Dielectric properties for anterior, middle, tail, and belly portions of Alaska pink salmon (Oncornynchus gorbuscha) fillets were measured at frequencies between 27 and 1800 MHz from 20 to 120 C to provide insights for improving the modeling of microwave (MW) and radio frequency (RF) commercial sterilization processes of salmon products. Compositional differences contributed to the observed slig...

We describe and analyze adaptive antenna array technology to improve naval communications systems to beyond line-of-sight at microwave frequencies by using the ducting layer as a leaky waveguide and the adaptive array to resolve and coherently combine multipath in this layer.

The synchrotron light of the SLC damping ring was used to measure the bunch length with a streak camera at different times in the damping cycle. There are bunch length oscillations after injection, different equilibrium length during the cycle due to rf manipulations to avoid microwave instability oscillations, and just before extraction there is a longitudinal phase space rotation (bunch munch...

Venkatesh, M.S. and Raghavan, G.S.V. 2005. An overview of dielectric properties measuring techniques. Canadian Biosystems Engineering/Le génie des biosystèmes au Canada 47: 7.15 7.30. With a need for the development of improved sensing devices for the control and automation of several agricultural, environmental, and food processes, there is an absolute need for better understanding of the diel...

D. Nowak, K. Granat, B. Opyd, Wroclaw University of Technology, Department of Foundry Engineering and Automation, Wrocław, Poland In the paper, presented are results of a research on influence of compaction degree on dielectric properties of components of moulding sands. During recent years, intensive research works on possibilities of using microwave heating in foundry technique are carried-ou...

We implement the Du Fort]Frankel modified explicit ( ) finite-difference beam propagation method MEFD to model threedimensional optical de ̈ices using parallel computers. Accuracy comparisons with other parallel FD]BPMs are made, and we obser̈ e that the MEFD is ̈ery accurate and efficient. The parallel implementation of MEFD shows a large run-time computer sa ̈ings compared to other parallel FD]B...

In this work, we demonstrate an one-dimensional cloak consisting of parallel-plated waveguide with two slabs of gradient index metamaterials attached to its metallic walls. In it objects are hidden without limitation of polarizations, and good performance is observed for a broadband of frequencies. The experiments at microwave frequencies are carried out, supporting the theoretical results very...

An adapti e finite-element method for the analysis ofwa eguiding structures based on the error at each inner edge of the meshis presented. The error indicator is based on the fulfillment of thedi ergence Maxwell equations. The adaptation of the unknowns to thefield distribution allows better accuracy in the propagation constant,maintaining a low computational cost. 2000 John...

N.P. Lourie, D.T. Chuss, R.M. Henry, E.J. Wollack Abstract The design, fabrication, and performance of truncated circular and square waveguide cross-sections are presented. An emphasis is placed upon numerical and experimental validation of simple analytical formulae that describe the propagation properties of these structures. A test component, a 90-degree phase shifter, was fabricated and tes...

We present the design of a digital two-user code-division multiple access hardware (HW) demonstrator operating in the microwave band. A multistage RAKE receiver is used to exploit the time diversity due to multipath propagation and, simultaneously, to overcome the nearfar-effect. All algorithms for the baseband signal processing are implemented as software modules on general purpose digital sig...