Development and Application of Model Test System for Reconstruction and Expansion of Existing Shallow Single-Hole Tunnel into Twin-Arch Tunnel by Yanling Jia, Aohui Ouyang, Siyu Wang, Xing Liang, Bin Wang, Chang Liu, Fei Ye

“…When the excavation distance between the two tunnels exceeded twice the length of the single-tunnel span, its effect on the stresses and deformation of the reconstructed twin-arch tunnel was negligible.…”
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Hybridize Machine Learning Methods and Optimization Techniques to Analyze and Repair Welding Defects via Digital Twin of Jidoka Simulator by Ahmed M. Abed, Tamer S. Gaafar

“…We are creating a “digital Jidoka twin system” (SQ(R/I/E)) with a controller segment programmed with machine learning (ML) algorithms that use the MFEM’s huge and uneven data to sort defects and their causes. …”
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Establishing Specific Conductance-Chloride Relationships for Quaternary and Bedrock Aquifers in the Twin Cities Metropolitan Area, Minnesota, United States by John R. McDaris, Joshua M. Feinberg, Jonathan Levine, Anthony C. Runkel

“…Chloride concentrations in surface and groundwater within the Twin Cities Metropolitan Area of Minnesota are increasing and hand-sample monitoring is not sufficient to understand the scale and temporal nuance of chloride concentrations within the aquifer system. …”
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Factor’s Influence Analysis of Frost Heave during the Twin-Tunnel Construction Using Artificial Horizontal Ground Freezing Method by Rong-bao Hong, Hai-bing Cai, Meng-kai Li, Ya-ru Li

“…Numerical simulation results show that the interaction of twin-tunnel freezing is weakened with the increase in tunnel clear distance. …”
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Generative spatial artificial intelligence for sustainable smart cities: A pioneering large flow model for urban digital twin by Jeffrey Huang, Simon Elias Bibri, Paul Keel

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Study on Control of Wall Deflection in Earth Stepped-Twin Retaining Wall Using Anchor Method by means of Numerical Simulation by Kazuki Maehara, Akihiro Hamanaka, Takashi Sasaoka, Hideki Shimada, Seiya Sakuma

“…To cope with this, the method named earth stepped-twin retaining wall is increasingly being applied. …”
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Sliding Mode Disturbance Observer-Based Control of a Laboratory Twin Rotor Multi Input-Multi Output System by Seyyed Sajjad Moosapour, Habib Mehdipour, Mehrdad Keramatzadeh

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Semigroup of Finite-State Deterministic Intuitionistic Fuzzy Automata with Application in Fault Diagnosis of an Aircraft Twin-Spool Turbofan Engine by Sajida Kousar, Farah Aslam, Nasreen Kausar, Yaé Ulrich Gaba

“…The twin-spool turbofan engine is an important component of almost every modern aircraft. …”
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Alterations in Sensitivity to Estrogen, Dihydrotestosterone, and Xenogens in B-Lymphocytes from Children with Autism Spectrum Disorder and Their Unaffected Twins/Siblings by Martyn A. Sharpe, Taylor L. Gist, David S. Baskin

“…B cells were obtained from 11 ASD subjects, their unaffected fraternal twins, and nontwin siblings. Controls were obtained from a different cell bank. …”
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A Prospective Observational Study to Determine Perinatal Outcome of Second Twin According to Mode of Delivery in a Tertiary Care Hospital by Hetal Patel, Shelley Seth, Poulomi Roy, Chiranjit Ghosh, Shyamal Dasgupta, Pallabi Das, Shrabana Choudhuri, Jyoti Kumari, Debopriya Saha, Md Mehebub Alam

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A fluidez territorial na fronteira ocidental da Amazônia: as cidades gêmeas Tabatinga (Brasil) e Leticia (Colômbia) by Emerson Flávio Euzébio

Subjects: “…Amazon; frontier; twin cities; territorial fluidity…”
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Experimental Characterization of Reversible Oil-Flooded Twin-Screw Compressor/Dry Expander for a Micro-Scale Compressed Air Energy Storage System by Marco Francesconi, Arianna Baldinelli, Luca Sani, Marco Antonelli

Subjects: “…oil-flooded twin-screw compressor…”
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Complete Hydatidiform Mole Presenting as a Placenta Accreta in a Twin Pregnancy with a Coexisting Normal Fetus: Case Report by Marijo Aguilera, Philip Rauk, Rahel Ghebre, Kirk Ramin

“…A twin pregnancy with a complete hydatidiform mole and a coexisting normal fetus (CHMF) is a rare clinical scenario, and it carries many associated pregnancy and postnatal risks. …”
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Epigenome-wide association study of Chinese monozygotic twins identifies DNA methylation loci associated with estimated glomerular filtration rate by Xueting Qi, Jingjing Wang, Tong Wang, Weijing Wang, Dongfeng Zhang

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Retracted: Semigroup of Finite-State Deterministic Intuitionistic Fuzzy Automata with Application in Fault Diagnosis of an Aircraft Twin-Spool Turbofan Engine by Journal of Function Spaces

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Airway morphology, hyoid position, and serum inflammatory markers of obstructive sleep apnea in children treated with modified twin-block appliances by Jun Duan, Wanyuan Xia, Xuelei Li, Feng Zhang, Fan Wang, Mengwei Chen, Qian Chen, Bing Wang, Bing Li

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The Impact of Gestational Diabetes Mellitus on the Development of Preeclampsia in Twin Pregnancies: A Retrospective Cohort Study Conducted at a Tertiary Hospital by Wu H, Zhang L, Xie Z, Cai H, Zhang J, Yu L

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A novel method for intelligent operation and maintenance of transformers using deep visual large model DETR + X and digital twin by Xuedong Zhang, Wenlei Sun, Ke Chen, Shijie Song

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Digital twin of a large-aspect-ratio Rayleigh–Bénard experiment: role of thermal boundary conditions, measurement errors and uncertainties by Philipp P. Vieweg, Theo Käufer, Christian Cierpka, Jörg Schumacher

“…We start by generating a digital twin of one standard experimental set-up. This twin is subsequently simplified in steps to understand the effect of non-ideal thermal boundary conditions, and the experimental measurement procedure is mimicked using numerical data. …”
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