Results 81 to 90 of about 546,948 (250)

Формирование инвестиционного портфеля на российском рынке акций при помощи непараметрического метода - искусственных нейронных сетей

open access: yesКорпоративные финансы, 2017
In this paper, a nonparametric method, the Artificial Neural Network (ANN), was used for analyzing 50 stocks, which are included in the calculation base of the MICEX stock index. This method allowed us to use not only macroeconomic and technical factors,
Elena Buyanova, Artur Sarkisov
doaj   +1 more source

Technical Design Report for the PANDA Solenoid and Dipole Spectrometer Magnets [PDF]

open access: yes, 2009
This document is the Technical Design Report covering the two large spectrometer magnets of the PANDA detector set-up. It shows the conceptual design of the magnets and their anticipated performance. It precedes the tender and procurement of the magnets
Clarkson, T.   +19 more
core  

Unprecedented Spin‐Lifetime of Itinerant Electrons in Natural Graphite Crystals

open access: yesAdvanced Functional Materials, EarlyView.
Graphite exhibits extraordinary spintronic potential, with electron spin lifetimes reaching 1,000 ns at room temperature ‐ over 100 times longer than graphene‐based devices. Magnetic resonance spectroscopy reveals strong anisotropy: out‐of‐plane spins live 50 times longer than their in‐plane counterparts.
Bence G. Márkus   +5 more
wiley   +1 more source

Testing the Profitability of Technical Analysis as a Portfolio Selection Strategy [PDF]

open access: yes
One of the main diffculties in evaluating the profits obtained using technical analysis is that trading rules are often specifed rather vaguely by practitioners and depend upon the judicious choice of rule parameters.
Stan Hurn, Vlad Pavlov
core  

Designs on governance : development of policy instruments and dynamics in governance [PDF]

open access: yes, 2007
The thesis analyses the role of policy instruments for dynamics of governance, using case studies on ‘emissisons trading’ and ‘network access regulation in the utilities’.
Voß, Jan-Peter
core   +2 more sources

Multi‐Ion Doping Controlled CEI Formation in Structurally‐Stable High‐Energy Monoclinic‐Phase NASICON Cathodes for Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The graphical abstract illustrates the synthesis pathway, morphological feature, and thermodynamic feasibility of entropy‐engineered NASICON cathodes for sodium‐ion batteries. Abstract Overcoming the energy density limitations of sodium‐ion batteries (NIBs) requires innovative strategies to optimize cathode materials.
Sharad Dnyanu Pinjari   +9 more
wiley   +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

A Solvent‐Free, Dry‐Processed Li‐Ion Battery Enabled by Dual Binders and Nanostructured Aluminum Current Collectors

open access: yesAdvanced Functional Materials, EarlyView.
A dual‐binder dry‐processed electrode (DB‐DPE) combining PTFE and PVDF with a nanostructured Al current collector (NSA) forms a mechanically interlocked interface that significantly improves adhesion and reduces interfacial resistance. With an active material content as high as 96 wt.%, the NSA‐based DB‐DPE enables high‐mass‐loading operation (12.5 mAh
Seok Yun Kim   +4 more
wiley   +1 more source

High‐Yield Synthesis of Fe‐NC Electrocatalysts Using Mg2+ Templating and Schiff‐Base Porous Organic Polymers

open access: yesAdvanced Functional Materials, EarlyView.
Fe─NC porous oxygen reduction electrocatalysts are prepared employing a 2,4,6‐Triaminopyrimidine‐based porous organic polymer, a Mg2+ Lewis acid, and a low‐temperature cation exchange protocol. Using the polymer precursor achieves high pyrolysis yields and results in atomically dispersed FeNx sites. The resulting catalysts feature hierarchical porosity
Eliot Petitdemange   +11 more
wiley   +1 more source

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

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