Abstract: The present invention relates to a method for obtaining nanoparticles of metal oxides dispersed in fibers comprising preparing a stable gel from nanoparticle precursors, immersing the fibers in the stable gel and subjecting them to a hydrothermal treatment until the fibers are coated with the nanoparticles in a homogeneous way. The obtained fibers are used in the degradation of organic pollutants.
Abstract: The present invention relates to a system and method for the automated inspection of geometric parameters of railway wheels rolling on a track by artificial vision techniques. The present invention uses a structured light source (10) that illuminates a line of light (12) upon a fraction of the surface of revolution (3) of a wheel (1), a CCD camera (20), which captures an image (21) of the illuminated area, and a data processing system that records, digitalizes, geometrically corrects and reconstructs information of the surface of revolution (3) that is not recorded in the image (21), in order to obtain a numeric description of the complete transverse section of the wheel (1) represented by a reconstructed profilogram (500) for calculating the geometric parameters of the wheel (1).
Type:
Grant
Filed:
March 18, 2014
Date of Patent:
October 2, 2018
Assignees:
Universidad EAFIT, Empresa de Transporte Masivo del Valle de Aburra Limitada—Metro de Madellin Ltda
Inventors:
Ronald Mauricio Martinod Restrepo, German René Betancur Giraldo, Leonel Francisco Castañeda Heredia, Adalberto G. Díaz, Iván D. Arango
Abstract: The present invention refers to a process designed to increase the production of plant growth-promoting microorganisms of the Bacillus genus, using a culture medium poor in nutrients and with specific environmental conditions, allowing to obtain a greater amount of biomass and/or spores, which can be used to prepare solid or liquid compositions to be applied to plants, aiming to promote their growth and/or counteract the effect of phytopathogenic agents.
Type:
Grant
Filed:
August 28, 2014
Date of Patent:
December 12, 2017
Assignees:
UNIVERSIDAD EAFIT, ASOCIACION DE BANANEROS DE COLOMBIA (AUGURA)
Inventors:
Valeska Villegas Escobar, Sandra Mosquera López, Luisa Fernanda Posada Uribe, Educrecia Maria Ramírez Correa, Tatiana Zazini Cuellar Gaviria, John Jairo Mira Castillo, Luz Edith Argel Roldán
Abstract: The present invention discloses a device for evaluating the technical condition of the tread of moving railway vehicles, especially for automated inspection of the loss of roundness of each wheel of circulating railway vehicles, in which a point of measurement is used which generates a signal proportional to rail deformation when a wheel arch passes over said point. Then the comparator system compares the measured signal with a wheel pattern without any roundness defects, which is then transmitted over a data network that associates the wheel identification information, with the wheel defect data generated by the comparator system each time the wheel passes over said measurement area.
Type:
Grant
Filed:
April 1, 2014
Date of Patent:
September 5, 2017
Assignee:
Universidad EAFIT
Inventors:
German René Betancur Giraldo, Leonel Francisco Castañeda Heredia, Pedro Fernando Melo
Abstract: The present invention refers to a process for increasing the production of biomass and metabolites of microorganisms of Bacillus sp. species. Obtained metabolites are lipopeptide compounds of the fengycin, surfactin, and iturin families, which exhibit antimicrobial activity. The invention further includes biocidal compositions comprising Bacillus subtilis EA-CB 0015, Bacillus amyloliquefaciens EA-CB0959, and/or metabolites thereof, either alone or together with other biocidal agents, and the use of these compositions for the treatment of diseases caused by various phytopathogenic agents, including Mycosphaerella fijiensis, in a variety of crops.
Type:
Application
Filed:
May 2, 2014
Publication date:
March 17, 2016
Applicant:
UNIVERSIDAD EAFIT
Inventors:
Isabel Cristina CEBALLOS ROJAS, Valeska VILLEGAS ESCOBAR, Sandra MOSQUERA LÓPEZ, John Jairo MIRA CASTILLO, Jaime Andrés GUTIERREZ MONSALVE, Juan José ARROYAVE TORO, Luisa Fernanda POSADA URIBE