Now showing items 11-20 of 175
Photonic-crystal-based resonant-cavity-enhanced detectors
A layer-by-layer three-dimensional photonic crystal, with a full photonic bandgap (PBG) in all directions is proposed. The electrical fields in the cavities of this crystal are usually enhanced, and by placing active devices ...
Joint source-channel coding and guessing
We consider the joint source-channel guessing problem, define measures of optimum performance, and give single-letter characterizations. As an application, sequential decoding is considered.
On correct program schemas
(Springer, Berlin, Heidelberg, 1998)
We present our work on the representation and correctness of program schemas, in the context of logic program synthesis. Whereas most researchers represent schemas purely syntactically as higher-order expressions, we shall ...
Involving fuzzy concepts in active mobile databases
Current needs of industry required the development of advanced database models like mobile databases, active databases, and fuzzy databases. Fuzzy concepts are adapted to the field of databases in order to deal with ...
Polyphase adaptive filter banks for subband decomposition
Subband decomposition is widely used in signal processing applications including image and speech compression. In most practical cases, the goal is to obtain subband signals that are suitable for data compression. In this ...
High-speed resonant-cavity-enhanced Schottky photodiodes
The top-illuminated Schottky photodiodes were fabricated by a microwave-compatible monolithic microfabrication process. Fabrication started with formation of ohmic contacts to n+ layers. Mesa isolation was followed by a ...
Fast direct solution algorithm for electromagnetic scattering from 3D planar and quasi-planar geometries
A non-iterative method and its application to planar geometries in homogeneous media is presented. The method is extendable to the cases of quasi-planar structures and/or layered-media problems. The fast direct algorithm ...
Accurate plane-wave excitation in the FDTD method
Different techniques are developed to implement plane-wave excitation on the finite-difference time-domain (FDTD) method, such as the initial-condition, the hard-source, and the connecting-condition techniques, for the ...
Correct-schema-guided synthesis of steadfast programs
It can be argued that for (semi-)automated software development, program schemas are indispensable, since they capture not only structured program design principles, but also domain knowledge, both of which are of crucial ...
Assessment of information redundancy in ECG signals
In this paper, the morphological information redundancy in standard 12 lead ECG channels is studied. Study is based on decomposing the ECG channels into orthogonal channels by an SVD based algorithm and then reconstructing ...