89,046 research outputs found
Lean and green – a systematic review of the state of the art literature
The move towards greener operations and products has forced companies to seek alternatives to balance efficiency gains and environmental friendliness in their operations and products. The exploration of the sequential or simultaneous deployment of lean and green initiatives is the results of this balancing action. However, the lean-green topic is relatively new, and it lacks of a clear and structured research definition. Thus, this paper’s main contribution is the offering of a systematic review of the existing literature on lean and green, aimed at providing guidance on the topic, uncovering gaps and inconsistencies in the literature, and finding new paths for research. The paper identifies and structures, through a concept map, six main research streams that comprise both conceptual and empirical research conducted within the context of various organisational functions and industrial sectors. Important issues for future research are then suggested in the form of research questions. The paper’s aim is to also contribute by stimulating scholars to further study this area in depth, which will lead to a better understanding of the compatibility and impact on organisational performance of lean and green initiatives. It also holds important implications for industrialists, who can develop a deeper and richer knowledge on lean and green to help them formulate more effective strategies for their deployment
A strategy for achieving manufacturing statistical process control within a highly complex aerospace environment
This paper presents a strategy to achieve process control and overcome the previously mentioned industry constraints by changing the company focus to the process as opposed to the product. The strategy strives to achieve process control by identifying and controlling the process parameters that influence process capability followed by the implementation of a process control framework that marries statistical methods with lean business process and change management principles. The reliability of the proposed strategy is appraised using case study methodology in a state of the art manufacturing facility on Multi-axis CNC machine tools
Shipbuilding 4.0 Index Approaching Supply Chain
The shipbuilding industry shows a special interest in adapting to the changes proposed by
the industry 4.0. This article bets on the development of an index that indicates the current situation
considering that supply chain is a key factor in any type of change, and at the same time it serves as a
control tool in the implementation of improvements. The proposed indices provide a first definition
of the paradigm or paradigms that best fit the supply chain in order to improve its sustainability and
a second definition, regarding the key enabling technologies for Industry 4.0. The values obtained
put shipbuilding on the road to industry 4.0 while suggesting categorized planning of technologies
Facilitators and barriers to the integration of healthcare service and building design
Service design research recognises the importance of infrastructure design in the
achievement of streamlined service delivery. Although research about service design
and building design is abundant, very little is known about the integration of these
processes. Therefore, this research aimed at identifying facilitators and barriers to the
integration of service and building design processes. To this end, the initial results
from a historical investigation of the redevelopment of a hospital in Salford, UK were
used to identify facilitators and barriers to the integration of service and building
design. Data was collected through interviews, document analysis and a workshop.
Initial results present internal and external factors related to the design process
generating barriers to integration of service and building design
Mediation Effect of Lean: A Bidirectional Synergetic Relationship with SCM for Higher Operational Performance
Competitive plants focus their efforts on reducing manufacturing costs and waste along their production chains. Hence, manufacturing programs with important practices and methodologies such as lean, JIT, TPM, and Kaizen have been embraced. However, an empirical investigation of simultaneous use of several manufacturing programs representing multiple facets of lean is lacking in the literature. Various studies have found that some supply chain management practices are bi-directionally related to lean, but its holistic measurement in relation to supply chain management is still lacking. Thus, this paper provides an evidence of mediation effect of lean from high performance manufacturing (HPM) project perspective in relation to supply chain management
Effects of the Interactions Between LPS and BIM on Workflow in Two Building Design Projects
Variability in design workflow causes delays and undermines the performance of building projects. As lean processes, the Last Planner System (LPS) and Building Information Modeling (BIM) can improve workflow in building projects through features that reduce waste. Since its introduction, BIM has had significant positive influence on workflow in building design projects, but these have been rarely considered in combination with LPS. This paper is part of a postgraduate research focusing on the implementation of LPS weekly work plans in two BIM-based building design projects to achieve better workflow. It reports on the interactions between lean principles of LPS and BIM functionalities in two building design projects that, from the perspective of an interaction matrix developed by Sacks et al. (2010a), promote workflow
The Role of Management Practices in Closing the Productivity Gap
There is no doubt that management practices are linked to the productivity
and performance of a company. However, research findings are mixed. This paper
provides a multi-disciplinary review of the current evidence of such a
relationship and offers suggestions for further exploration. We provide an
extensive review of the literature in terms of research findings from studies
that have been trying to measure and understand the impact that individual
management practices and clusters of management practices have on productivity
at different levels of analysis. We focus our review on Operations Management
(om) and Human Resource Management (hrm) practices as well as joint
applications of these practices. In conclusion, we can say that taken as a
whole, the research findings are equivocal. Some studies have found a positive
relationship between the adoption of management practices and productivity,
some negative and some no association whatsoever. We believe that the lack of
universal consensus on the effect of the adoption of complementary management
practices might be driven either by measurement issues or by the level of
analysis. Consequently, there is a need for further research. In particular,
for a multi-level approach from the lowest possible level of aggregation up to
the firm-level of analysis in order to assess the impact of management
practices upon the productivity of firms
Towards a lean model for production management of refurbishment projects, VTT Technology: 94
This is the Stage 3 Report for the ApRemodel project, which aims at improving
processes for multi-occupancy retrofit by generating a lean model for project delivery.
In this respect, a process-driven approach has been adopted to investigate
what can be done to improve the way that retrofits projects are delivered.
An initial literature review, focused on the management of refurbishment works,
revealed that the research on this matter is scarce. There are plenty of studies
related to the broad refurbishment area, however only a small number refer to the
way that those construction projects are delivered.
According to the literature, construction organisations have predominantly used
traditional methods for managing the production of refurbishment projects. The
problem is that those tools and techniques are not often appropriate to cope with
the complex characteristics inherent to construction projects, especially in the
case of refurbishments. Moreover, they have often not been based on a clear
theoretical foundation. As a result, numerous types of waste have been identified
in refurbishment projects such as waiting time, disruptions in performing tasks on
site, rework, among others. This has led to unsatisfactory project performance in
terms of low productivity, project delays, and cost overrun.
The first step towards better production management in refurbishment projects
is recognising the complexity of the sector in order to adopt the correct approach
to cope with this specific scenario. In this respect, lean construction is identified as
an appropriate way to deal with the complexity and uncertainty inherent in refurbishment
projects, given that this management philosophy fully integrates the
conversion, flow, and value views.
This document builds on the findings from the literature review as well as evidence
from case studies. Managerial practices based on lean construction principles
have presented successful results in the management of complex projects.
Case studies available in the literature report the feasibility and usefulness of this
theoretical foundation. Moreover, the evidence from these studies show considerable
potential for improving the management of refurbishment works.
A list of methods, tools, and techniques are identified. This report may be used
by construction refurbishment organisations and housing associations as a starting
point for improving the efficiency in managing production of refurbishment projects.
To this end, partnerships between industry and academia are strongly recommended.
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Although the usefulness of lean principles in complex projects is already
proved, further work is needed to check what practices are best for the respective
refurbishment context, as well as identifying enablers and barriers for practical
adoption. Furthermore, additional studies would be also necessary to better understand
the extent to which the implementation of lean philosophy might influence
performance of refurbishment projects.
This report should be seen as work in progress with much more to learn, as detailed
research work around the sustainable retrofit process in a lean way is further
developed
Eco‐Holonic 4.0 Circular Business Model to Conceptualize Sustainable Value Chain Towards Digital Transition
The purpose of this paper is to conceptualize a circular business model based on an Eco-Holonic Architecture, through the integration of circular economy and holonic principles. A conceptual model is developed to manage the complexity of integrating circular economy principles, digital transformation, and tools and frameworks for sustainability into business models. The proposed architecture is multilevel and multiscale in order to achieve the instantiation of the sustainable value chain in any territory. The architecture promotes the incorporation of circular economy and holonic principles into new circular business models. This integrated perspective of business model can support the design and upgrade of the manufacturing companies in their respective industrial sectors. The conceptual model proposed is based on activity theory that considers the interactions between technical and social systems and allows the mitigation of the metabolic rift that exists between natural and social metabolism. This study contributes to the existing literature on circular economy, circular business models and activity theory by considering holonic paradigm concerns, which have not been explored yet. This research also offers a unique holonic architecture of circular business model by considering different levels, relationships, dynamism and contextualization (territory) aspects
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