Modulation of the lunar semidiurnal tide in GNSS TEC by the variable Earth-Moon distance by Klemens Hocke, Klemens Hocke

“…Analytical equations of tidal wave theory show that the lunar tidal wave modes (2,2), (2,3), (2,4) require travel times of 2.5 days, 2.2 days, and 2.8 days from 0 km to 105 km altitude, depending on their vertical group velocities profile (assuming a constant temperature profile of 250 K). …”
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The Flexural Behavior of Reinforced Ultra-High Performance Engineering Cementitious Composite (UHP-ECC) Beams Fabricated with Polyethylene Fiber (Numerical and Analytical Study) by Ahmed M. Yassin, Mohamed Ahmed Hafez, Mohammad Mohie Eldin

“…This technique was validated using previous experimental results for UHP-ECC beams and found to be accurate and effective. The previous FE model was used to conduct a parametric study and the variables—the compressive strength of the concrete, the percentage of the volume content of polyethylene fibers, the tensile reinforcement ratio, and the span-to-depth ratio—were found to be effective upon the flexure behavior of the reinforced UHP-ECC beams. …”
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Compositional Causal Identification from Imperfect or Disturbing Observations by Isaac Friend, Aleks Kissinger, Robert W. Spekkens, Elie Wolfe

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Optimization of a new catalyst composition for trimerization of ethylene by Mohammad Javad Sharifi, Alireza Fazlali, Seyed Hamed Mahdaviani, Davood soudbar

“…The central composite design (CCD) model with three main parameters in three response levels for each factor was applied to analyze the effects of the parameters. …”
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Multi-objective optimization of an open-pit mining system to determine safety buffer using the modified NBI method and the meta-model approach by Tahereh Khajvandsany, Hossein Amoozad Khalili, Ramezan Rezaeyan, Kourosh Nemati

“…The central composite design (CCD) method was used to develop the design of experiments (DOE) for the design variables. …”
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Soybean Yield Estimation Using Improved Deep Learning Models With Integrated Multisource and Multitemporal Remote Sensing Data by Jian Li, Junrui Kang, Ji Qi, Jian Lu, Hongkun Fu, Baoqi Liu, Xinglei Lin, Jiawei Zhao, Hengxu Guan, Jing Chang, Zhihan Liu

“…County-level yield data from 12 U.S. states were used, supplemented by multitemporal remote sensing datasets (MODIS surface reflectance, vegetation indices, and environmental variables). Empirical analyses showed that TransBiHGRU-PSO demonstrated improved estimation capability and generalizability compared to multiple benchmark models. …”
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Optimizing Beam Stiffness and Beam Modal Response with Variable Spacing and Extrusion (VaSE) by Patrick N. Murphy, Richard A. Vittum, Bashir Khoda

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A novel theoretical approach to predict the interannual variability of sulfur in Mercury’s exosphere and subsurface by S. Verkercke, J. Y. Chaufray, F. Leblanc, A. Georgiou, M. S. Phillips, G. Munaretto, J. Lewis, A. Ricketts, L. Morrissey

“…Using a 3D exospheric global model with a Monte-Carlo test-particles approach and accounting for species diffusion in the first meter of Mercury’s regolith, this study aims to provide the first global prediction of the interannual variability of neutral sulfur density in both Mercury’s exosphere and subsurface. …”
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Evaluating drivers of spatio-temporal variability in fish fauna of Manasbal Lake of Kashmir Himalayas by Tabasum Yousuf, Saima Andrabi, Shaista Javaid, Sinan Nissar, Yahya Bakhtiyar

“…Significant associations between fish composition and abiotic factors were also determined by redundancy analysis (RDA). …”
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Marine organic aerosol at Mace Head: effects from phytoplankton and source region variability by E. Chevassus, K. N. Fossum, D. Ceburnis, L. Lei, C. Lin, C. Lin, W. Xu, W. Xu, C. O'Dowd, J. Ovadnevaite

“…Overall, these findings emphasize the need for longer-term investigations to further map the influence of phytoplankton taxa variability on aerosol composition and the broader impacts on aerosol–climate interactions.…”
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Prediction of stress level in military submariners, based on physical conditioning and sleep quality variables by Maria Elisa Koppke Miranda, Pedro Moreira Tourinho, Guilhermo Brito Portugal, Ulisses Tirolo Taddei, Leonardo de-Souza Mendes Leal, Bruno Ferreira Viana, Priscila dos Santos Bunn, Rodrigo Gomes de Souza Vale

“… The objective of the study was to predict the level of stress in military submariners based on physical fitness and sleep quality variables. Cross-sectional and correlational research, with a sample of 40 male submariners (28.70±3.98 years old). …”
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Disentangling the effects of eutrophication and natural variability on macrobenthic communities across French coastal lagoons by Jones, Auriane G., Schaal, Gauthier, Boyé, Aurélien, Creemers, Marie, Derolez, Valérie, Desroy, Nicolas, Fiandrino, Annie, Mouton, Théophile L., Simier, Monique, Smith, Niamh, Ouisse, Vincent

“…Here, we analyze a dataset composed of macrobenthic invertebrate abundances and environmental variables (hydro-morphology, water, sediment and macrophytes) gathered across 29 Mediterranean coastal lagoons located in France, to characterize the main drivers of community composition and structure. …”
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Then and now: umbrella variables mask temporal mechanisms of structural racism in US urban environments by Victoria Fisher, Allison Boretsky, Nicole Alkhouri, Nadia N. Abuelezam

“…Racist urban development policies and capitalist municipal management have continued the cycle of poverty experienced by many in the US. Modeling this disadvantage often relies on composite, or ‘umbrella’, socioeconomic variables. …”
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Predicting piglet survival until weaning using birth weight and within-litter birth weight variation as easily measured proxy predictors by J.M. Mbuthia, C. Kasper, M. Zenk, G. Bee, C.C. Metges, G. Daş

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Stresses in Composite Shafts Subjected to Unbalance Excitation and Transmitted Torque by H. B. H. Gubran, S. P. Singh, K. Gupta

“…Shafts of uniform as well as variable wall thickness are considered. The shaft is modeled as a simply supported Timoshenko beam in which shear deformation, rotary inertia and gyroscopic effects have been included. …”
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Effect of Oak Wood Aging on Chemical Composition of Wheat Distillate by Natalya V. Shelekhova, Irina M. Abramova, Tamara M. Shelekhova, Liubov I. Skvortsova, Natаlya V. Poltavskaya

“…The thermal treatment mode and extraction time were variables. The authors developed a set of express methods to define the composition of volatile organic impurities and the ionic composition of grain distillates. …”
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Acid Aging of CFRP Composite Materials for Solar UAV Structure by Bing Shen, HongJun Liu, Shengli Lv, Zheng Li, Wen Cheng

“…Several typical empirical models were analyzed, and a hyperbolic tangent function empirical model with moisture content as the main variable was used to predict the CFRP flexural strength degradation process, and good results were obtained. …”
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OPTIMIZATION DESIGN OF COMPOSITE DRILL-BIT SPHERICAL SLIDING BEARING by WU KaiSong, YAN CaiXiu, DENG Tao, ZHAO Pan, JIA TongWei

“…Therefore,the ANSYS finite element analysis was adopted to establish the spherical composite bearing three-dimensional model; Used the contact finite element calculation to comparison and analysis the surface pressure distribution size and regularity of spherical and cylindrical; Lastly,used the spherical radius as design variables and the peak contact pressure as objective function establish composite bit sliding bearing optimization design model. …”
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Biomechanics over body composition: what matters most in the 40 by Emma Sterne, Chukwudum Okpalaoka, Pavan Patel, Alexa Fraga, Caitlin Kucharski, Pete Bommarito, Monique Mokha

“…A multiple linear regression model was developed using the stepwise technique to predict post-training 40 times from post minus pre changes (Δ) in running biomechanics and body composition variables, p < .05.Results The fitted regression model was 4.654 – 0.972 * (ΔLMM) − 0.961 * (ΔBF%) − 10.078 (ΔGCT) + 0.048 * (ΔvGRF). …”
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Mechanical Properties and Strength Grading of Engineered Bamboo Composites in China by Siyuan Tang, Aiping Zhou, Jiannan Li

“…Engineered bamboo composite (EBC) is a new high-strength anisotropic structural material, which has standardized sections and less inherent variability than the natural material. …”
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