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unstructures » structured (Expand Search), unstructural (Expand Search)
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2521
Novel Automatic Classification Method for Geological Structures in Carbonate Formations Based on Electrical Imaging Logging
Published 2025-02-01“…Finally, these features are used to train an extreme gradient boosting (XGBoost) model, enabling the automatic classification of different geological structures. Validation using actual carbonate logging data shows that the classification accuracy of this method exceeds an 80% agreement rate with core observations. …”
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2522
A Numerical Approach to Calculate the Radiation Efficiency of Baffled Planar Structures Using the Far Field
Published 2014-06-01“…In this work a different approach is used, based in the so-called Propagating Matrix, which is useful for calculating the sound pressure of an arbitrary number of points into free space, and it can be employed to estimate the sound power by integrating over a finite number of pressure points over a hemispherical surface surrounding the vibrating structure. Through numerical analysis, the advantages/disadvantages of the current method are investigated, when compared with numerical methods based on near field data. …”
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2523
MODELING AND MATHEMATICAL PROCESSING OF GEODETIC LEVELING NETWORK WHILE MONITORING SETTLEMENT OF UNIQUE ENGINEERING STRUCTURES
Published 2009-05-01“…The paper shows that reliability and trust of geodetic structure monitoring are related with new principles of leveling network construction, their testing and mathematical processing. …”
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2524
Modelling of Correlated Ordinal Responses, by Using Multivariate Skew Probit with Different Types of Variance Covariance Structures
Published 2019-11-01“…The Schizophrenia Collaborative Study data invokes the proposed MFSN model. The results confirm that the first-order autoregressive (AR(1)) structure substantially enhances the estimation of the parameters. …”
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2525
Determination of the enthalpy of evaporation of pentaerythritol esters of various structures using gas chromatographic retention characteristics
Published 2025-07-01“…The enthalpies of evaporation calculated based on the enthalpies of sorption and logarithmic retention indices within the limits of error of the correlation dependencies coincide with the literature data and the values predicted by the quantitative structure–property relationship method. …”
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2526
Soft-Sediment Deformation Structures Interpreted as Seismites in the Kolankaya Formation, Denizli Basin (SW Turkey)
Published 2014-01-01“…The deformation mechanism and driving force for the soft-sediment deformation are related essentially to gravitational instability, dewatering, liquefaction-liquidization, and brittle deformation. Field data and the wide lateral extent of the structures as well as regional geological data show that most of the deformation is related to seismicity and the structures are interpreted as seismites. …”
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2527
Path analysis of the effect of irrational beliefs on the structures of the planned behavior model in the field of physical activity
Published 2022-05-01“…A path analysis model was used to analyse the relationships between variables and calculate the direct and indirect structural effects. Also, multiple regression analysis was used to predict theoretical constructs of planned behavior using irrational beliefs dimensions. …”
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2528
The impact of environmental conditions of Persian Gulf on the probability of chloride corrosion initiation in reinforced concrete structures
Published 2023-12-01“…According to the technical literature, the amount of chloride that is transported by air from the sea surface depends on the amount of salt in the seawater in that area, the speed and direction of the wind, and the distance from the sea. Accordingly, data on the highest annual wind speed and direction of the wind are collected in several reinforced concrete structures (RC structures) in southern cities near the Persian Gulf at different distances from the sea. …”
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2529
Development of a hybrid model of the tensile behaviour of weft-knitted structures for medical compression stockings
Published 2025-07-01“…A unit cell was used to model the weft-knitted fabric at a mesoscopic level. 3D-shell elements and connectors were combined in the unit cell to model the mechanical behaviour of the loop structure and the inlay yarn, respectively. Mechanical and structural parameters were identified from experimental data. …”
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2530
Machine Learning Models for Carbonation Depth Prediction in Reinforced Concrete Structures: A Comparative Study
Published 2025-06-01“…The methodologies developed here can be extended beyond carbonation modeling to other deterioration processes, supporting data-driven strategies for maintenance planning and resilience design in RC structures.…”
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2531
Multifunctional TPMS-based interpenetrating phase composites: A comprehensive review of structure, properties, piezoelectricity and applications
Published 2025-07-01“…It highlights their pivotal role in advancing technology and addressing contemporary challenges while illuminating the uncharted possibilities presented by TPMS cellular structures in the dynamic landscape of 3D printing.…”
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2532
Damage Identification in Large-Scale Structures Using Time Series Analysis and Improved Sparse Regularization
Published 2025-01-01“…The academic community has paid much attention to the research topic of structural health monitoring (SHM) and damage identification for several decades, which flourishes the development of diverse damage identification approaches. …”
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2533
Predicting Future Deterioration of Hydraulic Steel Structures with Markov Chain and Multivariate Samples of Statistical Distributions
Published 2014-01-01“…Combined effects of several complex phenomena cause the deterioration of elements of steel hydraulic structures on the nation’s lock systems: loss of protective systems, corrosion, cracking and fatigue, impacts, and overloads. …”
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2534
Appearance of Additional Electronic Conductivity Silicon Structures in the Atmosphere of Wet Ammonia: ab Initio Calculations
Published 2016-06-01“…The paper critically reviewed experimental data and their theoretical explanations related to the change in conductivity of the various silicon structures arising from the adsorption of ammonia molecules. …”
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2535
FINANCIAL RISK MANAGEMENT STRATEGIES FOR BUSINESS STRUCTURES IN CONDITIONS OF MILITARY CONFLICTS: THE CASES OF UKRAINE AND ISRAEL
Published 2025-04-01“… The article explores financial risk management strategies for business structures during military conflicts, focusing on the cases of Ukraine and Israel. …”
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2536
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2537
Study the pharmacokinetics and bioavailability in the creation of new original drugs peptide structures and their optimum dosage forms
Published 2013-09-01“…The review focuses on the pharmacokinetics and bioavailability studies for creating new original drugs peptide structure. Much attention is paid to methods for the quantitative determination of peptide compounds in biological material, the study of their pharmacokinetic characteristics, factors that affect the bioavailability of these substances, as well as provide some pharmacokinetic data embedded in the practice of medicines peptide structure.…”
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2538
Modeling of Ultrasonic Flaw Detection Processes in the Task of Searching and Visualizing Internal Defects in Assemblies and Structures
Published 2023-12-01“…They are widely used in scientific studies, specifically, those dealing with large amounts of experimental data. In the presented paper, inverse problems in mechanical engineering and structural diagnostics are considered. …”
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2539
Numerical Simulation of Dynamic Response of Slab-Column Structures under Fire-Explosion Coupled Effects
Published 2025-01-01“…In the validation stage, two distinct finite element models were developed and rigorously validated against full-scale experimental data from existing literature. First, a heat transfer and structural fire model was validated against the large-scale RC space frame fire tests conducted by Wang et al. …”
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2540
Faktor-Faktor Yang Mempengaruhi Struktur Modal Pada Perusahaan Pertambangan Yang Terdaftar Di Bursa Efek Indonesia Periode 2013-2017
Published 2019-12-01“…The tool for analyzing research data is using SMART PLS. The results of the study stated that company size (X1) had no effect on capital structure (Y), profitability (X2) had no effect on capital structure (Y), company growth (X3) had no effect on capital structure (Y), and asset structure (X4 ) affect the capital structure (Y).…”
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