Results 21 to 30 of about 192,136 (258)

Synthesis, Analysis, Cholinesterase-Inhibiting Activity and Molecular Modelling Studies of 3-(Dialkylamino)-2-hydroxypropyl 4-[(Alkoxy-carbonyl)amino]benzoates and Their Quaternary Ammonium Salts

Molecules, 2017
Tertiary amines 3-(dialkylamino)-2-hydroxypropyl 4-[(alkoxycarbonyl)amino]benzoates and their quaternary ammonium salts were synthesized. The final step of synthesis of quaternary ammonium salts was carried out by microwave-assisted synthesis.
Tereza Padrtova, Pavlina Marvanova, Klara Odehnalova, Renata Kubinova, Oscar Parravicini, Adriana Garro, Ricardo D. Enriz, Otakar Humpa, Michal Oravec, Petr Mokry   +9 more
doaj   +1 more source

Laboratory studies on dissolution of nitrogen fertilizers by humidity and precipitation

Agricultural & Environmental Letters, 2020
Aiming at improving fertilizer management by assessing fertilizer dissolution, we compared the hygroscopicity of calcium ammonium nitrate (CAN), ammonium nitrate (NS 27‐4), and nitrate compounds (laboratory grade).
Christian Sigtryggsson, Karin Hamnér, Holger Kirchmann   +2 more
doaj   +1 more source

Comparison of the effects of seed coating with tungsten and molybdenum compounds on seedling establishment rates of rice, wheat, barley, and soybean under flooded conditions

Plant Production Science, 2017
Seed coating with molybdenum compounds improves seedling establishment for rice, wheat, barley, and soybean when such seeds were sown under flooded conditions.
Yoshitaka Hara
doaj   +1 more source

Excessive ammonia inhibited transcription of MsU2 gene and furthermore affected accumulation distribution of allantoin and amino acids in alfalfa Medicago sativa

Journal of Integrative Agriculture, 2015
In legume plants, uricase gene (Nodulin-35) plays a positive role in metabolism of ureide and amide compounds in symbiotic nitrogen-fixing in the nodules. In this study, a pot experiment was performed to examine the effects of ammonium application on the
Li WANG, Lin-lin JIANG, Nomura Mika, Tajima Shigeyuki, Xian-guo CHENG   +4 more
doaj   +1 more source

Removal of quaternary ammonium compounds in ion exchange process [PDF]

E3S Web of Conferences, 2019
The study attempted to evaluate the effectiveness of ion exchange process in cationic surfactant (benzalkonium chloride, BAC) removal from model solutions.
Klimonda Aleksandra, Kowalska Izabela
doaj   +1 more source

Encapsulated Amazonian Microalgae Reduce Ammonia and Improve Survival of Female Poecilia reticulata During Simulated Transport

Fishes
The accumulation of un-ionized ammonia (NH3) during the transport of live ornamental fish poses a critical threat to animal welfare and post-transport survival.
Marianela Cobos, Marcos J. Guerra, Leonardo J. Pizarro, Gladys R. Panduro, Danitza E. Ampudia, Freddy O. Espinoza-Campos, Carlos G. Castro, Juan C. Castro   +7 more
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Research on the efficiency of filter media / Filtravimo užpildų efektyvumo tyrimai

Mokslas: Lietuvos Ateitis, 2013
The main problems of ground water for drinking purposes in Lithuania include the increased concentration of iron, ammonium and manganese compounds. Organic compounds have the main impact on removing iron, ammonium and manganese compounds. The coagulation
Ramunė Albrektienė, Mindaugas Rimeika, Viktorija Petraitytė   +2 more
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CLXXXV.—The configuration of substituted ammonium compounds [PDF]

J. Chem. Soc., Trans., 1912
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Jones, Humphrey Owen, Dunlop, John Gunning Moore   +1 more
openaire   +1 more source

Computer quantum-chemical modeling of the interaction of selenium nanoparticles with quaternary ammonium compounds

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2023
In this paper, a computer quantum-chemical simulation of the interaction of selenium nanoparticles with quaternary ammonium compounds was carried out, in which models of molecular complexes, electron density distribution, as well as higher populated and ...
A.V. Blinov, M.A. Pirogov, A.A. Gvozdenko, A.B. Golik, Z.A. Rekhman, M.A. Kolodkin, D.D. Filippov   +6 more
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Selective Recognition of Ammonium over Potassium Ion with Acyclic Receptor Molecules Bearing 3,4,5-Trialkylpyrazolyl Groups

Organic Materials, 2022
Among the 1,3,5-trisubstituted 2,4,6-triethylbenzenes bearing pyrazolyl groups, the compounds with 3,5-dimethylpyrazolyl moieties were found to be effective receptors for ammonium ions (NH4 +).
Felix Fuhrmann, Wilhelm Seichter, Monika Mazik   +2 more
doaj   +1 more source