Results 51 to 60 of about 10,202,946 (277)
Advanced Energy Materials, Volume 15, Issue 11, March 18, 2025.A closed‐loop, data‐driven approach facilitates the exploration of high‐performance Si─Ge─Sn alloys as promising fast‐charging battery anodes. Autonomous electrochemical experimentation using a scanning droplet cell is combined with real‐time optimization to efficiently navigate composition space.
Alexey Sanin +7 more
wiley +1 more source
EkonometriaAim: The article considers the time series case of the closing prices of the S&P500 index over the period from January 2020 to April 2021. The author selected the best ARMA(p,q)-GARCH(1,1) models with different forms of probability density functions. The
Damian Wiśniewski
doaj +1 more source
PREDICTING AND ANALYZING OF TURKISH SUGAR PRICE WITH ARCH, GARCH, EGARCH AND ARIMA METHODS [PDF]
Scientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development, 2021 Using GARCH(p,q) models, in this study our aim is to examine and search the characteristics of volatility of Turkish sugar price. Due to the ARCH effects on price, ARCH(q), GARCH(p,q) and EGARCH(p,q) including these effects on mean and variance equations
Mehmet Arif ŞAHİNLİ
doaj
Advanced Energy Materials, EarlyView.Composite cathode engineering and stack pressure co‐optimization enable a high‐performance all‐solid‐state chloride‐ion battery based on a VOCl/CsSn₀.₉In₀.₀₆₇Cl3/In architecture, delivering 169 mAh g−1 with 500‐cycle durability. Electrode‐resolved impedance tracking via distribution of relaxation times revealed progressive interphase and charge ...
Soutam Panja +7 more
wiley +1 more source
RisksWe introduce the Normalising Flow GARCH (NF-GARCH), a two-stage hybrid framework that enhances traditional GARCH models by replacing restrictive parametric innovation distributions with learned densities via normalising flows.
Abdullah Hassan +2 more
doaj +1 more source
A Fast, Accurate Method for Value-at-Risk and Expected Shortfall
Econometrics, 2014 A fast method is developed for value-at-risk and expected shortfall prediction for univariate asset return time series exhibiting leptokurtosis, asymmetry and conditional heteroskedasticity.
Jochen Krause, Marc S. Paolella
doaj +1 more source
İktisat İşletme ve Finans, 2012 Bu calismada Turkiye’de TL/ABD dolari doviz vadeli islem piyasasi, Istanbul Menkul Kiymetler Borsasi Ulusal 30 hisse senedi endeksi vadeli islem piyasasi ve Gosterge-DIBS faiz orani vadeli islem piyasasinin para politikasi surprizlerine tepkisi Nisan 2006-Nisan 2010 donemi icin T-GARCH (1,1) modeli kullanilarak incelenmistir. Piyasalardaki vadeli islem
openaire +1 more source
Nanocrystalline LCO/LLZO Composite Cathode Films for Solid State Batteries
Advanced Energy Materials, EarlyView.A single precursor solution is solution‐deposited and calcined at only 750°C to yield a dense, nanograined LiCoO2/LLZO composite cathode, in which both phases crystallize independently with minimal interdiffusion. Assembled into all‐solid‐state Li‐metal batteries, the composite delivers 111.7 mAh g−1 initial discharge capacity and retains 93% after 100
Lucie Quincke +8 more
wiley +1 more source
Business Systems Research, 2013 Background: In light of the latest global financial crisis and the ongoing sovereign debt crisis, accurate measuring of market losses has become a very current issue. One of the most popular risk measures is Value-at-Risk (VaR). Objectives: Our paper has
Bucevska Vesna
doaj +1 more source
Topological Properties of International Commodity Market: How Uncertainty Affects the Linkages?
Agribusiness, EarlyView.ABSTRACT The study aims to explore the network topology of the international commodity market by examining the interconnections among 21 commodity futures across various categories, including energy, precious and industrial metals, and agriculture. We analyze the market structure of these commodity futures under both low and high uncertainty conditions
Ibrahim Yagli, Bayram Deviren
wiley +1 more source