Comparison of the Symmetric and Asymmetric Generalized Autoregressive Conditional Heteroscedasticity (GARCH) Models in Forecasting the 2018-2023 Jakarta Composite Index by Yenni Angraini, Adelia Putri Pangestika, I Made Sumertajaya

“…Hence, it is interesting to compare the forecasting accuracy of symmetric and asymmetric Autoregressive Conditional Heteroskedasticity (ARCH) models in various data conditions. The research aimed to compare the accuracy of the symmetric ARCH/ Generalized Autoregressive Conditional Heteroscedasticity (GARCH) and asymmetric TGARCH models in forecasting weekly Jakarta Composite Index (JCI) data on January 1st, 2018, to April 24th, 2023, by involving the influence of COVID-19 as a covariate variable and applying several validation scenario models to training and testing data. …”
Get full text

Methods of evaluating maturity level of the organization based on fuzzy modeling by Lyudmila Viktorovna Borisova, Lyubov Azatovna Dimitrova, Inna Nikolaevna Nurutdinova

“…A brief description of the fuzzification stages content, composition and defuzzification which are the essence of the fuzzy modeling process to obtain reliable estimates is given. …”
Get full text

Fatigue Design Research on Notch–Stud Connectors of Timber–Concrete Composite Structures by Zuen Zheng, Shuai Yuan, Guojing He

“…Using residual slip as the damage variable, a two-stage fatigue damage evolution model was constructed from the damage–cycle ratio relationship, offering a new method for shear connector fatigue damage calculation in timber–concrete composites and enabling remaining life prediction for similar composite beam connectors. …”
Get full text

Creep constitutive model of logarithmic fractal structure derivative of deep hard brittle rock by LIU Yipin, LIU Wenbo, ZHANG Shuguang, HUANG Xiang, LI Yingbo, ZHAO Shutian

“…The model is further optimized, and the nonlinear dashpot is deeply improved by using the logarithmic fractal structure derivative dashpot with variable time fractal dimension. …”
Get full text

Bulk System Reliability Assessment Incorporating Nodal Correlations in Supply–Demand Variabilities and Uncertainties Created with Net-Zero Emission Targets by Deeksha Sharma, Rajesh Karki

Get full text

Assessing future risk of humanitarian crises using projections of climate-related hazards, population, conflict and other socioeconomic variables within the INFORM framework by Sepehr Marzi, Karmen Poljanšek, Eleni Papadimitriou, Daniele Dalla Valle, Andrea Salvi, Christina Corbane

Get full text

COMPOSITE LEVER METHOD FOR POWER FLOW ANALYSIS OF LOOP-TYPE COMPOUND EPICYCLIC GEAR SYSTEM by XU Lin, LIU Kai, CUI YaHui, WANG HongJiang, ZHANG BaoFeng, LIU XiaoLin

“…Based on the lever model of a single epicyclic gear train, combined with the structural characteristics of the coupled system, used the superposition principle, a composite lever model reflecting the characteristics of the loop system is established. …”
Get full text

Anisotropic model observing pulsars from Neutron Star Interior Composition with modified Van der Waals equation of state by S. A. Mardan, A. Khalid, Rubab Manzoor, Muhammad Bilal Riaz

“…Abstract This paper is designed for heavy pulsars coming from the Neutron Star Interior Composition Explorer. The research model is describe by Einstein field equations for anisotropic fluid configuration with spherical symmetry. …”
Get full text

Modeling and Numerical Prediction on Mechanical Behaviors of Hybrid Fiber Reinforced Polymer Bio Composites Using Fuzzy Logic Algorithm by Vinoth Viswanathan, Sathiyamurthy Subbarayan, Ananthi Narayanaswamy, Devi Panneerselvam, Prabhakaran Jayasankar

“…A triangular membership function was employed to define all these variables. The effectiveness of the nonlinear regression analysis and fuzzy logic model was evaluated through confirmatory experiments. …”
Get full text

Evaluating microstructural and machine learning predictive models for friction drilling of sustainable snail shell reinforced aluminium matrix composites by Rajesh Jesudoss Hynes Navasingh, R. Sankaranarayanan, Priyanka Mishra, Angela Jennifa Sujana J, Jebasingh Jeremiah Rajesh, Jana Petru

“…Abstract For lightweight automotive applications, friction drilling is a choice candidate for ecofriendly drilling of aluminium matrix composites (AMCs) with green snail shell reinforcement. …”
Get full text

Habitat Suitability Assessment for <i>Illicium verum</i> Hook. f. (Star Anise) Under Climate Change Conditions, Using the MaxEnt Model and Comprehensive 2D Chromatography by Peng Gu, Qiuling Li, Liangbo Li, Ding Huang, Kexin Cao, Rumei Lu, Rongshao Huang, Jianhua Chen

“…Finally, a stepwise regression model between chemical compositions and environmental variables was established, and based on this, a quality zoning map was subsequently plotted. …”
Get full text

Monitoring Spatial-Temporal Variability of Vegetation Coverage and Its Influencing Factors in the Yellow River Source Region from 2000 to 2020 by Boyang Wang, Jianhua Si, Bing Jia, Xiaohui He, Dongmeng Zhou, Xinglin Zhu, Zijin Liu, Boniface Ndayambaza, Xue Bai

Get full text

WHAT IF PRICES CHANGE? ANALYSIS OF INTERNATIONAL TOURIST MARKET SEGMENTS' COMPOSITION IN THE FACE OF INFLATION FLUCTUATIONS by Jesús Barreal Pernas, Julio Vena Oya, Juan Antonio Parilla González

Get full text

Effect of toolpath in large-format additive manufacturing with bio-derived composites by Eonyeon Jo, Katie Copenhaver, Halil Tekinalp, Tyler Smith, Hsin Wang, Uday Vaidya, Soydan Ozcan, Seokpum Kim

“…While numerical modelling has been extensively employed to simulate numerous manufacturing processes, its application in LFAM with bio-derived composites remains limited. …”
Get full text

Determinants of the effective tax rate in the tourism sector: a dynamic panel data model by José Moreno-Rojas, M. Rosario González-Rodríguez, Rosario Carmen Martín-Samper

Get full text

A composite photovoltaic power prediction optimization model based on nonlinear meteorological factors analysis and hybrid deep learning framework by Mengji Yang, Haiqing Zhang, Xi Yu, Aicha Sekhari Seklouli, Abdelaziz Bouras, Yacine Ouzrout

Get full text

Reliability and mechanical performance of timber–concrete composite beams in the non-linear domain by Nabil Daanoune, Nassim Kernou, Mamoun Fellah, Gamal A. El-Hiti

“…The structural reliabilities of the beams were assessed using the MCS, FORM, and SORM methods, in which the geometric and mechanical input characteristics were treated as random variables. Certain parameters significantly affect beam failure, such as the timber’s bending resistance, the concrete’s compressive resistance, and the degree of composite action.…”
Get full text

Association between composite dietary antioxidant index and cognitive function impairment in the elderly: evidence from NHANES 2011–2014 by Yingying Qian, Qiang Liu, Tianlang Li

“…In a multivariate logistic regression model adjusted for confounding variables, the CDAI score was associated with the CERAD word learning subtest was still significant, the adjusted odds ratios (ORs) with 95% confidence intervals (CIs) was 0.94 (0.90,0.98), while the association with AFT and DSST was not statistically significant. …”
Get full text

Localized Compression Behavior of GFRP Grid Web–Concrete Composite Beams: Experimental, Numerical, and Analytical Studies by Yunde Li, Hai Cao, Yang Zhou, Weibo Kong, Kun Yu, Haoting Jiang, Zhongya Zhang

“…Glass fiber-reinforced polymer (GFRP) composites exhibit significant advantages over conventional structural webbing materials, including lightweight and corrosion resistance. …”
Get full text

One factor to bind them all: visual foraging organization to predict patch leaving behavior with ROC curves by Marcos Bella-Fernández, Manuel Suero Suñé, Alicia Ferrer-Mendieta, Beatriz Gil-Gómez de Liaño

Get full text