Lean Management Research Articles

Energy-saving strategy and method of spindle deceleration during no-load operation of machine tools for energy lean management

Computer Numerical Control (CNC) machine tools undergo periods of no-load motion, such as tool feeding, tool withdrawing, and tool changing, during workpiece processing. These intervals result in energy wastage as the machine tools remain idle without performing cutting operations. To address this issue, we propose a novel energy-saving strategy and method involving spindle deceleration during the no-load operation of machine tools for energy lean management. Specifically, we conducted three tasks: (1) analyzed the energy consumption characteristics of the CNC machine tool during no-load operation; (2) established a theoretical decision-making model for the energy-saving method of spindle deceleration; (3) discussed the energy-saving critical time for energy savings and the energy-saving effect of the deceleration strategy for the machine tool spindle through three machining cases. Furthermore, we conducted a case study using the CK6153i lathe to verify the effectiveness and feasibility of the proposed method. The results demonstrated significant energy savings of 1826.65 J, 2948.85 J, and 7650.05 J, along with reductions in energy waste of 14.99 %, 20.43 %, and 53.01 %, respectively, in the three machining cases through the implementation of the spindle deceleration strategy. We believe that the outcomes of this research can better assist engineers in the energy lean management of machine tools.

Quality methods in virtual and augmented reality with a focus on education: a systematic literature review

AbstractWith the goal of developing a unified approach for implementation of training for quality methods—with the help of innovative assistance systems—the current state of research is determined within the scope of this work. These quality methods include Quality Management Systems such as Lean Management and Six Sigma. A systematic literature search is conducted to determine the current state of research on Augmented and Virtual Reality data glasses, which are considered here as innovative assistance systems. This search extends without restriction to the date of data collection at the beginning of the year 2022, as Augmented and Virtual Reality data glasses are considered to be particularly immersive technologies. Based on the databases Scopus and Web of Science, an extended systematic literature review was used for the research. By answering the research question and classifying the implemented research work, an overview of the current state of virtual and augmented reality research will be given. This makes it clear that further research is needed, especially with regard to the training of quality methods, to develop specific models and action guidelines.

A Lean Management Framework for Achieving Sustainability Through Reducing Risks During the Design Process

The building sector is a substantial global industry that plays a significant role in the social and economic advancement of nations. The construction industry has been criticized for its unsustainable practices, including waste generation, pollution, and the consumption of non-renewable resources and energy. Due to the dynamic nature of the construction industry and the involvement of multiple parties with diverse goals, knowledge, and skills, the industry is susceptible tovarious risks that can undermine the sustainability of projects. This research aims to develop a Lean Management (LM) framework to deliver sustainable construction projects through reducing risks during the design process. A research methodology consisting of literature review, case studies and survey questionnaire was designed to achieve the research aim. Firstly, literature review was used to investigate the concepts of sustainability, risks in the design process and LM. Secondly, two case studies were presented and analysed to investigate the role of LM in achieving sustainability in construction projects through reducing the risks of the design process. Thirdly, a survey questionnaire was conducted with a representative sample of Architecture Design Firms (ADFs) in Egypt to investigate their perception and application of LM towards delivering sustainable projects by reducing the risks during the design process. A framework is developed to facilitate integrating LM within the design process to reduce risks during the design process as an approach for achieving sustainability goals. The research identifies 18 design risk factors, their causes and impacts on delivering sustainable project. In addition, it correlated LM tools and techniques that could be used to reduce risks during the design process. Case studies showed that ADFs that adopted LM approach succeeded in achieving sustainability objectives and reducing associated risks. Moreover, data analysis of the survey questionnaire helped ranking the presented risks by the ADFs along with investigating their perception towards using LM within the design process. These findings necessitated acting towards developing a framework to reduce these risks towards achieving sustainability objectives in construction projects.

A Synergetic Effect of the Integration of Lean, Sustainable Construction Practices and Alliance Contract on Operation Performance in the Indian Construction Industry

By pioneering a comprehensive analysis of lean integration within the construction sector, this research provides novel insights into optimizing project outcomes. The construction industry is generally known for its frequent deadline slip-ups, budget overruns, and issues with upholding proper quality. It is usual practice to integrate different management techniques which are successful in the production industry in order to avoid such issues. Several researchers adopted sustainable construction management, lean management and alliance contract practices individually on construction sites to improve the profit, productivity, quality and transparency of the project. In this study, the synergetic integration of sustainable construction management, lean management and alliance contract practices have been studied. A questionnaire survey was conducted among 345 practitioners, resulting in 309 responses after screening. These respondents, comprising various roles in the AEC sector, provided insights into their experience, project involvement, and business sectors. The study identified 23 factors associated with lean practices, sustainable construction, and alliance contracts, examining their relationships and benefits through Structural Equation Modeling (SEM). The results demonstrate significant effects of lean practice, sustainable construction, and alliance contract factors on the benefits derived from their integration. Measures of reliability and validity affirm the robustness of these relationships. The discussion underscores the benefits of integration, including enhanced efficiency, reduced environmental impact, improved collaboration, shared risk and reward, superior project outcomes, and competitive advantage. Overall, this research elucidates the potential advantages of integrating these methodologies within construction projects.

The effect of lean, agile, resilient and sustainable (LARS) HRM on the environmental performance: the mediating role of green innovation

PurposeThe current study’s goal is to investigate how lean, agile, resilient and sustainable human resource management (LARS HRM) affects green innovation and environmental performance, both directly and indirectly.Design/methodology/approachPartial least squares-structural equation modeling (PLS-SEM) was used to analyze the data based on a sample of 273 Tunisian businesses in the industrial and service sectors that were certified ISO 9001.FindingsWith the exception of AHRM–GPdtI, the results show that the mainstream advanced theory on direct effects was verified. With regard to indirect effects, everything of the literature that was presented was accepted, with the exception of the relationship between AHRM–GPdtI–EP, AHRM–GPssI–EP and RHRM–GPdtI–EP.Originality/valueThis research is distinctive in that it aims to incorporate every LARGS paradigm within the HRM field. By taking green innovation into consideration, it closes the current gaps on the direct and indirect effects of LARS HRM on environmental performance. Our study is unique in that it incorporates large, industry-operating, certified ISO 9001 firms with those in the service sector, with the goal of achieving greater generalization of results.

Economic Impact of Lean Healthcare Implementation on the Surgical Process.

The objective of this study was to analyse and detail surgical process improvement activities that achieve the highest economic impact. Over 4 years, a team of technicians and healthcare professionals implemented a set of Lean surgical process improvement projects at Vall d'Hebron University Hospital (VHUH), Barcelona, Spain. Methods employed in the study are common in manufacturing environments and include reducing waiting and changeover time (SMED), reducing first time through, pull, and continuous flow. Projects based on these methods now form part of the daily routine in the surgical process. The economic impact on the hospital's surgical activity budget was analysed. Process improvements have led to annual operational savings of over EUR 8.5 million. These improvements include better patient flow, better management of information between healthcare professionals, and improved logistic circuits. The current cultural shift towards process management in large hospitals implies shifting towards results-based healthcare, patient-perceived value (VBHC), and value-added payment. A Lean project implementation process requires long-term stability. The reason a considerable number of projects fail to complete process improvement projects is the difficulty involved in establishing the project and improving management routines. Few studies in the literature have investigated the economic impact of implementing Lean management a posteriori, and even fewer have examined actual cases. In this real case study, changes to surgical block management were initiated from stage zero. After being carefully thought through and designed, changes were carried out and subsequently analysed.

Взаимосвязь проектного управления с концепцией бережливого производства на предприятии

The author examined the theoretical and methodological provisions of the relationship between project management and the concept of lean production in an enterprise, the history of the development of project management, the concept and purpose. It is noted that in modern conditions, project management managers are faced with new requirements for high agility, flexibility, prompt provision of the main departments of enterprises with operational information, but quite effective and manageable. This lean project management should contribute to the continuous improvement of the operational efficiency of enterprises. Methods and methods for creating working groups in an enterprise have been studied. Innovative methods in the economy lead to a significant increase in labor productivity and the release of labor resources. The article discusses the methodology and flexible working methods and the benefits that can be obtained through innovation. The formation and creation of working groups is presented, the need for developing the personnel potential of JSC Perm Mashinostroitel Plant is substantiated. A lean manufacturing project is described to reduce production losses in product release.

Eliminating Non-Value-Added Activities and Optimizing Manufacturing Processes Using Process Mining: A Stock of Challenges for Family SMEs

Family small and medium enterprises (FSMEs) differ from non-family SMEs regarding leadership type, human resource management practices, innovation orientation, change management, information and communication technology deployment, process maturity, and resource availability. These differences present challenges when leading any change. Process mining (PM) tools can optimize process value and eliminate non-added-value activities in FSMEs based on “Event Logs”. The present study investigates how a PM project is implemented in an FSME operating in the agri-food sector, focusing on challenges faced in every project phase to extract the most appropriate process that eliminates all sources of waste and bottleneck cases. Drawing upon the L*Lifecycle methodology combined with quality and lean management tools such as the fishbone diagram, Pareto diagram, and overall equipment efficiency (OEE), this study applied a PM project to a manufacturing process for an FSME operating in the agri-food sector. To achieve theoretical production capacity (TPC) and customer satisfaction, the method was analyzed and optimized using Disco and ProM toolkits. The results analysis using Disco and ProM toolkits gave clues about the organizational and technical causes behind the manufacturing process’s inefficiency. First, OEE showed that the studied FSME is struggling with equipment availability. Then, the implementation of the L*Lifecycle methodology allowed for the identification of five critical causes. An action plan to eliminate causes was proposed to the FSME managers.

Lean HRM practices in manufacturing SMEs: exploring the interplay among the influencing factors

PurposeThis study aims to investigate the implementation of lean human resource management (HRM) practices in manufacturing small- and medium-sized enterprises (SMEs) and explore how various factors interact to influence their successful adoption. By exploring the interplay among these factors, the research seeks to identify key drivers affecting the adoption of lean HRM in manufacturing SMEs. Ultimately, the research intends to provide insights that can guide organisations, practitioners and policymakers in effectively implementing lean HRM practices to enhance operational efficiency, workforce engagement and competitiveness within the manufacturing SME sector.Design/methodology/approachThe study combined total interpretive structural modelling (TISM) and Matrice d'Impacts Croisés Multiplication Appliquée à un Classement (MICMAC) analysis. TISM helped in understanding the hierarchical relationship among different factors influencing lean HRM implementation, whereas MICMAC analysis provided insights into the level of influence and dependence of each factor on others.FindingsThe research revealed that “top management support” emerged as the most independent factor, indicating that strong support from top management is crucial for initiating and sustaining lean HRM practices in manufacturing SMEs. On the other hand, “employee involvement and empowerment” was identified as the most dependent factor, suggesting that fostering a culture of employee engagement and empowerment greatly relies on the successful implementation of lean HRM practices.Research limitations/implicationsWhile the study provided valuable insights, it has certain limitations. The research was conducted within the specific context of manufacturing SMEs, which might limit the generalizability of the findings to other industries. Expert opinions introduce subjectivity in data collection. Additionally, the study may not cover all critical factors, allowing room for further exploration in future research.Practical implicationsThe findings have practical implications for manufacturing SMEs aiming to implement lean HRM practices. Recognising the pivotal role of top management support, organisations should invest in cultivating a strong leadership commitment to lean HRM initiatives. Furthermore, enhancing employee involvement and empowerment can lead to better adoption of lean HRM practices, resulting in improved operational efficiency and overall competitiveness.Originality/valueThis research contributes to the field by offering a comprehensive exploration of the interplay among factors influencing lean HRM implementation. The use of TISM and MICMAC analysis provides a unique perspective on the relationship dynamics between these factors, allowing for a nuanced understanding of their roles in the adoption of lean HRM practices in manufacturing SMEs. The identification of “top management support” as the most independent and “employee involvement and empowerment” as the most dependent factors adds original insights to the existing literature.

An advanced approach to operational quality evaluation for industry-finance integration enterprises based on integrated interval-valued intuitionistic fuzzy multi-attribute decision making

With the acceleration of economic globalization, enterprises are facing fierce competition and huge challenges, requiring deep financial management transformation. In this context, the integration of industry and finance has gradually demonstrated extremely important value. The integration of industry and finance can not only effectively improve the efficiency of financial management, prevent business risks, and improve operational efficiency, but also enhance the comprehensive ability of enterprise financial management, providing a more flexible, transparent, and efficient financial management system for enterprises. The operational quality evaluation of industry-finance integration enterprises under lean management accounting is a multiple-attribute decision-making (MADM). In this paper, some calculating laws on IVIFSs, Hamacher sum, Hamacher product are introduced, and the interval-valued intuitionistic fuzzy Hamacher interactive power averaging (IVIFHIPA) technique is proposed based on the interval-valued intuitionistic fuzzy (IVIF) Hamacher interactive weighted averaging (IVIFHIWA) technique and power average (PA) technique. Meanwhile, some ideal properties of IVIFHIPA technique are studied. Then, the IVIFHIPA technique is employed to cope with the MADM under IVIFSs. Finally, an example for operational quality evaluation of industry-finance integration enterprises under lean management accounting is employed to test the IVIFHIPA technique. Thus, the main research aim of this paper is concluded as follows: (1) the IVIFHIPA technique is constructed based on IVIFHIWA technique and classical power average (PA) technique; (2) the IVIFHIPA technique is put forward to cope with the MADM under IVIFSs; (3) an empirical example for operational quality evaluation of industry-finance integration enterprises under lean management accounting has been put forward to show the IVIFHIPA technique.

Lean Manufacturing Assessment: Dimensional Analysis with Hesitant Fuzzy Linguistic Term Sets

Lean Manufacturing has become, in recent years, one of the most important philosophies for improving production and organizational systems. The literature shows that Hesitant Fuzzy Linguistic Terms Sets (HFLTSs) are highly capable of manipulating the uncertainty that the judgments made by evaluators carry and that they are subject to their perception, especially when used in combination with multicriteria decision making (MCDM) for the measurement of indicators in this type of system, as well as their general performance. However, it is still of interest to researchers to develop techniques and instruments that facilitate the measurement of the results obtained after applying this philosophy in organizations. This article proposes a model for the evaluation of the Lean Manufacturing performance through the Analytic Hierarchy Process (AHP) and Dimensional Analysis (DA) using HFLTSs. The results obtained show that the proposed model is a solid tool for the evaluation of Lean Manufacturing systems from a different perspective and that it can be integrated into the issuance of evaluations in a better way by considering human subjectivity. At the same time, it offers a strategy to create priorities in the action plans that Lean system managers propose after evaluating. However, it is important to apply the proposed model to multiple organizations and analyze the results obtained to maximize its benefits.

Application of lean Management Principles in Hospitals in Slovakia

Introduction: Healthcare worldwide is struggling with many problems that have been escalated by the Covid-19 pandemic and the military conflict in Ukraine. The gap between the possibilities and the needs in the provision of health services is opening more and more. Therefore, it is necessary to look for ways to streamline processes at the level of the hospitals themselves and their management. Research aim and objectives: The aim of the research was to examine the mutual connections between the use of lean management principles and the ratings of hospitals in the Slovak Republic and to identify the influence of external and internal factors in this relationship. The sample consisted of 175 managers from 35 hospitals. Methods: To verify the hypotheses, the SEM method was used in the Smart Pls 3.3 software at a significance level of 0.05. Results: We discovered that there is a statistically significant connection between the use of lean principles and hospital ratings. If other variables enter the model, the overall effect of the mentioned variables is significantly increased. The stakeholder demands variable has a significant mediating effect (β = 0.470; p=0.000). The social lean climate variable has a lower indirect effect in the Slovak environment (β = 0.291; p=0.000). Conclusion: Our research shows the unequivocal importance of applying the principles of lean management in healthcare. There is ever-increasing pressure to increase quality and improve process efficiency from various stakeholders as well as pressure from within hospitals.

The use of Selected Lean Management Tools for Analyzing Defects in Pistons for Internal Combustion Engines

The article presents the most significant material defects found in pistons for internal combustion engines, along with a graphical method of categorization using a Pareto-Lorenz chart. For the top three defects (constituting approximately 80% of all issues), a slightly different Ishikawa chart was employed to identify the causes behind their occurrence. Remedial actions were proposed, to be implemented primarily within the interoperative quality control of piston casting. It was concluded that it is crucial to prevent the excessive iron content in the alloy used for alfin inserts (AS9 alloy), particularly for cast iron ring carriers. The research was conducted in collaboration with Federal-Mogul company in Gorzyce (F-MG), one of the largest piston foundries in Poland.

Innovative Education Method for a More Effective, Faster, and Valued Training in Radiation Therapy Treatment Planning

Because of the automation of radiation therapy, competencies of radiation technologists (RTTs) change, and training methods are challenged. This study aims to develop, and pilot test an innovative training method based on lean management principles. A new training method was developed for lung cancer treatment planning (TP). The novelty is summarized by including a stable environment and an increased focus on the how and why of key decision making. Trainees have to motivate their decisions during TP process, and to argue their choices with peers. Six students and 6 RTTs completed this training for lung cancer TP. Effects of the training were measured by (1) quality of TP, using doses in organs at risk and target volumes, (2) perceived experiences (survey), measured at baseline (T0); after peer session (T1); and 6 months later (T2). Finally, training throughput time was measured. At T0, RTTs showed a larger intragroup interquartile range (IIR) (2.63Gy vs 1.51Gy), but lower mean doses to heart and esophagus than students (6.79Gy vs 8.49Gy; 20.87Gy vs 24.62Gy). At T1, quality of TPs was similar between RTTs and students (IIR: 1.39Gy vs 1.33Gy) and no significant differences in mean dose to heart and esophagus (4.48Gy vs 4.69Gy; 17.75Gy vs 18.47Gy). At T2, students still performed equal to RTTs (IIR: 1.07Gy vs 1.45Gy) and achieved lower maximum dose to esophagus (44.75Gy vs 46.45Gy). The training method and peer sessions were experienced positive: at baseline (T0): 8 score on a scale 1-10, directly after the peer sessions; (T1): 8 by the students and 7 by the RTTs, after 9 months; (T2): 9 by the students and 7 by the RTTs. Training throughput time decreased from 12 to 3 months. This training method based on lean management principles was successfully applied to training of RTTs for lung cancer TP. Training throughput time was reduced dramatically and TP quality sustained after 6 months. This method can potentially improve training efficiency in diverse situations with complex decision-making.

Lean vs agile project management in construction: impacts on project performance outcomes

PurposeThe present research aims to investigate how lean project management (LPM) and agile project management (APM) affect project performance outcomes in the construction sector in Jordan. This study focuses on six key project performance outcomes, namely cost, time, quality, client satisfaction, innovation and responsiveness.Design/methodology/approachThe present study employed a quantitative approach to achieve the research objectives. Accordingly, a multi-item survey questionnaire was prepared to gather data from 392 project managers from construction companies in Jordan. The study’s model showed acceptable levels regarding reliability, validity, fit indices and discriminant validity. In order to test the hypotheses of this study, path analysis was employed using Amos 24.0 software.FindingsLPM demonstrated a remarkably high positive impact on cost performance. It also positively affected quality performance and client satisfaction. However, LPM insignificantly affected time, innovation and responsiveness performance measures. On the other hand, APM showed a notably high positive impact on innovation and responsiveness. The findings also revealed that APM positively impacted quality performance and client satisfaction. In addition, APM negatively impacted cost performance and insignificantly impacted time performance.Originality/valueThis study is one of the first comprehensive studies to empirically examine the impact of both LPM and APM on various project performance outcomes in the construction industry in the context of a developing country. It reveals some similarities and differences between LPM and APM with regard to their impacts on project management outcomes. The findings are expected to guide managers in selecting the appropriate project management approach based on the desired performance outcomes. Accordingly, it offers important implications for project managers in construction companies.

The implementation of lean management in reducing waste in the emergency department

Emergency Department (ED) is the frontliner unit of the hospital which becomes the entry door for emergency patients who need quick and efficient treatment. Prolonged doctor’s response time results in complaints, patients feel neglected, and affect the quality of service in the emergency room. This study aims to identify waste in emergency department services and to formulate recommendations for improvement. Methods used in this study is action research. , n=10; emergency room patients/caretakers, n=10. Data were taken through in-depth interviews, data was recorded, transcribed verbatim, and content analysis was carried out. The results of this study found 4 themes; literacy and expectations of health service of waste; complexity of inhibitory factors of services; as well as potential service improvements from supporting factors. There are four types of waste including waiting time, overprocessing, motion, unnecessary inventory, and the trial carried out was shown that it can shortened the doctor’s response time by average of 1 minute 29 seconds 82 . Lean implementation is able to found waste that can be eliminated. It takes commitment from hospital staff and management to always improving and continuously evaluating the service system.

Research on the construction of information-based nursing quality control system based on deep learning model under the lean perspective.

In order to improve nursing quality management and protect patient medical safety, it is necessary to change the default mode and completely integrate information technology and nursing quality control utilising lean management. A database was created, the nurse quality control scoring standard was entered into the computer and after the inspection, and various inspection reports were entered into the computer to precisely and promptly preserve data. The computer was then utilised to precisely assess the intensity and quality of nursing work, compute, count, and analyse the stored data, output the quality of nursing work in each department as a report, and adopt lean management for the gathered issues. To reach the objective of raising nursing quality, data analysis makes it simple to identify flaws and consistently strengthen the weak points. In order to create an information-based nursing quality control system with a simple and effective method as well as results that are scientific and objective, lean management is brought into the construction process.

The Application of Lean Management Concept in Preschool Education Management

The Application of Lean Management Concept in Preschool Education Management

Sejahtera Ulu al-albab with 5S at Senyum Printing Enterprise

Senyum Printing Enterprise, under the leadership of Encik Asri, exemplifies the transformative power of the 5S methodology in lean management. Over two decades, Senyum evolved from traditional offset printing to adopting a digital-focused approach, adapting to changing technologies and consumer demands. Encik Asri's leadership effectively embraced the 5S principles (Sort, Set in Order, Shine, Standardize, Sustain), fostering an environment of efficiency, quality, and continuous improvement. This case study explores how Senyum balanced traditional and digital printing methods, adopted eco-friendly practices, confronted online competition, and diversified its services. Encik Asri's approach not only ensured business resilience during economic fluctuations but also instilled a culture of 'sejahtera ulu al-albab'—a state of well-being and wisdom—reflecting a holistic approach to business and personal growth.

Using Kanban to Improve Indonesian Health Coverage Patient Task Id at Astrini Hospital Wonogiri

Introduction: Hospital is a complex industry organization comprises providers, therapies, physical location, technology and innovation. Digital transformation from Indonesian Health Coverage making us to give their patient excellence health service. For maintain our team to give patient best quality service excellence, we aplicated one of tool lean management such as kanban Purpose: to see either kanban is effective way to evaluate and improve our quality service delivery Method: We made kanban board from discussion within our team include, director, head divison, manager and staff. After we settle it, we choose which item in backlog going to in progress for first week until foruth week. we done it one by one and if there blocked that we can't achive about the item in backlog collum we will move it to blocked colloumn. Result: As lean management philosophy, we must correct our process and eliminate waste. Under supervising. from 30 October - 6 november 2023 our score just 38 -39%. after 4 weeks use kanban, our score imprvoe to above 90%. We make change in our workflow and it's an effective way. Conclusion: Kanban with kanban board is one of many tool in lean management to improve our product. They can be done in healthcare industry. Lean is recognised as a systematic approach, it will improve about efficiency and effectivity by eliminating waste and pursuing perfection with minimal resources.