Results 11 to 20 of about 16,003 (309)

The effects of MgO, Na2O and SO3 on industrial clinkering process: phase composition, polymorphism, microstructure and hydration, using a multidisciplinary approach [PDF]

, 2019
Preprint publicado en: Materials Characterization Volume 155, September 2019, 109809The present investigation deals with how minor elements (their oxides: MgO, Na2O and SO3) in industrial kiln feeds affect (i) chemical reactions upon clinkering, (ii ...
Alessandro, Pavese, Gomez-de-la-Torre, Maria de los Angeles, Marco, Cantaluppi, Matteo, Galimberti, Maurizio, Marchi, Nicoletta, Marinoni, Segata, Monica   +6 more
core   +1 more source

Reduction of alkalies in portland cement

Materiales de Construccion, 1950
No ...
E.R. Holden
doaj   +1 more source

Hydrogeochemical Characteristics of Spring Waters for Irrigation, Gökpınar Basin Case, Denizli, Turkey

Journal of Agricultural Sciences, 2021
In this study, a detailed hydrochemical evaluation has been made to determine the chemical processes of spring waters and their suitability for irrigation.
Suat Taşdelen
doaj   +1 more source

Changes in the acid-base balance and lactate concentration in the blood in amateur ultramarathon runners during a 100-km run

Biology of Sport, 2015
The aim of this study was to analyse the acid-base balance and partial pressure of blood gases of participants during a 100-km run. Fourteen experienced amateur ultramarathon runners (age: 43.36±11.83 years; height: 175.29±6.98 cm; weight: 72.12±7.36 kg)
Z Jastrzębski, M Żychowska, A Konieczna, W Ratkowski, Ł Radzimiński   +4 more
doaj   +1 more source

Inversionless gain in a three-level system driven by a strong field and collisions [PDF]

, 2000
Inversionless gain in a three-level system driven by a strong external field and by collisions with a buffer gas is investigated. The mechanism of populating of the upper laser level contributed by the collision transfer as well as by relaxation caused ...
A K Popov, Arkhipkin V. G., Atutov S. N. ., Atutov S. N. ., B Wellegehausen, Bonch-Bruevich A. M., Gao Jin-yue, Glushko B. A. ., Glushko B. A. ., Heller Yu. I., Heller Yu. I., Kielkopf J. F., Klyshko D. N., Kocharovskaya O., Müller-Wirts Th., Müller-Wirts Th., Müller-Wirts Th., Popov A. K., Popov A. K., Popov A. K., Popov A. K., Popov A. K., Popova T. Ya., Popova T. Ya., Popova T. Ya., Popova T. Ya. ., Popova T. Ya. ., Rautian S. G., Rautian S. G., S A Myslivets, Zelikovich I. S., Zhang Han-zhuang   +31 more
core   +2 more sources

Chemical diffusion of fluorine in melts in the system Na2OAl2O3SiO2 [PDF]

, 1985
The volatilization of fluorine from three melts in the system Na2OAl2O3SiO2 has been investigated at 1 atm pressure and 1200–1400°C. The melts chosen have base compositions corresponding to albite, jadeite and a peraluminous melt with 75 mole % SiO2 ...
Al-Dulaimy, Angell, Arzi, Bailey, Barlow, Bond, Christiansen, Christopher M. Scarfe, Crank, Delaney, Dingwell, Donald B. Dingwell, Dunn, Eadington, Harris, Hofmann, Hunnold, Jambon, Karsten, Kogarko, Kovalenko, Kumar, Lanford, Magaritz, Manning, Navrotsky, Riebling, Seifert, Shaw, Shimizu, Smith, Taylor, Watson, Wayne Burnham, Winchell   +34 more
core   +1 more source

Hydrogeochemical status and geoelectrical characteristics of the shallow aquifers of Kalanad Basin, Kasaragod, Kerala, India

Applied Water Science, 2021
Groundwater demand has increased due to overpopulation and intensive irrigation which resulted in decline of water resources and deterioration of water quality.
S. Anoop, C. Ashwathi, V. Haritha Baburaj, Resma S. Pillai   +3 more
doaj   +1 more source

Petrogenesis of Amphibolite/Hornblendite Dikes in Qala-Diza Area, Iraqi Kurdistan Region

Iraqi Geological Journal, 2023
The amphibolite and hornblendite dikes occur as part of the igneous complexes of Bulfat Ophiolite within the Zagros Suture Zone, NE Iraq. The igneous complex is part of the upper allochthonous ophiolite terrane within the second unit of the ...
Jolyana Petros, Nihad Karo
doaj   +1 more source

Geochemistry and geodynamic setting of Paleoproterozoic granites of Lesser Garhwal Himalaya, India

JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2019
The granite and gneisses rocks are well exposed around Toneta, Tilwara and Chirbatiyakhal region in the Lesser Garhwal Himalaya have less studied which consider as Paleoproterozoic age.
Sumit Mishra, Vinod K. Singh, Alexander I. Slabunov, H. C. Nainwal, Pradip K. Singh, Neeraj Chaudhary, D. C. Nainwal   +6 more
doaj   +1 more source

A Lifetime Prediction Method of Pressured Gas Polyethylene Pipes by Strain-Hardening Modulus and Tensile Test

Applied Sciences, 2023
In recent years, polyethylene (PE) pipes have been widely utilized for urban natural gas transmission. However, as the use of high-density polyethylene (HDPE) pipes increases, their service life and long-term performance assessment have become one of the
Wen-Shen Ran, Li Niu, Yang Wang, Nan Lin, Guo-Wei Feng, Hui-Qing Lan   +5 more
doaj   +1 more source