Results 81 to 90 of about 7,652 (262)

A Level Set Analysis and A Nonparametric Regression on S&P 500 Daily Return

open access: yesInternational Journal of Financial Studies, 2016
In this paper, a level set analysis is proposed which aims to analyze the S&P 500 return with a certain magnitude. It is found that the process of large jumps/drops of return tend to have negative serial correlation, and volatility clustering ...
Yipeng Yang, Allanus Tsoi
doaj   +1 more source

Methanesulfonic Acid as a Dual‐Role Reagent for Porous Polymer Network Design

open access: yesAdvanced Materials, EarlyView.
The design of porous polymer networks (PPNs) using methanesulfonic acid (MSA) as a dual‐role reagent facilitates the synthesis of robust PPNs for specific applications. It also makes the scale‐up process techno‐economically feasible because MSA functions simultaneously as both a solvent and a catalyst for the reaction.
Kelechi Festus   +8 more
wiley   +1 more source

Layered Spin‐Crossover Metal‐Organic Frameworks for Light‐Induced Control of Two‐Dimensional Quantum Materials

open access: yesAdvanced Materials, EarlyView.
Spin‐crossover metal‐organic frameworks (SCO‐MOFs) provide a route to control the electronic and magnetic properties of two‐dimensional quantum materials. By integrating a layered SCO‐MOFs with graphene, CrSBr, and NbSe2 nanodevices, thermally and light induced spin transitions induce strain that reversibly modulates charge transport, magnetic memory ...
Carla Boix‐Constant   +4 more
wiley   +1 more source

Turning Nd‐Fe‐B Swarf Into High‐Value Bulk Feedstocks via Sustainable Hydrogen Plasma: From Rare‐Earth Oxides to Metals and Hydrides

open access: yesAdvanced Materials, EarlyView.
Oxidized Nd‐Fe‐B magnet swarf is transformed into valuable bulk feedstock through a single‐step hydrogen plasma process. The reaction converts complex rare‐earth‐containing waste into separated metallic, oxide, and hydride fractions without acid leaching.
Naritai Chimed   +9 more
wiley   +1 more source

Thickness‐Defined Transport Regime Toward Near‐Ideal Area‐Type Switching

open access: yesAdvanced Materials, EarlyView.
By thinning the oxide layer, memristors pass from diode‐like and battery‐effect‐dominated behavior toward eventual short‐circuit failure. Within the intermediate 5–6 nm window, they reach a near‐ideal analog area‐type switching regime, featuring symmetric hysteresis, area‐dependent conductance, and continuous linear programming of HRS and LRS with ...
Cuo Wu   +12 more
wiley   +1 more source

Impact of crude oil price volatility on Indian stock market returns: A quantile regression approach [PDF]

open access: yesEkonomski Anali
This paper examines the heterogenous effect of oil price volatility on Indian sectoral stock returns for the period January 2011 to September 2022 using the quantile regression method, which helps us to analyse the impact in bearish, normal, and
Munawwara Zubair
doaj   +1 more source

Thermoplastic Dielectric Coatings for Flexible Electrodynamic Dust Shields: Structural and Functional Performance

open access: yesAdvanced Materials Interfaces, EarlyView.
Thermoplastic attachment is introduced as a scalable surface coating strategy to improve the durability and dielectric reliability of flexible electrodynamic dust shields. By embedding chemically modified reduced graphene oxide (CMrGO) electrodes within thermoplastic laminates, mechanical degradation, abrasion damage, and vacuum‐induced electrical ...
Ide E. Onal   +6 more
wiley   +1 more source

Industries Return and Volatility Spillover in Chinese Stock Market: An Early Warning Signal of Systemic Risk

open access: yesIEEE Access, 2019
This paper studies the intraday return and volatility spillovers of Chinese CSI 300 industry indices with high-frequency data over the period from May 2012 to June 2016. The dynamic correlation among the industries is calculated with VEC-DCC-GARCH model.
Feng He, Zhifeng Liu, Sicen Chen
doaj   +1 more source

Smart Electrospun Nanofibers for Controlled Oil‐Water Separation

open access: yesAdvanced Materials Interfaces, EarlyView.
Stimuli‐responsive electrospun nanofibers are reviewed as advanced platforms for controlled oil/water separation. The effects of surface wettability, porous structure, and external stimuli, including pH, temperature, gas, and light, on separation performance are discussed.
Aynaz Sedaghatnia   +6 more
wiley   +1 more source

Evaluasi Pembiayaan Perumahan Akad Murabahah Versus Kredit Konvensional Berdasarkan Volatilitas Harga

open access: yesJournal of Accounting and Investment, 2016
The purpose of this study was to determine whether the pattern of housing financing murabaha or conventional mortgages can overcome the volatility of house prices after the maturity of the financing.
Sahlan Hasbi, Kuncoro Hadi
doaj  

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