VOLUME 5/2020, ISSUE 3

This work is licensed under a Creative Commons Attribution 4.0 International License. The Journal is included in the international database: – Directory of Open Access Journals (DOAJ); – EBSCO, Publishing Inc.; – Open Academic Journal Index (OAJI); – Index Copernicus.

Editor-in-chief: Valeriu V. JINESCU  University Politehnica of Bucharest Co-editor: Florin Teodor TANASESCU University Politehnica of Bucharest Honorary editor: Mihai MIHAITA President of Technical Sciences Academy of RomaniaManaging editor: Ioan Ganea AGIR Publishing House Journal of Engineering Sciences and Innovation is a quarterly multidisciplinary scientific journal, print and electronic: – covers all disciplines of engineering sciences; – free of charge. No processing and submission charges; – open access; – hard copy version, ISSN 2601 -6699; – on-line version, ISSN-L2537 – 320X; – high visibility, anyone can read and/or download a paper; – jesi@astr.ro

CONTENTS

A. Mechanical Engineering

Paul Doru Barsanescu, Nicoleta Iftimie, Rozina Steigmann, Gabriel Silviu, Dobrescu, Narcis Andrei Danila, Adriana Savin
Damage detection of critical zones of wind turbine blades based on the complementary methods

197

B. Chemical Engineering, Materials Science and Engineering

Ioan Ilca, Diana Bistrian
Contributions to the ingots’ heating study in industrial furnaces.

205

Mihai Ovidiu Cojocaru; Tudor Andrei Coman; Mihai Branzei; Leontin Nicolae Druga
The results prediction of iron oxides aluminothermy

221

Maria Harja, Elisabeta Hultuană, Nicolae Apostolescu, Gabriela Antoaneta Apostolescu, Ramona-Elena Tătaru – Fărmuș
Viscosity of potassium carbonate solutions promoted by new amines

239

C. Environmental Engineering and Energy

Anca Duta, Cristina Bogatu, Ioana Tismanar, Dana Perniu, Maria Covei
Vis-active photocatalytic composites for advanced wastewater treatment

247

E. Electrical and Electronics Engineering

Adrian Adăscăliței, Sebastian Teodor Arădoaiei, Petru Ion Todos, Valeriu Dulgheru
Blended teaching and learning approach applied to electrical and computer engineering education

253

F. Petroleum and Mining Engineering

Dan Rădăcină, Lazăr Avram
Reverse method for determination of the qualitative wear occurring in the intermediate casing installed in oil and gas wells

263

Valentin-Paul Tudorache, Niculae-Napoleon Antonescu
Challenges of oil and gas exploration in the Arctic

273

AGIR Publishing House