The majority of known polymer materials are electrically insulating.
But there are some of polymers are intrinsically conducting in
nature, However, it is lacking in process ability, and the scope for
manipulation of electrical and mechanical prop
erties is limited. The
method which used to solve this problem is an addition of a
conductive metal filament into a polymer filament yarn. Which can
be directly integrated into a textile, or can be knitted. So we made
a device able to produce this kind of conductive yarns which
depends on melt spinning technique but with the elimination of
necessary pressure for extrusion. And we were able to produce
samples of copper filament coated with polymeric material (low
density polyethylene).
In this research we study the single-particle with particle-rotor model of the
isotopes. The rotational energy of the nucleus related to its
orientation .
This model study the nucleus as a tow parts ; one of them is the core which is
moving in a
collective motion, in addition of the other part of motion which is the single
particle motion outside the core.
The calculation shows that adding the coriolis effect make a better agreement to the
experimental values of the energy than the calculation without the coriolis effect the
research suggestion adding the vibration motion which contributes in the core vibration.
We introduce a taxonomic study of parallel programming models
on High-Performance architectures. We review the parallel
architectures(shared and distributed memory), and then the
development of the architectures through the emergence of the
heter
ogeneous and hybrid parallel architectures.
We review important parallel programming model as the
Partitioned Global Address Space (PGAS) model, as model for
distributed memory architectures and the Data Flow model as
model to heterogeneous and hybrid parallel programming. Finally
we present several scenarios for the use of this taxonomic study.
Recent technological advances have greatly improved the performance and features
of computers and mobile systems. This improvements leads to increase in power
consumption which makes the task of managing their power consumption necessary. The
proc
essor considered as one of the most power consuming elements in the system so, this
research aims to develop a new method for power management in multicore architecture
which support most of the modern electronics. Power management techniques is an
important field in multicore studies because it must balance between the demanding needs
for higher performance/throughput and the impact of aggressive power consumption and
negative thermal effects. Many techniques have been proposed in this research like
(Dynamic Voltage and Frequency Scaling (DVFS), Asymmetric cores, Thread motion,
variable size cores, core fusion) then after we summarized comparing table which clarifies
the pros and cons of these techniques, we proposed a new technique for power
management in multi-core processors implements the best of these techniques .
Sandwich panels are locally produced with two faces of metal those which cover a
hard adhesive and thick core of polyurethane. The widely Extend of these panels increase
day for day as structural elements imitating the function necessities of the e
ngineering
construction.
The use of those panels as carried structural elements in wall or ceiling structures can
coincide with a submission of their sections materials, especially the two faces to the
change in a nature of the normal stress acted on them due to the alternate of the panel part
bending statically or dynamically when the alternate was produced from the change of
the loading acting direct on it or from the alternate of the live loading on the adjacent fields
of the continuous systems from it.
The evaluation of the sustain capacity and stability of the sandwich elements
consisted of such panels performs depended to the critical stress value leaded to arise of the
wrinkling waves of the compressive face of the panel that it values depended first on the
quality and properties of the production.
The research handled the testing of the sustainability and stability of the local
produced sandwich panel due to the alternate in a nature of it stress statically as a carried
structural element in the structural system built from such panels.
The conclusions of the research showed that this produced panel
follows a linear behavior too even in the case of the change of its bending direction or stress
nature of its face, especially in the loading steps coincided at least to the arising of the critical
wrinkling stress, whereas the value of this stress decreases 40% from its value for the
loading or bending case of the panel in only one direction.
Many images of sea, sea waves and ships is repeated in al-Jahili poetry; sometimes,
such images are formulated partially in one single line of verse or as a quick flicker, if not
such those detailed or circumlocutory images; other times, they occur
as comprehensive
images that embody the poet's collective literary experience, upon which textual symbols
are structured in the form of oppositional or substitutive functions and suggestions.
This piece of research concludes that such maritime images take place in three
contexts: either in the howdahs' or riding camels journeys in which the image of the shiphowdah
or ship-camel appears; or, in love poetry, in which the image of the pearl woman
appears. Or, they may occur while disclosing the poetical self when highly indulged in
rhetoric, semantics and oration, not to mention vainglory, generosity and hospitality
speeches.
In brief, this research attempts to explain the relationship of such images to the
structure of the al-Jahili poem, the poetical self, the human temperament, and his
psychological and cultural horizons.
Therefore in this paper we will present the stability analysis carried out on the
Dwesat dam with vertical core, its high is 33m, the downstream slope of 1V:2.75H and the
upstream slope of 1V:3.0H. Thickness of the vertical core was varied from 1V:
0.25H to
1V:2.0H, and also present the effect of the varied thickness on slope stability for both
upstream and downstream under three design conditions i.e. during and end of
construction, steady state seepage and rapid draw down by General Limit Equilibrium
Method using GeoStudio software.
It was observed from the analysis that by varying the thickness of vertical core of
earth dam, thinner core up to 1V:1.30H gives more stability and further increase in
thickness of core tends to sharp decline in factor of safety for both upstream and
downstream slope under different design conditions.
Background& Objective: This study was carried out to test fracture resistance of crowns with Zirconia
core made by CAD/CAM of two thicknesses, and test the influence of decreasing the core thickness on its
fracture resistance, and study the patterns of failure.
