Current Issue : July - September
Volume : 2021
Issue Number : 3
Articles : 5 Articles
To make business policy, market analysis, corporate decision, fraud detection,
etc., we have to analyze and work with huge amount of data. Generally, such
data are taken from different sources. Researchers are using data mining to
perform such tasks. Data mining techniques are used to find hidden information
from large data source. Data mining is using for various fields: Artificial
intelligence, Bank, health and medical, corruption, legal issues, corporate
business, marketing, etc. Special interest is given to associate rules, data mining
algorithms, decision tree and distributed approach...........
In this study, a finite element simulation of in-stent restenosis (ISR) is conducted to simulate
the deployment and expansion of a stent in an occluded artery with a contact model and
a mechanics-based growth model. A tissue growth model based on the multiplicative decomposition
of deformation is applied to investigate the growth of the plaque and artery wall
upon the stent’s implantation. Due to the high stresses at the contact points between the stent
struts and the tissue, further tissue injury or restenosis is observed. The simulation results
show that after the stent deployment, the von Mises stress is significantly larger in the plaque
compared to the artery wall, especially in the region that is in contact with the stent.
However, the growth of the plaque and artery tends to even out the stress concentration
Aiming at the gate design problem of a mobile phone panel, the plastic forming
analysis software Moldflow and drop simulation were used to optimize
the gate design. Six different gate design schemes were compared and studied,
and the weld lines positions and injection molding results under each gate
scheme were analyzed. Through the simulation analysis of the falling process
of the mobile phone panel by the display dynamics analysis software ANSYS
Workbench LS-DYNA, five analysis schemes were set according to the falling
angle, and the stress distribution at the weld lines positions of the mobile
phone panel in each scheme was studied............
The sustainable exploitation of raw materials, with improved safety and increased productivity,
is closely linked to the development of mechanical mining installations. Mine hoists are
designed for the transport of material, equipment and personnel between the mine surface and
the underground. The mine hoist braking system is of paramount importance in its safe operation.
Thus, for both drum and disc brake systems, the temperature of the friction surfaces is important for
ensuring efficient braking, as exceeding the temperature threshold causes a decrease in the braking
capacity. In this paper we present a numerical calculation model for the temperature of the braking
disc of a mine hoist in the case of emergency braking. A real-scale model was built, based on the
cable drive wheel and disc brake system of a hoisting machine used in Romania...........
Aiming at the problem of resource scheduling optimization in enterprise management cloud mode, a customizable fuzzy
clustering cloud resource scheduling algorithm based on trust sensitivity is proposed. Firstly, on the one hand, a fuzzy clustering
method is used to divide cloud resource scheduling into two aspects: cloud user resource scheduling and cloud task resource
scheduling. On the other hand, a trust-sensitive mechanism is introduced into cloud task scheduling to prevent malicious node
attacks or dishonest recommendation from node providers. At the same time, in the cloud task scheduling, cloud resources are
divided according to the comprehensive performance of resources, and the trust sensitivity coefficient of each type of task
resources is calculated..............
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