Results 101 to 110 of about 274,291 (339)
Background and aims: Mineral oils are petroleum derivatives used in metalworking processes. In recent years, considering the carcinogenicity of less refined mineral oil, two separate threshold limit values considered in recent years.
Athena Rafieepour +3 more
doaj
Molecular Spectroscopy as an alternative for dating Textiles
Ancient linen textiles undergo with time a slow change reflected in their Infrared and Raman spectra. The recording of FT-IR and FT-Raman spectra, that reveals a disappearance of some bands and appearance of other ones during the centuries, enables a ...
Baraldi Pietro, Tinti Anna
doaj +1 more source
Analysis of lard in cream cosmetics formulations using FT-IR spectroscopy and chemometrics [PDF]
Typically, cream preparation is composed from complex mixtures; therefore its analysis is rather difficult. The presence of lard (LD) in any personal care products is prohibited to be used by the Followers of Islam.
Abdul Rohman,, Che Man, Yaakob
core
Effects of Low Carbohydrate High Protein (LCHP) diet on atherosclerotic plaque phenotype in $ApoE/LDLR^{-/-}$ mice : FT-IR and Raman imaging [PDF]
Low Carbohydrate High Protein (LCHP) diet displays pro-atherogenic effects, however, the exact mechanisms involved are still unclear. Here, with the use of vibrational imaging, such as Fourier transform infrared (FT-IR) and Raman (RS) spectroscopies, we ...
Barańska, Małgorzata +9 more
core +1 more source
Double Helical Plasmonic Antennas
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin +7 more
wiley +1 more source
XRD AND IR INVESTIGATIONS OF SOME COMMERCIAL POLYSTYRENE SAMPLES THERMALLY DEGRADED
Thermal degradation of commercial polystyrene was investigated by XRD and FT-IR methods. The samples were heated 30 minutes at temperatures 140ºC, 200ºC, 250ºC, 300ºC and 350ºC and then brought back to room temperature.
Carmen NICULĂESCU +4 more
doaj +1 more source
The Role of the Trivalent metal in an LDH: Synthesis, Characterization and Fire Properties of Thermally Stable PMMA/LDH Systems [PDF]
Two layered double hydroxides (LDHs), calcium aluminum undecenoate (Ca3Al) and calcium iron undecenoate (Ca3Fe), have been prepared by the co-precipitation method.
Hossenlopp, Jeanne +3 more
core +1 more source
On the characterization of NaDEHP/n-heptane nonaqueous reverse micelles: The effect of the polar solvent [PDF]
The behavior of two polar solvents, ethylene glycol (EG) and dimethylformamide (DMF), entrapped in sodium bis-(2-ethylhexyl) phosphate (NaDEHP)/n-heptane reverse micelles (RMs) was investigated using dynamic light scattering (DLS), molecular probe ...
Chessa, Juana Josefa +4 more
core +1 more source
A stretchable and superhydrophobic pF1V1 polymer layer is conformally coated on Zn metal via iCVD, forming a water‐repelling interphase that inhibits the hydrogen evolution reaction. This tailored interface maintains excellent electrolyte compatibility while suppressing dendrite growth, thereby enhancing the long‐term electrochemical stability of Zn ...
Jaeyeon Lee +12 more
wiley +1 more source
Este trabalho consiste na caracterização de um pré-impregnado ("prepreg") de resina epoxídica/fibra de carbono, usando-se espectroscopia no infravermelho com transformada de Fourier (FT-IR), análise termogravimétrica (TG), calorimetria exploratória ...
Vanesa C. G. M. Ferrari +5 more
doaj

