Results 41 to 50 of about 261,601 (306)

Numerical analysis of high-speed railway slab tracks using calibrated and validated 3D time-domain modelling

open access: yesRailway Engineering Science, 2023
Concrete slabs are widely used in modern railways to increase the inherent resilient quality of the tracks, provide safe and smooth rides, and reduce the maintenance frequency.
A. F. Esen   +6 more
doaj   +1 more source

Hydrogel Confinement Strategies for 3D Cell Culture in Microfluidic Systems

open access: yesAdvanced Materials Technologies, EarlyView.
Hydrogel confinement structures are key to organizing 3D cell cultures in microfluidic devices. This review classifies five structural strategies (micropillar, phaseguide, porous membrane, stepped‐height, and support‐free) and examines their trade‐offs alongside fabrication methods.
Soohyun Kim, Min Seok Lee, Sung Kyun Lee
wiley   +1 more source

About Creation of Bogie of the Freight Car

open access: yesCommunications, 2017
Analyses of the operating problems of freight car bogies are carried out, as well as the reasons resulting in deterioration of the dynamic characteristics of modern bogies are specified.
Juraj Gerlici   +6 more
doaj   +1 more source

SELECTED LEGAL CONDITIONS VALID BY TRANSPORT OF DANGEROUS GOODS BY RAIL IN EUROPEAN UNION [PDF]

open access: yesActa Tecnología, 2017
The purpose of transport of dangerous by rail is to harmonise the rules applicable to the national and intra-community transport of dangerous goods by rail.
Lucia Knapčíková, Michal Balog
doaj   +1 more source

Exploring rail futures using scenarios: experience and potential [PDF]

open access: yes, 2007
In 1995 the author of this paper undertook a scenario exercise for British Rail to identify priorities for rail science and technology developments under the new privatised regime.
Potter, Stephen
core  

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

open access: yesAdvanced Robotics Research, EarlyView.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino   +7 more
wiley   +1 more source

3D‐Printing Aided Rapid Prototyping of Pretensioned Tensegrity Structures for Robotic Applications

open access: yesAdvanced Robotics Research, EarlyView.
Printing, injection molding, and assembly (PMA) is a method for rapid prototyping mesoscale, topologically complex, and tensioned tensegrity structures. In combination with PMA method, two mold design strategies: modular mold and compact channel layout, enable efficiency and scalability for tensegrity fabrication.
Yi Sun   +3 more
wiley   +1 more source

Rails Won't Save America [PDF]

open access: yes, 2008
Rising gas prices and concerns about greenhouse gases have stimulated calls to build more rail transit lines in urban areas, increase subsidies to Amtrak, and construct a large-scale intercity high-speed rail system. These megaprojects will cost hundreds
Randal O'Toole
core  

Remimazolam Ameliorates Autistic‐Like Behaviors via Suppression of Ferroptosis in VTA Dopaminergic Neurons in a Mouse Model of ASD

open access: yesAdvanced Science, EarlyView.
The ultra‐short‐acting sedative remimazolam has a sustained therapeutic effect on the core symptoms of VPA‐exposed mice. Remimazolam, a GABA agonist, exerts its therapeutic effects by protecting dopamine neurons in the VTA of VPA‐exposed mice. Meanwhile, ferroptosis is the critical mechanism by which remimazolam protects VTA dopaminergic neurons and ...
Yuxin Zhang   +7 more
wiley   +1 more source

Supply Chain Management and its Role in Rail Transport [PDF]

open access: yesE3S Web of Conferences
This empirical study article explores the role of supply chain management (SCM) in the context of rail transportation and provides an outline of SCM. Effective supply chain management techniques are crucial for the smooth running of the rail industry ...
Kumar Manoj, Vipin, Agarwal Ashish
doaj   +1 more source

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