scholarly journals THE PROGRESS OF SURVEY TECHNIQUES IN UNDERWATER SITES: THE CASE STUDY OF CAPE STOBA SHIPWRECK

Author(s):  
E. Costa

<p><strong>Abstract.</strong> The experience on a 10-11th century AD cargo of amphoras of the shipwreck of Cape Stoba, in the island of Mljet, in Croatia could be considered an important example to describe the progress of documentation and survey on a shipwreck. In the first part of the paper, we describe some of the used feasible methods of documentation and their advantages and disadvantages. In the second part, we introduce the three-dimensional reconstruction of the items recovered during the archaeological excavation and how these elements could be integrated to the different types of documentation: bi-dimensional plans, three-dimensional coordinates and multi-image photogrammetry.</p><p>3D reconstruction allows to decrease and optimize time and work during the excavation and to obtain a complete range of data for post-excavation study, permitting to better document, represent and investigate the position of the cargo. Furthermore, 3D modelling offers an attractive display for the public, who can better appreciate cultural heritage and archaeological evidence.</p>

2020 ◽  
Vol 8 (4) ◽  
pp. 351-360
Author(s):  
Matthew D. Howland ◽  
Brady Liss ◽  
Thomas E. Levy ◽  
Mohammad Najjar

AbstractArchaeologists have a responsibility to use their research to engage people and provide opportunities for the public to interact with cultural heritage and interpret it on their own terms. This can be done through hypermedia and deep mapping as approaches to public archaeology. In twenty-first-century archaeology, scholars can rely on vastly improved technologies to aid them in these efforts toward public engagement, including digital photography, geographic information systems, and three-dimensional models. These technologies, even when collected for analysis or documentation, can be valuable tools for educating and involving the public with archaeological methods and how these methods help archaeologists learn about the past. Ultimately, academic storytelling can benefit from making archaeological results and methods accessible and engaging for stakeholders and the general public. ArcGIS StoryMaps is an effective tool for integrating digital datasets into an accessible framework that is suitable for interactive public engagement. This article describes the benefits of using ArcGIS StoryMaps for hypermedia and deep mapping–based public engagement using the story of copper production in Iron Age Faynan, Jordan, as a case study.


1970 ◽  
pp. 22-36
Author(s):  
Jonathan Westin ◽  
Gunnar Almevik

Using the wooden church of Södra Råda as a case study, this article concerns new applications of technology to contextualise and activate archive material in situ at places of cultural significance. Using a combination of augmented reality and virtual reality, we describe a process of turning historical photographs and two-dimensional reconstruction drawings into three-dimensional virtual models that can be lined up to a physical space. The leading questions for our investigation concern how archive material can be contextualised, and how the result may be made accessible in situ and contribute to place development. The result of this research suggests possibilities for using historical photographs to faithfully reconstruct lost historical spaces as three-dimensional surfaces that contextualise documentation and offer spatial information.


2019 ◽  
Vol 21 (1) ◽  
pp. 1-17 ◽  
Author(s):  
Cristine Hermann Nodari ◽  
Luciana Gondim de Almeida Guimarães ◽  
Alipio Ramos Veiga Neto ◽  
Pelayo Munhoz Olea ◽  
Isabel Cristina Rosa Barros Rasia

The analysis of development of innovation in services starts from the interaction of different actors. This research aimed to identify the dynamics of the mobilization of preferences and capabilities of different actors (political decision-makers, users and servers) in the development of the final characteristics of the service and, consequently, of the innovation in the public health context of a municipality located in the south of Brazil. Was carried out analysis of data from descriptive and inferential statistics of case study. The main results highlight the preponderance of the operation of server capacity for mobilization of different types of innovation, and consequently the production of the final characteristics of the health service. In this context, service innovation can finally be taken as the endogenous decision-making process of the organizations that make up the sector and that derive from the very nature of health services. Finally, we described the limitations and future research opportunities.


2019 ◽  
Vol 8 (3) ◽  
pp. 41-54
Author(s):  
Sushitha Susan Joseph ◽  
Aju D.

Three-dimensional reconstruction is the process of acquiring the volumetric information from two dimensions, converting and representing it in three dimensions. The reconstructed images play a vital role in the disease diagnosis, treatment and surgery. Brain surgery is one of the main treatment options following the diagnosis of brain damage. The risk associated with brain surgery is high. Reconstructed brain images help the surgeons to visualize the exact location of tumor, plan and perform the surgical procedures from craniotomy to tumor resection with high precision. This survey provides an overview of the three-dimensional reconstruction techniques in MRI brain and brain tumors. The triangle generation methods and support vector machine methods are briefly described. The advantages and disadvantages of each method is discussed. The comparison reveals that Immune Sphere Shaped Support Vector Machine is the best choice when execution time is considered and triangle mesh generation algorithm is the best when visual quality is considered.


2021 ◽  
Vol 12 (2) ◽  
pp. 169-184
Author(s):  
Kochar Ali Saeed ◽  
Lanya Mohammed Sabir ◽  
Bayar Swara Fatah

This research aims to give a clear image of coursebook evaluation in the English department of Komar University of Science and Technology (KUST) in Iraqi Kurdistan. The focus of this paper is to show the advantages and disadvantages of six coursebooks that are used in the English department of KUST. For this purpose, the researchers conducted interviews with the instructors and a survey with the students of these courses. These interviews and the survey show the good sides and the shortcomings of the studied coursebooks by asking different types of questions related to the contents of the books. The research took place in Fall-Winter 2019. The study results show that two-thirds of the teachers were satisfied with the coursebooks chosen to teach in the department of English to a large degree, and most of the students were satisfied with their coursebooks.


Author(s):  
Raju Narwade ◽  
◽  
Karthik Nagarajan ◽  
Rajnish Singh ◽  
◽  
...  

The construction industry is considered to be one of the rapidly growing industries of India. So, to fulfil such a vast and constantly increasing construction demand the labour productivity is the key factor to maintain client satisfaction, attract investment, and contribute by helping the nation with its economic growth. Aluminium system formwork is one economical and technical approach to effectively maintain productivity of labours on site. Various research studies have been conducted to compare different types of formwork system and the advantages and disadvantages of each type of formwork system are examined in terms of cost, duration, quality etc. There is no standard procedure to put a number on the efficiency of the site labour, using aluminium formwork system in the industry. So, the primary objective of this study is to find the practical labour productivity in aluminium formwork system and the factors affecting the labour productivity. For this, research is performed on Purva Silversands project, Pune, Maharashtra (Residential Project). Labour productivity and its variations could generate a greater impact on the project economy and project duration. Low productivity can decrease profitability and increases construction cost. This case study shows that the actual productivity observed is less than the target productivity in some of the months, the reasons for variation in target and actual productivity is examined and the factors that hamper the productivity mostly are natural (rain), improper management and any breakdown of machinery. Whereas, the maximum productivity achieved in a month is 10.36 sqm per man per day.


Author(s):  
Hichem Guedri ◽  
Jihen Malek ◽  
Hafedh Belmabrouk

In this work, data from two-dimensional (2D) images of the human retina were taken as a case study. First, the characteristic data points had been removed using the Douglas–Peucker (DP) method, and subsequently, more data points were added using random fractal interpolation approach, to reconstruct a three-dimensional (3D) model of the blood vessel. By visualizing the result, we can see that all the small blood vessels in the human retina are more visible and detailed. This algorithm of 3D reconstruction has the advantage of being fast with calculation time less than 40 s and also can reduce the 3D image storage level on a disk with a reduction ratio between 78% and 96.65%.


2015 ◽  
Vol 1 (1) ◽  
Author(s):  
Giorgio Verdiani

AbstractThe churches of St. Eustache, the Meryemana and St. Daniel are located in the Göreme area in Kapadokya, Turkey. Each of the three structures is composed of a main church with a refuge system. Nowadays these churches have limited access: they cannot be visited by a common tourist. Thus, they are a meaningful sample of rupestrian architecture, containing important mural paintings and suggestive spaces. Using digital survey techniques, 3D modelling and 3D printing to produce physical copies from the originals, this research project tries to find articulate and well working solutions to bring these architectural structures to the public.


2016 ◽  
Vol 12 (5) ◽  
pp. 241 ◽  
Author(s):  
Melike Erdogan

<p class="a"><span lang="EN-US">Slow city movement has been firstly emerged in Italy with the purpose of eliminating the homogenous structure that the globalization has created in the cities. Slow city has been turned into an international network due to a philosophy providing sustainability of the city by improving the quality of individuals’ life. Turkey is also among the states which are the members of International Cittaslow Union. 11 districts have participated slow city movement starting with Seferihisar in Turkey. One of these districts is Gokceada constituting the case study. Gokceada has assumed the title of slow city by carrying out the criteria required for slow city in 2011. The aim of this study is to determine how the people’s perceptions and what their expectations towards citta slow phenomenon are. It is aimed to clarify the advantages and disadvantages of being a citta slow according to the public. The study has been conducted in the center of Gokceada through interview method. As a result of the research, it has been reached a conclusion that the people have knowledge about the Cittaslow concept. In addition, they have also assessed Gokceada being a citta slow as a positive development in terms of advantages provided. </span></p>


Author(s):  
I. Boukerch ◽  
B. Takarli ◽  
R. Mahmoudi ◽  
S. Tellai ◽  
D. Chadli

Studies on the architectural heritage can now be supported by three-dimensional reconstruction of actual buildings. The 3D digital model can be an effective medium for documenting the current state of historic buildings but also to create a resource for researchers who conduct their analysis on historical evolution. Architectural photogrammetry has its own specifications in relation to other photogrammetric applications, however it meets these expectations. <br><br> The traditional approach requires the use of metric cameras but with the development of computational techniques, this requirement is overcome and opens the way for the use of non-metric camera. <br><br> The use of the shots that is no longer restricted to the parallel configuration of bundles, the images may be convergent, horizontal or oblique. Combining and modelling several cameras increasingly powerful in resolution and stability, has great scope and the same workflow can be used in varied applications. <br><br> ISPRS and ICOMOS created CIPA because they both believe that a monument can be restored and protected only when it has been fully measured and documented and when its development has been documented several times, i.e. monitored, also with respect to its environment, and stored in proper heritage information and management systems. <br><br> In this paper the 3D modelling of an important cultural site using terrestrial photogrammetric techniques for architectural preservation is presented. The site is the mosque of Abdullah Ibn Salam, Built in 1880 at the initiative of Simon Kanoui, also known as the Great Synagogue of Oran was inaugurated in 1918 only. It was one of the largest and most beautiful synagogues in North Africa. It was built with stone imported from Jerusalem. This place of worship became in 1975 the mosque of Abdullah Ibn Salam who was a rich Jew of Medina who was converted to Islam. <br><br> The structure is modelled using 321 oriented photos taken in five series of shots that cover all the façade and the interior of the building where more than 9200 points are created. <br><br> Also some orthophotos of the important elements are produced and used as materials in the final stage which is the edition in a 3D modelling software. And a video virtual tour is generated using this software.


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