Results 51 to 60 of about 2,203 (204)

From Material Tensions to Organizational Paradoxes: How Manufacturers Cope With the Limits of Circular Product Design

Business Strategy and the Environment, EarlyView.
ABSTRACT Circular product design (CPD) is central to advancing the circular economy by enabling the narrowing, slowing, and closing of resource flows. Yet, its implementation remains persistently challenging for firms. Prior research has largely framed these challenges as discrete barriers, overlooking the structural contradictions embedded in CPD ...
Vanessa Robertson, Nelly Rahimy, Suleika Bort   +2 more
wiley   +1 more source

A White Paper on Advancing Long‐Acting Therapeutics for Maternal and Pediatric Health by Bridging Gaps in Clinical Research, Access and Regulation

Clinical Pharmacology &Therapeutics, EarlyView.
As use cases for long‐acting therapeutics expand across clinical indications, there is a critical need to ensure the inclusion of women who are pregnant or breastfeeding, infants and children—populations with a historical gap in the availability of interventions already approved for use in adults.
Moherndran Archary, Robert Bies, Osei Boateng, Rachel Daley, Pierre Gashema, Mili Karina, Emily Njuguna, Sharon Nachman, Nathaniel Nkrumah, Carolyne Odula, Andrew Owen, Ethel D. Weld, Prajith Venkatasubramanian, Adeniyi Olagunju, on behalf of the Community of Practice for Long‐acting Therapeutics for Maternal and Paediatric Health, Rana Abutaima, Dorothy Akongo, Abdulnaser Alsharaa, Moherndran Archary, Shakir Atoyebi, Benoit Bestgen, Robert Bies, Osei Boateng, Andrew Butler, Edmund Capparelli, Rachel Daley, Layla Davies, Joelle Dountio, Henry Enzama, Pierre Gashema, Katila George, Dan Hawcutt, Rene Holm, Patrick Gad Iradukunda, Elodie Jambert, Mili Karina, Linda Lewis, Grace Miheso, Sebastien Morin, Andrew Morrison, Sharon Nachman, Shadia Nakalema, Emily Njunga, Nathaniel Nkrumah, Carolyne Odula‐Obonyo, Brenda Okware, Adeniyi Olagunju, Andrew Owen, Martina Penazzato, Natella Rakhmanina, Mphako Brighton Ratlabyana, Rachel Scott, Kimberly Struble, Andre‐Marie Tchouatieu, Catherine Unsworth, Prajith Venkatasubramanian, Catriona Waitt, Ethel Weld, Janine Winterbottom, Leena Zino   +59 more
wiley   +1 more source

A Study on the Influences of Welding Position on the Keyhole and Molten Pool Behavior in Laser Welding of a Titanium Alloy

Metals, 2019
Various welding positions need be used in laser welding of structures with complex configurations. Therefore, it is necessary to gain knowledge of how the welding positions can influence the keyhole and weld pool behavior in order to better control the ...
Baohua Chang, Zhang Yuan, Hao Cheng, Haigang Li, Dong Du, Jiguo Shan   +5 more
doaj   +1 more source

Forced Draught Impact on Externally Venting Flames: An Experimental and Numerical Investigation

Fire and Materials, EarlyView.
ABSTRACT Wind can significantly influence fire development and spread in urban and forest environments causing fatal consequences for the public, the first responders, and the environment. Wind‐driven fires can have a significant impact on structural fires as wind can increase the fire's intensity, development, and flame spread.
Anoop Subramania Warrier, Jan Smolka, Kamila Kempna, Meet Panchal, Tony Graham, Eleni Asimakopoulou   +5 more
wiley   +1 more source

A Fully‐Connected Chip‐Integrated Reconfigurable Mode‐Pairing Quantum Key Distribution Network

Laser &Photonics Reviews, EarlyView.
This work constructs a fully connected reconfigurable chip‐integrated quantum key distribution network via the mode‐pairing protocol. Hybrid ECL and WSS chips cut wavelength and port overhead, realizing arbitrary‐user key sharing with merely two wavelengths.
Xiao‐Lei Jiang, Wei Gao, Yan‐Yang Zhou, Yu Zhou, Yu‐Yao Guo, Yi‐Fei Lu, Yuan‐Chao Yu, Yang Wang, Jia‐Ji Li, Chun Zhou, Hong‐Wei Li, Liang‐Jun Lu, Lin‐Jie Zhou, Jian‐Ping Chen, Wan‐Su Bao   +14 more
wiley   +1 more source

Detecting Loosening of Bolt‐Flanged Pipe Using Smoothed Pseudo Wigner–Ville Distribution: Digital Twin‐Based Approach Using Convolution Neural Networks

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In this paper, an integrated digital twin‐based fault‐diagnosis framework is proposed to detect bolt loosening in flanged pipe connections. The approach combines finite element‐based numerical modeling, experimental modal analysis, and advanced signal processing‐assisted deep learning to achieve reliable loosening detection under operational ...
Milad Shabani Yousefabad, Behzad Totakhaneh Bonab, Morteza Homayoun Sadeghi, Mir Mohammad Ettefagh, Mohammad Reza Chalak Qazani   +4 more
wiley   +1 more source

Nonwoven rCF/PA6 Thermoplastic Composites: Hybrid Commingled Fibers vs. Powder Impregnation—Effects on Microstructure and Mechanical Properties

Polymer Composites, EarlyView.
Comparison of powder impregnation and hybrid commingled non‐wovens for PA6/rCF nonwoven composites. The two‐step powder route gives lower voids and higher properties, while the single‐step hybrid route is limited by precursor inhomogeneity and high void content.
Gaia Francesca Lupia, Tommaso Pini, Ilaria Rossitti, Sara Taherinezhad Tayebi, Marco Valente   +4 more
wiley   +1 more source

Numerical investigation of the influence of pulse frequency on the weld pool size in pulsed current TIG welding

AIP Advances
This study simulates the pulsed current tungsten inert gas (TIG) welding process to investigate the transient development of the weld pool in a 4 mm thick aluminum sheet, focusing on the effects of pulse frequency on the weld pool size.
Shahid Parvez, Magdy El Rayes, Essam Al-Bahkali, Khalid Alqosaibi   +3 more
doaj   +1 more source

Weld Pool Control in Laser Welding

, 2002
The objective of this work is the design of a feedback control system for the laser welding process, which is able to control the penetration depth of the weld. Firstly the possibilities to control the penetration depth of a weld when only partial penetration is demanded, for instance in the case of overlap configurations, will be discussed ...
Postma, Sjoerd, Aarts, Ronald G.K.M.
openaire   +1 more source

In Situ Atmospheric Plasma Treatment Enables First‐Layer Adhesion of PEEK on Borosilicate Glass for FDM‐Printed Non‐Assembly Mechanisms

Polymer Engineering &Science, EarlyView.
A printhead‐mounted plasma nozzle activates the PEEK melt and the borosilicate print‐bed at the instant of contact. Only this simultaneous in‐situ activation of both interfaces yields reliable first‐layer adhesion (0.22 MPa). ABSTRACT Fused deposition modeling of poly‐ether‐ether‐ketone (PEEK) requires a high‐temperature build plate, yet PEEK does not ...
Paul Sager, Nikolai Schuljak, Arne Bender, Rainer Adelung   +3 more
wiley   +1 more source