Results 91 to 100 of about 540,439 (252)

A theory of the skill-performance relationship

open access: yesFrontiers in Psychology
The skill-performance relationship is a cornerstone of a meritocratic society. People are selected for schools, colleges and jobs based on the premise that more skillful individuals perform better.
Seppo E. Iso-Ahola
doaj   +1 more source

Three loop renormalization of 3-quark operators in QCD

open access: yes, 2012
We compute the three loop MSbar anomalous dimension for the 3-quark operator corresponding to the proton. This requires the treatment of gamma^5 within dimensional regularization as well as evanescent operators generated through the renormalization.
Gracey, J. A.
core   +1 more source

Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth

open access: yesAdvanced Functional Materials, EarlyView.
This article provides a comprehensive overview of metamaterials, including their fundamental principles, properties, synthesis techniques, and applications in stealth, as well as their challenges and future prospects. It covers topics that are more advanced than those typically discussed in existing review articles, while still being closely connected ...
Jonathan Tersur Orasugh   +4 more
wiley   +1 more source

A Multi-Model Machine Learning Framework for Daily Stock Price Prediction

open access: yesBig Data and Cognitive Computing
Stock price prediction remains a challenging problem due to the inherent volatility and complexity of financial markets. This study proposes a multi-model machine learning framework for one-day-ahead stock price prediction using thirty-six features ...
Bharatendra Rai, Leili Soltanisehat
doaj   +1 more source

The Impact of Reform on Economic Growth in China: A Principal Component Analysis [PDF]

open access: yes
The study decomposes the sources of Chinese growth by first making a distinction between technological progress and technical efficiency in the growth accounting framework, and then identifying a series of reform programmes, such as urbanization ...
Sheng, Yu, Song, Ligang
core  

Emerging 2D Materials and Their Hybrid Nanostructures for Label‐Free Optical Biosensing: Recent Progress and Outlook

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights recent advances in label‐free optical biosensors based on 2D materials and rationally designed mixed‐dimensional nanohybrids, emphasizing their synergistic effects and novel functionalities. It also discusses multifunctional sensing platforms and the integration of machine learning for intelligent data analysis.
Xinyi Li, Yonghao Fu, Yuehe Lin, Dan Du
wiley   +1 more source

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

open access: yesAdvanced Functional Materials, EarlyView.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To   +5 more
wiley   +1 more source

Optimal Propeller design for future HALE UAV [PDF]

open access: yesScientific Technical Review, 2019
The main roles of unmanned air vehicles (UAVs) include: observation, surveillance, transportation, remote sensing and various security tasks. Improved, augmented type of UAVs are high-altitude long-endurance (HALE) aircraft capable and designed, as their
Svorcan Jelena   +3 more
doaj  

Advancements and Challenges in Electric Energy Storage Systems for Sustainable Transportation [PDF]

open access: yesE3S Web of Conferences
The transition towards electrification in transportation systems emerges as a crucial response to the escalating challenge of emissions following the second industrial revolution.
Yao Ziqian
doaj   +1 more source

Microfluidic multiscale model of transport phenomena for engineering and interdisciplinary education applied to elements of a stirling engine [PDF]

open access: yes, 2014
This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014)   +1 more
core  

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