Results 101 to 110 of about 427,074 (306)

The Muon Decay at the Two Loop Level of the Electroweak Interactions

open access: yes, 2003
The progress in the evaluation of the muon decay lifetime is reviewed. The electroweak bosonic corrections are given together with the respective shift of the W boson mass.
Czakon, M.
core   +1 more source

Thermal Characterization and Lifetime Prediction of LED Boards for SSL Lamp [PDF]

open access: yes, 2013
This work presents a detailed 3-D thermo-mechanical modelling of two LED board technologies to compare their performance. LED board are considered to be used in high power 800 lumen retrofit SSL (Solid State Lighting) lamp.
Formanek, J., Jakovenko, J.
core   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

open access: yesAdvanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner   +4 more
wiley   +1 more source

Review of the Modelling of Corrosion Processes and Lifetime Prediction for HLW/SF Containers—Part 1: Process Models

open access: yesCorrosion and Materials Degradation
The disposal of high-level radioactive waste (HLW) and spent nuclear fuel (SF) presents a unique challenge for the prediction of the long-term performance of corrodible structures since HLW/SF containers are expected, in some cases, to have lifetimes of ...
Fraser King   +5 more
doaj   +1 more source

Backbone Heterojunction Photocatalysts for Efficient Sacrificial Hydrogen Production

open access: yesAdvanced Functional Materials, EarlyView.
Herein, a ‘single‐component’ organic semiconductor photocatalyst is presented in which a molecular donor is bonded to a polymer acceptor. The resultant material demonstrates exceptional photocatalytic activity for hydrogen evolution in aqueous triethylamine with an outstanding external quantum efficiency of 38% at 420 nm.
Richard J. Lyons   +11 more
wiley   +1 more source

Integrated Machine Learning Framework Combining Electrical Cycling and Material Features for Supercapacitor Health Forecasting

open access: yesBatteries
The ability to predict capacity retention is critical for ensuring the long-term reliability of supercapacitors in energy storage systems. This study presents a comprehensive machine learning framework that integrates both electrical cycling data and ...
Mojtaba Khakpour Komarsofla   +2 more
doaj   +1 more source

Lifetime Difference and CP Asymmetry in the Bs -> J/psi phi decay

open access: yes, 2007
The Bs meson is an interesting particle to study because a sizable mixing induced CP violation in the Bs-Bsbar system would be an indication for physics beyond the Standard Model.
Kuhr, Thomas
core  

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Development of a Realistic Model to Accurately Predict the “Mirrored S-Curve” Nature of LED Luminaire Lumen Maintenance for Any Operating Conditions

open access: yesIEEE Access
In the current era, LED lighting technology is the most widely used illumination source in all applications worldwide. Accurately predicting lumen degradation and lifetime performance has become critical for ensuring long-term reliability and cost ...
Savitha G. Kini   +2 more
doaj   +1 more source

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