نتایج جستجو برای: cause
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The maintenance dataset provided by SunWater contains information about failed assets also known as components and their corresponding failure modes. Currently, extraction of this information from the dataset been conducted in a manual manner, which is very tedious, time consuming and cumbersome work. It is necessary to discover an automatic method to decide/extract the failure mode. This paper...
In general, high temperature testing is used to determine LED and laser diode lifetimes, even though laser diode failure mechanisms are more sensitive to increases in current density. As a measured parameter of degradation, the current density is of great significance when searching for failure modes in a laser diode. Raising the current density however, is not really indicative of lifetime sin...
Schools often offer healthy fruits and vegetables (FV) and healthy entrées. However, children may resist these efforts due to a lack of familiarity with the offerings. While numerous exposures with a food increase its liking, it may be that an exposure to a variety of FV at home leads to greater willingness to select other foods - even those that are unrelated to those eaten at home. As an init...
common use is the distinction into two (abstract) fault models: A new fault modelling scheme for integrated analogue general the "Single Hard Fault Model (SHFM)" and the CMOS circuits referred to as Local Layout Realistic Fault Mapping is introduced. It is aimed at realistic fault 1 assumptions prior to the final layout by investigating typical “local” layout structures of analogue designs. Spe...
At a critical temperature, active materials within Li-ion batteries break down, generating heat and gas. Thermal runaway occurs when this process accelerates after the temperature of the cell begins to rise, leading to hazardous failure mechanisms such as the cell bursting. In article number 1700369, Paul R. Shearing and co-workers use high-speed X-ray imaging to capture and characterize such h...
minutes to use the toilet! The arbitrator was, I think, as dumbfounded as I was and did not credit that preposterous, obviously fabricated story. My point is that no arbitrator should credit ridiculous testimony, testimony that would never otherwise be credited, just because it arises within the context of a highly emotional drug case. Finally, I would urge that you keep reminding yourselves of...
The ultimate tensile behaviour of fibre-reinforced cementitious composites is closely related to its failure mechanisms which in turn are dependent on reinforcement parameters such as fibre characteristics and the fibre/matrix interface properties. Based on the direct tensile tests of mortar specimens reinforced with various synthetic fibres, this paper attempts to explain such relationships an...
Rock slope instabilities are discussed in the context of decision making for risk assessment and management. Hence, the state of the slope and possible failure mechanism need to be defined first. This is done with geometrical and mechanical models for which recent developments are presented. This leads with appropriate consideration of uncertainties to risk determination and to the description ...
This paper deals with the condition-based maintenance of single-unit systems which are subject to the competing and dependent failures due deterioration and traumatic shock events. The main aim is to provide a model to assess the value of condition monitoring information for the maintenance decision-making. A condition-based periodic inspection/replacement policy is developed and compared with ...
This paper reviews the state of the art knowledge related to critical failure mechanisms in electrostatic microand nano-electromechanical systems (MEMS and NEMS) which are the dielectric charging and stiction. It describes also the recent employed nanoscale characterization techniques for these phenomena based on Kelvin probe force microscopy (KPFM) and force–distance curve measurements. The in...
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