Suggested Topics within your search.
Suggested Topics within your search.
- Biochemistry 2
- Molecular biology 2
- Anesthesia 1
- Critical Care 1
- Evaluation research (Social action programs) 1
- Evidence-based social work 1
- Grammar, Comparative and general 1
- Internet marketing 1
- LANGUAGE ARTS & DISCIPLINES / General 1
- LANGUAGE ARTS & DISCIPLINES / Linguistics / General 1
- LANGUAGE ARTS & DISCIPLINES / Linguistics / Syntax 1
- Mathematical Concepts 1
- Physical Phenomena 1
- Research 1
- Social service 1
- Syntax 1
Search alternatives:
structures » structure (Expand Search)
unstructures » unstructure (Expand Search), structure (Expand Search)
unstructural » unstructure (Expand Search)
structural » structure (Expand Search)
structured » structure (Expand Search)
structures » structure (Expand Search)
unstructures » unstructure (Expand Search), structure (Expand Search)
unstructural » unstructure (Expand Search)
structural » structure (Expand Search)
structured » structure (Expand Search)
-
52941
Turbulent Transport Efficiency of Momentum and Sscalar over Forest Canopy in Southern Sichuan
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.…”
Get full text
Article -
52942
A Hybrid Deep Learning Framework for Deepfake Detection Using Temporal and Spatial Features
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). …”
Get full text
Article -
52943
Radiologic assessment of the optimal point for tube thoracostomy using the sternum as a landmark: a computed tomography‐based analysis
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. …”
Get full text
Article -
52944
Spatio-temporal dynamics of Isoberlinia-dominated woodlands in disturbance-prone landscapes over 15 years
Published 2025-06-01“…Productivity and disturbance influence species richness and structure, enhancing our understanding of vegetation dynamics and species coexistence over time. …”
Get full text
Article -
52945
Atrophy of hypothalamic subregions increases migraine risk: cross-sectional study and mendelian randomization analysis
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. …”
Get full text
Article -
52946
Wetland dynamics in northern Australia’s tropical savanna (1987–2024): a multi-index Google Earth Engine approach for long-term monitoring
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. …”
Get full text
Article -
52947
The multicenter observational non-interventional study of combination anti-tuberculosis drugs used in treatment of pulmonary tuberculosis patients
Published 2020-09-01“…Descriptive statistics methods were used for statistical data processing.Results. Of all PP, 267 (54.6%) completed the main course of chemotherapy. …”
Get full text
Article -
52948
Distinct effects of fine and coarse aerosols on microphysical processes of shallow-precipitation systems in summer over southern China
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. …”
Get full text
Article -
52949
Crystallinity integration of anatase (TiO2) nanocrystal by whole powder pattern fitting (WPPF) method: A Rietveld refinement study
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.…”
Get full text
Article -
52950
Real time intravascular ultrasound evaluation and stent selection for cerebral venous sinus stenosis associated with idiopathic intracranial hypertension
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. …”
Get full text
Article -
52951
Human Disc Degeneration Is Accompanied by a Loss of Anterior Annulus Fibrosus Interlamellar Matrix Integrity as Assessed by Peel Tests
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.…”
Get full text
Article -
52952
Genome-wide identification and analysis of SmRR gene family in eggplant (Solanum melongena L.) and their response to abiotic stress and auxin
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. …”
Get full text
Article -
52953
Effective adsorptive removal of triclosan from water using bio-nanocomposite hydrogel beads
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. …”
Get full text
Article -
52954
Mon R2: A Hub–Filament System with an Infrared Bubble at the Hub Center
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. …”
Get full text
Article -
52955
Exploring the interaction effects of subclinical hypothyroidism and major depressive disorder on brain networks
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. …”
Get full text
Article -
52956
Occupational health and safety regulations in China: development process, enforcement challenges, and solutions
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. …”
Get full text
Article -
52957
Unveiling the charge density wave mechanism in vanadium-based Bi-layered kagome metals
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.…”
Get full text
Article -
52958
Optimal suturing techniques in patch-bridging reconstruction for massive rotator cuff tears: A finite element analysis
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. …”
Get full text
Article -
52959
Statistical modeling of the equine third metacarpal bone incorporating morphology and bone mineral density.
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. …”
Get full text
Article -
52960
Clarin‐2 is essential for hearing by maintaining stereocilia integrity and function
Published 2019-08-01“…Our knowledge of the mechanisms underlying the formation and maintenance of the sound‐receptive structure is limited. Utilizing a large‐scale forward genetic screen in mice, genome mapping and gene complementation tests, we identified Clrn2 as a new deafness gene. …”
Get full text
Article