Lidia NEDELONI

34-8 STUDIU PRIVIND REALIZAREA PRACTICĂ A UNUI AMPLIFICATOR AUDIO DE PUTERE – Partea I

Această intrare a fost publicată în 2018 Volumul 34 și etichetată Alexandru SZUCS Lidia NEDELONI Luminița BARBONI Marian-Dumitru NEDELONI la de

STUDY REGARDING THE SELF-CONSTRUCTION
OF AN AUDIO POWER AMPLIFIER – Part I
This paper presents a study regarding the self-construction of an audio power amplifier, where beside the theoretical part regarding the electronic devices and electronic circuits, the motivation of research was mentioned, some current and future trends in power amplifiers were describes respectively, the initial model of the studied amplifier as well the 3D modeling of the audio power amplifier (2 x 100 W) were presented.
Cuvinte cheie: studiu, realizare practică, amplificator audio de putere
Keywords: study, self-construction, audio power amplifier

Descarcare text

30-18 CERCETĂRI EXPERIMENTALE DE EROZIUNE CAVITAŢIONALĂ PE UN OŢEL ALIAT DE ÎMBUNĂTĂŢIRE CU UN CONŢINUT DE 97,2 % FIER

Această intrare a fost publicată în 2016 Volumul 30 și etichetată Adrian PELLAC Diana MICLIUC Ionela PELEA Lidia NEDELONI Luminiţa HAŢIEGAN Sorin-Laurenţiu BOGDAN la de

CAVITATION EROSION EXPERIMENTAL RESEARCH ON AN
IMPROVEMENT ALLOY STEEL WITH 97.2% IRON CONTENT
This paper presents the cavitation erosion experimental research on an
improvement alloy steel. The chemical compositions, also the name of this steel,
were identified using a spectrometer. After this analysis, iron content was 97.2 %
and the name of this steel has been identified as 41Cr4. The results are in tabular,
by graphic, as well as images and macrostructures presented and compared.
Keywords: cavitation erosion, 97,2 % Fe, macrostructure
Cuvinte cheie: eroziune cavitaţională, 97,2 % Fe, macrostructura

Descărcare text