scholarly journals Introduction of Computer Aided Test Analysis Program for Civil Engineering

2020 ◽  
Vol 2 (1) ◽  
pp. 6
Author(s):  
Zheng Wu ◽  
Yang Lee ◽  
Chong Lee
Keyword(s):  
Civil Engineering ◽  
International System ◽  
International Standards ◽  
Test Analysis ◽  
Technical Requirements ◽  
Computer Aided ◽  
Selection Parameter ◽  
Unit Conversion ◽  
Working Efficiency ◽  
Computer Aided Test

The Computer Aided Test Analysis for Civil Engineering (CATACE) is made based on International standards, regulations and specifications. It includes test analysis for aggregates, bitumen, soil, asphalt concrete and its mixtures. It includes the technical requirements for nuclear gauge, selection parameter for surface dressing, blending for prime coat and tack coat. It provides the unit conversion between American to international system. It provided over 40 kinds of test analysis, and it will be increase working efficiency for the Material Testing Engineer who is working oversea project and follows International Standards. The paper introduces the functions and application of the program.

CATA: A Computer-Aided Test Analysis System

1984 ◽  
Vol 1 (2) ◽  
pp. 68-79 ◽  
Author(s):  
Chantal Robach ◽  
Philippe Malecha ◽  
Gilles Michel
Keyword(s):  
Test Analysis ◽  
Computer Aided ◽  
Analysis System ◽  
Computer Aided Test

scholarly journals A Blackbody Design for SI-Traceable Radiometry for Earth Observation

2008 ◽  
Vol 25 (11) ◽  
pp. 2046-2054 ◽  
Author(s):  
P. Jonathan Gero ◽  
John A. Dykema ◽  
James G. Anderson
Keyword(s):  
Phase Transitions ◽  
Temperature Scale ◽  
International System ◽  
Thermal Infrared ◽  
Earth Observation ◽  
International Standards ◽  
Future Climate Change ◽  
Single Temperature ◽  
System Of Units ◽  
Infrared Measurements

Abstract Spaceborne measurements pinned to international standards are needed to monitor the earth’s climate, quantify human influence thereon, and test forecasts of future climate change. The International System of Units (SI, from the French for Système International d’Unités) provides ideal measurement standards for radiometry as they can be realized anywhere, at any time in the future. The challenge is to credibly prove on-orbit accuracy at a claimed level against these international standards. The most accurate measurements of thermal infrared spectra are achieved with blackbody-based calibration. Thus, SI-traceability is obtained through the kelvin scale, making thermometry the foundation for on-orbit SI-traceable spectral infrared measurements. Thermodynamic phase transitions are well established as reproducible temperature standards and form the basis of the international practical temperature scale (International Temperature Scale of 1990, ITS-90). Appropriate phase transitions are known in the temperature range relevant to thermal infrared earth observation (190–330 K) that can be packaged such that they are chemically stable over the lifetime of a space mission, providing robust and traceable temperature calibrations. A prototype blackbody is presented that is compact, highly emissive, thermally stable and homogeneous, and incorporates a small gallium melting point cell. Precision thermal control of the blackbody allows the phase transition to be identified to within 5 mK. Based on these results, the viability of end-to-end thermometric calibration of both single-temperature and variable-temperature blackbodies on orbit by employing multiple-phase-change cells was demonstrated.

Comparison of the Canadian standard and other standards for wind loading on self-supporting telecommunication towers

2020 ◽  
Author(s):  
Patricia Martín ◽  
Ashraf A. El Damatty
Keyword(s):  
Civil Engineering ◽  
International Standards ◽  
Wind Loads ◽  
Wind Loading ◽  
Effect Factor ◽  
Engineering Community ◽  
Axial Forces ◽  
Australian Standard ◽  
Telecommunication Towers ◽  
Wind Profiles

Designing telecommunication towers to withstand wind loads requires specific considerations, which has led the international civil engineering community to develop specific standards for these structures. The recent internationalization of the construction business has made it imperative for engineers to acquire knowledge and interpretation of codes from different countries. In light of the 2018 update of Canadian Standard CSA-S37-18 (CSA), evaluating its differences against other international standards for telecommunication towers has become important. This paper presents a comparison of the wind loading specifications for self-supporting telecommunication towers according to CSA; Australian Standard; Eurocode EN-1993-1; and US Standard TIA-222-G. The different standards have also been evaluated with respect to the values of the axial forces and the elements ratio for two self-supporting telecommunication towers. The parameters related to the wind profiles and the gust effect factor presented the highest difference between the standards.

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