Results 41 to 50 of about 3,883 (205)

Experimental Design: Application to the Development of a Treatment to Inhibit the Deposition of Barium Sulfate Liable to Be Formed in Enhanced Oil Recovery by Waterflooding Planification d'expériences : application à la mise au point d'un traitement inhibiteur du depôt de sulfate de baryum susceptible de se former en récupération assistée du pétrole par injection d'eau

Oil & Gas Science and Technology, 2006
For technical and economic reasons, waterflooding is the most widely-used method in enhanced oil recovery [1]. In many situations, unfortunately, the formation water is incompatible with the injection water.
Roque C., Girou A., Messaoudene N., Puech-Costes E., Maurette M. T.   +4 more
doaj   +1 more source

Fluorescent Silicate Materials for the Detection of Paraoxon [PDF]

, 2010
Porphyrins are a family of highly conjugated molecules that strongly absorb visible light and fluoresce intensely. These molecules are sensitive to changes in their immediate environment and have been widely described for optical detection applications ...
Brandy Johnson, Brian Melde, Cassandra Thomas, Anthony Malanoski, Iwona Leska, Paul Charles, Damon Parrish, Jeffrey Deschamps, Amao, Feng, Malinski, Ogoshi, Mauzerall, Shelnutt, Schneider, Balaji, Balaji, Han, Zhang, Huo, Cardoso, Cardoso, Tao, Tao, Tao, Johnson-White, Kosuge, Matsumoto, Palaniappan, Kresge, Burleigh, Goto, Melde, Nakanishi, Nakanishi, Nakanishi, Amatani, Nakanishi, Brandhuber, Zhong, Jayasundera, Loy, Johnson, Johnson-White, White, Kim, Umpleby, Nozawa, Sun, Sun, Gebreegzi, Tscharntke   +51 more
core   +1 more source

Metabolite profiling of non-sterile rhizosphere soil [PDF]

, 2017
Rhizosphere chemistry is the sum of root exudation chemicals, their breakdown products and the microbial products of soil-derived chemicals. To date, most studies about root exudation chemistry are based on sterile cultivation systems, which limits the ...
Cotton, A., McFarlane, A.E., Pétriacq, P., Rolfe, S.A., Ton, J., Williams, A.   +5 more
core   +3 more sources

Interaction of vapor-phase and liquid organophosphonates with inorganic surfaces

RSC Applied Interfaces
Chemical warfare agents (CWAs) pose a threat to humanity, which motivates research focused on their destruction.
Swapnil Das, M. Schoenitz, E. Dreizin
semanticscholar   +1 more source

MODIFICATION OF COMPOSITION OF SALINITY INHIBITORS BASED ON ORGANOPHOSPHONATES AND ACRYLIC ACID

Technical science and innovation, 2020
Chemical and mineralogical compositions of mineral deposits and acidic precipitations have been studied, and synergistically effective compositions of inhibitors of salt deposits have been selected based on -PO3H2 and COOH containing organic compounds ...
B. Kadirov, O. Kamilov, Y. Usmanova, H. Kadirov, Z. Davlatova, E. Cherkasova   +5 more
semanticscholar   +1 more source

Lanthanide Coordination Networks Based on Diamantane‐4,9‐Diphosphonic Acid

Zeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 1, January 6, 2026.
The combination of Ln3+ ions and the diamantane‐4,9‐bis(hydrogenphosphonate) linker results in 3D networks where Eu3+, Gd3+, and Er3+ exhibit an uncommon coordination number of 6. Four new Ln‐based (Ln = Eu, Gd, Er) coordination networks, {[EuL1.5(H2O)4]·H2O}n and {[LnL1.5(H2O)]·H2O}n (Ln = Eu, Gd, Er), were synthesized using the precursor diamantane‐4,
Tim Müller, Peter Ferber, Philipp M. Roos, Nabil Assahub, Christoph Janiak   +4 more
wiley   +1 more source

Creation and study of formulations as inhibitors of metal corrosion and scaling for stabilization water treatment in water utilization systems (a review) [PDF]

, 2016
This review summarizes studies for the past 5 years aimed at creation of efficient organophosphonate reagents for the stabilization water treatment aimed at preventing metal corrosion and scaling in water utilization systems.This study was carried out ...
Bolt, Y. V., Dernovaya, E. S., Driker, B. N., Fetisova, T. S., Tsirulnikova, N. V.   +4 more
core  

Synthesis of Diaryl‐ and Dialkynylphosphinates From Ubiquitous PV Sources via a Redox‐Neutral Approach

Advanced Science, Volume 12, Issue 36, September 25, 2025.
Classical strategies for P─C bond formation rely on precursors (e.g., PH3, H2PO2, PCl3) obtained from P4, which is produced via the energy‐intensive thermal process. Here, an alternative, redox‐neutral approach is explored. Primary phosphate sources are activated with triflic anhydride (Tf2O) and 4‐dimethylaminopyridine (DMAP) to a versatile PV ...
Tobias Schneider, Kai Schwedtmann, Jannis Fidelius, Rosa M. Gomila, Antonio Frontera, Jan J. Weigand   +5 more
wiley   +1 more source

Chemical functionalisation of silicon and germanium nanowires [PDF]

, 2018
The reduced dimensionality of nanowires implies that surface effects significantly influence their properties, which has important implications for the fabrication of nanodevices such as field effect transistors and sensors.
Collins, Gillian, Holmes, Justin D.
core   +1 more source

Gene expansion and positive selection as bacterial adaptations to oligotrophic conditions [PDF]

, 2019
We examined the genomic adaptations of prevalent bacterial taxa in a highly nutrient- and ion-depleted freshwater environment located in the secondary cooling water system of a nuclear research reactor.
Boon, Nico, Denef, Vincent J, Leys, Natalie, Monsieurs, Pieter, Props, Ruben, Vandamme, Peter   +5 more
core   +1 more source