The United States faces decisions requiring information about the oceans in vastly expanded scales of time and space and from oceanic sectors not accessible with the suite of tools now used by scientists and engineers. Advances in guidance and control, communications, sensors, and other technologies for undersea vehicles can provide an opportunity to understand the oceans' influence on the energy and chemical balance that sustains humankind and to manage and deliver resources from and beneath the sea. This book assesses the state of undersea vehicle technology and opportunities for vehicle applications in science and industry. It provides guidance about vehicle subsystem development priorities and describes how national research can be focused most effectively.

America's unrestricted access to the Atlantic and Pacific Oceans, Gulf of Mexico, rivers, Great Lakes, and Arctic region powers domestic and global commerce. The ease of moving cargo and people beyond our coasts fuels the Nation's competitive advantage, advances trade, generates capital, and drives the domestic economy forward, in turn projecting strength abroad and safeguarding our national interests. Similarly, the biological diversity and productivity of the ocean sustains the health of coastal communities and promotes a vibrant national economy. The ocean also plays a fundamental role in the Earth system. Ensuring responsible ocean stewardship with science and technology (S&T) breakthroughs depends on a strategic Federal portfolio supported by foundational basic research. Science and Technology for America's Oceans: A Decadal Vision identifies pressing research needs and areas of opportunity within the ocean S&T enterprise for the decade 2018-2028.

This book systematically introduces the new technology used in the construction of underwater large slurry shields under complex conditions. The basic principles, scope of application, construction technology and technical points of the key technologies such as the origin and arrival of the shield, crossing the shallow soil in the middle of the river, crossing the guard, and changing the knife and opening the knife are clarified.

Explores the depths of Earth's oceans to discover a long-hidden world of alien creatures, vanished civilizations, and lost ships, and describes the new technologies that make such expeditions possible.

This volume of collected studies takes stock of most recent developments in Egyptology and the Digital Humanities, considering future directions for the application of new technologies in Egyptology. The book presents the results of an international conference held in 2019 at Indiana University – Bloomington, in which Egyptologists and digital humanists with interest in Egyptology gathered in 2019 to present current projects in 3D modeling, virtual and augmented reality, game technology, digital pedagogy, database projects, computational and corpus linguistics and E-publications. Those projects, along with a selection of others that were not presented in Bloomington, are now described and discussed in this volume.

Communities around the United States face the threat of being underwater. This is not only a matter of rising waters reaching the doorstep. It is also the threat of being financially underwater, owning assets worth less than the money borrowed to obtain them. Many areas around the country may become economically uninhabitable before they become physically unlivable. In Underwater, Rebecca Elliott explores how families, communities, and governments confront problems of loss as the climate changes. She offers the first in-depth account of the politics and social effects of the U.S. National Flood Insurance Program (NFIP), which provides flood insurance protection for virtually all homes and small businesses that require it. In doing so, the NFIP turns the risk of flooding into an immediate economic reality, shaping who lives on the waterfront, on what terms, and at what cost. Drawing on archival, interview, ethnographic, and other documentary data, Elliott follows controversies over the NFIP from its establishment in the 1960s to the present, from local backlash over flood maps to Congressional debates over insurance reform. Though flood insurance is often portrayed as a rational solution for managing risk, it has ignited recurring fights over what is fair and valuable, what needs protecting and what should be let go, who deserves assistance and on what terms, and whose expectations of future losses are used to govern the present. An incisive and comprehensive consideration of the fundamental dilemmas of moral economy underlying insurance, Underwater sheds new light on how Americans cope with loss as the water rises.

All life came from sea but all robots were born on land. The vast majority of both industrial and mobile robots operate on land, since the technology to allow them to operate in and under the ocean has only become available in recent years. A number of complex issues due to the unstructured, hazardous undersea environment, makes it difficult to travel in the ocean while today's technologies allow humans to land on the moon and robots to travel to Mars . . Clearly, the obstacles to allowing robots to operate in a saline, aqueous, and pressurized environment are formidable. Mobile robots operating on land work under nearly constant atmospheric pressure; their legs (or wheels or tracks) can operate on a firm footing; their bearings are not subjected to moisture and corrosion; they can use simple visual sensing and be observed by their creators working in simple environments. In contrast, consider the environment where undersea robots must operate. The pressure they are subjected to can be enormous, thus requiring extremely rugged designs. The deep oceans range between 19,000 to 36,000 ft. At a mere 33-foot depth, the pressure will be twice the normal one atmosphere pressure of 29. 4 psi. The chemical environment of the sea is highly corrosive, thus requiring the use of special materials. Lubrication of moving parts in water is also difficult, and may require special sealed, waterproof joints.