Nima Nikzad

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Environmental exposures are a critical component in the development of chronic conditions such as asthma and cancer. Yet, medical and public health practitioners typically must depend on sparse regional measurements of the environment that provide macro-scale summaries. Recent projects have begun to measure an individual's exposure to these factors, often(More)
Individual and community health can be greatly impacted by poor air quality. Unfortunately air quality metrics are hard for individuals to obtain and are often not precise enough for people to make the inferences they need to construct positive personal health choices. Through the Citisense mobile air quality system we enable users to track their personal(More)
Energy-efficiency is a key concern in continuously-running mobile applications, such as those for health and context monitoring. Unfortunately, developers must implement complex and customized power-management policies for each application. This involves the use of complex primitives and writing error-prone multithreaded code to monitor hardware state. To(More)
In this work we present CitiSense, a new kind RI ³FLWL]HQ LQIUDVWUXFWXUH´for the monitoring of pollution and environmental conditions that users are exposed to. By utilizing mobile phones and affordable, small sensors placed in the environment and carried by users, data about pollutants such as ozone and carbon monoxide is collected and used to provide(More)
While the connectivity, sensing, and computational capabilities of today's smartphones have increased, congestion in wireless channels and energy consumption remain major issues. We present a technique for model-driven adaptive environmental sensing, designed to reduce the amount of data that is communicated over the cellular network. In simulations of an(More)
Poor air quality is a growing global health concern that impacts millions of people worldwide. Although we are beginning to understand the health impacts of air pollution, it remains a challenge to provide people with the information they need to be able to make health-conscious choices. The CitiSense system gives individuals the real-time tools they need(More)
— Recently, regarding to the occurrence of global challenges including economic recession, continental changes and public consequences, human's creativity and inventions(Patent) are essential to find out sufficient solutions in future. Also, country of origin is used to categorize Intellectual Property(IP) data by resident(domestic) and(More)
—While cameras have the potential to enable many applications in sensor networks, to be effective they first must be localized. In prior systems, cameras, identified by controllable light sources, utilized angular measurements amongst themselves to determine their relative positions and orientations. However, the typical camera's narrow field of view makes(More)