Showing 1,581 - 1,600 results of 10,747 for search 'construction problems', query time: 0.18s Refine Results
  1. 1581

    Analysis of Related Technical Problems of RCCD Ultra-long Core Samples Based on Huangdeng Hydropower Station by HU Hongxia

    Published 2020-01-01
    “…For the 24.6 m of the world's longest roller compacted concrete coresamples taken out during the quality inspection of RCCD (roller compacted concretedam) at Huangdeng Hydropower Station, in order to better analyze and summarize theexperience of roller compacted concrete construction technology and constructionmanagement experience, combined with the results of concrete mixing test, revisionof construction specifications, inter-layer binding technology, temperature andcrack control technology and construction management measures, this paper analyzesthe performance and related technical problems of the ultra-long core sample andconcrete, and suggests that the acquisition of ultra-long core samples is directlyrelated to the quality of raw concrete materials, mix ratio, uniformity andworkability of concrete mixture, inter-layer binding properties, mechanicalproperties, volume stability, anti-cracking performance and constructionmanagement measures. …”
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  2. 1582

    Optimization Location Routing Problem (LRP) of Humanitarian Aid Distribution Using HGASA Method in Sigi District by Serli Bombang, Bonivasius Prasetya Ichiarto, Humiras Hardi Purba

    Published 2025-02-01
    “…The polemic of uneven assistance and delays in the event of a natural disaster is the most common thing that occurs during a natural disaster. Location Routing Problem is a continuation of the classical routing problem that combines strategic and operational decisions with the facility location problem and the vehicle routing problem. …”
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  3. 1583

    A numerical method for solving ill-posed problems for two-dimensional integral equations of the first kind by Igor Eduardovich Naats, Victoria Igorevna Naats, Roman Andreevich Ryskalenko

    Published 2022-09-01
    “…This assumes that the source data in the equation can be set approximately with errors, and the integral equation kernel may have features that leads to the formulation of so-called ill-posed problems. This in turn requires the construction of regularizing algorithms in accordance with the theory of solving ill-posed problems of computational mathematics. …”
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  4. 1584

    What do forest firefighters think about organization and infrastructure problems in combating large forest fires? by İsmail Şafak, Devrim Karademir

    Published 2025-06-01
    “…The study's results indicate that problems stemming from personnel employment, the amount of construction equipment, the quantity of aircraft, fire suppression infrastructure, communication and coordination, and occupational health and safety have a moderate impact on the growth of forest fires. …”
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    Article
  5. 1585

    THE PROBLEM OF PATIENT-FOCUSED INNOVATION OF TOOTH-TECHNICAL MATERIALS SCIENCE IN THE CONTEXT OF INCREASING THE EFFICIENCY OF THE DENTAL TREATMENT by І.V. Yanіshen, O. L. Fedotov

    Published 2018-03-01
    “…By the largest reserves of the improvement is characterized the compliance of materials for the fabrication of immediate dentures – 36.5%, by the lowest – removable orthopedic constructions – 18,2%; compliance of the system "material-construction" in the manufacture of fixed constructions of dentures due to concerted selection of dental materials can be improved by 31.1%. …”
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  6. 1586

    Arduino-Based Mobile Robotics for Fostering Computational Thinking Development: An Empirical Study with Elementary School Students Using Problem-Based Learning Across Europe by Rolando Barradas, José Alberto Lencastre, Salviano Pinto Soares, António Valente

    Published 2024-10-01
    “…The present article explores the impact of educational robotics on fostering computational thinking and problem-solving skills in elementary school students through a problem-based learning approach. …”
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  7. 1587

    DETECTION OF CLAMPING FORCES ON MOUNTING A CONSTRUCTION VIA NEURAL NETWORK FOR THE FINITE-ELEMENT MODEL OF COMPRESSOR-CONDENSING UNIT by S. V. Krasnovskaya, V. V. Naprasnikov

    Published 2017-12-01
    “…The article provides a brief review of a condensing unit and problems of mathematic simulation. It examines the influence of pretension on the strain-stress state of a construction by means of finiteelement modeling. …”
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  8. 1588

    High-order accuracy approximation for the two-point boundary value problem of the fourth order with degenerate coefficients by A.A. Sobolev, M.R. Timerbaev

    Published 2017-12-01
    “…The paper deals with the construction of high-order accuracy finite element schemes for the fourth-order ordinary differential equation with degenerate coefficients on the boundary. …”
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  9. 1589
  10. 1590

    Existence and Stability of the Solutions with Internal Layers in Multidimensional Problems of the Reaction-Diffusion-Advection Type with Balanced Nonlinearity by Marina A. Davydova, Nikolay N. Nefedov

    Published 2017-02-01
    “…We use a more efficient method for localizing the transition surface, which permits one to develop our approach to a more complicated case of balanced advection and reaction (the so-called critical case). To justify the constructed asymptotics, we use and develop, to this class of problems, an asymptotic method of differential inequalities, which also permits one to prove the Lyapunov stability of such solutions, as stationary solutions of the corresponding parabolic problems.…”
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  11. 1591
  12. 1592

    Determining Factors for the Diagnosis of Multidimensional Depression and Its Representation: A Composite Indicator Based on Linear Discriminant Analysis by Matheus Pereira Libório, Angélica C. G. Santos, Marcos Flávio Silveira Vasconcelos D’angelo, Hasheem Mannan, Cristiane Neri Nobre, Ariane Carla Barbosa da Silva, Petr Iakovlevitch Ekel, Allysson Steve Mota Lacerda

    Published 2025-07-01
    “…This study proposes a novel approach to constructing composite indicators, utilizing discriminant analysis to identify the determining factors for the diagnosis of multidimensional depression and to provide an index that represents the multidimensionality of this construct. …”
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  13. 1593

    Center Manifold Method in the Asymptotic Integration Problem for Functional Differential Equations with Oscillatory Decreasing Coefficients. I by P. N. Nesterov

    Published 2014-06-01
    “…In the first part of this work, we propose an algorithm for an approximate construction of the critical manifold. Moreover, we establish the unique solvability for auxiliary algebraic problems that occur within the algorithm implementation.…”
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  14. 1594
  15. 1595

    The Impact of Drilling Operation Parameters on the Lost Circulation Problems for Oil and Gas Wells Based on Field Data by Mayssa N. Shehab, Fahad M. Al Najm, Mohammed H. Al Kaabi

    Published 2023-08-01
    “…The majority of the curing this problem require time for preparation, placement or setting. …”
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  16. 1596

    Construction of a Parallel Training Environment Model for Multi-Agent Deep Reinforcement Learning in Far-Sea Aerial Confrontation by Zhang Yuan, Wang Jiangnan, Wang Wei, Li Xuan

    Published 2025-06-01
    “…The quality of the environment model determines whether the deep reinforcement learning system can efficiently and accurately learn and train to make good decisions. Aiming at the problems of idealized air combat environment construction and task scenarios in the context of far-sea and remote combat, this paper constructs a parallel training environment for multi-agent deep reinforcement learning in far-sea air combat. …”
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  17. 1597

    Physical activity and internalization problems in middle school students: the chain mediating role of rumination thinking and peer acceptance by Kelei Guo, Shengyong Chen, Zhen Hui, Feng Guo, Jun Xiang, Dong Li

    Published 2025-07-01
    “…Abstract This study explores methods to improve internalizing problems in middle school students through physical exercise, aiming to construct a mediational model that includes physical exercise, Rumination, peer acceptance, and internalizing problems. …”
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  18. 1598

    From audiovisual projection to personal reflection: Can films really stimulate students' problem-solving abilities? by Ricardo Braga Silva, Paulo Miguel Martins

    Published 2025-05-01
    “…The results indicate a positive correlation between exposure to films and the construction of hypothetical problem-solving scenarios, with participants reporting new insights into handling potential future difficult situations in their own lives. …”
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  19. 1599
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