Results 101 to 110 of about 142,039 (281)

The Interaction Between Railway Vehicle Dynamics And Track Lateral Alignment

open access: yes
This thesis examines the effect of vehicle dynamics on lateral deterioration of the track alignment. As rail traffic runs along a route, the forces imposed upon the track cause the ballast to settle, and hence the track geometry deteriorates.
Gong, Cencen
core  

Chlorination‐Enabled Oxygen Control and Dual‐Sulfur Source Aided Trap Passivation to Unlock 8.24% Efficient Sb2S3 Photovoltaic Devices

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates a scalable, low‐temperature synthesis strategy that combines a thioacetamide (TA)‐based dual sulfur source with CdS chlorination, enabling the formation of high‐quality Sb2S3 with a reduced open‐circuit voltage loss, resulting in improved device efficiency.
Vijay C. Karade   +16 more
wiley   +1 more source

Microfabrication of surface electrode ion traps for quantum manipulation

open access: yes, 2015
Thesis: S.M., Massachusetts Institute of Technology, Department of Physics, 2015.Cataloged from PDF version of thesis.Includes bibliographical references (pages 123-132).Trapped ions are a promising approach to quantum computation.
Ge, Yufei, S.M. Massachusetts Institute of Technology
core  

Internet Technology Track Chair’s Message

open access: yes, 2005
Internet Technology Track received around 60 papers and the papers were reviewed by the International program committee and finally 9 papers have been selected for presentation (6 full and 3 short papers).
Madria, Sanjay Kumar, Sanjay K. Madria
core   +1 more source

Interplay Between Phase Evolution, Fe Migration, and Oxygen Redox in O3‐Type NaxFeyMn1−yO2 Cathodes

open access: yesAdvanced Functional Materials, EarlyView.
Why do Na‐ion battery cathodes, that are compositionally closely related, follow different structural paths during battery operation? This work shows how Fe content controls when iron atoms migrate from their original sites. Early migration locks the layers and blocks key phase transitions, whereas delayed migration permits fuller structural ...
Morten Johansen   +4 more
wiley   +1 more source

Swelling‐Induced Stress‐Assisted Transfer of Nanodiamond Arrays With a PVA Carrier Tape for Conformal Bio‐Integrated Sensing and Labelling

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces a swelling‐induced, stress‐assisted water‐soluble PVA tape strategy to transfer‐print nanodiamond quantum‐sensor arrays onto soft, curved biological interfaces. The room‐temperature, water‐triggered process achieves >98% fidelity and residue‐free integration, enabling conformal quantum sensing on contact lenses, neural probes, and ...
Luyao Zhang   +9 more
wiley   +1 more source

Laser Processing Methods in Precision Silicon Carbide Wafer Exfoliation: A Review

open access: yesJournal of Manufacturing and Materials Processing
The rapid advancement of high-performance electronics has intensified the demand for wide-bandgap semiconductor materials capable of operating under high-power and high-temperature conditions.
Tuğrul Özel, Faik Derya Ince
doaj   +1 more source

Low Temperature Cold Atom Ion Source (LoTIS)

open access: yes, 2011
An experimental prototype of a cold-atom ion source for focused ion beam applications. \n\n Building upon the Nobel Prize-winning laser cooling techniques of NIST's Bill Phillips and Dave Wineland, NIST physicist Jabez McClelland applied laser cooling ...

core   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

open access: yesAdvanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil   +13 more
wiley   +1 more source

Detection of frictional meltwater on snow surface using a humidity indicator

open access: yesCurrent Issues in Sport Science
Introduction & Purpose The low friction coefficient of a ski on snow is due to the formation of a meltwater layer between the ski base and the snow surface.
Shiraz Ahmed Siddiqui   +5 more
doaj   +1 more source

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