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Article
Publication date: 25 May 2023

Rashma R.S.V., Jayalekshmi B.R. and Shivashankar R.

The study aims to analyse the stability of embankments over the improved ground with stone column (SC) and pervious concrete column (PCC) inclusions using limit equilibrium…

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Abstract

Purpose

The study aims to analyse the stability of embankments over the improved ground with stone column (SC) and pervious concrete column (PCC) inclusions using limit equilibrium method. The short-term stability of PCC-supported embankment system is rarely addressed. Therefore, the factor of safety (FOS) of column-supported embankment system is calculated using individual column and equivalent area models.

Design/methodology/approach

The stability analysis of column-supported embankment system is conducted using PLAXIS LE 2D. The various geometrical and shear strength parameters influencing the FOS of these embankment systems such as diameter of columns, spacing between columns, embankment height, friction angle of column material, undrained cohesion of weak ground and cohesion of PCC are considered.

Findings

The critical failure envelope of PCC-supported embankment system is observed to be of toe failure, whereas the failure envelope of stone column-supported embankment system is generally of deep-seated nature.

Originality/value

It is found that for PCC embankment system, FOS and failure envelope are not influenced by the geometrical/shear strength parameters other than height of embankment. However, for stone column-supported embankment system, FOS and failure envelope are dependent on all the shear strength and geometrical parameters considered in this study.

Details

World Journal of Engineering, vol. 21 no. 4
Type: Research Article
ISSN: 1708-5284

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Article
Publication date: 4 April 2023

Soumaya Hadri, Souhila Rehab Bekkouche and Salah Messast

The paper aims to present an experimental and numerical investigation of the load–settlement behavior of soil reinforced by stone column, as well as to evaluate the plane strain…

112

Abstract

Purpose

The paper aims to present an experimental and numerical investigation of the load–settlement behavior of soil reinforced by stone column, as well as to evaluate the plane strain unit cell model for the analysis of stone columns.

Design/methodology/approach

The numerical analysis was done using both axisymmetric and plane strain models. The elastic perfectly plastic behavior of Mohr–Coulomb was adopted for both soil and column material. The numerical results of this study were validated by the comparison with the in-situ measurements of a full-scale loading test on a stone column. This study also evaluated the effect of different parameters involved in the design of a stone column, including Young’s modulus of the column material, column diameter, spacing between the stone columns and Poisson’s ratio of the column material.

Findings

After the numerical simulation, the results from both axisymmetric and plane strain models are quite comparable. In addition, the numerical results revealed that the stone column with low spacing, a large diameter and a high Young’s modulus indicated better behavior against the settlement.

Originality/value

The axisymmetric unit cell model was used in many numerical studies on the behavior of stone columns. In the present work, a field load test on stone column was simulated using a plane strain unit cell model. This research adds that the plane strain unit cell model can be used to predict the settlement of reinforced soil with stone columns.

Details

World Journal of Engineering, vol. 21 no. 3
Type: Research Article
ISSN: 1708-5284

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Article
Publication date: 4 July 2022

Oliver Artiga, Ana Bucy, Ruo Qiu, Elaine Cramer and Marcella Raney

The purpose of this study was to determine whether combining a structured stretching program with functional movement/body position training would yield additive effects on…

199

Abstract

Purpose

The purpose of this study was to determine whether combining a structured stretching program with functional movement/body position training would yield additive effects on flexibility, ergonomic practices, and subjective pain levels for employees at high risk for work-related musculoskeletal disorders.

Design/methodology/approach

Nine control and 13 experimental university cleaning staff participated in a 10-week full-body stretching intervention led by undergraduate students. Experimental participants also engaged in functional movement/body position training once per week. Joint range of motion, task ergonomic form, pain level, and stretching motivation results were compared pre- and post-intervention.

Findings

Overall flexibility (+25.75 ± 3.33%) and task ergonomic form (+26.3 ± 10.5%) significantly improved and were negatively correlated with pain levels (r = −0.541 and r = −0.317, respectively). Experimental participants experienced greater improvements in shoulder (control: +16.8 ± 9.0%; experimental: +64.2 ± 11.5%) and hip (control: +31.4 ± 9.9%; experimental: +91.2 ± 19.9%) flexibility as well as in task-specific ergonomic form for vertical (control: +0.0 ± 5.3%; experimental: +35.2 ± 10.1%) and horizontal wiping (control: −4.7 ± 4.7%; experimental: +29.0 ± 7.8%). Intrinsic motivation was increased for both groups (+26.2 ± 15.4%).

Originality/value

Supplementing a workplace stretching program with functional movement/body position training has the potential to improve flexibility and decrease pain while simultaneously increasing the likelihood that cleaning staff will participate in self-directed stretching in the future. The intervention serves as a model for workplace health management and wellness-focused community building on university campuses who insource cleaning staff.

Details

International Journal of Workplace Health Management, vol. 15 no. 5
Type: Research Article
ISSN: 1753-8351

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Article
Publication date: 12 April 2023

Tri Sulistyaningsih, Mohammad Jafar Loilatu and Ali Roziqin

Smart urban governance research has progressed over the past few decades following changes and increasingly complicated city management difficulties. Therefore, the purpose of…

459

Abstract

Purpose

Smart urban governance research has progressed over the past few decades following changes and increasingly complicated city management difficulties. Therefore, the purpose of this paper is to use a scoping review and bibliometric analysis to examine all the publications on smart urban governance, especially in Asia.

Design/methodology/approach

A total of 1,900 smart urban governance articles indexed in the Scopus database was analyzed through scoping review and bibliometric analysis. The articles were analyzed by the number of publications per year, contributing countries, subject areas, authors, cited documents, related issues and cited papers. Furthermore, VOSviewer was used to provide a visual analysis of the co-occurrence of keywords.

Findings

This study indicated that urban smart governance publications continue to increase yearly. Even though the area of analysis is Asia, the USA and China seriously contributed to the analysis. Therefore, the topic of smart urban governance has become a discussion for scholars in the international. From the Scopus database analysis, the top three subject areas are social sciences (28%), environmental science (20%) and medicine (16%). The synthesis using bibliometric analysis by VOSviewer obtained 13 clusters.

Research limitations/implications

This study only focuses on the Scopus database and one specific topic, using one bibliometric analysis tool. Meanwhile, national and international index databases are not used.

Originality/value

This paper examined publication trends on smart urban governance. This paper provided a comprehensive analysis of topic-specific knowledge areas based on previous studies. Additionally, this paper suggested the direction of the development of smart urban governance in the future.

Details

Journal of Science and Technology Policy Management, vol. 15 no. 5
Type: Research Article
ISSN: 2053-4620

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Article
Publication date: 11 June 2024

Mohammad Reza Karami, Mohsen Keramati, Reza Maadi and Hossein Moradi Moghaddam

This study aims to examine the reuse of plastic and fly ash (FA) to improve the soil and achieve sustainable development goals.

13

Abstract

Purpose

This study aims to examine the reuse of plastic and fly ash (FA) to improve the soil and achieve sustainable development goals.

Design/methodology/approach

Sand from the Anzali port was reinforced with Geopet (GP) and stabilized with FA plus 3% sodium hydroxide. The GP was placed in FA-stabilized soil and the California bearing ratio (CBR), and unconfined compressive strength (UCS) tests were performed on samples at the optimum moisture content.

Findings

The results showed that the improvement in the optimum CBR was 174.9%. The UCS increased 15.25% and 48.65% in soil reinforced with three layers of GP plus 15% FA over those containing 10% and 5% FA, respectively. Additionally, the current analysis used response surface methodology (RSM) to investigate the impact of FA percentage, GP layers and their interaction on CBR. The results highlight the efficacy of the used RSM model, as evidenced by the significantly low p-value (<0.0001).

Originality/value

This demonstrates the suitability and effectiveness of RSM for evaluating CBR in this scientific study.

Details

World Journal of Engineering, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1708-5284

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Article
Publication date: 7 December 2023

Ágnes Szabó and Attila Kajos

Physical activity (PA) has been widely studied for its individual and societal benefits, but research on how organisations can effectively promote workplace physical activity…

470

Abstract

Purpose

Physical activity (PA) has been widely studied for its individual and societal benefits, but research on how organisations can effectively promote workplace physical activity (WPA) programmes is lacking. This article aims to examine the organisational-level benefits and value drivers of corporate PA programmes whilst also exploring the factors that motivate employees to participate in these programmes.

Design/methodology/approach

The authors used the self-determination theory (SDT) and the Hungarian Sport Motivation Scale (H-SMS) – which was modified and validated from the original English SMS scale, which is one of the six most highly cited motivation questionnaires in sports – to assess employees' motivation towards sports. In conjunction, in-depth interviews with company representatives were conducted to create a mind map outlining the impacts and advantages of WPA programmes. The study involved interviews with 13 managers in Hungary and a survey completed by 728 employees.

Findings

The findings of the authors' study indicate that WPA programmes had positive effects on employee engagement, turnover reduction and absenteeism. However, the authors' results also revealed that employee motivation to participate in these programmes was primarily driven by external factors, such as identified and introjected regulators, indicating a low level of intrinsic motivation for sports in the workplace. It is important to classify employees based on their motivation and behaviour to design and promote effective PA programmes in the workplace and to increase participation rates.

Originality/value

The authors' findings indicate the importance of aligning WPA programme promotion with employee motivation. This can encourage organisations to initiate their programmes, address participation challenges and strive for higher engagement rates. Further research on employee motivation can support the development of more effective communication strategies for companies in this context.

Details

Sport, Business and Management: An International Journal, vol. 14 no. 2
Type: Research Article
ISSN: 2042-678X

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Article
Publication date: 5 November 2021

Amit Sharma, Phillip M. Jolly, Robert Magneson Chiles, Robin B. DiPietro, Angeline Jaykumar, Hema Kesa, Heather Monteiro, Kevin Roberts and Laure Saulais

Moral aspects of food are gaining increased attention from scholars due to growing complexity of the food system. The foodservice system is a complex arrangement of stakeholders…

1179

Abstract

Purpose

Moral aspects of food are gaining increased attention from scholars due to growing complexity of the food system. The foodservice system is a complex arrangement of stakeholders, yet has not benefited from similar scholarly attention on the moral facets. This gap is of significance given that the foodservice system has increased in importance with the larger proportion of food consumed in foodservice environments. This paper aims to focus on the foodservice system with the goal of applying moral perspectives associated with the theoretical discussion on the principles of food ethics.

Design/methodology/approach

Food ethics is described within the theoretical framework of three principles, namely, autonomy, justice and well-being. These ethical principles are reviewed in context of the foodservice system comprised of food distribution (supply chains), preparation (foodservice establishments) and consumption (consumer demand). The review also includes international perspectives on foodservice system ethics to assess relativism (versus universalism) of moral issues.

Findings

As the foodservice system increases in complexity, greater discussion is needed on the ethics of this system. This study observes that ignoring ethical principles can negatively impact the ability of consumers, businesses and communities to make informed choices, and on their well-being. Alternatively, a focus on understanding the role of food ethics can provide an anchor for research, practice and policy development to strengthen the foodservice system. While these moral principles are universal truths, they will require relative introspection globally, based on local experiences.

Originality/value

This paper presents a moral principle-based description of food ethics that incorporates the various components of the expanding foodservice system.

Details

International Journal of Contemporary Hospitality Management, vol. 34 no. 1
Type: Research Article
ISSN: 0959-6119

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Article
Publication date: 8 November 2024

Kommi Kalpana and Gulshan Lal Khanna

Dietary diversity (DD) is a proxy indicator of nutrient adequacy and has been propagated as a health beneficial component of dietary behavior. This study aims to understand DD and…

5

Abstract

Purpose

Dietary diversity (DD) is a proxy indicator of nutrient adequacy and has been propagated as a health beneficial component of dietary behavior. This study aims to understand DD and its association with lipid indices among Indian Kho-Kho players.

Design/methodology/approach

In all, 50 Indian Kho-Kho players aged between 16 years and 31 years belonging to different regions of India were recruited. Dietary diversity score (DDS; food groups/day) and food variety score (FVS; number of food items/day) were considered to assess the DD. The United Nations Food and Agricultural Organization food frequency questionnaire was used as a tool. Serum total cholesterol (TC), triglycerides (TG), LDL, VLDL and HDL were measured.

Findings

The DDS and FVS showed that athletes were consuming approximately 7 of 9 food groups (Mean ± SD: 6.5 ± 1.3) and 27 varieties of foods (Mean ± SD:27.0 ± 8.6) from 9 food groups per day. This study could not find significant differences for DDS and FVS among athletes belonging to different regions. FVSs of organ meat, eggs and spices and condiments were significantly positively associated with TG (p < 0.036, p < 0.020 and p < 0.001) and VLDL (p < 0.054, p < 0.021 and p < 0.001). LDL was inversely significantly associated with FVS of cereals, white root and tubers (p < 0.032).

Research limitations/implications

DDS and FVS were not associated with lipid indices among Kho-Kho players. However, individual FVS of organ meat, eggs and spices and condiments may increase TG and VLDL. Optimum consumption of cereals and root tubers may help to maintain LDL levels among Kho-Kho players.

Originality/value

It was found that daily consumption of organ meat and eggs may increase TG and VLDL, and optimum consumption of cereals and white roots and tubers may help to maintain LDL. High energy and fat foods may act as mediators along with spices and condiments in increasing TG and VLDL.

Details

Nutrition & Food Science , vol. 55 no. 2
Type: Research Article
ISSN: 0034-6659

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Article
Publication date: 5 February 2018

Sunil Kumar, Ashwani Dhingra and Bhim Singh

The purpose of this paper is to present a road map to implement Lean-Kaizen concept using value stream mapping (VSM) to identify hidden continuous improvement opportunities in a…

5082

Abstract

Purpose

The purpose of this paper is to present a road map to implement Lean-Kaizen concept using value stream mapping (VSM) to identify hidden continuous improvement opportunities in a small and medium-sized enterprise (SME) located at the non-capital region of India.

Design/methodology/approach

From the collected data, a current state map was prepared that indicated the current operating situation of selected SME. The takt time was calculated and those processes which attained higher cycle time (C/T) than takt time were identified. The continuous flow processing was achieved by adjusting C/T of each process and supermarket pull system was developed to control the production at the workstations. Finally, a future state map was developed that served as a guide for future lean activities. Few problems were identified to realize the future state. The “5-why” analysis was used for identifying root causes of these problems and Kaizen events were proposed as solutions. In this case study, one Kaizen event was identified in which brainstorming technique was used to control the variation caused by unorthodox fixture design for clamping and de-clamping of case product and thus eliminated non-value-added activities performed by the operator on a milling machine.

Findings

Before and after implementation of value stream map, the data obtained were analyzed and eliminated rework time, reduced inventory level, reduced lead time and C/T, improved productivity and product quality are presented as finding. Lean-Kaizen provides a better chance for every individual of the industry to have a hand in achieving organization’s goals to attain continuous progress in productivity and quality of the product. Even good understanding of the concept of lean tools and techniques by SMEs, the employee willingness and motivation to identify and eliminate wastes are found feeble.

Originality/value

This study is among best practices to identify hidden improvement opportunities in the regular production of the product to increase productivity and improve quality using value stream map. The research paper gives useful understandings to the lean implementers, Kaizen identifiers, consultants and researchers.

Details

Journal of Engineering, Design and Technology, vol. 16 no. 1
Type: Research Article
ISSN: 1726-0531

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Article
Publication date: 1 February 2002

Susanne Goller, Annik Hogg and Stavros P. Kalafatis

Since its conception over 60 years ago by Frederick in 1934, the concept of segmentation has gained increasing importance, in both the consumer and the business domains…

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Abstract

Since its conception over 60 years ago by Frederick in 1934, the concept of segmentation has gained increasing importance, in both the consumer and the business domains. Examination of research within the latter domain indicates that, although considerable amounts of research have been carried out, these efforts appear to focus on sub‐areas of segmentation such as the development of segmentation bases and models, at the expense of a more strategic view. This not only has resulted in a diffused understanding of the subject‐matter but also is posited to have slowed the progress of theory development and research in business segmentation. Presents a comprehensive conceptualisation of business segmentation in the form of an integrating framework of business segmentation, aimed at raising new research agendas which could lead to a better understanding of existing gaps between theory and implementation and better recommendations to practitioners and assisting further development of theory in business segmentation.

Details

European Journal of Marketing, vol. 36 no. 1/2
Type: Research Article
ISSN: 0309-0566

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