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Ireneusz Wyczałek, Artur Plichta and Michał Wyczałek

Abstract

This paper concerns the possibility of using AGS15 capacitive inclinometers in the geodetic monitoring of slender structures. The basics of geometric monitoring have been introduced, and the features of inclinometers that can be used in these studies have been described. Main expectations towards them have been formulated. Three tests were conducted: (1) a few days' stability test of readings, (2) the test of inclinations controlled tachimetrically and (3) continuous survey of a physical object. It has been found that in order to obtain satisfactory results it is necessary to correct the readings due to the drift and the effect of temperature. The works conducted as part of described project work are not capable of identifying those indicators. To achieve them there were designed the system that support the acquisition and processing of the measurement and also the collection and transmission of results. In the conclusions authors stated that inclinometers AGS15 can be suitable for monitoring, but the works aimed at improving their performance should be undertaken.

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Oluseun Adetola Sanuade, Rasheed Babatunde Adesina, Joel Olayide Amosun, Akindeji Opeyemi Fajana and Olayiwola Grace Olaseeni

. Geological Survey Nigeria Bulletin, 40, pp. 725-731. [13] Krishanaiah, S. (2003): Centrifuge modelling of heat migration in geomaterials. Ph.D. Thesis, IIT Bombay: India. [14] Sheldrick, B.H., Wang, C. (1993): Particle size distribution. P. 499-511. In Carter (ed.) Soil sampling and methods analysis. Canadian Society of Soil Science: Lewis Publishers. Ann Arbor. [15] ASTM D7928-17 (2017): Standard test method for particle size distribution (gradation) of fine grained soils using the sedimentation (hydrometer) analysis. ASTM

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Matija Zorc, Aleš Nagode, Milan Bizjak and Borut Zorc

, W.Y.D. (2003): Review of the High-Temperature Oxidation of Iron and Carbon Steels in Air or Oxygen. Oxidation of Metals , 59(5/6), pp. 433–468. [15] De Cooman, B.C., Speer, J.G. (2011): Fundamentals of Steel Product Physical Metallurgy , Englewood: AIST, 642 p. [16] Grzesik, Z. (2003): Thermodynamics of Gaseous Corrosion. In ASM Handbook, Vol. 13A - Corrosion: Fundamentals, Testing, and Protection, Cramer, S.D., Covino Jr., B.S. (Eds.), Ohio: ASM International, Materials Park, pp. 90–96. [17] Billings, G.A. (1966): Oxidation and Decarburization

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A.A. Alabi, A.O. Adewale, J.O. Coker and O.A. Ogunkoya

(1), pp. 1-20. [23] Oyedele, K.F., Adeoti, L., Oladele, S. Kamil, A. (2014): Investigation of a Proposed Four Story Building Sites Using Geophysical and Laboratory Engineering Testing Methods in Lagos, Nigeria. International Journal of Scientific Research in Knowledge, 2(2), pp. 83-91. [24] Grant, N.K. (1978): Structural Distinction between a Metasedimentary Cover and an underlying Basement in the 600 m. y. old Pan African domain of Northwestern Nigeria, West Africa. Geological Society of American Bulletin, 89, pp. 50

Open access

Zbigniew Szczerbowski

, earthquake hazards in the area of San Andreas Fault System are assessed from fault slip rate estimates. However, the estimates of slip measured by the long-term offset of physical geologic features do not always match modern estimates from precise positioning GPS measurements, model simulating interseismic strain accumulation, historical earthquake ruptures, and postseismic stress relaxation over several hundred years and slip rates evaluated from geological data and GPS rate measurements can improve the understanding of earthquake mechanisms and reduce risk (Mc