Results 31 to 40 of about 31,093 (293)

Compressive strength, microstructure and hydration products of hybrid alkaline cements [PDF]

Materials Research, 2014
Ordinary Portland cement (OPC) is the dominant binder in the construction industry with a global production that currently reaches a total of 3 Gt per year.
Zahra Abdollahnejad, Petr Hlavacek, Sergio Miraldo, Fernando Pacheco-Torgal, José Luís Barroso de Aguiar   +4 more
doaj   +1 more source

Impact of silicate fertilizer on soil properties and yield of bread wheat in Nitisols of tropical environment

Heliyon, 2023
Purpose: Soil acidity and depletion of essential plant nutrients are among the major abiotic stresses that constrained wheat productivity in Ethiopia. Silicates and silicate by-products can be used as alternative source for amendment of soil acidity and ...
Gobena Negasa, Kassu Tadesse, Dugasa Gerenfes, Dawit Habte, Anbessie Debebe, Mengistu Chemeda, Getnet Adugna   +6 more
doaj   +1 more source

A divergent heritage for complex organics in Isheyevo lithic clasts [PDF]

, 2017
Primitive meteorites are samples of asteroidal bodies that contain a high proportion of chemically complex organic matter (COM) including prebiotic molecules such as amino acids, which are thought to have been delivered to Earth via impacts during the ...
Alexander, Alexander, Alexander, Alexander, Alexander N. Krot, Alt, Altwegg, Aléon, Becker, Belloche, Bergin, Biver, Bizzarro, Bockelée-Morvan, Bollard, Bonal, Bonal, Briani, Brownlee, Bunch, Busemann, Chakraborty, Ciesla, Clayton, Cleeves, Cleeves, Coakley, Cobb, Cody, Cody, Cooper, Daniel P. Wielandt, Davidson, De Gregorio, De Gregorio, De Marcellus, De Marcellus, Deloule, Dodson-Robinson, Doyle, Dworkin, Ehrenfreund, Elishevah M.M.E. van Kooten, Fitzsimons, Floss, Franke, Garenne, Garvie, Grady, Hartogh, Heays, Herbst, Hily-Blant, Hily-Blant, Ian A. Franchi, Injerd, Iqbal, Ishii, Ivanova, Jes K. Jørgensen, Jon P. Ramsey, Jørgensen, Kazuhide Nagashima, Kebukawa, Keller, Kerridge, King, Krot, Kuga, Lajaunie, Larsen, Laurent, Le Guillou, Lis, Lyons, Martin Bizzarro, Martin Schiller, Marty, Marty, Messenger, Millar, Mumma, Mūller, Nakamura-Messenger, Paton, Piani, Pizzarello, Pizzarello, Pizzarello, Remusat, Remusat, Remusat, Robert, Rodgers, Roueff, Schrader, Shinnaka, Starkey, Susanne F. Wampfler, Søren Frimann, Takeshi Kasama, Terzieva, Tomeoka, Van Kooten, Vollmer, Walsh, Wampfler, Wasson, Weisberg, Wirström, Yabuta, Yang, Zega, Zoltan I. Balogh, Zubavichus   +114 more
core   +3 more sources

Origin and fate of copper in a small Mediterranean vineyard catchment: New insights from combined chemical extraction and δ65Cu isotopic composition [PDF]

, 2013
For centuries, many Mediterranean catchments were covered with vineyards in which copper was widely applied to protect grapevines against fungus. In the Mediterranean-type flow regime, brief and intense flood events increase the stream water discharge by
Aubert, Dominique, Caparros, Jocelyne, Charles, François, El Azzi, Désirée, Guiresse, Agnès Maritchù, Guizien, Katell, Probst, Anne, Probst, Jean-Luc, Viers, Jérôme   +8 more
core   +4 more sources

Characterization of biotite drugs used in traditional medicine

Heliyon, 2020
Temperature-induced mineral alterations are extensively used in traditional pharmaceutical industry. Studies on the traditional heating methods for enhancing pharmaceutical properties and on the toxicity of mineral-based medicines are limited. This study
Apsara Wijenayake, Amarasooriya Pitawala, Ratnayake Bandara, Charmalie Abayasekara   +3 more
doaj   +1 more source

Extraction from aqueous solutions ions of iron and lead by filter loading, created on the basis of steel melting slag

Литьë и металлургия, 2018
The aim of the present paper is investigation of removal of Fe3+ and Pb2+ ions from aqueous media by material on the basis of steel melting slag. It has been established that the process of water purification from Fe3+ and Pb2+ ions by this material ...
A. S. Panasyugin, S. V. Grigor’ev, A. I. Teran, V. N. Anufriev, A. R. Tsyganov, N. P. Masherova   +5 more
doaj   +1 more source

Fluid evolution in CM carbonaceous chondrites tracked through the oxygen isotopic compositions of carbonates [PDF]

, 2017
The oxygen isotopic compositions of calcite grains in four CM carbonaceous chondrites have been determined by NanoSIMS, and results reveal that aqueous solutions evolved in a similar manner between parent body regions with different intensities of ...
Alexander, Alexander, Barber, Benedix, Bland, Bonal, Bunch, Burbine, Clark, Clayton, Clayton, de Leuw, DuFresne, Emery, Fujiya, Fujiya, Guo, Hewins, Horita, Howard, I.A. Franchi, Jenniskens, Johnson, Kasuga, Lauretta, Lee, Lee, Lee, Lee, Lee, Lee, Lindgren, Lindgren, M.R. Lee, Marrocchi, McSween, McSween, N.A. Starkey, P. Lindgren, Palguta, Rubin, Rubin, Starkey, Tomeoka, Tyra, Tyra, Tyra, Velbel, Young, Young   +49 more
core   +2 more sources

Effect of divalent chloride salts on lamellar silica conductivity

Cerâmica, 2013
Silica is an important raw material in the production of soluble silicates, silicon and its derivatives: silicon carbide and silicone, which are converted into the lamellar form using the sol-gel process. This compound, which has been extensively studied
A. C. P. C. de Araujo, M. G. Cavalcante
doaj   +1 more source

Single-particle characterization of ice-nucleating particles and ice particle residuals sampled by three different techniques [PDF]

Atmospheric Chemistry and Physics, 2015
In the present work, three different techniques to separate ice-nucleating particles (INPs) as well as ice particle residuals (IPRs) from non-ice-active particles are compared.
A. Worringen, K. Kandler, N. Benker, T. Dirsch, S. Mertes, L. Schenk, U. Kästner, F. Frank, B. Nillius, U. Bundke, D. Rose, J. Curtius, P. Kupiszewski, E. Weingartner, P. Vochezer, J. Schneider, S. Schmidt, S. Weinbruch, M. Ebert   +18 more
doaj   +1 more source

Synthesis of porous silicates [PDF]

, 1995
The issues of importance and future concern in the synthesis of porous silicates and porous materials that contain a large fraction of silica, e.g. zeolites and other crystalline molecular sieves, are reviewed. The thermodynamics of zeolite synthesis are
Davis­, M. E., Helmkamp, M. M.
core   +1 more source