Approaches to Semantic Web Services: An Overview and Comparison

Abstract. The next Web generation promises to deliver Semantic Web Services (SWS); services that are self-described and amenable to automated discovery, composition and invocation. A prerequisite to this, however, is the emergence and evolution of the Semantic Web, which provides the infrastructure for the semantic interoperability of Web Services. Web Services will be augmented with rich formal descriptions of their capabilities, such that they can be utilized by applications or other services without human assistance or highly constrained agreements on interfaces or protocols. Thus, Semantic Web Services have the potential to change the way knowledge and business services are consumed and provided on the Web. In this paper, we survey the state of the art of current enabling technologies for Semantic Web Services. In addition, we characterize the infrastructure of Semantic Web Services along three orthogonal dimensions: activities, architecture and service ontology. Further, we examine and contrast three current approaches to SWS according to the proposed dimensions

A Simple Numerical Tool for Dynamic Soil-Structure Interaction Analyses Including Non-Linear Behaviour of Both Structure and Foundation

In this paper a simple model to take into account dynamic non-linear soil-structure interaction is presented: it consists of a 1 degree-of-freedom (dof) superstructure and a 3 dof macro-element foundation. Both the superstructure and the soil-foundation system exhibit a non-linear behaviour. In particular the superstructure is characterized by an elastic perfectly plastic behaviour, while the foundation macro-element encompasses the two sources of non-linearity that arise in the soil-foundation interface: a) the one due to the irreversible elastoplastic soil behaviour (material non-linearity) and b) the one due to possible foundation uplift (geometric non-linearity). The global model thus entails the following features: a) the coupling between the foundation and the superstructure when one or both of them enter into the non-linear range, b) the capability for the foundation and the superstructure to dissipate energy, c) a prediction of peak and residual displacements in both the superstructure and the foundation, d) the possibility to model the isolation effects for the structure due to the foundation non-linear behaviour and e) the possibility for the superstructure to reach a particular level of ductility demand. Therefore, the model can serve as a numerical tool for assessing performance-based design approaches that wish to take into account non-linear soil-structure interaction. This is illustrated through several case studies of bridge piers, in which a comparison between the results obtained by dynamic analyses performed with different base conditions (fixed base, elastic base, elastoplastic base with uplift) emphasizes the role of the non-linear soil-structure interaction in design

Perception of trunk appearance and body self in adolescent idiopathic scoliosis: The significance of brace treatment

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Hopf algebraic structure of the parabosonic and parafermionic algebras and paraparticle generalization of the Jordan Schwinger map

The aim of this paper is to show that there is a Hopf structure of the parabosonic and parafermionic algebras and this Hopf structure can generate the well known Hopf algebraic structure of the Lie algebras, through a realization of Lie algebras using the parabosonic (and parafermionic) extension of the Jordan Schwinger map. The differences between the Hopf algebraic and the graded Hopf superalgebraic structure on the parabosonic algebra are discussed.Comment: 11 pages, LaTex2e fil

The role of the high resolution weather forecast in estimating the run-offusing a simple hydrological model

Recent and repeated episodes of severe weather in Italy have stressed the need to have a suffi ciently accurate forecast to give adequate warning to the involved areas. The impact of the precipitation, however, is also a function of the characteristics of the hydrological basin. From this point of view, a rather startling example is the disaster which hit the Campania region on 5th May, 1998 in which a moderate precipitation (about 100 mm in 24 h) produced a huge landslide which killed or injured several tens of people and produced serious damage to the area. Such localized events require among other things the use of a high resolution weather forecast. In this paper, a forecast of the Campania event using a limited area model at 3 km grid resolution is presented. The forecast rainfall at several grid resolution is used to initialize a simple hydrological model to estimate the run-off. The numerical experiments suggest that high resolution may be a key factor in predicting the run-off

Wavelets in mathematical physics: q-oscillators

We construct representations of a q-oscillator algebra by operators on Fock space on positive matrices. They emerge from a multiresolution scaling construction used in wavelet analysis. The representations of the Cuntz Algebra arising from this multiresolution analysis are contained as a special case in the Fock Space construction.Comment: (03/11/03):18 pages; LaTeX2e, "article" document class with "letterpaper" option An outline was added under the abstract (p.1), paragraphs added to Introduction (p.2), mat'l added to Proofs in Theorems 1 and 6 (pgs.5&17), material added to text for the conclusion (p.17), one add'l reference added [12]. (04/22/03):"number 1" replace with "term C" (p.9), single sentences reformed into a one paragraph (p.13), QED symbol moved up one paragraph and last paragraph labeled as "Concluding Remarks.

The Detector Control Systems for the CMS Resistive Plate Chamber

The Resistive Plate Chamber system is composed by 912 double-gap chambers equipped with about $10^4$ front-end boards. The correct and safe operation of the RPC system requires a sophisticated and complex online Detector Control System, able to monitor and control 2$\cdot10^4$ hardware devices distributed on an area of about 5000 m$^2$. The RPC DCS acquires, monitors and stores about $10^5$ parameters coming from the detector, the electronics, the power system, the gas, and cooling systems. The DCS system and the first results, obtained during the 2007 and 2008 CMS cosmic runs, will be described in this paper

Anomauas dentoiviaxilo faciales: su relación con el síndrome de obstrucción respiratoria

Twenty seven patients with syndrome of Respiratory obstruccion were studied. By means of lateral x-RAY, the dimensions of the airway were calculated, messearing on the same turbial and adenoidal hipertrophy. Other studies of deep structures were evaluated by means frontal x ray and rinomanometric. The open area ín bucal respiratories by turbinal and adenoidal hipertrophy decreaces, hardening the n::~rmal airway. The turbinal hipertrophy were means 8,2 mm. In the studies of deep structures the palatine, mandibular plane facial depth and lower facial height were the most deeply changed.Se estudiaron 27 paciente con Síndrome de obstrucción Respiratoria. Por medio de telerradiografías laterales se evaluaron dimensiones de nasofarínge midiendo sobre las mismas: hipertrofia de cornetes y adenoides. Otros estudios fueron realizados sobre telerradiografía frontales y rinomanometrias. Se realizaron ::afalogramas Ricketts y Me N amara. Se obtuvo como resultado que el área libre en Respiradores Bucales por hipertrofia de cornetes y adenoides disminuye significativamente dificultando el pasaje aéreo normal y que el valor medio de H.C. es de 8,2 mm. En el estudio de estructuras profundas el plano palatino, el mandibular, profundidad facial y altura facial inferior fueron los más significativamente alterado