Results 21 to 30 of about 125,203 (314)

The Role of Sulphate and Phosphate Ions in the Recovery of Benzoic Acid Self-Enhanced Ozonation in Water Containing Bromides

Molecules, 2021
The ozonation of aromatic compounds in low-pH water is ineffective. In an acidic environment, the decomposition of ozone into hydroxyl radicals is limited and insufficient for the degradation of organic pollutants.
Lilla Fijołek, Joanna Świetlik, Marcin Frankowski   +2 more
doaj   +1 more source

A thermochemical approach for calcium phosphate precipitation modeling in a pellet reactor [PDF]

, 2003
A common pathway for P-recovery from wastewater is phosphate precipitation as calcium phosphates. In this paper, a thermodynamic model for phosphate precipitation is proposed based on various models of activity coefficients taking into account various ...
Cabassud, Michel, Montastruc, Ludovic, Azzaro-Pantel, Catherine, Biscans, Béatrice, Domenech, Serge   +4 more
core   +1 more source

FLUORIDE PHOSPHATE AND PHOSPHATE GLASSES FOR PHOTONICS [PDF]

Phosphorus Research Bulletin, 2002
Phosphate (P) and fluoride phosphate (FP) glasses are attractive materials for a wide range of photonic applications such as lasers, amplifiers, photosensitivity, optical storage and Faraday rotators. They demonstrate high W transmission, low linear and nonlinear refractive index, low viscosity and low melting temperatures, athermal behaviour.
openaire   +2 more sources

Systems chemistry of aminoacyl phosphates: Spontaneous and selective peptide oligomerisation in water driven by phase changes

, 2023
The pathways and mechanisms that allow spontaneous and selective peptide elongation in aqueous abiotic systems remain unclear. Herein we work to uncover those pathways by following the systems chemistry of aminoacyl phosphates, the synthetic counterpart ...
Sandra , Moser, Arti, Sharma, Mahesh , Pol, Ralf , Thomann, Bin, Liu, Lenard, Saile, Danye , Qiu, Stefan , Wiesler, Bizan , Balzer, Johanna, Trefs, Kun, Dai, charalampos, Pappas, Thorsten , Hugel, Henning , Jessen   +13 more
core   +1 more source

Climate variability, pastoral and agro-pastoral livestock systems, and human nutrition in African drylands: a PRISMA-based systematic review of evidence, pathways, and policy implications

Frontiers in Nutrition
Livestock-based livelihoods underpin food security, dietary quality, and resilience in African arid and semi-arid lands (ASALs), yet the mechanisms linking livestock systems, food environments, and human nutrition under climate variability remain ...
Daniel O. Omokpariola
doaj   +1 more source

High-resolution solid state NMR experiments for the characterization of calcium phosphate biomaterials and biominerals [PDF]

, 2011
Calcium phosphates form a vast family of biominerals, which have attracted much attention in fields like biology, medicine, and materials science, to name a few.
Hanna, John, Christel Gervais, Smith, Mark,, Pourpoint Frederique, Smith, Mark E., Coelho, Cristina, Gilles Guerrero, Smith Mark, Isabelle Gennero, Christian Bonhomme, Mauri Francesco, Dupree, Ray, Laurencin Dalicieux, Sara, Bonhomme, Christian, Salles, Jean-Pierre, Pourpoint, Frédérique, John V. Hanna, Howes, Andrew P., Jean-Pierre Salles, Franck Fayon, Laurencin-Dalicieux, Sara, Gennero Isabelle, P. Hubert Mutin, Diogo Cristina, Dalicieux Sara, Howes, Andrew, P., Sara Laurencin Dalicieux, Danielle Laurencin, Mutin P, Gennero, Isabelle, Coelho Diogo, Cristina, Gervais, Christel, Laurencin Danielle, Francesco Mauri, Fayon, Franck, Cristina Coelho Diogo, Hanna John, Diogo, Cristina Coelho, Howes Andrew, Salles Jean-Pierre, Frédérique Pourpoint, Mutin, P. Hubert, Smith, Mark, E., Guerrero Gilles, Mark E. Smith, Dalicieux, Sara Laurencin, Guerrero, Gilles, Gervais Christel, Howes, Andrew,, Hanna, John V., Ray Dupree, Andrew P. Howes, Dupree Ray, Laurencin, Danielle, Mauri, Francesco, Bonhomme Christian and Fayon Franck   +55 more
core   +1 more source

Phosphate Uptake by Phosphate-Starved Euglena [PDF]

The Journal of general physiology, 1966
Phosphate-deprived Euglena acquire the ability to rapidly in-corporate added phosphate and, also, synthesize an induced acid phosphatase localized in the pellicle. The phosphate uptake system is saturated at low concentrations of phosphate and is inhibited by dinitrophenol, by low temperature, by K+, Li+, and Na+ ions, and competitively by arsenate ...
openaire   +2 more sources

Energy Transfer of Electronic Excitations by Activators in Phosphates and Sulfates via the Creation of Combined Electron Emission States

Crystals
In this work, the mechanisms for creating a combined electronic–radiative local state beneath the conduction band, consisting of intrinsic and activator electron–hole states, are experimentally substantiated.
Aibek S. Nurpeissov, Temirulan T. Alibay, Turlybek Nurakhmetov, Aivaras Kareiva, Aleksej Zarkov, Sapargali Pazylbek   +5 more
doaj   +1 more source

Crystal structures of two alkaline earth (M = Ba and Sr) dimanganese(II) iron(III) tris(orthophosphates)

Acta Crystallographica Section E: Crystallographic Communications, 2017
Two new orthophosphates, BaMn2Fe(PO4)3 [barium dimanganese(II) iron(III) tris(orthophosphate)] and SrMn2Fe(PO4)3 [strontium dimanganese(II) iron(III) tris(orthophosphate)], were synthesized by solid-state reactions.
Ghaleb Alhakmi, Abderrazzak Assani, Mohamed Saadi, Lahcen El Ammari   +3 more
doaj   +1 more source

A study of the inhibiton of copper corrosion by triethyl phosphate and triphenyl phosphate self-assembled monolayers [PDF]

Journal of the Serbian Chemical Society, 2006
Two kinds of phosphates, triethyl phosphate (TEP) and triphenyl phosphate (TPP), were used to form self-assembled monolayers for the inhibition of the corrosion of copper in 0.2 mol dm-3 NaCl solution.
Guo Wenjuan, Chen Shenhao, Houyi M.A.
doaj   +1 more source