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4521
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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4522
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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4523
Stress corrosion behavior and mechanism of cable bolts under the influence of mine water
Published 2025-07-01“…The influence of SO42− and Cl− concentrations in mine water on cable bolt corrosion follows a similar pattern: as the ion concentrations increase, the corrosion rate gradually increases, facilitating SCC crack initiation. …”
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4524
Numerical study on the mechanism of shear performance degradation of thawing glacial debris
Published 2025-04-01“…When the thawing rate is less than or equal to 2%, the failure mode exhibits a rough “serrated” pattern; as the thawing rate increases (> 2%), the shear surface gradually transitions to a smoother “circular arc” shape. …”
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4525
The effect of four weeks of polarized training on aerobic fitness and performance of professional rowers
Published 2022-08-01“…It seems that the polarization intensity distribution pattern can be a more effective method than traditional exercises in developing the aerobic performance characteristics of rowing athletes.…”
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4526
Mapping the primary factors driving spatiotemporal variations of surface soil moisture in the Yellow River Basin of China
Published 2025-04-01“…Temporally, surface soil moisture in the Yellow River Basin showed a noteworthy upward trend from 2003 to 2018, with an average change rate of 0.00066 m3/m3 year−1 over the past 16 years. …”
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4527
A comparison of the treatment outcome of Asherman's syndrome which developed within and outside the puerperal period: A matched cohort study
Published 2025-04-01“…The secondary outcome measure was the change in menstrual pattern at 3 months after surgery. The adhesion reformation rate in puerperal group was 86.3%, which was significantly (p < 0.05) higher than that of 38.6% in the non‐puerperal (non‐puerperal) group. …”
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4528
A Scheduling Model in Capturing Methane Gas from Methane Clathrates Deposits
Published 2023-06-01“…If the daily production rate increases, the cash flow and payback time will decrease. …”
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4529
Artificial Ventilation-Induced Acute Lung Lesion: Experimental, Morphological Study
Published 2006-08-01“…Objective: to elucidate the pattern of morphological changes in the lung during artificial ventilation.Materials and methods. …”
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4530
Survival prognostic factors and molecular aspects in extremity soft tissue sarcoma
Published 2024-10-01“…Significant prognostic factors for the likelihood of a lower survival and death rate are tumor size, tumor depth, histology type, and vascular invasion. …”
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4531
Application of Image Processing Technology in the Diagnosis of Football Injury
Published 2022-01-01“…Among them, the sensitivity of pattern recognition based on image processing can reach 68.9%, and the detection rate of football injuries can also be maintained at about 81.2%. …”
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4532
A Novel Support Vector Machine with Globality-Locality Preserving
Published 2014-01-01“…Support vector machine (SVM) is regarded as a powerful method for pattern classification. However, the solution of the primal optimal model of SVM is susceptible for class distribution and may result in a nonrobust solution. …”
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4533
Research on Strata Movement Control in Deep Composite Lithologic Gangue Backfill Mining of Super-Thick and Weak Cementation Overburden Based on PFC–FLAC Coupling Simulation
Published 2025-01-01“…In addition, after calculation, the secondary compression rate of the composite rock gangue reaches 7% to 8%, ultimately leading to a secondary surface subsidence rate of 19%. …”
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4534
Vegetation variations and driving mechanisms in northern China based on kNDVI
Published 2025-08-01“…Vegetation cover in northern China exhibits a fluctuating upward trend, with the northern Loess Plateau showing the highest rate of increase at 0.0032 per year and Southern Xinjiang and the Hexi Corridor showing the lowest rate of increase at 0.0003 per year. …”
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4535
Statistical and numerical investigation of irreversibility for time-dependent Casson-Carreau nanofluid flow driven by curved surface: Regression analysis
Published 2025-09-01“…Identifying the parameters that optimize the heat transfer rate and using those parameters applying the appropriate statistical tool to optimize the heat transfer rate are the two motives behind this study. …”
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4536
Legume-Cereal Intercropping Improves Forage Yield, Quality and Degradability.
Published 2015-01-01“…Intercropping legume with cereal is an extensively applied planting pattern in crop cultivation. However, forage potential and the degradability of harvested mixtures from intercropping system remain unclear. …”
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4537
Modeling of digital spatial processing under conditions of troposphere propagation of centimeter radio waves for wireless telecommunication
Published 2025-02-01“…The best geometry for this purpose is circular, since providing the lowest bit error rate for binary phase-shift keyed signals.…”
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4538
Long-term effect of pegylated liposomal doxorubicin in recurrent platinum-resistant ovarian cancer: а clinical case
Published 2015-11-01“…Chemotherapy is a main treatment for recurrent OC. In Russia, the rate of platinum-resistant recurrences after first-line chemotherapy is more than 50 %, which may be due to the high extent of a tumor process at the moment of diagnosis, to the low rate of optimal cytoreductive interventions, and to non-optimal treatment. …”
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4539
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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4540
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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