Prototype ultrasonic instrument for quantitative testing

Ultrasonic instrument has been developed for use in quantitative nondestructive evaluation of material defects such as cracks, voids, inclusions, and unbonds. Instrument is provided with standard pulse source and transducer for each frequency range selected and includes integral aids that allow calibration to prescribed standards

Effective dynamics of microorganisms that interact with their own trail

Like ants, some microorganisms are known to leave trails on surfaces to communicate. We explore how trail-mediated self-interaction could affect the behavior of individual microorganisms when diffusive spreading of the trail is negligible on the timescale of the microorganism using a simple phenomenological model for an actively moving particle and a finite-width trail. The effective dynamics of each microorganism takes on the form of a stochastic integral equation with the trail interaction appearing in the form of short-term memory. For moderate coupling strength below an emergent critical value, the dynamics exhibits effective diffusion in both orientation and position after a phase of superdiffusive reorientation. We report experimental verification of a seemingly counterintuitive perpendicular alignment mechanism that emerges from the model.Comment: new figure with experimental results; expanded appendi

It’s the Experience Not the Format: Successful Techniques to Transition Social Justice Coursework To a Distance Delivery Format

“Research on multicultural learning has focused on formal and local settings, such as schools, but young people are interacting with, and therefore learning from, informal settings and nonlocal contexts, including online platforms.” (Kim, 2016, p. 1). The instructor must be vigilant in selecting online teaching pedagogy when offering sensitive topics of courses because face-to-face intimacy is usually a component of more traditional courses in diversity (Matloob Haghanikar, 2019). The purpose of this current paper is to align critical parts of an experiential race relations curriculum (Clarke, 2019; Kranz & Lund, 2004) in a face-to-face setting with digital technologies available for use in distance education, specifically synchronous and asynchronous online delivery. We outline the original course components and show how technology can be aligned

Benchmarking high fidelity single-shot readout of semiconductor qubits

Determination of qubit initialisation and measurement fidelity is important for the overall performance of a quantum computer. However, the method by which it is calculated in semiconductor qubits varies between experiments. In this paper we present a full theoretical analysis of electronic single-shot readout and describe critical parameters to achieve high fidelity readout. In particular, we derive a model for energy selective state readout based on a charge detector response and examine how to optimise the fidelity by choosing correct experimental parameters. Although we focus on single electron spin readout, the theory presented can be applied to other electronic readout techniques in semiconductors that use a reservoir.Comment: 19 pages, 8 figure

Percolation with long-range correlated disorder

Long-range power-law correlated percolation is investigated using Monte Carlo simulations. We obtain several static and dynamic critical exponents as function of the Hurst exponent $H$ which characterizes the degree of spatial correlation among the occupation of sites. In particular, we study the fractal dimension of the largest cluster and the scaling behavior of the second moment of the cluster size distribution, as well as the complete and accessible perimeters of the largest cluster. Concerning the inner structure and transport properties of the largest cluster, we analyze its shortest path, backbone, red sites, and conductivity. Finally, bridge site growth is also considered. We propose expressions for the functional dependence of the critical exponents on $H$

IDSC USA Response to NIWRGs Appeal

The Brief of the Respondent, the United States of Americ

IDSC USA Opening Brief

The Brief of the Appellant, the United States of Americ

IDSC USA Response to NIWRGs Appeal

The Brief of the Respondent, the United States of Americ