Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Nicolae APOSTOLESCU"'
Publikováno v:
INCAS Bulletin, Vol 16, Iss 3, Pp 3-18 (2024)
The present paper aims to conduct an experiment that compares different methods of detecting objects in images. Programs were developed to evaluate the efficiency of SURF, BRISK, MSER, and ORB object detection methods. Four static gray images with su
Externí odkaz:
https://doaj.org/article/bb13a7d6226543b38466ee8054809ae1
Publikováno v:
INCAS Bulletin, Vol 13, Iss 3, Pp 3-12 (2021)
In this paper, we propose a simulation application that allows an aerial vehicle to land autonomously on a moving platform in the presence of uncertainties and disturbances. We have tested our method with various speeds and positions for the landing
Externí odkaz:
https://doaj.org/article/a22c1fba095445feba2ee318ea587351
Autor:
Nicolae Apostolescu, Ramona Elena Tataru Farmus, Maria Harja, Mihaela Aurelia Vizitiu, Corina Cernatescu, Claudia Cobzaru, Gabriela Antoaneta Apostolescu
Publikováno v:
Materials, Vol 16, Iss 2, p 850 (2023)
CeO2/ZnO-based photocatalytic materials were synthesized by the sol-gel method in order to establish heterojunctions that increase the degradation efficiency of some types of antibiotics by preventing the recombination of electron–hole pairs. The s
Externí odkaz:
https://doaj.org/article/74a0f498056448a7b3912f8a17bfd0bb
Publikováno v:
INCAS Bulletin, Vol 11, Iss 4, Pp 27-36 (2019)
It is to be expected that space robotics systems will develop more and more in the future spatial applications. One of the most challenging and risky missions for spacecraft is to perform autonomously Rendezvous and Docking (RvD) in space. This paper
Externí odkaz:
https://doaj.org/article/929c1afb89ed42dc81ebc54549b63f0e
Autor:
Nicolae APOSTOLESCU, Daniela BARAN
Publikováno v:
INCAS Bulletin, Vol 8, Iss 1, Pp 13-21 (2016)
The main goal of this paper is to present the implementation of the Sammon algorithm developed for finding N points in a lower m-dimensional subspace, where the original points are from a high n-dimensional space. This mapping is done so interpoints
Externí odkaz:
https://doaj.org/article/da83aa5ff77a4c63a607c530a1abd195
Autor:
Nicolae APOSTOLESCU, Daniela BARAN
Publikováno v:
INCAS Bulletin, Vol 6, Iss 3, Pp 3-11 (2014)
The main goal of this paper is to present the implementation of an algorithm developed to calculate the Hurst exponent (H), applied here to characterize the pixel spectrum from hyperspectral image. Because a hyperspectral reflectance curve from each
Externí odkaz:
https://doaj.org/article/a052b2ad13544bbdb4c776d164292ac4
Publikováno v:
INCAS Bulletin, Vol 5, Iss 1, Pp 19-28 (2013)
This work describes a computer application to calculate the values of the factors which are used to determine the tensile rupture load of a lug under axial, transverse or oblique loading. It can be used as a procedure for identifying potential failur
Externí odkaz:
https://doaj.org/article/55d52af379c44968a29d928253ef5465
Publikováno v:
INCAS Bulletin, Vol 4, Iss 3, Pp 31-40 (2012)
The hundreds of parameters that are recorded by Flight Data Recorders (FDR) during flight facilitates the investigation of incidents and also provides the opportunity to use the recorded data to predict future aircraft behaviour.Current researches ar
Externí odkaz:
https://doaj.org/article/fa10ed5c842642a09428f30b3e7fe357
Autor:
Nicolae APOSTOLESCU, Vasile ISTRATIE
Publikováno v:
INCAS Bulletin, Vol 4, Iss 2, Pp 53-60 (2012)
In this paper, the take-off and landing segments of an airplane trajectory are studied. The equations of motion for the ground run are derived and solved for distance. Then, specific formulas are obtained for the take-off ground distance and time and
Externí odkaz:
https://doaj.org/article/d4dd6016de2242ed906bf758f0cf8e50
Publikováno v:
INCAS Bulletin, Vol 3, Iss 1, Pp 15-22 (2011)
The main objective of this paper is to develop a set of tools and integrate techniques in asoftware package dedicated to stress analysis of aeronautical structures.
Externí odkaz:
https://doaj.org/article/1f96c9be300d4120a84377a2103e00eb