Unbalance and misalignment are the commonly occurring faults in rotating mechanical systems. These faults are caused mainly due to improper installation or premature failure of the machine components. Detection and diagnosis of faults in rotating machinery is crucial for its optimal performance. In this study artificial neural networks (ANN) and support vector machine (SVM) techniques have been...

An online algorithm is presented that produces an optimal radix-2 representation of an input integer n using digits from the set D`,u = {a ∈ Z : ` ≤ a ≤ u}, where ` ≤ 0 and u ≥ 1. The algorithm works by scanning the digits of the binary representation of n from left-to-right (i.e., from most-significant to least-significant). The output representation is optimal in the sense that, of all radix-...

Voltage sag is an important power quality problem, which may affect domestic, industrial and commercial customers. Voltage sags may either decrease or increase in the magnitude of system voltage due to faults or change in loads. Momentary and sustained over voltage and under voltage ma y cause the equipment to trip out, which is highly undesirable in certain application. In order to maintain th...

This study concerns a threshold-based matching algorithm for Clos (t-MAC) network switches. The studied Clos network uses a central photonic switch fabric for transporting high-speed optical signals and electronic controllers at the input and output ports. The proposed matching algorithm is used to solve the scheduling problems associated with the Clos network. The matching algorithm incorporat...

To create a combinational ATPG model for an acyclic sequential circuit, all unbalanced fanouts, i.e., fanouts reconverging with different sequential depths, are moved toward primary inputs using a retiming-like transformation. All flipflops are then shorted and unbalanced primary input fanouts are split as additional primary inputs. A combinational test vector for a fault in this model is conve...

Abstract In the economics literature, measuring performance of a dairy farm with total productivity index is common practice. Previous research, on other hand, has been chastised for failing to account agricultural emissions in their models when calculating resource use productivity. This study estimated green factor (GTFP) accounting farms' CH4 emission model. The based unbalanced panel data f...

In this paper, we evaluate strategies of domain decomposition in Grid environment to solve mesh-based applications. We compare the balanced distribution strategy with unbalanced distribution strategies. While the former is a common strategy in homogenous computing environment (e.g. parallel computers), it presents some problems due to communication latency in Grid environments. Unbalanced decom...

We propose an accurate and efficient model of having an unbalanced differential line structure, where mode-conversion and frequency dependent loss effects are considered in above the GHz frequency range. To extract model parameters of the proposed unbalanced differential line model, we measured s-parameters of test patterns using a 2-port VNA and defined a new type of mixed-mode s-parameter. Th...

Carriers of inversions involving euchromatic regions are at risk of having unbalanced offspring due to meiotic crossover. In carriers, recombination can occur during gametogenesis and cause genetically unbalanced sperm and subsequently unbalanced embryos. Here we present segregation analysis results of an infertile male with 46,XY,inv(2) (q21.2q37.3) using fluorescent in situ hybridization (FIS...

R readers of this column know that I don’t hesitate to criticize equipment manufacturers for their technically parochial and/or deficient engineering which ultimately drives system installers, maintenance technicians and users crazy. Although I'm an instructor at a number of seminars and workshops each year, the by Bill Whitlock recent Syn-Aud-Con JENSEN TRANSFORMERS Grounding and Shielding Wor...