Results 161 to 170 of about 2,455,495 (384)

Autoregressive Lag Length Selection Criteria in the Presence of ARCH Errors [PDF]

open access: yes
We study the effects of ARCH errors on the performance of the commonly used lag length selection criteria. The most important finding of this study is that SIC, FPE, HQC and BIC perform considerably well in estimating the true autoregressive lag length ...
Terence Tai-leung Chong   +1 more
core  

LIGETI’S “STRING QUARTET No.1”; STYLISTIC INCONGRUENCE?

open access: yesStudia Universitatis Babeş-Bolyai. Musica, 2008
Compared to Ligeti’s String Quartet no.2, Métamorphoses nocturnes is a piece that has been less explored, although it towers over the author’s early creations.
Bianca ŢIPLEA TEMEŞ
doaj  

Making Photoresponsive Metal–Organic Frameworks an Effective Class of Heterogeneous Photocatalyst

open access: yesAdvanced Functional Materials, EarlyView.
This review summarizes photoresponsive MOFs for photocatalytic applications, focusing on their capacity to enhance light harvesting, charge transfer, and surface reactions. While existing studies provide foundational insights, emerging characterization techniques enable a deeper understanding of photoresponsive MOFs.
Rui Liu   +3 more
wiley   +1 more source

Long Agricultural Futures Prices: ARCH, Long Memory, or Chaos Processes? [PDF]

open access: yes
Price series that are 21.5 years long for six agricultural futures markets, corn, soybeans, wheat, hogs, coffee and sugar, possess characteristics consistent with nonlinear dynamics.
Anning Wei, Raymond M. Leuthold
core  

The Quantification of Tooth Displacement [PDF]

open access: yes, 2010
By using reference points from a single pixel marker placed at the center point of the cuspid teeth and the center point on each of the incisor teeth, a polynomial curve was generated as a native curve for each dental arch studied.
Johnson, L Thomas   +3 more
core   +1 more source

Analyzing Sexual Dimorphism through the Central Curved Portion of Palm Print Arches

open access: yesOnline Journal of Health & Allied Sciences
Palm arch analysis of the middle portion of the palm print has been an unexplored area for forensic applications like sex determination and stature estimation.
Taruna Lodhi   +3 more
doaj  

Elucidating Sodium Ion Storage Mechanisms in Hard Carbon Anodes at the Electronic Level

open access: yesAdvanced Functional Materials, EarlyView.
High‐resolution, multi‐frequency continuous wave, and pulsed Electron Paramagnetic Resonance (EPR) spectroscopy uncover the intricate Na ion storage mechanisms in hard carbon. This study reveals the coexistence of Na ion intercalation and solvent co‐intercalation, alongside a subsequent transition of Na ions from ionic to quasi‐metallic to metallic ...
Qingbing Xia   +5 more
wiley   +1 more source

An experimental investigation of retro-reinforced clay brick arches

open access: yes, 2010
This paper describes the laboratory testing of eight 2.95m span segmental profile clay brick arches. Seven of the arches were strengthened with longitudinal intrados (soffit) reinforcement; the eighth was left unreinforced as an experimental control ...
Ashour, AF, Chen, Y, Garrity, SW
core  

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

open access: yesAdvanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar   +8 more
wiley   +1 more source

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