An iterative method is introduced for solving noisy, ill-conditioned inverse problems. Analysis of the semi-convergence behavior identifies three error components iteration error, noise error, and initial guess error. A derived expression explains how the three errors are related to each other relative to the number of iterations. The Standard Tikhonov regularization method is just the first it...

This paper is concerned with floating-point filters for a two dimensional orientation problem which is a basic problem in the field of computational geometry. If this problem is only approximately solved by floating-point arithmetic, then an incorrect result may be obtained due to accumulation of rounding errors. A floatingpoint filter can quickly guarantee the correctness of the computed resul...

The research work covers the query optimization concept in parallel distributed environment. The queries considered are select-project-join (SPJ) queries with large databases. The main query operation considered for research is JOIN operation of the query. For fast execution of a complex query, JOIN operation time needs to be minimized. Different JOIN operation algorithms such as Network Byte O...

Abstract—A novel low-pass filter (LPF) is designed and fabricated based on stepped-impedance resonator (SIR). Semi-circles are used to reduce the size of the filter. The open-circuited stubs are used in the filter, and its simplified equivalent circuit is also proposed. The measured 3 dB cutoff frequency is 5.2GHz with no more than 0.3 dB ripple level in the pass-band. From 5.5 to 14 GHz, the i...

Dependability is getting a more important non-functional property of a system. Measuring and predicting the dependability is especially important for autonomous or semi-autonomous and safety-critical systems. Since, at least for (semi-) autonomous systems, those systems are usually described by their behavior, a definition for dependability based on the behavior of the system is evident. In thi...

A propeller-wash bead filter (PWBF) and a fluidized sand filter (FSF) on a 28 m recirculating system stocked with tilapia maintained favorablewater quality at five different feed rates, ranging from 0.9 to 4.5 kg feed per day. TAN removal rates ranged up to about 200 g TAN/m of media per day for each of the units. Peak rates of 244 g TAN/m of media per day were observed when the recirculating f...

In this short note we provide an example of a semi-linear group G which does not admit a semi-linear affine embedding; in other words, there is no semi-linear isomorphism between topological groups f : G → G′ ⊆ Mm, such that the group topology on G′ coincides with the subspace topology induced by Mm. Let M be an o-minimal structure. By “definable” we mean “definable in M” possibly with paramete...