Development of an Underground Tunnels Detection Algorithm for Electrical Resistivity Tomography Based on Deep Learning

Kinmen Island was in a state of combat readiness during the 1950s–1980s. It opened for tourism in 1992, when all troops withdrew from the island. Most military installations, such as bunkers, anti airborne piles, and underground tunnels, became deserted and disordered. The entries to numerous underground bunkers are closed or covered with weeds, creating dangerous spaces on the island. This study evaluates the feasibility of using Electrical Resistivity Tomography (ERT) to detect and discuss the location, size, and depth of underground tunnels. In order to discuss the reliability of the 2D-ERT result, this study built a numerical model to validate the correctness of in situ measured data. In addition, this study employed the artificial intelligence deep learning technique for reprocessing and predicting the ERT image and discussed using an artificial intelligence deep learning algorithm to enhance the image resolution and interpretation. A total of three 2D-ERT survey lines were implemented in this study. The results indicate that the three survey lines clearly show the tunnel location and shape. The numerical simulation results also indicate that using 2D-ERT to survey underground tunnels is highly feasible. Moreover, according to a series of studies in Multilayer Perceptron of deep learning, using deep learning can clearly show the tunnel location and path and effectively enhance the interpretation ability and resolution for 2D-ERT measurement results.

States of Emergency

More than one hundred years after the conclusion of the First World War, the edited collection States of Emergency. Architecture, Urbanism, and the First World War reassesses what that cataclysmic global conflict meant for architecture and urbanism from a human, social, economic, and cultural perspective. Chapters probe how underdevelopment and economic collapse manifested spatially, how military technologies were repurposed by civilians, and how cultures of education, care, and memory emerged from battle. The collection places an emphasis on the various states of emergency as experienced by combatants and civilians across five continents—from refugee camps to military installations, villages to capital cities—thus uncovering the role architecture played in mitigating and exacerbating the everyday tragedy of war.

Contraband Hospital, Freedmen’s Hospital, and Alexander Augusta

The tens of thousands of enslaved Blacks liberated by union forces during the American Civil War were considered seized property and thus were referred to as contraband. As wartime refugees they sought protection in federal military installations, popularly known as contraband camps, located throughout the occupied South. One of the largest was Camp Baker in the rural northwestern sector of Washington, DC, where about 40,000 persons were sheltered. To provide basic medical care, the military outfitted, in 1863, an infirmary called the Contraband Hospital, later renamed Freedmen’s Hospital. From its founding in 1867 the medical department of Howard University was attached to Freemen’s Hospital, which in 1975 was renamed the Howard University Hospital, the two institutions establishing a long partnership of medical education and hospital care that continues to the present day.

Walkable City and Military Enclaves: Analysis and Decision-Making Approach to Support the Proximity Connection in Urban Regeneration

Accessibility and urban walkability are the cornerstones of urban policies for the contemporary city, which needs to be oriented towards sustainable development principles and models. Such aims are included in the objectives of the 2030 Agenda, as well as in the ambitious objectives of the ‘European Green Deal’. These concepts are closely linked to the paradigm of a sustainable city—livable, healthy and inclusive—based on a system of high-quality public spaces and on a network of services and infrastructures, both tangible and intangible, capable of strengthening and building new social, economic and environmental relationships. It is necessary to recognize potential opportunities for connection and permeability in consolidated urban environments. These are very often fragmented and are characterized by enclaves of very different kinds. Ghettoes and gated communities, old industrial plants and military installations and facilities, to cite a few, represent examples of cases where closures on urban fabrics are realized, impeding full walkability and accessibility. Within such a framework, the present research is aimed at focusing on a particular set of enclaves, such as those represented by the military sites being reconfigured to civilian use, a phenomenon that characterizes many urban areas in the world; in Europe; and in Italy, in particular, given the recent history and the Cold War infrastructure heritage. In such a sense, the city of Cagliari (Sardinia Island, Italy) represents an interesting case study as it is characterized by the presence of a series of military complexes; real ‘enclaves’ influencing the proximity connections; and, more generally, walkability. Building on previous research and analysis of policies and projects aimed at reintroducing, even partially, this military asset into civilian life (Green Barracks Project (GBP)-2019), this paper proposes and applies a methodology to evaluate the effects of urban regeneration on walkability in a flexible network logic, oriented to the ‘15 min city’ model or, more generally, to the renewed, inclusive, safe “city of proximity”, resilient and sustainable.

Taking Care Against the Computer

The obligations of international humanitarian law are not limited to the attacker; the defender is also required to take steps to protect civilians from harm. The requirement to take precautions against the effects of attack requires the defender to minimize the risk that civilians and civilian objects will be harmed by enemy military operations. At its most basic, it obliges defenders to locate military installations away from civilians. Furthermore, where appropriate, the status of objects should be clearly marked. It is – somewhat counterintuitively – about making it easier for the attacker to select lawful targets by making visible the distinction between civilian objects and military objectives. The increasing importance of digital infrastructure to modern life may make complying with these precautionary obligations more complicated. Maintaining separation between military and civilian networks is challenging as both operate using at least some of the same infrastructure, relying on the same cables, systems, and electromagnetic spectrum. In addition, the speed at which operations against digital infrastructure can occur increases the difficulty of complying with the obligation – particularly if such operations involve a degree of automation or the use of artificial intelligence (ai). This paper sets out the source and extent of the obligation to take precautions against hostile military operations and considers how they might apply to digital infrastructure. As well as clarifying the extent of the obligation, it applies the obligation to take precautions against hostile military operations to digital infrastructure, giving examples of where systems designers are taking these obligations into account, and other examples of where they must.

'The Technological Sublime': Combining Art and Archaeology in Documenting Change at the Former RAF Coltishall (Norfolk, UK)

Since at least the 1990s, archaeologists and artists have been documenting military installations following the withdrawal of service personnel. They have usually embarked on these recording opportunities separately, experiencing these sites as derelict, lifeless places, with stripped buildings devoid of much of their meaning after their occupants have left. Archaeologists have typically created maps and made photographs. Artists have also taken photographs, but in addition made films and created soundworks. Wherever the medium and the motivation, the assumption is usually made that only those closely familiar with the rhythms and rituals of service life can begin to understand the emptiness of what remains. And being secretive military installations, creating a record during their occupation is never an option. Uniquely, in the months leading to the closure of RAF Coltishall (Norfolk) in 2006, the RAF granted the authors unprecedented access to record the base's drawdown and closure. The project brought artists and archaeologists together to see what could be achieved in unison, while still maintaining some degree of research independence. In undertaking this survey, three related themes emerged: the role of art as heritage practice, new thinking on what constitutes landscape, and the notion of a 'technological sublime'. Following an earlier publication, we now reflect again on those themes. In doing so, we offer this collaboration between art and archaeology (traditionally considered two distinct ways of seeing and recording) as an innovative methodology for documentation, not least after the closure and abandonment of such military and industrial landscapes, where occupational communities had once lived. In this article, the words represent our ideas; the images and films are an example of the result.

Engineering With Nature® : supporting mission resilience and infrastructure value at Department of Defense installations

This book illustrates some of the current challenges and hazards experienced by military installations, and the content highlights activities at seven military installations to achieve increased resilience through natural infrastructure.

Salvaging Marginalized Men: How the Department of Defense Waged the War on Poverty

Architects of social welfare policy in the Kennedy and Johnson administrations viewed the military as a site for strengthening the male breadwinner as the head of the “traditional family.” Daniel Patrick Moynihan and Robert McNamara—men not often mentioned in the same conversations—both spoke of “salvaging” young men through military service. The Department of Defense created Project Transition, a vocational jobs-training program for GIs getting ready to leave the military, and Project 100,000, which lowered draft requirements in order to put men who were previously unqualified into the military. The Department of Defense also made significant moves to end housing discrimination in communities surrounding military installations. Policymakers were convinced that any extension of social welfare demanded reciprocal responsibility from its male citizens. During the longest peacetime draft in American history, policymakers viewed programs to expand civil rights and social welfare as also expanding the umbrella of the obligations of citizenship.