Results 1 to 10 of about 724,033 (296)

An investigation of integrating the finite element method (FEM) with grey system theory for geotechnical problems. [PDF]

open access: yesPLoS ONE, 2022
Numerical simulation is very important to solve geotechnical problems. However, it is difficult to obtain required comprehensive and accurate information such as parameters, boundary conditions, and etc. In this paper, a grey distributed parameter model,
Yao Li, Guowei Zhu, Qingchao Zhang
doaj   +2 more sources

A Project Cost Forecasting Method Based on Grey System Theory

open access: yesChemical Engineering Transactions, 2016
In view of the traditional forecasting methods of project cost, there are some limitations and uncertainties. In the case of the historical data is not complete, and it requires more quickly and accurately the cost of the project.
J.D. Zhao
doaj   +2 more sources

Reliability modeling framework of satellite constellation based on three-parameter interval grey number Lz transformation [PDF]

open access: yesScientific Reports
The performance of in-orbit communication satellites generally degrades over time due to depletion mechanisms, rendering them multistate systems with varying output performance levels.
Ruirui Shao, Weiqing You, Yuanyuan Nie
doaj   +2 more sources

FORECASTING THE NUMBER OF FAILURES OF THE STEERING SYSTEM COMPONENTS WITH THE USE OF THE GREY SYSTEM THEORY METHOD [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2021
Steering systems are one of the most important components of a car and have a direct impact on safety and driving comfort. Therefore, high reliability is required of them. One of the methods of object reliability estimation may be the grey system theory.
Tomasz KĄDZIOŁKA, Kazimierz OPOKA
doaj   +1 more source

PREDICTING ECONOMIC INDICES OF VEHICLE INSURANCE USING THE “GREY-SYSTEM THEORY” [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2020
This paper contains a prognosis of vehicle insurance economic indices using the Grey System Theory. It has been prepared based on data provided by a certain insurance company.
Kazimierz OPOKA
doaj   +1 more source

Comprehensive Evaluation Method of Supply Chain Logistics System Quality Based on 3D Image Processing Technology

open access: yesAdvances in Mathematical Physics, 2022
With the rise of manufacturing informatization, many transactions are conducted on the Internet, but the final form of transaction completion is the transaction of actual products, which makes the logistics industry emerge as the times require.
Dan Xu, Jiasheng Qi
doaj   +1 more source

Optimal Operation of Multiple Energy System Based on Multi-Objective Theory and Grey Theory

open access: yesEnergies, 2021
The manufacturing industry consumes electricity and natural gas to provide the power and heat required for manufacturing. Additionally, large amounts of electric energy and heat energy are used, and the electricity cost, amount of environmental pollution,
Bo Hu   +5 more
doaj   +1 more source

Prediction analysis on propulsion shafting load based on grey system theory

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectiveThe propulsion shafting system is an important part of a ship, and the bearing load directly affects its operating state and service life. In this paper, bearing load under hull deformation is studied using grey system theory.
Yulong ZHANG, Wei WU, Jianhui ZHOU
doaj   +1 more source

A novel approach for ANFIS modelling based on Grey system theory for thermal error compensation [PDF]

open access: yes, 2014
The fast and accurate modelling of thermal errors in machining is an important aspect for the implementation of thermal error compensation. This paper presents a novel modelling approach for thermal error compensation on CNC machine tools.
Abdulshahed, Ali   +2 more
core   +1 more source

Forecasting the building deformation using the non-equidistance Grey Model (1,1) [PDF]

open access: yesPodzemni Radovi, 2020
The Grey Model (GM) is a powerful tool in the Grey System Theory for estimating the behavior of partially unknown systems or systems with limited information. In the Grey System Theory, GM(1,1) is the most widely used model for prediction.
Milutinović Aleksandar   +3 more
doaj  

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