VOLUME 10/2025 ISSUE 4

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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
University Politehnica of Bucharest
Co-editor: Florin Teodor TANASESCU
University Politehnica of Bucharest
Honorary editor: Mihai MIHAITA
Honorary President of Technical Sciences Academy of Romania
Managing editor: Dan BOGDAN
AGIR Publishing House

Quarterly multidisciplinary scientific journal:

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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).

B. Thermal Science and Engineering
Nicolae Vaszilcsin, Gabriela-Alina Dumitrel, Maria Mihăilescu, Dănuţ-Ionel Văireanu

On the appropriateness of applying the First and Second Law of Thermodynamics to the universe as a whole

359

C. Chemical Engineering, Materials Science and Engineering
Teodora Rad, Ioan Așchilean, Raluca Felseghi

Circular economy and sewage sludge from wastewater treatment plants – Review

375

Serghei Talpă, Natalia Pînzaru

Development of the experimental model for the fractionation of powderful products (derivatives) in the milling industry

383

Onici Adrian-Emanuel, Lală Cosmin, Geantă Victor, Ștefănoiu Radu, Voiculescu Ionelia

Effect of microalloying with titanium on the properties of 17-4PH martensitic stainless steel

391