Swine flu (swine influenza) is a respiratory disease caused by viruses (influenza viruses) that infect the respiratory tract of pigs and result in nasal secretions, a barking cough, decreased appetite, and listless behaviour.
Influenza A viruses in swine are categorized into subtypes based on two viral surface antigens called hemagglutinin (H) and neuraminidase (N).
At this time, there are four main influenza type A virus subtypes that have been isolated in pigs: H1N1, H1N2, H3N2 and H3N1. However, most of the recently isolated influenza viruses from pigs have been H3N2 and H1N1 viruses. The current outbreak of swine flu that has infected humans is of the H1N1 type.
The virus spreads by tiny droplets that are released when a person coughs or sneezes
Common objects such as door handles, remote control, hand rails and computer keyboards can get contaminated with the virus when the droplet settles on these surfaces
fever (100 0F or greater), cough, nasal secretions, fatigue, and headache, with fatigue being reported in most infected individuals. Some patients also get nausea, vomiting, and diarrhea.
Some people are more at risk of complications if they catch flu. People are particularly vulnerable if they have:
• chronic (long-term) lung disease
• chronic heart disease
• chronic kidney disease
• chronic liver disease
• chronic neurological disease (neurological disorders include motor neurone disease, multiple sclerosis and Parkinson’s disease)
• immunosuppression (whether caused by disease or treatment)
• diabetes mellitus
STRaND-1 is a 30cm cubesat weighing 3.5kg. At the heart of the satellite is a Google Nexus One smartphone with an Android operating system.Smartphones are highly advanced and incorporate several key features that are integral to a satellite such as cameras, radio links, accelerometers and high performance computer processors- almost everything except solar panels and propulsion.
During the first phase of the mission, STRaND-1 will use a number of experimental Apps to collect data, while a new high-speed linux-based cubesat computer developed by SSC will take care of the satellite. During phase two, the STRaND team will switch the satellite’s in-orbit operations to the smartphone, thereby testing the capabilities of a number of standard smartphone components for a space environment.
About Surrey Space Centre, University of Surrey
The Surrey Space Centre (SSC), a Research Centre of the Faculty of Electronics and Physical Sciences (FEPS) at the University of Surrey, is a world leading Centre of Excellence in Space Engineering, whose aim is to underpin the technical development of the space industry through its advanced research programmes. SSC, comprising over 90 researchers and faculty specializing in small satellite techniques, develops new innovative technologies which are exploited by the space industry. It provides well-focused space engineering education, postgraduate and industrial short courses, training the next generation space scientists, engineers, entrepreneurs and business leaders
It will also include innovative propulsion systems known as WARP DRIVE (Water Alcohol Resisto-jet Propulsion De-orbit Re-entry Velocity Experiment) which uses a water/alcohol mixture for propulsion, along with a set of Pulsed Plasma Thrusters (PPTs) that use an electric arc to vaporize a solid propellant. Finally, the STRaND-1 will include the first 3D-printed part in space.
Different applications present in satellite
iTesa will record the magnitude of the magnetic field around the phone during orbit.
The STRAND Data app will show satellite telemetry on the smartphone’s display which can be imaged by an additional camera on-board.
The 360 app will take images using the smartphone’s camera and use the technology onboard the spacecraft to establish STRaND-1′s position.
The Scream in Space app will make full use of the smartphone’s speakers.