Results 21 to 30 of about 3,542 (57)

Microwave-Assisted Selective Hydrogenation of Furfural to Furfuryl Alcohol Employing a Green and Noble Metal-Free Copper Catalyst. [PDF]

ChemSusChem, 2016
Romano PN, de Almeida JM, Carvalho Y, Priecel P, Falabella Sousa-Aguiar E, Lopez-Sanchez JA.   +5 more
europepmc   +1 more source

Actual new cancer-causing hydrazines, hydrazides, and hydrazones. [PDF]

J Cancer Res Clin Oncol, 1980
Toth B.
europepmc   +1 more source

Predicting the insulating paper state of the power transformer based on XGBoost/LightGBM models. [PDF]

Sci Rep
Ghoneim SSM, Baz M, Alzaed A, Zewdie YT.
europepmc   +1 more source

Solar-driven production of renewable chemicals via biomass hydrogenation with green methanol. [PDF]

Nat Commun
Chen G, Fu C, Zhang W, Gong W, Ma J, Ji X, Qian L, Feng X, Hu C, Long R, Xiong Y.   +10 more
europepmc   +1 more source

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Analysis of Low-Cost Inkjet-Printed Optical Platforms Covered by Molecularly Imprinted Polymers to Detect Furfural in Water

IEEE Sensors Journal, 2023
This work proposes an analysis relative to an optical-chemical sensor used to detect furanic compounds in aqueous solutions. The optical platform consists of a flexible substrate covered with inkjet-printed silver nanoparticle lines; on the latter, a ...
N. Cennamo, F. Arcadio, A. Minardo, D. D. Prete, L. Zeni, M. Pesavento, G. Alberti, V. Marletta, B. Andò   +8 more
semanticscholar   +1 more source

Monitoring and Condition Assessment of Insulation Paper of Distribution Transformers With Novel Oil Spectroscopy Method

IEEE transactions on dielectrics and electrical insulation, 2022
Measuring the furan concentration in transformer oil is one of the most common methods of monitoring and evaluating insulation paper and estimating its degree of polymerization (DP). Here, methods for measuring furan concentration, especially ultraviolet-
R. Emadifar, N. Kalantari, V. Behjat, R. Najjar   +3 more
semanticscholar   +1 more source

Complementary Analysis of the Degree of Polymerization Based on Chemical Markers 2-Furaldehyde and Methanol Using the Fuzzy Logic

2020 21st International Symposium on Electrical Apparatus & Technologies (SIELA), 2020
This paper proposes the complementary analysis of the degree of polymerization by using 2-furaldehyde (2-FAL) and methanol (CH3OH) as chemical markers. It is presented a complementary method of analyzing the condition of solid insulation in transformers,
A. Aciu, M. Nitu, M. Nicola, C. Nicola, Florica Lăzărescu   +4 more
semanticscholar   +1 more source

Identification and characterization of forced degradation products of 5-hydroxymethyl-2-furaldehyde (5-HMF) by HPLC, LC-LTQ/Orbitrap and NMR studies.

Journal of Pharmaceutical and Biomedical Analysis, 2023
5-Hydroxymethyl-2-furaldehyde (5-HMF) is a kind of aldehyde compound with highly active furan ring, which is generated by dehydration of glucose, fructose, and other monosaccharides.
Yong Lu, Yaqi Guo, Yajun Zhang, Huimin Sun, Xianfu Wu   +4 more
semanticscholar   +1 more source

Detection of 2-FAL and Moisture Content in Transformer Oil using Capacitive Sensor

2022 2nd Asian Conference on Innovation in Technology (ASIANCON), 2022
The Transformer is one of the important equipment of power systems. It is very vital link in generation, transmission and distribution in electrical power system.
Y. Hussain, Mohammad Ariz, Shaheen Parveen, S. A. Khan   +3 more
semanticscholar   +1 more source

Frequency dielectric spectroscopy and an innovative optical sensor to assess oil-paper degradation

IEEE transactions on dielectrics and electrical insulation, 2020
In this paper, frequency dielectric spectroscopy (FDS) and an innovative optical sensor for the detection of 2-furaldehyde (2-FAL) are used to check the degree of ageing of differently processed oil-paper specimens when exposed to thermal stress.
L. De Maria, J. Borghetto, N. Cennamo, F. Scatiggio, M. Pesavento, L. Zeni   +5 more
semanticscholar   +1 more source