In this series of two articles, we consider the propagation of a time harmonic wave in a medium made of the junction a half-space (containing possibly scatterers) with a thin slot. The Neumann boundary condition is considered along the boundary on the propagation domain, which authorizes the propagation of the wave inside the slot, even if the width of the slot is very small. We perform a compl...

A method to compute the acoustic characteristics of a simplified three-dimensional vocal-tract model with asymmetric wall impedances is presented. The acoustic field is represented in terms of both plane waves and higher-order modes in tubes. This model is constructed using a connected structure of rectangular acoustic tubes, and can parametrically represent acoustic characteristics in higher f...

We study the construction of the source-initiated (one-to-all) wireless broadcast tree to minimize the total required power for a given source node, a group of intended destination nodes and a given propagation constant, i.e., the power attenuation constant λ . The Minimum-Energy Broadcasting (MEB) problem has received much attention recently due to the two main challenges of mobile communicati...

An image based ray-tracing approach is utilized to predict the capacity of a multiple input multiple output (MIMO) indoor wireless communication system. The results are compared to measured capacity and path loss values. The sensitivity of the spectrum efficiency estimation to physical propagation parameters such as electric permeability and conductivity of the transmission and reflection walls...

2 About the Scientific Committees Three independent non-food Scientific Committees provide the Commission with the scientific advice it needs when preparing policy and proposals relating to consumer safety, public health and the environment. The Committees also draw the Commission's attention to the new or emerging problems which may pose an actual or potential threat. SCCP Questions concerning...

In order to assist companies dealing with data preparation problems, different approaches are developed to handle the dirty data. However, these firms are not able to predict the final outcome from the customer data, before running all the business process. This gives rise to an extra cost for the company at the end, if the data is highly corrupted. Therefore, in this paper; we propose a framew...

We show that each mechanism of the Gilbert damping of wall motion corresponds to a current-induced drive torque on the domain wall, based on the same electron processes. For example, the damping theory of Heinrich, Fraitova, and Kambersky is directly related to the theory of nonadiabatic drive torques by Zhang and Li. Using momentum conservation, this relation is extended to the wall resistance...

ODE Model Equations Our deterministic SIR model extends a framework presented by Lipsitch et al. (2008) [1]. We have five classes of individuals: susceptible (S), infectious and untreated (Iu), infectious and treated (It), infectious with a resistant strain (Ir) or recovered (R). Let γu, γt and γr be the recovery rate for untreated, treated and resistant infections, respectively and let c be th...

Capacity dimensioning is performed before launching a cellular network, which includes coverage estimation and forecast of throughput. Cellular companies in developing countries like Pakistan are only providing 2G services, while 3G services are still in process of being launched. Although a lot of research has been done on 3G services in developed countries but there is very little knowledge r...

Abstract: The long-duration balloon flights of TRACER provide new measurements of the intensities and energy spectra of the arriving cosmic-ray nuclei with 5 ≤ Z ≤ 26 at high energies. In order to determine the particle composition and energy spectra at the cosmic-ray sources, changes occurring during the interstellar propagation of cosmic rays must be known. We use a simple propagation model w...