Results 71 to 80 of about 10,017,236 (335)

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Behavioural finance perspectives on Malaysian stock market efficiency [PDF]

open access: yesBorsa Istanbul Review, 2016
This paper provides historical, theoretical, and empirical syntheses in understanding the rationality of investors, stock prices, and stock market efficiency behaviour in the theoretical lenses of behavioural finance paradigm.
Tuyon J, Ahmad Z.
europepmc   +2 more sources

Testing Downside Risk Efficiency Under Market Distress [PDF]

open access: yes, 2008
In moments of distress downside risk measures like Lower Partial Moments (LPM) are more appropriate than the standard variance to characterize risk. The goal of this paper is to study how to compare portfolios in these situations.
Gonzalo, J., Olmo, J.
core   +3 more sources

Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release

open access: yesAdvanced Engineering Materials, EarlyView.
Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro   +3 more
wiley   +1 more source

Random walk tests for the MENA stock returns

open access: yesJournal of Enterprise and Development
Purpose — The current study seeks to understand whether individual stock returns exhibit random movement and are not dependent (efficient at weak form) on fourteen out of sixteen actively traded Arab stock markets in the Middle East and North Africa ...
Zeravan Abdulmuhsen Asaad   +1 more
doaj   +1 more source

Is the Nigerian Stock Market Efficient? Pre and Post 2007-2009 Meltdown Analysis

open access: yesStudia Universitatis Vasile Goldis Arad, Seria Stiinte Economice, 2019
Efficient market hypothesis asserts movements in asset prices are due to significant changes in information. The financial crisis of 2007-2009 originated from subprime mortgages in the United States and affected African countries through local stock ...
Nageri Kamaldeen Ibraheem   +1 more
doaj   +1 more source

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

open access: yesAdvanced 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   +4 more
wiley   +1 more source

Asset Growth Anomaly & Future Stock Return; Evidence from Tehran Stock Exchange [PDF]

open access: yesتحقیقات مالی, 2014
This paper investigates asset growth pricing in firm-level cross section stock return in Tehran Stock Exchange for the period from 1379 to 1389. In order to test cross section stock return predictability by the firm's asset growth, the relation between ...
Maryam Davallou
doaj   +1 more source

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

open access: yesAdvanced 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   +5 more
wiley   +1 more source

High-frequency data and the effectiveness of the spot exchange rate EUR/USD

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2013
The boom of information technology in recent years significantly influenced the development of the financial markets. Financial markets have become accessible to the public, and increased demand for financial instruments is inevitably reflected in the ...
Petr Zeman, Martin Maršík
doaj   +1 more source

Home - About - Disclaimer - Privacy