Collecting and storing solar energy will be a key part of efficient renewable technologies for buildings of the future, particularly in the Middle East. This paper presents the topic of improved properties of optical concentrators to achieve increased solar energy gain. The Solar Photonic Optoelectronic Transformer (SPOT) system is one of the components of the SolarBrane, a Building Integrated ...

Radiotherapy wedges constitute an important group within the generic classification of so-called Beam Modification Devices (BMD). Wedges are subdivided into Static, Dynamic, and Omni Wedges sug-groups. The standard static wedge attenuates the beam progressively, in such a way that the dose delivery is higher at the thin side, and lower at the broader side. The slope of the inferior surface has ...

the aim of this work is to find an efficient aerodynamic-based design algorithm for projectile fins and configuration shape optimization. three-dimensional supersonic flow over a projectile with fins at much number 5 and one degree angle of attack was studied. the runge-kutta method and multi-block technique was used to solve the governing equations. a basic configuration was assumed for the fi...

In the present paper, a supersonic wind-tunnel is designed to maintain a flow with Mach number of 3 in a 30cm×30cm test section. An in-house CFD code is developed using the Roe scheme to simulate flow-field and detect location of normal shock in the supersonic wind-tunnel. In the Roe scheme, flow conditions at inner and outer sides of cell faces are determined using an upwind biased algorithm. ...

In this work, the natural geometric relation between the space time block code design for the unknown channel at the receiver and its counterpart design for the known channel at the receiver is exploited, to establish an estimate on the corresponding diversities. This leads to a decomposition result and splits the code design problem into two complexity reduced sub tasks. Moreover a geometrical...