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Over the past fifteen thousand years the Earth has witnessed dramatic changes in sea level. The last Ice Age, when coastlines were more than 700 feet below modern levels, saw rapid global warming, and over the following ten millennia, the oceans climbed in fits and starts. These changes had little impact on the humans of the day, because the earth's population was then so small, and those few people were more mobile than today's static populations. Global sea levels stabilised about five thousand years ago. As urban civilisations developed in Egypt, Mesopotamia and South Asia the curve of inexorably rising seas flattened out. The planet's population boomed, and by the Industrial Revolution was five times its size two thousand years earlier. And as we crowded shorelines to live, fish and trade, we put ourselves at ever greater risk from the oceans. Changes in sea level are historically cumulative and gradual, but since 1860, the world has warmed significantly and the ocean's climb has accelerated again. From the Great Flood to Hurricane Sandy, The Attacking Ocean explores the changing complexity of the relationship between humans and the sea at their doorsteps, and shows how vulnerable our modern society is.

Sea level --- Ocean --- History.

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Ultrasonics is a reliable and proven technology for level measurement. It has been used for decades in many diverse industries such as water treatment, mining, aggregates, cement, and plastics. Ultrasonics provides superior inventory accuracy, process control, and user safety. Understanding Ultrasonic Level Measurement is a comprehensive resource in which you will learn about the history of ultrasonics and discover insights about its systems, installation and applications.

Ultrasonics. --- Level indicators. --- Level gages --- Gages --- Inaudible sound --- Supersonics --- Sound --- Sound pressure

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This work presents a virtual prototyping methodology for the design and verification of industrial devices in the field level of industrial automation systems. This work demonstrates that virtual prototypes can help increase the confidence in the correctness of a design thanks to a deeper understanding of the complex interactions between hardware, software, analog and mixed-signal components of embedded systems and the physical processes they interact with.

Modeling and Simulation --- System Level Design --- Virtual Prototyping

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Salt marshes --- Sea level --- Protection --- Acadia National Park (Me.)

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forestry --- forests --- tropical forests --- biodiversity --- didactics --- education --- primary school level --- coloured photographs