Search results
1 – 3 of 3Gholamreza Dehdasht, M. Salim Ferwati, Saeed Reza Mohandes, Luai El-Sabek and David John Edwards
Proper identification of the key motivating factors (or key drivers) is needed to ensure successful adaption and implementation of the lean concept for construction projects…
Abstract
Purpose
Proper identification of the key motivating factors (or key drivers) is needed to ensure successful adaption and implementation of the lean concept for construction projects. However, there lacks a study investigating the complex interrelationships existing among the key drivers contributing to Sustainable and Successful Lean Construction (SSLC) implementation for such projects. To address this shortcoming, this study aims to uncover the main critical key drivers towards the implementation of SSLC for the very first time by capturing the complexity of this vexing problem.
Design/methodology/approach
In this study, a new hybrid framework is developed through the integration of Decision-Making Trial and Evaluation Laboratory (DEMATEL) and Social Network Analysis (SNA). The novel developed framework is called the DSNA approach.
Findings
Considering the case of Malaysian construction projects, the developed DSNA gives the following major outcomes: (1) Most important critical key drivers are seen to be optimization, continuous improvement, and, improve company culture, and (2) For SSLC adoption, the critical drivers impacting other key drivers are seen to be “improve teamwork”, “reduce leadership conflict”, and “improve company culture”, thereby demanding more attention.
Practical implications
The outcomes of this study give insight for decisions and policymakers in the construction industry regarding critical key drivers and their complex interrelationships towards the further adoption of SSLC, promoting the sustainability paradigm within the respective sector.
Originality/value
This paper not only presents a list of critical drivers and the corresponding association among them towards SSLC adoption, but also proposes DSNA as a novel approach for uncovering the complex interrelationship existing in an intricate problem, improving the intricate process of decision-making.
Details
Keywords
Gholamreza Dehdasht, M. Salim Ferwati, Nazirah Zainul Abidin and Michael Olubukola Oyedeji
The transition of Malaysia from a developing country to a developed country was considered in vision 2020, whereby an average construction contribution of 6.0% in growth domestic…
Abstract
Purpose
The transition of Malaysia from a developing country to a developed country was considered in vision 2020, whereby an average construction contribution of 6.0% in growth domestic product (GDP) per annum was required. Despite this importance, still, the Malaysian construction industry has not reached the target yet. Understanding the weakness and strength of this industry can be an effective way to help the policymakers in selecting the best strategy in the promotion of the Malaysian construction industry in GDP growth. Hence, the purpose of this paper is to present an overview of the current issues and challenges faced by the contribution of the Malaysian construction industry in GDP growth.
Design/methodology/approach
To achieve this objective, all the latest statistical data presented by the Department of Statistic and Construction Industry Development Board in Malaysia until March 2018 being collected and interpreted. Furthermore, through the literature review, the most significant challenges encountered by the Malaysian construction industry identified, compared and presented.
Findings
The results highlight that the contribution of Malaysian construction into GDP is increasing with a gentle slope. Nonetheless, the Malaysian construction industry has a high impact on the employment rate. More investment in the construction sector is required to meet an average of 6% contribution in GDP. Also, to be able to seize new opportunities in the global construction market, more exerted efforts have to overcome the challenges faced by this industry.
Practical implications
This study offers practical implications to policy and decision makers in the Malaysian construction industry. Despite the constant growth of the Malaysian construction industry in recent years, there is a need for more investments and overcome to challenges to encounter an average of 6% contribution in GDP. This study provides an overview and insights to investors, stockholders and managers to formulate a long-term plan promoting the efficiency of the Malaysian construction industry.
Originality/value
This study through explaining, comparing and interpreting the real statistical data, through the tables, figures and graphs, simplified the understanding of the weakness and strength of the Malaysian construction industry.
Details
Keywords
Alireza Ardehshiri, Gholamreza Karimi and Ramin Dehdasht-Heydari
This paper aims to design, optimize and simulate the Radio Frequency (RF) micro electromechanical system (MEMS) Switch which is stimulated by electrostatically voltage.
Abstract
Purpose
This paper aims to design, optimize and simulate the Radio Frequency (RF) micro electromechanical system (MEMS) Switch which is stimulated by electrostatically voltage.
Design/methodology/approach
The geometric structure of the switch was extracted based on the design of Taguchi-based experiment using the mathematical programming and obtaining objective function by the genetic meta-heuristic algorithm.
Findings
The RF parameters of the switch were calculated for the design of Taguchi-based S11 = −5.649 dB and S21 = −46.428 dB at the working frequency of 40 GHz. The pull-in voltage of the switch was 2.8 V and the axial residual stress of the proposed design was obtained 28 MPa and the design of Taguchi-based S11 = −4.422 dB and S21 = −48.705dB at the working frequency of 40 GHz. The pull-in voltage of the switch was 2.5 V and the axial residual stress of the proposed design was obtained 25 MPa.
Originality/value
A novel complex strategy in the design and optimization of capacitive RF switch MEMS modeling is proposed.
Details