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This paper aims to model the performances of frames structures by comparing the predictions of ordinary control concrete (CC) and concretes reinforced by fibers. Two types of steel fibers were used in this work, industrial steel fibers (ISF) and tire-reclaimed fibers obtained by cutting virgin steel tire-cord to 50 mm, noticed virgin steel fibers (VSF). In total, 3% of VSF are used. The results obtained in this paper clearly show the contribution of fibers in improving the global and local behavior of the frames structures. VSF gives the same or better overall behavior as the use of industrial fibers for the same percentage of fibers, with the advantage that VSF contributes to the protection of the environment and limit the wastage of steel.

This work was carried out using the commercial finite element code Abaqus/Explicit. The behavior of the different concretes used in this study was modeled by the concrete damage plasticity (CDP) constitutive law. The methodology adopted to complete this work consisted in identifying, by calibration of the available experimental results with the numerical predictions, the parameters of the corresponding CDP model for each of the concretes used in this work. To this end, the authors have successively identified the CDP parameters for the CC-V (control concrete used by Vecchio and Emara, 1992) used in frame structure (R + 1). Subsequently, the CDP parameters of the CC-T (control concrete used by Tlemat, 2004), the CVSF (concrete with virgin steel fibers) and the CISF-1 (concrete with industrial steel fibers type 1, ISF-1) are identified using the experimental results of beams under bending tests. Once the model parameters were determined for each concrete, the authors conducted a series of simulations to show the benefit of introducing claimed and industrial fibers in frame structure (R + 1) and (R + 2). This approach recommends the use of concrete reinforced with steel fibers, mainly 6% by mass of VSF and ISF-1, in place of ordinary concrete in new construction to increase the resistance of structures and contribute, if applicable, to the protection of the environment.

The main findings of this study can be summarized by: the strength and ductility of the frames structures made of concrete fiber are significantly increased. The use of tire-reclaimed steel fibers (VSF) gives the same or better overall behavior as the use of industrial fibers. In addition to their good mechanical contribution, the tire-reclaimed fibers contribute to the protection of the environment and limit the wastage of steel. The use of fibers reduces the cracking zones in concrete fiber frames structures. The usefulness of distinguishing the interstory displacement limits set by codes, in particular, uniform building code (UBC-97), for ordinary concretes and concrete reinforced with fibers is addressed.

The contribution of tire-reclaimed and industrial fibers on the strength and ductility of reinforced concrete-frames structures is addressed. The use of tire-reclaimed steel fibers gives the same or better overall behavior as the use of industrial fibers, the tire-reclaimed fibers having the advantage of contributing to the protection of the environment and limiting the wastage of steel. The paper also points to the usefulness of distinguishing the interstory displacement limits set by codes, in particular UBC-97, for ordinary concrete and concrete reinforced with fibers, in accordance to the predictions of the capacity curves.

A systems perspective of waste management allows an integrated approach not only to the five basic functional elements of waste management itself (generation, reduction, collection, recycling, disposal), but to the problems arising at the interfaces with the management of energy, nature conservation, environmental protection, economic factors like unemployment and productivity, etc. This monograph separately describes present practices and the problems to be solved in each of the functional areas of waste management and at the important interfaces. Strategies for more efficient control are then proposed from a systems perspective. Systematic and objective means of solving problems become possible leading to optimal management and a positive contribution to economic development, not least through resource conservation. India is the particular context within which waste generation and management are discussed. In considering waste disposal techniques, special attention is given to sewage and radioactive wastes.

The purpose of this paper is to apply the goals and processes of reverse logistics related to disposal and renewal to an industry example, in this case, the tufted carpet manufacturing industry. With an industry-wide coalition, the Carpet America Recovery Effort (CARE), the carpet industry offers lessons for other industries on how to create new products from waste, how to develop systems to process this waste, how to encourage the development of infrastructure for reprocessing and how to remove barriers to recovery. A major part of the US floor covering cluster is headquartered around Dalton, Georgia. The industry has formed a coalition to divert manufactured carpet from landfills and find other uses for used carpet. This industry-wide coalition, known as the Carpet America Recovery Effort, offers many lessons for other industries on creating new products from waste, developing systems to process this waste, encouraging the development of infrastructure for reprocessing and removing barriers to recovery.

Academics have proposed several frameworks for examining reverse logistics. In this study, the framework developed by de Brito and Dekker (2004) is utilized because it focuses on essential forces in reverse logistics, asking four simple questions: Why? What? How? and Who? To this list, is added a question: Where? This modified framework is applied to the carpet manufacturing industry, focusing on post-consumer carpet.

The carpet industry is becoming a model for developing renewal supply chains that take waste products and create new ones. Although disposal remains the largest part of the end-of-use supply chain for carpet, this is changing, though not rapidly enough to suit the industry.

This case focuses on what the industry is currently doing and on the impediments it has encountered in developing these chains. Renewal chains may well dominate the future of reverse logistics in the industry, but much work remains. The paper concludes with a discussion and areas for future research.

The purpose of this paper is to present the prerequisites for a part-out-based spares provisioning (PBSP) programme during the phase-out of an aircraft fleet. Furthermore, associated key decision criteria are identified and a framework for the phase-out management process is presented.

Once a decision has been taken to phase-out an aircraft fleet, a number of routines for operations, maintenance and storage are affected and new tasks and functions must be introduced before initiating the actual parting-out process. A decision-making system and a management framework is needed to manage spares planning during the end-of-life phase to ensure availability at minimum cost and to ensure a manageable risk of backorders.

For PBSP programme during the phase-out of an aircraft fleet to succeed and be cost-effective, a number of linked processes, tasks and decisions are required, e.g., those included in the framework proposed in this paper (see Figure 3). A successful implementation of PBSP also requires that these processes and tasks are carried out in a timely manner and that the communications between the concerned parties are prompt, clear and direct. One experience from the studied case is that close and trustful contacts and cooperation between the operator and maintenance provider(s) will greatly facilitate the process.

Although the PBSP method is fairly commonly applied within both the military and the civilian sector, somewhat surprisingly very literature has been published on the subject. Indeed, remarkably little has been published on any aspects of maintenance during the end-of-life period.

In those frightening years between the two Wars and governments in France came and went with dismal frequency, it used to be said that any French Government which permitted food prices to rise had no chance whatever of surviving, and the result was that food was bountiful and incredibly cheap. Times have changed dramatically but not the attitude of people to the price and availibility of food and, in particular of political control; this is very much the same as always. Mostly, it revolves around the woman and what she sees as an abuse, greed and taking mean advantage of prevailing conditions and, make no mistake, this will be reflected in the political field; in the way she votes. It has happened in previous elections; it will happen in even greater degree in the next election and, although not decisive, it can have a not insignificant impact. None know better than the housewife how meaningless is the smug talk of the politicians when it comes to food prices. Their attitude may not have been the main factor in throwing out the last Conservative Government; this was undoubtedly the fear that their continuance in office would result in widespread strikes and the serious effect these upheavals have on food prices (and other household necessit ies), but the votes of woman were an unimportant contribution. As it was, it mattered little to the muscle men of the trade unions which party is in power. Women's talk around the shops and supermarket's, up and down the High Street to‐day is one long grumble and disillusionment with politicians generally.

In 1978 the plastic bottle was introduced nationwide. In the thirteen years since that historic (and some say environmentally devastating) occasion, the consumer increasingly has embraced plastic packaging. Each American uses about 190 pounds of plastic per year, according to Earthworks Group, and about 60 pounds of it is discarded within minutes or seconds after opening. The plastic bottle is king. American consumers use 2.5 million plastic bottles every hour.

This paper aims to investigate sustainability-led innovation, focusing on the interplay between product and process innovation for sustainability goals and the underlying supplier–customer relationships. Thus, the paper delves into sustainability-led innovation and how it affects supplier–customer relationships, and vice versa, thus providing a twofold perspective.

The textile industry is the empirical context of this study, which is exploratory research based on in-depth, semi-structured interviews with entrepreneurs, managers and experts in the textile industry.

In the textile industry, sustainability-led product innovation concerns mainly product durability and performance, product recyclability and the use of waste for new product development. Process innovation deals with circular economy, traceability and water and chemical use minimization. The paper also shows how sustainability-led innovation is implemented in more technical terms and regarding supplier–customer relationships.

The paper adopts an original perspective on how processes take place in the relationships between suppliers and customers, where there is no dominance of one actor, but innovation emerges from interdependence and interaction. Such perspective allows to provide an in-depth analysis of the supplier–customer relationships and underlying dynamics that affect sustainability-led innovation; moreover, the authors study how such innovation impacts supplier–customer relationships and the underlying relational dynamics. The value of the paper also stands in delivering a real representation of the innovation processes grounded in the textile industry.

The case is set in Northeast Wisconsin, where the two largest industries are dairy farming and papermaking. Dairy farms have a continual need for bedding material for cows, and Lynn Heemeyer recognized an opportunity for a new bedding material: a waste byproduct of recycled paper. The case includes the progression of Heemeyer’s venture – Alternative Animal Bedding (AAB) – from the idea phase, to initiation and growth, to near collapse, recovery, and renewed growth. By September 2015, AAB was at a turning point as the sales were increasing, and Jess, Lynn’s daughter, had joined the business. Jess’s challenge: how best to grow the business.

Information for the case was gathered via interviews with Jess Heemeyer; she also provided some supporting materials. Jess Heemeyer is a former student of the author and a graduate of the institution that employs the author. Additional information for the case was collected from publicly available sources, as referenced. The identification of the college was not included in the case.

The case is best suited for use in an undergraduate or graduate entrepreneurship course or courses that include entrepreneurship as a topic. The case fits well with the topics of alertness and opportunity identification, and the innovation process. It can also be used to illustrate critical factors for new-venture development and growth. In addition, the benefits and challenges related to family-based entrepreneurial ventures can be included as a learning objective.

This case draws upon and illustrates the concept of alertness (Kirzner, 1973) which was further developed by Tang et al. (2012) when they identified three dimensions of alertness: “scanning and searching for information, connecting previously disparate information, and making evaluations on the existence of profitable business opportunities” (p. 77). Also, the case follows the creativity-based model of opportunity recognition developed by Corbett (2005) that uses experiential learning theory. Finally, students are asked to apply Ansoff’s Growth Matrix (Ansoff, 1957) to identify and evaluate the growth options available to the business owners and managers. As an optional pasture for discussion, a stewardship theory perspective can be applied to examine the family business aspect of this case (see Eddleston and Kellermanns, 2007).

The increased awareness of global environmental threats like climate change has created an upsurge of interest in low embodied carbon building materials for green building delivery. Though the literature advocates for the use of hemp-based building materials, there is no evidence of studies to explore its potential use in Ghana. Therefore, this study explores the potential factors that limit the adoption of hemp as an alternative sustainable material for green building delivery in Ghana.

A structured questionnaire was used to solicit the views of built environment professionals operating in construction, consulting and developer firms. The questions were developed through a comparative review of the related literature and complemented with a pilot review. Data were analysed via descriptive and inferential statistics.

On the average, the majority of the respondents showed a moderate level of awareness of hemp and its related uses in the construction industry. Also, certain key factors like the perceived association of hemp with marijuana, lack of expertise in the production of hemp-related building materials, farmers not getting the needed clearance for the cultivation of hemp, lack of legislation by the government in the legalisation of hemp and the inadequate knowledge of consumers on the benefits of hemp-based building materials were identified as potential limitations to the adoption of hemp as an alternative sustainable material for green building delivery.

The findings from this study provide insights into a less investigated area in sub-Saharan Africa and further provide new and additional information to the current state-of-the-art on the potential for the use of hemp in the building construction sector.

The purpose of this study is to identify retailers selling sustainable apparel goods on the internet and examine their sustainable initiatives in the supply chain based on the United Nation's Global Reporting Initiative (GRI), one of the most widely used sustainability reporting guidelines.

A total of 156 sustainable apparel websites were content analyzed based on presence or absence of the website contents. A systematic coding scheme was developed based on previous research on the sustainability of the apparel industry and the GRI.

Findings of this study support the GRI as a useful framework to assess sustainability in online apparel retailers. The most commonly addressed aspects of the GRI that were addressed by companies in this study were the environmental and social aspects. Few sustainable apparel retailers on the internet made initiatives in all three areas of sustainability addressed in the GRI.

This study provides general characteristics of websites as well as endeavours along the supply chain to illustrate a full overview of sustainable apparel retailers online. The initiatives discussed in this study are meant to serve as a guide and inspiration for future researchers, companies and consumers.