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1 – 10 of 261Raffaella Santagiuliana, Massimo Fabris and Bernhard Aribo Schrefler
The purpose of this paper is to give an explanation of the new data available about surface subsidence above the depleted gas reservoir Ravenna Terra. These data confirm the…
Abstract
Purpose
The purpose of this paper is to give an explanation of the new data available about surface subsidence above the depleted gas reservoir Ravenna Terra. These data confirm the existence after end of exploitation of a reversed subsidence bowl with minimum subsidence above the reservoir, as opposed to conventional subsidence bowls during exploitation which show maximum subsidence in the same location.
Design/methodology/approach
The paper analyses these new data about the existence after end of exploitation of a reversed subsidence bowl. The observed behaviour is reproduced successfully with a fully coupled two phase flow code in deforming reservoir rocks which incorporates a constitutive model for partially saturated porous media.
Findings
The paper provides successful simulations. These allow affirming with confidence that the explanation for the peculiar behaviour is reservoir flooding and partially saturated rock behaviour.
Research limitations/implications
Further research: other case studies where similar behaviour is expected, e.g. Ekofisk.
Practical implications
The paper includes implications for better management of reservoir exploitation schedules to minimize the observed phenomenon.
Originality/value
This paper explains the peculiar behaviour of subsidence above the depleted gas reservoir Ravenna Terra and confirms the conjecture that constitutive behaviour of partially saturated rocks is the origin of the observed phenomenon.
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Huiying (Cynthia) Hou, Joseph H.K. Lai, Hao Wu and Tong Wang
This paper aims to investigate the theoretical and practical links between digital twin (DT) application in heritage facilities management (HFM) from a life cycle management…
Abstract
Purpose
This paper aims to investigate the theoretical and practical links between digital twin (DT) application in heritage facilities management (HFM) from a life cycle management perspective and to signpost the future development directions of DT in HFM.
Design/methodology/approach
This state-of-the-art review was conducted using a systematic literature review method. Inclusive and exclusive criteria were identified and used to retrieve relevant literature from renowned literature databases. Shortlisted publications were analysed using the VOSviewer software and then critically reviewed to reveal the status quo of research in the subject area.
Findings
The review results show that DT has been mainly adopted to support decision-making on conservation approach and method selection, performance monitoring and prediction, maintenance strategies design and development, and energy evaluation and management. Although many researchers attempted to develop DT models for part of a heritage building at component or system level and test the models using real-life cases, their works were constrained by availability of empirical data. Furthermore, data capture approaches, data acquisition methods and modelling with multi-source data are found to be the existing challenges of DT application in HFM.
Originality/value
In a broader sense, this study contributes to the field of engineering, construction and architectural management by providing an overview of how DT has been applied to support management activities throughout the building life cycle. For the HFM practice, a DT-cum-heritage building information modelling (HBIM) framework was developed to illustrate how DT can be integrated with HBIM to facilitate future DT application in HFM. The overall implication of this study is that it reveals the potential of heritage DT in facilitating HFM in the urban development context.
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New ways of working (NWW) change some fundamental processes in the workplace. NWW practices like teleworking, flexible workspaces, and flexible working hours lead to different…
Abstract
New ways of working (NWW) change some fundamental processes in the workplace. NWW practices like teleworking, flexible workspaces, and flexible working hours lead to different behaviors of employees. But does the employment of NWW practices also have an impact on the innovation behavior of employees? This chapter explores this relationship and uses qualitative data from case studies to illustrate the complex linkages between three components of NWW and IWB.
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Innovation drives new product development, novel approaches to our professional and personal lives, and entrepreneurial activity in our communities. Women entrepreneurs are…
Abstract
Innovation drives new product development, novel approaches to our professional and personal lives, and entrepreneurial activity in our communities. Women entrepreneurs are increasing in numbers and are becoming more visible across myriad domains. A growing number of scholars are focusing on better understanding women entrepreneurs’ unique approach to developing an entrepreneurial enterprise. However, the research suggests that entrepreneurship is still (mis)perceived as being traditionally masculine, with the number of men outnumbering the number of women entrepreneurs. Using a model of innovation consisting of the three distinct tasks of idea generation, idea promotion, and idea realization (Janssen, 2000; Scott & Bruce, 1994), this chapter explores the influence of gender on these various domains, followed by suggestions for future research and practical implications for women entrepreneurs today.
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This work aims at investigating how different governments, and political contexts, perform public service organisations as hybrid organisations in the case of health social…
Abstract
This work aims at investigating how different governments, and political contexts, perform public service organisations as hybrid organisations in the case of health social assistance care services. Run using qualitative methods (interviews and direct observation), it presents a descriptive comparative study upon five local PSOs, from five European countries, engaged in delivering services for people with autism. Analysing their developmental paths in the light of neo-institutional theories, the study points out that the trigger for the development of hybrid organisations lies in the users and governments have the crucial role of being the enabler of the process, within an evolving complex relationship between public sector and third sector, as well as society at large.
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E. Menegatti, G. Gatto, E. Pagello, Takashi Minato and Hiroshi Ishiguro
Image‐based localisation has been widely investigated in mobile robotics. However, traditional image‐based localisation approaches do not work when the environment appearance…
Abstract
Purpose
Image‐based localisation has been widely investigated in mobile robotics. However, traditional image‐based localisation approaches do not work when the environment appearance changes. The purpose of this paper is to propose a new system for image‐based localisation, which enables the approach to work also in highly dynamic environments.
Design/methodology/approach
The proposed technique is based on the use of a distributed vision system (DVS) composed of a set of cameras installed in the environment and of a camera mounted on a mobile robot. The localisation of the robot is achieved by comparing the current image grabbed by the robot with the images grabbed, at the same time, by the DVS. Finding the DVS's image, most similar to the robot's image, gives a topological localisation of the robot.
Findings
Experiments reported in the paper proved the system to be effective, even exploiting a pre‐existent DVS not designed for this application.
Originality/value
Whilst, aware that DVSs, as the one used in this work, are not diffuse nowadays, this work is significant because a novel idea is proposed for dealing with dynamic environments in the image‐based localisation approach and the idea is validated with experiments. Camera Sensor networks currently are an emerging technology and they may be introduced in several daily environments in the future.
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Afiqah R. Radzi, Nur Farhana Azmi, Syahrul Nizam Kamaruzzaman, Rahimi A. Rahman and Eleni Papadonikolaki
Digital twin (DT) and building information modeling (BIM) are interconnected in some ways. However, there has been some misconception about how DT differs from BIM. As a result…
Abstract
Purpose
Digital twin (DT) and building information modeling (BIM) are interconnected in some ways. However, there has been some misconception about how DT differs from BIM. As a result, industry professionals reject DT even in BIM-based construction projects due to reluctance to innovate. Furthermore, researchers have repeatedly developed tools and techniques with the same goals using DT and BIM to assist practitioners in construction projects. Therefore, this study aims to assist industry professionals and researchers in understanding the relationship between DT and BIM and synthesize existing works on DT and BIM.
Design/methodology/approach
A systematic review was conducted on published articles related to DT and BIM. A total record of 54 journal articles were identified and analyzed.
Findings
The analysis of the selected journal articles revealed four types of relationships between DT and BIM: BIM is a subset of DT, DT is a subset of BIM, BIM is DT, and no relationship between BIM and DT. The existing research on DT and BIM in construction projects targets improvements in five areas: planning, design, construction, operations and maintenance, and decommissioning. In addition, several areas have emerged, such as developing geo-referencing approaches for infrastructure projects, applying the proposed methodology to other construction geometries and creating 3D visualization using color schemes.
Originality/value
This study contributed to the existing body of knowledge by overviewing existing research related to DT and BIM in construction projects. Also, it reveals research gaps in the body of knowledge to point out directions for future research.
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Elena Bassoli, Andrea Gatto and Luca Iuliano
Additive manufacturing is today a viable industrial solution alongside traditional processes. Techniques like selective laser sintering (SLS) address the issues of digital…
Abstract
Purpose
Additive manufacturing is today a viable industrial solution alongside traditional processes. Techniques like selective laser sintering (SLS) address the issues of digital production and mass customization in a variety of materials. Composite parts can be obtained with specific functional and mechanical properties. Building orientation during additive manufacturing often causes anisotropy of parts' properties that is still unspecified in technical information. The purpose of this paper is to investigate the mechanical performances and failure mechanisms of an aluminium‐filled polyamide and of a new alumina‐polyamide composite produced by SLS, in comparison with unfilled PA.
Design/methodology/approach
A specific focus is set on the evaluation of primary and secondary anisotropy in the case of metal or ceramic filler, as well as on the specific contribution of powder distribution modes and joining phenomena. Macroscopic mechanical tests and the observation of joining and failure micro‐mechanisms are integrated.
Findings
The results prove the absence of relevant anisotropy amongst specimens that are produced with the axis parallel to the plane of powder deposition. Samples whose axis is parallel to the growth direction Z, instead, reveal a significantly different response with respect to other orientations.
Originality/value
An original explanatory model is assumed and validated, based on an anisotropic distribution of the reinforcing particles during parts' production, which determines the efficacy of the strengthening mechanisms during crack propagation.
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Jessica H. Williams, Geoffrey A. Silvera and Christy Harris Lemak
In the US, a growing number of organizations and industries are seeking to affirm their commitment to and efforts around diversity, equity, and inclusion (DEI) as recent events…
Abstract
In the US, a growing number of organizations and industries are seeking to affirm their commitment to and efforts around diversity, equity, and inclusion (DEI) as recent events have increased attention to social inequities. As health care organizations are considering new ways to incorporate DEI initiatives within their workforce, the anticipated result of these efforts is a reduction in health inequities that have plagued our country for centuries. Unfortunately, there are few frameworks to guide these efforts because few successfully link organizational DEI initiatives with health equity outcomes. The purpose of this chapter is to review existing scholarship and evidence using an organizational lens to examine how health care organizations can advance DEI initiatives in the pursuit of reducing or eliminating health inequities. First, this chapter defines important terms of DEI and health equity in health care. Next, we describe the methods for our narrative review. We propose a model for understanding health care organizational activity and its impact on health inequities based in organizational learning that includes four interrelated parts: intention, action, outcomes, and learning. We summarize the existing scholarship in each of these areas and provide recommendations for enhancing future research. Across the body of knowledge in these areas, disciplinary and other silos may be the biggest barrier to knowledge creation and knowledge transfer. Moving forward, scholars and practitioners should seek to collaborate further in their respective efforts to achieve health equity by creating formalized initiatives with linkages between practice and research communities.
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This paper aims to illustrate, by means of a content analysis of 278 weekly School Meeting minutes, the ways in which student voice is actualized in one democratic free school in…
Abstract
Purpose
This paper aims to illustrate, by means of a content analysis of 278 weekly School Meeting minutes, the ways in which student voice is actualized in one democratic free school in Germany.
Design/methodology/approach
This paper uses a qualitative content analysis methodology of 278 weekly School Meetings minutes.
Findings
This paper uses Fielding’s (2012) patterns of partnership typology to illustrate what counts as student voice and participation in a democratic free school.
Research limitations/implications
Limitations included being reliant on translations of German texts, some missing minutes from the entire set, the lack of a single author for the minutes (and thus degree of detail differs) and the fact that the School Meeting minutes make reference to other meetings for various sub-committees for which no minutes exist, and thus, findings on the degree of student voice may be limited. And because this is a study of one school, generalizability may be difficult. Future research into these sub-committee meetings would prove helpful as well as content analyses of other democratic free schools’ meeting minutes.
Originality/value
This study can help people more deeply understand what goes on in democratic free schools and what student voice and participation can mean within this context.
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