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1 – 10 of over 12000Nima Gerami Seresht, Rodolfo Lourenzutti, Ahmad Salah and Aminah Robinson Fayek
Due to the increasing size and complexity of construction projects, construction engineering and management involves the coordination of many complex and dynamic processes and…
Abstract
Due to the increasing size and complexity of construction projects, construction engineering and management involves the coordination of many complex and dynamic processes and relies on the analysis of uncertain, imprecise and incomplete information, including subjective and linguistically expressed information. Various modelling and computing techniques have been used by construction researchers and applied to practical construction problems in order to overcome these challenges, including fuzzy hybrid techniques. Fuzzy hybrid techniques combine the human-like reasoning capabilities of fuzzy logic with the capabilities of other techniques, such as optimization, machine learning, multi-criteria decision-making (MCDM) and simulation, to capitalise on their strengths and overcome their limitations. Based on a review of construction literature, this chapter identifies the most common types of fuzzy hybrid techniques applied to construction problems and reviews selected papers in each category of fuzzy hybrid technique to illustrate their capabilities for addressing construction challenges. Finally, this chapter discusses areas for future development of fuzzy hybrid techniques that will increase their capabilities for solving construction-related problems. The contributions of this chapter are threefold: (1) the limitations of some standard techniques for solving construction problems are discussed, as are the ways that fuzzy methods have been hybridized with these techniques in order to address their limitations; (2) a review of existing applications of fuzzy hybrid techniques in construction is provided in order to illustrate the capabilities of these techniques for solving a variety of construction problems and (3) potential improvements in each category of fuzzy hybrid technique in construction are provided, as areas for future research.
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Pawan Budhwar, Andy Crane, Annette Davies, Rick Delbridge, Tim Edwards, Mahmoud Ezzamel, Lloyd Harris, Emmanuel Ogbonna and Robyn Thomas
Wonders whether companies actually have employees best interests at heart across physical, mental and spiritual spheres. Posits that most organizations ignore their workforce …
Abstract
Wonders whether companies actually have employees best interests at heart across physical, mental and spiritual spheres. Posits that most organizations ignore their workforce – not even, in many cases, describing workers as assets! Describes many studies to back up this claim in theis work based on the 2002 Employment Research Unit Annual Conference, in Cardiff, Wales.
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Elvira Kaneberg, Susanne Hertz and Leif-Magnus Jensen
The purpose of this paper is to understand the needs of the supply-chain (SC) network when coping with permanent and temporary demands, this paper analyzes the Swedish emergency…
Abstract
Purpose
The purpose of this paper is to understand the needs of the supply-chain (SC) network when coping with permanent and temporary demands, this paper analyzes the Swedish emergency preparedness SC network. This network comprises planning procedures and resources, as well as numerous organizations and other participants in civil society that take part in the system to cope with threats and ongoing crises. Planning constitutes a critical infrastructure because the system must develop the ability to shift SC functions from permanent to temporary networks in ongoing crises and war.
Design/methodology/approach
A research study is performed based on data gathered by three qualitative methods concerning the SC network of emergency preparedness planning.
Findings
This study demonstrates the relevance of a wide empirical field challenging several theoretical perspectives of the SC network in preparedness planning and the shift to ongoing crises. Further research targeting key capabilities is needed to further improve understanding of the challenges for developed countries in managing potential threats and crises.
Originality/value
Actors taking part in the preparedness system have found it challenging to coordinate. Due, in part, to the lack of a common threat profile, key capabilities remain outside preparedness planning, e.g., military, commercial and voluntary actors as well as unclear and inconsistent regulations. Thus, building the SC network demonstrates the need to target the military, the voluntary and commercial sectors and their ability to develop the networks in preparedness planning. In a reformed system, all actors must strengthen civil defense in an all-hazard approach, which in planning encompasses the entire threat scale, demonstrating key functions and the ability to shift to temporary networks responding to ongoing crises, including war.
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The purpose of this paper is to examine why and how the Trades Union Congress (TUC) – the labour movement's peak body, “think tank” and exemplar – engages in alliance building…
Abstract
Purpose
The purpose of this paper is to examine why and how the Trades Union Congress (TUC) – the labour movement's peak body, “think tank” and exemplar – engages in alliance building with civil movements and groups. In particular, it investigates: the rationale for such; the nature of the alliances and the extent to which they inform TUC revival efforts or a new approach to trade unionism.
Design/methodology/approach
Semi‐structured interviews were conducted with eight senior TUC personnel. Most interviewees provided documentary evidence to elaborate on their comments. The dimensions of a thematic analysis of this and web site evidence were structured to reflect the above areas of inquiry.
Findings
The findings are that: interest in the TUC and labour movement in alliance building with civil groups is building at all levels; TUC engagement with, promotion of and guidance on civil alliances is largely emergent and sporadic; notwithstanding this, certain parts of the TUC have increased its promotion of and to a lesser extent direct engagement with alliances. It also is shown that: such engagement looks likely to continue to grow as a feature of other revival strategies and there is little assessment of whether alliance building can help strengthen the British labour movement.
Practical implications
The findings inform the paper's discussion of potential TUC and union revival purpose, policy and practice.
Originality/value
This paper provides an in‐depth empirical study of the TUC's involvement in alliance building with other social movements and groups. Policy‐maker and practitioner interest in such is growing rapidly, particularly in light of the debatable effectiveness of familiar British union revival strategies.
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Briefly reviews previous literature by the author before presenting an original 12 step system integration protocol designed to ensure the success of companies or countries in…
Abstract
Briefly reviews previous literature by the author before presenting an original 12 step system integration protocol designed to ensure the success of companies or countries in their efforts to develop and market new products. Looks at the issues from different strategic levels such as corporate, international, military and economic. Presents 31 case studies, including the success of Japan in microchips to the failure of Xerox to sell its invention of the Alto personal computer 3 years before Apple: from the success in DNA and Superconductor research to the success of Sunbeam in inventing and marketing food processors: and from the daring invention and production of atomic energy for survival to the successes of sewing machine inventor Howe in co‐operating on patents to compete in markets. Includes 306 questions and answers in order to qualify concepts introduced.
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Linh Truong-Hong, Roderik Lindenbergh and Thu Anh Nguyen
Terrestrial laser scanning (TLS) point clouds have been widely used in deformation measurement for structures. However, reliability and accuracy of resulting deformation…
Abstract
Purpose
Terrestrial laser scanning (TLS) point clouds have been widely used in deformation measurement for structures. However, reliability and accuracy of resulting deformation estimation strongly depends on quality of each step of a workflow, which are not fully addressed. This study aims to give insight error of these steps, and results of the study would be guidelines for a practical community to either develop a new workflow or refine an existing one of deformation estimation based on TLS point clouds. Thus, the main contributions of the paper are investigating point cloud registration error affecting resulting deformation estimation, identifying an appropriate segmentation method used to extract data points of a deformed surface, investigating a methodology to determine an un-deformed or a reference surface for estimating deformation, and proposing a methodology to minimize the impact of outlier, noisy data and/or mixed pixels on deformation estimation.
Design/methodology/approach
In practice, the quality of data point clouds and of surface extraction strongly impacts on resulting deformation estimation based on laser scanning point clouds, which can cause an incorrect decision on the state of the structure if uncertainty is available. In an effort to have more comprehensive insight into those impacts, this study addresses four issues: data errors due to data registration from multiple scanning stations (Issue 1), methods used to extract point clouds of structure surfaces (Issue 2), selection of the reference surface Sref to measure deformation (Issue 3), and available outlier and/or mixed pixels (Issue 4). This investigation demonstrates through estimating deformation of the bridge abutment, building and an oil storage tank.
Findings
The study shows that both random sample consensus (RANSAC) and region growing–based methods [a cell-based/voxel-based region growing (CRG/VRG)] can be extracted data points of surfaces, but RANSAC is only applicable for a primary primitive surface (e.g. a plane in this study) subjected to a small deformation (case study 2 and 3) and cannot eliminate mixed pixels. On another hand, CRG and VRG impose a suitable method applied for deformed, free-form surfaces. In addition, in practice, a reference surface of a structure is mostly not available. The use of a fitting plane based on a point cloud of a current surface would cause unrealistic and inaccurate deformation because outlier data points and data points of damaged areas affect an accuracy of the fitting plane. This study would recommend the use of a reference surface determined based on a design concept/specification. A smoothing method with a spatial interval can be effectively minimize, negative impact of outlier, noisy data and/or mixed pixels on deformation estimation.
Research limitations/implications
Due to difficulty in logistics, an independent measurement cannot be established to assess the deformation accuracy based on TLS data point cloud in the case studies of this research. However, common laser scanners using the time-of-flight or phase-shift principle provide point clouds with accuracy in the order of 1–6 mm, while the point clouds of triangulation scanners have sub-millimetre accuracy.
Practical implications
This study aims to give insight error of these steps, and the results of the study would be guidelines for a practical community to either develop a new workflow or refine an existing one of deformation estimation based on TLS point clouds.
Social implications
The results of this study would provide guidelines for a practical community to either develop a new workflow or refine an existing one of deformation estimation based on TLS point clouds. A low-cost method can be applied for deformation analysis of the structure.
Originality/value
Although a large amount of the studies used laser scanning to measure structure deformation in the last two decades, the methods mainly applied were to measure change between two states (or epochs) of the structure surface and focused on quantifying deformation-based TLS point clouds. Those studies proved that a laser scanner could be an alternative unit to acquire spatial information for deformation monitoring. However, there are still challenges in establishing an appropriate procedure to collect a high quality of point clouds and develop methods to interpret the point clouds to obtain reliable and accurate deformation, when uncertainty, including data quality and reference information, is available. Therefore, this study demonstrates the impact of data quality in a term of point cloud registration error, selected methods for extracting point clouds of surfaces, identifying reference information, and available outlier, noisy data and/or mixed pixels on deformation estimation.
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Lars Mjøset, Roel Meijer, Nils Butenschøn and Kristian Berg Harpviken
This study employs Stein Rokkan's methodological approach to analyse state formation in the Greater Middle East. It develops a conceptual framework distinguishing colonial…
Abstract
This study employs Stein Rokkan's methodological approach to analyse state formation in the Greater Middle East. It develops a conceptual framework distinguishing colonial, populist and democratic pacts, suitable for analysis of state formation and nation-building through to the present period. The framework relies on historical institutionalism. The methodology, however, is Rokkan's. The initial conceptual analysis also specifies differences between European and the Middle Eastern state formation processes. It is followed by a brief and selective discussion of historical preconditions. Next, the method of plotting singular cases into conceptual-typological maps is applied to 20 cases in the Greater Middle East (including Afghanistan, Iran and Turkey). For reasons of space, the empirical analysis is limited to the colonial period (1870s to the end of World War 1). Three typologies are combined into one conceptual-typological map of this period. The vertical left-hand axis provides a composite typology that clarifies cultural-territorial preconditions. The horizontal axis specifies transformations of the region's agrarian class structures since the mid-19th century reforms. The right-hand vertical axis provides a four-layered typology of processes of external intervention. A final section presents selected comparative case reconstructions. To the authors' knowledge, this is the first time such a Rokkan-style conceptual-typological map has been constructed for a non-European region.
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Manuel Regueiro-Picallo, Gemma Rojo-López and Jerónimo Puertas
The purpose of this paper is to present the Strategic Research Consortium Centre for Technological Innovation in Building and Civil Engineering (A-CITEEC) and its scientific…
Abstract
Purpose
The purpose of this paper is to present the Strategic Research Consortium Centre for Technological Innovation in Building and Civil Engineering (A-CITEEC) and its scientific strategy for the promotion of research and higher education in building and civil engineering.
Design/methodology/approach
By means of an approach based on the comparison of strategic actions with other research consortia, a scientific programme is designed following innovative research areas.
Findings
The A-CITEEC is a supra-group structure that strengthens scientific research and provides new opportunities for innovation and technology transfer at the national and international level.
Research limitations/implications
The main objective of the A-CITEEC is to improve and intensify research and knowledge transfer in the fields of engineering and sustainable construction. As a direct consequence, this consortium of research groups is promoting community well-being, economic development and optimization of ecosystem services.
Practical implications
The A-CITEEC enhances collaborations in the national and international university community to achieve their objectives. Other remarkable activities encouraged by the consortium are the organization of scientific events, such as visits to the research centre, the promotion of the research transfer to companies and encouraging the presence of women researchers.
Social implications
The achievement of the objectives and research lines by the A-CITEEC members will lead to satisfying the sustainable development goals (SDGs), priorities of the RIS3 Strategy, Spanish Strategy for Science and Technology and Innovation 2013–2020 and with the European Strategy H2020.
Originality/value
The scientific activities shown in this case study are intended to ensure the continuity of the group consortium, which is unique at the regional level in the field of building and civil engineering.
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Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination of some…
Abstract
Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination of some legal aspects concerning MNEs, cyberspace and e‐commerce as the means of expression of the digital economy. The whole effort of the author is focused on the examination of various aspects of MNEs and their impact upon globalisation and vice versa and how and if we are moving towards a global digital economy.
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