The modifications and extensions of standard continuum models used for a description of material transport due to electromigration with models for the copper microstucture are studied. Copper grain boundaries and interfaces are modeled as a network of high diffusivity paths. Additionally, grain boundaries act as sites of vacancy recombination. The connection between mechanical stress and materi...

In this chapter, we consider a range of issues associated with analysis, modeling, and recognition of speech under stress. We start by defining stress, what could be perceived as stress, and how it affects the speech production system. In the discussion that follows, we explore how individuals differ in their perception of stress, and hence understand the cues associated with perceiving stress....

In this paper, conceptual models are presented to identify the effects of solid deformation on the changes in rock permeabilities for (a) fractured media, (b) intact media, and (c) fractured porous media subjected to external loads, all in steady state conditions. Finite element schemes are then developed with embedded correlations between induced strain and modified permeability to simulate th...

This paper studies how a client's bankruptcy risk, together with its accounting quality and corporate governance, affect audit pricing. We use the unusual economic conditions of the 1998 Asian financial crisis as a stress test of the effect of these factors on audit pricing in Hong Kong. We find that audit fees are highly sensitive to a client firm's financial condition, corporate governance, a...

In many real life scenarios, system reliability depends on dynamic stress-strength interference where strength degrades and stress accumulates concurrently over time. In some other cases, shocks appear at random time points, causing damage which is only effective at the instant of shock arrival. In this paper, we consider the identifiability problem of a system under deterministic strength degr...

DEMIRCIOGLU, HARUN. Modeling Layout Dependent Stress Effects for CMOS. (Under the direction of Dr. W. Rhett Davis.) Process induced mechanical stress has enabled continued CMOS scaling since the 90nm node to improve carrier transport and maintain high drive current. This stress depends strongly on the layout shape as well as the surroundings of each transistor in a circuit. The resulting stress...

Background and purpose: The safety climate refers to employees’ perception of safety which can be affected by job-related stress in the workplace. This study aimed to assess the safety climate and investigate the relationship between job stress factors and safety climate dimensions in a dairy industry. Materials and Methods: This was a cross-sectional study. The data was collected using two se...

withdrawal of oil and gas from reservoirs causes a decrease in pore pressure and an increase in effective stress which results to a reservoir compaction. reservoir compaction will result in surface subsidence through the elastic response of the subsurface. usually in order to determine the subsidence above a hydrocarbon field, the reservoir compaction must be first calculated and then the effec...