VOLUME 3/2018,ISSUE 1

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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 President of Technical Sciences Academy of RomaniaManaging editor: Ioan Ganea AGIR Publishing HouseJournal 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

Hadăr Anton, Cormoş Raul, Petrescu Horia-Alexandru
Numerical evaluation of the performances of a multilayered
honeycomb composite material in an aeronautical engineering application

1

Marin Alexandru
Deformation and cutting process of interior surfaces

10

Roşculeţ Răzvan-Tudor, Fetecău Cătălin
Techniques for rapid prototyping of scale models of blades
for wind turbines

15

B. Chemical Engineering, Materials Science and Engineering

Dobre Tănase, Pârvulescu Oana Cristina, Răducanu Cristian, Trică Bogdan,
Jinescu Gheorghiţa
Stochastic modelling of polysaccharide hydrolysis

25

Thalmaier Gyorgy, Sechel Niculina, Moldovan Valentin, Vida-Simiti Ioan
Gradual porous membranes obtained by powder sedimentation

39

E. Electrical and Electronics Engineering

Dobre Robert-Alexandru, Stanomir Dumitru
Novel method for determining the position of speakers in a room
using beamforming

50

Hantila Ioan Florea, Maricaru Mihai, Stanculescu Marilena, Minciunescu Paul
The magnetic flux-voltage characteristic computation for a magnetic
circuit branch

57

F. Petroleum and Mining Engineering

Lahchava Omar, Ilias Nicolae
Complex calculation method of temperature, mass transfer potential
and relative humidity for ventilation flow in subway

67