VOLUME 4/2019,ISSUE 3

This work is licensed under a Creative Commons Attribution 4.0 International License. The Journal is included in the international database: DOAJ (Directory of Open Access Journals)

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

Bostan Ion
Development of precessional transmissions from invention to
applications

http://doi.org/10.56958/jesi.2019.4.3.219

219

Ionel Staretu
New experimental and minimum mathematical bases for human gripping and micromanipulation
http://doi.org/10.56958/jesi.2019.4.3.247

247

B. Chemical Engineering, Materials Science and Engineering

Mateescu Carmen, Dima Andreea-Daniela, Pârvulescu Oana Cristina
Improving the biogas performance of selected waste materials by substrate
ratio optimization and microalgae addition
http://doi.org/10.56958/jesi.2019.4.3.263

263

Ioan Ilca, Daniela Miloştean
Improving the manufacturing technology of structural steels
http://doi.org/10.56958/jesi.2019.4.3.273

273

Petru Moldovan, Mihai Buţu
Thermodynamics of in situ formation of TiB2 particulates in complex
aluminium alloys for aeronautics
http://doi.org/10.56958/jesi.2019.4.3.285

285

E. Electrical and Electronics Engineering

Claudia-Adina Bojan-Dragos, Elena-Lorena Hedrea, Radu-Emil Precup
TP–Based model transformation and gain-scheduling control of
electromagnetic actuated clutch systems
http://doi.org/10.56958/jesi.2019.4.3.301

301

F. Petroleum and Mining Engineering

Carsten Drebenstedt, André Simon, Nils Hoth, Peter Jolas
Innovative approach to reduce acid mine water drainage (AMD) and dump
failures on example of German lignite mining
http://doi.org/10.56958/jesi.2019.4.3.313

313

Grigorov Otto Anishchenko Galina, Petrenko Nadiia, Strizhak Vsevolod, Turchyn Olha,
Strizhak Marjana, Okun Anton
Testing of hydrostatic drive of cranes mechanisms
http://doi.org/10.56958/jesi.2019.4.3.313

331

AGIR Publishing House