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Study on diffusion coefficient of benzene and ethyl benzene vapours in nanoporous silica aerogel and silica aerogel-activated carbon composites
Published 2019-03-01“…In this study, nanoporous silica aerogel and silica aerogel-activated carbon composites have been synthesized using a water glass precursor by cost effective ambient pressure drying method. …”
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542
Weibull Statistic and Artificial Neural Network Analysis of the Mechanical Performances of Fibers from the Flower Agave Plant for Eco-Friendly Green Composites
Published 2024-12-01“…The ANN provided correlation coefficients (R2) of 0.9897, 0.9971, 0.9993, and 0.9939 for training, validation, testing, and all datasets respectively, which were able to accurately predict the experimental data. The proposed model would be of tremendous assistance to engineers and designers in obtaining green composite materials that are based on natural fibers and thereby more durable. …”
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543
Study on optimization of Al6061 sphere surface roughness in diamond turning based on central composite design model and grey wolf optimizer algorithms
Published 2025-02-01“…This paper presents optimization results of the Al6061 surface roughness in turning ultra-precision based on the central composite design method (CCD) and the grey wolf optimization algorithm (GWO). …”
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544
Modeling of an automated recruitment planning system for educational organizations
Published 2024-07-01“…The purpose of the study is to consider the stages of design and development of an automated information system for planning the staffing of educational organizations of the Russian Ministry of Internal Affairs system with a variable composition.Method. The construction of a conceptual and mathematical model of the system being developed is based on a systems approach and methods of mathematical modeling.Result. …”
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545
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Dietary and environmental factors affecting the dynamics of the gut bacteria in Tibetan Awang sheep (Ovis aries) across divergent breeding models
Published 2025-02-01“…However, knowledge regarding their gut bacterial composition remains limited.MethodsA comprehensive 16S rRNA highthroughput sequencing was performed on fecal samples from 15 Awang sheep under pure grazing, semi-captivity, and full captivity breeding models.ResultsOur results revealed that Firmicutes and Bacteroidetes were the most abundant bacterial phyla, while Christensenellaceae_R-7_group, Romboutsia, Rikenellaceae_RC9_gut_group, Ruminococcus, and Bacteroides were prevalent genera in the gut microbiota of Awang sheep. …”
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548
A COMPOSITION PATCH ANTENNA
Published 2024-12-01“…Numerical simulations were carried out within a semi-open resonator model, with proper account of all the boundary conditions as specified in the finite-element method. …”
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549
Optimizing economics of machining for LM25Al/VC composite material using analytical modeling, deep neural network and GRA coupled with RSM
Published 2025-03-01“…In this case, the DNN technique delivered superior results among the methods considered. Additionally, new analytical models and DNN programming were developed in this work to predict machining costs, power consumption, material removal rate, and surface finish quality. …”
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550
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551
Deep Reinforcement Learning-Based Distribution Network Planning Method Considering Renewable Energy
Published 2025-03-01“…Based on the proximal policy optimization algorithm, an actor-critic-based autonomous generation and adaptive adjustment model for DNP is constructed. Finally, the representative test case is selected to verify the effectiveness of the proposed method, which indicates that the proposed method can improve the efficiency of DNP and promote the digital transformation of DNP.…”
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552
Shisha tobacco component composition
Published 2019-03-01“…The selection of the component composition of the hookah mixture, taking into account the cost of the final product and its toxic load, is a modern technological method for modeling the ingredient composition, which is based on tobacco raw materials". …”
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553
A fault calculation method for large-scale photovoltaic integrated transmission systems
Published 2025-04-01“…Subsequently, the positive sequence equivalent principle for the large-scale PV transmission system is customized based on the symmetrical component method and is integrated with the composite sequence network under various fault conditions. …”
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554
METHODS AND MODELS OF RESEARCH OF INVESTMENT ATTRACTIVENESS AND COMPETITIVENESS OF PROJECT-ORIENTED ENTERPRISE IN THE PROCESS OF CREATING INNOVATIVE HIGH-TECH
Published 2022-09-01“…Tasks to be solved are: to use component method for the analysis of innovativeness of created high-tech products; to study investment attractiveness of an innovation project with the use of expert assessments and the method of planning experiments; to substantiate the composition of a diversification project portfolio for investment taking into account the limited possibilities of the enterprise based on the method of integer optimization; to study the performance of the project portfolio using agent-based imitational modeling. …”
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555
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A new determination method of hydraulic support resistance in deep coal pillar working face
Published 2025-05-01Get full text
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557
A mathematical model of mechanical properties influenced by manganese in DH36 high-strength ship plate steel
Published 2016-12-01“…Based on the model,the impact of composition fluctuation of manganese on various mechanical properties was emphatically analyzed. …”
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558
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The Optimization Design of Variable Valve Parameters for Internal Combustion Engines Considering the Energy Consumption of a Composite Electromagnetic Valve Mechanism
Published 2025-03-01“…To this end, this paper establishes a thermodynamic model of the engine based on the composite electromagnetic valve mechanism. …”
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560
MATHEMATICAL MODEL FOR SEARCHING AND DETECTING EXPLOSIVE DEVICES WITH NON-CONTACT TARGET SENSORS BY THE METHOD OF NON-LINEAR RADAR
Published 2020-09-01“…Moreover, there is an urgent need to substantiate the tactical and technical requirements for this type of equipment when changing the conditions and methods of their application. Based on the analysis of previous studies, both domestic and foreign experts, on the use of electromagnetic methods of search and detection of man-made objects in sheltered environments (soil, snow, water, etc.), proposed an improved mathematical model of search and detection of explosive devices with non-contact target sensors nonlinear radar. …”
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