Results 101 to 110 of about 401,449 (225)

A Fourier transform spectrometer for visible and near ultra-violet measurements of atmospheric absorption [PDF]

open access: yes
The development of a prototype, ground-based, Sun-pointed Michelson interferometric spectrometer is described. Its intended use is to measure the atmospheric amount of various gases which absorb in the near-infrared, visible, and near-ultraviolet ...
Gerlach, J. C.   +2 more
core   +1 more source

Microencapsulation Yield Assessment Using TGA [PDF]

open access: yes, 2019
In this study, microcapsules containing different contents of different kinds of fragrances and with a regular spherical shape, 2,0–8,0 µm diameter, were synthesized in various core:shell ratios. Mint and cuir fragrances were successfully encapsulated in
De la Cruz, Noelia   +5 more
core   +1 more source

3D‐Printed Porous Hydroxyapatite Formed via Enzymatic Mineralization

open access: yesAdvanced Functional Materials, EarlyView.
Bone combines lightness, strength, and the ability to heal, inspiring new materials design. This work introduces a room‐temperature, enzyme‐mediated 3D printing method to create porous hydroxyapatite scaffolds. The process avoids energy‐intensive sintering, preserves bioactivity, and allows control over porosity and mineralization.
Francesca Bono   +6 more
wiley   +1 more source

Fourier-transform infrared spectroscopy

open access: yes
Citation: 'Fourier-transform infrared spectroscopy' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.08605 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for ...
openaire   +2 more sources

High Coherence Mid-Infrared Dual Comb Spectroscopy Spanning 2.6 to 5.2 microns

open access: yes, 2017
Mid-infrared dual-comb spectroscopy has the potential to supplant conventional high-resolution Fourier transform spectroscopy in applications that require high resolution, accuracy, signal-to-noise ratio, and speed.
Baumann, Esther   +6 more
core   +1 more source

NIR Calibrations for Soybean Seeds and Soy Food Composition Analysis: Total Carbohydrates, Oil, Proteins and Water Contents [PDF]

open access: yes, 2011
Conventional chemical analysis techniques are expensive, time consuming, and often destructive. The non-invasive Near Infrared (NIR) technology was introduced over the last decades for wide-scale, inexpensive chemical analysis of food and crop seed ...
I. C. Baianu, Jun Guo
core   +1 more source

Adaptive dual-comb spectroscopy in the green region

open access: yes, 2012
Dual-comb spectroscopy is extended to the visible spectral range with a set-up based on two frequency-doubled femtosecond ytterbium-doped fiber lasers. The dense rovibronic spectrum of iodine around 19240 cm-1 is recorded within 12 ms at Doppler-limited ...
A. Poisson   +12 more
core   +1 more source

Methodologies for Characterization of Aerospace Polymers/Energetic Materials – a Short Review

open access: yesJournal of Aerospace Technology and Management, 2016
Fourier transform infrared spectroscopy techniques, associated or not to others, are a well-studied subject used for characterizing polymers/energetic materials that have been employed mainly in aerospace industries.
Shirley Motta Pedreira   +6 more
doaj  

Structural investigations of Eocene coals from foreland basin of central Nepal Himalaya

open access: yesEnergy Exploration & Exploitation, 2017
Structural investigations of Eocene coal from foreland basin of central Nepal Himalaya were subjected to attenuated total reflection Fourier transform infrared spectroscopy, X-ray diffraction, high-resolution transmission electron microscopy and scanning
Bhupati Neupane   +4 more
doaj   +1 more source

FTIR analysis of aviation fuel deposits [PDF]

open access: yes, 1984
Five modes of operation of the Nicolet 7199 Fourier Transform Infrared Spectrophotometer have been evaluated for application in analysis of the chemical structure of accelerated storage/thermal deposits produced by jet fuels.
Helmick, L. S., Seng, G. T.
core   +2 more sources

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