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20521
An Electro Breakdown Damage Model for Granite and Simulation of Deep Drilling by High-Voltage Electropulse Boring
Published 2019-01-01“…At present, there are no suitable physical mathematical models that describe electropulse boring (EPB) processes under confining pressures. …”
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20522
Geometry and Space-Time Extent of Pion Emission Region at FCC Energies
Published 2016-01-01“…Estimations for charged particle density and its critical value allow the possibility of lasing behavior for secondary pions in nucleus-nucleus collisions at FCC energy. The mathematical formalism is presented for study of the peak shape of correlation function for general case of central-symmetrical Lévy–Feldheim distribution.…”
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20523
Design and Test of Quad-Bundle Spacer Damper Based on a New Rubber Structure
Published 2023-01-01“…Aiming at improving the handling efficiency and acquiring the satisfactory antivibration effect and damping performance, a quad-bundle spacer damper of 500 kV extra high voltage transmission lines was designed and developed based on a new rubber structure. Firstly, a mathematical vibration model of the spacer damper was constructed, and the structures of the defect-prone parts of the spacer damper were analyzed. …”
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20524
Feedback Control of Injection Rate of the Injection Molding Machine Based on PID Improved by Unsaturated Integral
Published 2021-01-01“…Then, the improved PID was applied to the injection speed control of an injection molding machine, which is usually controlled using conventional PID control that featured difficulty in mathematical modeling, a nonlinear relationship between the input and the output, and high system complexity. …”
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20525
Turbine Airfoil Optimization Using Quasi-3D Analysis Codes
Published 2009-01-01“…A key contribution of the paper is the development of metrics that emulate the perception of the human designer in visually evaluating the Mach Number distribution. A mathematical representation of the evaluation criteria coupled with a parametric geometry generator enables the use of formal optimization techniques in the design. …”
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20526
The Impact of Socio-Economic Challenges and Technological Progress on Economic Inequality: An Estimation with the Perelman Model and Ricci Flow Methods
Published 2024-12-01“…The article examines the impact of 16 key parameters of the Georgian economy on economic inequality, using the Perelman model and Ricci flow mathematical methods. The aim of the study is to conduct a deep analysis of the impact of socio-economic challenges and technological progress on the dynamics of the Gini coefficient. …”
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20527
Strategically Selecting Behaviors That Impact the Problem: An Approach Drawn from Social Marketing
Published 2020-10-01“…Using an approach drawn from social marketing to develop activities aimed at changing or maintaining people’s behavior, Extension professionals and other practitioners can prioritize behaviors by mathematically calculating anticipated weights that will help focus efforts around key behaviors with the potential to make the greatest impact. …”
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20528
The Effects of Poverty on Health Outcomes in Nigeria: An ARDL Approach
Published 2023-01-01“…In order to simulate how poverty affects health outcomes in Nigeria, the study utilized mathematical models to determine whether Nigeria health results (CO2 emission, patients per physician, life expectancy rate, and poverty rate) responds to poverty shock. …”
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20529
An Improved Grasshopper Optimizer for Global Tasks
Published 2020-01-01“…The grasshopper optimization algorithm (GOA) is a metaheuristic algorithm that mathematically models and simulates the behavior of the grasshopper swarm. …”
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20530
Application of System Identification for Modeling the Dynamic Behavior of Axial Flow Compressor Dynamics
Published 2017-01-01“…A proposed subspace system identification algorithm is used to extract three mathematical models: relating the tip air injection to the overall dynamics of the compressor and to the flow dynamics at the tip of the compressor blade and relating the movement of the throttle to the overall compressor dynamics. …”
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20531
Sparse group LASSO constraint eigenphone speaker adaptation method for speech recognition
Published 2015-09-01“…Original eigenphone speaker adaptation method performed well when the amount of adaptation data was suffi-cient.However,it suffered from server overfitting when insufficient amount of adaptation data was provided.A sparse group LASSO(SGL) constraint eigenphone speaker adaptation method was proposed.Firstly,the principle of eigenphone speaker adaptation was introduced in case of hidden Markov model-Gaussian mixture model (HMM-GMM) based speech recognition system.Then,a sparse group LASSO was applied to estimation of the eigenphone matrix.The weight of the SGL norm was adjusted to control the complexity of the adaptation model.Finally,an accelerated proximal gradient method was adopted to solve the mathematic optimization.The method was compared with up-to-date norm algorithms.Experiments on an mandarin Chinese continuous speech recognition task show that,the performance of the SGL con-straint eigenphone method can improve remarkably the performance of the system than original eigenphone method,and is also superior to l<sub>1</sub>、l<sub>2</sub>-norm and elastic net constraint methods.…”
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20532
The phenomenon of attractor in architecture
Published 2024-12-01“…Attractor is a deeply layered term of physical and mathematical research. In a trivial interpretation, it designates the phenomenon and the subject of attraction. …”
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20533
Research on Modification Method of Internal Gearing Power Honing based on Flexible Dressing of Honing Wheel
Published 2022-03-01“…Firstly,the tooth surface mathematical model of dressing and honing is established according to the motion relationship of each axis of gear honing machine. …”
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20534
Measuring. Monitoring. Management. Control
Published 2024-12-01“…The article describes in sufficient detail the proposed designs of polyfilm strain-resistant structures of various configurations. Mathematical models of multilayer film structures are considered and analyzed, the nominal values of strain gages are determined, and methodformation are determined. …”
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20535
SDP-Based Quality Adaptation and Performance Prediction in Adaptive Streaming of VBR Videos
Published 2017-01-01“…Our solution is based on a new statistical model where the future streaming performance is directly related to the past bandwidth statistics. We develop mathematical models to predict and develop simulation models to measure the average performance of the adaptation policy. …”
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20536
Prey – predator model on the interaction between the drawdown level of an aquifer and maize yield
Published 2017-02-01“…In this paper we formulated a mathematical model to analyse the interaction between the Draw-down levels in an unconfined aquifer with maize yield, using the parameters; aquifer recharged rate α, rate of interaction between the draw down level of the aquifer and the maize yield β, draw down level of the aquifer h, and the maize yield y. …”
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20537
CREEP RELIABILITY ANALYSIS OF TURBINE BLISK BASED ON DUAL RESPONSE SURFACE METHOD
Published 2019-01-01“…By constructing the finite element model of the blisk and the thermal-structural coupling analysis method, the stress and strain of turbine blisk were obtained. The mathematical model of dual response surface for stress and strain of turbine blisk was established by using the Latin hypercube small sampling technique. …”
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20538
Elastography in Hepatology
Published 2007-01-01“…Currently, in clinical practice, there are three available methods for the evaluation of liver fibrosis: liver biopsy, which is still considered to be the ‘gold standard’; serological markers of fibrosis and their mathematical combination – suggested in recent years to be an alternative to liver biopsy – and, more recently, transient elastography (TE). …”
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20539
Flettner Rotor Concept for Marine Applications: A Systematic Study
Published 2016-01-01“…This model is an effective mathematical tool for the preliminary design of Flettner rotor. …”
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20540
High-resolution mapping of cell cycle dynamics during steady-state T cell development and regeneration in vivo
Published 2025-01-01“…We developed an agent-based mathematical model of T cell developmental dynamics. …”
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