The purpose of this study was conducted at an enterprise that produces fasteners and is one of the leading companies in the sector in terms of market share. Possible defects in…
Abstract
Purpose
The purpose of this study was conducted at an enterprise that produces fasteners and is one of the leading companies in the sector in terms of market share. Possible defects in the coating of bolts and nuts either lead to products being scrapped or all of the coating process being repeated from beginning to end. In both cases, the enterprise faces a waste of time and excessive costs. Through this project, the six sigma theory and its means were effectively used to improve the efficiency and quality management of the company. The selection of the six sigma project has also contributed to the creation of various documents to be used for project screening and evaluation of financial results.
Design/methodology/approach
Six sigma is an optimization strategy that is used to improve the profitability of businesses, avoid waste, scrap and losses, reduce costs and improve the effectiveness of all activities to meet or exceed customers’ needs and expectations. Six sigma’s process improvement model, known as Definition-Measurement-Analysis-Improvement-Control, contributes to the economic and technical achievements of businesses. The normal distribution of a process should be within ±3 sigma of the mean. This represents a scale of 99.7% certainty. However, improving the process through the utilization of the six sigma rule, which accepts normal variabilities of processes twice as strict, will result in an error rate of 3.4 per million instead of 2,700 per million for each product or service.
Findings
Using six sigma practices to reduce the costs associated with low quality and to increase economic added value became a cultural practice. With this, the continuation of six sigma practices throughout the Company was intended. The annual cost reduction achieved with the utilization of six sigma practices can be up to $21,780. When time savings are also considered, a loss reduction of about $30,000 each year can be achieved. The coating thickness efficiency increased from 85% to 95% after the improvements made through the six sigma project. There is a significant increase in the efficiency of coating thickness. In addition, the coating thickness efficiency is also close to the target value of 95%–97%.
Originality/value
The results of the study were optimized with the help of deep learning. The performance of the model created in deep learning was quite close to the actual performance. This result implicates the validity of the improvement work. The results may act as a guide for the use of deep learning in new projects.
Details
Keywords
Ahmed O. El-Kholei, Ghada Yassein and Ibrahim Sedky Rizkallah
Sustainable urban development involves integrating intelligent technology into urban planning to promote economic growth, social services, and environmental preservation. It…
Abstract
Purpose
Sustainable urban development involves integrating intelligent technology into urban planning to promote economic growth, social services, and environmental preservation. It fosters inclusiveness, safety, resilience, and sustainability in urban environments. However, this strategy faces challenges balancing economic growth, social equality, and environmental preservation. Design experts must balance economic development with sustainability preservation to achieve sustainable urban development. They depend on technology for smarter communities. The paper aims to identify the criteria for sustainable urban design and design professionals' bias and their awareness of using the fourth industrial revolution technologies.
Design/methodology/approach
The research methodology involves a document review to identify criteria and weights for sustainable urban design. A questionnaire was conducted with 30 design professionals to understand their preferences and biases. A hierarchical framework was created, and pairwise comparisons were computed using an AHP Online System. The weight of each criterion was calculated by aggregating normalized pairwise values within each row and dividing by the total number of cells. The Consistency Ratio (CR) was determined by aggregating the values in the row to produce the weighted aggregate value for each principle.
Findings
The document review emphasizes the significance of sustainable urban design, livability, intelligence, and environmental conservation in sustainable communities. However, participants often overlook these aspects, focusing on comfort, privacy, security, and exclusiveness. They also ignore the need for smart city technologies and environmental protection. This lack of understanding may hinder Egypt’s achievement of SDG11.
Research limitations/implications
The paper’s main limitation is the small sample size and composition, as all participants were Egyptians working in Egypt or the Arabian Gulf region. The findings cannot be generalized, and future research could involve a team from different regions. Egypt needs to address the lack of knowledge and awareness of sustainable urban design principles among design professionals to achieve SDG 11 goals. This can be achieved through educational initiatives, readjusting priorities towards sustainability, harmonizing policy and practice with sustainable urban design principles, and interdisciplinary teamwork. Design professionals should customize their methods to suit local requirements and ecological circumstances.
Originality/value
The paper reveals that many design professionals lack an integrated and holistic understanding of sustainable urban design principles that the document review outlined. Their responses and practices reveal an incomplete understanding of sustainable urban development, requiring attention to organizing the profession, training practitioners, and reforming planning education. The paper shows that AHP has the potential to serve as a suitable instrument for decision-making; nonetheless, it is essential to exercise caution when interpreting its outcomes.
Details
Keywords
Magdalini Vitsou and Maria Papadopoulou
The recent world refugee crisis has mobilized societies all around the globe and has led to the multiplication of initiatives calling for support to refugees. Given the fact that…
Abstract
The recent world refugee crisis has mobilized societies all around the globe and has led to the multiplication of initiatives calling for support to refugees. Given the fact that one-third of the displaced population were children, measures for their immediate integration into schools were taken in most European countries. Although in Greece children with refugee experience first attended schools in 2017, teachers were not adequately prepared to cope with students who had lacked schooling for many years and with whom they couldn’t easily communicate due to language barriers. New teaching methodologies were needed for pre- and in-service teachers to bridge the gap between existing knowledge and the needs of refugee students. In this context, the authors designed a project called “Literacy through Drama” in the reception class of a public school in Volos, Greece involving 12 pre-service teachers. The findings of the study highlight that drama-based informal learning may provide opportunities for pre-service teachers to develop valuable knowledge about learners in authentic settings and pedagogy in practice. Faculties of education could facilitate effective community partnerships with organizations that work with refugee families and children and the school system and propose holistic curricula which include refugee student experiences. Moreover, pre-service teachers could gain skills and knowledge in supporting refugee students, identify refugee students’ needs, communicate in creative ways, and overcome deficit beliefs about refugee students.
Details
Keywords
Ola Ahmed Maged, Robert Brown and Nancy Abdel-Moneim
The purpose of the research is to propose reforms that would help to bridge the gap between theory and practice and produce more effective urban planners. The research on urban…
Abstract
Purpose
The purpose of the research is to propose reforms that would help to bridge the gap between theory and practice and produce more effective urban planners. The research on urban planning curricula in the global South is a valuable contribution to the field of urban planning education. It provides a new perspective on the challenges facing urban planning education in these countries and offers a roadmap for improvement.
Design/methodology/approach
The research explores and evaluates the urban planning curricula in the global South, with a particular interest in Egypt. The research employs the use of questionnaires with 56 university instructors, analysed thematically, to evaluate the current content of curricula. The results are compared and correlated with a pilot study exploring research interest, government policies and practices of urban planning in Egypt.
Findings
Through comparing the results of the evaluation with the current research interest in urban planning in Egypt, the paper investigates the possibility of improving current educational curricula using comparative network analysis which would establish stronger interdisciplinary connections.
Originality/value
The seeming disconnects between urbanism concepts taught in educational curricula and their relevance in practice and reality is a vital issue in urban studies and planning. Interdisciplinary connections with topics like politics, economies, gender, and others can assist curricula in becoming more relevant to real-world situations. This disconnect is even more apparent in the global South where most educational content is highly derivative from Northern contexts. Though such interdisciplinary aspects are under discussed in educational curricula, they are frequently discussed in academic research.
Details
Keywords
The purpose of this paper is to enhance sustainability in affordable housing in Saudi Arabia within an effective locally adopted sustainability assessment tool by discussing the…
Abstract
Purpose
The purpose of this paper is to enhance sustainability in affordable housing in Saudi Arabia within an effective locally adopted sustainability assessment tool by discussing the multi interdisciplinary concept of sustainability in the built environment and introducing environmental indicators which are recently developed to foster environmentally responsible practices. The study aim expands beyond proposing sustainable feasible alternatives for existing affordable housing project in Saudi Arabia, namely, Al-Ghala project, to appropriating the measuring tool itself to make the review process easier, faster and more effective.
Design/methodology/approach
Al-Ghala project, a typical affordable housing project is selected to act as a case study for this research. The housing units are assessed according to LEED to obtain the overall evaluation which obviously reflects the quality of the project sustainability. Elements that negatively affect the score and suggested feasible remedies are then identified, as well as inapplicable and inappropriate LEED components. The data were complemented by observation, interviews with occupants and project management team, monthly consumption rates of water and electricity, in addition to computer modelling and analysis by Ecotect and Green Building Studio.
Findings
Sustainability in affordable housing requires a holistic framework that promotes environmentally responsible practices including design, construction and management phases. LEED provides evidence that it can considerably contribute in enhancing sustainability of post-occupied affordable housing units by identifying points of weakness that lead to inefficient use of energy, water and materials; paving the way for a wide range of sustainable modifications. In addition, for LEED to be competent in Saudi Arabia a native version needs to be developed in which local circumstances are taken into consideration.
Research limitations/implications
According to the wide range of subjects covered by LEED, some elements could not be measured in depth. Impact of modifications proposed for LEED needs to be tested further.
Practical implications
The paper includes implications for the development of feasible environmentally sensitive affordable housing in Saudi Arabia.
Originality/value
This paper fulfills an identified need to study how affordable housing can be made sustainable.
Details
Keywords
Zahran Al‐Salti and Ray Hackney
The purpose of this study is to investigate the key factors that facilitate or inhibit knowledge transfer success from vendors to clients in information systems (IS) outsourcing.
Abstract
Purpose
The purpose of this study is to investigate the key factors that facilitate or inhibit knowledge transfer success from vendors to clients in information systems (IS) outsourcing.
Design/methodology/approach
The collection of data rested on semi‐structured interviews with IS/IT managers at various levels of the subject organizations and careful documents analysis.
Findings
The findings suggest that knowledge transfer success in IS outsourcing is affected by four sets of factors: knowledge‐related, client‐related, vendor‐related and relationship‐related.
Practical implications
This study may provide some useful insights for IS managers on how to manage knowledge transfer in IS outsourcing projects and better understand the key factors that impact its success.
Research limitations/implications
This study investigated the client's perceptive only which is one side of the knowledge transfer process. A balanced understanding of the research questions (i.e. from both sides: client and vendor) permits a fuller examination and comparison between the perceptions of the two sides of the relationship.
Originality/value
The value and the originality of this study come from the fact that knowledge transfer in IS outsourcing has not been comprehensively explored. Previous research fails to provide a complete understanding of the factors that impact knowledge transfer success as most are focused on the type of knowledge transferred, the client, the vendor or the relationship between the client and the vendor.
Details
Keywords
A.F. Maged and E.A. Saad
Large amounts of uranium, radium and radium products are redistributed throughout the environment owing to the use of phosphate fertilizers. Potential radiological impacts…
Abstract
Large amounts of uranium, radium and radium products are redistributed throughout the environment owing to the use of phosphate fertilizers. Potential radiological impacts resulting from direct exposure, inhalation and ingestion of foods grown with fertilizers are discussed. This paper describes a simple method to measure exhalation rate of 222RN from phosphate fertilizers, clay and potatoes in a laboratory and in a more economical way. Three Egyptian factories of phosphate fertilizers were selected in this study (Assuit, Abu Zaable and Kafr El Ziat).
Laurens Holmes, Elias Malachi Enguancho, Rakinya Hinson, Justin Williams, Carlin Nelson, Kayla Janae Whaley, Kirk Dabney, Johnette Williams and Emanuelle Medeiros Dias
Postneonatal mortality (PNM), which differs from infant and perinatal mortality, has been observed in the past 25 years with respect to the health outcomes of children. While…
Abstract
Purpose
Postneonatal mortality (PNM), which differs from infant and perinatal mortality, has been observed in the past 25 years with respect to the health outcomes of children. While infant and perinatal mortality have been well-evaluated regarding racial differentials, there are no substantial data on PNM in this perspective. The purpose of this study was to assess whether or not social determinants of health adversely affect racial/ethnic PNM differentials in the USA.
Design/methodology/approach
A cross-sectional, nonexperimental epidemiologic study design was used to assess race as an exposure function of PNM using Cohort Linked Birth/Infant Death Data (2013). The outcome variable assessed PNM, while the main independent variables were race, social demographic variables (i.e. sex and age) and social determinants of health (i.e. marital status and maternal education). The chi-square statistic was used to assess the independence of variables by race, while the logistic regression model was used to assess the odds of PNM by race and other confounding variables.
Findings
During 2013, there were 4,451 children with PNM experience. The cumulative incidence of PNM was 23.6% (n = 2,795) among white infants, 24.3% (n = 1,298) among Black/African-Americans (AA) and 39.5% (n = 88) were American-Indian infants (AI), while 21.3% (n = 270) were multiracial, χ2 (3) = 35.7, p < 0.001. Racial differentials in PNM were observed. Relative to White infants, PNM was two times as likely among AI, odds ratio (OR) 2.11 (95% confidence interval [CI] 1.61, 2.78). After controlling for the confounding variables, the burden of PNM persisted among AI, although slightly marginalized, adjusted odds ratio (aOR) 1.70, (99% CI 1.10, 2.65).
Originality/value
In a representative sample of US children, there were racial disparities in PNM infants who are AI compared to their white counterparts, illustrating excess mortality. These findings suggest the need to allocate social and health resources in transforming health equity in this direction.
Details
Keywords
Maozeng Xu, Zhongya Mei, Siyu Luo and Yi Tan
This paper aims to analyze and provide insight on the algorithms for the optimization of construction site layout planning (CSLP). It resolves problems, such as the selection of…
Abstract
Purpose
This paper aims to analyze and provide insight on the algorithms for the optimization of construction site layout planning (CSLP). It resolves problems, such as the selection of suitable algorithms, considering the optimality, optimization objectives and representation of layout solutions. The approaches for the better utilization of optimization algorithms are also presented.
Design/methodology/approach
To achieve the above, existing records (results = 200) were selected from three databases: Web of Science, ScienceDirect and Scopus. By implementing a systematic protocol, the articles related to the optimization algorithms for the CLSP (results = 75) were identified. Moreover, various related themes were collated and analyzed according to a coding structure.
Findings
The results indicate the consistent and increasing interest on the optimization algorithms for the CLSP, revealing that the trend in shifting to smart approaches in the construction industry is significant. Moreover, the interest in metaheuristic algorithms is dominant because 65.3% of the selected articles focus on these algorithms. The optimality, optimization objectives and solution representations are also important in algorithm selection. With the employment of other algorithms, self-developed applications and commercial software, optimization algorithms can be better utilized for solving CSLP problems. The findings also identify the gaps and directions for future research.
Research limitations/implications
The selection of articles in this review does not consider the industrial perspective and practical applications of commercial software. Further comparative analyses of major algorithms are necessary because this review only focuses on algorithm types.
Originality/value
This paper presents a comprehensive systematic review of articles published in the recent decade. It significantly contributes to the demonstration of the status and selection of CLSP algorithms and the benefit of using these algorithms. It also identifies the research gaps in knowledge and reveals potential improvements for future research.