friendly processes and renewable resources like CO2 and biomass. This review explore various CO2 activation mechanisms, green chemistry principles, and green catalysts.
Erika Saccullo   +4 more
wiley   +1 more source

The Use of the Reassignment Technique in the Time-Frequency Analysis Applied in VHF-Based Passive Forward Scattering Radar

open access: yesSensors, 2020
This paper presents the application of the time-frequency (TF) reassignment technique in passive forward scattering radar (FSR) using Digital Video Broadcasting – Terrestrial (DVB-T) transmitters of opportunity operating in the Very High Frequency (VHF ...
Marek Płotka   +4 more
doaj   +1 more source

Nanoparticles in microdroplets: Recent advances in microfluidic generators for producing functional microbeads

open access: yesDroplet, EarlyView.
Functional hybrid microbeads with electrical, magnetic, and/or optical responsiveness have emerged as versatile platforms for biotechnology. This review highlights recent advances in microfluidic technologies for producing such microbeads, with a focus on incorporating functional nanoparticles in microdroplet systems.
  Bayinqiaoge   +2 more
wiley   +1 more source

Statistical Time-Frequency Multiplexing of HD Video Traffic in DVB-T2

open access: yesInternational Journal of Digital Multimedia Broadcasting, 2009
Digital video broadcast-terrestrial 2 (DVB-T2) is the successor of DVB-T standard that allows a two-dimensional multiplexing of broadcast services in time and frequency domains.
Mehdi Rezaei   +2 more
doaj   +1 more source

PERLUASAN JANGKAUAN SIARAN STASIUN PEMANCAR DIGITAL TVRI JAWA BARAT DENGAN SISTEM SINGLE FREQUENCY NETWORK (SFN)

open access: yesJurnal Ilmiah SINERGI, 2017
Implementasi penyiaran televisi digital dengan menggunakan media teresterial telah menjadi kenyataan di Indonesia. Sistem penyiaran televisi digital (Digital Video Broadcast over Terrestrial / DVB-T) memungkinkan untuk penggunaan Single Frequency Network
Trya Agung Pahlevi
doaj   +1 more source

Mechanism of Alfalfa in Enhancing Goose Egg Yolk Flavor: An Analysis Based on Metabolomics and Quantitative Lipidomics

open access: yesFood Frontiers, EarlyView.
ABSTRACT Organic egg production requires daily provision of coarse feed, fresh or dried forage, and silage to poultry. This study employed flavoromics, metabolomics, and quantitative lipidomics to investigate the effects of replacing 0% (CK), 10% (T10), and 20% (T20) of the basal diet of laying geese with alfalfa (Medicago sativa L.) on the sensory ...
Baochao Bai   +9 more
wiley   +1 more source

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