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Journal articles on the topic 'Certification de durabilité'

Author: Grafiati

Published: 1 June 2024

Last updated: 31 July 2025

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1

Piketty, Marie-Gabrielle, Maria-Célia Martins De Souza, and Isabel Garcia Drigo. "Certification environnementale et durabilité au Brésil." Économie rurale, no. 303-304-305 (June 1, 2008): 169–83. http://dx.doi.org/10.4000/economierurale.674.

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Fauque, Xavier, and Lisa Pinamonti. "La certification PEFC : un nouveau standard de gestion durable." Revue forestière française 75, no. 3 (2025): 223–31. https://doi.org/10.20870/revforfr.2024.8337.

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La validation du nouveau référentiel PEFC (Programme de reconnaissance des certifications forestières) questionne conjointement le droit forestier et le droit de la propriété intellectuelle. Les engagements pour le développement durable impliquent une pluralité de défis : les mécanismes de contrôle de la procédure de certification doivent garantir sérieux et transparence des démarches ; la responsabilisation croissante des acteurs n’écarte pas l’importance d’un contrôle indépendant ; le nouveau référentiel poursuit ses avancées garantissant au consommateur plus de durabilité des ressources for

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3

Ren, Carina, and Rikke Becker Jacobsen. "Qu’est-ce qu’un label ? Formulation de l’identité à travers les systèmes de certification dans la construction de la nation post-coloniale groenlandaise." Études Inuit Studies 47, no. 1-2 (2023): 233–52. http://dx.doi.org/10.7202/1113391ar.

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Dans cet article, nous explorons le lien entre les systèmes de certification industrielle et la formulation de l’identité dans un contexte plus large d’indépendance du Groenland. Nous explorons les visions ethno-politiques et les interférences qui émanent du processus d’indépendance nationale comme outil heuristique, en nous appuyant sur trois labels de durabilité utilisés dans les secteurs de la pêche, de la chasse et du tourisme au Groenland. En nous basant sur leur conception de la durabilité, nous cherchons à savoir si et dans quelle mesure les systèmes de certification volontaires et enre

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Tytgat, Luc. "La réglementation, la certification et leurs effets." Annales des Mines - Réalités industrielles Mai 2024, no. 2 (2024): 18–21. http://dx.doi.org/10.3917/rindu1.242.0018.

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L’article traite des défis et des efforts de transformation nécessaires dans l’industrie aéronautique pour faire face à la concurrence et au changement climatique. Il souligne la nécessité pour l’industrie d’adopter des carburants d’aviation durables (SAF) et d’explorer les technologies d’avions électriques, hybrides et à hydrogène pour réduire les émissions de carbone. Le "Green Deal" de l’Union européenne et des initiatives comme "ReFuelEU Aviation" sont mentionnés comme stratégies clés pour décarboner l’aviation en encourageant l’intégration des SAF. L’Agence européenne de la sécurité aérie

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Karsenty, Alain. "Certification et gestion durable des forêts : entre commerce et recherche." BOIS & FORETS DES TROPIQUES 251 (March 1, 1997): 76–77. https://doi.org/10.19182/bft1997.251.a19937.

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Pour évaluer la capacité d'une structure à bien gérer une exploitation forestière, et pour apprécier sa durabilité, deux grands types de critères sont utilisés :1 - les critères et indicateurs de « systèmes de management ». Ils se réfèrent aux normes ISO 14000 et 14001 qui considèrent la politique et la planification, la mise en œuvre, les procédures et suivi et de révision. Ils sont moins contraignants.2 - les critères et indicateurs de performance, orientés sur l'état : niveau des dégâts d'abattage, structure de la forêt après exploitation, proposition de travailleurs recrutés au sein de la

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Gond, Gautier, Julie Demaret, Mamadou Ndione, and Laetitia Legalais. "IAG et audit durabilité dans les cabinets : lecture par la théorie des capacités dynamiques." Management & Sciences Sociales 41, no. 2 (2025): 46–65. https://doi.org/10.3917/mss.041.0046.

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Cet article examine l'intégration de l'intelligence artificielle générative (IAG) dans les processus d’audit de durabilité au sein des cabinets d’audit légal. Dans cette optique, nous avons mobilisé la théorie des capacités dynamiques et conduit quatorze entretiens semi-directifs qui ont été précédés d’observations non participantes. Deux résultats principaux sont mis en évidence. Premièrement les cabinets utilisent l’IAG comme un levier stratégique, qui leur permet de gagner du temps et de renforcer leur avantage concurrentiel face à l’émergence de nouveaux acteurs sur le marché de la certifi

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DI ROBERTO, Hadrien, Carolina MILHORANCE, Ndèye SOKHNA DIENG, and Elsa SANIAL. "L’agroforesterie en contexte post-forestier : perspectives et controverses d’une mise à l’agenda politique en Côte d’Ivoire." BOIS & FORETS DES TROPIQUES 356 (September 4, 2023): 81–91. http://dx.doi.org/10.19182/bft2023.356.a37121.

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En Côte d’Ivoire, l’agroforesterie devient une notion incontournable après une déforestation massive pour les cultures de plantation. Depuis les années 2010, le terme se généralise dans le vocabulaire politique, les normes internationales de durabilité et la communication des entreprises chocolatières. Cette note examine comment l'agroforesterie s’est imposée dans l'agenda politique ivoirien. Adoptant une approche compréhensive et à partir d’une soixantaine d’entretiens et des documents politiques, elle analyse la manière dont la notion d’agroforesterie est mobilisée en Côte d’Ivoire, les inst

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Ruf, François. "Les standards dits durables appauvrissent-ils les planteurs de cacao ? Interactions entre déforestation en Côte d’Ivoire et au Libéria, crédit à l’achat d’engrais et baisse des cours." Cahiers Agricultures 30 (2021): 38. http://dx.doi.org/10.1051/cagri/2021024.

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Pendant des siècles, combinés avec le travail de migrants, la forêt et la rente forêt ont été les principaux facteurs de production du cacao. C’est le modèle universel du cacao, qui a fait de la Côte d’Ivoire le premier producteur mondial. Mais le niveau de déforestation est tel qu’une partie des planteurs doivent trouver des alternatives à la rente forêt, notamment l’engrais minéral. Cet intrant chimique est de fait un facteur d’amélioration des rendements et a priori des revenus. Cependant, si la consommation d’engrais chimique est poussée par le « système », composé des Transnational Corpor

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VEISSIER, I., R. BOTREAU, and P. PERNY. "Évaluation multicritère appliquée au bien-être des animaux en ferme ou à l’abattoir : difficultés et solutions du projet Welfare Quality®." INRAE Productions Animales 23, no. 3 (2010): 269–84. http://dx.doi.org/10.20870/productions-animales.2010.23.3.3308.

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Face au développement en Europe de programmes de certification d’élevages mettant en avant le respect du bien-être animal, le projet Welfare Quality® a proposé à l’Union Européenne d’établir un modèle d’évaluation globale des exploitations (fermes ou abattoirs) au regard du bien-être des animaux. Ce modèle repose sur une évaluation multicritère dans laquelle 12 critères de bien-être, regroupés en 4 principes, ont été définis. Après avoir identifié les mesures nécessaires pour vérifier qu’une exploitation est conforme aux différents critères, le modèle a été progressivement construit. Il abouti

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Molent, L., and R. Singh. "Using the lead crack framework to reduce durability test duration." Aeronautical Journal 124, no. 1276 (2019): 814–20. http://dx.doi.org/10.1017/aer.2019.73.

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ABSTRACTAircraft full-scale fatigue tests are expensive and time-consuming to conduct but are a critical item on the certification path of any aircraft design or modification. This paper outlines a proposal that trades cycling hours for increased detail in the teardown of a metallic test article. A method for determining the equivalent demonstrated crack size (and crack growth curve) at the mandated test life utilising the lead crack framework is demonstrated. It is considered that the test duration can be significantly reduced, whilst still achieving all the desired outcomes of a certificatio

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Jones, Rhys, Daren Peng, John G. Michopoulos, and Anthony J. Kinloch. "Requirements and Variability Affecting the Durability of Bonded Joints." Materials 13, no. 6 (2020): 1468. http://dx.doi.org/10.3390/ma13061468.

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This paper firstly reveals that when assessing if a bonded joint meets the certification requirements inherent in MIL-STD-1530D and the US Joint Services Standard JSSG2006 it is necessary to ensure that: (a) There is no yielding at all in the adhesive layer at 115% of design limit load (DLL), and (b) that the joint must be able to withstand design ultimate load (DUL). Secondly, it is revealed that fatigue crack growth in both nano-reinforced epoxies, and structural adhesives can be captured using the Hartman–Schijve crack growth equation, and that the scatter in crack growth in adhesives can b

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Obinna Iwuanyanwu, Ifechukwu Gil-Ozoudeh, Azubuike Chukwudi Okwandu, and Chidiebere Somadina Ike. "The role of green building materials in sustainable architecture: Innovations, challenges, and future trends." International Journal of Applied Research in Social Sciences 6, no. 8 (2024): 1935–50. http://dx.doi.org/10.51594/ijarss.v6i8.1476.

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The role of green building materials is pivotal in advancing sustainable architecture, as they contribute significantly to reducing the environmental impact of construction and enhancing the overall sustainability of buildings. Green building materials are defined by their eco-friendly properties, which include energy efficiency, resource conservation, and minimal environmental harm. This review explores the latest innovations in green building materials, highlighting advances such as recycled and upcycled materials, biodegradable and bio-based products, and high-performance insulation technol

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Chowdhury, Nabil, Wing Kong Chiu, and John Wang. "A Review of Damage Tolerant Design, Certification and Repair in Metals Compared to Composite Materials." Advanced Materials Research 891-892 (March 2014): 1597–602. http://dx.doi.org/10.4028/www.scientific.net/amr.891-892.1597.

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A review of some of the various fatigue models introduced over the years for both metallic materials, in particular aluminium alloys followed by fatigue and durability concerns associated with composite materials. The move towards light weight and high stiffness structures that have good fatigue durability and corrosion resistance has led to the rapid move from metal structures to composite structures. With this brings the added concern of certifying new components as the damage mechanisms and failure modes in metals differ significantly than composite materials such as carbon fiber reinforced

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Abdi, F., Y. Xue, M. Garg, B. Farahmand, J. Housner, and K. Nikbin. "An analysis approach toward FAA certification for damage tolerance of aircraft components." Aeronautical Journal 118, no. 1200 (2014): 181–96. http://dx.doi.org/10.1017/s0001924000009064.

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Abstract This paper presents a novel analysis approach by considering multiple crack interaction in achieving FAA certification for durability and damage tolerance of exterior attachment installations on an aircraft fuselage according to FAA policy on Certification by Analysis-Supported-by-Test (CAST). Durability and damage tolerance evaluation of an aircraft component requires assessment of damage initiation and fatigue crack propagations under service loading, which consists of complex loading types, paths and variable amplitudes. Both simulation and service experience showed that multiple c

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Peng, Daren, Rhys Jones, Andrew S. M. Ang, Victor Champagne, Aaron Birt, and Alex Michelson. "A Numerical Study into the Effect of Machining on the Interaction between Surface Roughness and Surface Breaking Defects on the Durability of WAAM Ti-6Al-4V Parts." Metals 12, no. 7 (2022): 1121. http://dx.doi.org/10.3390/met12071121.

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The airworthiness certification of military aircraft requires a durability analysis be performed using linear elastic fracture mechanics (LEFM). Furthermore, such analyses need to use a valid small crack growth equation. This paper focuses on the effect of rough surfaces and the effect of machining the surface on the durability of AM parts using LEFM and a valid small crack growth equation for the material. To this end, this paper analyses the effect of surface roughness on wire and arc additively manufactured (WAAM) Ti-6Al-4V titanium parts and the effect of machining on the durability of a p

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Peng, Daren, Victor K. Champagne, Andrew S. M. Ang, et al. "Computing the Durability of WAAM 18Ni-250 Maraging Steel Specimens with Surface Breaking Porosity." Crystals 13, no. 3 (2023): 443. http://dx.doi.org/10.3390/cryst13030443.

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The durability assessment of additively manufactured parts needs to account for both surface-breaking material discontinuities and surface-breaking porosity and how these material discontinuities interact with parts that have been left in the as-built state. Furthermore, to be consistent with the airworthiness standards associated with the certification of metallic parts on military aircraft the durability analysis must be able to predict crack growth, as distinct from using a crack growth analysis in which parameters are adjusted so as to match measured data. To partially address this, the au

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Kundu, Sudip, Rhys Jones, Daren Peng, et al. "Review of Requirements for the Durability and Damage Tolerance Certification of Additively Manufactured Aircraft Structural Parts and AM Repairs." Materials 13, no. 6 (2020): 1341. http://dx.doi.org/10.3390/ma13061341.

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The USAF requirements for the durability and damage tolerance certification for additively manufactured (AM) aircraft structural parts, which are detailed in Structures Bulletin EZ-19-01, raise a number of new and, as yet, unanswered questions. The present paper attempts to address three questions: How to perform a fracture mechanics-based analysis of crack growth in an AM part so as to account for the residual stresses, how to perform a fracture mechanics-based durability analysis of a cold spray repair so as to account for both the induced residual stresses and the presence of multiple co-lo

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Zbrowski, Andrzej, and Krzysztof Matecki. "Test Stand for Durability Tests of Rotating Elements of Office Chairs." Solid State Phenomena 223 (November 2014): 155–62. http://dx.doi.org/10.4028/www.scientific.net/ssp.223.155.

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This paper presents the purpose, concept, principles of functioning, design and construction of a stand intended for testing the durability of rotational elements of office chairs. It shows the use of the stand for certification tests in accordance with the PN-EN 1335:2009 standard. It also discusses how tests on swivelling and the durability of wheels and the base of office chairs should be conducted using the developed stand. The authors present test conditions and discuss the instrumentation necessary to induce static loads during the investigations. They also identify the possibilities to

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Hostev, Yuriy, Lev Rumiantsev, and Tetyana Kostrulova. "QUALITY CONTROL OF HORIZONTAL ROAD MARKING APPLICATION DURING CERTIFICATION OF MARKING MACHINES." Avtoshliakhovyk Ukrayiny, no. 3 (259) ’ 2019 (October 17, 2019): 24–29. http://dx.doi.org/10.33868/0365-8392-2019-3-259-24-29.

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Horizontal road marking along with road signs is an essential factor that ensures road safety. The quality of road markings largely depends on the quality of the application. In today’s, for road marking are used road marking machines. They are complex high-performance automated units requiring highly professional operators. Stink to classify for the way of marking, design of the running gear, base machine, type of drive, productivity and the most important signs. The article describes the principles of the operation of marking machines and the main technical characteristics of machines from l

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Mamun, Muhammad Ziaulhaq, and Sazidur Rahman Talukder. "University Students’ Perception of Quality: A Case of Bangladesh." International Journal of Research and Innovation in Social Science VIII, IIIs (2024): 161–81. http://dx.doi.org/10.47772/ijriss.2024.803011s.

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This paper explored the quality perception of university students of Bangladesh in terms of 57 quality dimensions. A total of 258 responses from both public and private universities with different demographics are considered using non-probability convenient sampling technique. The responses are found reliable and valid. The most important quality dimensions observed by the respondents are value for money, completeness, privacy, serviceability, performance, durability, accurate quantity, reliability, taste, sound, easy identification, and conformance. The very close to highly agreed attributes

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Peng, Daren, Caixian Tang, Jarrod Watts, et al. "Durability Analysis of Cold Spray Repairs: Phase I—Effect of Surface Grit Blasting." Materials 17, no. 11 (2024): 2656. http://dx.doi.org/10.3390/ma17112656.

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This paper presents the results of an extensive investigation into the durability of cold spray repairs to corrosion damage in AA7075-T7351 aluminium alloy specimens where, prior to powder deposition, the surface preparation involved grit blasting. In this context, it is shown that the growth of small naturally occurring cracks in cold spray repairs to simulated corrosion damage can be accurately computed using the Hartman–Schijve crack growth equation in a fashion that is consistent with the requirements delineated in USAF Structures Bulletin EZ-SB-19-01, MIL-STD-1530D, and the US Joint Servi

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Maixent Loubouth, Severin Jean, Sorel Nzaba, Gildas Ngouono Ngakali, and Narcisse Malanda. "Management and quality control of construction materials standards, techniques, and challenges." Journal of Building Materials and Structures 11, no. 2 (2024): 168–74. https://doi.org/10.34118/jbms.v11i2.4082.

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Construction materials are crucial for the safety and longevity of structures, as they must withstand environmental conditions and be durable. Adherence to stringent standards and regulations is essential for materials like concrete, steel, wood, bricks, and composites. Common defects include manufacturing flaws, storage issues, non-compliance with standards, and variability in quality. To minimize quality problems, rigorous control techniques like material testing, visual inspections, performance testing, and certifications are applied. Proper finishing enhances aesthetics, durability, and pe

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Podstawka, Michal, Vladimír Snop, Petr Bělský, and Kristýna Kutiová. "Non-destructive Inspection of Composite Aileron during Fatigue Test." MATEC Web of Conferences 349 (2021): 03016. http://dx.doi.org/10.1051/matecconf/202134903016.

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The operational safety and reliability of an airplane must be an integral part of its design. The use of suitable materials that pass material certification tests is very important for a new aircraft design. The next part is testing specific samples, sub-components, and components such as the aileron. The paper deals with a non-destructive evaluation of composite primary structural part fatigue tests in accordance with damage tolerance philosophy considering impact damage presence. NDT methods such as visual, eddy current, and ultrasonic testing included phased array technique, are used for th

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ORIFICI, ADRIAN C., RODNEY S. THOMSON, RICHARD DEGENHARDT, CHIARA BISAGNI, and JAVID BAYANDOR. "AN ANALYSIS TOOL FOR DESIGN AND CERTIFICATION OF POSTBUCKLING COMPOSITE AEROSPACE STRUCTURES." International Journal of Structural Stability and Dynamics 10, no. 04 (2010): 669–81. http://dx.doi.org/10.1142/s0219455410003671.

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In aerospace, carbon-fiber-reinforced polymer (CFRP) composites and postbuckling skin-stiffened structures are key technologies that have been used to improve structural efficiency. However, the application of composite postbuckling structures in aircraft has been limited due to concerns related to both the durability of composite structures and the accuracy of design tools. In this work, a finite element analysis tool for design and certification of aerospace structures is presented, which predicts collapse by taking the critical damage mechanisms into account. The tool incorporates a global–

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Jones, Rhys, Calvin Rans, Athanasios P. Iliopoulos, John G. Michopoulos, Nam Phan, and Daren Peng. "Modelling the Variability and the Anisotropic Behaviour of Crack Growth in SLM Ti-6Al-4V." Materials 14, no. 6 (2021): 1400. http://dx.doi.org/10.3390/ma14061400.

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The United States Air Force (USAF) Guidelines for the Durability and Damage Tolerance (DADT) certification of Additive Manufactured (AM) parts states that the most difficult challenge for the certification of an AM part is to establish an accurate prediction of its DADT. How to address this challenge is the focus of the present paper. To this end this paper examines the variability in crack growth in tests on additively manufactured (AM) Ti-6Al-4V specimens built using selective layer melting (SLM). One series of tests analysed involves thirty single edge notch tension specimens with five buil

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Bodnar, Larysa, Serhii Zavhorodnii, Serhii Stepanov, and Vitalii Yastrubinetskyi. "ANALYSIS OF DURABILITY OF REINFORCED CONCRETE STRUCTURES OF BRIDGES ACCORDING TO THEIR TYPICAL DESIGNS." Avtoshliakhovyk Ukrayiny 264, no. 4 (2020): 58–63. http://dx.doi.org/10.33868/0365-8392-2020-4-264-58-63.

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Thousands of bridges built in the 20th century are operated on Ukrainian roads. In the limited funding of the road industry of Ukraine, the age of highway bridges is constantly increasing, the number of defects in structures is growing. The largest number of defects is concentrated in the bridge spans. The main part of the bridge spans consists of prefabricated reinforced concrete beams, manufactured in factories of reinforced concrete structures according to standard designs developed in the middle of the last century. As a result of long-term operation of bridges, the shortcomings of these d

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Strang, Marcus, Paola Leardini, Arianna Brambilla, and Eugenia Gasparri. "Mass Timber Envelopes in Passivhaus Buildings: Designing for Moisture Safety in Hot and Humid Australian Climates." Buildings 11, no. 10 (2021): 478. http://dx.doi.org/10.3390/buildings11100478.

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The uptake of buildings employing cross-laminated timber (CLT) assemblies and designed to Passivhaus standard has accelerated internationally over the past two decades due to several factors including responses to the climate crisis by decarbonising the building stock. Structural CLT technology and the Passivhaus certification both show measurable benefits in reducing energy consumption, while contributing to durability and indoor comfort. However, there is a general lack of evidence to support a fast uptake of these technologies in Australia. This paper responds to the compelling need of prov

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Kang, Keon Ki, Su Yeon Kim, Jun Woo Park, and Jeong Hun Park. "Limitations and alternatives of the System for Post-use Treatment of Biodegradable Plastic." Journal of Korean Society of Environmental Engineers 47, no. 7 (2025): 509–19. https://doi.org/10.4491/ksee.2025.47.7.509.

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Plastics are widely used in various industries based on their wide utilization and durability. However, there is a problem of plastic waste treatment because it takes a very long time to decompose naturally. As a result, biodegradable plastics that can be naturally decomposed by microorganisms have been attracting attention, and the demand is continuously increasing. However, questions have been raised about the proper management and treatment of biodegradable plastics in the domestic waste management system. This is because biodegradable plastics are collected together with general plastics a

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Chowdhury, Nabil, Wing Kong Chiu, and John Wang. "Review on the Fatigue of Composite Hybrid Joints Used in Aircraft Structures." Advanced Materials Research 891-892 (March 2014): 1591–96. http://dx.doi.org/10.4028/www.scientific.net/amr.891-892.1591.

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The use of composite materials as a replacement for commonly used metals such as aluminium and steel are increasing in the engineering industry, particularly in the aerospace sector. The move towards light weight and high stiffness structures that have good fatigue durability and corrosion resistance has led to the rapid move from metal to composites. This change allows for further flexibility in design and fabrication of various components and joints. There are three main categories of joints used in composite materials – mechanically fastened joints, adhesively bonded joints and the combinat

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Lappo, I., Y. Dobryshkin, M. Herashchenko, and О. Chervotoka. "PERSPECTIVE WAYS OF DEVELOPMENT OF THE LABORATORY TESTING FACILITIES OF THE ARMED FORCES OF UKRAINE." Наукові праці Державного науково-дослідного інституту випробувань і сертифікації озброєння та військової техніки, no. 3 (May 28, 2020): 67–76. http://dx.doi.org/10.37701/dndivsovt.3.2020.09.

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The world practice of creating and modernizing specimens of armament and military equipment envisages carrying out numerous tests, checks and evaluations of the current technical conditions throughout the life cycle. The task of organizing and carrying out of tests, in particular mechanical, electrical and climatic, at the State Scientific Research Institute of Armament and Military Equipment Testing and Certification is entrusted to the scientific research laboratory that is a part of the scientific and technical complex of measurements of the Institute. Currently, the laboratory is not

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Moroney, Patrick D., and Amrit Shankar Verma. "Durability and Damage Tolerance Analysis Approaches for Wind Turbine Blade Trailing Edge Life Prediction: A Technical Review." Energies 16, no. 24 (2023): 7934. http://dx.doi.org/10.3390/en16247934.

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The size of wind turbine blades is increasing rapidly, and they are being installed in remote offshore locations. Consequently, it is essential to focus on improving the design and maintenance procedures in the blade industry to meet the growing demand. Of particular concern is the long-term operational performance of the wind turbine blade trailing edge. In this paper, we discuss the application of durability and damage tolerance analysis (DADTA) approaches to trailing edge service life prediction. DADTA is mandated in the aerospace sector to support airworthiness certification and to provide

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Song, Chanyoung, Saenun Song, Myungkyu Lee, and Ik Kim. "Carbon Emission Reduction in Highland Chinese Cabbage Production through Life Cycle Assessment: Comparison with the Low-Carbon Agricultural Product Certification System." Korean Journal of Life Cycle Assessment 26, no. 1 (2025): 35–43. https://doi.org/10.62765/kjlca.2025.26.1.35.

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This study conducted a Life Cycle Assessment (LCA) to quantify greenhouse gas (GHG) emissions and identify mitigation opportunities in Chinese cabbage cultivation in Yongpyeong-myeon, Pyeongchang-gun, South Korea. Following ISO 14067:2018, the cradle-to-gate system boundary was set, and the functional unit was defined as one head of Chinese cabbage. Primary data were collected through researcher-managed field trials. GHG emissions were calculated as 0.9331 kg CO2-eq per head, 0.432 kg CO2-eq per kilogram, and 0.293 kg CO2-eq per 1,000 KRW of market value. Fertilizer application was identified

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Buson, Márcio, Humberto Varum, and Marco Antônio Rezende. "First Impressions on Three-Dimensional Printing with Earth-Based Mortar at the Faculty of Engineering of the University of Porto." Buildings 14, no. 2 (2024): 312. http://dx.doi.org/10.3390/buildings14020312.

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Three-dimensional (3D) printing with earth-based mortar is still under development and faces challenges. Optimising the mortar mixture, improving structural strength, determining the relationship between the printing speed and the amount of extruded material, and ensuring long-term durability are areas that are being refined. Additionally, regulatory and certification issues must also be considered to ensure the safety and compliance of 3D printed structures. This paper presents for discussion the records, analyses, studies, and considerations regarding initial initiatives involving 3D printin

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Limpinska, Liudmyla. "Eco-Friendly Materials in the Production of Wedding Dresses: Prospects for the Industry." Universal Library of Innovative Research and Studies 02, no. 02 (2025): 32–38. https://doi.org/10.70315/uloap.ulirs.2025.0202005.

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The conducted study constitutes a comprehensive analysis of the prospects for applying environmentally friendly materials in the production of wedding gowns, grounded in rising concerns about the sustainability of the fashion industry and increasing demand for green products. The focus lies on innovative biodegradable and renewable fibers—from organic cotton and bamboo fiber to biopolymeric and recycled synthetic fabrics—as well as on their manufacturing processes and technological characteristics. By employing a systematic review of scientific literature and statistical data, the primary driv

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Jones, Rhys, Ramesh Chandwani, Chris Timbrell, Anthony J. Kinloch, and Daren Peng. "Thoughts on the Importance of Similitude and Multi-Axial Loads When Assessing the Durability and Damage Tolerance of Adhesively-Bonded Doublers and Repairs." Aerospace 10, no. 11 (2023): 946. http://dx.doi.org/10.3390/aerospace10110946.

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Adhesively bonded doublers and adhesively bonded repairs are extensively used to extend the operational life of metallic aircraft structures. Consequently, this paper focuses on the tools needed to address sustainment issues associated with both adhesively bonded doublers and adhesively bonded repairs to (metallic) aircraft structures, in a fashion that is consistent with the building-block approach mandated in the United States Air Force (USAF) airworthiness certification standard MIL-STD-1530D and also in the United States (US) Joint Services Structural Guidelines JSSG-2006. In this context,

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Xu, Yilin. "Revitalizing Diesel Technology in Aircraft: A Path Toward Fuel Efficiency and Sustainability." Highlights in Science, Engineering and Technology 119 (December 11, 2024): 823–28. https://doi.org/10.54097/rw3jvy25.

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As the aviation industry seeks to reduce its environmental impact and improve fuel efficiency, diesel engines have re-emerged as a promising alternative to traditional aviation fuels. This paper explores the historical development, advantages, challenges, and current applications of diesel engines in aviation. With their superior fuel efficiency, lower emissions, and enhanced durability, diesel engines offer significant potential for reducing operational costs and contributing to the industry's sustainability goals. However, challenges related to engine weight, performance limitations, certifi

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Laeli Fadloli, Hadi Susilo Arifin, and Wonny Ahmad Ridwan. "Study on green concrete (porous concrete) sustainability in order to support the sustainable construction in Indonesia." Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) 13, no. 3 (2023): 432–43. http://dx.doi.org/10.29244/jpsl.13.3.432-443.

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Currently implementation progress of green concrete (porous concrete0 is still very slow. The sustainable construction launched by the government has also not received a positive response from the construction sector. Greenery Open Spaces (RTH) and urban spatial planning in Indonesia have not accommodated the type of water-friendly pavement (porous concrete). Buildings that must meet the 30% of Green Base Cooeficient (KDH) also have not included the criteria for water-friendly concrete pavements. From the results of the Multi-Dimensional Scaling (MDS) analysis using Rapfish-R, it is known that

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Chiu, W. K., R. Jones, and M. Chao. "A Visco-Plastic Analysis of Bonded Joints under Complex Loading." Engineering Plastics 6, no. 1 (1998): 147823919800600. http://dx.doi.org/10.1177/147823919800600103.

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Adhesively bonded joints are traditionally designed using a single stress/strain curve to describe the mechanical behaviour of the adhesive. This paper addresses the validity of this assumption, given that the properties of film adhesives commonly used in bonded joints (e.g. FM 73) have been shown to demonstrate significant time dependencies both at room and high temperatures. To this end, a series of finite element analysis were conducted where the time dependent properties of the adhesive were modelled using a unified plasticity theory. The findings of this work show that, when performing ce

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Chiu, W. K., R. Jones, and M. Chao. "A Visco-Plastic Analysis of Bonded Joints under Complex Loading." Polymers and Polymer Composites 6, no. 1 (1998): 15–24. http://dx.doi.org/10.1177/096739119800600103.

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Adhesively bonded joints are traditionally designed using a single stress/strain curve to describe the mechanical behaviour of the adhesive. This paper addresses the validity of this assumption, given that the properties of film adhesives commonly used in bonded joints (e.g. FM 73) have been shown to demonstrate significant time dependencies both at room and high temperatures. To this end, a series of finite element analysis were conducted where the time dependent properties of the adhesive were modelled using a unified plasticity theory. The findings of this work show that, when performing ce

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Chia, Diana Carolina. "Gouvernance de la décarbonisation des grands événements." Le Climatoscope, no. 6 (2024): 66–70. https://doi.org/10.7202/1116188ar.

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Alors que les regards du monde convergent vers les grands événements, l’impact environnemental qui les accompagne soulève des questions cruciales quant à la gouvernance de leur décarbonisation. Cet article explore les défis majeurs rencontrés dans cette quête de durabilité, notamment l’efficacité des instruments politiques, tels que les normes et les certifications environnementales. L’évaluation de ces outils révèle des lacunes notables, telles que le manque de clarté dans la délimitation des frontières opérationnelles du bilan GES, l’inefficacité des systèmes de vérification existants et les

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Pellizzon, Nayara Donelli, Alan Ricardo da Silva, and Gustavo Garcia Otto. "Method for Setting Weight Tolerance Limits in High-Speed Weigh-in-Motion Systems: A Case Study in Brazil." Sustainability 14, no. 12 (2022): 7039. http://dx.doi.org/10.3390/su14127039.

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High-speed weighing systems are considered a potential tool to restrain overloaded vehicles traffic, since this practice promotes threats to the infrastructure’s durability and to citizens’ safety. In view of the discussion on the certification of such systems, a method to define the weight tolerance limits of heavy goods vehicles was proposed in this work, using statistical experimentation methods. The method was applied to a case study in Brazil, which considered a high-speed weighing system and three known vehicles (3C, 2S3, and 3S3). The vehicles were loaded with gravel and the bending pla

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Priddy, Lucy P., and Timothy W. Rushing. "Development of Laboratory Testing Protocol for Rapid-Setting Cementitious Material for Airfield Pavement Repairs." Transportation Research Record: Journal of the Transportation Research Board 2290, no. 1 (2012): 89–98. http://dx.doi.org/10.3141/2290-12.

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Many commercial off-the-shelf products for repairing portland cement concrete (PCC) pavements provide short set times, high early strengths, and the durability to withstand aircraft traffic. Twenty-five rapid-setting cementitious materials were investigated through laboratory and field evaluations to determine their suitability for repairing critical PCC airfield pavements. Standard laboratory tests were performed to characterize the properties of the materials and provide a protocol for assessing their suitability for field repairs. Criteria for using rapid-setting cementitious materials for

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GÖK, Abdülkerim. "Investigation of the Turkey’s Climate for Service Lifetime of Photovoltaic Modules: A Mapping Approach." Gazi University Journal of Science Part A: Engineering and Innovation 10, no. 4 (2023): 524–41. http://dx.doi.org/10.54287/gujsa.1357247.

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The longevity of photovoltaic systems during real-world operation is a concern that needs to be addressed. Polymeric materials used in module constructions, particularly encapsulants, are susceptible to hydrolysis, which can lead to cell metallization corrosion and result in power loss and shortened service lifetime. One of the test protocols within the current certification standard of IEC 61215 is damp heat exposure, which subjects the modules to constant temperature and humidity level for a specific duration (85°C/85%RH for 1000 hours). However, its effectiveness as a reliability test for l

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Broomfield, R. W., D. A. Ford, J. K. Bhangu, et al. "Development and Turbine Engine Performance of Three Advanced Rhenium Containing Superalloys for Single Crystal and Directionally Solidified Blades and Vanes." Journal of Engineering for Gas Turbines and Power 120, no. 3 (1998): 595–608. http://dx.doi.org/10.1115/1.2818188.

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Turbine inlet temperatures over the next few years will approach 1650°C (3000°F) at maximum power for the latest large commercial turbofan engines, resulting in high fuel efficiency and thrust levels approaching 445 KN (100,000 lbs.). High reliability and durability must be intrinsically designed into these turbine engines to meet operating economic targets and ETOPS certification requirements. This level of performance has been brought about by a combination of advances in air cooling for turbine blades and vanes, design technology for stresses and airflow, single crystal and directionally so

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Winfield, Emily C., Robin J. Rader, Alexander M. Zhivov, et al. "HVAC Best Practices in Arctic Climates." E3S Web of Conferences 246 (2021): 08004. http://dx.doi.org/10.1051/e3sconf/202124608004.

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Arctic climates provide unique challenges for designers of HVAC, plumbing, and thermal energy systems. The importance of considering the operation outside air temperatures, system reliability, and building resiliency cannot be understated. The paper describes best practice examples of robust and reliable systems with the emphasis on their redundancy, durability, and functionality. The paper also discusses the most common heating and ventilation system approaches used in arctic climate with the emphasis on the importance of a maintenance program that allows building operators to successfully tr

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Wang, Yuxin (Justin), and Hossam Abuel-Naga. "Unfired Bricks from Wastes: A Review of Stabiliser Technologies, Performance Metrics, and Circular Economy Pathways." Buildings 15, no. 11 (2025): 1861. https://doi.org/10.3390/buildings15111861.

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Unfired bricks offer a sustainable alternative to traditional fired bricks by enabling the large-scale reuse of industrial, construction, and municipal wastes while significantly reducing energy consumption and greenhouse gas emissions. This review contributes to eliminating knowledge fragmentation by systematically organising stabiliser technologies, performance metrics, and sustainability indicators across a wide variety of unfired brick systems. It thus provides a coherent reference framework to support further development and industrial translation. Emphasis is placed on the role of stabil

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Godja, Norica, and Florentina-Daniela Munteanu. "Environmentally Friendly Solutions as Potential Alternatives to Chromium-Based Anodization and Chromate Sealing for Aeronautic Applications." Coatings 15, no. 4 (2025): 439. https://doi.org/10.3390/coatings15040439.

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The adoption of chrome-free anodizing and sealing systems for aluminum alloys, particularly AA2024, is gaining prominence due to environmental and health concerns associated with traditional Cr(VI)-based processes. This study evaluates the environmental and economic impacts of sulfuric acid anodizing (SAA) combined with sealing based on fluorozirconate, molybdate, and cerate. Comparative analyses were conducted against conventional Cr(VI) systems and SAA with Cr(III) sealing, focusing on corrosion resistance, energy consumption, washing steps and material flows. The entire anodizing process wa

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Shahid, Farzeen, Maqusud Alam, Jin-Young Park, et al. "Bioinspired Morphing in Aerodynamics and Hydrodynamics: Engineering Innovations for Aerospace and Renewable Energy." Biomimetics 10, no. 7 (2025): 427. https://doi.org/10.3390/biomimetics10070427.

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Bioinspired morphing offers a powerful route to higher aerodynamic and hydrodynamic efficiency. Birds reposition feathers, bats extend compliant membrane wings, and fish modulate fin stiffness, tailoring lift, drag, and thrust in real time. To capture these advantages, engineers are developing airfoils, rotor blades, and hydrofoils that actively change shape, reducing drag, improving maneuverability, and harvesting energy from unsteady flows. This review surveys over 296 studies, with primary emphasis on literature published between 2015 and 2025, distilling four biological archetypes—avian wi

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Banerjee, Sanjoy. "(Invited, Digital Presentation) Zinc-Based Energy Storage System Deployments and Developments for Transition to a Clean Energy Future." ECS Meeting Abstracts MA2022-01, no. 3 (2022): 455. http://dx.doi.org/10.1149/ma2022-013455mtgabs.

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Rechargeable zinc-based alkaline batteries are an attractive electrochemical energy storage option with zinc anode costs of $3/kWh at full (theoretical) 2 electron capacity. When paired with high-capacity, inexpensive cathodes like manganese dioxide, and accounting for incomplete utilization of the active materials capacities, inactive materials costs (like for current collectors etc.) and manufacturing costs, rechargeable zinc-manganese dioxide batteries costing about $20-30/kWh appear to be within reach. The challenges to meeting these cost targets, and the current status of such rechargeabl

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Grygorcewicz, Paweł. "Results from Laboratory Tests of New Electric Brake Prototype." Journal of KONES 26, no. 3 (2019): 47–52. http://dx.doi.org/10.2478/kones-2019-0056.

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Abstract The main idea of this article was to compare the results of new design electric brake to the older version of hydraulic brake in laboratory tests. The energy of braking should be very similar due to the same mass of the airplane. That is why the laboratory tests of both brakes were took place in the same stand. Of course, the parameters were similar but not at all. The main idea was to create the solution, which could be used in vehicle like airplane. The electric brakes could replace traditional hydraulic brake solution. The results could be interesting for every researcher who is in

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