Search results for "Digital"
showing 10 items of 3267 documents
Digital image analysis technique for measuring railway track defects and ballast gradation
2018
Abstract In order to guarantee safety and driving comfort and to maintain an efficient railway infrastructure, the first step is to carefully monitor the track geometry and wear level of the materials constituting the superstructure. To that end diagnostic trains are widely used on main lines, in that they can detect several geometric track parameters and rail wear, but under no circumstances they can yet detect ballast gradation. Due to the practical implications for the planning of maintenance operations on the railway network, this article presents a “DIP” digital image processing technique for measuring the transverse profile and corrugations of the rails as well as ballast gradation. T…
Mechanical Characterization of a Basalt Fabric for TRM Composites: Role of the Test Variables
2021
Textile reinforced mortar (TRM) materials are currently receiving great attention for the strengthening of reinforced concrete and masonry structural elements. Mortars with different strength classes have been coupled with different kind of synthetic fabrics, such as carbon, glass, steel, PBO. Recently natural fibres and, in particular, basalt fibres are receiving increasing interest since they proved to be a promising alternative to the most common synthetic fabrics, thanks to the reduced production costs and the consequent benefits in terms of environmental impact. This paper presents an experimental investigation comprising forty-one monotonic tensile tests on textile strips made with a …
A New Framework for the Extraction of Contour Lines in Scanned Topographic Maps
2010
3D simulations requested in various applications had led to the development of fast and accurate terrain topography measurement techniques. In this paper, we are presenting a novel framework dedicated to the semiautomatic processing of scanned maps, extracting the contour lines vectors and building a digital elevation model on their basis, fulfilled by a number of stages discussed in detail throughout the work. Despite the good results obtained on a large amount of scanned maps, a completely automatic map processing technique is unrealistic and remains an open problem.
The pricing capability lifecycle of digital innovations
2021
The pricing capability provides a basis for firms’ competitive advantage. However, to date, the literature has not investigated how this capability forms, develops, and matures. In this study, we define the pricing capability as a dynamic capability consisting of three operational building blocks (tools and data, human and relational resources, and processes, routines, and mechanisms) as well as two dynamic capability building blocks (alertness and responsiveness, and value-based strategic thinking). Furthermore, we propose the pricing capability lifecycle of digital innovations that incorporates insights of the dynamic capabilities view (DCV). Based on a longitudinal multi-case study of fi…
Image Processing Chain For Digital Still Cameras Based On The Simpil Architecture
2005
The new generation of wireless devices herald the development of products for integrated portable image and video communication requiring to image and video applications high computing performance. Portable MultiMedia Supercomputers (PMMS), a new class of architectures, allow to combine high computational performance, needed by multimedia applications, and a big energy efficiency, needed by portable devices. Among PMMS, the SIMPil (SIMD processor pixel) architecture satisfies the above requirements, especially with video and digital images processing tasks. In this paper we, exploit the SIMPil computation and throughput efficiency to implement the whole image processing chain of a digital s…
Discurso político y democracia de audiencias: los desafíos discursivos de la digitalización
2020
Digital Resilience to Normal Accidents in High-Reliability Organizations
2021
Digital technologies play a dual role on organizational resilience. On one side, digital systems introduce new technological risks. On the other side, digital systems increase the performances in response to hazardous accidents. Normal Accident Theory (NAT) and High-Reliability Organization (HRO) provide useful ground to explain the dynamics of digital resilience. However, the two theories have been either used as alternatives or with one theory dominating the other. We posit that to fully understand digital resilience we need to integrate NAT and HRO concepts instead of using them in isolation. We conduct a bibliometric analysis to identify major themes and application domains characterizi…
Las bibliotecas y Ovidio: una herramienta para difundir un patrimonio digital contextualizado
2022
El objeto de esta comunicación es presentar el blog "Las bibliotecas y Ovidio: un blog sobre bibliotecas, sobre libros y sobre Ovidio" que constituye una ocasión de contextualizar los ejemplares que se van colocando poco a poco en las estanterías virtuales de la BIBLIOTECA DIGITAL OVIDIANA (BDO), abordándolos de una manera diferente, ya no como los individuos "atomizados" que se estudian a través de la ficha diseccionados, sino como parte integrante de una biblioteca por la que se realiza una suerte de visita virtual aprovechando la presencia de los ovidios ilustrados. Una invitación para conocer de manera conjunta los ejemplares estudiados y sus "hogares", las casi cien bibliotecas visitad…
Informācija un sabiedrība: Informācijas un bibliotēku studiju nodaļas raksti : Nr.2
2011
Turpinājumizdevuma „Informācija un sabiedrība: Informācijas un bibliotēku studiju nodaļas raksti” otrajam numuram ir divas daļas. Pirmajā daļā „Nacionālā identitāte digitālā vidē” ir iekļauti raksti, kuros analizēti valsts pētījumu programmas „Nacionālā identitāte (valoda, Latvijas vēsture, kultūra un cilvēkdrošība)” projektā „Nacionālā identitāte un komunikācija” apakšprojektā „Nacionālā identitāte digitālā vidē” veikto pētījumu rezultāti. Otrajā daļā „Bibliotēku darba aspekti” ir raksti, kuru autori ir Latvijas Universitātes bibliotēkas darbinieki. Rakstos analizēti pētījumu rezultāti vairākās ar bibliotēkas darbu saistītās jomās: 1) bibliotēkas pakalpojumi, to transformācija ‘Tīmekļa 2.0…
Digitālo mediju ietekme uz lēmumu pieņemšanu un demokrātiju
2018
Mūsdienās tādu tehnoloģiju progress kā mākslīgais intelekts apvienojumā ar Lielo Datu analīzi ir devis iespēju ievākt, uzturēt un analizēt milzīgus datu apjomus. Progress digitālajā jomā ietekmē ne tikai tirgus ekonomiku, bet arī politisko līdzdalību. Digitālie mediji spēj apvienot līdzīgi domājošos, iedrošināt sociālas aktivitātes, mazināt plaisas starp sabiedrības grupām, kā arī paaugstināt politisko līdzdalību valstī un veicināt izglītību, tomēr ir pastiprinātas bažas par to, ka digitālo mediju platformas var tikt izmantotas, lai izplatītu propagandas vēstījumus, kas is spējīga piesaistīt lielu auditoriju. Automātiskajiem filtrēšanas mehānismiem var piemist diskriminējošs raksturs, ietek…