Search results for "Computer Science Applications"
showing 10 items of 3993 documents
A mathematical model of the self-averaging Pitot tube
2005
Abstract Flowmeters with self-averaging Pitot tubes are more and more often applied in practice. Their advantages are practically no additional flow losses, usability in the case of high temperature of fluids and simplicity of fitting. A mathematical model of a self-averaging Pitot tube including the influence of the probe shape, selected constructional features and flow conditions on the quantity of differential pressure gained has been given in this paper. The values and ranges of variations of the coefficients established for the model have been assessed on the basis of the numerically computed velocity and pressure fields around and inside the probe. Velocity and pressure fields were ca…
A cultural comparison study of smartphone adoption in Uzbekistan, South Korea and Turkey
2017
Smartphone popularity is increasing due to the technological advances that mean manufacturers can make more sophisticated devices, and telecommunication companies can provide better connections. Gartner reported that 403 million smartphones were sold in the fourth quarter of 2015, a 9.7% increase over the same period in 2014. It is a common perception that users tend to utilise advanced technology to increase productivity. However, there are studies indicating quite opposite or alternatively slow rates of adoption. To avoid this, companies invest in studying consumer behaviour. The purpose of the study is to examine the effects of drivers and cultural differences on smartphone acceptance in…
Corrigendum to “Off-line control of the postprandial glycemia in type 1 diabetes patients by a fuzzy logic decision support” [Expert Systems with App…
2012
The Political Click: Political Participation through E-Petitions in Germany
2010
Electronic petitions can serve as an influential mechanism for political participation. We present a study on the dynamics in the German e-petition system which was introduced in late 2008. Drawing on a data set of signatures, we analyze four aspects: (a) the types of petitions found, (b) the temporal dynamics of petitions, (c) the types of users found, and (d) the intersection of different petitions' supporter populations. We present evidence that (a) the system is dominated by a very small number of high-volume petitions and (b) these high-volume petitions have a delayed boosting effect on the base activity in the petition system. We furthermore (c) present a typology of users, showing th…
The heterogeneity of services and the differential effects on business and territorial innovation
2011
The innovative results of firms depend upon their specific characteristics and their ability to weave together their competences with the innovative resources in their environment. Different approaches have underlined the importance of location and the context of business innovation. In particular, the existence of knowledge intensive services (KIS) enables firms to create and commercialise new processes, products and services. However, KIS can present substantial differences in their capacity to contribute to innovation. This article examines the relationship between KIS and business innovation and establishes a KIS typology in order to pinpoint its effects on business innovation. The resu…
Customer segmentation based on commitment and ICT use
2009
PurposeThe purpose of this paper is to determine and characterize groups of retail customers, based on their perception of commitment to the retailer and the degree of use of its technological equipment.Design/methodology/approachA CHAID algorithm is performed and differences between the resulting segments are tested through the analysis of variance.FindingsFour segments are obtained that differ significantly in commitment to the retailer and level of use of the store's information and communication technology (ICT) facilities, as well as in other variables related to the retailer‐consumer relationship. In particular, customer segments differ in their use of retailers' payment facilities.Pr…
The role of utility models in patent filing strategies: evidence from European countries
2018
We examine the role of utility models (UM) in patent filing strategies. With an extensive patent family data from European countries, we explore the structures and characteristics of patent families, which include UMs. A simple typology of patent families with UM members is introduced. We document that the geographical scope of most patent families with UM members is purely national, which is in line with the conventional view that the UM mechanism covers technologically and economically marginal inventions. However, the image of a UM as a signal of a minor invention is an oversimplification. Applicants exhibit a mixture of uses for the UM and there exists a subset of UM filings linked to i…
A DGS gesture dictionary for modelling on mobile devices
2017
ABSTRACTInteractive or Dynamic Geometry System (DGS) is a tool that help to teach and learn geometry using a computer-based interactive environment. Traditionally, the interaction with DGS is based on keyboard and mouse events where the functionalities are accessed using a menu of icons. Nevertheless, recent findings suggest that such a traditional model of interaction has a steep learning curve and is inadequate to develop DGS for devices with multi-touch screens. Thus, we propose a new interaction model for DGS based on a gesture dictionary which enables the construction and manipulation of geometric objects without the need of accessing a menu of icons. The dictionary is divided into thr…
Pervasive access to MRI bias artifact suppression service on a grid.
2009
Bias artifact corrupts magnetic resonance images in such a way that the image is afflicted by illumination variations. Some of the authors proposed the Exponential Entropy Driven - Homomorphic Unsharp Masking (E2D-HUM) algorithm that corrects this artifact without any a priori hypothesis about the tissues or the Magnetic Resonance image modality. Moreover, E2D-HUM does not care about the body part under examination and does not require any particular training task. People who want to use this algorithm, which is Matlab-based, have to set their own computers in order to execute it. Furthermore, they have to be Matlab-skilled to exploit all the features of the algorithm. In our work we propos…
Interacting with Augmented Environments
2010
Pervasive systems augment environments by integrating information processing into everyday objects and activities. They consist of two parts: a visible part populated by animate (visitors, operators) or inanimate (AI) entities interacting with the environment through digital devices, and an invisible part composed of software objects performing specific tasks in an underlying framework. This paper shows an ongoing work from the University of Palermo''s Department of Computer Science and Engineering that addresses two issues related to simplifying and broadening augmented environment access.