Results 271 to 280 of about 3,337,621 (340)

A synthetic receptor for phosphocholine esters

Chemical Communications, 2006
A bifunctional Zn-salen modified cavitand, reminiscent of the enzyme phospholipase C, shows high efficiency and synergic effect in the binding of the phospholipid DOPC.
FELIX H. ZELDER, SALVIO, RICCARDO, JULIUS REBEK JR   +2 more
openaire   +3 more sources

Potential of triblock copolymers Pluronic® P-84 and F-108 with erythrosine B and its synthetic ester derivatives for photodynamic applications

, 2021
Erythrosine B (ERY) and its synthetic ester derivatives (ERYMET, ERYBUT and ERYDEC) were evaluated as promising photosensitizers (PS) for Photodynamic Therapy (PDT).
C. F. de Freitas, N. L. da Rocha, Isadora Simone Pereverzieff, V. R. Batistela, L. Malacarne, N. Hioka, W. Caetano   +6 more
semanticscholar   +1 more source

Biodegradability test for synthetic esters

Journal of Synthetic Lubrication, 1987
AbstractVarious synthetic esters were tested for their biodegradability, using a test sequence that began with the creation of biomass using sucrose and municipal wastewater; biodegradation was measured using biochemical oxygen demand and chemical oxygen demand values.
C. Versino, M. Novaria
openaire   +1 more source

The Hidden Vulnerabilities of Pentaerythritol Synthetic Ester Insulating Oil for Eco-Friendly Transformers: A Dive Into Molecular Behavior

IEEE transactions on dielectrics and electrical insulation
Ester-based insulating oils exhibit high flash points and biodegradability. Their inferior lightning impulse breakdown voltage (LIBDV), however, hinders the development of high-voltage, large-capacity, eco-friendly transformers.
Shi Li, Feipeng Wang, P. Rózga, Xiao-Xi Chen, Ying Zhang, Bojun Li, Sichen Yan, Ungarala Mohan Rao, Jian Li   +8 more
semanticscholar   +1 more source

Reclamation of Synthetic Ester Dielectric Liquids by Pressure and Gravity Percolation Methods

IEEE transactions on dielectrics and electrical insulation
The tremendous demand for electricity requires higher operating voltages, which in turn impose great stress on the transformer insulation system. Condition-based maintenance and liquid decontamination are activities for assessing the risks and extending ...
T. Jayasree, Senior Member Ieee Issouf Fofana, E. Rodriguez-Celis, Senior Member Ieee Patrick Picher, M. I. S. Brettschneider, Issouf Jayasree, S. Fofana, Brettschneider, Esperanza Mariela   +8 more
semanticscholar   +1 more source

Differential Low-Temperature AC Breakdown Between Synthetic Ester and Mineral Oils: Insights From Both Molecular Dynamics and Quantum Mechanics

IEEE transactions on dielectrics and electrical insulation
Synthetic ester oil (SEO) is promising for bolstering sustainable development and enhancing the operational reliability of transformers at low temperatures.
Shi Li, Feipeng Wang, Liangxuan Ouyang, Xiao-Xi Chen, Zijian Yang, P. Rózga, Jian Li, I. Fofana   +7 more
semanticscholar   +1 more source

Anticoagulant Sulfuric Acid Esters of Synthetic Polyglucoses

Journal of the American Pharmaceutical Association (Scientific ed.), 1956
Abstract The anticoagulant activity and toxicity of a series of sulfated synthetic polyglucoses were studied. The samples possessed 10-40 per cent the activity of heparin and were 2.5-10 times as toxic as heparin. The results obtained are similar to those reported for other sulfated polysaccharides.
D P, GOLDSMITH, K L, KELLEY, C W, MUSHETT   +2 more
openaire   +2 more sources

Comparative Study of Mineral Oil, Synthetic Ester, and Natural Ester as Liquid Insulation in Transformers

2024 6th International Conference on Power Engineering and Renewable Energy (ICPERE)
Power transformers are critical components in electrical power systems that require effective insulation to prevent service interruptions. The insulation material, which typically consists of mineral oil and paper, is often subject to aging, which can ...
Unzhil Latif Jayyid, A. Fadillah, Mashudan Kurniawan, Suwarno, Rachmawati, Aji Lesmana, Susiana Mutia, Alamsyah Anwar   +7 more
semanticscholar   +1 more source

Comparison of breakdown voltage of vegetable olive with mineral oil, natural and synthetic ester liquids under DC voltage

IEEE transactions on dielectrics and electrical insulation, 2020
This paper deals with a comparative study of the negative and positive DC breakdown voltages of different insulating liquids namely two natural esters (an extra virgin olive oil (OO) without additive and rapeseed oil), two synthetic ester fluids (a ...
A. Reffas, A. Beroual, H. Moulai
semanticscholar   +1 more source

Synthetic Studies on Natural Diterpenoid Glyceryl Esters

Tetrahedron, 2000
Synthesis of natural bicyclic and tricyclic diterpenoid diacylglycerols has been performed by regioselective coupling of terpenoid acid with glycerol at 1'-sn position. This method may be considered a general approach to obtain optically active acylglycerols. The preparation of C-13-labelled geranylgeranoic acid glyceryl esters is also described here. (
Ungur N., Gavagnin M., Fontana A, Cimino G.   +3 more
openaire   +3 more sources