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Showing 52,941 - 52,960 results of 53,535 for search '((structures OR (unstructures OR unstructural)) OR (structured OR structural)) data', query time: 0.61s Refine Results
  1. 52941

    Turbulent Transport Efficiency of Momentum and Sscalar over Forest Canopy in Southern Sichuan by Yi DING, Yu ZHANG, Demin FAN, Youqi SU, Qian ZHANG, Yanqi WANG, Yanqi WANG

    Published 2025-06-01
    “…The turbulent transport characteristics of momentum and scalar over the canopy were studied by using the three levels (20 m, 38 m and 56 m) turbulence data measured at the 60m forest micro meteorological tower in southern Sichuan from May 1 to June 30, 2021.Coherent structure is the main form of turbulent motion, which is composed of updraft (ejection) and downdraft (sweep).In this paper, the quadrant analysis method is used to analyze the boundary of the roughness sublayer, roughness sublayer and constant flux layer above the forest canopy and the ejection-sweep motion characteristics of the constant flux layer, including the difference of ejection and sweep contribution to flux, the difference between momentum and scalar transport, and the difference between different scalar (T, q, CO2) transport.The results show that under unstable and stable conditions, the ejection dominates the scalar transport at all three levels, while the sweep is the main eddy current motion for scalar transport above the roughness sublayer under neutral conditions.For the momentum flux, under unstable conditions, the ejection dominates at all three levels.Under stable conditions, the ejection dominates at the roughness sublayer and the constant flux layer, while at the boundary of the roughness sublayer and the constant flux layer, the effect of the sweep is greater than that of the ejection.Under neutral conditions, the flux contribution of the sweep is greater than that of the ejection except for the roughness sublayer.The third-order cumulant expansion method (CEM) can more accurately express the flux contribution caused by ejection and sweep, while the incomplete cumulant expansion method (ICEM) is poor in simulating the temperature at the boundary of roughness sublayer and constant flux layer.Through the calculation of transmission efficiency, the difference between momentum and scalar transmission is further quantified.The turbulent transfer efficiency of momentum decreases with increasing instability, while the heat transfer efficiency is the opposite.Atmospheric stability is an important factor controlling momentum and scalar transfer, and the transfer efficiency of water vapor is less affected by atmospheric stability.Under the condition of strong instability, the heat transfer efficiency is more effective than other scalar transfer.…”
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  2. 52942

    A Hybrid Deep Learning Framework for Deepfake Detection Using Temporal and Spatial Features by Fazeel Zafar, Talha Ahmed Khan, Salas Akbar, Muhammad Talha Ubaid, Sameena Javaid, Kushsairy Abdul Kadir

    Published 2025-01-01
    “…Our research introduces a model for detecting deepfakes by utilizing an Enhanced EfficientNet B0 structure in conjunction with Temporal Convolutional Neural Networks (TempCNNs). …”
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  3. 52943

    Radiologic assessment of the optimal point for tube thoracostomy using the sternum as a landmark: a computed tomography‐based analysis by Jaeik Jang, Jae-Hyug Woo, Mina Lee, Woo Sung Choi, Yong Su Lim, Jin Seong Cho, Jae Ho Jang, Jea Yeon Choi, Sung Youl Hyun

    Published 2024-03-01
    “…Purpose This study aimed at developing a novel tube thoracostomy technique using the sternum, a fixed anatomical structure, as an indicator to reduce the possibility of incorrect chest tube positioning and complications in patients with chest trauma. …”
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  4. 52944

    Spatio-temporal dynamics of Isoberlinia-dominated woodlands in disturbance-prone landscapes over 15 years by Shègoun Eudes Idjigbèrou, Eméline Sêssi Pélagie Assédé, Séverin Biaou, Gérard Nounagnon Gouwakinnou, Armand Kuyema Natta, Samadori Sorotori Honoré Biaou

    Published 2025-06-01
    “…Productivity and disturbance influence species richness and structure, enhancing our understanding of vegetation dynamics and species coexistence over time. …”
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  5. 52945

    Atrophy of hypothalamic subregions increases migraine risk: cross-sectional study and mendelian randomization analysis by Zhonghua Xiong, Lei Zhao, Geyu Liu, Dong Qiu, Yanliang Mei, Xiaoshuang Li, Zhi Guo, Peng Zhang, Mantian Zhang, Tianshuang Gao, Jinju Sun, Xin Liu, Yonggang Wang

    Published 2025-08-01
    “…Abstract Background The hypothalamus is a versatile structure comprising several nuclei that play key roles in regulating various biological processes associated with migraine, including hormone secretion, metabolism, circadian rhythm, and autonomic nervous system functions. …”
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  6. 52946

    Wetland dynamics in northern Australia’s tropical savanna (1987–2024): a multi-index Google Earth Engine approach for long-term monitoring by Kaline de Mello, Edimilson Rodrigues dos Santos Junior, Erica A. Garcia, Anna E. Richards, Peter Scott Waugh, Jessica Huxley, Simon Linke

    Published 2025-09-01
    “…Wetlands were categorized into twelve classes based on hydrological regime and vegetation structure. Validation showed high accuracy (93 % ± 1 %), with class-level accuracy above 80 % for most wetland types, including water bodies, mangroves, salt flats, swamps, marshes, and floodplains. …”
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  7. 52947
  8. 52948

    Distinct effects of fine and coarse aerosols on microphysical processes of shallow-precipitation systems in summer over southern China by F. Chen, F. Chen, Y. Yang, L. Yu, Y. Li, W. Liu, Y. Liu, Y. Liu, S. Lolli

    Published 2025-02-01
    “…<p>Densely populated southern China, adjacent to the South China Sea, which is associated with shallow precipitation during summer, is an open-air natural laboratory for studying the impact of aerosol particles on shallow-precipitation events. Using 8 years of data from Dual-frequency Precipitation Radar measurements, aerosol reanalysis, and atmospheric reanalysis, this study investigates the potential influence of coarse and fine aerosol particles on the structure of the precipitation and the microphysical processes of shallow precipitation in southern China. …”
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  9. 52949

    Crystallinity integration of anatase (TiO2) nanocrystal by whole powder pattern fitting (WPPF) method: A Rietveld refinement study by Shanawaz Ahmed, Md. Khalid Hossain Shishir, Md. Tarikul Islam, Md. Ashikur Rahaman, Sahil Aman, Allah Rakha Aidid, Sumaiya Islam Sadia, Md. Masud Rana, Md. Ashraful Alam

    Published 2025-06-01
    “…This research advances the understanding of the controlled synthesis of anatase nanoparticles and demonstrates the effectiveness of characterizing their crystalline structure.…”
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  10. 52950

    Real time intravascular ultrasound evaluation and stent selection for cerebral venous sinus stenosis associated with idiopathic intracranial hypertension by Gang Luo, Raynald, Xu Tong, Yinuo Huang, Zifei Han, Dapeng Sun, Bo Wang, Baixue Jia, Zhenbo Shi, Feng Gao, Ning Ma, Zhongrong Miao, Dapeng Mo

    Published 2025-05-01
    “…Idiopathic intracranial hypertension (IIH) patients with CVS stenosis who underwent IVUS-guided stenting were included in the data analysis from January 2014 to February 2022. …”
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  11. 52951

    Human Disc Degeneration Is Accompanied by a Loss of Anterior Annulus Fibrosus Interlamellar Matrix Integrity as Assessed by Peel Tests by Manmeet S. Dhiman, Mohammed A. Salaam, Taylor J. Bader, Fred Nicholls, W. Bradley Jacobs, Kenneth C. Thomas, Jacques Bouchard, Paul T. Salo, David A. Hart, Ganesh Swamy, Neil A. Duncan

    Published 2025-06-01
    “…Future biochemical and immunolocalization studies, integrated with mechanical data, will aim to understand the role of collagen and elastin structure and composition in the decreased mechanical integrity of affected tissues.…”
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  12. 52952

    Genome-wide identification and analysis of SmRR gene family in eggplant (Solanum melongena L.) and their response to abiotic stress and auxin by Wenjing Li, Hui Li, Yanyu Lin, Yutong Li, Xiaofang Xie, Xuefang Zheng, Weiren Wu, Yuanchang Zhou, Yan Zheng

    Published 2025-07-01
    “…Phylogenetic analysis classified all RRs into three categories: type-A, type-B RRs, and PRRs (Pseudo-RRs), while no type-C genes were detected. Gene structure and motif analysis demonstrated similarities within each type. …”
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  13. 52953

    Effective adsorptive removal of triclosan from water using bio-nanocomposite hydrogel beads by Vuyo Moses Mollo, Vuyo Moses Mollo, Mthokozisi Mnguni, Mthokozisi Mnguni, Diseko Boikanyo, Philiswa Nosizo Nomngongo, Philiswa Nosizo Nomngongo, James Ramontja

    Published 2025-04-01
    “…The surface charge, morphology, thermal stability, crystallinity, and functional groups of NaAlg/MnS bio-nanocomposite hydrogel beads were characterised by SEM equipped with EDX, TEM, Thermogravimetric analysis, FTIR, XRD, and zeta sizer (mV).Results and discussionsThe experimental results demonstrated that incorporating 0.02–0.2 g of MnS NPs in the bio-nanocomposite hydrogels led to enhanced mechanical structure, porosity, and swelling ability for the adsorption of triclosan compared to pristine NaAlg hydrogel. …”
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  14. 52954

    Mon R2: A Hub–Filament System with an Infrared Bubble at the Hub Center by L. K. Dewangan, N. K. Bhadari, A. K. Maity, O. R. Jadhav, Saurabh Sharma, A. Haj Ismail

    Published 2025-01-01
    “…A multiwavelength, multiscale study of the Mon R2 hub–filament system (HFS) reveals a spiral structure, with the central hub containing more mass than its filaments. …”
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  15. 52955

    Exploring the interaction effects of subclinical hypothyroidism and major depressive disorder on brain networks by Shuai Zhao, Jindan Wu, Xiaomei Liu, Yishan Du, Xiaoqin Wang, Yi Xia, Hao Sun, Haowen Zou, Xumiao Wang, Zhilu Chen, Rui Yan, Hao Tang, Qing Lu, Zhijian Yao

    Published 2025-03-01
    “…Recent research has indicated that the presence of comorbid SHypo in individuals diagnosed with MDD may result in notable alterations in both brain structure and function. This study aimed was to investigate the neurological mechanisms underlying this co-occurrence using a data-driven approach to analyze brain activity patterns. …”
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  16. 52956

    Occupational health and safety regulations in China: development process, enforcement challenges, and solutions by Xinyu Xu, Xinyu Xu, Xinyu Xu, Peihua Ren, Peihua Ren, Wenyan Shi, Wenyan Shi, Feidan Deng, Feidan Deng, Qingfeng Wang, Qingfeng Wang, Shaoteng Shi, Shaoteng Shi, Jingchun Shen, Jingchun Shen, Guoqiang Dong, Jing Han, Jing Han, Jing Han, Jing Han

    Published 2025-04-01
    “…The search was limited to articles published from 2000 to the present to ensure the inclusion of the most recent studies and regulatory updates.ResultsIt is found that changes in industrial structure have led to significant differences in the production environment and labor practices of different occupations, which in turn have triggered the gradual emergence of various types of occupational diseases. …”
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  17. 52957

    Unveiling the charge density wave mechanism in vanadium-based Bi-layered kagome metals by Yi-Chen Yang, Soohyun Cho, Tong-Rui Li, Xiang-Qi Liu, Zheng-Tai Liu, Zhi-Cheng Jiang, Jian-Yang Ding, Wei Xia, Zi-Cheng Tao, Jia-Yu Liu, Wen-Chuan Jing, Yu Huang, Yu-Ming Shi, Soonsang Huh, Takeshi Kondo, Zhe Sun, Ji-Shan Liu, Mao Ye, Yi-Lin Wang, Yan-Feng Guo, Da-Wei Shen

    Published 2024-09-01
    “…Our finding not only comprehensively maps the electronic structure of V-based bi-layer kagome metals but also provides constructive experimental evidence for the unique origin of CDW in this system.…”
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  18. 52958

    Optimal suturing techniques in patch-bridging reconstruction for massive rotator cuff tears: A finite element analysis by Yuting Zhong, Chengxuan Yu, Sijia Feng, Han Gao, Luyi Sun, Yunxia Li, Shiyi Chen, Jun Chen

    Published 2025-01-01
    “…The ultimate failure load, failure mode, stress distribution of each structure, and other biomechanical results of the different models were calculated and compared. …”
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  19. 52959

    Statistical modeling of the equine third metacarpal bone incorporating morphology and bone mineral density. by Helen Liley, Ju Zhang, Elwyn C Firth, Justin W Fernandez, Thor F Besier

    Published 2018-01-01
    “…The association between form and function builds upon previous two-dimensional observations of MC3 epiphyseal structure. It was expected that the main source of variation would be an increase in overall MC3 bone size, correlated to an increase in subchondral BMD. …”
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  20. 52960