Milled wood lignin (MWL), cellulolytic enzyme lignin (CEL), and enzymatic mild acidolysis lignin (EMAL) were isolated from different wood species and characterized by various techniques. The EMAL protocol offered gravimetric lignin yields 2-5 times greater than those of the corresponding MWL and CEL. The purities of the EMALs were 3.75-10.6% higher than those of their corresponding CELs, depend...

The composition and structure of lignin in different tissues-phellem (cork), phloem and xylem (wood)-of Quercus suber was studied. Whole cell walls and their respective isolated milled lignins were analyzed by pyrolysis coupled with gas chromatography/mass spectrometry (Py-GC/MS), two-dimensional nuclear magnetic resonance spectroscopy (2D-NMR) and derivatization followed by reductive cleavage ...

In this article, we consider waveform design for dual-function radar communication (DFRC) systems based on multiple-input–multiple-out (MIMO) arrays. To achieve better Rician target detection performance, use the relative entropy associated with formulated problem as metric. We also impose a multiuser interference (MUI) energy constraint waveforms to ensure achievable sum rate of communications...

A novel dual-function radar communication (DFRC) system is proposed, that achieves high rate, and can flexibly trade-off rate for improved sensing performance. The proposed a monostatic multiple-input multiple-output (MIMO) transmits wideband, precoded, orthogonal frequency division multiplexing (OFDM) waveforms from its antennas. subcarriers are divided into two groups, i.e., shared private. O...

In this work we consider a multiple-input multiple-output (MIMO) dual-function radar-communication (DFRC) system, which senses multiple spatial directions and serves users. Upon resorting to an orthogonal frequency division multiplexing (OFDM) transmission format differential phase shift keying (DPSK) modulation, study the design of radiated waveforms receive filters employed by radar The appro...