Introduction In recent years there have been major changes in the composition of cargo to the point where, in Europe, semi-finished products (e.g. car parts) and finished goods represent the greatest transport demand. This type of cargo is typically of lower density and higher value (LDHV) than previous goods and requires faster and more reliable transportation. Currently, LDHV goods are predom...

The subject of petroleum storage tank fires has gained a great deal of attention due to the high cost of petroleum, and the consequent disruption of petroleum production; therefore, much of the current research has focused on petroleum storage tank fires. Also, the number of petroleum tank fires is oscillating between 15 and 20 fires per year. About 33% of all tank fires are attributed to light...

The inspection of a storage tank floor is a time consuming and expensive procedure, mainly due to necessity to empty and to clean the tank before an inspection. For this purpose a long range ultrasonic technique based on Lamb waves may be applied. Such an approach is used for inspection of pipes and can cover the distances up 100m. However the storage tanks are much more complicated structures ...

Original scientific paper This paper presents designing of spherical tank using combination of analytical procedure with FEM analysis and experimental testing in order to minimize design time and verify design strength. Analytical procedure for calculation of the tank strength in the initial stages of design process is briefly presented. Based on analytical results, tank is dimensioned and FEM ...

Thermodynamic analysis and numerical modeling of hurricane intensity has shown that its is controlled by the enthalpy transfer from the ocean surface and by drag. Direct measurements of drag, evaporation, and sensible heat transfer are not easily performed on the high seas. Therefore, a wind wave tank has been constructed in which a few aspects of a tropical storm are simulated. The air velocit...

There is an increasing interest in using ultrasonic guided waves to assess the structural degradation of above-ground storage tank floors. This is a non-invasive and economically viable means of assessing structural degradation. Above-ground storage tank floors are ageing assets which need to be inspected periodically to avoid structural failure. At present, normal-stress type transducers are b...

(1) Holmes knows that Mary stole the bicycle. Most philosophers of language with an interest in epistemology would have said, until very recently, that an utterance of (1) semantically expresses a proposition that is true if and only if Holmes (h) and the proposition that Mary stole the bicycle (p) are related by the binary relation of knowing (Kxy), so that the logical form of (1) is Khp. But ...

Leibniz wrote in 1679: “I consider that we need yet another kind of analysis, : : : which deals directly with position.” He called it “geometry of position”(geometria situs). The first convincing example of geometria situs was Euler’s solution to the bridges of Königsberg problem (1735). The first mathematical paper which mentions knots was written by A. T. Vandermonde in 1771: “Remarques sur l...