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Full-Text Articles in Science and Technology Studies
Gas Reservoir And Emission Modelling To Evaluate Gas Drainage To Control Tailgate Gas Concentrations And Fugitive Emissions, Dennis J. Black
Gas Reservoir And Emission Modelling To Evaluate Gas Drainage To Control Tailgate Gas Concentrations And Fugitive Emissions, Dennis J. Black
Faculty of Engineering and Information Sciences - Papers: Part B
The process of longwall coal extraction coal causes fractures in the overlying and underlying strata and these fractures become pathways for gas released from adjacent coal seams to flow into the mine workings and contaminate the ventilation air. If the rate of gas emission exceeds the diluting capacity of the ventilation air, the gas concentration will increase and exceed the statutory limit resulting in production delays.All potential gas sources within the planned mining area, including coal seams located above and below the working seam, should be identified and sufficient gas data collected and used to determine the specific gas emission …
Thinking About The Processes Used When Organisations Select And Evaluate Software: Operationalising Ict Evaluation Theory, Darren Skidmore, Linda Dawson
Thinking About The Processes Used When Organisations Select And Evaluate Software: Operationalising Ict Evaluation Theory, Darren Skidmore, Linda Dawson
Associate Professor Linda Dawson
No abstract provided.
A Numerical Approach To Evaluate The Fatigue Life Of Monolimb, Nian-Zhong Chen, Winson Lee, Ming Zhang
A Numerical Approach To Evaluate The Fatigue Life Of Monolimb, Nian-Zhong Chen, Winson Lee, Ming Zhang
Faculty of Engineering and Information Sciences - Papers: Part A
Monolimb refers to a transtibial prosthesis with the prosthetic socket and the shank being molded into one piece of thermoplastic material. Shank flexibility of a monolimb can improve gait and comfort. However, fatigue failure of monolimbs under cyclic walking load is an important concern. This study is to evaluate the fatigue life of a monolimb designed for a transtibial amputee, based on finite element analysis, the statistical Miner's rule and reliability analysis. Stress uncertainty due to modeling error and the scatter in fatigue test data were considered. Results indicated that the accuracy of fatigue life evaluation of monolimb depends significantly …