LiMMCov: An interactive research tool for efficiently selecting covariance structures in linear mixed models using insights from time series analysis by Perseverence Savieri, Lara Stas, Kurt Barbé

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LiMMCov: An interactive research tool for efficiently selecting covariance structures in linear mixed models using insights from time series analysis. by Perseverence Savieri, Lara Stas, Kurt Barbé

“…The correct specification of covariance structures in linear mixed models (LMMs) is critical for accurate longitudinal data analysis. …”
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High-resolution shallow structures of the Red River fault zone in the southeastern Tibetan Plateau of China revealed by multiple seismic dense linear arrays by HongYu Ni, JunLun Li, Bao Deng, JinYu Zhang, YuanChao Lu, Yan Zhao, JianYe Chen, Peng Su

“…Using the extended range phase shift method, we extract the phase velocity dispersion curves of the Rayleigh waves between 0.9 and 10 Hz, which are then used to invert for the high resolution shear-wave velocity structures across the RRFZ beneath the linear arrays. …”
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Numerical Thermo-Structural Simulations for the Design of the Havar Beam Window of a Beryllium Target for Neutron Beam Production by Roberta Dattilo

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Experimental Study on Stability Analysis of a Structure During Excavation Beneath This Structure by Xiaotong He, Zhibin Zhong, Shangheng Huang, Baoxian Liu, Zhile Shu, Wenwu Zhong, Kai Cui, Lining Zheng, Qichao Liu

“…The settlement phenomenon is mainly concentrated around the frame columns Z6, Z7, Z10 and Z11, and the change law of the cumulative settlement value conforms to the linear function distribution. By defining the cumulative settlement rate (a) as an index to measure the influence degree of the existing structure, it is found that the a value of the middle column is the largest, the side column is the second and the corner column is the smallest, and the a value of block layered excavation is the largest, and the central island excavation is the smallest. …”
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FRACTURE BEHAVIOR STUDY OF THE OCTET-TRUSS LATTICE STRUCTURES AND STRUCTURAL TOUGHENING DESIGN by HE Wanqing, WANG Yuhang, LUO Weihong, WANG Zhiyong

“…Octet-truss lattice structure is one of the preferred materials in engineering field with light, high strength and high toughness properties.Three-point bending experiments were carried out on Ti6Al4V Octet-truss lattice structure with shallow pre-crack, and the fracture process was observed by digital image correlation (DIC) technique.To further study the fracture toughness of Octet-truss lattice structure, the fracture behavior of the structure under three-point bending load was analyzed by finite element method.The mechanical response of the truss member for the structure was characterized by the isotropic elastoplastic mechanical model.The validity of the finite element model was verified by experiments.Based on the elastic-plastic fracture behavior of the structure, the <italic>J</italic>-integral method was used to calculate the fracture toughness of the Octet-truss lattice structures.The results show that the fracture toughness of the Octet-truss lattice structure increases linearly with the relative density and the square root of the truss length.For the truss member at the crack tip, truss in different planes have different stress states and deformation modes with the same cross-sectional size.According to the failure mode of the structure, the stress state of truss from different planes is balanced by optimizing the proportion of the cross-section size, which can optimize toughness of the lattice structure with same relative density.…”
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Harmonic Elimination of 25 kV AC Electric Railways Utilizing a New Hybrid Filter Structure by S. Yousefi, M. M. Hosseini Biyouki, A. Zaboli, H. Askarian Abyaneh, S. H. Hosseinian

“…Since electric railway has a non-linear and variable nature, a novel hybrid filter structure is designed that compensates reactive power and eliminates harmonics to attain desired harmonic level regarding the conventional allowable harmonics level standards. …”
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Structural Controls on Cu Metallogenesis in the Dehaj Area, Kerman Porphyry Copper Belt, Iran: A Remote Sensing Perspective by G. Mirzababaei, J. Shahabpour, A. Zarasvandi, S. M. Hayatolgheyb

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Neural network based active control of base isolated structure considering isolator nonlinearity by Nour Elhouda Ghanemi, Mahdi Abdeddaim, Abdelhafid Ounis, Michela Basili

“…IntroductionHybrid control systems combining passive and active strategies have emerged as effective solutions to enhance structural resilience during earthquakes. Recent advancements in smart structures integrate active tuned mass dampers (ATMDs) for precise dynamic response control and seismic hazard mitigation. …”
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An Evaluation of the Structural Behaviour of Historic Buildings Under Seismic Action: A Multidisciplinary Approach Using Two Case Studies by Marco Zucca, Emanuele Reccia, Enrica Vecchi, Valentina Pintus, Andrea Dessì, Antonio Cazzani

“…To represent the non-linear behaviour of the main structural elements, smeared cracking (CSC) constitutive law was adopted. …”
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ON OPTIMUM DESIGN OF FRAME STRUCTURES by Marek Tyburec, Jan Zeman, Martin Kružík, Didier Henrion

“…We show that polynomial optimization solves the frame structure optimization to global optimality by building the (moment-sums-of-squares) hierarchy of convex linear semidefinite programming problems, and it also provides guaranteed lower and upper bounds on optimal design. …”
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Approximated analytical frequency response of a pendulum structure attached with two orthogonal dynamic vibration absorbers by La Duc Viet, Nguyen Ba Nghi

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FLANGE CONNECTIONS OF METAL STRUCTURES by Alexander Surenovich Marutyan, Pavel Sergeevich Chernov

“…The article presents new technical solutions of flanges, rational scope of which is linear, flat and spatial modification of metallic structures. …”
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FORENSIC ISSUES OF CATEGORIZING CONSTRUCTION PROJECTS AS PERMANENT STRUCTURES: METHODOLOGICAL GUIDELINES FOR FORENSIC EXAMINERS by Andrei R. Chudievich, Andrei Yu. Butyrin, Dar'ya V. Khamidova

Subjects: “…permanent structure…”
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Dirac structures on Hilbert spaces by A. Parsian, A. Shafei Deh Abad

“…The graph of any densely defined skew symmetric linear operator on a Hilbert space is, also, shown to be a Dirac structure. …”
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Patterns of linear growth and formation of annulus on scales of pacific herring in Peter the Great Bay by L. A. Chernoivanova

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Structural applications of CODE_BRIGHT: a review on numerical modelling of reinforced soil structures by Aníbal Moncada, Aníbal Moncada, Ivan P. Damians, Ivan P. Damians, Ivan P. Damians

“…Several factors must be considered when modelling RSS, including reinforcement response, which can be non-linear under several circumstance (including time- and temperature-dependencies), soil-reinforcement interaction, soil-structure interaction, and soil response, all of which can be affected by the presence of moisture. …”
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Probabilistic prediction of fatigue damage based on linear fracture mechanics by M. Krejsa, L. Koubova, J. Flodr, J. Protivinsky, Q. T. Nguyen

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Structural stability study of draw-bar for high-speed maglev trains based on the nonlinear analysis method by LIANG Xin, GUO Feng, RAN Lingkun, YU Dalian, LIU Jianxin

“…Therefore, the machining precision should be strictly controlled in the design stage; the non-linear buckling analysis method is more suitable for structural stability analysis of the lightweight draw-bar.…”
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THE DEVELOPMENT OF MATHEMATICAL MODEL OF ECONOMIC EFFICIENCY OF PRODUCTION OF THIN-FILM STRUCTURES by Elena Olegovna Tarasenko, Andrey Vladimirovich Gladkov, Vasily Sergeyevich Tarasenko, Alexey Vyacheslavovich Shaposhnikov

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