VOLUME 11/2026 ISSUE 2

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Journal of Engineering Sciences and Innovation (JESI) is indexed in the following databases for academic journals:

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Editing: Ing. Iolanda Constanţa PANAIT

Cover: Mihai GĂZDARU

Technical Sciences Academy of Romania

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Editor-in-chief: Valeriu V. JINESCU
National University of Science and Technology Politehnica of Bucharest
Co-editor: Carmen MATEESCU
Technical Sciences Academy of Romania
Honorary editor: Mihai MIHAITA
Honorary President of Technical Sciences Academy of Romania
Honorary co-editor: Florin Teodor TANASESCU
Technical Sciences Academy of Romania
Managing editor: Dan BOGDAN
AGIR Publishing HouseEditorial board and scientific committe

Quarterly multidisciplinary scientific journal:

– 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;
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Copyright. Journal of Engineering Sciences and Innovation (JESI) has the copyright for all the published papers; it is a Gold Open Access Journal.
The readers are free to download, copy and distribute the paper content, even commercially, as long as they credit you for the original creation and cited the paper author(s).

Journals fusion. Starting January 01, 2022 the journals mentioned below fuse with JESI and terminate their activity. The issues specific to each journal will be included in the appropriate section of the JESI:

‒ the journal Termotehnica / Thermal Engineering / Thermotehnique, will be included in section Thermal Science and Engineering;

‒ the Romanian Journal of Mechanics will be included in the section Mechanical Engineering;

‒ the Journal Telecommunications will be included in the section Electrical and Electronics Engineering, Computer Sciences and Engineering (starting with nr. 3/2022 of JESI journal).

A. Mechanical Engineering

MARIUS BREBENEL, CORNELIU BERBENTE, SORIN BERBENTE
An analytical method of estimating the aerodynamic properties of airfoils on an extended range of angles of attack

135

SERAFIM MUNTEAN, SEBASTIAN POP, GHEORGHE OANCEA
Molds manufacturing for UAV parts using innovative technologies

149

B. Thermal Science and Engineering

AMBRO MIRCEA VASILE, AȘCHILEAN IOAN
Analysis of heat pump performance coefficients

159

MIRCEA CRISTIAN DUDESCU, CRISTIAN VILĂU
Modelling and experimental analysis of a U-shaped electro-thermal actuator

171

C. Chemical Engineering, Materials Science and Engineering

MIHAI OVIDIU COJOCARU, MIHAI BRANZEI, SORIN CIUCA
Theoretical and practical aspects regarding the obtaining of granules with a metastable structure based on tungsten carbides, intended for the production of relit-type electrodes