Modern production of structural parts in the aeronautic industry is characterized by mechanically optimized structures that can be complicated to inspect due to complex geometries and/or complex materials. Developing NDT procedures is thus more challenging and could become costly without tools to help NDT design and performance predictions. Simulation is a major asset to help engineers to evalu...

Traditional online wheel-set ultrasonic inspection method and inspection technology can not meet the new requirement of High Power Locomotive wheel-set online. In this article, features of locomotive wheel and defect distribution are analyzed, and a more strictly online inspection requirement is put forward. Based on which, an optimized multi arrangement of phased array and conventional ultraso...

Remote sensing plays an important role in mineral exploration. One of its proven applications is extracting host-rock lithology and alteration zones that are related to porphyry copper deposits. An Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) was used to map the Baogutu porphyry deposit alteration area. A circular alteration mineral zoning pattern was clearly observed ...

Methods for extracting mineralized alteration information using remote sensing images have recently become both efficient and cost-effective. Technology involving the extraction of based on multi-spectral data has been widely practiced effectively verified. In recent years, research fine mineral methods hyperspectral also rapidly developing. The Yulong copper belt is a porphyry located in China...

Champeh salt dome is located 30 km northwest of Bandar Lengeh, east Hormozgan province, Iran. Iron ores and several alterations can be found in this dome, which consists evaporitic volcanic sequences the Hormoz series Pabdeh-Jahrom, Asmari, Gachsaran, Mishan formations. The existing geological maps do not provide comprehensive details mineralization, alteration, various lithologies dome. Theref...

efforts to enhance oil recovery through wettability alteration by nanoparticles have been attracted inrecent years. however, many basic questions have been ambiguous up until now. nanoparticlespenetrate into pore volume of porous media, stick on the core surface, and by creating homogeneouswater-wet area, cause to alter wettability. this work introduces the new concept of adding znonanoparticle...

SIFT and SURF image matching were used in many industries such as survey mapping, geology, medical automotive. Multispectral sensors offered today become new challenge for researchers to study the performances of algorithms on multispectral image. Basically, consists more than three bands. As a result, differences between those bands leads nonlinear intensity images. Both algorithm detectors us...