Search alternatives:
efficient. » efficiency. (Expand Search)
coefficient. » coefficiency. (Expand Search)
efficient. » efficiency. (Expand Search)
coefficient. » coefficiency. (Expand Search)
-
841
-
842
Application of Non-Linear System Model Updating Using Feature Extraction and Parameter Effects Analysis
Published 2001-01-01“…This provides indicators of the statistical variation associated with parameters as well as confidence intervals on the coefficients of the resulting meta-model. Also included in this method is the investigation of linear parameter effect screening using a partial factorial variable array for simulation. …”
Get full text
Article -
843
Pavement Deterioration Modeling of the International Roughness Index Based on Fuzzy Logic Approach
Published 2025-07-01“…Various types of pavement distress, such as fatigue cracking, rutting, longitudinal cracking, block cracking, transverse cracking, patching, ravelling, and potholes, are input variables; these parameters are fuzzified into fuzzy subsets with triangular membership functions. …”
Get full text
Article -
844
CHANGES AND TRENDS IN WINE PRODUCTION AND CONSUMPTION IN THE WORLD AND ROMANIA DURING THE PERIOD 2007-2018
Published 2019-01-01“…The paper analyzed the evolution of wine production and consumption in Romania and at the world level in order to identify the main changes and trends in the period 2007-2018 using official data which have been processed using fixed and variable indices, correlation coefficients, regression functions, consumption/production rate, export/consumption rate, self sufficiency rate and import dependency rate. …”
Get full text
Article -
845
A robust deep learning approach for photovoltaic power forecasting based on feature selection and variational mode decomposition
Published 2025-08-01“…To further enhance model inputs, Variational Mode Decomposition (VMD) is applied to extract informative Intrinsic Mode Functions (IMFs) from the selected features. A comparative evaluation of the models indicates that recurrent neural networks, particularly GRU and LSTM, deliver superior performance across various metrics, including RMSE, MAE, nRMSE, nMAE, R², and the correlation coefficient. …”
Get full text
Article -
846
Optimized Control of Hybrid Energy Storage Systems Using Whale Optimization Algorithm for Enhanced Battery Longevity and Stability in Microgrids
Published 2025-05-01“…The method optimizes two key variables: current sharing coefficients and the smoothing constant, enabling continuous HESS functionality. …”
Get full text
Article -
847
Regional calibration of ecosystem service valuation under climate and tourism influences: a case study in subtropical Longyan, China
Published 2025-08-01“…Abstract Precise evaluation of ecosystem service value (ESV) under climate variability is essential for supporting regional ecological management. …”
Get full text
Article -
848
Exploration of a Polygenic Risk Score for Alcohol Consumption: A Longitudinal Analysis from the ALSPAC Cohort.
Published 2016-01-01“…We tested the association between 89 SNPs (identified from either published GWAS data or from functional literature) and repeated measures of alcohol consumption, separately in mothers (from ages 28-48) and offspring (from ages 15-21) who had ever reported drinking. …”
Get full text
Article -
849
Stability and Optimal Control Analysis for a Fractional-Order Industrial Virus-Propagation Model Based on SCADA System
Published 2025-04-01“…As is known to all, there is no unified method to establish a Lyapunov function. In this paper, by constructing an appropriate Lyapunov function and applying the method of undetermined coefficients, we prove the global asymptotic stability for all possible equilibrium points. …”
Get full text
Article -
850
Dimensions-Reduced Volterra Digital Pre-Distortion Based On Orthogonal Basis for Band-Limited Nonlinear Opto-Electronic Components
Published 2019-01-01“…However, naive implementation of the Volterra polynomial model usually introduces significant complexity due to the large number of model coefficients. Here, we propose the use of orthogonal polynomial basis functions for efficient DPD implementation. …”
Get full text
Article -
851
Research and application on megawatt level intelligent fracturing pump system in coal mine
Published 2025-05-01“…The research included: Development of high-strength, erosion-resistant martensitic precipitation hardening stainless steel suitable for extreme conditions with large flow, ultra-high pressure, and sand-mixed media, along with ultra-high pressure self-reinforcing treatment to enhance the fatigue life of the hydraulic ends of fracturing pumps; Investigation of critical reliability technologies, including high-strength welding for alloy steel, high-load-bearing, high-power-to-weight ratio gear transmission technology, and wear-resistant friction pairs of aluminum bronze alloy-cast iron, to ensure the reliability of the transmission system under high-power conditions; Creation of a high-durability metal plunger-combination seal fracturing fluid sealing pair, with the application of computer simulation technologies such as virtual prototyping, FEA, CFD, and hydraulic system simulation to optimize the structure, performance, and reliability of the fracturing pump’s fluid end suction and discharge systems; Mastery of technologies such as low-frequency variable flow sealing for deep boreholes, automatic identification of coal and rock layer fracturing, and cyclic fracturing control, enabling intelligent control throughout the fracturing process. …”
Get full text
Article -
852
Mandibular reconstruction outcomes for in-house patient-specific solutions
Published 2025-07-01“…Inter-rater reliability was assessed via intraclass correlation coefficient. Demographic, clinical, surgical, and radiographic variables were also collected to profile cohort characteristics and outcomes. …”
Get full text
Article -
853
Comparison of river and drinking water quality of infiltration intakes based on statistical colour data
Published 2025-01-01“…A significant contribution (79 to 89%) to the variation of the indicator in drinking water is made by random variable. Correlation coefficients calculated from monthly averages revealed a weak relationship (on the Cheddock scale) between river and drinking water colour, whereas correlation coefficients calculated from monthly averages of colour in the model year characterise the relationship at IWI1 as high and very high at IWI2. …”
Get full text
Article -
854
The effects of IT capability and distribution competence on business performance of retailers in Omnichannel
Published 2025-03-01“…Results: Information technology capability and distribution competence have a direct impact on business performance, with beta coefficients of 0.198 and 0.271, respectively. Meanwhile, the regression coefficients of indirect relationships through mediating variables are 0.204 and 0.097, respectively. …”
Get full text
Article -
855
Test–retest reliability and validity in lower limb proprioception tests using image capture technique in healthy adults
Published 2024-12-01“…In statistical analysis, the test–retest reliability and construct validity were evaluated using intraclass correlation coefficients (ICC) and Spearman’s rank correlation coefficients. …”
Get full text
Article -
856
On Mixed Problems for Quasilinear Second-Order Systems
Published 2010-01-01“…The proof of the main theorem relies on two preliminary results: existence of the solution to mixed problems for linear second-order systems with smooth coefficients, and existence of the solution to initial-boundary value problems for linear second-order operators whose coefficients depend on the variables 𝑥 and 𝑡 through a function 𝑣∈𝐻𝑠(ℜ𝑑+1). …”
Get full text
Article -
857
Validation and Discriminant Analysis of the Athens Insomnia Scale in Older Adults
Published 2025-06-01“…Its two‐dimensional structure distinguishes nocturnal sleep problems and their effects on daytime functionality.…”
Get full text
Article -
858
Correlation between Electrochemical Relaxations and Morphologies of Conducting Polymer Dendrites
Published 2024-01-01“…Correlations are established between dispersive capacitances of dendritic morphologies and growth duration, independently from exogenous physical variables: distance, evaporation or aging. Deviation of the anomalous capacitance from the conventional Debye dielectric relaxation can be programmed, as the growth controls the dispersion coefficient of the dendrite's constant-phase elements relaxation. …”
Get full text
Article -
859
Evaluation of oral health-related quality of life in burn survivors: A cross-sectional study
Published 2024-01-01“…Purpose: The face, crucial to identity, is susceptible to the functional and psychological impact of burn injuries. …”
Get full text
Article -
860
ECOLOGICAL TOLERANCE OF THE SPRING BARLEY VARIETY ‘PRERIYA’ ON THE BLACKEARTH (CHERNOZEM) OF THE ROSTOV REGION
Published 2018-06-01“…The study has found that the cultivation of the spring barley variety ‘Prerie’ is ecologically stable in a five-crop rotation sequence, the structure of which includes peas, winter wheat, sunflower and perennial grasses with subsoil plowing with the use of 1 kg/ha mineral fertilizers N90Р40К90, which provides a minimum variability in yield (10%) and the highest coefficient of environmental stability of the studied variety (0.58). …”
Get full text
Article