Results 21 to 30 of about 496,469 (302)
About Some Properties and Constructions of Experimental Designs
Acta Universitatis Lodziensis. Folia Oeconomica, 2016 In this paper, we consider the problems related to the determining plan of the experiment performed according to the model of the chemical balance weighing design under additional assumption that the experimental errors are equally negatively correlated.
Bronisław Ceranka, Małgorzata Graczyk
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Thermodynamic evolution theorem for chemical reactions
Physical Review Research, 2020 The production, exchange, and balance of entropy characterize the thermodynamics of open nonequilibrium systems, ranging from chemical reactions, cells, ecological systems, and Earth-like planets to stars.
David Hochberg, Josep M. Ribó
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Enhanced chemical weathering of rocks during the last glacial maximum: a sink for atmospheric CO2? [PDF]
, 1999 It has been proposed that increased rates of chemical weathering and the related drawdown of atmospheric CO2 on the continents may have at least partly contributed to the low CO2 concentrations during the last glacial maximum LGM..
Probst, Jean-Luc +5 more
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SITUATION OF FLUORIDES RATE IN WATERS AND MAJOR CONSUMED FOOD IN WILAYA EL-OUED
Journal of Fundamental and Applied Sciences, 2015 The effects of mineral salts in the drinking water, beneficial or harmful depending on their concentration, are known for many years and thus the problem posed by fluoride ions in the waters of the region (Fluorosis Dental and ...
A. Zobeidi, A. Messiatfa
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Influence of chemical denudation on hillslope morphology [PDF]
, 2004 [1] Models of hillslope evolution involving diffusion-like sediment transport are conventionally presented as an equation in which the changes in land-surface elevation or soil thickness are balanced by the divergence of soil transport and tectonic ...
Furbish, D. J. +3 more
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Analytical time-stepping solution of the discretized population balance equation
, 2022 The prediction of the particle-size distribution (PSD) of the particulate systems in chemical engineering is very important in a variety of different contexts, such as parameter identification, troubleshooting, process control, design, product quality ...
Jama, Mohamed Ali +4 more
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Atmosphere, 2020 As one of the biggest cities in North China, Jinan has been suffering heavy air pollution in recent decades. To better characterize the ambient particulate matter in Jinan during heavy pollution periods, we collected daily PM2.5 (particulate matter with ...
Shasha Tian +11 more
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, 2020 We propose a population balance model coupled with a mass transfer model to simulate the simultaneous shrinkage and breakage of particles during the reactive dissolution of particle agglomerates in stirred tank. The high-order moment-conserving method of
Buffo, Antonio +3 more
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UM ESTUDO DAS ANALOGIAS SOBRE EQUILÍBRIO QUÍMICO NOS LIVROS APROVADOS PELO PNLEM 2007
Ensaio Pesquisa em Educação em CiênciasEste artigo descreve uma análise crítica das analogias apresenta das para o tópico de equilíbrio químico pelos livros de Química aprova dos pelo PNLEM 2007. Foram localizadas oito analogias, sendo uma delas repetida.
Wilmo Ernesto Francisco Junior +3 more
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The Russian chemical complex: Analysis of the trade balance in 2022 [PDF]
E3S Web of ConferencesThe article provides an analysis of the trade balance of industrial products of the Russian Federation, including the results of 2022. It is concluded that the reason for the lag is the lack of sufficient capacity in Russia for processing base polymers ...
Kiselev Vladimir M. +5 more
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