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461
Spatial pattern of Trees in the Riparian Forests (Case Study: Wildlife Refuge of Karkhe)
Published 2017-02-01“…So, classical statistical parameters, i.e. mean, standard deviation, coefficient of variation, minimum and maximum, were calculated using SPSS17 software. …”
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462
Study on the evolution of the spatial patterns and driving factors of national agricultural cultural heritage in China.
Published 2025-01-01“…During the study period, the X axis of the standard deviation ellipse was always greater than the Y axis, but the difference between the X and Y axes was small, indicating that the spatial distribution direction was northeast-southwest, but the directionality was weak. …”
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463
Analysis on the Error Correction Method of 2m Temperature Hourly Forecast Based on CMA-GD Model
Published 2025-06-01“…The most significant meteorological component is temperature, and weather forecasting relies heavily on how accurately temperatures are predicted.This study uses a linear non-graded regression method to rectify the inaccuracies in temperature forecasts induced by terrain variation in the 2 m temperature hourly forecast product of the mesoscale numerical model (China Meteorological Administration Guangdong, CMA-GD), and use the one-dimensional Kalman filtering method and the double-weighted moving average method to correct the results.The accuracy of the hourly distribution exhibits a diurnal variation feature, and the model terrain height deviation is linearly negatively connected with the temperature error mean value, according to the results.The daytime correction impact is superior than the nighttime correction effect following the ungraded regression method.recorrecting using the best time frame for mathematical correction techniques (15 days for the Kalman method and 20 days for the mean method).It is discovered that the mean method's re-correction effect outperforms the Kalman methods, and that the correction effect is more pronounced during the day than at night.Summer and autumn have a better re-correction impact than winter and spring, with some negative correction effects in spring and little difference between the two techniques in the latter.In the former, the mean value method outperforms the Kalman method.There are eight stations with negative correction following the ungraded regression method, but no negative correction stations follow the mathematical correction methods.Therefore the northern region typically experiences a better corrective impact than the southern region.The fraction of correction magnitude for both MAE and ACC is positively correlated with a binomial connection.The terrain deviation correction method has the least slope and restricted correction effect, while the mean value approach has the best correlation and largest slope.An error assessment was conducted in the middle part of Poyang Lake Plain and the south Zhejiang-Fujian hilly region.The peak error value in the former was lower than that in the latter, and the correction amplitude at the peak was smaller.After correction, the MAE decreased by 25.1% and 19.8%, respectively.From November 2022 to January 2023, during frequent cold air intrusions, the MAE in the middle part of the Poyang Lake Plain decreased by 13.5%.With corrected forecast errors oscillating around the zero axis and a noticeable improvement in systematic positive errors, the model significantly overestimates the temperature forecast for high mountain areas.The temperature forecast errors oscillate with the smallest amplitude from August to October and the largest amplitude in spring and winter.Taking the warming process (May 1-6, 2022) and the strong cooling process (November 28-December 3, 2022) as examples, the corrected MAE decreased by 18.2% and 16.0%, respectively, indicating that the method has achieved stable correction effects during transitional weather.This composite method has good stability, strong forecast correction ability, easy to promote.…”
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464
Perioperative Changes in Serum Concentration of Glial Fibrillar Acid Protein and Delayed Cognitive Recovery: an Experimental Observational Study
Published 2022-10-01“…In the remaining 25 (83.4%) patients, changes in the composite z-score were less than one standard deviation. …”
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465
Feynman calculus for random operator-valued functions and their applications
Published 2018-06-01“…The estimates of the deviation of compositions of the independent identically distributed random semigroup from its mean value have been obtained as the large numbers law for the sequence of compositions of the independent random semigroup has been investigated. …”
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466
The GRAAL2 glass alteration model: initial qualification on a simple chemical system
Published 2025-04-01“…The model is applied to alteration experiments on simple glass CJ2 at 90 °C, pH 9, and different surface-to-volume ratios and solutions compositions (pure water and solutions spiked with Si or Na).…”
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467
An inter-hospital performance assessment model for evaluating hospitals performing hip arthroplasty
Published 2024-12-01“…The mean (standard deviation) number of DALYs per stay was estimated to be more than 0.0028 (0.016) for a mean (standard deviation) cost of €4,834 (€3,665). …”
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468
Racial and Ethnic Representation in Literature Taught in US High Schools
Published 2025-03-01“…Our annotations and measurements show that the sociodemographic composition of characters in books recommended by AP Literature has not shifted much for over twenty years. …”
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469
Prediction of Regional Logistics Heat and Coupling Development between Regional Logistics and Economic Systems
Published 2021-01-01“…Firstly, an index system was established to measure the level of coupling development between the two systems, and a grey relational analysis was performed on the indices, leading to the evaluation results on coordination degree. Next, a composite model of GM (1, 1) and backpropagation (BP) neural network was proposed, and the deviation interval of the composite predictions was predicted based on Markov chain prediction model. …”
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470
Growth, physical, and cognitive function in children who are born HIV-free: School-age follow-up of a cluster-randomised trial in rural Zimbabwe.
Published 2024-10-01“…Growth was assessed by anthropometry. Body composition was assessed by bioimpedance analysis and skinfold thicknesses. …”
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471
Downregulation of MerTK in circulating T cells of patients with non-proliferative diabetic retinopathy
Published 2025-01-01“…Patients with DM demonstrated a significant deviation in the PBMCs composition, particularly in B cells, CD4+ T cells, and NK cells, when compared to HDs. …”
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472
A new modelling approach for the pyrolysis step in biomass gasification
Published 2025-03-01“…The selected model has element mass balance deviations lower than 6 % and low deviations from the experimental results reported for several biomass samples. …”
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473
Analyzing the Reproductive Characteristics of the Naked Carp Gymnocypris Przewalskii (Kessler) Based on the Oxygen Isotopes of Otolith Core Using SHRIMP
Published 2023-06-01“…The average δ18O ratios of otolith cores were compared with the δ18O composition of lakes and rivers, as shown in Fig.E.1C. …”
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474
Versatility and stereotypy of free-tailed bat songs.
Published 2009-08-01“…In mammals, complex songs are uncommon and few studies have examined song composition or the order of elements in songs, particularly with respect to regional and individual variation. …”
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475
Development of a personalized diet using the structural optimization method
Published 2023-04-01“…The proposed approach allows solving the following tasks: 1) to analyze the daily diet or individual meals (breakfast, lunch, afternoon snack, dinner, additional meals or snacks) with a known quantitative set of finished products in terms of energy value and chemical composition in order to reveal dietary disorders; 2) to calculate quantity of products optimal for a meal from the fixed list, thereby composing an individual reference diet with regard to the mental and physical activities, nutritive status of a consumer and economic aspects; 3) to optimize a diet depending on the task at hand by selecting a group of finished products from a complete or selected list of archival data, equally taking into account all the necessary parameters; 4) to adjust the diet taking into account dietary deviations in certain parameters of the chemical composition and energy value by additional introduction of special purpose products with the increased biological value, multivitamin and multivitamin-mineral supplements, as well as natural bioactive substances.…”
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476
Spectrophotometric Determination of Bismuth(III) with Arsenazo(III) Reagent in Water samples and Veterinary Preparation
Published 2013-09-01“…The recoveries were obtained in the range of 98.9 - 100.0% and a relative standard deviation of ±0.59 to ±2.73% depending on the concentration level of bismuth. …”
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477
Rotationally Resolved Near-infrared Spectroscopy of Three Large Eurybates Family Members
Published 2025-01-01“…At least two spectra of each object were obtained, at different points of their respective rotational periods, to assess if they were compositionally heterogeneous as suggested by visible spectroscopy of (3548) Eurybates. …”
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478
الصفحة المعرفية المميزة لاضطراب طيف التوحد على مقياس وكسلر الصورة الرابعة مقارنة بالعاديين
Published 2024-10-01“…The sample consisted of 30 children with autism spectrum disorder aged 6: 9 years, average 7.51 years, standard deviation 1.13, and 30 Normal children aged 6: 9 years, average 7.39 years, standard deviation 0.65. …”
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479
Petrochemical features of upper jurassic deposits in Southeastern Caucasus (Azerbaijan)
Published 2025-04-01“…For the first time, lithochemical modules were calculated and petrochemical characteristics of the Upper Jurassic sedimentary complex of the South-East Caucasus were carried out based on silicate analysis. The chemical composition of the Upper Jurassic rocks is generally uniform, and the distribution of trace elements in these rocks does not show noticeable deviations. …”
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480
High-temperature mass spectrometric study and modeling of thermodynamic properties in the La2O3-TiO2 system
Published 2025-06-01“…The vapor composition over two samples of the La2O3-TiO2 system containing 50 and 90 mole % TiO2 was explored by the high-temperature Knudsen effusion mass spectrometric method. …”
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