Measurement of discharge in open channels is one of the main concerns in hydraulic engineering. The structures used for this aim should be accurate, economical and easy to use. Weirs are among the oldest and most convenient hydraulic structures that have been used in both laboratory and field for flow measurement in open channels. Due to limitations of simple sharp crested weirs, recently compo...

The objective of this paper is to develop a computational model of human nasal cavity from computed tomography (CT) scans using MIMICS software. Computational fluid dynamic techniques were employed to understand nasal airflow. Gambit and Fluent software was used to perform CFD simulation. Velocity profiles, iteration plots, pressure distribution, streamline and pathline patterns for steady, lam...

The study explores the current state of test automation in software testing organizations by focusing on the views and observations of managers, testers and developers in each organization. The case study was conducted in selected organizational units that develop and test technical software for industrial automation or telecommunication domains. The data was collected with 41 theme-based inter...

This paper describes a polynomially-solvable subproblem of temporal planning. Polynomiality follows from two assumptions. Firstly, by supposing that each sub-goal fluent can be established by at most one action, we can quickly determine which actions are necessary in any plan. Secondly, the monotonicity of sub-goal fluents allows us to express planning as an instance of STP. Our class includes ...

In this paper we discuss conjunctive planning problems in the context of the fluent calculus and Petri nets. We show that both formalisms are equivalent in solving these problems. Thereafter, we extend actions to contain preconditions as well as obstacles. This requires to extend the fluent calculus as well as Petri nets. Again, we show that both extended formalisms are equivalent.

—Recent work in behavioral animation has taken impressive steps towards a virtual human. As for intelligent virtual agents, abbreviated " IVAs " , the behaviors displayed in virtual environments should be " reasoned ". It remains challenging, however, to endow virtual agents with cognitive ability to perform specific tasks. This paper addresses cognitive models and behavioral models for IVAs. F...

Nasal cavity is an important component of respiration system for the various physiological functions (Elad et al., 2008; Lee, 2010). By using a commercial CFD software Ansys-Fluent and a surface mapping software Unfold3D, wall shear stress (WSS) distribution and particle deposition patterns on the nasal cavity wall were simulated and transformed into a normalized UV domain (where U and V denote...

This research aims to simulate a gravity flow fractionation—the process to fractionate erythrocytes through gravitational field using ANSYS simulation software. A particular microfluidic channel was designed as a separation device. The gravitational equilibrium conditions of the erythrocytes and gravitational field as the parameters were chosen, then deriving the erythrocytes’ path through nume...

namics software (CFD) was used to calculate natomical differences on flow resistance and inspiratory flow rates. Two types of models e segmented images. (1) Area-length curves of sopharynx through the epiglottis were used to tric flow models. These models were used to rea variation of flow resistance and pressure. e segmented 3D reconstruction were created, perpendicular to the airway centerlin...

The paper aims to simulate the chemical transport of ammonia vapor with density ρ = 0.6894 kg/m and coefficient of viscosity μ = 1.015e-05 kg/m-s inside the healthy Indian nose by computational fluid dynamics (CFD) technique and to analyze the olfactory sensitivity. The computed tomographic images of a healthy adult with normal nasal structure and function was used to built a physically realist...