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This paper aims to develop an electrochemical dechlorination method for large objects in a short time, which were for a long time in the sea. Traditionally, in conservation, chlorides are extracted from marine iron artifacts using complete immersion of those objects in alkaline solutions with or without electrolysis. However, these techniques are time-consuming and very costly, especially when applied to large marine artifacts such as cannons and anchors.

An appropriate sponge was chosen based on resistance to NaOH and the rate of exacted chlorides. Application of electrochemical dechlorination in situ and removal of chloride were measured by the scanning electron microscope (SEM)-EDAX method on the corrosion products and by titration of the electrolysis solution. X-ray diffraction (XRD) method is used for identification of corrosion products before and after application of electrochemical chloride extraction.

The electrochemical chloride extraction (ECE) method is applied against the corrosion of reinforced concrete. From the authors’ research, it is obvious that ECE can successfully extract chlorides from dried large metallic objects exported from the sea. The method of ECE removes the majority of chlorides from the metal during conservation treatment so that the application of organic coating will allow the object to remain stable over a long period.

A new methodology was developed for dechlorination of metallic objects exported from the sea in a short time and thus the consumption of chemical reagents was cut down.

The chemical behaviour within the occluded cell of simulated cast iron artefact in 3.5 percent NaCl solution has been investigated by means of a simulated occluded cell. It was observed that the pH value and the amount of Cl⁻ migration in the occluded cell were related to the quantity of passing electric current. Electrochemical techniques were capable of providing information on the behaviour of the cast iron in a simulated occluded cell at various time intervals. The results of potentiodynamic polarisation and impedance measurements indicated that corrosion potentials became more negative and the cast iron was corroded more seriously. SEM micrographs clearly revealed the morphologies of specimens after simulated occluded cell galvanostatic tests for different time intervals at 1 mA/cm² anodic current density. An auto‐catalysing process was responsible for the enrichment of chloride ions in occluded cell which was confirmed by Energy Dispersive Spectroscopy (EDS).

In the first decades of the nineteenth century to the first decade of the twentieth century, the US Federal and Supreme Courts heard several cases on the legal status of ships. During this period, Chief Justice John Marshall and Justice Joseph Story determined that a ship was a legal person that was capable to contract and could be punished for wrongdoing. Over the nineteenth century, Marshall and Story also heard appeals on the illegal slave trade and on the status of fugitive slaves crossing state lines, cases that raised questions as to whether enslaved peoples were persons or property. Although Marshall and Story did not discuss the ship and the slave together, in this chapter, the author asks what might be gained in doing so. Specifically, what might a reading of the ship and the slave as juridical figures reveal about the history of legal personhood? The genealogy of positive and negative legal personhood that the author begins to trace here draws inspiration and guidance from scholars writing critically of slavery. In different ways, this literature emphasises the significance of maritime worlds to conceptions of racial terror, freedom, and fugitivity. Building on these insights, the author reads the ship and the slave as central characters in the history of legal personhood, a reading that highlights the interconnections between maritime law and the laws of slavery and foregrounds the changing intensities of Anglo imperial power and racial and colonial violence in shaping the legal person.

The Accrington Brick & Tile Co Ltd. It will be unusual to find a brick manufacturer exhibiting at the UK Corrosion Exhibition. But, The Accrington Brick & Tile Co Ltd is no ordinary brick maker. Its speciality is the design and manufacture of chemical resistant bricks, tiles, paver and other components including purpose‐made linings.

This paper aims to investigate the history and distribution of trade ceramics in Southeast Asia over a thousand-year period stretching from the ninth to the early nineteenth century CE.

The study takes a material culture approach to the writing of marketing history by researching the ceramics trade from the starting point of artifacts and their social context. It draws from literatures on Chinese and Southeast Asian ceramics art history and archaeology. It also is informed by first-hand experience inspecting surviving artifacts in shops, talking to dealers and taking in museum displays.

After a brief historical overview of the ceramics trade in Southeast Asia, the research further explores topics in physical distribution (transportation routes, hubs and local marketplaces and ships, cargo and packing) and product assortments, adaptation and globalization of consumer culture.

The art history and archaeological literatures provide a good overview of the ceramics trade and analysis of surviving material artifacts, but only limited information about distribution and consumption. Many questions remain unanswered.

This study contributes to international business and marketing history by documenting a thousand years of trade among China, mainland and insular Southeast Asia, and a long-standing cultural exchange facilitated by seaborne commerce. It also shares a marketing perspective with the fields of Southeast Asian art history and archaeology. Research in marketing history has neglected this region. To fully understand the development of marketing in the pre-industrial era, accounts from civilizations outside the West must be included.

This study aimed to identify the potential for economic activities related to the ocean economy in Brazil to become blue economy (BE) activities, in which the concept of the Sustainable Development Goals (SDGs) is central.

To achieve the aim, the authors collected information on the SDGs and estimated data from the ocean economy sectors for the 256 Brazilian coastal cities. The authors predicted the indices for potential development of territories and sectors in the BE using two parameters: employed persons (EP) and sectoral added value (AV).

The results show that the capitals of coastal states present the highest potential indices for the BE, especially Rio de Janeiro, which accounted for 83.3% of sectoral added value in the Brazilian ocean economy with potential for sustainable development and generated 107,800 active formal jobs (26.9% of the country's total). In addition, restaurants, hotels and similar establishments are, on the Brazilian coast, the most frequent on the coastal zone and have the highest potential for BE activities.

Regarding its contributions, this research innovates by developing an indicator that can help stakeholders understand the similarities and differences between cities and regions, whether through a social, economic, or environmental lens. Therefore, by following this methodological path for measuring the BE, viewing the distinct patterns of sustainable development by area is possible, thereby supporting action plans for the fulfillment of the 2030 Agenda and the implementation of a marine spatial planning process for the country in the context of the Ocean Decade (2021–2030).

The peer review history for this article is available at: https://publons.com/publon/10.1108/IJSE-02-2023-0112

This paper reports on the analysis of the principalship as portrayed in a sample of 48 films. The analysis reveals that, unlike the timid, obsequious pastor in the Western and the bullying marine sergeant in a war movie, for example, there is little that is stereotypic about the role of the school principal and the types of leadership practised; there is no single model of the “successful” (or, for that matter, “unsuccessful”) principal. Success, however defined, has been achieved by some but it has eluded others. Admittedly, one can readily identify common themes associated with the principalship, for example, the vesting of authority, the exercise of power, relationships with teachers, students and community, and so on. And yet, against this common backdrop, countless scenes have been enacted in which the role of the principal has been one of great variation. Portrayals of roles are, of course, the outcome of the interaction of author, scriptwriter, actor, director ‐ to name but some of those involved in the production of a film. Nevertheless, they provide at times quite extraordinary insights into others’ perceptions of both the role and the exercise of leadership in schools and school communities. For those involved in programs designed to prepare educationists for the principalship, considerable satisfaction is to be found in the variety of representations of this office that are displayed per medium of film. Films provide a legitimate basis on which to analyse leadership behaviour and from which a greater sensitivity to the role may be developed.

The programme opened with a paper by Professor Ritchie Calder. Mr E.J.Carter, lately Head of the Libraries Division of Unesco, was in the chair, and introduced Ritchie Calder as not only the ‘top United Kingdom science reporter’ but also as a man passionately committed to the task of interpreting science to the layman.

To achieve a full understanding of the role of marketing from plan to profit requires a knowledge of the basic building blocks. This textbook introduces the key concepts in the art or science of marketing to practising managers. Understanding your customers and consumers, the 4 Ps (Product, Place, Price and Promotion) provides the basic tools for effective marketing. Deploying your resources and informing your managerial decision making is dealt with in Unit VII introducing marketing intelligence, competition, budgeting and organisational issues. The logical conclusion of this effort is achieving sales and the particular techniques involved are explored in the final section.

Distress signalling according to generally accepted methods and codes has always been the main reason for human survival in sea disasters. Examines the origin of this type of communication and its connection to natural senses and channels together with the alphabets, codes and special distress signals used at sea. Reviews the evolution and transformation of the old channels through the introduction of electronic communication, and the opening of some entirely new channels. Compares the different distress channels and makes some proposals concerning new distress signals.