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Journal articles on the topic 'Traceability components'
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Wang, Hui Ling, Li Peng, and Yu Cheng Ding. "Components Association Mechanism Supporting Requirements Tracing." Advanced Materials Research 998-999 (July 2014): 591–96. http://dx.doi.org/10.4028/www.scientific.net/amr.998-999.591.
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Requirements Traceability has a very important role in the entire application development lifecycle. As for the problem of manual creating requirement traceability relationship time-consuming and error-prone effort problem, this paper proposed a new component-based dynamic requirement traceability model. The model incorporates the requirements specification model and component functionality tree model to format requirements documents and component library. Establish requirements traceability relationships through mutual matching between component facet functional items and requirement documents. Validate requirements traceability feasibility and efficiency through multiple systems and component requirements documents, the experimental results provided by the implemented system show that the model is valid, and efficiency and accuracy have been improved to some extent compared with the conventional information retrieval model.
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Olsen, Petter, and Melania Borit. "The components of a food traceability system." Trends in Food Science & Technology 77 (July 2018): 143–49. http://dx.doi.org/10.1016/j.tifs.2018.05.004.
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Buryak, Yu I., and M. P. Lyubovnikov. "TRACEABILITY OF AIRCRAFT COMPONENTS STATE IN REAL TIME." Vestnik komp'iuternykh i informatsionnykh tekhnologii, no. 191 (May 2020): 32–42. http://dx.doi.org/10.14489/vkit.2020.05.pp.032-042.
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It is shown that the task of increasing the relevance, reliability and completeness of information on the technical condition of products must be solved within the framework of automation of data collection directly in the processes of the product life cycle. New approaches to the organization of information processes for tracking the technical condition of aircraft components (Aircraft) based on the widespread use of mobile computer devices, electronic workflow and automatic identification tools combined with the appropriate software components are proposed. Mathematical models and automated technology have been developed for organizing data collection and monitoring technical state parameters in real time. A software and hardware complex has been formed as a part of stationary and moving parts, which provides an increase in the reliability and efficiency of the technical parameters control of the aircraft components both within this stage and taking into account the previous stages of the life cycle. Examples of modeling and software implementation of automated technology for organizing data collection and monitoring the parameters of the technical condition in real time are given.
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Buryak, Yu I., and M. P. Lyubovnikov. "TRACEABILITY OF AIRCRAFT COMPONENTS STATE IN REAL TIME." Vestnik komp'iuternykh i informatsionnykh tekhnologii, no. 191 (May 2020): 32–42. http://dx.doi.org/10.14489/vkit.2020.05.pp.032-042.
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It is shown that the task of increasing the relevance, reliability and completeness of information on the technical condition of products must be solved within the framework of automation of data collection directly in the processes of the product life cycle. New approaches to the organization of information processes for tracking the technical condition of aircraft components (Aircraft) based on the widespread use of mobile computer devices, electronic workflow and automatic identification tools combined with the appropriate software components are proposed. Mathematical models and automated technology have been developed for organizing data collection and monitoring technical state parameters in real time. A software and hardware complex has been formed as a part of stationary and moving parts, which provides an increase in the reliability and efficiency of the technical parameters control of the aircraft components both within this stage and taking into account the previous stages of the life cycle. Examples of modeling and software implementation of automated technology for organizing data collection and monitoring the parameters of the technical condition in real time are given.
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Buchwald, Paweł, and Artur Anus. "Industrial Internet of Things Systems for Tracking and Traceability of Production Business Processes." Multidisciplinary Aspects of Production Engineering 3, no. 1 (September 1, 2020): 464–76. http://dx.doi.org/10.2478/mape-2020-0039.
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AbstractThe article presents the results of research on the use of measuring devices based on RFID tags and graphic tags to track the increase in production. The conducted research experiments were made in a real production company, which is characterized by an average degree of digitization of its business processes and significantly uses the human factor in production. The conducted research allowed us to show the usefulness of measurement methods in tracking business processes, and to analyze the method of obtaining production data to achieve the traceability of manufactured components. The study also presents selected examples of IT systems in solving traceability problems (traceability and traceability of production).
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An, Jinjing, Guoping Chen, Zhuo Zou, Yaojie Sun, Ran Liu, and Lirong Zheng. "An IoT-Based Traceability Platform for Wind Turbines." Energies 14, no. 9 (May 6, 2021): 2676. http://dx.doi.org/10.3390/en14092676.
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In recent years, the application of traceability systems in the food and drug industry has developed rapidly, but it is rarely used for wind turbines. From the aspects of low information transparency and information islands in the supply chain process for wind turbines, a reliable traceability system is essential. However, the existing traceability systems are not suitable to be directly applied to wind turbines. Consequently, according to the characteristics of the wind power industry, a semi-centralized traceability architecture based on Internet of Things technology was proposed. Furthermore, a traceability platform was constructed by analyzing the information collected in each stage related to various user needs of wind turbines, and various applications, including manufacturing management and spare parts management, were developed. Compared with the existing systems, the proposed platform was wind-turbine-oriented, effectively improved traceability efficiency and enterprises’ information security, and extended the length of the traceability chain by integrating the after-sales information. The traceability of key components of wind turbines during their life cycle provides a useful reference for further improving the parts quality management system of the wind power industry.
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Janeczek, Kamil, Aneta Araźna, Wojciech Stęplewski, and Tomasz Serzysko. "Traceability of printed circuit board assemblies using embedded electronic components." IET Microwaves, Antennas & Propagation 14, no. 8 (April 27, 2020): 785–90. http://dx.doi.org/10.1049/iet-map.2019.0569.
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Pei, Zuo, Zhang, and Wang. "Data Fusion of Fourier Transform Mid-Infrared (MIR) and Near-Infrared (NIR) Spectroscopies to Identify Geographical Origin of Wild Paris polyphylla var. yunnanensis." Molecules 24, no. 14 (July 13, 2019): 2559. http://dx.doi.org/10.3390/molecules24142559.
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Origin traceability is important for controlling the effect of Chinese medicinal materials and Chinese patent medicines. Paris polyphylla var. yunnanensis is widely distributed and well-known all over the world. In our study, two spectroscopic techniques (Fourier transform mid-infrared (FT-MIR) and near-infrared (NIR)) were applied for the geographical origin traceability of 196 wild P. yunnanensis samples combined with low-, mid-, and high-level data fusion strategies. Partial least squares discriminant analysis (PLS-DA) and random forest (RF) were used to establish classification models. Feature variables extraction (principal component analysis—PCA) and important variables selection models (recursive feature elimination and Boruta) were applied for geographical origin traceability, while the classification ability of models with the former model is better than with the latter. FT-MIR spectra are considered to contribute more than NIR spectra. Besides, the result of high-level data fusion based on principal components (PCs) feature variables extraction is satisfactory with an accuracy of 100%. Hence, data fusion of FT-MIR and NIR signals can effectively identify the geographical origin of wild P. yunnanensis.
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Kan, Shuanglong, and Zhiqiu Huang. "Detecting safety-related components in statecharts through traceability and model slicing." Software: Practice and Experience 48, no. 3 (September 5, 2017): 428–48. http://dx.doi.org/10.1002/spe.2526.
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Borgue, Olivia, John Stavridis, Tomas Vannucci, Panagiotis Stavropoulos, Harry Bikas, Rosa Di Falco, and Lars Nyborg. "MODEL-BASED DESIGN OF AM COMPONENTS TO ENABLE DECENTRALIZED DIGITAL MANUFACTURING SYSTEMS." Proceedings of the Design Society 1 (July 27, 2021): 2127–36. http://dx.doi.org/10.1017/pds.2021.474.
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AbstractAdditive manufacturing (AM) is a versatile technology that could add flexibility in manufacturing processes, whether implemented alone or along other technologies. This technology enables on-demand production and decentralized production networks, as production facilities can be located around the world to manufacture products closer to the final consumer (decentralized manufacturing). However, the wide adoption of additive manufacturing technologies is hindered by the lack of experience on its implementation, the lack of repeatability among different manufacturers and a lack of integrated production systems. The later, hinders the traceability and quality assurance of printed components and limits the understanding and data generation of the AM processes and parameters. In this article, a design strategy is proposed to integrate the different phases of the development process into a model-based design platform for decentralized manufacturing. This platform is aimed at facilitating data traceability and product repeatability among different AM machines. The strategy is illustrated with a case study where a car steering knuckle is manufactured in three different facilities in Sweden and Italy.
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Wang, Li, Qinqin Wang, Yuanzhong Wang, and Yunmei Wang. "Comparison of Geographical Traceability of Wild and Cultivated Macrohyporia cocos with Different Data Fusion Approaches." Journal of Analytical Methods in Chemistry 2021 (July 21, 2021): 1–13. http://dx.doi.org/10.1155/2021/5818999.
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Poria originated from the dried sclerotium of Macrohyporia cocos is an edible traditional Chinese medicine with high economic value. Due to the significant difference in quality between wild and cultivated M. cocos, this study aimed to trace the origin of the fungus from the perspectives of wild and cultivation. In addition, there were quite limited studies about data fusion, a potential strategy, employed and discussed in the geographical traceability of M. cocos. Therefore, we traced the origin of M. cocos from the perspectives of wild and cultivation using multiple data fusion approaches. Supervised pattern recognition techniques, like partial least squares discriminant analysis (PLS-DA) and random forest, were employed in this study using. Five types of data fusion involving low-, mid-, and high-level data fusion strategies were performed. Two feature extraction approaches including the selecting variables by a random forest-based method—Boruta algorithm and producing principal components by the dimension reduction technique of principal component analysis—were considered in data fusion. The results indicate the following: (1) The difference between wild and cultivated samples did exist in terms of the content analysis of vital chemical components and fingerprint analysis. (2) Wild samples need data fusion to realize the origin traceability, and the accuracy of the validation set was 95.24%. (3) Boruta outperformed principal component analysis (PCA) in feature extraction. (4) The mid-level Boruta PLS-DA model took full advantage of information synergy and showed the best performance. This study proved that both geographical traceability and optimal identification methods of cultivated and wild samples were different, and data fusion was a potential technique in the geographical identification.
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Baier, Lukas, Franziska Hüttel, Alina Haintl, Peter Schuderer, and Jörg Franke. "Choosing Identification Technologies for Implementation of Traceability in order to Increase Overall Equipment Effectiveness." Applied Mechanics and Materials 871 (October 2017): 87–96. http://dx.doi.org/10.4028/www.scientific.net/amm.871.87.
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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.
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Aversano, Lerina, and Maria Tortorella. "Tracing Links Between Business Processes and Software Systems." International Journal of Information Systems in the Service Sector 5, no. 2 (April 2013): 46–64. http://dx.doi.org/10.4018/jisss.2013040104.
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The traceability links existing between a business process and the supporting software systems s is a critical concern for the organizations, as it directly affects their performance. Methodologies and tools are needed for detecting these kinds of relationships and keeping an evidence of the existing connections. This paper proposes an approach for modelling a business processes evidencing the links existing between their activities and the components of the supporting software systems. The approach described in this paper is concerned with the use of information retrieval techniques to software maintenance and, in particular, to the problem of recovering traceability links between the business process models and the components of the supporting software system. An information retrieval approach is introduced based on two processing phases including syntactic and semantic analysis. The application of the approach is explored through a case study.
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Nosenko, Vladimir, Aleksei Silaev, Stepan Efremkin, and Sergei Grednikov. "Study of the Assembly Manufacturing Automated Traceability System Identification Tools." MATEC Web of Conferences 297 (2019): 01005. http://dx.doi.org/10.1051/matecconf/201929701005.
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This paper considered questions of quality control of production at assembly manufacturing using an automated traceability and identification system. The main possibilities of these systems are: control of the movement of materials, components and products within the production; construction the technological route and control over the accuracy of its compliance; identification all operations with a binding to the operators. Also authors are carried out the review of problems that can be solved by these systems. As one of the methods of identification of materials, components and products, the technology of using RFID-tags are considered. The main characteristics of RFID tags have analyzed (frequency of work, design, power supply). Advantages and disadvantages of this technology are revealed. For example, advantages are high protection at hard operating conditions, rewritable tags and the disadvantages are limited using the tags at high temperatures, occurrence the effect of collision. Authors made conclusions that investigated RFID-tags can be used for assembly manufacturing.
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Haddad, Moawiya A., Sharaf S. Omar, and Salvatore Parisi. "Vegan cheeses vs processed cheeses – traceability issues and monitoring countermeasures." British Food Journal 123, no. 6 (January 22, 2021): 2003–15. http://dx.doi.org/10.1108/bfj-10-2020-0934.
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PurposeThe purpose of this study comes from the need of defining improved durability values and the realization of a good traceability management for selected vegan cheeses has suggested the comparison between a processed cheese and its analogous version without animal-origin raw materials. The durability should be studied at a well-defined temperature, probably agreed among the food producer and the food processor. In addition, the traceability system should consider many components and related suppliers.Design/methodology/approachA supply chain risk assessment analysis has been carried out with relation to two different products: an analogue cheese and a vegan cheese-like preparation. Raw materials and ingredients have been evaluated (production method and origin; geographical identification), with the aim of identifying simplified food.FindingsAn assessment of food supply networks has been carried out. In the first situation (analogue cheeses), the ingredient “cheeses” shows an important complexity: five suppliers with a related six-interconnection hub. On the other side, vegan cheeses are obtained from 11 ingredients (a challenging hub); four of them may be produced from 2–5 components of different origin (five total hubs). Tested processed cheeses are represented by means of a linear food supply network with two hubs (cheeses and “arrival” show degrees 6 and 9, respectively). Networks concerning vegan cheeses include five different hubs: four complex raw materials (degree: 2, 3, 4 and 5) and the “arrival” step (degree: 12).Originality/valueThe information load of vegan cheeses (two hubs, degrees >> average degree) appears high if compared with processed cheeses (two hubs), although the complexity of networks appears similar. Vegan cheeses may seem technologically simpler than processed cheeses and be sometimes questioned because of important traceability issues. Adequate traceability countermeasures in terms of preventive monitoring actions should be recommended when speaking of vegan cheeses. Anyway, a centralized manager would be always required.
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HERNANDEZ-CASTRO, JULIO CESAR, JUAN MANUEL ESTEVEZ-TAPIADOR, PEDRO PERIS-LOPEZ, JOHN A. CLARK, and EL-GHAZALI TALBI. "METAHEURISTIC TRACEABILITY ATTACK AGAINST SLMAP, AN RFID LIGHTWEIGHT AUTHENTICATION PROTOCOL." International Journal of Foundations of Computer Science 23, no. 02 (February 2012): 543–53. http://dx.doi.org/10.1142/s0129054112400278.
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We present a metaheuristic-based attack against the traceability of an ultra-lightweight authentication protocol for RFID environments called SLMAP, and analyze its implications. The main interest of our approach is that it constitutes a complete black-box technique that does not make any assumptions on the components of the underlying protocol and can thus be easily generalized to analyze many other proposals.
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Shteinberg, T. S., and O. V. Morozova. "Evaluation of the metrological characteristics of a scanning flour analyzer in determining the optical properties of components by digital image analysis." Khleboproducty 30, no. 7 (2021): 36–38. http://dx.doi.org/10.32462/0235-2508-2021-30-7-36-38.
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The results of evaluating the metrological characteristics of an experimental sample of a scanning flour analyzer when determining the optical properties of components along the traceability chain of the production of group A pasta by the digital image method with alternate replacement of standard flatbed scanners (imitation of several copies of a scanning analyzer in different laboratories) are presented.
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Chen, Shengxin, Jie Wu, and Jialin Shi. "A BIM Platform for the Manufacture of Prefabricated Steel Structure." Applied Sciences 10, no. 22 (November 13, 2020): 8038. http://dx.doi.org/10.3390/app10228038.
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In the design phase, building information modeling (BIM) software has been widely employed due to its high efficiency, precision, and synergy among different teams. However, the advantages of BIM have not been fully explored in the manufacturing stage where the progress is not so transparent, and information exchange is not so smooth. To deal with these problems, a BIM platform for the manufacture of steel structures is developed in this article, which aims for the management and visualization of manufacturing progress in a steel structure factory in China. The proposed platform was developed and tested by using practical projects. The requirement is analyzed with different users involved in the manufacturing progress. The platform is web-based, where Node.js is adopted for server-side scripting, Neo4j is used for data storage, hyper text markup language (HTML), cascading style sheets (CSS), and JavaScript are used to compile user interface. Besides, a quick response (QR) code is attached to components for traceability. By parsing the BIM model exported in the design phase, essential information of components is imported into the platform, which are the data that form the basis of the following operation. By introducing the platform as a collaborative tool, the traceability and visibility of real-time manufacturing progress of each steel component are significantly enhanced. As a result, this platform can help managers make decisions, workers check quality problems, and other stakeholders grasp the manufacturing progress.
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da Silva, Rosana Pereira, Giovanna Sayuri Domingues Kawai, Fabio Ramos Dias de Andrade, Vinicius Danilo Nonato Bezzon, and Humberto Gomes Ferraz. "Characterisation and Traceability of Calcium Carbonate from the Seaweed Lithothamnium calcareum." Solids 2, no. 2 (May 6, 2021): 192–211. http://dx.doi.org/10.3390/solids2020013.
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Calcium carbonate (CaCO3) from the seaweed Lithothamnium calcareum is a suitable dietary supplement for the prevention of osteoporosis, due to its chemical composition. This study compared CaCO3 from L. calcareum to CaCO3 from oyster shell and inorganic minerals that are already used in the pharmaceutical industry. The Rietveld refinement of the XRD showed that the mineral fraction of L. calcareum is composed of aragonite (50.3 wt%), magnesian calcite (45.3 wt%), calcite (4.4 wt%), comin contrast to oyster shell and inorganic minerals, which contain only calcite. The morphology of L. calcareum carbonate particles is granular xenomorphic, which is distinct from the scalenohedral form of inorganic calcite and the fibrous and scale-like fragments of oyster shell. The crystal structures of aragonite and magnesian calcite, present in L. calcareum, have higher contents of oligoelements than the pure calcite in other materials. The isotopic composition (stable isotopes of carbon and oxygen) is heavy in the CaCO3 from L. calcareum (δ13C = 1.1‰; δ18O = −0.1‰) and oyster shell (δ13C = −4‰; δ18O = −2.8‰) in marked contrast to the much lighter isotopic composition of inorganic mineral CaCO3 (δ13C = −19.2‰; δ18O = −26.3‰). The differences indicated above were determined through principal component analysis, where the first and second principal components are sufficient for the clear distinction and traceability of CaCO3 sources.
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Schott, Walter. "Developments in Homodyne Interferometry." Key Engineering Materials 437 (May 2010): 84–88. http://dx.doi.org/10.4028/www.scientific.net/kem.437.84.
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The trend in many fields of enabling technologies, such as microelectronics, communications, microsystems, and micromechanics, toward imposing increasingly stringent demands upon precision continues. Those types of technologies allow creating micromechanical components having dimensions of a few micrometers that have to be accurately measured, positioned relative to one another, and assembled. In that conjunction, laser-interferometric metrology provides unique opportunities that combine measurements over large ranges at extraordinarily fine resolutions with traceability of measurement results to international length standards. Laser-interferometric metrological systems may be used for measuring displacements ranging from subnanometers to several meters, without need for reconfiguring the optical or electronic systems involved or their component devices.
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Pang, Toh Yen, Juan D. Pelaez Restrepo, Chi-Tsun Cheng, Alim Yasin, Hailey Lim, and Miro Miletic. "Developing a Digital Twin and Digital Thread Framework for an ‘Industry 4.0’ Shipyard." Applied Sciences 11, no. 3 (January 25, 2021): 1097. http://dx.doi.org/10.3390/app11031097.
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This paper provides an overview of the current state-of-the-art digital twin and digital thread technology in industrial operations. Both are transformational technologies that have the advantage of improving the efficiency of current design and manufacturing. Digital twin is an important element of the Industry 4.0 digitalization process; however, the huge amount of data that are generated and collected by a digital twin offer challenges in handling, processing and storage. The paper aims to report on the development of a new framework that combines the digital twin and digital thread for better data management in order to drive innovation, improve the production process and performance and ensure continuity and traceability of information. The digital twin/thread framework incorporates behavior simulation and physical control components, in which these two components rely on the connectivity between the twin and thread for information flow and exchange to drive innovation. The twin/thread framework encompasses specifications that include organizational architecture layout, security, user access, databases and hardware and software requirements. It is envisaged that the framework will be applicable to enhancing the optimization of operational processes and traceability of information in the physical world, especially in an Industry Shipyard 4.0.
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Abdel Mageed, Hala M., and Faisal Q. Alenezi. "Traceability of DC and AC high voltage measurements using voltage divider calibration." International Journal of Electrical Engineering & Education 55, no. 2 (January 30, 2018): 109–19. http://dx.doi.org/10.1177/0020720918754832.
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This paper focuses on achieving traceability of high voltage measurements up to 200 kV at the Egyptian National Institute of Standards. The measurement system consists of an AC/DC voltmeter and a universal resistive/capacitive high voltage divider. The voltmeter shows measured voltage values based on the scale factor of the voltage divider. The divider ensures a stable capacitance for AC voltage measurements and an additional resistive parallel path for DC voltage measurements. Both the divider and the voltmeter are calibrated in AC and DC modes. All uncertainty components are taken into account to obtain measured values with an acceptable accuracy. The calibration results in traceability to the national standards, which make measurements using the international system of units. The proposed calibration method is useful for the theory and practice of high voltage measurements in education, industrial applications, and electrical metrology studies.
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Hu, Yao Guang, Dong Feng Wu, and Jing Qian Wen. "The Quality Data Model of Product Lifecycle and Base Application in Electronic Components Industry." Applied Mechanics and Materials 635-637 (September 2014): 1948–51. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.1948.
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On the basis of the electronic components business processes and the analysis of the quality data related, a model based on the object entity of the product life cycle is proposed. Object entity as the carrier of the related data this model mergers and reorganizes the related business, meanwhile links the entity through the revolved information of the quality data model thus achieving the integrity of the business in both time and space. This data model as the basis, can effectively realize the integration and sharing of quality data, facilitates the quality data analysis and quality traceability, and improve the capabilities of quality data management for the enterprise.
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Yiu, Neo C. K. "Toward Blockchain-Enabled Supply Chain Anti-Counterfeiting and Traceability." Future Internet 13, no. 4 (March 29, 2021): 86. http://dx.doi.org/10.3390/fi13040086.
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Existing product anti-counterfeiting and traceability solutions across today’s internationally spanning supply chain networks are indeed developed and implemented with centralized system architecture relying on centralized authorities or intermediaries. Vulnerabilities of centralized product anti-counterfeiting solutions could possibly lead to system failure or susceptibility of malicious modifications performed on product records or various potential attacks to the system components by dishonest participant nodes traversing along the supply chain. Blockchain technology has progressed from simply being a use case of immutable ledger for cryptocurrency transactions, to a programmable interactive environment of developing decentralized and reliable applications addressing different use cases globally. Key areas of decentralization, fundamental system requirements, and feasible mechanisms of developing decentralized product anti-counterfeiting and traceability ecosystems utilizing blockchain technology are identified in this research, via a series of security analyses performed against solutions currently implemented in supply chain industry with centralized architecture. The decentralized solution will be a secure and immutable scientific data provenance tracking and management platform where provenance records, providing compelling properties on data integrity of luxurious goods, are recorded and verified automatically across the supply chain.
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Ma, Guofeng, Jun Jiang, and Shanshan Shang. "Visualization of Component Status Information of Prefabricated Concrete Building Based on Building Information Modeling and Radio Frequency Identification: A Case Study in China." Advances in Civil Engineering 2019 (July 14, 2019): 1–13. http://dx.doi.org/10.1155/2019/6870507.
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In view of the problems such as the basic properties, usage, and location of prefabricated concrete building components, which are easy to be omitted, missed, and difficult to query in the field management, this study introduces building information modeling (BIM) and radio frequency identification (RFID) technologies to visualize the state information of prefabricated concrete components, such as component type, manufacturer, location, and temperature. In the design stage, a new RFID family can be built in the actual model in order to solve the lack of definition of RFID family through the Industry Foundation Class (IFC) standard, and the databases of BIM and RFID can be connected with C# language, realizing the effective integration of the two engineering technologies. In the application stage, through the secondary development of Revit, the information connection between PC terminal and RFID equipment is completed, and the component data collected by RFID tags are transmitted to the BIM model to realize the integration and visualization of prefabricated component state information. In this study, the traceability of prefabricated components of prefabricated concrete buildings can be improved, providing a basis for quality responsibility tracking in the later period, reducing unnecessary waste of human and material resources and helping to maximize economic benefits.
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ALTI, ADEL, ABDELLAH BOUKERRAM, ADEL SMEDA, SYLVAIN MAILLARD, and MOURAD OUSSALAH. "COSABuilder AND COSAInstantiator: AN EXTENSIBLE TOOL FOR ARCHITECTURAL DESCRIPTION." International Journal of Software Engineering and Knowledge Engineering 20, no. 03 (May 2010): 423–55. http://dx.doi.org/10.1142/s0218194010004803.
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As software systems grow, their complexity augments rapidly. In consequence their understandability and evolvability are becoming a difficult task. To address this issue, we have previously defined COSA (Component-Object based Software Architecture), which is a software architecture model that describes systems as a collection of components and connectors. However, COSA has been undertaken with academic rather than commercial goals. This paper presents a modeling tool (called COSABuilder) and instantiating tool (called COSAInstantiator) for COSA metamodel and describes their various features. Our contribution is not only offering MDA-based tools but also automatic instantiation and automatic verification of software architecture specifications. The goal is to preserve architecture traceability features in the modeling space and to create accurate architectures.
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Garcia, Joe, Russell Shannon, Aaron Jacobson, William Mosca, Michael Burger, and Roberto Maldonado. "Powerful authentication regime applicable to naval OFP integrated development (PARANOID): a vision for non-circumventable code signing and traceability for embedded avionics software." Journal of Defense Analytics and Logistics 5, no. 1 (June 23, 2021): 46–76. http://dx.doi.org/10.1108/jdal-03-2020-0006.
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Purpose This paper aims to describe an effort to provide for a robust and secure software development paradigm intended to support DevSecOps in a naval aviation enterprise (NAE) software support activity (SSA), with said paradigm supporting strong traceability and provability concerning the SSA’s output product, known as an operational flight program (OFP). Through a secure development environment (SDE), each critical software development function performed on said OFP during its development has a corresponding record represented on a blockchain. Design/methodology/approach An SDE is implemented as a virtual machine or container incorporating software development tools that are modified to support blockchain transactions. Each critical software development function, e.g. editing, compiling, linking, generates a blockchain transaction message with associated information embedded in the output of a said function that, together, can be used to prove integrity and support traceability. An attestation process is used to provide proof that the toolchain containing SDE is not subject to unauthorized modification at the time said critical function is performed. Findings Blockchain methods are shown to be a viable approach for supporting exhaustive traceability and strong provability of development system integrity for mission-critical software produced by an NAE SSA for NAE embedded systems software. Practical implications A blockchain-based authentication approach that could be implemented at the OFP point-of-load would provide for fine-grain authentication of all OFP software components, with each component or module having its own proof-of-integrity (including the integrity of the used development tools) over its entire development history. Originality/value Many SSAs have established control procedures for development such as check-out/check-in. This does not prove the SSA output software is secure. For one thing, a build system does not necessarily enforce procedures in a way that is determinable from the output. Furthermore, the SSA toolchain itself could be attacked. The approach described in this paper enforces security policy and embeds information into the output of every development function that can be cross-referenced to blockchain transaction records for provability and traceability that only trusted tools, free from unauthorized modifications, are used in software development. A key original concept of this approach is that it treats assigned developer time as a transferable digital currency.
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Geckeler, Ralf D. "ESAD Shearing Deflectometry: A Primary Flatness Standard with Sub-Nanometer Uncertainty." Key Engineering Materials 381-382 (June 2008): 543–46. http://dx.doi.org/10.4028/www.scientific.net/kem.381-382.543.
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To overcome the limitations of conventional interferometry, a technique has been developed which allows the absolute topography measurement of near-plane and slightly curved optical surfaces of arbitrary size with low measurement uncertainty. The Extended Shear Angle Difference (ESAD) method combines deflectometric and shearing techniques in a unique way to minimize measurement errors and to optimize measurand traceability. A device for the topography measurement of optical surfaces up to 500 mm in diameter, achieving sub-nanometer repeatability, reproducibility and uncertainty, was built at the Physikalisch-Technische Bundesanstalt (PTB). The ESAD method is optimally suited for creating a primary standard for straightness and flatness with highest accuracy by which the three-flat test or liquid mirrors can be replaced as starting points of the traceability chain in flatness measurement. In the following, the improved ESAD device which uses optimized opto-mechanical components is presented. Central aspects of the proper design and use of deflectometric systems are highlighted, including the optimal use of pentaprisms.
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González-Domínguez, Raúl, Ana Sayago, Ikram Akhatou, and Ángeles Fernández-Recamales. "Multi-Chemical Profiling of Strawberry as a Traceability Tool to Investigate the Effect of Cultivar and Cultivation Conditions." Foods 9, no. 1 (January 16, 2020): 96. http://dx.doi.org/10.3390/foods9010096.
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The chemical composition of foods is tightly regulated by multiple genotypic and agronomic factors, which can thus serve as potential descriptors for traceability and authentication purposes. In the present work, we performed a multi-chemical characterization of strawberry fruits from five varieties (Aromas, Camarosa, Diamante, Medina, and Ventana) grown in two cultivation systems (open/closed soilless systems) during two consecutive campaigns with different climatic conditions (rainfall and temperature). For this purpose, we analyzed multiple components closely related to the sensory and health characteristics of strawberry, including sugars, organic acids, phenolic compounds, and essential and non-essential mineral elements, and various complementary statistical approaches were applied for selecting chemical descriptors of cultivar and agronomic conditions. Anthocyanins, phenolic acids, sucrose, and malic acid were found to be the most discriminant variables among cultivars, while climatic conditions and the cultivation system were behind changes in polyphenol contents. These results thus demonstrate the utility of combining multi-chemical profiling approaches with advanced chemometric tools in food traceability research.
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Kuzmenko, Iuriy, O. M. Samoilenko, and Serhiy Tsiporenko. "MULTIPURPOSE MEASUREMENT MODELS FOR ADJUSTMENT BY THE LEAST-SQUARES METHOD." Measuring Equipment and Metrology 82, no. 2 (2021): 29–37. http://dx.doi.org/10.23939/istcmtm2021.02.029.
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The development of multipurpose measurement models is the precondition for software development for simultaneous adjustment of the large scope and complicated combinations of the measurement results by the least-squares method. Multipurpose measurement models for software can be a helpful tool for processing the final measurement results provided by different measurement methods applying the mentioned software; processing the measurement results of measurement standards comparisons, interlaboratory comparison, and calibration procedures; estimating the additive and multiplicative systematic components of measurement errors and their uncertainty; processing complicated combinations by binding or linking up of the interlaboratory comparison and calibration results in the time; simultaneous processing of the measurement results obtained by various methods e.g. by the method of direct measurements and comparisons; fast-changing the multipurpose measurement models from linear to non-linear type. Processing of the results by software based on the multipurpose measurement model algorithm can help to established a comprehensive measurement traceability network by pooling the single traceability chains.
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Chuffart, Florent, Nicolas Dumoulin, Thierry Faure, and Guillaume Deffuant. "SimExplorer." International Journal of Agricultural and Environmental Information Systems 1, no. 1 (January 2010): 55–68. http://dx.doi.org/10.4018/jaeis.2010101304.
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This article describes Simexplorer, a computer framework for managing simulation experiments and, to some extent, the scientific quality of the modelling process. An information system, included in the framework, insures the traceability of the experiments and their reproducibility and thus contributes to the modelling process quality management. Moreover, this information system provides facilities for sharing and exchanging components of experiment scenarios. The authors illustrate the use of the framework on a simple example of modelling process.
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Piróg, Przemysław, and Mariusz Górecki. "AC/DC transfer standards calibration in Central Military Calibration Laboratory." Bulletin of the Military University of Technology 66, no. 4 (December 31, 2017): 217–28. http://dx.doi.org/10.5604/01.3001.0010.8333.
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The article discusses the method used in the Central Military Calibration Laboratory to calibrate Fluke 5790 AC/DC transfer standard with reference transfer standard Fluke 792A. It presents the measurement equation and the uncertainty budget. The contribution of uncertainty components in the measurement uncertainty has been presented. The metrological traceability has been evaluated by comparing calibration results with the results in the last Fluke certificate of calibration. Keywords: AC/DC converters, AC/DC difference, thermal voltage converters (TVCs), AC voltage measurement.
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Sjödahl, Mikael, and Erik Olsson. "Robustness of Laser Speckles as Unique Traceable Markers of Metal Components." Digital 1, no. 1 (February 18, 2021): 54–63. http://dx.doi.org/10.3390/digital1010004.
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The traceability of manufactured components is growing in importance with the greater use of digital service solutions offered and with an increased digitalization of manufacturing logistics. In this paper, we investigate the use of image-plane laser speckles as a tool to acquire a unique code from the surface of the component and the ability to use this pattern as a secure component-specific digital fingerprint. Intensity correlation is used as a numerical identifier. Metal sheets of different materials and steel pipes are considered. It is found that laser speckles are robust against surface alterations caused by surface compression and scratching and that the correct pattern reappears from a surface contaminated by oil after cleaning. In this investigation, the detectability is close to 100% for all surfaces considered, with zero false positives. The exception is a heavily oxidized surface wiped by a cotton cloth between recordings. It is further found that the main source for lost detectability is caused by misalignment between the registration and detection geometries where a positive match is lost by a change in angle in the order of 60 mrad. Therefore, as long as the registration and detection systems, respectively, use the same optical arrangement, laser speckles have the ability to serve as unique component identifiers without having to add extra markings or a dedicated sensor to the component.
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Tkachenko, I. Y., A. G. Budko, A. Y. Mikheeva, and A. I. Krylov. "The new certified reference material of chlorobenzene as a means of providing the metrological traceability for calibration and measurements." Reference materials 16, no. 1 (June 24, 2020): 43–55. http://dx.doi.org/10.20915/2687-0886-2020-16-1-43-55.
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The article is devoted to the development of a reference material of chlorobenzene composition, providing metrological traceability of measurement results to the State primary measurement standard of units of mass (molar) fraction and mass (molar) concentration of organic components in liquid and solid substances and materials based on liquid and gas chromatography-mass spectrometry with isotopic dilution and gravimetry GET 208-2014.The paper considers an indirect method for determining the purity of the starting substance, describes the main stages of development of the reference material, and presents the results of the evaluation of the reference material metrological characteristics, including studies on homogeneity and stability.The reference material of the composition of chlorobenzene has the following metrological characteristics: mass fraction of chlorobenzene (from 993.0 to 999.8 mg/g); molar fraction of chlorobenzene (from 99.30% to 99.98%); the expanded uncertainty of the certified characteristics is 0.02% (at k = 2).The reference material ensures metrological traceability to units of measuring instruments and measurement results, and is intended for verification, and calibration and graduations.
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González-Domínguez, Sayago, Morales, and Fernández-Recamales. "Assessment of Virgin Olive Oil Adulteration by a Rapid Luminescent Method." Foods 8, no. 8 (July 25, 2019): 287. http://dx.doi.org/10.3390/foods8080287.
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The adulteration of virgin olive oil with hazelnut oil is a common fraud in the food industry, which makes mandatory the development of accurate methods to guarantee the authenticity and traceability of virgin olive oil. In this work, we demonstrate the potential of a rapid luminescent method to characterize edible oils and to detect adulterations among them. A regression model based on five luminescent frequencies related to minor oil components was designed and validated, providing excellent performance for the detection of virgin olive oil adulteration.
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Escudero, Alfredo, Natividad Ramos, M. Dolores La Rubia, and Rafael Pacheco. "Influence of Extreme Storage Conditions on Extra Virgin Olive Oil Parameters: Traceability Study." Journal of Analytical Methods in Chemistry 2016 (2016): 1–10. http://dx.doi.org/10.1155/2016/7506807.
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This study reflects the effect of extreme storage conditions on several extra virgin olive oil (EVOO) varieties (arbequina, hojiblanca, and picual). The conditions were simulated in the laboratory, by means of heating treatments in stove at different temperatures (40 and 60°C) and times (two and three weeks). The aim is the evaluation of the deterioration of the quality parameters and minority components, which are responsible for the nutritional and therapeutic properties (fatty acids, polyphenols, pigments, and tocopherols), and organoleptic qualities. The quality criteria and limits used in this work are according to International Olive Council. The results contribute to the control of the traSceability for the commercialization of the EVOO.
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Suvorova, Svetlana, Oksana Kulikova, and Natalja Tropynina. "Designing a sustainable logistics supply chain." E3S Web of Conferences 284 (2021): 04015. http://dx.doi.org/10.1051/e3sconf/202128404015.
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The purpose of study was to identify the main approaches to the formation of an industry solution related to the design of effective supply chains and aimed at increasing the visibility of constraints and bottlenecks, as well as to prevent unwanted blockages in the logistics process. The work uses general scientific methods of logistics research based on economic and methodological developments in the field of transdisciplinary analysis of modern logistics. The necessity of using a qualitatively new approach of fragmented design of the logistics process, based on a system of values, focused on the new code and digital thinking, in the core of which the cognitive platform is in the real economy sector, has been substantiated. The main components of an industry solution for supply chain visibility and traceability are defined. Conceptualized and theoretically divided into stages the process of designing an effective logistics supply chain that meets the conditions of visibility and traceability. The formation of an industry solution related to the design of a fragmented logistics process and an efficient supply chain is of applied importance and can maximally meet the growing needs of stakeholders to create sustainable multi-level distribution channels of all types of resources.
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Domínguez, E., M. Zapata, and B. Pérez. "Towards a Traceable Clinical Guidelines Application." Methods of Information in Medicine 49, no. 06 (2010): 571–80. http://dx.doi.org/10.3414/me09-01-0038.
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Summary Objectives: The goal of this research is to provide an overall framework to enable modelbased development of clinical guideline-based decision support systems (GBDSSs). The automatically generated GBDSSs are aimed at providing guided support to the physician during the application of guidelines and automatically storing guideline application data for traceability purposes. Methods: The development process of a GBDSS for a guideline is based on modeldriven development (MDD) techniques which allow us to carry out such a process automatically, making development more agile and saving on human resource costs. We use UML Statecharts to represent the dynamics of guidelines and, based on this model, we use a MDD-based tool chain to generate the guideline-dependent components of each GBDSS in an automatic way. In particular, as for the traceability capabilities of each GBDSS, MDD techniques are combined with database schema mappings for metadata management in order to automatically generate the GBDSS-persistent component as one of the main contributions of this paper. Results: The complete framework has been implemented as an Eclipse plug-in named GBDSSGenerator which, starting from the statechart representing a guideline, allows the development process to be carried out automatically by only selecting different menu options the plug-in provides. We have successfully validated our overall approach by generating the GBDSS for different types of clinical guidelines, even for laboratory guidelines. Conclusions: The proposed framework allows the development of clinical guideline-based decision support systems in an automatic way making this process more agile and saving on human resource costs.
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Ortega, Naiara, Soraya Plaza, Alejandro Pascual, Ibon Holgado, and Aitzol Lamikiz. "A methodology to obtain traceability for internal and external measurements of Inconel 718 components by means of XRCT." NDT & E International 120 (June 2021): 102436. http://dx.doi.org/10.1016/j.ndteint.2021.102436.
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Mal’ginov, A. V., O. G. Popov, A. V. Kolobova, L. A. Konopelko, and Y. A. Kustikov. "Traceability assurance of results of measurements for pollutant substances content in industrial emissions by automatic measuring systems." Measurement Standards. Reference Materials 16, no. 4 (March 26, 2021): 17–26. http://dx.doi.org/10.20915/2687-0886-2020-16-4-17-26.
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The results of the development of a gas mixing and analytical stand (reference complex) for testing in order to approve the type of automatic measuring systems (AMS) for determining the content of pollutants in industrial emissions are presented. During the use of the AMS test bench, the units of molar fraction and mass concentration are transferred from the State primary standard of units of molar fraction, mass fraction and mass concentration of components in gas and gas condensate media GET 154 to the tested measuring gas channels of AMS, thereby ensuring traceability of AMS measurement results to the State primary standard GET 154.
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Yiu, Neo C. K. "Decentralizing Supply Chain Anti-Counterfeiting and Traceability Systems Using Blockchain Technology." Future Internet 13, no. 4 (March 25, 2021): 84. http://dx.doi.org/10.3390/fi13040084.
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An interesting research problem in the supply chain industry is evaluating and determining the provenance of physical goods—demonstrating the authenticity of luxury goods such as bottled wine. However, many supply chain systems and networks have been built and implemented with centralized system architecture, relying on centralized authorities or any form of intermediary, and leading to issues such as single-point processing, storage and failure, which could be susceptible to malicious modifications to product records or various potential attacks to system components by dishonest participant nodes traversing along the supply chain. Blockchain technology has evolved from merely being a decentralized, distributed and immutable ledger of cryptocurrency transactions to a programmable interactive environment for building decentralized and reliable applications addressing different use-cases and existing problems in the world. In this research, with a chosen research method of proof-by-demonstration, the Decentralized NFC-Enabled Anti-Counterfeiting System (dNAS) is proposed and developed, decentralizing a legacy anti-counterfeiting system of the supply-chain industry using Blockchain technology to facilitate trustworthy data provenance retrieval, verification and management, as well as strengthening the capability of the product’s anti-counterfeiting and traceability qualities in the wine industry, with the capacity to further extend this to the supply chain industry as a whole. The proposed dNAS utilizes a decentralized blockchain network with a consensus protocol compatible with the concept of enterprise blockchain, programmable smart contracts and a distributed file storage system to develop a secure and immutable scientific-data provenance tracking and management platform on which provenance records, providing compelling properties of the data integrity of luxurious goods, are recorded, verified and validated automatically.
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Panteghini, Mauro, and Federica Braga. "Implementation of metrological traceability in laboratory medicine: where we are and what is missing." Clinical Chemistry and Laboratory Medicine (CCLM) 58, no. 8 (July 28, 2020): 1200–1204. http://dx.doi.org/10.1515/cclm-2019-1128.
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AbstractBackgroundThe Joint Committee on Traceability in Laboratory Medicine (JCTLM) has recently created the Task Force on Reference Measurement System Implementation (TF-RMSI) for providing guidance on traceability implementation to in vitro diagnostics (IVD) manufacturers. Using serum creatinine (sCr) as an example, a preliminary exercise was carried out by checking what type of information is available in the JCTLM database and comparing this against derived analytical performance specifications (APS) for measurement uncertainty (MU) of sCr.ContentAPS for standard MU of sCr measurements were established as a fraction (≤0.75, minimum quality; ≤0.50, desirable quality; and ≤0.25, optimum quality) of the intra-individual biological variation of the measurand (4.4%). By allowing no more than one third of the total MU budget for patient samples to be derived from higher-order references, two out of the four JCTLM reference materials (RMs) at least allow minimum APS to be achieved for the MU of patient samples. Commutability was explicitly assessed for one of the JCTLM-listed matrixed RMs, which was produced in compliance with ISO 15194:2009 standard, whereas the remaining three RMs were assessed against the ISO 15194:2002 version of the standard, which only required the extent of commutability testing to be reported. Regarding the three listed reference methods, the MU associated with isotopic dilution-mass spectrometry coupled to gas chromatography (ID/GC/MS) and isotopic dilution-mass spectrometry coupled to liquid chromatography (ID/LC/MS) would allow APS to be fulfilled, while the isotope dilution surface-enhanced Raman scattering (ID/SERS) method displays higher MU.SummaryThe most recently listed RM for sCr in the JCTLM database meets the ISO 15194:2009 requirements with MU that would allow APS to be fulfilled and has had commutability demonstrated for use as a common calibrator in implementing traceability of sCr measurements. Splitting clinical samples with a laboratory performing ID/GC/MS or ID/LC/MS provides an alternative but would also require all components of uncertainty of these materials to be assessed.OutlookUsing appropriately derived APS to judge whether reference measurement system components are fit for purpose represents a novel approach. The TF-RMSI is planning to review a greater number of measurands to provide more robust information about the state of the art of available reference measurement systems and their impact on the ability of clinical measurements to meet APS.
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Kristensen, Gunn B. B., Pål Rustad, Jens P. Berg, and Kristin M. Aakre. "Analytical Bias Exceeding Desirable Quality Goal in 4 out of 5 Common Immunoassays: Results of a Native Single Serum Sample External Quality Assessment Program for Cobalamin, Folate, Ferritin, Thyroid-Stimulating Hormone, and Free T4 Analyses." Clinical Chemistry 62, no. 9 (September 1, 2016): 1255–63. http://dx.doi.org/10.1373/clinchem.2016.258962.
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Abstract BACKGROUND We undertook this study to evaluate method differences for 5 components analyzed by immunoassays, to explore whether the use of method-dependent reference intervals may compensate for method differences, and to investigate commutability of external quality assessment (EQA) materials. METHODS Twenty fresh native single serum samples, a fresh native serum pool, Nordic Federation of Clinical Chemistry Reference Serum X (serum X) (serum pool), and 2 EQA materials were sent to 38 laboratories for measurement of cobalamin, folate, ferritin, free T4, and thyroid-stimulating hormone (TSH) by 5 different measurement procedures [Roche Cobas (n = 15), Roche Modular (n = 4), Abbott Architect (n = 8), Beckman Coulter Unicel (n = 2), and Siemens ADVIA Centaur (n = 9)]. The target value for each component was calculated based on the mean of method means or measured by a reference measurement procedure (free T4). Quality specifications were based on biological variation. Local reference intervals were reported from all laboratories. RESULTS Method differences that exceeded acceptable bias were found for all components except folate. Free T4 differences from the uncommonly used reference measurement procedure were large. Reference intervals differed between measurement procedures but also within 1 measurement procedure. The serum X material was commutable for all components and measurement procedures, whereas the EQA materials were noncommutable in 13 of 50 occasions (5 components, 5 methods, 2 EQA materials). CONCLUSIONS The bias between the measurement procedures was unacceptably large in 4/5 tested components. Traceability to reference materials as claimed by the manufacturers did not lead to acceptable harmonization. Adjustment of reference intervals in accordance with method differences and use of commutable EQA samples are not implemented commonly.
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Conti, Massimo, and Simone Orcioni. "Cloud-based sustainable management of electrical and electronic equipment from production to end-of-life." International Journal of Quality & Reliability Management 36, no. 1 (January 7, 2019): 98–119. http://dx.doi.org/10.1108/ijqrm-02-2018-0055.
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Purpose The purpose of this paper is to describe a system and a database structure for the tracing of the waste of electric and electronic equipment (WEEE) using radio-frequency identification tags. Design/methodology/approach The problems related to the management of WEEE and the international directives have been presented and analyzed. The authors propose a traceability system to extend the tracing in the reverse logistics. Findings The proposed systems allow a more efficient management of the reuse, repair and recycle phase of the products and components, thus reducing the disposal of the electric and electronic equipment. There are many possible positive impacts of the system. The authors investigate, in particular, the impact of the single component tracing on the disposal cost reduction and on the reliability improvement using reused components. Research limitations/implications The system has been tested in the production chain of a company that produces electronic equipment for elevators. Up to now, the results and impact are limited to the company. Practical implications The system has been applied in the management of reused components of a specific company. The immediate result was that the system allowed the redesign of the electronic product with a cost reduction and reliability improvement. Social implications The authors think that the proposed solution allows a step forward in the reduction of WEEE. Originality/value The database structure and the web application, used to track the entire working life of an electronic appliance, are original. Original is also the idea of tracing all the single components of the electronic products.
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Shteinberg, T. S., O. G. Shvedova, O. V. Morozova, S. N. Kolomiets, and A. I. Koval. "On the development of a traceability system in the production of group «А» pasta by optical properties of components." Khleboproducty 29, no. 1 (2020): 52–55. http://dx.doi.org/10.32462/0235-2508-2020-29-1-52-55.
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Hamzah, Rabab N., Karrer M. Alghazali, Alexandru S. Biris, and Robert J. Griffin. "Exosome Traceability and Cell Source Dependence on Composition and Cell-Cell Cross Talk." International Journal of Molecular Sciences 22, no. 10 (May 19, 2021): 5346. http://dx.doi.org/10.3390/ijms22105346.
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Exosomes are small vesicles with an average diameter of 100 nm that are produced by many, if not all, cell types. Exosome cargo includes lipids, proteins, and nucleic acids arranged specifically in the endosomes of donor cells. Exosomes can transfer the donor cell components to target cells and can affect cell signaling, proliferation, and differentiation. Important new information about exosomes’ remote communication with other cells is rapidly being accumulated. Recent data indicates that the results of this communication depend on the donor cell type and the environment of the host cell. In the field of cancer research, major questions remain, such as whether tumor cell exosomes are equally taken up by cancer cells and normal cells and whether exosomes secreted by normal cells are specifically taken up by other normal cells or also tumor cells. Furthermore, we do not know how exosome uptake is made selective, how we can trace exosome uptake selectivity, or what the most appropriate methods are to study exosome uptake and selectivity. This review will explain the effect of exosome source and the impact of the donor cell growth environment on tumor and normal cell interaction and communication. The review will also summarize the methods that have been used to label and trace exosomes to date.
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Krasheninina, M. P., M. Yu Medvedevskikh, E. V. Galeeva, and R. R. Galeev. "Application of Raman spectroscopy in the quality control of injectable medicines." Reference materials 15, no. 1 (July 9, 2019): 39–53. http://dx.doi.org/10.20915/2077-1177-2019-15-1-39-53.
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This paper presents the results of the identification procedure certification and subsequent quantitative determination of the active ingredients of two-component injectable medicines (active ingredient and solvent) using Raman spectroscopy. The main objective of the research was to select approaches for estimating the metrological characteristics of the measurement procedure, which include consideration of the methodological parameters and provide the metrological traceability of measurement results to SI units. According to this purpose, the GVET 176‑1‑2010 State Secondary Measurement Standard for units of mass fraction, mass (molar) concentration of components in solid and liquid substances and materials based on volumetric titration was used. The following substances were chosen as the research objects for estimating the metrological characteristics of the measurement procedure: ascorbic acid, novocaine and sodium thiosulphate. The authors of the work have demonstrated the measurement-procedure certification results, whose accurate determination was confirmed by the results of interlaboratory comparisons. The obtained results confirmed the accuracy of the identification procedure and subsequent quantitative determination, which proves its applicability for the determination of the active ingredients in two-component injectable medicines. In addition, the possibility of developing reference materials based on the medicines under study is indicated. Further development of this study may be directed at the development of an identification procedure and its certification, with subsequent quantitative determination of the active ingredients of injectable medicines having three components as well as those having a more complex composition.
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Newman-Gage, Helen. "Application of Quality Assurance Practices in Processing Cells and Tissues for Transplantation." Cell Transplantation 4, no. 5 (September 1995): 447–54. http://dx.doi.org/10.1177/096368979500400506.
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Attention to issues of quality assurance from the early stages of development of experimental cell therapies provides a margin of safety for recipients. Adherence to minimum standards of practice at acquisition, processing, storage, and implantation ensures not only this baseline safety factor for patients, but also provides a baseline for comparative evaluations between different studies or different banks. This paper describes the basic components of a quality assurance program tailored to laboratories and facilities that collect, process, or distribute human cells and tissues for transplantation. These components include policy and procedure manuals, donor screening practices, processing procedures evaluation and control, training and education programs, auditing and investigation roles, responsibility for release of grafts, and recordkeeping and traceability requirements. References and resources for detailed information related to good manufacturing practices and good clinical and laboratory practices are provided. Standards, regulations, and current legislation specifically related to human cells and tissues intended for transplantation are also discussed.
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Chen, Hao, Tian Yi Gao, Guang Yu Mu, and Lan Lan Pan. "Research on the Material Tracking Management System in the Magnetic Pump Assembly Process." Applied Mechanics and Materials 220-223 (November 2012): 513–16. http://dx.doi.org/10.4028/www.scientific.net/amm.220-223.513.
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The material tracking management system in the magnetic pump assembly process is studied to the machine shop and assembly shop of a pump company as an example. The system mainly includes production line management module, assembly process management module, material tracking management module and work in process (WIP) tracking management module. In this system, the workshop visual management, real-time status information collecting on-site, materials status monitoring, and product life cycle file establishing are implemented. The functions of product assembly processes tracking can be realized, so that the traceability of the parts, components, WIP and products in the process can be achieved. The system ensures the material supply timely and equipment operation normally in the production processes.
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Istrate, Daniela, Deepak Amaripadath, Etienne Toutain, Robin Roche, and Fei Gao. "Traceable measurements of harmonic (2 to 150) kHz emissions in smart grids: uncertainty calculation." Journal of Sensors and Sensor Systems 9, no. 2 (November 10, 2020): 375–81. http://dx.doi.org/10.5194/jsss-9-375-2020.
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Abstract. The necessity of measuring harmonic emissions between 2 and 150 kHz is outlined by several standard committees and electrical utilities. This paper presents a measurement system and its traceable characterization designed to acquire and analyse voltages up to 230 V and currents up to 100 A with harmonics up to 150 kHz that may occur in smart grids. The uncertainty estimation is carried out and described in detail for both the fundamental and supraharmonics components. From a metrological point of view, ensuring the traceability of current measurements for frequencies higher than 100 kHz and dealing with the complexity of uncertainty determination are bottlenecks related to supraharmonics measurements that this paper proposes an approach to deal with.