Lateral Image PZT. Description and Operating Method

AbstractWe faced the problem of designing and building a Photographic Zenith Tube with mercury basin and lateral plate-holder system providing enough accuracy to allow the determination of astronomical coordinates. This instrumentis intended to work as a prototype of a bigger and more accurate one to be designed and developed in the future (Lopez, A. et al.: 1983).</jats:p

Digital Image Processing in the Analysis of Astrometric Plates

AbstractIn this paper, we display an improvement to our process of semi-automatic measuring of astrometric plates, in which the photometric sensor is substituted by a CCD system of image getting and digitalization. The advantages of this method are analyzed taking into account the possibilities of the image analysis in the space and frequency domain.</jats:p

Design and Simulation of a High Precision Drug Delivery System

AbstractThis work describes the design and simulation using Computational Fluid Dynamics (CFD) of a High Precision Drug Delivery System which is part of a bionic pancreas. The system interacts in a dynamic and intelligent way with other subsystems of the device, which includes a non-invasive monitor of glucose and the control algorithm for the entire system. P-MEM Microfabrication technology brings the opportunity to construct these devices in the scale of micrometers, in order to have a device with high portability, low power consumption, reliability and low cost. The system has the potential to deliver highly controlled doses of insulin and glucagon in order to achieve a high level of personalization of the therapy. This paper will discuss the design parameters of the device, velocity, pressure and dimensions. Velocity determines the possibility to create monodisperse microdroplets, and pressure the validity of the microfabrication process

A study of the effect of molecular and aerosol conditions in the atmosphere on air fluorescence measurements at the Pierre Auger Observatory

Contains fulltext : 84338.pdf (preprint version ) (Open Access)21 p

The value of government mandated location-based services in emergencies in Australia

The adoption of mobile technologies for emergency management has the capacity to save lives. In Australia in February 2009, the Victorian Bushfires claimed 173 lives, the worst peace-time disaster in the nation’s history. The Australian government responded swiftly to the tragedy by going to tender for mobile applications that could be used during emergencies, such as mobile alerts and location services. These applications have the ability to deliver personalized information direct to the citizen during crises, complementing traditional broadcasting mediums like television and radio. Indeed governments have a responsibility to their citizens to safeguard them against both natural and human-made hazards and today national security has grown to encapsulate such societal and economic securitization. However, some citizens and lobby groups have emphasized that such breakthrough technologies need to be deployed with caution as they are fraught with ethical considerations, including the potential for breaches in privacy, security and trust. The other problem is that real world implementations of national emergency alerts have not always worked reliably and their value has come into question as a result. This paper provides a big picture view of the value of government-mandated location-based services during emergencies, and the challenges ensuing from their use