Results 81 to 90 of about 1,032,914 (333)

The Comparison of Fourier Transform Infrared and Ultraviolet Spectroscopy Techniques for Determination of Mineral Oils

open access: yesSalāmat-i kār-i Īrān, 2018
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  

TG/FT-IR characterization of additives typically employed in EPDM formulations

open access: yesPolímeros, 2015
Thermogravimetric analysis coupled to Fourier transform infrared spectroscopy (TG/FT-IR) is a very popular technique for rubbers characterization. It involves analyses of the base polymer and additives.
Natália Beck Sanches   +2 more
doaj   +1 more source

FT-IR spectroscopic characteristics of differently cultivated Escherichia coli

open access: yes, 2018
Filip Z., Hermann S., Demnerová K. (2008): FT-IR spectroscopic characteristics of differently cultivated Escherichia coli. Czech J. Food Sci., 26: 458–463.
Z. Filip, S. Hermann, K. Demnerova
semanticscholar   +1 more source

Room‐Temperature, High‐Resolution Soft Anisotropic Conductive Film for Electrical Interfacing in Stretchable Electronics

open access: yesAdvanced Functional Materials, EarlyView.
A UV‐crosslinkable soft anisotropic conductive film (ACF) provides high‐resolution, room‐temperature electrical interfacing. Upon UV exposure, azide crosslinkers within the ACF matrix form covalent bonds with a wide range of C–H‐containing materials, resulting in interfaces that are both mechanically durable and electrically reliable.
Jun Choi   +7 more
wiley   +1 more source

Strain‐Activated Photo‐Dehalogenation Unlocks Low‐Energy One and Two‐Photon 3D Microfabrication

open access: yesAdvanced Functional Materials, EarlyView.
5,14‐NMI‐Cz acts, conversely to its 7,10‐NMI‐Cz(7,10‐'dibromo‐2‐(2,6‐diisopropylphenyl)‐1H‐benzo[lmn]carbazolo[9,1‐bc][2,8]phenanthroline‐1,3(2H)‐dione) counterpart, as modular photoinitiator with panchromatic photoactivity, featuring a weak C–Br bond from geometric strain for efficient Type I & II initiation. These studies demonstrate applicability of
Kacper Piskorz   +10 more
wiley   +1 more source

Caracterização de um pré-impregnado aeronáutico por FT-IR e análise térmica Characterization of pre-impregnated of epoxy resin/carbon fiber

open access: yesPolímeros, 2012
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  

Molecular Spectroscopy as an alternative for dating Textiles

open access: yesMATEC Web of Conferences, 2015
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

Caracterização por FT-IR da superfície de borracha EPDM tratada via plasma por micro-ondas FT-IR characterization of EPDM rubber surface treated by microwave plasma

open access: yesPolímeros, 2012
A superfície de uma borracha de etileno-propileno-dieno (EPDM) vulcanizada foi modificada via plasma por microondas, com gases Ar, Ar/O2, N2/O2 e N2/H2, tendo como objetivo melhorar as propriedades adesivas da superfície.
Renata P. dos Santos   +4 more
doaj   +1 more source

Tunable and Recyclable Piezoelectric Biomaterials via Ion‐Directed Guanine‐Quadruplex Assembly

open access: yesAdvanced Functional Materials, EarlyView.
Guanine‐quadruplex (GQ) assemblies, formed via ion‐mediated self‐assembly of amphiphilic guanine derivatives, are introduced as tunable and recyclable piezoelectric biomaterials. Distinct alkali ions induce unique dipole configurations and piezoelectric outputs, with K⁺ yielding the highest performance.
Seungho Lee   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy