Z. Kaláb, M. Stolárik, Institute of Geonics, Academy of Sciences, Czech Republic, B. Pandula, J. Kondela, Technical University of Košice, Institute of Geosciences, Slovakia The article summarizes experimental seismological measurements of vibration eff ects of blasting operations. During tunnel excavation can watch a variety of eff ects on the near or distant surroundings of the building. One o...

7 Hull cleaning before repainting is a key operation in the 8 maintenance of ships. For more than a decade, a means to 9 improve this operation has been sought through robotization 10 and the use of different techniques such as grit blasting and 11 ultra high pressure water jetting. Despite this, it continues to 12 be standard practice in shipyards that this process is carried 13 out manually. ...

This paper describes approaches to improve the performance of one of the most common and increasingly important aspects of the Human Genome Project (HGP) — large-volume, batch comparison of DNA sequence data. This basic comparison operation, usually carried out by the well-known BLAST program on one subject sequence against the internationally available databases of nearly five million target s...

like most limestone mines, which produce the raw materials required for cement companies, the transportation cost of the raw materials used in the shahrood cement company is high. it has been tried to build the crushing and grinding plant close to the mine as much as possible. on the other hand, blasting has harmful effects, and the impacts of blast-induced damages on the sensitive machinery, e...

Powder blasting, or Abrasive Jet Machining (AJM), is a technique in which a particle jet is directed towards a target for mechanical material removal. It is a fast, cheap and accurate directional etch technique for brittle materials like glass, silicon and ceramics. By introducing electroplated copper as a new mask material, the feature size of this process was decreased. It was found that blas...

Introduction: Impact structures are unlike most geologic features because there commonly is little or no surface manifestation of their complex crater-filling stratigraphy. Further, many impact structures lie completely buried by as much as several hundred meters of sediment. Frequently, the only means of accessing tangible material from within such structures is by drilling. Of the 172 proven ...

The objectives of this study were to characterize change in surface properties of tetragonal zirconia polycrystals (TZP) after hydrophilic treatment, and to determine the effect of such changes on initial attachment of osteoblast-like cells. Roughened surfaces were produced by alumina-blasting and acid-etching. Hydrophilic treatment comprised application of immediately after blasting and acid-e...

Preliminary notes This paper aims to establish the parameters of optimization and geometrical improvements for the micro-geometry of solid carbide drills through the application of sand blasting process. The effects of sand blasting over the cutting edge and also upon the micro geometry of the tool body are to be taken into consideration. This process is one of the most common ones used in the ...

This paper presents work in progress on an approach to the problem of recognizing blasting caps in x-ray images. An analysis of functional properties of blasting caps was used to design the representation space, which combines intensity and shape features. Recognition proceeds in two phases. The rst phase is a bottom-up process in which low intensity blobs are used as attention-catching devices...