Results 91 to 100 of about 1,909 (195)

Study of the Thermal and Hydrothermal Aging Effects on the Properties of 3D‐Printed Thermoplastic Polyurethane

Journal of Vinyl and Additive Technology, EarlyView.
Effect of post‐aging conditions on mechanical and thermal properties of FDM‐printed parts. ABSTRACT In this study, the thermal and hydrothermal aging of TPU produced with the FDM technique was simulated and subjected to a series of tests. The alterations in the internal structures of the samples that had been subjected to tensile, hardness, adhesive ...
Busra Eyri, Okan Gul, N. Gamze Karsli, Taner Yilmaz   +3 more
wiley   +1 more source

The institutional paradox of a substantivist conception of the economy in public policy: Insights from public procurement for solidarity economy in Ecuador

Annals of Public and Cooperative Economics, EarlyView.
Abstract Ecuador's 2008 Constitution advanced an ambitious substantive economic vision through Buen Vivir (Good Living), recognizing a plural economy which encompasses private, public and solidarity economy (SE) sectors. This paper aims to analyze public procurement programs in Ecuador, one of the flagship Buen Vivir policies for SE promotion.
Maria‐José Ruiz‐Rivera, Andreia Lemaître   +1 more
wiley   +1 more source

From plant to fabric: Environmental opportunities associated with annatto dye for sustainable development in the textile industry

Coloration Technology, EarlyView.
Abstract Natural dyes are compounds that occur naturally in several organisms and are classified based on chemical structure and application method. The literature cites several natural dyes used in industrial transformation processes. Annatto dye is used in the food industry, and its biological pigment is extracted from the annatto seed. However, this
Marcel Jefferson Gonçalves, Tania Maria Costa, Karine Thaise Rainert, Vera Lúcia Vogel Faustino dos Santos, Ivonete Oliveira Barcellos, Lorena Benathar Ballod Tavares   +5 more
wiley   +1 more source

Static Assessment of Hybrid Double‐Lap Bolted Joints With Additively Manufactured 316L Plates

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT The present study examines the static response and evaluates the accuracy of design standards and selected literature‐based design criteria in estimating the load capacity of the inner plates of double‐lap shear bolted connections in single‐ and double‐bolt configurations.
Hasan Almuhanna, Giacomo Torelli, Luca Susmel   +2 more
wiley   +1 more source

High Cycle Fatigue Properties of PM‐HIPed High‐Nitrogen Tool Steel: Effect of Surface Condition

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT This study explores the impact of surface condition on high‐cycle fatigue performance of a high‐nitrogen martensitic tool steel manufactured through powder metallurgy and hot isostatic pressing. In near‐net manufacturing applications, acid‐leaching pickling treatment and/or machining is used as a post‐treatment to remove the powder container ...
Faezeh Javadzadeh Kalahroudi, Dimitrios Nikas, Giulio Maistro, Mikael Grehk   +3 more
wiley   +1 more source

Investigation of residual stress characteristics and fatigue crack propagation behavior in GH4169 blisks fabricated by linear friction welding

Journal of Materials Research and Technology
This study established a thermal-mechanical coupling numerical simulation model for linear friction welding of GH4169 superalloy blisks using ABAQUS/Explicit and FRANC3D.
Xiawei Yang, Qiyuan Wang, Yuluan Liu, Yu Su, Mingxuan Yao, Haiyu Xu, Dingyi Shen, Zhenguo Guo, Tiejun Ma, Wenya Li   +9 more
doaj   +1 more source

Joining of Dissimilar Alloys Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo-0.1Si Using Linear Friction Welding. [PDF]

Materials (Basel), 2020
Rajan S, Wanjara P, Gholipour J, Kabir AS.   +3 more
europepmc   +1 more source

The Culture Clash of AI Adoption in Lean Quality Management. Resolving the Tensions at Siemens Electronics Works Amberg

Information Systems Journal, EarlyView.
ABSTRACT Artificial intelligence (AI) brings great potential for manufacturers, but clashes with the established culture due to the unexplainable and opaque nature of the solutions it provides. Having little experience in AI and machine learning (ML), most manufacturing leaders experience barriers implementing AI.
Benjamin van Giffen, Gunter Beitinger, Helmuth Ludwig, Bill Schiano, Konstantin Schmidt, Jan vom Brocke   +5 more
wiley   +1 more source

A Critical Review on Friction Stir Spot Welding of Aluminium Alloys: Tool, Mechanical, and Micro-Structural Characteristics

Crystals
Aluminum spot welding is extensively applied in automotive, aerospace, and rail sectors due to its favorable strength-to-weight ratio. While resistance spot welding (RSW) has been the traditional method, its high residual stresses, electrode wear, and ...
Manash J. Borah, Kanta Sarma, Yadaiah Nirsanametla, Barun Haldar, Arpan K. Mondal, Borhen Louhichi, Hillol Joardar   +6 more
doaj   +1 more source

Insights into the structure of grey reef shark aggregation, Carcharhinus amblyrhynchos (Bleeker, 1856), in two distinct channels of the Maldivian archipelago, Indian Ocean

Journal of Fish Biology, EarlyView.
Abstract The grey reef shark Carcharhinus amblyrhynchos is one of the most frequently encountered reef‐associated shark species in the Maldives, yet very little is known about its local size structure or population dynamics. This study provides new insights into two aggregations of C.
Parmegiani Andrea, Gobbato Jacopo, Yoosuf Rilwan, Seveso Davide, Galli Paolo, Whitehead Andrew Darren, Ismail Yameen, Montano Simone   +7 more
wiley   +1 more source