scholarly journals Drone-Based Non-Destructive Inspection of Industrial Sites: A Review and Case Studies

Drones ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 106
Author(s):  
Parham Nooralishahi ◽  
Clemente Ibarra-Castanedo ◽  
Shakeb Deane ◽  
Fernando López ◽  
Shashank Pant ◽  
...  

Using aerial platforms for Non-Destructive Inspection (NDI) of large and complex structures is a growing field of interest in various industries. Infrastructures such as: buildings, bridges, oil and gas, etc. refineries require regular and extensive inspections. The inspection reports are used to plan and perform required maintenance, ensuring their structural health and the safety of the workers. However, performing these inspections can be challenging due to the size of the facility, the lack of easy access, the health risks for the inspectors, or several other reasons, which has convinced companies to invest more in drones as an alternative solution to overcome these challenges. The autonomous nature of drones can assist companies in reducing inspection time and cost. Moreover, the employment of drones can lower the number of required personnel for inspection and can increase personnel safety. Finally, drones can provide a safe and reliable solution for inspecting hard-to-reach or hazardous areas. Despite the recent developments in drone-based NDI to reliably detect defects, several limitations and challenges still need to be addressed. In this paper, a brief review of the history of unmanned aerial vehicles, along with a comprehensive review of studies focused on UAV-based NDI of industrial and commercial facilities, are provided. Moreover, the benefits of using drones in inspections as an alternative to conventional methods are discussed, along with the challenges and open problems of employing drones in industrial inspections, are explored. Finally, some of our case studies conducted in different industrial fields in the field of Non-Destructive Inspection are presented.

Author(s):  
James McElvenny

This chapter sets the scene for the case studies that follow in the rest of the book by characterising the ‘age of modernism’ and identifying problems relating to language and meaning that arose in this context. Emphasis is laid on the social and political issues that dominated the era, in particular the rapid developments in technology, which inspired both hope and fear, and the international political tensions that led to the two World Wars. The chapter also sketches the approach to historiography taken in the book, interdisciplinary history of ideas.


Author(s):  
A. R. Lang

AbstractX-ray topography provides a non-destructive method of mapping point-by-point variations in orientation and reflecting power within crystals. The discovery, made by several workers independently, that in nearly perfect crystals it was possible to detect individual dislocations by X-ray diffraction contrast started an epoch of rapid exploitation of X-ray topography as a new, general method for assessing crystal perfection. Another discovery, that of X-ray Pendellösung, led to important theoretical developments in X-ray diffraction theory and to a new and precise method for measuring structure factors on an absolute scale. Other highlights picked out for mention are studies of Frank-Read dislocation sources, the discovery of long dislocation helices and lines of coaxial dislocation loops in aluminium, of internal magnetic domain structures in Fe-3 wt.% Si, and of stacking faults in silicon and natural diamonds.


2018 ◽  
Vol 9 (1) ◽  
pp. 107-126
Author(s):  
Birgit Schneider

The article discusses how current mediated conditions change nature perception from a media study perspective. The article is based on different case studies such as the current sensation of atmospheric change through sensible media attached to trees which get published via Twitter, the meteorologist Amazonian Tall Tower Observatory and the use of gutta percha derived from tropical trees for the production of cables in the history of telegraphy. For analysing the examples, the perspective of »media as environments« is flipped to »environments as media«, because this focus doesn’t approach media from a networked and technological perspective primarily but makes productive the elemental character of basic »media« like air, earth and water


1982 ◽  
Vol 20 (1) ◽  
pp. 46
Author(s):  
Donald H. Watkins ◽  
James G. McKee

This paper examines the recent changes in federal oil and gas taxation, with particular focus upon the new Canadian ownership rules arising from the National Energy Program.


Author(s):  
Andrew J. Komrowski ◽  
Luis A. Curiel ◽  
Daniel J. D. Sullivan ◽  
Quang Nguyen ◽  
Lisa Logan-Willams

Abstract The acquisition of reliable Acoustic Micro Images (AMI) are an essential non-destructive step in the Failure Analysis (FA) of electronic packages. Advanced packaging and new IC materials present challenges to the collection of reliable AMI signals. The AMI is complicated due to new technologies that utilize an increasing number of interfaces in ICs and packages. We present two case studies in which it is necessary to decipher the acoustic echoes from the signals generated by the interface of interest in order to acquire trustworthy information about the IC package.


2012 ◽  
Vol 10 (2) ◽  
pp. 147-162
Author(s):  
Budi Setiyono ◽  
Dio Satrio Jati ◽  
Teten Jamaludin

Cepu Block located between Centre Jawa and East Java. It is known as a rich block because it has a source of oil and gas. Block Cepu, where geographically located between three districts, Blora (Centre Java), Bojonegoro and Tuban (East Java) has given a contribution to national budget (APBN) and respected local government budget (APBD). About 33 per cent of the land of Cepu Block is owned by Blora, 67 per cent owned by Bojonegoro and the rest is owned by Tuban. Ironically, however, although 33 per cent of the Block belongs to Blora, the district does not receive any financial income from the oil exploration. There is no resources share fund from Cepu Block. Moreover, the district has to deal with the negative impacts of exploration activities at the Block Cepu such as damaging of infrastructure, environmental pollution, and social disturbance. Blora District has protested to Centre Government, but so far there is no outcome. Centre Government asked that this problem should be studied first. The central government argue that if it is approved, then there will be domino impact: other districts will do the same like Blora. Blora district is struggling to get equality in resources share fund (dana bagi hasil). Efforts have done, seminars and workshops, lobby to DPD (Upper House) to find a solution. Now the district government is proposing judicial review to constitution court. This research examines the history of Block Cepu. It reveals the history of the block from the colonial era up to the reformation era. Further, the research aims to know how the tension between local government (Blora Government) and central government regarding Blok Cepu oil exploration. The research suggests that there is injustice in the distribution of revenue from the exploration and it is understandable if Blora district government struggle to get proportional revenue sharing.


Author(s):  
Susanna Braund ◽  
Zara Martirosova Torlone

The introduction describes the broad landscape of translation of Virgil from both the theoretical and the practical perspectives. It then explains the genesis of the volume and indicates how the individual chapters, each one of which is summarized, fit into the complex tapestry of Virgilian translation activity through the centuries and across the world. The volume editors indicate points of connection between the chapters in order to render the whole greater than the sum of its parts. Braund and Torlone emphasize that a project such as this could look like a (rather large) collection of case studies; they therefore consider it important to extrapolate larger phenomena from the specifics presented here


Author(s):  
Paul Stevens

This chapter is concerned with the role of oil and gas in the economic development of the global economy. It focuses on the context in which established and newer oil and gas producers in developing countries must frame their policies to optimize the benefits of such resources. It outlines a history of the issue over the last twenty-five years. It considers oil and gas as factor inputs, their role in global trade, the role of oil prices in the macroeconomy and the impact of the geopolitics of oil and gas. It then considers various conventional views of the future of oil and gas in the primary energy mix. Finally, it challenges the drivers behind these conventional views of the future with an emphasis on why they may prove to be different from what is expected and how this may change the context in which producers must frame their policy responses.


Author(s):  
Louçã Francisco ◽  
Ash Michael

Chapter 7 describes the origins of the Chicago School and its successful projection into the hearts and minds of the global ruling class. Working chronologically, there is a description of how this program took root in Chicago and how some of its central figures, Friedman and Harberger, undertook a hemispheric campaign to capture both academic and government institutions. A history of the deregulation movement in the US and case studies of Mexico, Chile, Argentina, and Brazil highlight the breadth and depth of the campaign. The chapter closes in Europe where the neoliberal insurgency faced more-developed social states. Its success varied in Britain, France, and Germany.


Author(s):  
Michael Brendan Baker

This chapter offers a narrative account of music in Canadian cinema that highlights the contributions of its pioneers. Case studies spanning the critically acclaimed, the curious, and the marginalized allow for an effort to flesh out the place of music, particularly popular music, in this national cinema. While the esthetics and dollars-and-cents of music in film may be similar in Canada as elsewhere, the expectations of filmmakers and audiences are perhaps uniquely Canadian as a result of industrial and institutional forces. Animation, the avant-garde, and documentary are particularly vibrant spaces for the innovative use of music and differentiate the history of music in Canadian cinema from other more commercially oriented contexts.


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