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3361
Multi-scenario Dynamic Simulation and Optimization of Urban Ventilation Environment: A Case Study of Taiyuan Metropolitan Area
Published 2025-05-01“…Although many international scholars have researched the optimization of urban ventilation, the existing research in China mainly focuses on the measurement of the current urban ventilation environment, while neglecting the long-term dynamic changes of the urban ventilation environment in response to different planning objectives in the process of urban development.MethodsThis research proposes a research framework generally applicable to the simulation of future changes in ventilation environment within city – region systems for the first time. …”
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3362
Advances and applications of empirical mode decomposition and its variants in hydrology: A review
Published 2025-02-01“…We provide a comprehensive overview of the fundamental theory, methodological characteristics, and current challenges of EMD, covering five EMD-based methods: Hilbert-Huang Transform (HHT), Ensemble Empirical Mode Decomposition (EEMD), Multivariate Empirical Mode Decomposition (MEMD), Extreme Point Symmetric Mode Decomposition (ESMD), and Variational Mode Decomposition (VMD). …”
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3363
Influence of Peptide Conjugation Sites on Lunatin–Alumina Nanoparticles: Implications for Membrane Interaction and Antimicrobial Activity
Published 2025-06-01“…N-terminal) affects membrane interactions and antibacterial activity. <b>Methods</b>: NP–peptide conjugates were synthesized via covalent bonding between lun-1 and alumina NP and characterized using transmission electron microscopy (TEM), X-ray diffraction (XRD), zeta potential analysis, dynamic light scattering (DLS), Fourier-transform infrared (FTIR), and solid-state <sup>13</sup>C NMR. …”
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3364
Study on infrasonic leakage monitoring and signal processing for product oil pipeline
Published 2024-08-01“…Furthermore, the experimental data were processed and classified, utilizing the method based on Wavelet Transform-Random Forest (WT-RF). …”
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3365
Enhancing the Drug Release and Physicochemical Properties of Rivaroxaban via Cyclodextrin Complexation: A Comprehensive Analytical Approach
Published 2025-05-01“…<b>Methods</b>: The physicochemical properties of the individual compounds and the three lyophilized complexes were analysed using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), and thermogravimetric analysis (TGA). …”
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3366
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3367
Minimal repeats are ubiquitous sites of crossover and recombination across the human genome
Published 2025-05-01“…Abstract Background Crossover and recombination create genetic diversity that reflects differences in the DNA sequences of different organisms. …”
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3368
Structural insights and biomedical potential of biosynthesized silver nanoparticles: antibacterial activity, anti-biofilm and cancer cell inhibition
Published 2025-07-01“…Objective This study aimed to synthesize, characterize, and evaluate the antimicrobial, anti-biofilm, and anticancer properties of AgNPs derived from Teucrium polium (Tp), Teucrium marum (Tm), and Punica granatum (Pg). Methods AgNPs were synthesized using plant extracts and characterized by X-ray diffraction (XRD), dynamic light scattering (DLS), UV spectroscopy, and Fourier-transform infrared spectroscopy (FTIR). …”
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3369
Antioxidant activities of sea buckthorn polysaccharides and their potential application in cosmetic industry
Published 2024-09-01“…Then, we used the anion exchange method to separate and purify it to get three different polysaccharides: SPA (polysaccharide eluted from deionized water), which is a neutral polysaccharide, and SPB (polysaccharides eluted from 0.1 M NaCl) and SPC (polysaccharide eluted from 0.2 M NaCl), which are acidic polysaccharides. …”
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3370
Recognition of Sheep Feeding Behavior in Sheepfolds Using Fusion Spectrogram Depth Features and Acoustic Features
Published 2024-11-01“…We conducted the task of collecting sound data in actual production environments, considering noise and complex surroundings. The method included evaluating and filtering the optimal acoustic features, utilizing a customized convolutional neural network (SheepVGG-Lite) to extract Short-Time Fourier Transform (STFT) spectrograms and Constant Q Transform (CQT) spectrograms’ deep features, employing cross-spectrogram feature fusion and assessing classification performance through a support vector machine (SVM). …”
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3371
Research on Data Repair of Pile-Type Adjustable Wind Turbine Foundation Monitoring Based on FST-ATTNet
Published 2025-01-01“…In the frequency domain, the model employs discrete cosine transform (DCT) to extract periodic and global patterns from time series data, effectively mitigating the high-frequency noise caused by the Gibbs phenomenon in traditional discrete Fourier transform (DFT). …”
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3372
Adaptive Deeping Siamese Residual Network: A Novel Model for Few-Shot Bearing Fault Diagnosis
Published 2025-02-01“…Frequency-domain information is extracted using the Fourier Transform, and training samples are randomly paired according to the matching criteria defined by the Siamese network to augment the dataset. …”
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3373
Health Monitoring of Carbon Fiber Reinforced Building Materials Based on Phase Unwrapping Algorithm
Published 2025-01-01“…The experimental results showed that the hybrid algorithm had higher computational accuracy and smaller errors compared with the discrete cosine transform algorithm, fast Fourier transform algorithm, and quality map guided method. …”
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3374
Legal Frontier in the Regulation of Cross-Border Public Relations
Published 2023-10-01“…The study relies on the general scientific and special methods as its methodological foundation.RESEARCH RESULTS. …”
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3375
MOTHERHOOD AS A HISTORICAL PHENOMENON IN THE CONTEXT OF THE NORTH CAUCASUS: METHODOLOGICAL ASPECT
Published 2021-09-01“…The article is an attempt to apply psycho-historical method and an interdisciplinary approach to analysis of the practices of perception and regulation of motherhood in different ethnic and religious communities of the North Caucasus. …”
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3376
Release of cetyl pyridinium chloride from fatty acid chelate temporary dental cement
Published 2016-12-01“…Potential interactions between Cavex and CPC were examined by Fourier transform infrared spectroscopy (FTIR) and antimicrobial effects were determined using zone of inhibition measurements after 24 h with disc-shaped specimens in cultured Streptococcus mutans. …”
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3377
Study on the Aging Behavior of Two Acrylic Polyurethane Coatings under High and Low Temperature UV- Artificial Accelerated Aging Tests
Published 2024-12-01“…In order to investigate the aging behavior of acrylic polyurethane coatings in environments with high ultraviolet radiation intensity and large temperature differences, the aging processes of water-based and solvent-based acrylic polyurethane coatings were studied using UV-high and low-temperature artificial accelerated aging methods.Techniques such as super depth-of-field imaging, attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) and energy-dispersive spectroscopy (EDS) were employed to analyze the changes in microscopic morphology, molecular structure and elemental atomic fraction on the surfaces of the coatings.The performance changes and aging patterns of solvent-based and water-based coatings during the aging process were examined through electrochemical impedance spectroscopy (EIS), water contact angle measurements, adhesion strength tests and glossiness assessments.Results showed that the water-based acrylic polyurethane coating system exhibited cracking, whereas the solvent-based coating system exhibited layering.Both coatings experienced significant reductions in glossiness, water contact angle and adhesion strength.The aging rate of the two coating systems initially increased rapidly and then slowed down, with an early appearance of the rate transition inflection point.Infrared spectroscopy analysis indicated that both coatings shared similar aging mechanisms, while EDS analysis demonstrated a faster aging rate for the water-based coating.Additionally, the weight of each performance index was calculated by entropy method, and the comprehensive aging grade under the test was obtained, which verified that the solventbased acrylic polyurethane coating system had relatively good weather resistance.…”
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3378
Passing plastic: traces of plastic in the fecal samples of a high Arctic seabird in Tunu (East Greenland)
Published 2025-01-01“…We identified 25 potential microplastic particles (>100 µm in size), 19 of which were analyzed for material composition using Fourier Transform Infrared Spectroscopy and Raman micro-spectroscopy. …”
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3379
Revisiting Diagnostic Criteria for Bilateral Vestibulopathy: A New Comprehensive Instrumental Model
Published 2024-11-01“…This study aims to evaluate vestibular functions in people with chronic vestibular syndrome through a comprehensive battery of tests. <b>Methods:</b> This diagnostic accuracy study included patients who met criteria for probable BVP. …”
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3380
What evidence exists on the interlinkages between ecological and societal impacts of borealisation of the arctic? A systematic map protocol
Published 2025-08-01“…Borealisation occurs when the species, communities and ecological processes of the Arctic transform to resemble that of more boreal lower latitudes. …”
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