نتایج جستجو برای: cause

تعداد نتایج: 396102  

2007
Lin Chen Richi Nayak

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...

2001
Melanie Ott

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...

Journal: :Maternal & child nutrition 2015
Elizabeth V Korinek John B Bartholomew Esbelle M Jowers Lara A Latimer

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...

1996
Michael J. Ohletz

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...

2018
Donal P. Finegan Eric Darcy Matthew Keyser Bernhard Tjaden Thomas M. M. Heenan Rhodri Jervis Josh J. Bailey Nghia T. Vo Oxana V. Magdysyuk Michael Drakopoulos Marco Di Michiel Alexander Rack Gareth Hinds Dan J. L. Brett Paul R. Shearing

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...

2005
LEROY D. CLARK

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...

2004
V. C. LI

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...

2010
Jian Zhao

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 ...

Journal: :Rel. Eng. & Sys. Safety 2011
Khac Tuan Huynh Anne Barros Christophe Bérenguer Inmaculada Torres Castro

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 ...

Journal: :Microelectronics Reliability 2011
Usama Zaghloul George J. Papaioannou Bharat Bhushan Fabio Coccetti Patrick Pons Robert Plana

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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