bluuebunny/crossref_metadata_2025 huggingface dataset:
Education on Hydroponic Technology to Increase the Productivity of Modern Farmers
Authors: Rohaeti Rohaeti , Nurhayati Sri
Published: October 2023

The study investigates the impact of education on hydroponic technology among modern farmers, contributing to a deeper understanding of the educational implications involved. The study employed a qualitative methodology, utilising in-depth interviews and observations as data collection techniques. The participants consisted of ten farmers residing in Desa Sukamanah Pangalengan. The implementation of a complete hydroponic curriculum, together with the utilisation of varied training methodologies, has provided farmers with the necessary tools and knowledge to facilitate the shift from conventional agricultural practises to hydroponics. Education enhanced their comprehension, bolstering self-assurance and fostering sustainable, high-caliber farming methodologies. This study highlights the crucial role of education in the adoption of novel practises and contributes to the ongoing dialogue on developments in agriculture. The results indicate that there is a need to broaden educational programmes to reach a larger audience, which can be achieved through partnerships and the utilisation of online platforms.
Implementation of a Business Intelligence Model for Analysis Banking and Credit Management
Authors: Legowo Nilo , Gimpalas Achmad Yodan
Published: October 2023

The 2008 global financial crisis affected the pace of the economy by reducing the level of public trust in banks. Seeing these conditions, Bank XYZ needs to know and analyze the factors that influence bank lending. Debtor data processing at Bank XYZ is well integrated, but in fact, Bank XYZ still needs to pay attention to the principle of prudence in making decisions to provide credit facilities to debtors with minimal risk so that credit can be extended consistently and based on sound credit principles. In monitoring and analyzing the credit system at Bank XYZ, there is one factor that serves as a reference for measuring a bank's ability to bear the risk of credit failure by debtors through NPLs (non-performing loans). In addition to NPLs, the growth in the number of debtors, the amount of credit disbursement, the amount of outstanding credit provided in various sectors, and the amount of collectibility of debtors also play an important role in decision-making by management; therefore, the author proposes a business intelligence model to analyze credit data at XYZ Bank in the form of data visualization in dashboard form. The dashboard was built using the Tablue for Students software. The results of this study are a business intelligence model in the form of a dashboard application to be able to monitor debtor data growth, analyze loans extended in various economic sectors, and analyze outstanding loans using the NPL value as a reference based on credit quality as a decision support tool.
Rational Unified Process as a Software Development Method in Decision Support Systems Design with Simple Additive Weighting in Determining Priority Rehabilitations of Classrooms
Authors: Prihartono Willy , Utami Sri Farida
Published: October 2023

Rational Unified Process (RUP) as a development method in Decision Support System (DSS) is suitable for decision-making processes due to its possibility to show iterative and incremental processes in RUP. The decision-making process takes several phases, which are the intelligence phase, the design phase, the choice phase, and the implementation phase. In Decision Support System has many management models. Simple additive weighting (SAW), also known as the weighted summing method, is used as a management model in this paper. The basic concept of the SAW method is to find the weighted sum of performance ratings for each alternative on all attributes. The RUP Approach, which has an iterative and incremental nature, is expected to become a solution in a decision support system. The RUP project has four phases: inception, elaboration, construction, and transition to the software product. RUP divides software development into a number of "disciplines" that are iterations or phases. Each discipline has associated goals and outputs that are accomplished through planned activities. Complete documentation for every stage of development is also emphasized by RUP. The fundamental of RUP are architecturally based approaches, iterative and incremental development, object-oriented modeling, risk management, and a focus on software quality. Collaboration between the software development team and relevant stakeholders is also encouraged by this methodology.
Problems Of Financing SMES In Ghana: A Case Study Of Kwahu West And Birim Central Municipalities
Authors: OPPONG Frank Adams , AGYEMANG Oscar Opoku AGYEMANG , KYEI Kwabena
Published: October 2023

Purpose:Considered peripheral to economic and public policy in the past, the role of small and medium enterprises (SMEs) has recently been highly recognized as a critical factor in the economic growth and development strategies of countries worldwide. This notwithstanding, SMEs continue to face a myriad of challenges about financing. The study, among others, sought to explore financing challenges facing SMEs in Kwahu West and Birim Central Municipalities of Ghana.Methodology:A survey questionnaire was used to collect data from 200 senior officers of SMEs in the selected municipalities. Descriptive statistics, Pearson's correlation, and linear regression statistical techniques were employed in data analysis.Findings:The findings indicated that most SMEs in both municipalities were sole proprietorships and needed more capacity and expertise to fulfill the requirements for external funding. Also, SMEs need more access to credit, adequate managerial expertise, information asymmetry, and transaction costs. In addition, the findings indicated that SIZE of SME and SME age have a positive and significant relationship with SME financing. Moreover, alternative funding sources, including equity sources provided by the alternative market of the Ghana Stock Exchange, were identified.Implication:The study concluded that although the financing challenges are real and numerous, stakeholder engagements and general governmental support can help push the growth and sustainability of SMEs. It was recommended that the National Board for Small-Scale Industries compile a register of all SMEs in the country and provide a platform for publishing their annual financial reports.
Islamic Concept of Dignity of Labour and Its Effect on The Nascent Entpreneurship Model
Authors: AZEEZ Badmus N. O. Abdul , JIMOH Amidu Adinoyi , ACHARA Issah Zubairu , ABDULLAHI Abubakar Yusuf
Published: October 2023

Purpose: Islam is a vital force that influences economic development and business performance, and it does not impede business development, entrepreneurship, and skill acquisition. Its economic system view of entrepreneurship is an integral part of wealth creation for Muslims. The objective of this paper is to see how the concept of Islamic dignity of labor could assist Muslim participants in the area of entrepreneurship.Methodology:The methodology of this research is theoretical; hence, it applied a qualitative approach.Findings: The data collection was conducted through the personal views of experts in Islamic worldview, Islamic entrepreneurship, ethics, and understanding of al-Qur'an, Sunnah, and other Islamic sources. Undoubtedly, if the Islamic concept of dignity of labor is adhered to, it would assist the Muslims to identify the lawful and the unlawful aspects of participation in entrepreneurship. Findings showed the effect of the Islamic ethical model on the Islamic entrepreneurship design.Implication:It is therefore recommended that whatever role the Muslims want to play in entrepreneurship, the ethics inherent in the Islamic concept of dignity of labor should be applied.
Why Was Original Buddhism for Monks Only?
Authors: Ruzsa Ferenc
Published: October 2023

Early Buddhism was a monastic religion: the Buddha’s disciples were mendicant monks. However, there are many laypeople today who are practising Buddhists, meditating and following the eightfold Buddhist path towards nirvāṇa.This paper investigates how real this apparent inconsistency is. First, it is shown that the Buddha typically did not even speak about his own insights and doctrines to his lay followers; he only preached about general moral principles and gave wise advice, often with a noticeable conservative tinge. Since it is clear that Buddhism was not esoteric (i.e., it did not contain secrets revealed only to the initiated), this state of affairs can be explained only by supposing that the Buddha thought that true Buddhism was useful only for monks. It is never explicitly explained why it was so, but from several hints an answer may be tentatively reconstructed. Buddhist theory was only needed as a basis of Buddhist practice, and in the Buddha’s age and environment, such practice was virtually impossible for laypersons living and toiling in a village, with a family, and taking care of children. One could not find the peace essential for meditation. Furthermore, such worldly life presupposes strong motivations and unavoidably generates desires, whereas Buddhist practice consists of the annihilation of precisely those desires.
Ants of Mexico: Distribution and species richness in environments with varying levels of human impact
Authors: Rodríguez de León Itzel , Venegas Barrera Crystian , Gaona García Griselda , Azuara Domínguez Ausencio , Rosas Mejía Madai
Published: October 2023

Anthropogenic disturbance, primarily driven by land-use changes, has caused alterations in ecosystems and biodiversity, including the ant community. Therefore, the aim of this study was to analyse the current landscape of ant species richness and distribution in environments with varying degrees of disturbance in Mexico. Additionally, we sought to identify ant species of ecological, economic and health significance within the country.

The present study shows that Mexico has a total of 33,286 records of 1,104 ant species belonging to 10 subfamilies. These species were recorded in a wide variety of environments with different levels of human impact. It was observed that both highly-disturbed environments and undisturbed environments had the highest number of ant records. In undisturbed environments, greater species richness was recorded, with a total of 704 species. Furthermore, the most representative ant species for the country were identified in ecological, economic and human health contexts. Within these species, a group composed of four exotic species (Tapinoma melanocephalum, Paratrechina longicornis, Wasmannia auropunctata and Linepithema humile) deserves special attention, as they have achieved extensive dispersion throughout the country and have been associated with negative impacts in ecological, economic and human health realms.
Les traits de personnalité qui destinent les jeunes vers la profession comptable : les cabinets n’attirent plus les « bean-counters »
Authors: Bellettre Ingrid , Bihr Marie-Hélène , Gonthier-Besacier Nathalie
Published: October 2023

Cet article vise à identifier si les traits de personnalité des étudiants influencent le choix de poursuivre une carrière en comptabilité en général, et selon le type de cabinets, Big et Non-Big . ; et comment ils impactent les déterminants de cette décision. Les traits de personnalité sont mesurés par un questionnaire fondé sur le Five Factor Model (FFM) auprès de 390 étudiants français en fin de formation. Contrairement aux stéréotypes, notre recherche met en évidence que seuls les traits « Extraversion » et, concernant le type de cabinet, « Ouverture » influencent l'intention d’intégrer un cabinet. Nos résultats éclairent les perceptions et craintes des jeunes, et montrent l'intérêt de s’adresser à eux - et ainsi mieux les attirer - de manière ciblée selon leur trait de caractère.
Une diplomatie désarmée dans la Seconde Guerre mondiale : un bilan historiographique
Authors: Perin Raffaella
Published: October 2023

L’article analyse l’historiographie internationale des vingt dernières années sur Pie XII et la Seconde Guerre mondiale. Quatre questions qui ont polarisé le débat sont envisagées : la position du Saint-Siège dans la guerre, les relations du Vatican avec le Troisième Reich, les relations diplomatiques du Saint-Siège avec les pays en guerre, le silence de Pie XII sur la Shoah. L’article souligne aussi les questions non résolues auxquelles les historiens devront se confronter grâce aux nouveaux documents mis en lumière après l'ouverture des archives vaticanes du pontificat de Pie XII.
L’Église et les droits humains
Authors: Menozzi Daniele
Published: October 2023

Si dans ses discours, Pie XII a élargi la conception catholique des droits naturels aux droits civils et politiques, et fait émerger des principes et des libertés approfondis par son successeur Jean XXIII, il existe un vide historiographique quant à sa promotion des droits de l’homme. Cet article dresse le bilan de son rapport aux droits humains à la lumière des conceptions traditionnelles de l’Église, examine le silence officiel sur la Déclaration onusienne de 1948, et envisage les apports des nouvelles archives vaticanes.
Oppressions concurrentes ?
Authors: Martin Virginie
Published: October 2023

Théorisée aux États-Unis dans les années 1980, l’approche intersectionnelle a renouvelé en profondeur l’analyse des dominations. La mise en concurrence des oppressions constitue néanmoins un risque.
Le virtuel use le réel
Authors: Ehret Sylvain
Published: October 2023

Très gourmand en énergie, le secteur numérique pèse lourd dans les déséquilibres environnementaux. Une culture de la sobriété doit s’y appliquer comme ailleurs pour la survie de l’humanité.
Le chef et le temps : la « patience stratégique » en question
Authors: Danigo Ludovic
Published: October 2023

Appréhender le futur, bâtir une stratégie pour faire en sorte que celui qui adviendra soit conforme aux desseins et aux intérêts de notre Nation exige plus que de la patience. On ne peut se contenter de déplorer la dictature de l’immédiateté, pas plus que de fustiger les visions de court terme. Le chef militaire doit cultiver sa capacité à anticiper et à saisir le « temps opportun ». Il ne peut y parvenir sans forger son caractère, sans entretenir sa culture historique, sans se fier à son intuition et sans se ménager le temps de l’intériorité.
Graffitis des forts de la Grande Guerre : paroles et images intimes de soldats dans l’Est de la France, 1900-1920
Authors: Seramour Michaël
Published: October 2023

Aujourd’hui encore, les anciens paysages de la guerre – des carrière souterraines aux fortifications militaires – gardent la trace d’innombrables graffitis laissés par les soldats de la Grande Guerre. C’est cette expression iconographique directe du soldat de 14-18 qui est au cœur de cette article : graffitis, peintures, inscriptions et dessins tracés sur les parois de fortifications dans l’est de la France. Cette masse documentaire toujours présente sur le champ de bataille, répertoriée, archivée et analysée pour la première fois depuis la fin du premier conflit mondial, ouvre des perspectives sans pareil pour le chercheur spécialisé dans l’étude de l’univers mental des militaires et des combattants. Elle donne accès à une culture du front créée par le simple poilu.
Una nueva tessera lusoria procedente de Pollentia (Alcúdia, Mallorca)
Authors: Bellviure Joel , Mas-Florit Catalina , Chávez-Álvarez Esther , Cau-Ontiveros Miguel Ángel
Published: October 2023

En 2018 se recuperó una nueva tessera lusoria procedente del foro de Pollentia, sumándose a otro ejemplar hallado durante las excavaciones antiguas de la ciudad romana. Esta ficha de juego en hueso presenta inscripción en tan solo una de las dos caras, un tipo anómalo entre este conjunto de instrumenta. Su presencia en el asentamiento y sus paralelos permiten definir estos elementos de juego como un marcador de personal itálico en los asentamientos republicanos de finales de siglo II a inicios de siglo I a. C. Asimismo, este tipo de material, excepcional en Hispania, permite definir las escurridizas etapas iniciales de Pollentia en un contexto hispano más amplio.
Cell-Free Synthetic Biology
Authors: Qaiser Hammad , Uzair Mohammad , Arshad Abida , Khattak Jabar Zaman Khan , Bashir Shahid
Published: October 2023

Innovations in sustainable biomanufacturing are made possible by cell-free synthetic biology advances. Cell-free workflows frequently combine purified enzymes with cell extracts for cell-free protein synthesis processes to create and analyze biosynthetic pathways and synthesize therapeutics. The development of cell-free platforms, high-yielding, cell-free gene expression systems, and multiplexed strategies for quickly evaluating biological design have all been made possible by recent technological advances in cell-free platforms, such as microfluidics, machine learning, CRISPR-mediated genome editing, etc. Developments in cell-free platforms satisfy many of the requirements of preparatory biochemical research, clinical purposes, diagnostic devices, industrial application, biosensors, etc. that offer exciting opportunities to transform synthetic biology and biotechnology. Therefore, this chapter aims to elaborate on the rapidly advancing field of cell-free platforms.
Molecular Pharming
Authors: Kelmani Chandrakanth R. , Gubbewad Sahanapriya , Oli Ajay Kumar
Published: October 2023

Molecular pharming is a method that combines the use of plants and biotechnological techniques for the production of proteins and bioactive metabolites which are important to support human health and industries. Using genetic engineering techniques, transgenic plants are developed. These plants have applications in the field of agriculture, biofuel, chemical industries, and pharmaceutical industries. These transgenic crop plants with limited facilities can synthesize a large amount of biomass at a low cost, through which a novel source of molecular medicines like plasma proteins, antibodies, vaccines, and growth factors can be isolated. Plant molecular pharming can be used as an alternative to mammalian cells, yeast, or bacterial culture systems for the production of pharmaceutical proteins. This also helps in studying and understanding the mechanism of expression of genes in plants. This chapter deals with the current strategies and approaches used in plant molecular pharming including the strategies, applications, limitations, and biosafety considerations.
New Trends in Developing Therapeutic Proteins by Synthetic Cells on Diseased Tissues
Authors: Ajaykumar Chittipolu , Doneti Ravinder , Akbar Pasha , Chembuli Venkata Satya Sai Nagasri Abhishek
Published: October 2023

A number of disorders can be treated promisingly with therapeutic proteins. Pharmaceutical corporations are focused on protein-based research in their pursuit for cutting-edge, efficient treatments. The manufacturing and application of therapeutic proteins have recently advanced significantly as a consequence of the enormous attention given by researchers. Biotechnological developments have accelerated and streamlined the manufacturing of therapeutically important proteins to fight a variety of terminal illnesses. Although protein-based treatments have assumed a prominent role in drug research and development and improved human safety, a number of difficulties still exist, including problems with safety, protein stability, and immunogenicity and degradation. The authors made an effort to address all potential contributing aspects to the creation of therapeutic proteins as well as any obstacles that researchers may be facing at the moment.
Synthetic Biology for Waste Water to Energy Conversion
Authors: Venkateswaran N. , Kumar S. Senthil , Diwakar G. , Gnanasangeetha D. , Boopathi S.
Published: October 2023

Waste-to-energy (WtE) is a process that generates electricity and heat from waste treatment or processing into fuel sources. WtE can reduce greenhouse gas emissions, landfill waste, and dependence on fossil fuels. However, it faces challenges such as high capital and operational costs, environmental and health impacts, and public acceptance. Synthetic biology (SynBio) can offer novel solutions for WtE by enhancing efficiency, sustainability, and diversity of biological processes. This chapter reviews the current state-of-the-art and future prospects of SynBio applications for WtE, focusing on the integration of IoT and AI technologies. IoT is a network of physical devices, sensors, and actuators that collect, transmit, and process data over the internet, while AI simulates human intelligence in machines. IoT and AI can enable smart monitoring, control, and optimization of SynBio systems for WtE, providing data-driven insights and decision support for stakeholders.
An Overview of the Accessibility and Need of AI Animation Tools for Specially Abled Students
Authors: Parashar Bhakti , Sharma Ravindra , Parashar Vaibhav , Rana Geeta , Nayyar Anand , Harish V.
Published: October 2023

Over 30 years the scope of technological support has broadened from overhead projectors, slides, filmstrips, to 21st century technologies such as 3D simulation and VR. Devices from low tech to high tech are commonly used to assist students with a variety of learning challenges. AI animation tools have the potential to be a useful resource for students with disabilities and can help these students achieve their full potential by including accessibility features and making animations that are especially made for students with special needs. Artificial intelligence is being used to individualize instruction, deliver feedback, and monitor student progress. AI-powered tutors, for instance, can help students learn at their own pace, and AI-powered grading software can assist teachers in accurately and quickly grading papers.
Looking Into the Future With AI for Special Education
Authors: Pal Arjama , Lakshmi D. , Govindaraj Vishnuvarthanan
Published: October 2023

Advancements in AI revolutionize learning, automate tasks, and provide insights. During COVID-19, AI connected educators and learners globally, but special education suffered. This chapter aims to define disabilities, explore AI-based diagnosis tools, and envision personalized learning and assistive technology for inclusive education. The lack of affordable and convenient assistive devices and technology combined with taboos stemming from deeply ingrained misconceptions and prejudices, perpetuating stereotypes and marginalizing individuals with disabilities often forces them to live a life devoid of the proper means to engage in schooling for the purpose of attaining an independent lifestyle. The primary objective of the chapter is to define various types of disabilities and consider various AI-based tools for early disability diagnosis, while also looking to the future with personalized learning and AI-based assistive technologies, assisting both learners and educators in achieving the highest level of education.
Analysis for Online Music Education Under Internet and Big Data Environment
Authors: Zhang Lanfang
Published: October 2023

Online music teaching has brought great challenges to traditional music education. This paper investigates the paradigm of online music education and uses neural networks to evaluate its teaching quality based on the internet and big data. The main work is as follows: 1) The research progress of online music education at home and abroad is introduced. 2) This paper introduces the basic principle and algorithm steps of BPNN and establishes the evaluation index system of online music education quality. The experimental results show that the model proposed in this paper has high accuracy in evaluating online music teaching standards.
Unleashing Digital Agility
Authors: Duvivier Florence , Gupta Gaurav
Published: October 2023

The emergence of digital technologies has disrupted traditional business models, forcing companies to adopt agile responses to remain competitive. Digital agility, the ability to quickly adapt to digital disruptions and opportunities, has become a crucial factor in organizational success. This study aims to synthesize the existing literature on agile responses to digital challenges from a strategic capability perspective, examining the various facets of digital agility, including its antecedents, outcomes, and the organizational factors that enable its development. The present study provides a synthesis of drivers, challenges, strategies, and outcomes of digital agility aligned with the organization, and presents a discussion about future research direction. The study can help organizations unleash digital agility to respond effectively to digital challenges.
On the Assessment of the Failure Strains in Conventional and Incremental Forming of Polymer Sheets
Authors: Rosa-Sainz Ana , Centeno Báez Gabriel , Silva Maria Beatriz , Vallellano Carpoforo
Published: October 2023

This article presents an experimental research carried out on polymer sheet deformed by conventional forming, i.e. tensile and Nakajima tests, as well as by single point incremental forming (SPIF). The analysis is performed for polycarbonate (PC) polymer sheet material within the framework developed in previous recent papers of the authors, which the aim of defining a complete testing methodology for assessing formability and failure by necking and fracture of polymeric sheets. In the case of SPIF, truncated pyramid and cone test geometries are selected, enabling a variety of strain states from plane to biaxial strains. The results obtained allow an accurate evaluation and assessment of the forming limits by necking and fracture within the material forming limit diagram (FLD), and also include an analysis of the influence of the process parameters on the formability and failure modes attained in the case of incremental forming.
Determination of Cost-Effective Machining Strategies for Rough Pocket Milling of Aluminum by Computer-Aided Manufacturing
Authors: García-Martínez Enrique , Miguel Valentín , Mancebo Ángel , Martínez-Martínez Alberto
Published: October 2023

Pocketing is one of the most important operations in the machining of complex parts. This milling process usually consumes a large part of the total machining time, especially if an extensive quantity of material is involved, determining the efficiency of the process. This paper studies the influence of the machining strategy and cutting conditions, and the geometry of the pocket on the machining time and cost when milling AW2007 aluminum alloy. For that purpose, a combined methodology based on experimental tests and CAM simulation is proposed. Cost analysis, which represents the main novelty of the research, takes into consideration, properly, the cutting time required to complete the pocket, the tool life, the tool change time and some economic factors such as power and tool costs. Spiral, curvilinear, parallel and zig-zag machining paths, along with seven different pocket geometries, are considered. Parallel and curvilinear milling trajectories have been found as the most cost-effective strategies. The efficiency of the parallel strategy increases with respect to the others as the geometry of the pocket becomes less compact, i.e., it is defined with a higher shape factor. According to the experimental tests and cost results, the machining operation should be performed with the highest feed rate, axial depth and cutting speed of the experimented values, 0.2 mm/tooth, 10 mm and 200 mm/min, respectively.
Augmented Reality in Industrial Manufacturing - Identification of Application Areas for AR-Based Quality Control/Assembly Based on Technology Suitability
Authors: Ho Phuong Thao , Albajez José Antonio , Mazo Jorge Santolaria , Yagüe-Fabra José Antonio
Published: October 2023

Augmented Reality (AR) has started to be gradually utilized in industrial manufacturing. However, the gap between novel stage and industrial AR-based applications must be comprehensively solved. In this study, the task technology fit (TTF) and method of time measurement (MTM) are applied and put together to create a comprehensive map demonstrating the relationship between manufacturing tasks and AR-solution features. In addition, this map will support exploring the suitability of AR-based solutions and identifying the application areas of AR for industrial manufacturing, primarily focused on quality control, metrology and assembly tasks. By considering both the viewpoint of developers/users and the scientific principles underlying manufacturing tasks in this comprehensive map, the usability and effectiveness of the final AR solution are also ensured at an early stage of AR-based application development.As a result, this paper provides a useful system to utilize AR capabilities for more complex-multistep tasks in a standardized way. Thus, more potential development and improvement of AR-based solutions for quality 4.0, virtual metrology, and complex assemblies in an industrial manufacturing context could be holistically established and built.
A Modelica Library to Simulate Geometrical and Dimensional Deviations in Process Assemblies
Authors: Antolí David Aguilella , Rosado-Castellano Pedro , Nácher Sergio Benavent
Published: October 2023

The main goal of production quality paradigm is a joint improvement of production rate and conformity, while minimizing the waste of resources. This paradigm is aligned with the Zero-Defect Manufacturing (ZDM) approach, which aim is the defect removal in manufactured products. Simulation tools offer a high flexibility to analyse complex systems such as multi-stage manufacturing systems, allowing to optimize the required production rates and the quality of the products. To this end it is necessary to develop simulation models that integrate the discrete behaviour of products flow, and the spread of quality characteristics during the process. This work is focused on the modelling of the geometrical quality characteristics that depend on the deviations induced when the part is held by a processing fixture. For the modelling of this behaviour, Modelica language is selected because of its ability to integrate the modelling of multi-physical systems, including the discreet behaviour necessary to simulate the materials flow. For that purpose, this paper presents a Modelica library for the definition of simulation models able to analyse geometrical and dimensional deviations produced in process assemblies composed of a piece and a fixture. The use of Modelica language, which modelling is based on equations, requires the definition of a mathematical structure, based in this case on the TTRS (Technologically and Topologically Related Surfaces) model.
End-to-End Bioinspired Lightweight Structure Manufacturing-Oriented Design, Validation, and Manufacturing with Advanced Methods
Authors: Blanc Ignacio Laraudogoitia , de Cortazar Maider Garcia , Girot Mata Franck Andres
Published: October 2023

It is known that natural designs are more efficient and functionality-aimed than human designs. Historically, human beings have tried to mimic the way nature designs or the natural designs themselves. However, it turned out that it was usually too complex for the technology of the time. Today there exists the opportunity to mimic most natural designs due to advances in computational power and improvements in manufacturing methods. This can lead to a major weight reduction in the metallic components used, which is a key aspect in many engineering areas such as the aerospace, automotive or energetic industries. This study shows how these bioinspired designs can improve designer experience-based designs in several ways i.e.: mechanical behavior, part number reduction, weight reduction, etc. The components analyzed here will be metallic based on aluminum. It will be also shown the significance of the manufacturing-oriented design so the iteration times are reduced between the CAD and the CAM or the reduction of prototype manufacturing itself. Of course, these designs need to be validated mechanically via CAE and the CAM will also be used to avoid uncertainty during advanced manufacturing processes. Finally, the results of the real manufacturing process are going to be shown so the end-to-end cycle is complete.
The Use of Simulation and Artificial Intelligence as a Decision Support Tool for Sustainable Production Lines
Authors: Cardoso Monica G. , Ares Enrique , Ferreira Luis Pinto , Peláez Gustavo
Published: October 2023

In recent years, the general population has become increasingly aware of the importance of adopting more sustainable lifestyles. For companies, the implementation of sustainable systems is essential. This study aims to examine the contribution of simulation in combination with artificial intelligence (AI) to the sustainability of production lines. Simulation plays a crucial role for managers, as it allows them to predict future scenarios based on past experiences, allowing for more informed with the rise of digitization in the industry, it is now possible to manage resources such as energy and water in a more efficient manner. This is achieved through the use of techniques such as data scanning, communication with intelligent industrial sensors, known as the Industrial Internet of Things (IIoT), and the application of optimization and AI-based solutions to tackle complex problems, both in terms of efficiency and sustainability. This analysis has confirmed the significance of simulation when partnered with AI in improving the sustainability of production lines. This is because they offer the means to improve resource management from an economic, environmental, and social perspective.
Catastrophic Tool Failure Detection in Aeronautical Industrial Drilling Systems Based on Spindle Power Consumption Analysis
Authors: Guerra-Sancho Antonio , Domínguez-Monferrer Carlos , Miguélez María Henar , Cantero José Luis
Published: October 2023

The aeronautical industry is at the forefront of the fourth industrial revolution, which implies an exponential deployment of monitorization, Data Analytics, and connectivity. In alignment with this new paradigm, this research work presents a Catastrophic Tool Failure (CTF) analysis based on spindle power consumption monitoring in an industrial aircraft fuselage drilling process. In the case under study, the airframe components are arranged in hybrid stacks of Carbon Fiber Reinforced Plastic (CFRP) and titanium (Ti6Al4V) during drilling, which adds to the highly variable industrial machining conditions. This inherent complexity can lead to CTF, a significant concern due to its associated cost and time, especially in automatic processes. Industrial CTF detection systems based on motor power consumption establish maximum and minimum power limits to detect tool breakage. However, these systems generate many false positives and false negatives due to process variability and unforeseen events. Therefore, an Exploratory Data Analysis (EDA) of the power spindle consumption signals and other machining-related features is proposed to gain insights into the breakage nature and develop more effective detection systems. This analysis is oriented to set the basis for real-time Catastrophic Tool Failure detection from power spindle consumption monitoring. As a result, advanced processing time-domain detection methods are proposed.
Influence of a Single Machine-Tool Vibration on the Workpiece Waviness Profile in Turning
Authors: Gil-Inchaurza Monica , Beudaert Xavier , Munoa Jokin , Barrenetxea David , Sánchez José Antonio
Published: October 2023

The generation of the surface topography in machining is a complex process whereby the dynamics of the machine-tool and the kinematics of the cutting process are combined. The purpose of developing a surface topography simulation model in turning is to predict the combined effect of the tool geometry, process parameters, and relative tool-workpiece vibration. The simulations demonstrate that a single vibration frequency can generate multiple wavelengths on the workpiece profile. The correlation between machine-tool vibrations and surface topography is applied to accurately diagnose the machine defect that results in poor surface quality in a cylindrical turning process.
Deontology in Industrial Engineering: A Comparison between some Spanish Autonomous Communities
Authors: Larrañaga Pastor Ana C. , González Gaya Cristina , de Lama Burgos Carlos
Published: October 2023

Industrial
Engineering is present in all social and economic areas, and it is one of the essential pillars to achieve the Sustainable Development Goals (SDGs) proposed by the UN (United Nations).
A Maintenance-Based Project Management Approach towards Organizational Sustainability Goals
Authors: García-García Enrique , Gallego-García Sergio , Ren Diqian , García-García Manuel
Published: October 2023

The paper presents an integral project management model based on organizational maintenance applied to all its functions. The motivation of the paper is to fill the existing gap in literature to enhance the function of maintenance as a driver for sustainability as it identifies improvement potentials and secures its efficient deployment and operation during any asset lifecycle. For that purpose, the key factor mediating and enabling it, is the quality function that allows the management and measurement of asset performance. As a result, a quality toolbox is the core set of tools to design, manage, and control any project and their related aspects. Moreover, the project management approach is oriented towards the sustainability goals of the organization and based on them, the selection of projects and activities are defined. Therefore, the approach enables to convert the maintenance function to a holistic function and basis for organizational viability thanks to tailored-made plans for organizational development.
A Proposal for Using Models for Manufacturing (MfM) Methodology to Reconfigure Aerospace Manufacturing Systems
Authors: Arista Rebeca , Mas Fernando , Morales-Palma Domingo , Vallellano Carpoforo
Published: October 2023

Reconfigurable Manufacturing Systems (RMS) have gained prominence in the Aerospace Industry in recent years for several reasons. These include drastic changes in production capacity due to post-COVID19 and new environmental regulations to adapt to remain competitive; however, the current RMS design has not changed. Ontology-based engineering systems (OBE) support complex collaborative design processes that involve multidisciplinary parties and various digital tools, integrating different levels of decision-making. Models for Manufacturing (MfM) is an OBE methodology that supports industrial design and decision making in manufacturing and assembly by preserving business knowledge in ontology models, the knowledge base for generating and integrating aircraft design and manufacturing systems. This paper introduces an MfM application for RMS design in the Aerospace Industry, presenting innovative design concepts that allow RMS to be implemented in a collaborative engineering process for an aerospace product.
Maintenance Data Management: The Potential Effect of Blockchain Technology
Authors: Turino Maria Antonietta , Manco Pasquale , Maresca Piera , Macchiaroli Roberto
Published: October 2023

Product data management is the practice of assimilating, processing, protecting, and storing product data. One of the main concepts of Industry 4.0 is the application of data-driven policies to optimise industrial processes and monitor product life cycles. Consequently, a data management discipline within an organisation has become increasingly prioritised to address significant challenges such as data silos, security risks and general decision-making bottlenecks. The application of digital transformation technologies is needed to capture data from various industrial operations and product status in a smarter way. In addition, the data that is collected can be very useful in the maintenance phase of a product; in fact, it allows us to know the 'history' of the product under consideration, thus making risk factors understandable and giving us the possibility of defining intervention methods well in advance. The implementation of Blockchain (BC) technology in the storage of data that can be used for the maintenance of a product, can be seen as a solution to the problems behind the management of product data, in fact, it allows the acquisition, storage and processing of these in a secure, transparent, and decentralised environment. The present work in this regard studies the effects of BC on the performance of a product data management system in the maintenance process. The main critical issues in maintenance data management were identified and the potential of using blockchain technology was studied. A framework was developed to reproduce the operation of a BC for maintenance data management, and a set of key performance indicators (KPIs) were outlined to assess the effects of BC on the performance of a product data management system in the maintenance process. The results demonstrate that it is possible to improve a company's performance and make it more resilient through the collection of data within the BC, as it allows in-depth analysis during product maintenance planning and provides decision-makers with a single source of truth and insight to make complex decisions.
Optimizing the Supply Chain of Intensive Care Unit Blood Culture Samples to Clinical Microbiology Laboratory Using Lean Six Sigma
Authors: Sancho David , Acero Cacho Raquel , Lavilla Maria José , Corral Miriam , Carrillo-López Andrés , Rezusta Antonio
Published: October 2023

This paper targets the application of Lean Six Sigma (LSS) framework to microbiological diagnosis processes performed in a clinical microbiology laboratory of a tertiary level Spanish hospital.The increase in clinical samples and diagnostic requests during the COVID-19 pandemic led many microbiology laboratories to optimize their processes. Blood culture samples are one of the most critical cultures because a blood infection may endanger the individual's life. Not only the speed and quality of the diagnosis is important, but also the efficiency in the sample’s supply chain to the laboratory and its preservation conditions. To this end, the supply circuits of blood culture samples to the microbiology laboratory play a major role in the process, being the samples from intensive care units (ICUs) among the most critical. The work presents the analysis and optimization of the ordering and supply process of blood culture samples from an intensive care unit to a microbiology laboratory using LSS methodology and tools. The process starts with the blood culture’s order generation from the intensive care unit specialist and ends with the final reception of the blood culture sample in the pre-analytical area of the microbiology laboratory. The project is structured considering DMAIC problem-solving methodology. Main lean tools used for the supply process analysis and optimization were Gemba Walk, Value Stream Analysis (VSA) and mistake proofing. After project results validation with ICU and microbiology specialists, the next steps are the pilot implementation of the process improvement measures and their impact evaluation on the key performance indicators. The development of a lean concept, eliminating the waste and increasing the added-value of the blood culture samples ordering and supply process, improves the efficiency of the blood culture diagnosis process reducing the lead-time and impacting directly on the patient.
Analyzing the Influence of Dressing Parameters on the Real Depth of Cut during Rotary Dressing of Vitrified Bonded CBN Grinding Wheels
Authors: Martin Einar , Godino Leire , Álvarez Jorge , Sánchez José Antonio
Published: October 2023

Grinding is a widely used process in many industries due to the precise geometric tolerances and excellent surface finishes it can offer, which makes it very useful when high quality parts have to be manufactured. Due to the wear that the grinding wheel suffers, a process known as dressing is periodically carried out to recover the cutting ability of the wheel. Dressing is an extremely important part of the grinding process, as it can alter and improve the cutting conditions of the wheel.During the dressing of vitrified bonded CBN wheels, the real dressing depth of cut is significantly lower than the theoretical depth of cut, leading to dimensional errors in the dressed grinding wheel, which consequently translate into the ground part. However, while deformations during grinding have been widely studied, this phenomenon has not been yet analyzed during dressing. Therefore, the main objective of this work is to determine the influence of the dressing parameters on the real depth of cut. Also, the effect of dresser wear and the deformations has been determined separately.To this end, a new methodology has been developed to measure the real depth of cut using a laser displacement sensor. Moreover, experimental tests have been carried out to characterize the influence that the dressing speed ratio (qd) and set depth of cut (ad_set) have on the actual depth of cut (ad_real). It has been seen that the use of negative qd results in a more accurate real depth of cut, and therefore a more efficient dressing process. While the error using negative qd is about 10 %, using positive qd is about 25 %.
Ductile Fracture Analysis in Nakazima vs. SPIF Tests
Authors: Borrego Puche Marcos , Palomo David , Martínez-Donaire Andrés J. , Morales-Palma Domingo , Vallellano Carpoforo
Published: October 2023

The Forming Limit Curve (FLC) shows the limit combinations of principal strains on the sheet surface that can be successfully achieved before necking appears. Above the FLC, Atkins in 1996 proposed the existence of an unstable region where localized necking develops before reaching at the Fracture Forming Limit (FFL). Only the methodology for the evaluation of the FLC is covered in an international standard ISO 12004-2, where the basis of the tests consists of stretching of a previously clamped sheet blank over a Marciniak or Nakazima punch, providing an almost linear strain path in the sheet surface of the specimen. On the contrary, in single-point incremental forming (SPIF) processes, the hemispherical-shaped tools usually employed are relatively small compared to the general dimension of the specimen, producing a highly nonlinear strain path derived from both the incremental nature of the process and the severe curvature imposed by the small radii of the punches used in the forming process.Many authors have observed fracture strains in SPIFed samples well above the FFL obtained with Nakazima tests under the ISO 12004-2 standard. At the macroscopic level, the reason for this behaviour has been explained mainly based on the effect of bending and the difference in the stress triaxiality level, among others. This research analyzes the initiation of ductile fracture in Nakazima and SPIF specimens under a scanning electron microscope to elucidate the reasons of those differences at the microscopic level.
A Prototype of the Digital Twin of an Aerospace Industrial Production Line
Authors: Domínguez-Domínguez Guzman , Romero Marcelo , Morales-Palma Domingo , Oliva Manuel , Mas Fernando
Published: October 2023

In recent years, manufacturing companies have become more flexible and reconfigurable to adapt to new manufacturing paradigms and market demands. Simulation technology, which is one of the enablers of Industry 4.0, is usually used to evaluate the performance of manufacturing lines to predict their response against some manufacturing scenario. The concept of a digital twin has gained popularity in the last years. A digital twin is defined as a virtual system connected to the physical system that replicates its behavior. In this paper, a conceptual design of a digital twin-based manufacturing system is established. This includes the hierarchy of virtual elements, the relations between physical and virtual elements, and the definition of the data flow and type. A discrete event simulator has been developed to act as the digital twin of an anodizing treatment line. The simulator is connected to company systems through a neutral interface that feeds the simulator with the current manufacturing plan. The standalone digital twin has been validated using real data and allows one to perform what-if simulations in real time.