Showing 9,601 - 9,620 results of 10,747 for search 'construction problems', query time: 0.15s Refine Results
  1. 9601

    A novel approach to multi-objective portfolio selection: modeling emerging financial markets using satisfaction functions and fuzzy values by Milad Saleki, Mohamad Saber Falah Nejad, Davood Shishebori, Mohammad Aref Dehghani Tafti

    Published 2024-11-01
    “…In other words, the proposed model outperformed the base model in all the objectives under study.Originality/Value: As distinguishing features of the proposed model of this research, one can mention: 1) constructing and using fuzzy distribution functions and calculating ideal values and expected ranges for all desired objectives considering the conditions of the examined market research using simple mathematical modeling, 2) utilizing the experience of financial market experts in planning model for selecting suitable investment portfolios in emerging financial markets, 3) presenting an approach to calculating portfolio risk in conditions of information scarcity in the problem environment using fuzzy theory, 4) development of the fuzzy benchmark-criterion method for weighting the objectives under study in the problem considering the expertise of financial market experts, and 5) simple modeling, considering interval fuzzy values in the model, and being usable for all individuals with different levels of investment knowledge.…”
    Get full text
    Article
  2. 9602

    Investigation of a Nonlinear XNOR Logic Gate Based on an Induced Nonlinear Phase Shift of Spin Waves by R. V. Haponchyk, I. Yu. Tatsenko, V. V. Vitko, A. A. Stashkevich, T. Goto, A. B. Ustinov

    Published 2023-12-01
    “…However, a number of important issues remain to be underexplored, including the problem of induced nonlinear phase shift of spin waves. …”
    Get full text
    Article
  3. 9603

    Transmission Line Connection Fittings and Corrosion Detection Method Based on PCSA-YOLOv7 Former by Zhiwei SONG, Xinbo HUANG, Chao JI, Fan ZHANG, Ye ZHANG

    Published 2024-06-01
    “…The experimental results show that the proposed method is superior to 12 existing state-of-the-art object detection algorithms in comprehensive detection performance of the constructed TLCF dataset, with the mAP0.5 of the test set reaching 94.9 %. …”
    Get full text
    Article
  4. 9604

    Knowledge Graph Representation Fusion Framework for Fine-Grained Object Recognition in Smart Cities by Yang He, Ling Tian, Lizong Zhang, Xi Zeng

    Published 2021-01-01
    “…Specifically, the Graph Attention Network (GAT) is employed to learn the knowledge representation from the constructed knowledge graph modeling the categories-subcategories and subcategories-attributes associations. …”
    Get full text
    Article
  5. 9605

    Performance of Fitness Functions Based on Natural Frequencies in Defect Detection Using the Standard PSO-FEM Approach by Xiao-Lin Li, Roger Serra, Julien Olivier

    Published 2021-01-01
    “…Structural defect detection based on finite element model (FEM) updating is an optimization problem by minimizing the discrepancy of responses between model and measurement. …”
    Get full text
    Article
  6. 9606

    A numerical scheme to simulate the distributed-order time 2D Benjamin Bona Mahony Burgers equation with fractional-order space by Hais Azin, Omid Baghani, Ali Habibirad

    Published 2025-04-01
    “…An approximate solution is extracted for the original problem by solving constructed equation system. Several examples are examined to demonstrate the accuracy and capability of the method. …”
    Get full text
    Article
  7. 9607

    Quantitative Relationship Between Components and Pour Point of Natural Esters and Its Molecular Mechanism by Guochao Qian, Weiju Dai, Jian Hao, Dawei Feng, Jing Xu

    Published 2025-01-01
    “…The quantitative relationship between components and pour point of natural esters was constructed, and its average relative percentage error in prediction of pour point is within 7.5%, which show its good predictive performance. …”
    Get full text
    Article
  8. 9608

    Design of a mechanical teaching vehicle controlled by cam structure by Guanghong Xin, Huanbin Chen, Shudong Xie, Shengxu Shi, Chenxu Fang

    Published 2025-04-01
    “…Furthermore, this teaching vehicle cross-integrates multidisciplinary knowledge, provides a cross-course practice platform, aids students in constructing a comprehensive knowledge system, elucidates the entire process from design to manufacture, and significantly improves the application, practice, and innovation capabilities of mechanical technology. …”
    Get full text
    Article
  9. 9609

    High precision light field image depth estimation via multi‐region attention enhanced network by Jie Li, Wenxuan Yang, Chuanlun Zhang, Heng Li, Xinjia Li, Lin Wang, Yanling Wang, Xiaoyan Wang

    Published 2024-12-01
    “…Firstly, we construct a multi‐region disparity selection module based on angular patch, which selects specific regions for generating angular patch, achieving representative sub‐angular patch by balancing different regions. …”
    Get full text
    Article
  10. 9610

    Preliminary Validation of Multimodal Feature Matching Method for Multi-source DEM Registration in Planetary Scenarios by Y. Zhang, G. Wan, D. Liu, T. Tao, C. Xiao, C. Xiao, Z. Ye, Z. Ye, X. Tong, X. Tong

    Published 2025-08-01
    “…To address the nonlinear expression problem in multi-source DEMs, we compared the matching results of various multi-modal matching methods on DEMs from Mars and moon, and selected the best one to construct a robust coarse-to-fine PMS-DEM registration method. …”
    Get full text
    Article
  11. 9611

    A Study on Partial Discharge Fault Identification in GIS Based on Swin Transformer-AFPN-LSTM Architecture by Jiawei Li, Shangang Ma, Fubao Jin, Ruiting Zhao, Qiang Zhang, Jiawen Xie

    Published 2025-02-01
    “…Aiming at the problem of manual feature extraction and insufficient mining of feature information for partial discharge pattern recognition under different insulation faults in GIS, a deep learning model based on phase and timing features with Swin Transformer-AFPN-LSTM architecture is proposed. …”
    Get full text
    Article
  12. 9612

    Monitored Reconstruction: Computed Tomography as an Anytime Algorithm by Konstantin Bulatov, Marina Chukalina, Alexey Buzmakov, Dmitry Nikolaev, Vladimir V. Arlazarov

    Published 2020-01-01
    “…We outline the theoretical framework for the monitored reconstruction, propose ways of constructing stopping rules for various reconstruction quality metrics and provide their experimental evaluation. …”
    Get full text
    Article
  13. 9613

    3D Page-Flipped Worksheet on Impulse-Momentum to Develop Students' Scientific Communication Skills by D. Oktasari, J. Jumadi, W. Warsono, M. H. Hariadi, E. L. Syari

    Published 2019-06-01
    “…Students’ developmental skills, including critical thinking skills, problem-solving skills, creativity, metacognitive skills, communication skills-collaboration, digital literacy-technology are integrated into current issues discussed at the 21st-century skills. …”
    Get full text
    Article
  14. 9614

    Research on the optimal operation of a prosumer micro energy network centred on data centres by Yuanshi Zhang, Yiwu Ge, Shunjiang Wang, Weiqi Pan, Yiwen Feng, Peng Qiu

    Published 2024-12-01
    “…Based on this model, a micro‐energy network is constructed that integrates renewable energy access and waste heat recovery from the data centre. …”
    Get full text
    Article
  15. 9615

    Study of antitumor effectiveness of Ras GTPase peptide inhibitor (Inh-Ras) in xenograft model of non-small cell lung cancer by T. M. Kulinich, E. A. Kudinova, A. V. Ivanov, A. M. Shishkin, V. V. Kaminsky, O. B. Knyazeva, I. A. Puchkov, V. K. Bozhenko

    Published 2025-04-01
    “…In recent years, treatment of tumors associated with the RAS oncogene has become an important problem. High level of mutations in this gene is characteristic of tumors of various locations which makes it an attractive target. …”
    Get full text
    Article
  16. 9616

    A one-dimensional spot welding model by K. T. Andrews, L. Guessous, S. Nassar, S. V. Putta, M. Shillor

    Published 2006-01-01
    “…The model consists of the Stefan problem, in enthalpy form, coupled with the equation of charge conservation for the electrical potential. …”
    Get full text
    Article
  17. 9617

    Analysis of the motion of a nanosatellite with an uninsulated conductive tether by T. A. Bystranova, Yu. M. Zabolotnov

    Published 2024-01-01
    “…The task is related to the urgent problem of removing exhausted nanosatellites or small spacecraft from space without using jet engines. …”
    Get full text
    Article
  18. 9618

    Realizing string-net condensation: Fibonacci anyon braiding for universal gates and sampling chromatic polynomials by Zlatko K. Minev, Khadijeh Najafi, Swarnadeep Majumder, Juven Wang, Ady Stern, Eun-Ah Kim, Chao-Ming Jian, Guanyu Zhu

    Published 2025-07-01
    “…We introduce a scalable dynamical string net preparation (DSNP) that constructs Fib SNC and its anyons on reconfigurable graphs suitable for near-term superconducting processors. …”
    Get full text
    Article
  19. 9619

    Research on a New Adaptive Integral Sliding Mode Controller Based on a Small BLDC by Keyou Guo, Min Yang, Xue Li, Peipeng Shi, Pengshuo Wang

    Published 2022-01-01
    “…A new adaptive saturation Integral Sliding Mode Controller (ADSA-ISMC) was presented to solve the speed fluctuation problem caused by a small brushless DC motor (S-BLDC) under variable loads. …”
    Get full text
    Article
  20. 9620

    A method to measure the azimuth of a laser-tracking cooperative target by changing inner laser's direction by Qifan Qiu, Zhi Cheng, Doudou Gao, Yang Li, Dengfeng Dong, Chengjun Cui, Yixuan Han

    Published 2025-04-01
    “…To solve the problem of measuring the azimuth attitude angle of a laser tracking cooperative target at a long distance, a high-precision measurement method based on beam direction is proposed in this paper. …”
    Get full text
    Article