Assessment of accelerated aging for thermally upgraded transformer insulation paper by dicyandiamide [PDF]
The oil-impregnated dielectric papers are the main components of distribution transformer which govern its service time. Therefore, durability enhancement of this grade of paper will cause to extend transformers life.
Mohammad Azadfallah +2 more
doaj +1 more source
Effect of Type and Amount of Accelerator on Reactivity and Curing Behavior of Epoxy/Dicyandiamide/Accelerator System [PDF]
Hypothesis: The effects of four accelerators 2,4,6-tris(dimethyl aminomethyl) phenol (DMP30), 2-methylimidazole (2MI), 2-phenylimidazole (2PhI) and carbonyldiimidazole (CDI) at 0.6 and 1 phr contents on the curing behavior of a diglycidyl ether of ...
Maryam Dareh +2 more
doaj +1 more source
Graphitic carbon nitrides (g-C _3 N _4 s) have continued to attract attention as metal-free, low-cost semiconductor catalysts. Herein, a systematic synthesis and characterization of g-C _3 N _4 s prepared using four conventional precursors (urea (U ...
Tuçe Fidan +2 more
doaj +1 more source
Characterization of insulation papers using FTIR-ATR spectroscopy [PDF]
The need to increase the productivity and capacity of power transformers has conditioned the production of insulating papers of a higher thermal class. For this purpose, various techniques of solid insulation modification were applied, which enable the ...
Planojević Jelena +5 more
doaj +1 more source
Incorporation in soil and addition of enzyme inhibitor as a way to increase the efficiency of pig slurry and mineral fertilizer [PDF]
The incorporation of nitrogen (N) fertilizers in the soil and the use of enzyme inhibitors (EI) can improve the efficiency of N fertilization by reducing losses by ammonia volatilization and nitrate leaching.
Luiza Fernanda Erdmann +4 more
doaj +1 more source
Transformation of Ammonium Dicyanamide into Dicyandiamide in the Solid [PDF]
Ammonium dicyanamide NH4[N(CN)2] was synthesized through aqueous ion exchange. The crystal structure was investigated by single-crystal X-ray diffraction (P21/c, a = 378.67(6) pm, b = 1240.9(3) pm, c = 911.84(14) pm, β = 91.488(18)°, Z = 4). It derives from the CsCl structure type.
Jürgens, Barbara +3 more
openaire +5 more sources
Effect of Nitrification Inhibitors on N2O Emissions after Cattle Slurry Application
Cattle slurry injection (INJ) has shown to be an efficient measure to reduce ammonia (NH3) losses from soils but it might also significantly increase nitrous oxide (N2O) emissions, which can dominate the total greenhouse gas (GHG) release in silage maize
Christina Herr +3 more
doaj +1 more source
Effects of cyanamide fertilizer on microbial community structure of continuous cropping soil
With the increasing demand for vegetables, continuous vegetable cropping was more popular and common in China, which will result in seriously continuous cropping obstacle in fields.
MA Junwei +5 more
doaj +1 more source
: The impact on nitrous oxide (N2O) emissions caused by combining dairy slurry (DS) and urea to supply crops with nitrogen (N) is still not well characterized.
Celso Aita +9 more
doaj +1 more source
Bifunctional multi-metallic nitrogen-doped nanocarbon catalysts derived from 5-methylresorcinol
High-performance bi- and trimetallic nitrogen-doped nanocarbon catalysts for the electrochemical oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) were prepared by high-temperature pyrolysis from 5-methylresorcinol, dicyandiamide and ...
Kaarel Kisand +13 more
doaj +1 more source

