Showing 481 - 500 results of 4,802 for search 'complex have problems', query time: 0.21s Refine Results
  1. 481

    Recurrent vulvar carcinoma: complex surgical treatment via perineal excision and reconstruction with musculocutaneous flap by Dragoș Popa, Cosmin V. Obleagă, Ștefan Paitici, Stelian Ș. Mogoanta, Ionică D. Vîlcea, Pouya Pourgolafshan, Cristian Gheorghe, Manuela I. Vasile, Raluca Câmpeanu, Cecil S. Mirea

    Published 2018-04-01
    “…The patient later developed local recurrence with invasion of the anal sphincter, creating a delicate problem regarding a surgical approach. The size and the extent of the recurrent tumor required a complex surgical intervention using a mixed surgical team of general surgeons and plastic surgeons. …”
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    Article
  2. 482

    Synthesis of a Generalized Algorithm for Processing and Generating Data on Reflected Signals from Complex Targets by Xung Ha Vo, Trung Kien Nguyen, Phung Bao Nguyen, Quang Hieu Dang

    Published 2023-03-01
    “…However, in such a case, radar targets acquire the characteristics of complex targets having several marks at the output of the detector. …”
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    Article
  3. 483

    ORGANIZING, STRUCTURING AND UNIFICATION OF CREDIT RISK ESTIMATE PROBLEMS WITHINTHE COMMERCIAL LENDING OF AGRICULTURAL ENTERPRISES by Zotov V.P., Chernichenko S.G., Chernysheva N.M.

    Published 2016-11-01
    “…The key position within the risk system belongs to the credit risk having a complex nature, a wide range of effects, manifested in various forms of credit relations, acting as an autonomous object of research, and one of the structural elements of the situation of uncertainty. …”
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    Article
  4. 484

    Documents on History of Russian Naval Emigration in Regional Archives of Southern France: Problems of Search and Study by M. M. Rudkovskaya

    Published 2021-12-01
    “…The author’s classification of the identified documentary complexes is proposed.…”
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    Article
  5. 485

    An Improved Large Neighborhood Search Algorithm for the Comprehensive Container Drayage Problem with Diverse Transport Requests by Xuhui Yu, Cong He

    Published 2025-05-01
    “…Given the problem’s complexity, obtaining an exact solution for large instances is not feasible. …”
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    Article
  6. 486

    A Biased–Randomized Iterated Local Search with Round-Robin for the Periodic Vehicle Routing Problem by Juan F. Gomez, Antonio R. Uguina, Javier Panadero, Angel A. Juan

    Published 2025-08-01
    “…The periodic vehicle routing problem (PVRP) is a well-known challenge in real-life logistics, requiring the planning of vehicle routes over multiple days while enforcing visitation frequency constraints. …”
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    Article
  7. 487

    Active Traffic Sensor Location Problem for the Uniqueness of Path Flow Identification in Large-Scale Networks by Ahmed Almutairi, Mahmoud Owais

    Published 2024-01-01
    “…The solution strategy ensures the uniqueness of path flow identification. The problem’s complexity has two main dimensions: its mathematical formulation, which is known to be NP-hard, and the inherent combinatorial complexity resulting from the need for complete network path enumeration. …”
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    Article
  8. 488

    Reference Point and Grid Method-Based Evolutionary Algorithm with Entropy for Many-Objective Optimization Problems by Qi Leng, Bo Shan, Chong Zhou

    Published 2025-05-01
    “…As the count of objective functions rises to four or beyond, the problem’s complexity intensifies considerably, often making it challenging for traditional algorithms to arrive at satisfactory solutions. …”
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    Article
  9. 489

    Dermatomyositis: difficuities of diagnostic search by M. M. Tlish, Zh. Yu. Naatyzh, T. G. Kuznetsova

    Published 2023-07-01
    “…Among hereditary markers of dermatomyositis, changes in the major histocompatibility complex, as well as in genes encoding cytokines, have been described. …”
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    Article
  10. 490
  11. 491

    A Cost-Benefit Analysis of Capacitor Allocation Problem in Radial Distribution Networks Using an Improved Stochastic Fractal Search Algorithm by Phuoc Tri Nguyen, Thi Nguyen Anh, Dieu Vo Ngoc, Tung Le Thanh

    Published 2020-01-01
    “…For clarifying the effectiveness and validation of the ISFS, the simulated results have been compared with those of other previously utilized solution approaches in the literature as well as the original SFS. …”
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  12. 492
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  15. 495

    Improving the Parameterization of Complex Subsurface Flow Properties With Style‐Based Generative Adversarial Network (StyleGAN) by Wei Ling, Behnam Jafarpour

    Published 2024-11-01
    “…Conventional parameterization methods that rely on linear/Gaussian assumptions are not suitable for representation of property maps with more complex spatial patterns. Deep learning techniques, such as Variational Autoencoders (VAE) and Generative Adversarial Networks (GAN), have recently been proposed to address this difficulty by learning complex spatial patterns from prior training images and synthesizing similar realizations using low‐dimensional latent variables with Gaussian distributions. …”
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  16. 496
  17. 497

    Low-light image enhancement method based on retinex theory and dual-tree complex wavelet transform by Yuqian Zhang, Jie Jiang, Zhan Wang, Qi Zhang, Yudi Jiang, Jun Liu, Zeyao Hou

    Published 2025-06-01
    “…These issues not only impair human visual perception but also pose significant challenges for computer vision tasks. To address these problems, various Low-light Image Enhancement (LIE) algorithms have been developed in recent years, including histogram-based methods, gamma correction, and approaches based on Retinex theory. …”
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    Article
  18. 498

    Calculation of the Capacity for the Operation of a Mini-Energy Complex Based on an Inde-pendently Operating Asynchronous Generator by S. V. Konstantinova, A. Yu. Kapustinskii, T. M. Yaroshevich

    Published 2021-02-01
    “…The article present the analysis of the operation of the mini-energy complex (MEC) based on alternative energy sources. …”
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  19. 499

    The Youth Risk Index: psychometrics, predicting the initiation of early adolescent substance use, and the breadth of liability detected by Ty A. Ridenour, Ty A. Ridenour, Ty A. Ridenour, Nisha O'Shea Gottfredson, Jason Williams, Daniel S. Shaw, Maureen D. Reynolds, Cheryl A. Roberts, Richard Spoth, David R. Garnica-Agudelo, Idil Baran, Aysenil Belger, Diana H. Fishbein

    Published 2025-06-01
    “…YRI scores correlated less with parent reports on youths than with youth self-reports.DiscussionIn sum, YRI scores encapsulate many segments of risk for SU/SUD and related behavior problems, which is critical to accurately identify the need for and provision of selective/indicated prevention because of the manifold risk factors for, and complex etiology of, SU/SUD.…”
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  20. 500

    A Multiscale Convolution SAR Image Target Recognition Method Based on Complex-Valued Neural Networks by Guangyu Hou, Zhihui Xin, Guisheng Liao, Penghui Huang, Yuhao Huang, Rui Zou

    Published 2025-01-01
    “…To tackle these problems, this article introduces a SAR target recognition approach based on complex-valued operations, designated as complex-valued residual mish activation and convolution block attention module (CBAM) net (CRMC-Net). …”
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