The robustness of quantum gates in the presence imperfections classical control fields that drive is an important issue computation. authors extend technique composite pulses and construct two pulse sequences provide against time-dependent drift amplitude pulses.

We combine operando diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) with on-line mass spectrometry (MS) to study the correlation between oxidation state of titania-supported IrO2 catalysts (IrO2@TiO2) and their catalytic activity in prototypical CO reaction. Here, stretching vibration adsorbed COad serves as probe. DRIFTS provides information on both surface gas phase speci...

Rapid and nondestructive methods such as diffuse reflectance infrared spectroscopy provide potentially useful alternatives to time-consuming chemical methods of soil metal analysis. To assess the utility of near-infrared reflectance spectroscopy (NIRS) and diffuse mid-infrared reflectance spectroscopy (DRIFTS) for soil metal determination, 70 soil samples from the metal mining region of Tarnows...

Let μ = (μ1, . . . , μd) be such that each μi is a signed measure on Rd belonging to the Kato class Kd,1. A Brownian motion in Rd with drift μ is a diffusion process in Rd whose generator can be informally written as 1 2 + μ · ∇. When each μi is given by Ui (x)dx for some function Ui , a Brownian motion with drift μ is a diffusion in Rd with generator 1 2 +U ·∇. In Kim and Song (Ill J Math 50(3...

Surprising events may be relevant or irrelevant for behavior, requiring either flexible adjustment or stabilization of our model of the world and according response strategies. Cognitive flexibility and stability in response to environmental demands have been described as separable cognitive states, associated with activity of striatal and lateral prefrontal regions, respectively. It so far rem...

Time synchronization is an extremely important service in wireless sensor networks. The notion of time on a node is maintained using crystal oscillators. These oscillators are designed to oscillate at a particular frequency called the nominal frequency, but typically there is always some deviation. This deviation is caused due to a wide variety of reasons which include manufacturing variations,...

Three advanced technologies to measure soil carbon (C) density (g C m(-2)) are deployed in the field and the results compared against those obtained by the dry combustion (DC) method. The advanced methods are: a) Laser Induced Breakdown Spectroscopy (LIBS), b) Diffuse Reflectance Fourier Transform Infrared Spectroscopy (DRIFTS), and c) Inelastic Neutron Scattering (INS). The measurements and so...

The CO content of hydrogen feed to proton exchange membrane fuel cells (PEMFC) must be kept under 1-100 ppm for their proper operation. This can be achieved by using catalysts able to selectively oxidize CO in the presence of excess hydrogen (PROX). The present study reports on the mechanism of PROX reaction on Pt/CeO2 catalyst, by using catalytic tests, in-situ DRIFTS, high-pressure XPS, HRTEM...

This work examines the problem of sequential change detection in the constant drift of a Brownian motion in the case of multiple alternatives. As a performance measure an extended Lorden’s criterion is proposed. When the possible drifts, assumed after the change, have the same sign, the CUSUM rule designed to detect the smallest in absolute value drift, is proven to be the optimum. If the drift...