Results 61 to 70 of about 8,183 (211)

Selective photo labeling of tryptophan in N‐acetyl‐L‐tryptophan ethyl ester and peptide WWCNDGR with a diaryl nitrenium ion

open access: yesPhotochemistry and Photobiology, EarlyView.
Visible light photolysis of a N‐(N,N‐diarylaminopyridinium) salt allows for covalent modification of a peptide. Mass spectrometry demonstrates that this procedure selectively labels tryptophan residues. Laser flash photolysis experiments show that bond formation occurs via a diarylnitrenium ion intermediate.
Edward S. Chinn   +3 more
wiley   +1 more source

An Efficient QAM Detector via Nonlinear Post-Distortion Based on FDE Bank Under PA Impairments

open access: yes, 2021
In this paper, we propose a receiver structure for single-carrier uplink transmission with frequency domain equalization (FDE) that is exposed to power amplifier (PA) nonlinearities.
Salman, Murat Babek   +3 more
core   +1 more source

Decoupling Amplitude, Energy Input and Contact Time in the Ultrasound‐Assisted Extraction of Ascophyllum nodosum Bioactives

open access: yesAdvanced Chemical Engineering, Volume 1, Issue 2, December 2026.
This study showed that ultrasound amplitude had little influence on seaweed solubilization when energy input and contact time were controlled. Increasing energy improved solubilization and protein recovery but reduced antioxidant responses, while biomass loading affected extract composition.
Roberto Garcia Peran   +5 more
wiley   +1 more source

Spirostane-type Saponins from « Yellow Coast »

open access: yesNatural Product Communications, 2015
Three steroidal glycosides were isolated from the bark of Dracaena fragrans (L.) Ker Gawl. « Yellow Coast », and a fourth from the roots and the leaves.
Abdelmalek Rezgui   +4 more
doaj   +1 more source

Active and Intelligent Cellulose Acetate Films Incorporating Clitoria ternatea Flower Powder and Extract

open access: yesLegume Science, Volume 8, Issue 4, December 2026.
ABSTRACT The demand for active intelligent packaging has been increasing as a strategy to ensure food safety and quality. In this study, cellulose acetate films were developed by incorporating Clitoria ternatea flower powder and freeze‐dried extract at 20% and 30% (w/w). The films were prepared by the casting and were characterized for their appearance,
Glória Caroline Paz Gonçalves   +12 more
wiley   +1 more source

Shooting Methods for Boundary Value Problems of Fractional Differential Equations

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT We consider two‐point boundary value problems of fractional differential equations (FDEs) including a Caputo derivative with a fractional order in the range (0,1) or (1,2). The numerical solution of a boundary value problem is investigated using shooting methods.
Roland Pulch, Abhishek Kumar Singh
wiley   +1 more source

Widely linear iterative equalizers for SC-FDE systems

open access: yes, 2013
Widely linear iterative equalizers for SC-FDE ...
Le Ruyet, Didier   +3 more
core   +1 more source

Iterative multipacket detection with FDE based MAC protocol in vehicular ad hoc networks [PDF]

open access: yes, 2019
Wireless access in vehicular environments (WAVE), is especially designed to support vehicular ad hoc networks (VANETs) requirements, where rapidly changing channel conditions introduces unsynchronized transmissions.
Rashid, Ahmed N.   +2 more
core   +1 more source

Ibuprofen-Induced Multiple Fixed Drug Eruption Confirmed by Re-Challenge: A Case Report and Literature Review

open access: yesDiagnostics
Background: Fixed drug eruption (FDE) is a type of drug-induced skin inflammation characterized by the recurrence of lesions in the same region following repeated exposure to the causative drug.
Yoshihito Mima   +4 more
doaj   +1 more source

Reducible functional differential equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1985
This is the first part of a survey on analytic solutions of functional differential equations (FDE). Some classes of FDE that can be reduced to ordinary differential equations are considered since they often provide an insight into the structure of ...
S. M. Shah, Joseph Wiener
doaj   +1 more source

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