bluuebunny/crossref_metadata_2025_split huggingface dataset:
Geomatic multiscale approach for the conservation of archeological sites: the case of Alba Fucens (L’Aquila-Italy)
Authors: Alicandro M. , Dominici D. , Quaresima R. , Zollini S. , De Luca D. , Pietrangeli S. 
Published: November 2020

Abstract
The archaeological site of Alba Fucens (L’Aquila, Italy) (303 BC) is the largest archaeological area of the whole Apennines. Extension, location and environmental context of the site require new methods for risk mitigation and conservation. In this paper, a multiscale geomatic approach, based on remote sensing and UAV photogrammetry, is reported. The main purpose is the extraction of architectonic and weathering information, useful for a better fruition and conservation. For a multiscale approach, very high resolution satellite images (WorldView2) and UAV Photogrammetry technique have been used. The satellite image processing, performed by Normalized Difference Vegetation Index (NDVI), High-pass filter, Principal Component Analysis (PCA) and classification, allowed to detect buried or emerging structures and to estimate fire and erosion risks.
On the other hand, UAV photogrammetry technique allowed to evaluate detailed architectural information of the buried (ima, media and summa caveae) and excavated amphitheatre structures (arena, podium and steps). Furthermore it was also possible to systematically acquire complete and reproducible data on stone materials (limestones) and their weathering (loss of stone material, natural or anthropogenic break out, deposits, efflorescences, dark or light crusts, biological colonization, granular and crumbly disintegration, flaking and fissures).
With a multiscale and metric approach, the geomatic techniques allow to deeply investigate the monument-mapping and to create a detailed 3D models. In this way, the stone decay, the risks and their mechanisms can be evaluated, in order to plan and perform future actions and interventions for their mitigation.
A low-cost ChArUco-based 3D scanner for cultural heritage
Authors: Puggelli Luca , Furferi Rocco , Volpe Yary , Governi Lapo 
Published: November 2020

Abstract
In the region of the cultural patrimony, operators use high-resolution orthophotos of paintings for the restoration, monitoring and electronic recording and exhibition purposes. Unfortunately, artworks that are to be restored and/or shown in digital museums are painted on canvas that are far from perfectly planar. Professional documents surrounding an artwork to be preserved in digital collections or museums can therefore be enhanced with information relating to the paintings’ 3D structure. This paper proposes both the design of a portable low-cost device that enables the acquisition of 3D geometry of painting and the procedure for triangulation of 3D data. This process uses a set of fiducial markers to set and continuously control the mutual orientation of the laser source and the camera and works accordingly to the principle of laser-camera triangulation.
How can augmented reality improve the user experience of digital products and engagement with cultural heritage outside the museum space?
Authors: García Münzer M 
Published: November 2020

Abstract
The purpose of this study is to understand how augmented reality is improving the user experience of cultural heritage and museums by making it more engaging and allowing the user to better remember the information relayed. Specifically, this study aims to better understand the use of augmented reality, and how institutions are making use of it by interviewing people involved in two apps that operate outside the museum space. This study can conclude that augmented reality has improved the information delivered and some aspects of the user experience. However, it is difficult to argue that augmented reality is completely improving the user experience of cultural heritage and museums.
Proposal for the enhancement of Marzamemi’s underwater heritage through the use of digital methodologies
Authors: Prados-Peña M B , Sáez-Pérez M P , García-López A 
Published: November 2020

AbstractThis article discusses the importance of technology in the enhancement of underwater heritage, using the Wreck of the Church in the coastal area of Marzamemi (Italy) as a case study. This heritage site is under study in the framework of the European research and knowledge transfer project, WARMEST. There is an increasing variety of digital tools that promise to improve people’s experience with heritage sites, to enhance the value of heritage and contribute to the socio-economic development of the territories. A strategy is proposed for Marzamemi underwater heritage site, where communication efforts give potential visitors a sense of the destination that motivates them to choose it and encourage them to talk widely about their experience. To this end, digital tools are a great asset in establishing such a communication strategy to increase information about this heritage on the various websites and social networks related to Marzameni, so that knowledge of Marzameni’s underwater heritage would undoubtedly be enhanced.
Digital survey from drone in archaeology: potentiality, limits, territorial archaeological context and variables
Authors: Pecci Antonio 
Published: November 2020

Abstract
The ease of piloting drones, the increasingly high performance of sensors, range of action and autonomy of the platform in flight, combined with an apparent simplicity of realization of 3D models through modern photogrammetry (based on algorithms of Structure from Motion and techniques of Computer Vision), have created a real boom for use in archeology. The trust placed in these new technologies has not always allowed a careful analysis of the limits of these tools and methodologies. In fact, these technologies are often used badly or not to their full potential, probably due to the absence of a general manual and because they are technologies in constant development. The aim of this paper is the discuss of potentials and limits of the use of drones in the documentation of archaeological sites, which are high dependent by the territorial archaeological context and several variables that will be argued.
The versatility of augmented reality for the enhancement of cultural heritage.
Authors: Gitto Stefania , Geri Francesco 
Published: November 2020

Abstract
All Virtual reality, augmented reality, mixed reality or straight-up video games can now be found in growing numbers within spaces dedicated to culture and the arts. The choice of such tools is trans-forming the traditional museum tour into a multifaceted and interactive experience to the point, in some cases, of flirting with entertainment. From our experience, the role of augmented reality hasn’t been to substitute itself to the « real » tour. On the contrary, AR invites the user to immerse themselves in an animated personal experience enriched with supplementary information. Elaborated with goals and features different from those of virtual reality, AR aims at strengthening direct contact with works of art as much as possible, inciting an active « live » use and a presence “on-site” more than “on-line”. The diversity of three logistical contexts in which we have worked — a large-scale monument, a historical palace and its heterogenous art collection, and finally an archeological complex encompassing a traditional museum and the remains of a Roman amphitheatre — has brought us to reflect upon the functional aspects that come to determine a personalized digital product, as tailored as possible to specific needs. Each of the three apps has permitted a deepening of each of their features in order to meet specific goals targeted by various museum institutions. In this paper we describe these features in more specific terms.
Geomatics for studying historic supply systems: the Grotta degli Animali case study
Authors: Tucci G , Bonora V , Conti A , Fiorini L 
Published: November 2020

Abstract
In the past, it was difficult to exhaustively document gardens and artificial grottoes with traditional manual survey techniques and maybe also for this reason the restoration Charters used to pass over the need of an accurate survey. Currently, high resolution sampling allows to obtain 3-D data acquisition and realistic and metrically accurate representations. However, the quality of a digital model is not validated by automatic measures or likelihood but following rigorous acquisition and processing workflows, which must be described in metadata and paradata. The new survey reveals some aspects of the historic water supply system for a better understanding of the construction of this monument and will be extended to the narrow tunnels included in the retaining wall around the grotto.
The influence of loading, temperature and relative humidity on adhesives for canvas lining
Authors: Poulis J A , Seymour K , Mosleh Y 
Published: November 2020

AbstractThe structural conservation of canvas paintings may require lining, a process in which a secondary canvas is adhered to the reverse of the damaged original canvas to provide additional support. Choosing the optimum adhesive or canvas for lining is challenging. Comprehensive data on thermal and mechanical behaviour of different adhesives to enable the conservator to make informed choices for their treatment purposes is scarce. Hence, in this study, four prevalently used adhesives for lining are chosen and their thermal and mechanical behaviour, such as the glass transition and melting temperatures, static lap shear strength and creep resistance, are compared. Thermal properties of the different adhesives are characterised using differential scanning calorimetry (DSC). Furthermore, the effect of temperature cycles (25, 35, and 45°C at a fixed relative humidity of 48%) on the creep behaviour of lined canvases is evaluated. Lap shear and creep experiments are performed on lined canvas mock-ups. The four adhesives tested are: studio formulations of an animal glue-wheat flour paste, as well as a beeswax-damar resin mixture; a patented formula based on an ethylene vinyl acetate copolymer mixture (BEVA 371 O.F.™); and a mixture of two industrially produced acrylic copolymers (Plextol™ D541 and K360). The results demonstrate the remarkable effect of temperature on the creep behaviour of lined canvases, which can be related to their thermal stability.
Preliminary results on surface treatments on wood
Authors: de Ferri L , Strojecki M , Bertolin C 
Published: November 2020

Abstract
One of the main issues of the international research project SyMBoL - Sustainable Management of Heritage Buildings in a Long-term perspective, is the evaluation of wood mechanical properties. Particularly, pine wood is tested being the main building materials of medieval Norwegian stave churches. Experiments are aimed to assess variations in mechanical properties as a function of environmental conditions. Being wood highly sensitive to RH% changes, pine slices were maintained at 80% RH (4 weeks, 20°C) and successively treated with the materials here discussed on the two main surfaces; afterward, they were left at 30% RH for three weeks. Thus, the loss of water from the samples is supposed to occur only through the lateral surfaces since the chosen sealing materials were selected on the basis of their capability to avoid any penetration of water into the samples. This work represents, indeed, the study carried out to select materials to be applied on the wooden surfaces. Paraloid B72, also coupled with a cellulose sand seal spray, a microcrystalline wax and an epoxy resin were tested. Obtained surfaces were evaluated in term of water repellency (contact angle measurements), uniformity of the surface; penetration of the materials into the wooden structures, colour and water vapor sorption.
European Standards for Archaeological Wood - theoretical background, purpose, and application.
Authors: Fioravanti M. , Spriggs J. , Björdal C. , Gregory D. , Pournou A. , Peacock E.A. , Straetkvern K. , Gelbrich J. , Khoï Tran Q. 
Published: November 2020

Abstract
The successful management of archaeological wood finds from waterlogged sites starts in the planning phase of any excavation. From the moment of exposure, waterlogged wood finds are extremely vulnerable to a range of man-made and natural threats. There is a real risk of losing the artefact if it is not handled and conserved properly. This paper describes the process leading to the creation of CEN TC346 Standards for waterlogged wood, and how they will be applied within archaeological excavations and conservation. These, it is confidently expected, will provide European archaeologists, conservators and archaeological curators clear guidelines and decision-making tools for effectively managing finds of wood from waterlogged sites.
Cyber Physical Manufacturing Metrology
Authors: Majstorovic V D , Stojadinovic S 
Published: November 2020

Abstract
The Cyber Physical Manufacturing Metrology (CP2M) is based on integration of the Cyber Physical Manufacturing (CPM) and connection between Internet of Things (IoT) and Cloud technology (CT). These are high-level methodologies for development of new generation manufacturing metrology systems, which are more intelligent, flexible and self-adaptable. CP2M generates Big Data, horizontally by integration (network of machines/CMMs, processes and sensors) and vertically by control (usually defined over five levels) which should be analytically processed and managed by the CP2M. In this paper was given, a detailed analysis of the current framework of development the CP2M. A brief overview of the concept CP2M research, particularly in Serbia is given as well.
Methodology for improving production flows on an assembly line
Authors: Nitu E L , Gavriluta A C , Belu N , Gavriluta C A 
Published: November 2020

Abstract
Globalization of production and strong competition in the economic environment requires manufacturers from automotive industry to offer their customers a wide range of products, of the best quality and at lower prices. In order to achieve a competitive advantage, the automotive industry must to adapt their production systems to mass customisation, so that they can provide the variety demanded by the customers while limiting their costs and maintaining their profitability. In this context, research to increase the performance of assembly lines is increasingly numerous and use different techniques, as: layout design, mathematic modeling, dynamic simulation, Lean manufacturing etc. This paper presents a methodology for improving production flows on an assembly line, which was developed to provide the designer and manager of assembly lines in the automotive industry with a set of logically related steps and steps that would allow to achieve a high-performance assembly line. The stages and steps of this methodology consist in the use of methods from different fields, such as: layout design, modelling-simulation of production flows, labour study, lean manufacturing, and for their application different techniques and tools are used.
Tool‘s profiling for rotational volumetric deformation-analytical study
Authors: Costin G A , Baroiu N , Teodor V G , Paunoiu V , Oancea N 
Published: November 2020

Abstract
The paper develops in an analytical form an algorithm for the profiling of the active elements of the upper half-die forming which generates by means of plastic rotary volumetric deformation of the frontal teeth. The half die has the revolving axis inclined with respect to the axis of the deformed blank, which rotates around its own axis of symmetry. In the generation process, the generating half die also performs a movement of the blank. The constitutive surfaces of the tooth flanks to be generated are complex surfaces, formed of circular arcs with variable radius and disposed on a conical base surface, on the same axis with the half-die axis. Such teeth are used for front blades in the textile industry or drilling machines which performs, besides the rotational movement of the tool and an alternate rectilinear motion thereof, creating a percussion effect on the work piece. The surfaces of the upper half and the half die teeth may be regarded as reciprocal wrapping surfaces, so that the entire generation process is based on the analytical principles of surface winding. Starting from the constructive shape of the frontal tooth plate, in a classical scheme of the structure of the oscillating motion mechanism of the upper half matrix, the shape of the deformation teeth is determined based on a specific algorithm, based on the general theory of surface winding, and dedicated software products for it.
New developed software for processing and analysing of the cutting forces records verified when machining by modern circle-segment end mills
Authors: Polzer A , Vancura T , Trcka T 
Published: November 2020

Abstract
At present, 5-axis machining is often realized with ball end mills that do not achieve the advantages of the modern circle-segment end mills. In recent studies, these tools have been compared concerning the quality of the machined surfaces, machining times and cutting forces. An essential part of the research was an analysis of the force loading of the used tools. To get accurate data about force acting during the machining process, it was necessary to undergo experimental measuring using a cutting force dynamometer. For a force records analysis, the new software was developed based on the MATLAB platform. Evaluated results obtained by the new software are presented in the paper and compared with recent studies.
Influence of vertical step on forces and dimensional accuracy of SPIF parts – a numerical investigation
Authors: Popp M O , Rusu G P , Oleksik V , Biris C 
Published: November 2020

Abstract
Single point incremental forming (SPIF) is a new flexible sheet metal forming process characterized by low costs and the possibility to produce prototype parts without the need for a specific die. This is one of the reasons why this process is nowadays used for manufacturing of highly customized small series parts. The process involves the usage of a hemispherical punch which gradually deforms the sheet metal blank fixed by two simple clamping rings, by following a path until the final shape of the product is obtained. The aim of this paper is to investigate and analyze the influence of the vertical step over forces involved in the process and obtained geometrical accuracy, which is one of the main drawbacks for large scale implementation of the process. A numerical analysis was carried out through finite element method with different step size for frustrum pyramid shaped parts made from the same material. In this way, the most appropriate vertical step can be chosen for further experimental research in order to obtain the most accurate parts and with as little stress as possible on the equipment involved in the process.
Analysis of the influence of the hydrostatic ball burnishing pressure in the surface hardness and roughness of medium carbon steels
Authors: Fernández-Lucio P , González-Barrio H , Gómez-Escudero G , Pereira O , López de Lacalle L N , Rodríguez A 
Published: November 2020

Abstract
Standing sectors in the industry such as railroad or plastic injection moulds presents many challenges for manufacturing complex components in terms of finishing requirements and mechanical properties. Because of that, hydrostatic ball burnishing is considered an optimal solution since it reduces surface roughness and generates hardened surfaces and compressive residual stresses, increasing the performance and lifespan of this parts in terms of resistance and mechanical fatigue. Additionally, this technology could be integrated directly into the machining centres, what reduces times and dimensional errors arising from mooring changes. Therefore, lead times and production costs can be drastically reduced in comparison with other finishing techniques. The aim of this project is to analyse the use of the ball burnishing process to improve the final quality of medium carbon steel surfaces, minimizing surface roughness and improving hardness. In order to achieve significant results, different working pressures are analysed in terms of surface roughness and hardness in AISI 1045 and AISI P20 steels. The results showed a reduction in roughness parameters of more than 89% for both materials using a pressure of 10 MPa. Moreover, at a pressure of 30 MPa, the surface hardness has been increased by 15% and 34% respectively.
An accurate machine learning calculator for the lithium-graphite system
Authors: Babar Mohammad , Parks Holden L , Houchins Gregory , Viswanathan Venkatasubramanian 
Published: November 2020

Abstract
Machine-learning potentials are accelerating the development of energy materials, especially in identifying phase diagrams and other thermodynamic properties. In this work, we present a neural network potential based on atom-centered symmetry function descriptors to model the energetics of lithium intercalation into graphite. The potential was trained on a dataset of over 9000 diverse lithium–graphite configurations that varied in applied stress and strain, lithium concentration, lithium–carbon and lithium–lithium bond distances, and stacking order to ensure wide sampling of the potential atomic configurations during intercalation. We calculated the energies of these structures using density functional theory (DFT) through the Bayesian error estimation functional with van der Waals correlation exchange-correlation functional, which can accurately describe the van der Waals interactions that are crucial to determining the thermodynamics of this phase space. Bayesian optimization, as implemented in Dragonfly, was used to select optimal set of symmetry function parameters, ultimately resulting in a potential with a prediction error of 8.24 meV atom−1 on unseen test data. The potential can predict energies, structural properties, and elastic constants at an accuracy comparable to other DFT exchange-correlation functionals at a fraction of the computational cost. The accuracy of the potential is also comparable to similar machine-learned potentials describing other systems. We calculate the open circuit voltage with the calculator and find good agreement with experiment, especially in the regime x ≥ 0.3, for x in Li
x
C6. This study further illustrates the power of machine learning potentials, which promises to revolutionize design and optimization of battery materials.
Depression, Anxiety, and Self-Directed Violence in Women With Endometriosis: A Retrospective Matched-Cohort Study
Authors: Estes Stephanie J , Huisingh Carrie E , Chiuve Stephanie E , Petruski-Ivleva Natalia , Missmer Stacey A 
Published: November 2020

Abstract
The purpose of this study was to compare the incidence of mental health outcomes in women in the United States with and without documented endometriosis. In a retrospective matched-cohort study using administrative health claims data from Optum’s Clinformatics DataMart from May 1, 2000, through March 31, 2019, women aged 18–50 years with endometriosis (n = 72,677), identified by International Classification of Disease diagnosis codes (revisions 9 or 10), were matched 1:2 on age and calendar time to women without endometriosis (n = 147,251), with a median follow-up of 529 days (interquartile range, 195, 1,164). The rate per 1,000 person-years of anxiety, depression, and self-directed violence among women with endometriosis was 57.1, 47.7, and 0.9, respectively. Comparing women with endometriosis to those without, the adjusted hazard ratios and 95% confidence intervals were 1.38 (1.34, 1.42) for anxiety, 1.48 (1.44, 1.53) for depression, and 2.03 (1.60, 2.58) for self-directed violence. The association with depression was stronger among women younger than 35 years (P for heterogeneity &lt; 0.01). Risk factors for incident depression, anxiety, and self-directed violence among women with endometriosis included endometriosis-related pain symptoms and prevalence of other chronic conditions associated with pain. The identification of risk factors for mental health conditions among women with endometriosis may improve patient-centered disease management.