Results 91 to 100 of about 568,484 (304)
Role of anticausal inverses in multirate filter-banks. I. System-theoretic fundamentals [PDF]
, 1995 In a maximally decimated filter bank with identical decimation ratios for all channels, the perfect reconstructibility property and the nature of reconstruction filters (causality, stability, FIR property, and so on) depend on the properties of the ...
Chen, Tsuhan, Vaidyanathan, P. P.
core +1 more source
Ultrahigh‐Order Harmonic Mode‐Locked Optoelectronic Oscillator
Laser &Photonics Reviews, EarlyView.This article demonstrates a record‐breaking microwave frequency comb generator using an ultrahigh‐harmonic‐order mode‐locked optoelectronic oscillator. By integrating dual recirculating loops into a low‐coherence system, the researchers achieved a harmonic order of 956 with superior noise suppression.
Zhuoran Wang +3 more
wiley +1 more source
Laser &Photonics Reviews, EarlyView.Bi3+‐doped Cs2SnCl6 nanocrystals are engineered to deliver highly temperature‐responsive self‐trapped exciton emission, achieving record thermal sensitivity at elevated temperatures. A temperature‐induced dual‐STE excited state landscape enables reversible thermochromism, while a dual‐parameter calibration combining fluorescence lifetime and CIE‐y ...
Sujun Ji +16 more
wiley +1 more source
System-and-structural features of the phytobiotaof the fir-beech forests of the Pokuttia Carpathians
Наукові праці Лісівничої академії наук УкраїниThe article presents the results of the system-structural analysis of the flora of fir-beech forests of the low mountain terrain of the Pokuttia Carpathians.
Myroslava Soroka +4 more
doaj +1 more source
Organosolv Fractionation of Softwood Biomass for Biofuel and Biorefinery Applications
Energies, 2017 Softwoods represent a significant fraction of the available lignocellulosic biomass for conversion into a variety of bio-based products. Its inherent recalcitrance, however, makes its successful utilization an ongoing challenge.
Christos Nitsos +2 more
doaj +1 more source
The magnetic field in the NGC 2024 FIR 5 dense core [PDF]
, 2010 We used the Submillimeter Array (SMA) to observe the thermal polarized dust emission from the protostellar source NGC 2024 FIR 5. The polarized emission outlines a partial hourglass morphology for the plane-of-sky component of the core magnetic field ...
Alves, Felipe de O. +4 more
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Nordic Journal of Botany, EarlyView.Melliferous vegetation in Bulgaria plays a key role in maintaining biodiversity and providing ecosystem services such as pollination. The diversity of melliferous vegetation is essential for the sustainable development of honeybee Apis mellifera colonies.
Nikolay Miroslavov Nikolov +2 more
wiley +1 more source
Drvna IndustrijaWood undergoes degradation and aging due to various physical and biological factors throughout its lifespan. Among these factors, environmental conditions such as relative humidity, temperature, rainfall, and UV radiation play a crucial role in the ...
Minel Ahu Kara Alasalvar +4 more
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Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2004 The work deals with dendrochronological analysis of the roof truss of parish church in the locality of Stare Hobzi. The dendrochronological analysis gave an integrated view on a complicated development of this building and it helped us to restore the ...
Michal Rybníček
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Bulletin of popular information - Arnold Arboretum, Harvard University., 1928 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources