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Article
Publication date: 13 November 2019

Ulf Melin, Pradip K. Sarkar and Leslie W. Young

The predominant narrative is that contemporary organisations, motivated by economic-rationalist aspirations, adopt cloud applications on the premise of achieving cost-savings and…

Abstract

Purpose

The predominant narrative is that contemporary organisations, motivated by economic-rationalist aspirations, adopt cloud applications on the premise of achieving cost-savings and efficiency gains. However, how they actually adopt and rollover such new or emerging technologies may be influenced by acts, patterns and processes of institutional legitimacy. Therefore, the purpose of this paper is to explore the dynamics surrounding decisions on how specific cloud applications are adopted from the context of institutional theory, with a particular focus on the concepts of coupling and decoupling.

Design/methodology/approach

To examine this phenomenon, two qualitative case studies, using a reflexive research approach, of an Australian and a Swedish university have been undertaken, both of which adopted commercial cloud applications for e.g. e-mail, collaboration and storage (as examples of software as a service) at different points in time. One of the universities was known for its early adoption of cloud applications, but had decelerated further deployment of such services, while the other, despite its conservative reputation, has made rapid strides in this regard.

Findings

The findings of the dual case studies reveal that organisations, contrary to economic-rationalist claims, may or may not decide to adopt particular commercial cloud-based offerings for the support of core operations, on the basis of how they perceive their institutional legitimacy being affected by a complex network of influential actors, both internally and in the external spaces. Therefore, this paper offers an institutional theory-based discourse and rich illustrations on how the role of technology is played out in enhancing relationships between an organisation and such actors in terms of legitimacy focusing acts of coupling and decoupling.

Originality/value

In the analysis and findings the authors, in a novel way, illustrate how organisations strive for: institutional legitimacy through acts of coupling, and the revelations of consequential decoupling. The value is based on a rich case description, analysis and application of institutional theory.

Details

Information Technology & People, vol. 33 no. 4
Type: Research Article
ISSN: 0959-3845

Keywords

Article
Publication date: 21 May 2021

Shemin T. John, Athul Mohan, Merin Susan Philip, Pradip Sarkar and Robin Davis

Timely removal of formwork is one of the crucial aspects of construction management that directly influences the safety and quality of the structure as well as the economy of the…

Abstract

Purpose

Timely removal of formwork is one of the crucial aspects of construction management that directly influences the safety and quality of the structure as well as the economy of the project. Code recommendations in this regard are not widely practiced because of the difficulties in their implementations. Also, such code recommendations are not robust for all the possible construction conditions. The present paper proposes an IoT-enabled system that notifies the minimum striking time of vertical formwork based on a specified target compressive strength.

Design/methodology/approach

An IoT device is proposed for the timely removal of vertical formwork by monitoring of early age concrete compressive strength in real-time. The maturity method is utilized for this purpose. The implementation of the proposed system is demonstrated on three concrete columns. The proposed system is found to be suitable for any construction condition.

Findings

The proposed system is a novel, cost-effective, IoT-enabled real-time monitoring system which includes features like cloud connectivity and remote monitoring. This system can be easily implemented at the site without any human intervention.

Practical implications

The study explores the development of an IoT device for the timely removal of vertical formwork which will ensure quality, safety and productivity in concrete construction.

Originality/value

This paper is the first attempt to determine the minimum striking time of vertical formwork using IoT-based technology.

Details

Engineering, Construction and Architectural Management, vol. 29 no. 5
Type: Research Article
ISSN: 0969-9988

Keywords

Article
Publication date: 26 June 2019

Soumya Guha Deb, Sibanjan Mishra and Pradip Banerjee

The purpose of this paper is to examine the causal relationship between economic development and financial sector development for 28 countries at different stages of their…

Abstract

Purpose

The purpose of this paper is to examine the causal relationship between economic development and financial sector development for 28 countries at different stages of their development. The authors specifically focus on the nature of causality during economic boom and tranquil cycles.

Design/methodology/approach

The study uses quarterly time series panels of 17 developed and 11 emerging countries, during 1993Q1-2014Q4 with each having three sub-panels – full sample, a period of the economic uptrend (UP), and period of the economic downtrend. The authors use a univariate analysis for initial screening followed by panel unit root test, panel co-integration and causality test proposed by Toda–Yamamoto to examine the causal relationship.

Findings

The principal results suggest that for developed economies, there is a causal flow from financial sector to real sector in line with the “supply-leading” hypothesis, whereas for emerging economies, it is from real sector to financial sector, in line with the “demand-following” hypothesis. This overall relationship is strong for both emerging and developed economies during economic boom or UP cycles, but becomes weak during economic downturns or tranquil periods.

Originality/value

This study is different from previous studies on this issue and contributes to the existing literature in a number of ways. First, the focus of this paper revolves around identification of differential patterns in causal flows between real and financial sectors for different economies, across different economic cycles. Second, to present a robust representation of financial sector, the authors consider both banking sector and stock market parameters as the proxy for financial sector development. Third, the authors address the “stock-flow problem” in the measurement of financial variables a typical criticism of some of the previous studies. Finally, the authors use a rich sample size comprising of about 2,500 quarterly observations for each variable, with about 1,500 observations from developed and 1,000 from emerging economies.

Details

Studies in Economics and Finance, vol. 36 no. 3
Type: Research Article
ISSN: 1086-7376

Keywords

Article
Publication date: 1 February 2003

Nilanjan Chakraborty, Suman Chakraborty and Pradip Dutta

In this paper, we present a modified kε model capable of addressing turbulent weld‐pool convection in the presence of a continuously evolving phase‐change interface during a gas…

Abstract

In this paper, we present a modified kε model capable of addressing turbulent weld‐pool convection in the presence of a continuously evolving phase‐change interface during a gas tungsten arc welding (GTAW) process. The phase change aspects of the present problem are addressed using a modified enthalpy‐porosity technique. The kε model is suitably modified to account for the morphology of the solid‐liquid interface. The two‐dimensional mathematical model is subsequently utilised to simulate a typical GTAW process with high power, where effects of turbulent transport can actually be realised. Finally, we compare the results from turbulence modelling with the corresponding results from a laminar model, keeping all processing parameters unaltered. The above comparison enables us to analyse the effects of turbulent transport during the arc welding process.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 13 no. 1
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 16 April 2024

Sonali Khatua, Manoranjan Dash and Padma Charan Mishra

Ores and minerals are extracted from the earth’s crust depending on the type of deposit. Iron ore mines come under massive deposit patterns and have their own mine development and…

Abstract

Purpose

Ores and minerals are extracted from the earth’s crust depending on the type of deposit. Iron ore mines come under massive deposit patterns and have their own mine development and life cycles. This study aims to depict the development and life cycle of large open-pit iron ore mines and the intertwined organizational design of the departments/sections operated within the industry.

Design/methodology/approach

Primary data were collected on the site by participant observation, in-depth interviews of the field staff and executives, and field notes. Secondary data were collected from the literature review to compare and cite similar or previous studies on each mining activity. Finally, interactions were conducted with academic experts and top field executives to validate the findings. An organizational ethnography methodology was employed to study and analyse four large-scale iron ore mines of India’s largest iron-producing state, Odisha, from January to April 2023.

Findings

Six stages were observed for development and life cycle, and the operations have been depicted in a schematic diagram for ease of understanding. The intertwined functioning of organizational set-up is also discovered.

Originality/value

The paper will benefit entrepreneurs, mining and geology students, new recruits, and professionals in allied services linked to large iron ore mines. It offers valuable insights for knowledge enhancement, operational manual preparation and further research endeavours.

Details

Journal of Organizational Ethnography, vol. 13 no. 1
Type: Research Article
ISSN: 2046-6749

Keywords

Article
Publication date: 7 October 2021

Dibyendu Adak, Donkupar Francis Marbaniang and Subhrajit Dutta

Self-healing concrete is a revolutionary building material that will generally reduce the maintenance cost of concrete constructions. Self-healing of cracks in concrete structure…

Abstract

Purpose

Self-healing concrete is a revolutionary building material that will generally reduce the maintenance cost of concrete constructions. Self-healing of cracks in concrete structure would contribute to a longer service life of the concrete and would make the material more durable and more sustainable. The cementitious mortar with/without incorporating encapsulates at different percentages of slag replacement with the cement mix improves autogenous healing at different ages. Therefore, this study’s aim is to develop a self-healing cementitious matrix for repair and retrofitting of concrete structures.

Design/methodology/approach

In the present work, waste straw pipes are used as a capsule, filled with the solution of sodium hydroxide (NaOH), sodium silicate (Na2SiO3) and colloidal nano-silica as self-healing activators. An artificial micro-crack on the control and blended mortar specimens at different percentages of slag replacement with cement (with/without encapsulation) is developed by applying a compressive load of 50% of its ultimate load-carrying capacity. The mechanical strength and ultrasonic pulse velocity, water absorption and chloride ion penetration test are conducted on the concrete specimen before and after the healing period. Finally, the self-healing activity of mortar mixes with/without encapsulation is analysed at different ages.

Findings

The encapsulated mortar mix with 10% of slag content has better self-healing potential than all other mixes considering mechanical strength and durability. The enhancement of the self-healing potential of such mortar mix is mainly due to hydration of anhydrous slag on the crack surface and transformation of amorphous slag to the crystalline phase in presence of encapsulated fluid.

Research limitations/implications

The self-healing activities of the slag-based cementitious composite are studied for a healing period of 90 days only. The strength and durability performance of the cracked specimen may be increased after a long healing period.

Practical implications

The outcome of the work will help repair the cracks in the concrete structure and enhances the service life.

Originality/value

This study identifies the addition encapsulates with a self-healing activator fluid that can recover its strength after minor damage.

Details

International Journal of Structural Integrity, vol. 12 no. 5
Type: Research Article
ISSN: 1757-9864

Keywords

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