from the article: The demand for a wireless CO2 solution is ever increasing. One of the biggest problems with the majority of commercial available CO2 sensors is the high energy consumption which makes them unsuitable for battery operation. Possible candidates for CO2 sensing in a low power wireless application are very limited and show a problematic calibration process. This study focuses on one of those EMF candidates, which is a Ag4RbI5 based sensor. This EMF sensor is based on the potentiometric principle and consumes no energy. The EMF cell was studied in a chamber where humidity, temperature and CO2 level could be controlled. This study gives an detailed insight in the different drift properties of the potentiometric CO2 sensor and a method to amplify the sensors signal. Furthermore, a method to minimize the several types of drift is given. With this method the temperature drift can be decreased by a factor 10, making the sensor a possible candidate for a wireless CO2 sensor network.
What will a shopping street look like in 2025, when online shopping continues to show double-digit growth? And what will 3D printing do to factories and logistic companies, when we can ‘print’ more and more products at home or around the corner?The digital economy is one of the most pervasive game changers in cities. It creates and destroys, and affects the way cities function in many ways. But what is exactly the digital economy about? How big is it? Which types of transformation is it provoking in urban economies? And, importantly, what can local governments do to cope with the digital transition and foster sustainable urban development?
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Internet on the Outstation provides a new take on the digital divide. Why do whole communities choose to go without the internet when the infrastructure for access is in place? Through an in-depth exploration of the digital practices occurring in Aboriginal households in remote central Australia, the authors address both the dynamics of internet adoption and the benefits that flow from its use. The book challenges us to think beyond the standard explanations for the digital divide, arguing that digital exclusion is not just another symptom of social exclusion. At its heart, Internet on the Outstation is a compelling examination of equality and difference in the digital age, asking: Can internet access help resolve the disadvantages associated with remote living?Internet on the Outstation is the result of a multi-year research collaboration, which included a trial of internet infrastructure, training and maintenance in three small Aboriginal communities (known as outstations). During the research phase, Ellie Rennie, Eleanor Hogan and Julian Thomas were based at the Swinburne Institute for Social Research in Melbourne. Robin Gregory and Andrew Crouch worked at the Centre for Appropriate Technology, an Indigenous-owned research and training organization in Alice Springs. Alyson Wright worked for the Central Land Council, the representative body for traditional owners of the central Australia region.
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