In this research, we dealt with the study of medicinal and aromatic plants and methods of their use in medication, where the research was divided into three chapters. The third chapter deals with the history of herbal treatment and the most important
areas and techniques of using medicinal and aromatic plants. We also touched on the methods of using medicinal and aromatic plants. Finally, examples of some plants and their spectral treatment were presented.
In this work, the effect of electric permittivity and thin layer thickness on the energy
gape has been studied in a system consisting of three thin layers by means of finding the
self action potential of charge carrier located in the central layer
of this system. Then, the
self action potential energy has been found by solving Schrödinger equation at the
extracted potential. This study shows that energy gape of PbI2 decreases with layer
thickness while it increases/decreases according to comparison between dielectric
permittivity values of central layer and counterparts of two neighborhood layers on both sides.
This research is a theoretical study for the scattering mechanism of the charge carrier in the transport tunnels of system consisting of metal-insulator- semiconductor (MIS)- When the insulator is polarized where the conductivity of surface for semic
onductor polarization behavior due to charge transfer during interfaces. The aim of this research is to investigate the effect of self-action and polarization potentials on the ground state of electron- polaron in semiconductor layer by means of is olating the Schrodinger equation and discussion of some special cases such as the potential is triangular form (case of contact metal – semiconductor).
In this research, the electrochemical reduction of hydrogen process
and the factors affecting the reduction potential have been studied
in this research. The effect of acid concentration on the shifting of
the volt-ampero-metric curves that expres
s the reduction process
and so its effect on both the reduction potential value of hydronium
ions on drop mercury electrode, and the speed value of reduction
reaction was studied. Then an amount of pyridine as organic
substance was added to a specific volume of acid in a specific
concentration to figure out the relationship between the amount of
pyridine added and the cathode current of the reaction to find out
the effect of added pyridine on the reaction speed and the
relationship between the amount of added pyridine and the
hydrogen reduction potential.
Pyridine was added to amount of acid to study the effect of
theaddition on the hydrogen reduction over potential.
The manifestation of the self-action potential for charge carrier in system consisted of three spatially heterogeneous layers is investigated theoretically. The expressions for the self-action potential energy of a test charge placed in a central la
yer of the three-layer structures. The self-action potential energy of electron- hole and Wannier – Mott exciton are calculated numerically. The self-action potential energy of electron- hole and Wannier – Mott exciton are plotted as a function.
We present a theoretical model for studying the oscillations among two-level quantum system when an interaction term is considered:
First, we present the two-level quantum system with a symmetric double square potential well in interaction, in one d
imension x, then we find the eigenvectors and the eigenvalues for this system by solving the stationary Schrödinger’s equation.
Second, we proved that a non perturbative approach can be conveniently used to write the Hamiltonian operator and to derive the Rabi’s equation for this system, directly applying the time evolution operator to the initial state of the system.
The experiment was carried out at the research stations of Salo in Deir-
Azzor agricultural research center and Tel Sandal in Idlib agricultural
research center. Land plots infected previously with sesame wilt disease,
Macrophomina phaseolina (Tas
si) Goid, and Fusarium oxysporum Schlecht
were cultivated for two growing seasons (2007 and 2008) with medicinal
species such as, Cumin (Cuminum-sativum), Black seed (Nigella sativa L.) and
Fenugreek (Trigonella foeniculum L.) and another infected plot was left blank
as a control plot. Zuri, a local sesame variety, was cultivated in all plots for two
growing seasons (2008 and 2009).
Results showed that the control plots had the highest percentage of infected
sesame plants compared to the lowest percentage found in those plots that had
been cultivatd previously with Black seed, Cumin, and Fenugreek. Plots
cultivated previously with Black seed gave the highest sesame yield and
followed by those plots of Cumin. The The average percentage of germination
of sesame, as a phenological growth indicator, was increased in those plots
planted before with Cumin and the average number of capsules per plant was
increased at both locations by 36.75 capsules after Black seed in comparison
with the control.
