The accumulated damage of the surrounding rocks induced by existing coal mining activities (such as excavation and extraction) is initial mechanical background rock for further operations. An energy-based Cumulative Initial Damage (CID) variable was proposed to account such damage. With MTS815 electro-hydraulic servo-controlled system, samples with different CID value were prepared cyclic pre-l...

Purpose – The purpose of this paper is to propose a new temporal disaggregation method for time series based on the accumulated and inverse accumulated generating operations in grey modeling and the interpolation method. Design/methodology/approach – This disaggregation method includes three main steps, including accumulation, interpolation, and differentiation (AID). First, a low frequency flo...

Background: Accelerated ageing causes seeds to deteriorate that affect the seed quality of groundnut seeds. Seed deterioration will cause metabolic and chemical changes viz., lipid peroxidation autoxidation, leading loss membrane integrity enzyme activities. These are associated with reduced germination vigour. Methods: The cv. VRI 8 was subjected for accelerated at 40oC 100% RH upto 11 days ev...

The impacts of Dust and Sand Storms (DSS) on people, crops, livestock, infrastructure and health are well documented. Data have accumulated on the deleterious effects of dust aerosols when they settle on plants. Sand blasting of low growing plants is a common cause of failure in reforestation efforts. Burial of plants by moving sands are also a cause of much damage. The physics of moving sand a...

In this paper, a Weibull probabilistic methodology is proposed with an approach to model vibration fatigue damage accumulation using two parameters: distribution and nonlinear model. The cumulated based on the application of stress profile used determine both β η parameters, corresponding component reliability R(t). analyzed accumulate as function for life exponent derived assistance accelerati...

This paper examines the importance of load phase angle variations with respect to fatigue damage. The operating loads on a generic three bladed up-wind 1.5-MW wind turbine blade were analyzed over a range of operating conditions, and an aggregate probability distribution for the actual phase angles between the peak in-plane (lead-lag) and peak out-ofplane (flap) loads was determined. Using a fi...

Our study investigates biomarker responses and survival of Macoma nasuta exposed to sediments collected from six locations in northern San Francisco Bay. Biomarkers analyzed were stress proteins (hsp70) in gill, mantle and digestive gland, lysosomal membrane damage and histopathologic lesions. Sediments and clam tissues were analyzed for a comprehensive suite of heavy metals and trace organic p...

Abstract If life ever appeared on Mars and if it did refuge into sub-superficial environments when surface conditions turned too hostile, then should have been periodically revived from the frozen, dormant state in order to repair accumulated damage reset survival clock zero for next phase. Thus, unravelling how long Earth microorganisms can cope with high-LET radiation mimicking long-term irra...