Suggested Topics within your search.
Suggested Topics within your search.
-
861
A design-based framework for optimal stratification using super-population models with application on real data set of breast cancer.
Published 2025-01-01“…This study investigates the determination of stratification points for two study variables within the framework of simple random sampling, with a focus on estimating the population mean using a closely related auxiliary variable. …”
Get full text
Article -
862
Fisher Information-Based Optimization of Mapped Fourier Grid Methods
Published 2024-10-01“…The mapped Fourier grid method (mapped-FGM) is a simple and efficient discrete variable representation (DVR) numerical technique for solving atomic radial Schrödinger differential equations. …”
Get full text
Article -
863
An Optimal Hybrid Control Method for Energy-Saving of Chilled Water System in Central Air Conditioning
Published 2018-01-01“…Here, an optimum control method is proposed with the principle of the minimum, by setting the minimum power consumption as the performance function in fixed time, which realizes variable control of pumps and accurate adjustment of temperature inside room. …”
Get full text
Article -
864
Lattice Boltzmann Method for the Generalized Black-Scholes Equation
Published 2023-01-01“…In this paper, an efficient lattice Boltzmann model for the generalized Black-Scholes equation governing option pricing is proposed. …”
Get full text
Article -
865
Optimal Design Method of Integrated Energy Systems Considering Staged Planning and Equipment Replacement
Published 2021-09-01“…Then, with the whole project cycle as the optimization time scale, the relationship between the equipment installation year and the current remaining life is modeled by introducing the equipment selection and operation decision variables. Finally, considering the influence of economic factors such as nominal interest rates and inflation rates, an objective function, involving investment costs, operating costs, and equipment residual value income, is constructed, with the optimal economical performance as the goal. …”
Get full text
Article -
866
Optimization Study of PVT Coupled Water Loop Heat Pump Energy Supply System
Published 2025-01-01“…By employing the Hooke-Jeeves algorithm, the system's design and operation parameters were optimized with annual cost and system COP as objective functions. Design variables included PVT inclination, azimuth, area, heat pump capacity, and tank volume, while operational variables were PVT backplate temperature and tank temperature. …”
Get full text
Article -
867
Road Permeability Index as a tool for mitigation planning of road impacts on wildlife in Colombia: a case study using mammals
Published 2022-07-01“…The influence of 12 landscape variables on the permeability of each functional group was assessed at 30 locations along the road. …”
Get full text
Article -
868
Sensory profiles in older adults with orthopedic conditions during quiet stance: a cross-sectional study
Published 2025-02-01“…Methods Fifty-one older adults (76.9 ± 7.6 years) were divided into 2 Functional Groups (FG-/FG+) according to a composite score that included 3 variables (gait speed, grip strength and fear of falling). …”
Get full text
Article -
869
A Novel Multi-Dynamic Coupled Neural Mass Model of SSVEP
Published 2025-03-01“…Steady-state visual evoked potential (SSVEP)-based brain—computer interfaces (BCIs) leverage high-speed neural synchronization to visual flicker stimuli for efficient device control. While SSVEP-BCIs minimize user training requirements, their dependence on physical EEG recordings introduces challenges, such as inter-subject variability, signal instability, and experimental complexity. …”
Get full text
Article -
870
On practical aspects of optimal modelling in boundary element method
Published 2001-01-01“…Since the optimal discretization theory derived for the function of one variable, then only the 2D problem is considered. …”
Get full text
Article -
871
Estimation of micro-extraction process hippuric acid for toluene exposure monitoring in urine samples
Published 2025-08-01“…Abstract This study employed a quick, efficient, sensitive, and easy-to-use micro-extraction process to monitor biomarker hippuric acid (BIHA) in urine samples as a bioindicator of exposure to toluene with an HPLC-DAD instrument. …”
Get full text
Article -
872
Commercial Vehicle Ride Comfort Optimization Based on Intelligent Algorithms and Nonlinear Damping
Published 2019-01-01“…The sum of the frequency-weighted RMS of the driver seat acceleration, the RMS of dynamic tyre load, and suspension working space is taken as the objective function in this article, using nonlinear damping coefficients and stiffness of suspension as design variables. …”
Get full text
Article -
873
Algorithm for Dynamic Reactive Power Optimization of Regional Power Grid Based on Interior Point Method and Neighborhood Search Decoupling Dynamic Programming Method
Published 2023-02-01“…The two-stage method could not only ensure the quality of the optimal solution, but also avoid solving the state combination explosion problem with discrete variables, which greatly improves the computational efficiency. …”
Get full text
Article -
874
Design of Hall power supply based on full bridge half bridge switching digital LLC resonant converter
Published 2025-02-01“…The LLC resonant converter is studied for half bridge full bridge dynamic topology switching and soft start, achieving high efficiency and wide range output. By establishing a fundamental model of LLC resonant converter, analyzing the characteristic curves of frequency and gain, selecting the values of K and Q, variable frequency control output voltage is achieved, and a low peak full bridge half bridge switching mode based on simultaneous frequency conversion and variable duty cycle is designed. …”
Get full text
Article -
875
Sustainable PV-hydrogen-storage microgrid energy management using a hierarchical economic model predictive control framework
Published 2025-02-01“…First, a precise nonlinear model of the PHS microgrid is established and the logic variables are introduced to capture the hydrogen devices’ short-term properties, i.e., the start-up/shut-down of electrolyzers and fuel cells. …”
Get full text
Article -
876
Beyond Spirometry: Linking Wasted Ventilation to Exertional Dyspnea in the Initial Stages of COPD
Published 2024-12-01“…Several lines of evidence indicate that the so-called excess ventilation (high ventilation-CO2 output relationship) primarily reflects poor gas exchange efficiency, namely increased physiological dead space. …”
Get full text
Article -
877
Some Iterative Methods Free from Derivatives and Their Basins of Attraction for Nonlinear Equations
Published 2013-01-01“…First, we make the Jain's derivative-free method optimal and subsequently increase its efficiency index from 1.442 to 1.587. Then, a novel three-step computational family of iterative schemes for solving single variable nonlinear equations is given. …”
Get full text
Article -
878
The effects of IT capability and distribution competence on business performance of retailers in Omnichannel
Published 2025-03-01“…To maintain the effectiveness of business operations, increase customer value and enhance competitive advantage, retailers should generate the efficiency of IT and distribution functions. Contribution: Omnichannel is a relatively new channel in Vietnam. …”
Get full text
Article -
879
Deletion of genes linked to the C1-fixing gene cluster affects growth, by-products, and proteome of Clostridium autoethanogenum
Published 2023-05-01“…Currently, acetogens that utilise the Wood-Ljungdahl pathway to convert carbon oxides (CO and CO2) into valuable products are the most advanced biocatalysts for gas fermentation. …”
Get full text
Article -
880
Assessing the Effectiveness of DL-Clustering for Energy Optimization in Wireless Sensor Networks
Published 2025-08-01“…Determining the fitness function allows us to estimate the player's stability over these variables. …”
Get full text
Article