Results 211 to 220 of about 1,381,965 (391)

Highly Robust Double Memristive Device Based on Perovskite/Molybdenum Oxide‐Sulfide Compound Heterojunction System

open access: yesAdvanced Electronic Materials, EarlyView.
A highly robust double memristor based on a molybdenum oxide‐molybdenum sulfide/perovskite heterojunction is demonstrated. Good resistive switching behavior with an endurance of 100 cycles, high retention of 2·× 104 s, and ON/OFF ratio of ≈102 is reported to emulate successfully the biosynapse's behavior.
Gion Kalemai   +17 more
wiley   +1 more source

The Volatility of Realized Volatility [PDF]

open access: yes
Using unobservable conditional variance as measure, latent–variable approaches, such as GARCH and stochastic–volatility models, have traditionally been dominating the empirical finance literature.
Christian Pigorsch   +3 more
core  

Freestanding Membranes of Titania Nanorods, Photocatalytically Reduced Graphene Oxide, and Silk Fibroin: Tunable Properties and Electrostatic Actuation

open access: yesAdvanced Electronic Materials, EarlyView.
Graphene‐based materials have shown great potential for the development of hybrid MEMS devices. This study describes the facile fabrication of freestanding membranes from graphene oxide, titania nanorods, and silk fibroin. By utilizing the photocatalytic activity of the titania nanorods, the mechanical and electrical properties of the membranes can ...
Finn Dobschall   +6 more
wiley   +1 more source

Estimation of stochastic volatility models via Monte Carlo maximum likelihood [PDF]

open access: yes
Andersen   +33 more
core   +1 more source

Does the weather affect stock market volatility? [PDF]

open access: yes
This paper investigates the empirical association between stock market volatility and investor mood-proxies related to the weather (cloudiness, temperature and precipitation) and the environment (nighttime length).
Daskalakis, George   +2 more
core   +1 more source

Modulating Dynamic Photoresponse Behavior of Organic Phototransistors Through Morphology Control

open access: yesAdvanced Electronic Materials, EarlyView.
An effective and facile strategy is investigated to regulate the photoresponse behavior from photomemory to photoswitching through controlling the crystalline and transporting properties of photosensitive layer. Highly ordered, high‐mobility films typically shows photomemory behavior whereas films with poor crystallinity and low charge mobility tend to
Weijie Gong   +12 more
wiley   +1 more source

Thermo‐responsive topological metamorphosis in covalent‐and‐supramolecular polymer architectures

open access: yesAggregate, Volume 3, Issue 6, December 2022., 2022
We report a thermo‐responsive topological metamorphosis in covalent‐and‐supramolecular polymer (CSP) architectures wherein supramolecular graft polymer (SGP) transforms into supramolecular polymer network (SPN) based on collaborative dynamic covalent bond chemistry and host−guest chemistry.
Yongming Wang   +7 more
wiley   +1 more source

Dynamic relationship between volume and volatility in the Chinese stock market: evidence from the MS-VAR model

open access: yesData Science and Management
Since market uncertainty, or volatility, serves as a crucial gauge for assessing the traits of market fluctuations, the link between stock market volume and price continues to be a focal point of interest in finance.
Feipeng Zhang   +3 more
doaj  

Finance and Macroeconomic Volatility

open access: bronze, 2000
Cevdet Denizer   +2 more
openalex   +1 more source

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