A modified diffused reflectance infrared Fourier transformed spectroscopy (DRIFTS) accessory was used to analyze the surface properties of alumino-silicate fibers. The modifications are simple and involve a different way of performing depth-profiling from traditional DRIFTS by removing approximately 2 mm of salt from a full cup prior to placing the sample in for depth profiling. This method pro...

The evaluation of the Yucca Mountain site has evolved from intensive surface-based investigations in the early 1980s to current focus on testing in underground drifts. Different periods of site characterization activities and prominent issues concerning the unsaturated zone (UZ) are summarized. Data collection activities have evolved from mapping of faults and fractures to estimation of percola...

In recent years process mining techniques have matured. Provided that the process is stable and enough example traces have been recorded in the event log, it is possible to discover a high-quality process model that can be used for performance analysis, compliance checking, and prediction. Unfortunately, most processes are not in steady-state and process discovery techniques have problems uncov...

Manuel Martin-Neira presented an overview of MIRAS instrument performance and status of RFI to conclude that much has been learnt and progressed during the first 20 months of SMOS in orbit. Being MIRAS the first radiometer able of acquire images in a wide field of view, everything related to calibration and data processing has been new and complex. Several issues, due to software errors (e.g. m...

We show that there exist solutions of drift-diffusion equations in two dimensions with divergence-free super-critical drifts, that become discontinuous in finite time. We consider classical as well as fractional diffusion. However, in the case of classical diffusion and time-independent drifts we prove that solutions satisfy a modulus of continuity depending only on the local L norm of the drif...

We study nearest neighbor random walks in fixed environments of Z composed of two point types : ( 1 2 , 1 2 ) and (p, 1− p) for p > 1 2 . We show that for every environment with density of p drifts bounded by λ we have lim supn→∞ Xn n ≤ (2p − 1)λ, where Xn is a random walk in the environment. In addition up to some integer effect the environment which gives the greatest speed is given by equall...

When using statistical models (such as a classifier) in a streaming environment, there is often a need to detect and adapt to concept drifts to mitigate any deterioration in the model’s predictive performance over time. Unfortunately, the ability of popular concept drift approaches in detecting these drifts in the relationship of the response and predictor variable is often dependent on the dis...

Surface nitrate (NO3(-)) species on the Ag/Al2O3 play an important role in the selective catalytic reduction (SCR) of NOx. In this study, the formation and configuration of surface nitrate NO3(-)(ads) species on Ag/Al2O3 and Al2O3 in the oxidation of NO have been studied using in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and density functional theory (DFT) calcul...

Our eyes move continuously. Even when we attempt to fix our gaze, we produce "fixational" eye movements including microsaccades, drift and tremor. The potential role of microsaccades versus drifts in the control of eye position has been debated for decades and remains in question today. Here we set out to determine the corrective functions of microsaccades and drifts on gaze-position errors due...