1. Estimation of the Separation Coefficient of Oxygen Isotopes in Aqueous Salt Solutions

   • V. S. Pokalchuk
   • E. P. Magomedbekov
   • N. N. Kulov

   OriginalPaper 15 January 2021 Pages: 1127 - 1130

   

2. Impinging-Jets Micromixers and Microreactors: State of the Art and Prospects for Use in the Chemical Technology of Nanomaterials (Review)

   • R. Sh. Abiev

   OriginalPaper 15 January 2021 Pages: 1131 - 1147

   

3. Dynamics of Mass Transfer through the Interface between Immiscible Liquids under the Resonance Effect of Ultrasound

   • O. M. Gradov
   • Yu. A. Zakhodyaeva
   • A. A. Voshkin

   OriginalPaper 15 January 2021 Pages: 1148 - 1155

   

4. Nonequilibrium Stage Based Modeling of a Falling Film Distillation Unit

   • C. A. Claumann
   • R. Battisti
   • R. A. F. Machado

   OriginalPaper 15 January 2021 Pages: 1156 - 1172

   

5. Optimum Conditions for Extraction of Chitin and Chitosan from Callinectes amnicola Shell Waste

   • O. A. Olafadehan
   • T. O. Ajayi
   • K. O. Amoo

   OriginalPaper 15 January 2021 Pages: 1173 - 1194

   

6. Recovery of Tartaric Acid from Aqueous Solution by Liquid Membrane Technique: Optimization by Taguchi Design of Experimental Methodology

   • K. Pourkhanali
   • S. Babaie
   • Gholam Khayati

   OriginalPaper 15 January 2021 Pages: 1195 - 1204

   

7. Effect of Metal Fillers on Relaxation Processes in Elastomers

   • T. R. Aslamazova
   • V. A. Kotenev
   • A. Yu. Tsivadze

   OriginalPaper 15 January 2021 Pages: 1205 - 1214

   

8. Developing Energy-Efficient Technologies for Obtaining Organic Substances Based on a Comprehensive Study of the Reaction and Separation Constituents

   • A. V. Frolkova
   • M. A. Mayevskii
   • D. B. Pletnev

   OriginalPaper 15 January 2021 Pages: 1215 - 1222

   

9. Method for Calculating the Density of Mixed Solutions of Strong Electrolytes

   • N. N. Kulov
   • A. V. Ochkin

   OriginalPaper 15 January 2021 Pages: 1223 - 1228

10. A Potential-Integral-Index Algorithm for Analyzing the Pressure Fluctuations of Gas Flows in Complex Pipelines

    • R. R. Kantyukov
    • V. P. Meshalkin
    • O. B. Butusov

    OriginalPaper 15 January 2021 Pages: 1229 - 1234

    

11. Studying the Dependence of the Performance Efficiency of a Claus Reactor on Technological Factors with the Quality Evaluation of Sulfur on the Basis of Fuzzy Information

    • B. B. Orazbayev
    • Zh. Ye. Shangitova
    • A. B. Shagayeva

    OriginalPaper 15 January 2021 Pages: 1235 - 1241

    

12. Tandem Mass Spectrometry in the Technology of Determining Aralosides of Phytoadaptogene Compositions

    • I. V. Kazeev
    • O. A. Bocharova
    • M. A. Baryshnikova

    OriginalPaper 15 January 2021 Pages: 1242 - 1246

    

13. Extension of the Classification of Three-Component Systems Containing Binary Biazeotropic Components and Not Containing Ternary Azeotropes

    • T. V. Chelyuskina
    • A. V. Polkovnichenko
    • D. D. Modurova

    OriginalPaper 15 January 2021 Pages: 1247 - 1255

    

14. Estimating the Multiplicity of the Steady States of a Fermentation Process for Lactic Acid Production at a Given Concentration of the Component Producing the Main Substrate

    • Yu. L. Gordeeva
    • L. V. Ravichev
    • E. L. Gordeeva

    OriginalPaper 15 January 2021 Pages: 1256 - 1266

    

15. Prediction of Sound Speed in Natural-Gas Mixtures Using the CP-PC-SAFT Equation of State

    • I. V. Prikhod’ko
    • A. A. Samarov
    • M. Farzaneh-Gord

    OriginalPaper 15 January 2021 Pages: 1267 - 1275

    

16. Modeling the Solubility of Hydrogen Sulfide in Ionic Liquids Using van der Waals Equation of State

    • Hossein Sakhaeinia

    OriginalPaper 15 January 2021 Pages: 1276 - 1289

    

17. Filler Particle Size and Packaging and Compositions of Filled Polymer Composites with Different Types of Structures and Properties

    • I. D. Simonov-Emelyanov
    • K. I. Kharlamova

    OriginalPaper 15 January 2021 Pages: 1290 - 1296

    

18. Investigation into the Change in the Composition of the Ethylbenzene Feed in a Styrene Production Reactor while Taking into Account the Partial Pressures of the Reactants

    • S. L. Podvalny
    • A. P. Popov
    • E. N. Kovaleva

    OriginalPaper 15 January 2021 Pages: 1297 - 1305

    

19. Acid-Base Properties of Cobalt Ferrite Surface Examined by Different Physicoсhemical Methods

    • K. O. Denisova
    • A. A. Il’in
    • N. N. Smirnov

    OriginalPaper 15 January 2021 Pages: 1306 - 1313

    

20. Experimental and CFD Study of Heat Transfer in Spouted Beds: Analysis of Nusselt Number Correlations

    • J. N. M. Batista
    • R. C. Brito
    • R. Béttega

    OriginalPaper 15 January 2021 Pages: 1314 - 1326

    

21. Influence of Chemical Reaction on Mass Transport in Yield Stress Exhibiting Flow Regime

    • Uzma Arif
    • M. Nawaz
    • Shafiq Hussain

    OriginalPaper 15 January 2021 Pages: 1327 - 1339

    

22. Numerical Analysis of Multiple Steady States, Limit Cycles, Period-Doubling, and Chaos in Enzymatic Reactions Involving Oxidation of L-tyrosine to Produce L-DOPA

    • Yuan-Hong Luo
    • Hsing-Ya Li

    OriginalPaper 15 January 2021 Pages: 1340 - 1352