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14301
SCSO: snake optimization with sine-cosine algorithm for parameter extraction of solar photovoltaic models
Published 2025-04-01“…Abstract Solar power generation is a clean and sustainable energy source. To ensure the efficient operation of photovoltaic (PV) systems, it is essential to develop accurate equivalent models of PV cells and precisely determine their unknown parameters. …”
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14302
Green synthesis of silver nanoparticles using Padina commersonii: Characterization, hypoglycemic effects, and antimicrobial potential against human pathogenic bacteria
Published 2025-06-01“…Background: Nanotechnology is a dynamic field comprising chemistry, physics, biology, and engineering, with a high proficiency in disease treatment delivery methods. Metallic precursors (e.g.,AgNO3) are widely used to synthesize NPs. …”
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14303
Fifty years of geophysical researches of glaciers in Institute of Geography, the Russian Academy of Sciences, 1966–2016
Published 2016-12-01“…Basic results of these studies are the following: (1) the new data on the ice thicknesses, ice volumes, subglacial relief, internal structure, and thermal state of the glaciers were obtained; (2) the two‑layered (polythermal) glaciers consisting of the upper layer of cold ice and the lower layer of temperate water‑filled ice had been revealed in Svalbard for the first time; spatial distribution of cold, polythermal and temperate glaciers had been determined; (3) the evidences were obtained that measured changes in thickness of the upper cold ice layer in polythermal glaciers can be used to estimate the long‑period variations of regional climates and serve as regional paleothermometers; (4) methods for estimating the water content in temperate and polythermal glaciers from the RES data were developed; and its space‑time variations in temperate ices of the Svaldbald glaciers were estimated since even small water content inside of them can noticeably change their dynamic behavior; (5) methods for estimating the ice volume within glaciers in large regions of mountain and polar glaciations had been created; the ice storages were estimated in Svalbard, Franz Josef Land, Dzhungrsky Alatau, the Great Caucasus, and Mt. …”
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14304
Using natural experiments to evaluate population health interventions: a framework for producers and users of evidence
Published 2025-03-01“…An overview of key quantitative methods is provided, avoiding a hierarchy as the choice of methods should be determined by the research questions and the availability of data, with each method having strengths and weaknesses and therefore appropriateness of use determined by the circumstances of the evaluation. …”
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14305
Construction of a model for the rapid detection of acids in strong-flavor original Baijiu based on mid-infrared spectroscopy technology
Published 2025-03-01“…The results showed that the coefficients of determination R<sup>2</sup> of the quantitative models for total acid, caproic acid, acetic acid and butyric acid were more than 0.90, the root-mean-square error (RMSE) of both the calibration set and the prediction set was less than 0.041 g/L, the optimal numbers of principal component were 9, 19, 8 and 9, respectively, and the relative errors of the quantitative models were less than 10% for total acid, caproic acid and acetic acid and less than 51% for butyric acid. …”
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14306
Two-Timescale Cross-Layer Design for URLLC Over Parallel Fading Channels With Imperfect CSI
Published 2025-01-01“…In the large timescale, the pilot length and pilot power are optimized while in the small timescale, the data transmit power and decoding error probability are optimized according to the estimated channel coefficients and queueing information. As a starting step in our small timescale solution, we train a deep reinforcement learning (DRL) agent employing the Twin Delayed Deep Deterministic Policy Gradient (TD3) algorithm to allocate the data transmit power on each sub-channel and determine the decoding error probability to satisfy the URLLC constraints in an ideal environment with perfect instantaneous CSI. …”
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14307
Evaluation of Ecological Carrying Capacity in Qinghai Province Based on DPSIR-TOPSIS Model
Published 2022-04-01“…The entropy value method was applied to determine the weight coefficients of the indexes. …”
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14308
Exploration of a Polygenic Risk Score for Alcohol Consumption: A Longitudinal Analysis from the ALSPAC Cohort.
Published 2016-01-01“…We modelled log units of alcohol using a linear mixed model and calculated beta coefficients for each SNP separately. Cross-validation was used to determine an allelic score for alcohol consumption, and the AVENGEME algorithm employed to estimate variance of the trait explained.…”
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14309
Applying Acoustic Signals to Monitor Hybrid Electrical Discharge-Turning with Artificial Neural Networks
Published 2025-02-01“…The parameters investigated included sample rate, length of the FFT window, hop length, and the number of mel-frequency cepstral coefficients (MFCC). The study aimed to determine the optimal preprocessing parameters considering the highest precision, recall, and F1 scores. …”
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14310
Acoustic resonant imaging technique for characterization ofphotoresist properties depending on hard bake temperature
Published 2025-03-01“…This technique is based on acoustic resonance, where sound passing through a thin layer reaches extreme values in its transmission and reflection coefficients at a resonant frequency. With plotting these acoustic properties in two-dimensional, in the case of photoresists, this method allows for the identification of regions with distinct properties, facilitating optimal alignment for mask positioning and direction. …”
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14311
A Financial Stability Model for Iraqi Companies
Published 2024-09-01“…In this model, the scientific method used to analyze the results determines the weight of each dimension, component, and indicator. …”
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14312
Evaluating Validity and Reliability of the Persian Version of "Mental Illness: Clinicians\' Attitudes " Scale among Final Year Medical and Nursing Students at Shiraz University of...
Published 2025-05-01“…Methods: This cross-sectional study was conducted on 300 medical and nursing students of Shiraz University of Medical Sciences. …”
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14313
Preparation of Ampicillin Surface Molecularly Imprinted Polymers for Its Selective Recognition of Ampicillin in Eggs Samples
Published 2018-01-01“…This work presents a sensitive, fast, and convenient method for the determination of trace ampicillin in food samples.…”
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14314
Influence of Loosely Bound Water on Compressibility of Compacted Fine-Grained Soils
Published 2020-01-01“…The volumetric flask method was used to measure the LBW contents of the five soils. …”
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14315
Biodiversity characteristics of large forest plots in Qinghai area of Qilian Mountain National Park
Published 2024-12-01“…As the tree height increased, the Shannon-Wiener was decreased, while the species richness and Simpson index were increased significantly. The coefficients of determination for the training and testing sets of the machine learning model were 0.95 and 0.93, respectively, with root mean square errors of only 0.06 and 0.08. …”
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14316
The role of interfacial tension in the size-dependent phase separation of atmospheric aerosol particles
Published 2025-01-01“…However, in sufficiently small particles, the interfacial tension between two liquid phases constitutes an energetic barrier that may prevent the formation of an additional liquid phase. Determining said small-size limit is a key question.…”
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14317
LIMITING THE VERTICAL VARIANCE OF ANNUAL RING AREA OF POPULUS NIGRA PLANTATION IN NINEVAH
Published 2009-12-01“…This involved different regression methods depending on statistical analysis scales in evaluation the equation and the result equation is as follows: S= b0 + b1(hb2/Ab3) R2= 0.77 S.E% = 0.73 Determination of equation coefficients and standard error show accurate values, also the equation were tested by taking standardized residual. …”
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14318
Bilateral External Torque CT Reliably Detects Syndesmotic Lesions in an Experimental Cadaveric Study
Published 2024-12-01“…So far, no reliable diagnostic method has been available. The primary objectives of this study were to determine whether defined lesions of the syndesmosis can be correlated with specific tibiofibular joint displacements caused by external rotation (ER) torques and to compare its performance with arthroscopy. …”
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14319
Comparative Study on the Accuracy of Terrestrial and Global Gravitational Models (GGMs) Gravity Anomalies for Akure Environs, Ondo State, Nigeria
Published 2025-06-01“… Spherical harmonic expansion is a mathematical method used to describe Earth's gravity field, derived from potential coefficients observed both on Earth's surface and from space. …”
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14320
Endogeneity of money supply in Iran based on post keynsian approach: State-space modeling
Published 2025-03-01“…Also, the trend of the coefficients indicates their changes over time. Based on the findings, the nature of banks is confirmed as a liquidity creation institution in addition to the central bank. …”
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