As the solidification reaches hot spot area, no molten metal remains and shrinkage is formed. To anticipate shrinkage, a riser added to casting system. An optimal design would produce free components. One of factors that affect efficiency shape. This study aims find most efficient side shape by using simulation software. The tubes, tubes with half sphere on top, hemispheres, conical an oval cro...

MOTIVATION One of the major factors that complicate the task of microarray image analysis is that microarray images are distorted by various types of noise. In this study a robust framework is proposed, designed to take into account the effect of noise in microarray images in order to assist the demanding task of microarray image analysis. The proposed framework, incorporates in the microarray ...

This work introduces a novel active contour-based scheme for unsupervised segmentation of protein spots in two-dimensional gel electrophoresis (2D-GE) images. The proposed segmentation scheme is the first to exploit the attractive properties of the active contour formulation in order to cope with crucial issues in 2D-GE image analysis, including the presence of noise, streaks, multiplets and fa...

In the 1990s, official land policy debates in Southern Africa have become focused on two strategies: promoting freehold land markets to replace so-called customary tenure zones and expanding ‘commercial farming’ through market mechanisms. These two strategies are expected to resolve the escalating land problems. Yet, in the guise of promoting sustainable land use, environmental care, new agricu...

Origin-destination (OD) matrices are essential for various analyses in the field of traffic planning, and they are often estimated from link flow observations. We compare strategies for allocating link flow detectors to a traffic network with respect to the quality of the estimated OD-matrix. First, an overview of allocation strategies proposed in the literature is presented. Second, we give an...

This paper presents a numerical investigation and statistical analysis of laser bending of Titanium sheets. The aim of the present simulation is to identify the response through response surface methodology related to bending angle and characterize the effects of input parameters: laser power, spot diameter, scanning speed and plate thickness. The numerical simulations are carried out based on ...

Despite encryption, you can extract a fair amount of information from VoIP traffic based on variable bit rates. Previous research shows that the language and specific phrases can be identified in this manner. DiOrio’s research looks at detecting different accents based on the encoding bit rate. Preliminary results show that the average accuracy of differentiating accent pairs is 73%, with the b...

In this paper, the relationship between the thermodynamic and historical arrows of time is studied. In the context of a simple combinatorial model, their definitions are made more precise and in particular strong versions (which are not compatible with time symmetric microscopic laws) and weak versions (which can be compatible with time symmetric microscopic laws) are given. This is part of a l...

Designing dynamic pricing mechanisms that efficiently price resources in line with a provider’s profit maximization goal is a key challenge in cloud computing environments. Despite the large volume of research published on this topic, there is no publicly available software system implementing dynamic pricing for Infrastructure as a Service cloud spot markets. This paper presents the implementa...