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Article
Publication date: 1 February 1998

Claudio Ruggieri and Robert H. Dodds

Describes a probabilistic methodology for fracture assessments of flawed structures constructed of ferritic steels using the research code WSTRESS. The probabilistic formulation…

Abstract

Describes a probabilistic methodology for fracture assessments of flawed structures constructed of ferritic steels using the research code WSTRESS. The probabilistic formulation for cleavage fracture implements a multiaxial form of the weakest link model which couples the macroscopic fracture behavior with a micromechanics model based on the statistics of microcracks. The Weibull stress, σw, emerges as a suitable near‐tip parameter to provide a connection between the microregime of failure and remote loading (J). WSTRESS builds on an iterative procedure to incorporate a 3‐D finite element description of the crack‐tip stress field and measured values of fracture toughness to calibrate the Weibull modulus, m, and the scale parameter, σu. Specific features of the code include statistical inference of Weibull parameters based on uncensored and censored models (with maximum likelihood method), construction of confidence intervals, several definitions for the near‐tip fracture process zone and other general facilities such as spatial integration of the stress field (to incorporate the random orientation of microcracks) and stochastic simulation of fracture data using the Monte Carlo method. The code also includes a convenient free‐form command language and a seamless interface with finite element results files stored in Patran binary or ASCII format.

Details

Engineering Computations, vol. 15 no. 1
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 9 May 2024

Claudio Rocco, Gianvito Mitrano, Angelo Corallo, Pierpaolo Pontrandolfo and Davide Guerri

The future increase of chronic diseases in the world requires new challenges in the health domain to improve patients' care from the point of view of the organizational processes…

Abstract

Purpose

The future increase of chronic diseases in the world requires new challenges in the health domain to improve patients' care from the point of view of the organizational processes, clinical pathways and technological solutions of digital health. For this reason, the present paper aims to focus on the study and application of well-known clinical practices and efficient organizational approaches through an innovative model (TALIsMAn) to support new care process redesign and digitalization for chronic patients.

Design/methodology/approach

In addition to specific clinical models employed to manage chronic conditions such as the Population Health Management and Chronic Care Model, we introduce a Business Process Management methodology implementation supported by a set of e-health technologies, in order to manage Care Pathways (CPs) digitalization and procedures improvement.

Findings

This study shows that telemedicine services with advanced devices and technologies are not enough to provide significant changes in the healthcare sector if other key aspects such as health processes, organizational systems, interactions between actors and responsibilities are not considered and improved. Therefore, new clinical models and organizational approaches are necessary together with a deep technological change, otherwise, theoretical benefits given by telemedicine services, which often employ advanced Information and Communication Technology (ICT) systems and devices, may not be translated into effective enhancements. They are obtained not only through the implementation of single telemedicine services, but integrating them in a wider digital ecosystem, where clinicians are supported in different clinical steps they have to perform.

Originality/value

The present work defines a novel methodological framework based on organizational, clinical and technological innovation, in order to redesign the territorial care for people with chronic diseases. This innovative ecosystem applied in the Italian research project TALIsMAn is based on the concept of a continuum of care and digitalization of CPs supported by Business Process Management System and telemedicine services. The main goal is to organize the different socio-medical activities in a unique and integrated IT system that should be sustainable, scalable and replicable.

Details

Business Process Management Journal, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1463-7154

Keywords

Article
Publication date: 9 October 2017

Claudio Baccarani and Fabio Cassia

The purpose of this paper is to understand how the resource integration processes that occur within service ecosystems affect both the well-being of the entire ecosystem and the…

Abstract

Purpose

The purpose of this paper is to understand how the resource integration processes that occur within service ecosystems affect both the well-being of the entire ecosystem and the well-being of specific focal actors (i.e. customers) in the ecosystem. Specifically, this paper considered cases in which customers’ well-being results from simultaneous participation in a multiplicity of service ecosystems.

Design/methodology/approach

An illustrative example, taken from the tourism context, was used to develop a conceptual framework (of which customers were the focal actors) to evaluate service ecosystem outcomes.

Findings

The results showed that the well-being of focal actors (i.e. customers) should be evaluated by considering the outcomes that arise in the interlocking service ecosystems in which the customers simultaneously participate. Further, in relation to these interlocking service ecosystems, high levels of well-being within a single ecosystem did not necessarily cause focal actors to experience high levels of well-being.

Research limitations/implications

To ensure the creation of positive customer experiences, the co-creating actors (e.g. the service providers) must first identify each of the interlocking service ecosystems in which customers simultaneously participate and then establish interactions with other relevant actors.

Originality/value

By considering the complex relationships between the well-being of a service ecosystem as a whole and the well-being of specific focal actors (e.g. customers) in an ecosystem, this study advances knowledge about evaluations on the performance of service ecosystems.

Details

The TQM Journal, vol. 29 no. 6
Type: Research Article
ISSN: 1754-2731

Keywords

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