This paper describes an underwater object discrimination system applied to recognize cylinders of various compositions from diierent angles. The system is based on a new combination of simulated dolphin clicks, simulated auditory lters and artiicial neural networks. The model demonstrates its potential on real data collected from four diierent cylinders in an environment where the angles were c...

In this thesis I study reconstruction of orthogonal polyhedral surfaces and orthogonal polyhedra from partial information about their boundaries. There are three main questions for which I provide novel results. The first question is “Given the dual graph, facial angles and edge lengths of an orthogonal polyhedral surface or polyhedron, is it possible to reconstruct the dihedral angles?” The se...

The title of our research paper is “Analysis of Incompressible fluid flow over wedge with different angles”. The basic objective of this research work is to optimize the fluid flow over different wedges and it angles. The optimization is done by varying wedge angle, its parameters considering fluid flow parameters also. The analysis of wedge is carried out in both 3D and 2D from which various r...

Using photochemical models for the validation of NO2 satellite measurements at different solar zenith angles A. Bracher, M. Sinnhuber, A. Rozanov, and J. P. Burrows Institute of Environmental Physics and Remote Sensing (IUP/IFE), University of Bremen, 28334 Bremen, Germany Received: 2 April 2004 – Accepted: 29 August 2004 – Published: 21 September 2004 Correspondence to: A. Bracher (bracher@uni...

Background: The supratrochlear foramen (STF) is an important and relatively common anatomic variation in the lower end of the humerus in humans. In recent years it has become clear that STF should be emphasized because anatomical knowledge of STF is useful for anatomists, anthropologists, orthopedic surgeons, and radiologists. The anatomical structure of the humerus may play an important role i...

Locomotion imposes some of the highest loads upon the skeleton, and diverse bone designs have evolved to withstand these demands. Excessive loads can fatally injure organisms; however, bones have a margin of extra protection, called a 'safety factor' (SF), to accommodate loads that are higher than normal. The extent to which SFs might vary amongst an animal's limb bones is unclear. If the limbs...

Fractures of the humeral head account for 5% of all fractures and incidence increases with age. Depending on fracture form and patients age a wide variety of therapeutical options exist. Stable fractures can be treated conservatively, while the majority of unstable and displaced fractures require surgical treatment. Many different surgical options are available; open reduction and internal fixa...

T-Condylar fracture of the distal humerus is rare in the skeletally immature children and is very rare in young children, under 9 years of age. This fracture has been classified  as:  type A ( minimally displaced or undisplaced), type B (displaced  but  not comminuted ) and type C (displaced and comminuted). Herein, we report a T-Condylar fracture of the distal humerus in a 5-yr-old boy. This f...

BACKGROUND Scheuermann's disease is regarded as the most common cause of structural hyperkyphosis within adolescents without any proper treatment. It may lead to progressive deformity and back pain which influences patient's quality of life during adolescence and adulthood. Treatment approach to Scheuermann's kyphosis has not been clearly defined due to its different definitions and obscure nat...

River widening is commonly used as a solution for the rehabilitation of rivers with the main purposes of allowing the river to adjust to its natural dynamics and to improve riparian and instream habitat for flora and fauna, by increasing the heterogeneity in substrate, flow and morphology. Local widening may also be used for confluences rehabilitation as, for many of them, the heterogeneity and...