This research presents a study with the help of Finite Element Method and the use of
CATIA V5 program to know the behavior of a permissible link - column used in metal
structures at high temperatures (on fire). In this article we will present an an
alysis using the
finite element method using the CATIA V5 program for the effect of different engineering
parameters (plate thickness, screw diameter, reinforcement nerves) on the behavior of
joints used in metal structures on fire. We also studied the effect of the number of bolts on
the stresses and transitions in the link and their comparison with the welding cases. We
studied and analyzed the studied model and obtained the deformation and failure schemes
at high temperatures, the flow charts and the temperatures that show the behavior of this
link to the fire. We also obtained the stress and strain schemes for the link and the transport
and load schemes at different temperatures and the behavior of this link at these different
temperature.
In this research, the basic equation which describe the evaluation of
population and phase during the time for Boson-Josephson Junction has
been concluded in to consider two and three body interaction potential.
Then josephson frequencies have been calculated of BJJ in the presence
of three body interaction.
Our subject contains studying criterions which ensuring a durable serving of concrete
frame joints, and then choosing two connections according to its deployment and the
availability of its arithmetic relations and easy to be prepared from local ma
terials, and
discuss experimental results of the resent study which allow us to achieve the next part of
our research,which is a structural designing programme by visual basic language to serve
the work in order to be fast and precise.
the last part of the subject is comprising a number of actualizations which confirm
that the process of programming is correct, and then compare the results of experimental
programs and code with our programme results to achieve many important ameliorations
on this programme to become more easily and better.
In this research, We interest to studying two methods of ways to increase the reliability of wireless communication, namely: hybrid retransmission protocols (HARQ Protocols) and adaptive coding data (Adaptive Coding), in order for the wireless commun
ication system between two points: the first is fixed and represents the control and leadership station .The second represents a body moving and it is controlled from the command station , it performs various measurements and sent it to the command station.
The purpose of this research is to develop geometric procedures to determine the optimal values for
parameters used for designing double-mass electromechanical subordinate system, by applying PID
regulator. The research methods in this study aim to
improve the dynamic characteristics and to have
the minimal limit of the oscillations in the system, and it is materialized by using the Multi-Dimensional
Optimal Parameters Method -that has been created in previous research .
Anatomical and structural reasons in the posterior region of the two jaws, and
unacceptance of the patient to do several surgical procedures in order to place many implants, or the
failure of one of the inserting implants, all these make us thinkin
g of combining implant with the natural
tooth in the same fixed prosthesis. The aim of the study is ashort observation of the incidence of the
Technical complications in fixed partial prosthesis which consist of three units and connect a natural tooth
to implant in the posterior region of the mandible, through two years of function.
