Application of the Bayesian statistical approach to develop a Stone Mastic Asphalt (SMA) pavement performance model

Stone mastic asphalt (SMA) has not been widely used in the pavement industry, and there are no detailed design specifications for this type of asphalt. Therefore, long-term performance data is not available widely, and no performance model has been developed for SMA. The main purpose of this study was to integrate expert knowledge (using the Markov-chain process) and experimental data from field investigations to propose a performance model for SMA through the incorporation of the Bayesian technique. The combination of these sources of data resulted in an efficient and effective method to develop a performance model for this type of pavement, which did not have a long-term performance database. As a result, a robust linear performance model was established to predict the service life of SMA. The service life of SMA can be estimated explicitly according to the developed performance model which has been validated using a new set of data.

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Post-Acquisition Performance of Emerging Market Firms: A Multi-Dimensional Analysis of Acquisitions in India

Journal of Risk and Financial Management ◽

10.3390/jrfm14120567 ◽

2021 ◽

Vol 14 (12) ◽

pp. 567

Author(s):

Arindam Das

Keyword(s):

Structural Equation ◽

Emerging Market ◽

Empirical Studies ◽

Short Term ◽

Firm Level ◽

Acquisition Performance ◽

Long Term Performance ◽

Term Performance ◽

A Performance

M&A performance is a multifaceted, compound construct with no overarching factor that captures all different dimensions. This paper examines the concept of acquisition performance and proposes a model that links firm-level factors and transaction parameters with firms’ short-term and long-term performance, extending to financial-, market- and innovation measures. Building on past empirical studies on the influence of various factors on M&A performance, a multi-dimensional structural equation model has been developed and it has been tested with a dataset on acquisitions in the Indian technology sector over a period of ten years. The results suggest that: (a) smaller acquirers with higher book value and leveraged firms demonstrate better long-term performance; (b) contrary to established understanding, short-term market returns are not influenced by deal parameters; (c) majority stake purchases show relatively lesser gains—suggesting the possible presence of post-acquisition integration issues and, (d) acquirers with high intangible assets continue to do well on innovation performance post-acquisition. By indicating situations and conditions under which an acquisition would potentially lead to a performance gain for the acquirer, these results provide significant insight to practitioners pursuing M&As for growth opportunities.

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Long Term Performance of Fusion Bond Epoxy Coated Pipelines

2004 International Pipeline Conference, Volumes 1, 2, and 3 ◽

10.1115/ipc2004-0570 ◽

2004 ◽

Author(s):

Robert Worthingham ◽

Matt Cetiner

Keyword(s):

Service Life ◽

Cathodic Protection ◽

Laboratory Tests ◽

Large Diameter ◽

Service Temperature ◽

Line Pipe ◽

Coating Type ◽

Long Term Performance ◽

Term Performance

TransCanada Pipelines has been using fusion bond epoxy (FBE) external coatings for large diameter line pipe since the early 1980’s. Overall, this coating type, when applied in accordance to the CSA Z245.20 standard provides excellent protection and long term service life. However, some reports from the field described the periodic occurrence of blistering and disbondment of the coating. In order to understand the magnitude and causes of these phenomena, an investigative program was initiated. Laboratory tests and a program of field examinations were carried out. Some of the variables considered were: age of the coating; service temperature; cathodic protection (CP) levels; and soil type. No evidence of a pipeline integrity threat associated with fusion bond epoxy deterioration was found at any of the locations examined. Observations and correlations of coating to exposure conditions will be presented.

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Entry Strategy and Long-Term Performance: Conceptualization and Empirical Examination

Journal of Marketing ◽

10.1177/002224299505900401 ◽

1995 ◽

Vol 59 (4) ◽

pp. 1-16 ◽

Cited By ~ 33

Author(s):

Donna H. Green ◽

Donald W. Barclay ◽

Adrian B. Ryans

Keyword(s):

Media Coverage ◽

Performance Model ◽

Empirical Examination ◽

Software Market ◽

Entry Strategy ◽

Product Entry ◽

Microcomputer Software ◽

Long Term Performance ◽

Term Performance

A product entry strategy—the timing of entry, the magnitude of investment at entry, and the area of competitive emphasis at entry—affects long-term performance in the marketplace. The authors develop the Entry Strategy Performance Model (ESPM) and propose an encompassing framework for product entry strategy research. They empirically test a research model derived from the ESPM through an examination and replication in the microcomputer software market. The authors’ significant findings are that initial competitive positioning and media coverage (an atypical market characteristic) drive long-term performance.

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Industrial Performance: An Evolution Incorporating Ethics in the Context of Industry 4.0

Sustainability ◽

10.3390/su13169209 ◽

2021 ◽

Vol 13 (16) ◽

pp. 9209

Author(s):

Lamia Berrah ◽

Vincent Cliville ◽

Damien Trentesaux ◽

Claude Chapel

Keyword(s):

Performance Management ◽

Industry 4.0 ◽

Autonomous Systems ◽

Performance Model ◽

Manufacturing Execution System ◽

Industrial Performance ◽

Long Term Performance ◽

Term Performance

This article addresses the issue of the industrial performance model and its evolution to cope with the context of Industry 4.0. With its digitalisation, intelligent/autonomous systems and wealth of data, Industry 4.0 offers opportunities that can achieve objectives better. It also presents risks and uncertainties that question the autonomy of the systems, their interaction with humans and the use of available data. The hypothesis put forward in this work is that the efficiency–effectiveness–relevance performance triangle can no longer guarantee long-term performance under these conditions and needs to be associated with an ethical dimension that allows for the risks and uncertainties relating to Industry 4.0 to be considered. Ethics is therefore considered to extend the triangle to a tetrahedron. A brief analysis of current performance management will first show the limits of the current practice in the context of Industry 4.0. The frameworks that could overcome these limits in light of new needs are then recalled and discussed, leading to the choice of ethics, whose main definitions and use in the engineering field are also introduced. The proposed (efficiency–effectiveness–relevance–ethics tetrahedron-based methodology is illustrated through a case study related to an aeronautical supplier, regarding the consequences of the implementation of a MES (Manufacturing Execution System) in terms of product traceability and operator autonomy. The discussion and prospects finally conclude this study.

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Effect of Water Proofing Materials on Self-Healing Concrete

European Journal of Formal Sciences and Engineering ◽

10.26417/190vto47v ◽

2020 ◽

Vol 3 (1) ◽

pp. 35

Author(s):

Tayfun Uygunoğlu ◽

İlker Bekir Topçu

Keyword(s):

Service Life ◽

External Factors ◽

Powder Materials ◽

Self Healing ◽

Micro Cracks ◽

Water Proofing ◽

Long Term Performance ◽

Term Performance ◽

Water Repellents

Improving the strength of the concrete structures and increasing the service life is an important issue. The service times of the concrete remained; external factors such as water penetrating into these micro-cracks and shorten the life of the concrete. In order to solve this problem, the idea of self-healing concrete with bacteria or other materials has been put forward and studies have shown that using CaO based materials that repair cracks in this direction by precipitating calcite. It is obvious that long term performance of concrete will increase with to prevent water pass to concrete interior. Instead of forming a barrier on the positive or negative side of concrete, water proofing admixture turn the concrete itself into a water barrier. Internal concrete waterproofing systems can be water repellents or crystalline admixtures. In this study, water proofing admixture was added to concrete mixture as water proofing material and its effect on self-healing in terms of filling the pores was investigated. Beam samples including the CaO based water proofing powder materials were produced in size of 285x75x25 mm. The samples were cracked in the flexural machine. After some days, the cracks were investigated by microscope. Crak control was continued till 28 days. At the end of study, the cracks smaller than 0.3 mm were self-healed. However, the bigger cracks than 0.3 mm cannot be self-healed by water proofing material. Consequently, self-healing of concrete with CaO based water proofing powder material is very promising for the environmentally friendly and sustainable structures of the future.

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Effects of Spatial Repeatability On Long-Term Flexible Pavement Performance

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1243/pime_proc_1996_210_177_02 ◽

1996 ◽

Vol 210 (2) ◽

pp. 97-110 ◽

Cited By ~ 6

Author(s):

A C Collop ◽

D Cebon ◽

D J Cole

Keyword(s):

Performance Model ◽

Pavement Performance ◽

Heavy Vehicles ◽

Environmental Loading ◽

Vehicle Fleet ◽

Pavement Performance Model ◽

Pavement Damage ◽

Long Term Performance ◽

Term Performance

The effects of spatial repeatability of dynamic tyre forces on the long-term performance of three typical British pavement constructions are investigated. Long-term pavement performance is calculated using a ‘whole-life pavement performance Model’ (WLPPM). The WLPPM is capable of predicting deterministic pavement damage due to realistic traffic and environmental loading, throughout the life of the pavement. Particular attention is given to modelling dynamic tyre forces and patterns of loading applied to the pavement by a typical fleet of heavy vehicles. A method is described for simulating vehicle fleets with varying degrees of spatial repeatability using a small number of dynamic tyre force histories. Results indicate that thinner pavements are most sensitive to the level of spatial repeatability exhibited by the vehicle fleet. Pavement damage predictions made without assuming an appropriate level of spatial repeatability can be in error by 20–150 per cent, the higher values being for thinner pavements that fail by fatigue damage.

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