Search results for "Restoration"

A Knowledge Based Model for Digital Restoration and Enhancement of Images Concerning Archaeological and Monumental Heritage of Mediterranean Coast

2006

A Set of Low-Level Descriptors for Images Affected by Foxing

2008

Old printed photos are affected by several typical damages, due to age and bad preservation. “Foxing” defects look like red-brownish spots onto the paper of the printed photo. Similar features can be seen in the digitized copies. In this paper we propose a set of low level descriptors to extract features from digitized photos affected by foxing. An image retrieval application, based on information extracted by the proposed descriptors, is developed to discriminate, through comparison, if an image is affected by foxing. Results are compared to those obtained using some standard color descriptors.

Multi-Directional Detection of Scratches in Digitized Images

2009

Publication in the conference proceedings of EUSIPCO, Glasgow, Scotland, 2009

Immediate and flapless implant insertion and provisionalization using autogenous bone grafts in the esthetic zone: 5-year results.

2017

Objectives As the 2-year results for immediately inserted and provisionalized implants have been reported, it remained an open issue, whether the initially high success rates and the esthetic outcome remain stable for longer observation periods. Therefore, this prospective study examines the 5-year hard and soft tissue changes at implants placed in the anterior maxilla. Material and methods Meanwhile, 37 microthreaded implants were placed in 21 patients into extraction sockets with and without facial bone deficiencies by a flapless approach. Facial gaps and bony defects were grafted with autogenous bone chips. The implants were immediately provisionalized. The primary outcome parameters wer…

Volumetric variation of peri-implant soft tissues in convergent collar implants and crowns using the biologically oriented preparation technique (BOP…

2018

Background To evaluate the changes in the peri-implant soft tissues of convergent collar implants with biologically oriented preparation technique (BOPT) crowns, 10 months after loading. Material and Methods A pilot study was carried out from January 2016 to October 2017 involving 14 patients with one or two implants in the posterior mandibular sector. A total of 32 convergent collar implants were placed using a non-submerged protocol. Three months later the provisional cemented crowns were fitted using the BOPT approach with the finish line 1-1.5 mm below the gingival margin, simulating coronal emergence of a natural tooth. The soft tissue changes were measured with an intraoral scanner at…

Efficacia del sistema sperimentale combinato di indagini radar e all’infrarosso termico. Esiti della sua applicazione nella chiesa di Santa Maria dei…

2010

Il contributo vuole mostrare l'esecuzione delle indagini diagnostiche attraverso la sperimentazione di un metodo combinato di indagini radar e termografie all'infrarosso termico. I risultati dell'applicazione sperimentale del metodo sono introdotti e commentati, ponendo in risalto la loro efficacia. The contribution shows the execution of diagnostic tests through an experimental combined method of investigation through radar prospections and infrared thermography. The results of the experimental applications are introduced and commented.

Understanding innovation in creative industries: knowledge bases and innovation performance in art restoration organisations

2018

[EN] This paper studies innovation in the creative industry of art restoration, which is characterised by an intensive use of symbolic knowledge. Using the resource-based view of the firm as a theoretical framework, this study adapts Community Innovation Survey (CIS) methodology to this industry, creating and exploiting a unique dataset from the restoration departments of museums in 43 countries on 5 continents. The results suggest that the type and composition of the knowledge bases in play influence a department¿s absorptive capacity to access external information sources and thereby impact innovative outcomes. The article contributes to innovation literature by capturing innovation proce…

Sequestering ability of some chelating agents towards methylmercury(II).

2013

A study on the interactions between CH3Hg+ and some S, N and O donor ligands (2-mercaptopropanoic acid (thiolactic acid (H2 TLA)), 3-mercaptopropanoic acid (H2 MPA), 2-mercaptosuccinic acid (thiomalic acid (H3 TMA)), d,l-penicillamine (H2 PSH), l-cysteine (H2 CYS), glutathione (H3 GSH), N,N′-bis(3-aminopropyl)-1-4-diaminobutane (spermine (SPER)), 1,2,3,4,5,6-benzenehexacarboxylic acid (mellitic acid (H6 MLT)) and ethylenediaminetetraacetic acid (H4 EDTA)) is reported. The speciation models in aqueous solution and the possible structures of the complexes formed are discussed on the basis of potentiometric, calorimetric, UV spectrophotometric and electrospray mass spectrometric results. For t…

Implant insertion torque value in immediate loading : a retrospective study

2019

Background The aim of this study is to verify if the Insertion Torque Value (ITV) of 32 Ncm for immediate loading protocol (ILP), as indicated by literature, is still, with the advance in implant research, a real significant cut-off for long-term implant survival. Material and Methods In this retrospective study, data from 224 patients that during three years of clinical practice, were submitted to the insertion of 322 implants with immediate loading protocol, have been recorded, pooled and analyzed. Data were organized based on Insertion Torque Value (ITV): > 32 Ncm (CG) and 32 Ncm are still characterized by a lower crestal bone resorption, there are no statistically significant difference…

Piano col colore… !

2012

Il capitolo del volume Città, Intonaci, Colore, tratta il tema dei Piani del Colore in Italia. La trattazione presenta le riflessioni che si sviluppano in Italia sin dagli anni Settanta del XX secolo e che condurranno all'elaborazione dei cosidetti "piani del colore". Il saggio esamina i contenuti dei piani di molte città italiane e mostra gli esiti degli interventi sulle facciate delle architetture nei centri storici. The chapter of the book deals with the subject of the Color Plans diffused in Italy. The discussion presents the reflections that develop in Italy since the seventies of the twentieth century and that will lead to the processing of so-called "Color plans". The essay examines …