Results 71 to 80 of about 2,634,309 (306)

Calculation of IR-spectra of structural fragments of lignins

open access: yesEPJ Web of Conferences, 2017
To study structure of softwood lignins the experimental and theoretical IR-spectra in middle IR-diapason were analyzed. To interpret these data the quantum chemical calculations of IR-spectra of general dimmer fragments of softwood lignins by method of ...
Derkacheva O.Yu., Ishankhodzhaeva M.M.
doaj   +1 more source

Deconvolution of FT-IR spectrum of LYS, precipitated LYS and the samples.

open access: yes, 2021
Deconvolution of FT-IR spectrum of LYS, precipitated LYS and the samples.
Reihaneh Manteghi (11820257)   +7 more
core   +1 more source

Nanoconfinement‐Induced Second‐Harmonic Circular Dichroism via Chirality–Ferroelectric Coupling

open access: yesAdvanced Functional Materials, EarlyView.
Nanoconfinement of a ferroelectric nematic liquid crystal within a chiral nanoporous sponge yields an enhanced second‐harmonic generation circular dichroism (|gSHG–CD| ≈ 1.1). Polarization‐resolved analysis suggests an additional magnetic‐dipole‐associated nonlinear contribution under nanoconfinement, highlighting chirality–ferroelectric coupling as a ...
Jae‐Jin Lee   +5 more
wiley   +1 more source

FEATURES OF NEODYMIUM ION SORPTION BY MODIFIED INTERPOLYMER SYSTEMS

open access: yesШәкәрім университетінің хабаршысы: Техника ғылымдар
In this study, we investigated the selective sorption of neodymium ions from a mixture of solutions using interpolymer systems consisting of two industrial sorbents – Amberlite IR120(Н+) and AB-17-8(ОН-) ion exchange resins – in various molar ratios ...
M. K. Kabulova   +3 more
doaj   +1 more source

Preferential Interfacial Engineering of Hydrogels via Interdigitated Nanoparticle Assembly

open access: yesAdvanced Functional Materials, EarlyView.
Robust surface functionalization of hydrogel surfaces is performed via interdigitated metal nanoparticle assembly, inducing strong affinity with the hydrogel matrix. The partially exposed nanoparticle domains act as interfacial nanobridges that mediate both chemical and physical bonding with diverse materials, including small molecules, fluorous ...
Hyeonjin Kim   +11 more
wiley   +1 more source

Spread spectrum techniques for indoor wireless IR communications [PDF]

open access: yesIEEE Wireless Communications, 2003
Multipath dispersion and fluorescent light\ud interference are two major problems in indoor\ud wireless infrared communications systems. Multipath\ud dispersion introduces intersymhol interference\ud at data rates above 10 Mb/s, while\ud fluorescent light induces severe narrowband\ud interference to baseband modulation schemes\ud commonly used such as ...
K. K. Wong, Tim O'Farrell
openaire   +7 more sources

Density Functional Study of a Helical Organic Cation

open access: yesCHIMIA, 2003
We report on the first stage of our theoretical study of the quino[2,3,4-kl]acridinium,1,13-dimethoxy-5,9-dipropyl-cation. This molecule, involved in the synthesis of novel triazaangulenium dyes of high chemical stability, is a chiral [4 ...
Delphine Bas   +3 more
doaj   +1 more source

FT-IR spectrum of CuS-GeO2-TiO2 composite coating.

open access: yes, 2016
FT-IR spectrum of CuS-GeO2-TiO2 composite coating.
Xinyu Wen (3693), Huawei Zhang (424729)
core   +1 more source

Melanin's Role in Balancing Mechanical Strength and Reproductive Output in Environmentally Stressed Fungal Spores

open access: yesAdvanced Functional Materials, EarlyView.
Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley   +1 more source

The far-infrared spectrum of S140 IR

open access: yesThe Astrophysical Journal, 1978
The spectrum of S140 IR from 65 to 345 kaysers (155-29 microns) has been measured with 9.4-kayser resolution. The emission in this spectral range is consistent with a 9-arcsec-diameter blackbody radiating at a temperature of 70 K. Attempts at finding a self-consistent radiative-transfer model of the source suggest that the near- and far-infrared ...
A. T. Tokunaga   +3 more
openaire   +1 more source

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