scholarly journals Lean & Green on Industry 4.0 Context – Contribution to Understand L&G Drivers and Design Principles

Author(s):  
Lenin John ◽  
Manuel Sampayo ◽  
Paulo Peças

The purpose of this paper is to demonstrate how the implementation of Lean & Green (L&G) in an Industry 4.0 (I4.0) environment can enhance the potential impact of the L&G approach and help manufacturing companies moving towards higher operational and sustainable performances. The research work developed here shows that although a proper definition of L&G is neither exposed worldwide nor explicitly implemented under that name, the current industrial firms are deeply concerned about the demanding challenge of keeping businesses flexible and agile without forgetting strategies to minimize the acceleration of climate change. So, one contribution of this paper is the identification and characterization of L&G drivers and design principles, supporting a robust and well-informed L&G systems implementation. As inferred from the research work, this challenge demands high quality and updated data together with assertive information. Thus, the implementation of L&G in I4.0 contexts is the answer to overcome the identified barriers. Likewise, an L&G system contributes to overcoming the challenges of I4.0 implementation regarding the triple bottom line sustainability concept. Consequently, another contribution of this paper is to depict why an L&G system performs better in the I4.0 context.

2014 ◽  
Vol 13 (3) ◽  
pp. 232-245
Author(s):  
Bethel Uzoma Ihugba

Purpose – This paper aims to examine the effectiveness of the legal response by Nigeria to the sustainable management and use of revenue from the extractive industry in its enactment of the Nigeria Extractive Industry Transparency Initiative (NEITI) Act 2007. It hopes to contribute to the development of Nigeria’s and other countries’ Extractive Industry Transparency Initiative-based regulations or policies intended for the sustainable exploitation and management of revenue from the extractive industry. Design/methodology/approach – The paper is qualitative and uses critical analysis to explore the potentials and limits of the NEITI Act vis-à-vis its promises and capabilities. The article concentrates on the analysis of the sections providing for the objectives of the Act, its functions, its auditing and reporting requirements and timeline for publications of audits and reports for purposes of transparency, accountability and public debate. Findings – The paper finds that although the intendment of the Act appears positive, the sections providing for the achievement of its objectives and functions are bedeviled with several ambiguities, which undermine its effectiveness. Research limitations/implications – The NEITI Act is as yet neither a basis for the prosecution of any individual and/or organization nor been legally challenged in court. As such there is no case law to exemplify the practical application of its provisions. However, logical analysis and review of the Act suggests that more needs to be done to increase its effectiveness. Practical implications – The paper makes the case for the proper definition of terms, stipulation of clear timelines and creation of enforcement functions in legislations, especially in laws that aim to regulate potential irregularities that may provide huge financial rewards for perpetrators and/or undermine a society’s socio-economic development. Originality/value – This paper boldly questions the effectiveness and functionality of the NEITI Act 2007 and lays out a framework for its improvement. Also due to serious dearth of scholarly work on NEITI Act 2007, this paper is the first research work to explore the effectiveness of the NEITI Act 2007 from a legal perspective.


1990 ◽  
Vol 22 (3-4) ◽  
pp. 291-298
Author(s):  
Frits A. Fastenau ◽  
Jaap H. J. M. van der Graaf ◽  
Gerard Martijnse

More than 95 % of the total housing stock in the Netherlands is connected to central sewerage systems and in most cases the wastewater is treated biologically. As connection to central sewerage systems has reached its economic limits, interest in on-site treatment of the domestic wastewater of the remaining premises is increasing. A large scale research programme into on-site wastewater treatment up to population equivalents of 200 persons has therefore been initiated by the Dutch Ministry of Housing, Physical Planning and Environment. Intensive field-research work did establish that the technological features of most on-site biological treatment systems were satisfactory. A large scale implementation of these systems is however obstructed in different extents by problems of an organisational, financial and/or juridical nature and management difficulties. At present research is carried out to identify these bottlenecks and to analyse possible solutions. Some preliminary results are given which involve the following ‘bottlenecks':-legislation: absence of co-ordination and absence of a definition of ‘surface water';-absence of subsidies;-ownership: divisions in task-setting of Municipalities and Waterboards; divisions involved with cost-sharing;-inspection; operational control and maintenance; organisation of management;-discharge permits;-pollution levy;-sludge disposal. Final decisions and practical elaboration of policies towards on-site treatment will have to be formulated in a broad discussion with all the authorities and interest groups involved.


2015 ◽  
Vol 31 (4) ◽  
pp. 389-408 ◽  
Author(s):  
Marcela M. Porporato

ABSTRACT This case, based on a real-life situation of how logistics costs function in daily operations, aims to provide students with the opportunity to understand how logistics costs are calculated and how the inter-organizational nature of these costs affects the profitability of two companies. The case hinges on understanding cost behavior (fixed and variable) and on management control systems design. Although logistics costs represent a small fraction of total costs in manufacturing companies, they can negatively affect the bottom line if left unattended. Students are presented with data relating to a three-year project in the automotive industry that shows that the project has been experiencing a sustained increase in costs that has eroded its profit margin. While it appears that logistics costs are the problem, it cannot be verified until the contracts are studied. In addition, the financial- and contract-related data provided are sufficient to extend the profitability analysis to the provider of logistics services. This case is suitable for management accounting courses at the master's or advanced undergraduate level; it has been tested and well received by students who want to gain a greater understanding of logistics costs—their nature, behavior, possible containment strategies, and inter-organizational effects. Data Availability: Some of the data are from public sources, but the logistics contracts and cost schedules are private; the confidentiality agreement with the two companies requires masking certain details and modifying the numeric data.


1982 ◽  
Vol 47 (3) ◽  
pp. 766-775 ◽  
Author(s):  
Václav Kolář ◽  
Jan Červenka

The paper presents results obtained by processing a series of published experimental data on heat and mass transfer during evaporation of pure liquids from the free board of a liquid film into the turbulent gas phone. The data has been processed on the basis of the earlier theory of mechanism of heat and mass transfer. In spite of the fact that this process exhibits a strong Stefan's flow, the results indicate that with a proper definition of the driving forces the agreement between theory and experiment is very good.


2021 ◽  
Vol 1 ◽  
pp. 2571-2580
Author(s):  
Filip Valjak ◽  
Angelica Lindwall

AbstractThe advent of additive manufacturing (AM) in recent years have had a significant impact on the design process. Because of new manufacturing technology, a new area of research emerged – Design for Additive Manufacturing (DfAM) with newly developed design support methods and tools. This paper looks into the current status of the field regarding the conceptual design of AM products, with the focus on how literature sources treat design heuristics and design principles in the context of DfAM. To answer the research question, a systematic literature review was conducted. The results are analysed, compared and discussed on three main points: the definition of the design heuristics and the design principles, level of support they provide, as well as where and how they are used inside the design process. The paper highlights the similarities and differences between design heuristics and design principles in the context of DfAM.


Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1079
Author(s):  
Victor Ciribeni ◽  
Juan M. Menéndez-Aguado ◽  
Regina Bertero ◽  
Andrea Tello ◽  
Enzo Avellá ◽  
...  

As a continuation of a previous research work carried out to estimate the Bond work index (wi) by using a simulator based on the cumulative kinetic model (CKM), a deeper analysis was carried out to determine the link between the kinetic and energy parameters in the case of metalliferous and non-metallic ore samples. The results evidenced a relationship between the CKM kinetic parameter k and the grindability index gbp; and also with the wi, obtained following the standard procedure. An excellent correlation was obtained in both cases, posing the definition of alternative work index estimation tests with the advantages of more straightforward and quicker laboratory procedures.


2021 ◽  
Vol 1 ◽  
pp. 3149-3158
Author(s):  
Álvaro Aranda Muñoz ◽  
Yvonne Eriksson ◽  
Yuji Yamamoto ◽  
Ulrika Florin ◽  
Kristian Sandström

AbstractThe availability of new research for IoT support and the human-centric perspective of industry 4.0 opens a gap to support operators in unleashing their creativity so they can provide improvements opportunities with IoT technology. This paper presents a case-study carried out in four Swedish manufacturing companies, where four different workshops were facilitated to support operators in the conceptualization of manufacturing improvements with IoT technologies. The empirical material gathered during these workshops has been analyzed in five different reflective sessions and discussed in light of previous research from industry 4.0, operators, and IoT support. Results indicate that operators can collaboratively create conceptual IoT solutions and that expressiveness in communicating their ideas and needs using IoT technology is more relevant than technical aspects and details of their proposed IoT solutions. This technological expressiveness is identified as a necessary skill to be cultivated on the shop floor and can potentially contribute to making a more effective and socially sustainable industrial landscape in the future.


Drones ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 52
Author(s):  
Thomas Lee ◽  
Susan Mckeever ◽  
Jane Courtney

With the rise of Deep Learning approaches in computer vision applications, significant strides have been made towards vehicular autonomy. Research activity in autonomous drone navigation has increased rapidly in the past five years, and drones are moving fast towards the ultimate goal of near-complete autonomy. However, while much work in the area focuses on specific tasks in drone navigation, the contribution to the overall goal of autonomy is often not assessed, and a comprehensive overview is needed. In this work, a taxonomy of drone navigation autonomy is established by mapping the definitions of vehicular autonomy levels, as defined by the Society of Automotive Engineers, to specific drone tasks in order to create a clear definition of autonomy when applied to drones. A top–down examination of research work in the area is conducted, focusing on drone navigation tasks, in order to understand the extent of research activity in each area. Autonomy levels are cross-checked against the drone navigation tasks addressed in each work to provide a framework for understanding the trajectory of current research. This work serves as a guide to research in drone autonomy with a particular focus on Deep Learning-based solutions, indicating key works and areas of opportunity for development of this area in the future.


2021 ◽  
pp. 112972982198916
Author(s):  
Ton Van Boxtel ◽  
Mauro Pittiruti ◽  
Annemarie Arkema ◽  
Patrick Ball ◽  
Giovanni Barone ◽  
...  

The need for filtering intravenous infusions has long been recognized in the field of venous access, though hard scientific evidence about the actual indications for in-line filters has been scarce. In the last few years, several papers and a few clinical studies have raised again this issue, suggesting that the time has come for a proper definition of the type of filtration, of its potential benefit, and of its proper indications in clinical practice. The WoCoVA Foundation, whose goal is to increase the global awareness on the risk of intravenous access and on patients’ safety, developed the project of a consensus on intravenous filtration. A panel of experts in different aspects of intravenous infusion was chosen to express the current state of knowledge about filtration and to indicate the direction of future research in this field. The present document reports the final conclusions of the panel.


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