Papers by Keyword: Traceability

Abstract: Construction and demolition waste (CDW) accounted for almost 36% of total waste produced in the European Union in 2018. Growing recovery rates are achieved but mainly for low-value applications. Variable composition and characteristics undermine customers’ confidence who prefers primary materials with certified properties and at more competitive value/cost. Zero energy and waste targets are driving to rethink the waste value chain, necessitating a search for new technologies to reduce carbon emissions and waste volumes towards a more efficient and circular system. This paper presents an outline of the approaches to enhance CDW management that will be developed in the newly funded Horizon Europe project RECONMATIC. This project will develop digital and automated solutions to support advanced CDW management towards zero targets and will explore applications of technologies at different phases of the asset whole life cycle. Technical issues will be considered in aspects such as material segregation, pre-demolition audits, selective deconstruction, waste traceability procedures, as well as broader economical-societal issues such as business model, health & safety, sustainability, and technology readiness level. RECONMATIC aims to usher a paradigm change in CDW management by helping the construction industry taking a step change in circular economy development.

Abstract: The present study explores the environmental quality (natural and recycled content, recyclability, life cycle method) of a sample of certified construction products available in different database in Italy (Remade in Italy, Atlante dell’Economia Circolare, Observatory Recycle-Legambiente Report, Accredia). The results evidence the identification of a wide range of construction products with different certified recycled contents and Italian origin under the certification standard “Remade in Italy”. Moreover, 42% of the certified products rely on the use of LCA for the assessment of the environmental impacts, while 22% of certified products integrate the features of recycled content with the recyclability at the end-of-life. Overall, results show the role certifications may have in increasing the information available on products and their environmental quality, including their traceability in the reverse supply chain, becoming a potential driver for CE adoption and a wider development for such products.

Abstract: The paper focuses on Information and communication technologies (ICT) deployed by Logistics service providers (LSP), particularly for the monitoring and companies. Indeed, nowadays ICT are essential for any implementation of efficient traceability, notably for the outsourcing of logistics activities. This paper is structured around two parts: the first part presenting the state of the art in terms of outsourcing logistics activities and traceability. The second part concerns a comparative study combining a set of LSP operating in Morocco and those operating abroad through several criteria. These criteria include the services offered and the technology deployed for rigorous traceability. The comparative study will determine the profile of the LSP operating in Morocco and adopting an effective and efficient traceability strategy based on innovative technology.

Abstract: In order to satisfy upcoming needs for detailed traceability of products, components and manufacturing conditions, identification of every part is required. As for bulk goods applied marks are generally not appropriable due to variable costs, aggregation of individual parts manufactured under similar conditions to batches is carried out and these batches are identified and linked to information for tracking and tracing. Currently there is no standard for dividing bulk goods into batches. Hence, there are varying, company-specific approaches regarding rules for batch segregation and batch number definition. Thereby, transparency for subsequent stages of the supply chain is almost non-existent.In this paper we developed a method for batch segregation and number definition considering quality-related impacts. By identifying relevant influences and associated characteristics affecting events, basic parameters regarding segregation of batches can be found. As, especially in the automotive industry, FMEA and similar tools already are required, deriving this information is possible at low effort. Based on the factors identified, a meaningful batch ID may be generated including information on changes in particular parameters by encoding each parameter into the ID. While the overall objective should be outright informational transparency, sharing manufacturing data is not realistic in the short term. Therefore, our approach increases information sharing between members of the supply chain whilst protecting manufacturing know-how.The proposed systematic for batch IDs is supposed to enable subsequent participants in the supply chain to identify failure and scrap causes by communicating meaningful ID including relevant parameters. Hence, data analysis should be able to track down issues to changes in the manufacturing process at the supplier much faster and at lower effort than before. Additionally this may be a first step to pro-actively identify expectable quality issues due to information given in the ID and knowledge about correlation between different components and conditions with automated algorithms or some sort of artificial intelligence.

Abstract: Increasing the overall equipment effectiveness is a major task in order to further improve productive times and thereby increase energy efficiency. One main reason for ``energy waste" besides inefficient machinery is spending energy on production or assembly of ultimately rejected parts. In order to decrease this kind of waste, traceability can be applied for identifying components and observing related parameters for detecting quality deviations in early states.Here, we show the required identification technologies in order to establish a traceability concept for assembly of discrete units. Evaluating existing techniques regarding their applicability depending on various constraints, is a major task when planning the traceability system. Therefore, we assessed different technologies generically to give hints for choosing techniques to consider. As known technologies often are accompanied by variable costs, additionally an efficient solution for low-value bulk goods is required. We describe some technical possibilities in order to enable implementation of a holistic traceability system.The given evaluation may be applied as basis for detailed investigations regarding technologies to use for identification of discrete objects in order to implement traceability. Through implementation of such measures significant scrap reduction and thereby an improvement of energy efficiency in various applications is possible. Nevertheless, further research may be taken on efficiently identifying low-value bulk goods.

Abstract: Dimensional measurement is a key process in the quality assurance of manufacturing. Not only classical one-dimensional measurement devices, several kind of three-dimensional coordinate measuring systems (CMSs) including coordinate measuring machines (CMMs) are used for dimensional measurement tasks in measurement rooms or in factory floors. For the purpose of the quality guarantee, the measurement for the validation on the products should be performed with the traceable manner. In the case of the dimensional measurement, the measurement results of the products should be stated as the corresponding values in the reference temperature, 20 °C. Therefore, at least the traceability of the length indication instruments and temperature-measuring equipment installed into the measuring device to be used should be ensured. Usually, the traceability of the instrument or equipment is ensured through the calibration on it. Now, typical CMMs in factory floor have non-calibrated temperature-measuring equipment because the equipment is hard to be detached off for the calibration, and therefore, the temperature-measuring equipment is usually left uncalibrated. Recently, a new procedure by which both the length indication instruments and temperature-measuring equipment installed into a CMM are able to be calibrated simultaneously is established. In this research, the traceable dimensional measurement using a CMM equipped with uncalibrated temperature-measuring instrument is developed by as an application of the established calibration procedure. Through the experiment, the traceable dimensional measurement using the CMM placed on the factory floor is demonstrated.

Abstract: In this work, a method for measuring the radial clearance of bearings mounted on a shaft before and after assembling in an automatically and standardized way will be described. A setup was constructed, which enables to measure the radial clearance of different types of bearings with different dimensions. Tests with roller and ball bearings with tapered bore and adapter sleeves show that the developed system provides as good or better results than the manual test method. The results are reliable, objective, independent from the user and reproducible. Based on the results, the process of assembling could be readjusted. By using a closed loop method, it will be achieved that bearings will be mounted on a shaft with the specified radial clearance which is defined by the manufacturer of the bearing.

Abstract: In manufacturing system, 3D Coordinate Measuring Machines (CMM) are widely used for inspection services where the product should be subjected to the verification of design specifications. It is usually necessary to know the accuracy of 3D CMM equipment during the verification process of the product quality in mass production. To insure and increase the accuracy of 3D CMM the international series standards ISO 10360 are used. This paper presents the importance of the establishment of traceability to international standards as a key role for the reliability of 3D CMM measurement results.

Abstract: Through the analysis and elaboration on the research status, system design and main structure of the domestic and foreign traceability system, given that we failed to retrieve the related research of broccoli safety production early-warning and quality traceability systems in domestic till now, we establish the broccoli safety production early warning, control as well as the quality traceability management systems on the basis of previous organic vegetables quality traceability system by using the barcode/QR code and computer component technology. It fully embodies the public security concept that the safe agricultural products are produced and unsafe products are detected. This system has good extensibility in many fields, a variety of security labels and so on

Abstract: in order to ensure the quality and safety of pork products, improve the pork food traceability information real-time, reliability and accuracy, this study adopts B/S structure, designed and implemented based on radio frequency identification technology (RFID), bar code technology, network information technology of pork products traceability system. The system through the electronic tag and barcode for pork food raw material source, production and processing, logistics, and real-time tracking, the terminal sales each link of each link and data transmission through the network to the system server. Consumers on the basis of tracing the source through the computer and mobile terminal can be convenient and quick query ginseng food traceability information.