Joints study in Skhaba region shows the existence two joint directions, principal dominant
NW-SE Joints from extension origin upper Cretaceous age, unrelated and older than faults
in studied area statistically, the presence of Calcareous filling in
the joints that is supported
the extension origin in the first phase. Secondary NE-SW joints from Miocen-Pliocen in
age, and from extension origin ,related to the formation of faults, most of them contain thin
iron crust in secondary phase.
The various faults that hit the Tanak area were identified by
studying the seismic sections in several directions and with specific
exclusions, and intensifying those exclusions to increase their
accuracy of clarity by using the most appropriate t
ypes of seismic
attribute maps for the 3D survey (Edge Enhancement map -
Artificial Illumination map - Azimuth map - Dip map - Seismic
Amplitude map - Polarity map - Frequency map) for accurate check
of these faults and cracks in the studied area especially for Al-
Rutbah formation. We found helpful and supportive indicators in
order to determine its optimal location by applying previous
seismic maps on its seismic surface. These maps were compared
with each other after being exported to the Petrel program besides
the time map of the study area. As a result, the fault boundaries
were determined as accurately as possible by using the programs:
(Geoframe - Petrel -Word).
Study of faults at Lattakia region shows normal, reversed and
strike-slip faults. Main fault directions and their geologic age
estimation were determined. The normal faults have NE-SW
main direction from Middle Miocene and E-W secondary
direction from Paleogene.
This paper introducesa new expert system (ES) for faulted section determination in
electrical power system andinterpretingthe performance of the protective system (relays
and circuit breakers). The introducedESrequiresinformation about the power sy
stem
configuration and about the contacts status (open/closed) of the circuit breakers and
protective relays. It can determine the faulted section quickly and accurately for all types
of faults including simultaneous faults. It is general, i.e.it can be usedwith any power
system,due to the separation between the Facts and Rules. The introducedES isdeveloped
and tested by CLIPS environment (C Language Integrated Production System) which uses
forward chaining to derive conclusion.
The performance of the introduced ES is tested for several power systems, IEEE–6 bustest
system, IEEE–9 bustest system andIEEE–14 bustest system, and it shows a distinct
performance for all tested systems. But for space limitation, we present in this paper the
performance results of the introduced ES for the IEEE–9 bustest system only.
In area of Elward east located in Euphrates Graben, 2D and 3D
Seismic data were used to reveal subsurface geological structures,
especially Reservoir Rutbah Formation dated as Lower Cretaceous
and to explore hydrocarbon traps of this Formation. And to
discover new drillable locations by integrating geological and
seismic data and using seismic attribute techniques such as Dip
and coherency.
Radon is a radioactive gas, occurring naturally as a decay product of uranium .Radon is the second cause of lung cancer according to EPA and WHO estimates. The presence of cracks plays a major role in transmission of radon from depth to the surface o
f the earth and steams it into the air.The leakage of radon from the foundation soils is usually the primary source of indoor radon pollution. Due to the growth of urban population in active tectonic regions and because tectonic activity is accompanied by an increase in radon concentration; the emission of radon in these regions and its leakage into houses will be higher thus,it becomes necessary to conduct researches in those regions and take appropriate preventive and corrective actions to reduce the presence of radon in the houses and in foundation soils.
The importance of this research comes from benefiting from measurements of the change of radon concentration and its implications from both Geotechnical and Geo-environmental aspects.
The objective of this work is to study and design a module of super capacitors for recovering the braking
energy in trolleybuses. The module of super capacitors is charged and discharged by Buck-Boost
converter that is reversible in current. The co
ntrol and the smoothing elements of the converter are
designed with taking into account the non-linear nature of super capacitors. To recover quickly the
braking energy, the module is charged with constant current, while the discharging is done with constant
voltage on the DC link of trolleybus. The module of super capacitors in its different operations (starting
up, powering auxiliary equipments, braking) is simulated in the SIMPLORER environment. As a result,
the different operating values (as voltage, current and temperature) are determined for the elements of
the studied module (diodes, IGBTs, capacitor, super capacitors). Finally, the failure rate and the
reliability of the module elements are estimated depending on the different operating factors. The module
faults is analyzed.
