A Group-Oriented (t, n) Threshold Signature Scheme Against Replay Attacks

Chang, Chin‐Chen; Chen, Kuo-Lun; Lin, Chu‐Hsing; Chang, Jen-Chieh

doi:10.1007/11833529_83

Cited by 2 publications

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The photochemical reaction of lignin is a slow and complex process. 51,52 In our experiments, photocatalytic degradation of lignin was studied at 100 mg L −1 at pH 7.0 in the presence of RE-TiO 2 NRs in solution. UV-Vis absorption spectra and IR spectra are usually employed to evaluate the decay process of water soluble lignin.…”

Section: Photocatalytic Degradation Of Ligninmentioning

confidence: 99%

Synthesis of rare earth doped TiO₂nanorods as photocatalysts for lignin degradation

et al. 2015

View full text Add to dashboard Cite

A two-step process is developed to synthesize rare earth doped titania nanorods (RE-TiO 2 NRs) as photocatalysts for efficient degradation of lignin under simulated sunlight irradiation. In this approach, protonated titanate nanotubes with layered structures were first prepared by a hydrothermal approach, and rare earth metal ions were subsequently bound to the negatively charged surface of the synthesized titanate via electrostatic incorporation. The as-synthesized RE-TiO 2 NRs after calcination generally showed much higher photocatalytic efficiencies than those of undoped TiO 2 NRs or the commercial P25

show abstract

Section: Photocatalytic Degradation Of Ligninmentioning

confidence: 99%

Synthesis of rare earth doped TiO₂nanorods as photocatalysts for lignin degradation

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Guaiacol is a UV chromophore of lignin, the superabundant natural polymer important to the structural rigidity of vegetal tissues. The properties of lignin (and its subunits) have been studied extensively [27][28][29][30][31][32][33] due, in part, to its biological importance 34 and also its industrial potential, such as for use in biofuel production. 35 The addition of a methoxy group at phenol's ortho position fosters multiple conformers of guaiacol.…”

Section: Introductionmentioning

confidence: 99%

Solvent induced conformer specific photochemistry of guaiacol

Greenough

Thompson

Roberts

et al. 2014

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

Using a combination of ultrafast solution- and gas-phase spectroscopies, together with high-level theory calculations, we demonstrate that we are able to track conformer-specific photodissociation dynamics in solution through solvent choice. We reveal this phenomenon in guaiacol (2-methoxyphenol), a key subunit of the natural biopolymer lignin. In cyclohexane, the first electronically excited (1)ππ* (S1) state in guaiacol relaxes with a time-constant of τ = 4.5 ± 0.2 ns, mediated through intersystem crossing to lower lying triplet (Tn) states and internal conversion and fluorescence back to the ground state (S0). In contrast, in methanol, a further relaxation channel is also present; the S1 state relaxes with a time-constant of τ = 2.9 ± 0.1 ns, which is now additionally mediated through coupling onto a dissociative (1)πσ* (S2) state and subsequent O-H bond fission, evidenced through the appearance of a spectral signature for the guaiacoxyl radical after ∼250 ps. With the aid of complementary calculations, we attribute this to the now absent intramolecular H-bond between OH and OMe moieties, which now favours intermolecular H-bonding to methanol, lowering the barrier to O-H dissociation and facilitating H-atom loss via tunnelling.

show abstract

A Group-Oriented (t, n) Threshold Signature Scheme Against Replay Attacks

Cited by 2 publications

References 8 publications

Synthesis of rare earth doped TiO₂nanorods as photocatalysts for lignin degradation

Synthesis of rare earth doped TiO₂nanorods as photocatalysts for lignin degradation

Solvent induced conformer specific photochemistry of guaiacol

Contact Info

Product

Resources

About

A Group-Oriented (t, n) Threshold Signature Scheme Against Replay Attacks

Cited by 2 publications

References 8 publications

Synthesis of rare earth doped TiO2nanorods as photocatalysts for lignin degradation

Synthesis of rare earth doped TiO2nanorods as photocatalysts for lignin degradation

Solvent induced conformer specific photochemistry of guaiacol

Contact Info

Product

Resources

About

Synthesis of rare earth doped TiO₂nanorods as photocatalysts for lignin degradation

Synthesis of rare earth doped TiO₂nanorods as photocatalysts for lignin degradation