Suggested Topics within your search.
Suggested Topics within your search.
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5621
Research on Combustion State System Diagnosis Based on Voiceprint Technology
Published 2025-05-01“…The BP neural network has a slower convergence speed and a high error rate in recognizing the flameback and thermoacoustic oscillations. …”
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5622
Temporal and Spatial Dynamics of Surface Water Temperature Changes in China's Major Lakes
Published 2025-07-01“…Particularly, when analyzing the spatial pattern based on China's famous population‐economic demarcation line (the Hu Huanyong Line), we found that the LSWT growth rate in lakes east of the Hu Huanyong Line is higher than that in lakes to the west in Phase II, as well as under the SSP1‐RCP2.6 and SSP2‐RCP4.5 scenario models. …”
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5623
Effect of engine failure on aerodynamic characteristics of a light transport aircraft model
Published 2022-09-01“…The aircraft aerodynamic configuration is made according to the classic pattern with the high-mounted tapered wing and deck-type empennage. …”
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5624
The impact of spatial placement on valence judgments of images: a comparative analysis between right-handed and left-handed individuals
Published 2024-12-01“…Thirty participants (15 right-handed, 15 left-handed) rated neutral images displayed in the center, right, or left visual field using a 9-point Likert scale. …”
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5625
A Rectangular Spiral Inward–Outward Alternating-Flow Polymer Thermal Collector for a Solar Water Heating System—A Preliminary Investigation in the Climate of Seri Iskandar, Malaysi...
Published 2024-11-01“…The performance of this polymer SWH system was measured based on inlet and outlet water temperature, water flow rate, ambient air temperature and solar irradiance. …”
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5626
Large-scale genome-wide association studies and meta-analyses of longitudinal change in adult lung function.
Published 2014-01-01“…As a secondary aim, we estimated the mean rate of decline in FEV1 by smoking pattern, irrespective of genotypes, across these 14 studies using meta-analysis.…”
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5627
Evaluation of the implementation of the EWARS Mobile epidemiological surveillance tool in Sudanese refugee camps in Eastern Chad: a retrospective and population-based surveillance...
Published 2025-07-01“…Case reporting, alert recording, and weekly reporting were completed successfully at all levels (camps, district, zone, and province) (≥80% completion rate). In contrast, the timeliness of alert reporting, weekly reporting, and probable outbreaks did not perform well across levels (≥80% timeliness rate). …”
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5628
Analytical research of the relation between hydraulic mechanism of the axial pressure of the drilling rig and technological parameters of the drilling regimes of the geological exp...
Published 2015-12-01“…Because of this, we can not exactly evaluate variations of the axial load on the cutting tools when changing hydraulic parameters of the thrust mechanism. The flow pattern of the hydraulic fluid through the throttling valve and through the pressure shift is defined by the mechanical speed rate of the bore drilling. …”
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5629
Wastewater treatment study using multi-soil-layering system
Published 2011-07-01“…It is composed of soil mixture block layers arranged in a brick-like pattern and water-permeable layer. It has many advantages compared with other land treatment systems, such as preventing clogging, increasing hydraulic loading rate, enhancing the purification ability of soil, et al. …”
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5630
The Voltage-Ear – An Anomaly in Photovoltaic Systems With Undersized Inverters
Published 2024-01-01“…This park featured a high rate of inverter malfunctions, including overheating and fires, resulting in an estimated 5% failure rate and, ultimately, in a complete replacement of inverters. …”
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5631
Use of light response curve parameters to estimate gross primary production capacity from chlorophyll indices of global observation satellite and flux data
Published 2024-12-01“…The photosynthetic rate has a nonlinear relationship with PAR during the day. …”
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5632
Quality of Wild Passion Fruit at Different Ripening Stages Under Irrigated and Rainfed Cultivation Systems
Published 2025-07-01“…Additionally, the rainfed cultivation reduced the fruit color index by 14.82% and altered the respiratory pattern, causing a linear decrease of 73.37% in the respiration rate during ripening, in contrast to the behavior observed in the irrigated system, which reached an estimated minimum rate of 33.74 mg CO<sub>2</sub> kg<sup>−1</sup> h<sup>−1</sup> at 110 days after anthesis.…”
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5633
Effect of rapid heat treatment on mechanical properties and precipitation behavior of medium carbon low alloy steel
Published 2025-03-01“…Kinetic calculations demonstrated that rapid heating can effectively increase the nucleation rate. By employing a rapid heating rate and short holding time, the occurrence of tempering brittleness is effectively avoided. …”
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5634
Renal hyperfiltration as risk factor of major adverse cardiovascular events in patients with acute myocardial infarction
Published 2025-07-01“…A total of 9561 AMI patients with estimated glomerular filtration rate (eGFR) ≥ 60 mL/min/1.73 m2 were enrolled from a large nationwide cohort. …”
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5635
Crystal Form Investigation and Morphology Control of Salbutamol Sulfate via Spherulitic Growth
Published 2025-07-01“…In addition, the effects of crystallization temperature, solute concentration, ratio of antisolvent to solvent, feeding rate, and stirring rate on the morphology of spherical particles were investigated in different antisolvents. …”
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5636
Formation of Functional Silicon Nitride Layers by Selective Plasmochemical Etching
Published 2022-03-01“…At present, with the development of nanotechnology, plasma-chemical etching remains practically the only tool for transferring an integrated circuit pattern in a masking layer to a substrate material due to the fact that the pattern transfer accuracy is comparable to the size of etching gas ions. …”
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5637
Epidemiological characteristics and influencing factors of the cluster outbreaks of influenza-like illness in Yangpu District, Shanghai, 2012‒2022
Published 2025-04-01“…ObjectiveTo analyze the epidemiological characteristics and influencing factors of clustered influenza-like illness (ILI) outbreaks in Yangpu District, Shanghai from 2012 to 2022, and to provide a scientific basis for formulating specific prevention and control measures of influenza in this district.MethodsData on clustered ILI outbreaks from 2012 to 2022 were collected, and the epidemiological pattern of the cluster outbreaks of influenza and its influencing factors of prevalence and duration were explored using statistical methods such as descriptive epidemiology, χ² test and logistic regression analysis.ResultsA total of 60 clustered ILI outbreaks were reported in Yangpu District, Shanghai from 2012 to 2022, with a cumulative number of 543 cases and an annual average incidence rate of 16.96%. …”
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5638
Non-uniform temperature fields and debonding of a long-span CFST arch bridge under coupled environmental actions
Published 2025-12-01“…Experimental and theoretical analyses yielded several significant findings: (1) During the hydration exothermic phase, the temperature field at concrete center exhibited a tri-linear distribution pattern (characterized by rapid initial rise, subsequent decline, and final stabilization), with the ascending rate significantly exceeding the descending rate; temperatures exceeded 50°C between 25 and 73 h post-placement. (2) The external steel tube temperature demonstrated sinusoidal diurnal variations during and post-hydration, closely correlating with ambient temperature fluctuations; after hydration, concrete temperatures also followed sinusoidal diurnal distributions, with amplitudes increasing proportionally to radial distance from the center. (3) A pronounced radial temperature gradient from center to surface manifested during hydration, reaching a maximum differential of 40°C; the temperature gradients substantially decreased to 7°C after hydration. (4) Longitudinal stress differentials between the interface steel tube and concrete measured 42.5 MPa (sun-exposed side) and 74.2 MPa (shadowed side), while radial stress differentials were −1.37 MPa and −0.34 MPa, respectively. (5) The temperature field model demonstrated a tri-linear distribution pattern with an effective influence depth of D/8 to D/4 (where D represents steel tube diameter); the temperature constant exhibited significant temporal dependency on environmental conditions and hydration heat evolution. (6) Although longitudinal relative slip occurred at the steel-concrete interface during placement, no void was detected.…”
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5639
Migration of Impurities in the Structure of Graphene
Published 2012-10-01“…It is determined that the general pattern of transfer quality coincides with the law of particle diffuse propagation and rate of process propagation in the graphene structure exceeds the analogous value for the comparable two-dimensional square array. …”
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5640
Nosological aspects of hepatomegaly and splenomegaly at pediatric age
Published 2016-08-01“…To estimate frequency of hepatomegaly and splenomegaly in pediatric patients, to determine their causes and nosological pattern of hepatolienal syndrome (HLS) in relation to age. …”
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