Results 51 to 60 of about 181,743 (266)

Study on the Efficiency and Complexity of Chinese Energy Market Based on Multiple Events

Fractal and Fractional
Energy supports national economic development, and its financial attributes are continuously being enhanced. Analyzing the efficiency and risk of the energy market is of significant importance in energy security and sustainable development.
Xiaoyu Shen, Weizhen Zuo, Jiaxin Chang, Weijie Zhou   +3 more
doaj   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Market interaction and efficient cooperation [PDF]

European Economic Review, 2019
The authors thank the Spanish Ministerio de Economia y Competitividad (Grant: ECO2014-59302-P), the Generalitat de Catalunya (Grant: 2014 SGR 510), the Antoni Serra Ramoneda Research Chair (UAB-Catalunya Caixa) for financial support.
Jordi Brandts, Arno Riedl
openaire   +5 more sources

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Toward Scalable Solutions for Silver‐Based Gas Diffusion Electrode Fabrication for the Electrochemical Conversion of CO2 – A Perspective

Advanced Functional Materials, EarlyView.
In this study, the preparation techniques for silver‐based gas diffusion electrodes used for the electrochemical reduction of carbon dioxide (eCO2R) are systematically reviewed and compared with respect to their scalability. In addition, physics‐based and data‐driven modeling approaches are discussed, and a perspective is given on how modeling can aid ...
Simon Emken, K. Ashoke Raman, Alexander Bauer, Violeta Karyofylli, Eva Jodat, André Karl, Rüdiger‐A. Eichel   +6 more
wiley   +1 more source

Persistence in high frequency financial data: the case of the EuroStoxx 50 futures prices

Cogent Economics & Finance
Differences in the behaviour of asset prices depending on data frequency have not been thoroughly investigated in the literature despite their possible importance.
Guglielmo Maria Caporale, Alex Plastun
doaj   +1 more source

Are markets adaptive? Evidence of predictability and market efficiency of lodging/resort REITs

International Journal of Strategic Property Management, 2020
We investigate the degree of return predictability of lodging/resort real estate investment trusts (REITs) from January 1994 to May 2016. We test the Martingale hypothesis by using linear (automatic portmanteau and automatic variance ratio with rolling ...
Fahad Almudhaf, Ramya Rajajagadeesan Aroul, J. Andrew Hansz   +2 more
doaj   +1 more source

Contact Lens with Moiré Patterns for High‐Precision Eye Tracking

Advanced Functional Materials, EarlyView.
This work presents a passive contact lens for high‐precision eye tracking, integrating a microscopic moiré grating label. The parallax‐induced shift of macroscopic moiré patterns enables angle measurement with 0.28° precision using a standard camera under ambient light.
Ilia M. Fradkin, Roman V. Kirtaev, Mikhail S. Mironov, Dmitriy V. Grudinin, Alexander A. Marchenko, Marina M. Chugunova, Valentin R. Solovei, Alexander V. Syuy, Andrey A. Vyshnevyy, Ilya P. Radko, Aleksey V. Arsenin, Valentyn S. Volkov   +11 more
wiley   +1 more source

BENTUK PASAR EFISIENSI DAN PENGUJIANNYA

Jurnal Akuntansi dan Keuangan, 2002
This paper discusses and summarizes the efficient market hypotheses initially proposed by Fama (1970). According to the efficient market theory, the market is said to be efficient if 'security prices reflect all available information'.
Tatang Ary Gumanti, Elok Sri Utami
doaj  

Agricultural Land Price Convergence: Evidence from Polish Provinces

Agriculture, 2020
This research deals with the problem of agricultural land market efficiency using the spatial market integration concept as well as the present value (PV) model.
Mateusz Tomal, Agata Gumieniak
doaj   +1 more source