Ferenc GASPAR

C15-STUDIU PRIVIND TESTAREA ȘI EVALUAREA PERFORMANȚELOR UNUI PROTOTIP DE MAȘINĂ DE SPART NUCI

Această intrare a fost publicată în 2025 și etichetată Ferenc GASPAR Marius-Florin TODORAN la de

TESTING AND PERFORMANCE EVALUATION OF A NUT-CRACKING MACHINE PROTOTYPE
Abstract: This study presents the design, construction and experimental testing nut-cracking machine prototype intended for household and small-scale farm applications (with emphasis on walnut, Juglans regia). The mechanical solution consists of a rotating cylindrical shaft and an adjustable reaction plate mounted inside a cracking chamber. A representative sample of one hundred walnuts was measured (dimensional statistics) and nine experimental trials were conducted with cracking gap settings between 26 mm and 41 mm; each test processed 1 000 g of nuts and categorized in fully cracked, partially cracked and intact kernels. Experimental analysis identified a narrow optimal gap range (≈30–31 mm) that maximizes intact-kernel yield. The prototype is suitable for household and small-scale farm use and can be further developed toward automation and higher productivity.
Keywords: nut-cracking machine, prototype, experimental testing, adjustment optimization, performance evaluation
Cuvinte cheie: mașină de spart nuci, prototip, testare experimentală, optimizare reglaj, evaluare performanță.

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C4-STUDIU PRIVIND POSIBILITĂȚILE DE UTILIZARE A TELEDETECȚIEI ÎN AGRICULTURĂ

Această intrare a fost publicată în 2025 și etichetată Alexandru FLONDOR Ferenc GASPAR la de

STUDY ON THE POSSIBILITIES OF USING REMOTE SENSING IN AGRICULTURE
Abstract: The paper presents an analysis of the possibilities of using remote sensing in agriculture, with a focus on the ability of multispectral satellite images to provide essential information on the state of vegetation, crop evolution and the identification of areas affected by biotic or abiotic stress. The main types of sensors and platforms used in modern agriculture, such as Sentinel, Landsat and MODIS, are analyzed, as well as the most frequently applied algorithms, such as NDVI, EVI and NDWI. The study highlights the benefits of remote sensing in optimizing agricultural processes, reducing costs and supporting managerial decisions. By integrating satellite data with GIS and analytical models, agriculture becomes more precise, sustainable and predictive.
Keywords: emote sensing, NDVI, satellite imagery, precision agriculture, vegetation index
Cuvinte cheie: teledetecție, NDVI, imagini satelitare, agricultură de precizie, indice de vegetație

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C8 – REALIZAREA PRIN INGINERIE INVERSĂ CU IMPRIMANTA 3D A UNUI SUBANSAMBLU DIN PLASTIC PENTRU AUTOVEHICULE

Această intrare a fost publicată în 2024 și etichetată Ferenc GASPAR Vasilica VALER la de

Abstract: The aim of this work was to reverse engineer an assembly of
parts with the help of a 3D printer. For this purpose, as a set of parts, the handle
from the window lifting mechanism for a vintage car, Dacia 1310, was chosen.
The stages of reverse engineering in this case involved obtaining the dimensions
of the parts, 3d modeling in SolidWorks, finite element analysis and the
constructive optimization of the handle, respectively the physical creation of the
parts on the 3d printer and their subsequent assembly.

Keywords: reverse engineering, 3D printing, finite element analysis.
Cuvinte cheie: inginerie inversă, printare 3D, analiză cu element finit.

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C5 – STUDIU PRIVIND INFLUENȚA PARAMETRILOR PROCESULUI DE IMPRIMARE 3D ASUPRA PRECIZIEI SUPRAFEȚELOR CIRCULARE

Această intrare a fost publicată în 2024 și etichetată Alexandru-Florin MUNTEAN Ferenc GASPAR la de

Abstract: The aim of this work is to analyze and optimize the 3D printing
process, focusing on the influence of printing parameters on the accuracy of
printed parts. Experiments were carried out with the Creality Ender 3 V2 Neo
printer, using various settings optimized by the RSM Design Expert software.
Two types of materials were used, PLA and PETG. The printed parts were
measured with a digital caliper and the deviations were calculated to determine
the best combinations of parameters. The size deviations of PLA parts were
smaller compared to PETG, printing nozzle size of 0.4 mm and a printing speed
of 30 mm/s produced the best results, fill degree of 90% was found to be optimal
for reducing deviations.

Keywords: FDM 3D printing, printing parameters, 3D printing process
Cuvinte cheie: printare 3D FDM, parametrii de printare, proces de printare 3D

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