Results 101 to 110 of about 94,810 (281)

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Increasing track stability in the zone of joints due to the use of elastic under sleeper pads

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2016
Questions to optimize track stiffness on concrete sleepers were constantly in the area of attention of domestic and foreign experts in the field of track facilities.
V. O. Pevzner   +5 more
doaj   +1 more source

Compatibility of Methacrylate Based Resins Controls Interfacial Failure and Toughness in 3D‐Printed Multimaterial Composites

open access: yesAdvanced Engineering Materials, EarlyView.
This work shows that the mechanical performance of multimaterial digital light processing (DLP) printed thermoset composites is governed by resin compatibility and interfacial design rather than spatial patterning alone. Brittle and ductile resin combinations produced premature interfacial failure, while graded interfaces and mechanically compatible ...
Ahmed M. H. Ibrahim   +3 more
wiley   +1 more source

Optimization of track geometry maintenance : a study of track geometry degradation to specify optimal inspection intervals

open access: yes, 2011
Railway infrastructure is a complex system which comprises different subsystems. Long useful life span is one of the important aspects of this prime mode of transport.
Arasteh khouy, Iman
core   +1 more source

New Transition Wedge Design Composed by Prefabricated Reinforced Concrete Slabs

open access: yesLatin American Journal of Solids and Structures
Important track degradation occurs in structure-embankment transitions, in which an abrupt change in track vertical stiffness arises, leading to a reduction in passengers comfort and safety.
Julia Real-Herráiz   +3 more
doaj   +1 more source

Analysis of the reasons to wear and damage the rails depending on technical–operating conditions of the track

open access: yesPojazdy Szynowe, 2017
Diagnosis of the track superstructure is a significant element among the factors contributing to improvement of technical condition of railway infrastructure in Poland.
Roksana Licow, Franciszek Tomaszewski
doaj   +1 more source

A Bayesian assessment for railway track geometry degradation prognostics [PDF]

open access: yes, 2018
Advanced PHM techniques have the potential to substantially reduce railway track maintenance costs while increasing safety and availability. However, there is still a significant lack of knowledge and experience in relation to suitable PHM models and ...
Andrews, John   +3 more
core  

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

open access: yesAdvanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco   +8 more
wiley   +1 more source

Bidirectional Shear Performance of Corroded Stud Connectors in Steel–Concrete Composite Monorail Track Beams

open access: yesBuildings
Under the combined action of bidirectional (longitudinal and transverse) shear loads and corrosive environments, the shear performance of stud connectors in steel–concrete composite track beams of straddle-type monorail transit systems is susceptible to ...
Junhui Li   +4 more
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

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