Volume 7, Issue 2, Spring 2007, Page 1-229


PHOTOCATALYTIC CRACKING OF n-NONAN BY SENSITIZED TITANIUM DIOXIDE

S. A. Naman; S. M. Aliwi; A. A. Al-Fatlawy

journal of al-qadisiyah for pure science(quarterly), Volume 7, Issue 2, Pages 142-154

The photocracking of n - nonane hydrocarbon (C9H20) by sensitized TiO2 was investigated. High pressure Hg-lamp with metal halide additive (Type 150 Z2 Huna Immersion Lamp) was used as irradiation source (200-600) nm. in a thermostatic vessel ( 250 ml.) at 298 K. Many parameters on the photocatalytic cracking processes has been explored in order to find the optimum conditions for this sensitized photocatalytic processes such as : the concentration of TiO2, the concentration of riboflavin sensitizer deposited on TiO2 , sensitized TiO2 particle size , the effect of flow rate of air , the effect of riboflavin sensitizer was studied. Also the effect of temperature on photocracking of n- nonane by sensitized TiO2.
Gas chromatographic technique using FID was used to identify the photocatalytic products of hydrocarbons . According to the experiments results obtained , reaction mechanisms of the photocracking processes of n- nonane by sensitized TiO2 are suggested.

Synthesis and Structural Studies of Some Transition Metal Complexes Using 2-[(5΄- Chloro-2΄-methyl phenyl) azo]-4,5-diphenyl imidazole (ClMPAI) as New Ligand

H. N. Kudhair; Methak. S. Mohammad; Abid Allah . M. Ali

journal of al-qadisiyah for pure science(quarterly), Volume 7, Issue 2, Pages 133-141

Some Co(II), Ni(II), Cu(II), Zn(II), and Pd(II) complexes with new aryl azo-4,5-diphenyl imidazole (ClMPAI) as ligand were synthesized and characterized spectroscopically (IR and UV-Vis) along with elemental analysis, molar conductance and magnetic susceptibility measurements.

GEOMETRIC IMAGE SCALING USING FRACTAL TECHNIQUE

Dr. Hussian Muhyi Ali Al-musawi

journal of al-qadisiyah for pure science(quarterly), Volume 7, Issue 2, Pages 196-206

In this paper, we propose a method to re-size images using fractal technique instead of the traditional one in order to obtain faster, simpler, and more general algorithms. We develop a simple and practical implementation procedure that uses the iteration function system (IFS) which widely used in image compression. Experiments shows that the proposed algorithm gives an acceptable results compared with the standard interpolation method.

On Certain types of totally disconnected fibers

Khalid Shaiya Khair allah

journal of al-qadisiyah for pure science(quarterly), Volume 7, Issue 2, Pages 210-218

In this work , we give the definitions of certain types of maps which have totally disconnected fibers and
the study of the properties of composition and restriction of each type. Also, we study the relation between
them. These definitions are novel in the present time at the best of our knowledge.

Phospholipase activitv in mycelia of ASPergillus flavus

M. A. Aouda

journal of al-qadisiyah for pure science(quarterly), Volume 7, Issue 2, Pages 155-163

A strain of Aspergillus jlavus was taken and cultivated in Sabouraud Deatrose agar, after that it transfered to another media contains Nutrient agar with egg Yolk which contain the lecithin as a phospholipid substrate.
For known enzyme activity, this pathogenic fungi transfered to liquid media for growth on it. Enzyme activity by using technique of (TLC) to know the producing fatty acids by using standard material from this acids was studied.

ON CENTRALIZERS ON SOME GAMMA RING

Rajaa C .Shaheen

journal of al-qadisiyah for pure science(quarterly), Volume 7, Issue 2, Pages 219-229

Let M be a 2-torsion free  -ring satisfies the condition
x y z=x y z for all x,y,zM and  ,   . In section one ,we
prove if M be a completely prime -ring and T:M→M an
additive mapping such that T(a a)=T(a) a (resp., T(a a)=a
T(a ))holds for all aM,  .Then T is a left centralizer or M
is commutative (res.,a right centralizer or M is commutative)
and so every Jordan centralizer on completely prime  -ring M
is a centralizer .In section two ,we prove this problem but by
another way. In section three we prove that every Jordan left
centralizer(resp., every Jordan right centralizer) on -ring has
a commutator right non-zero divisor(resp., on -ring has a
commutator left non-zero divisor)is a left centralizer(resp., is a
right centralizer) and so we prove that every Jordan centralizer
on  -ring has a commutator non –zero divisor is a centralizer .

Polypyrrole conductive films obtained electrochemically on polycarbonate coated platinum electrodes

Samir Mahdi Al-malky

journal of al-qadisiyah for pure science(quarterly), Volume 7, Issue 2, Pages 172-180

Polypyrrole is prepared by electrochemical polymerization of pyrrole on platinum electrode coated polycarbonate (PC) .This method produced a homogeneous conducting polymer with electrical conductivity, 6 S/cm .The electrical conductivity is measured by four-probe method The electrical conductivity is measured as a function of current density, concentration of supporting electrolyte and time of polymerization .The effect of ammonia solution on the conducting is also investigated

The Investigation of color removal by Photocatalytic and Chemiicall Oxiidattiion of Red Reacttiive Texttiille Dye

Hassan A. Habeeb

journal of al-qadisiyah for pure science(quarterly), Volume 7, Issue 2, Pages 96-107

The photocatalysis and other advanced oxidation processes (AOPs) have been used to investigate the degradation of red reactive textile dye in aqueous solutions via exposing to direct sun-light for 24 hours in direct sun light.
Results showed that photocatalysis (TiO2 and ZnO suspensions) processes were more effective than photochemical (Fe+2/H2O2) and H2O2 and chemical (Fe+2/H2O2) oxidation. The best value of degradation reached 75% mineralization, which was achieved with ZnO / dye suspension (1 gm/l). The concentration of dye was measured in the ëmax of UV-visible spectrum of dye (715nm). The work involves the studying of kinetics of photodegradation of dye by using UV light emitting from medium pressure mercury lamp at 365 nm and 25Co in the stable light intensity and presence of TiO2 and ZnO catalysts, it has been found that the photodegradation constant of aqueous solution of dye (100mg/l) was 2.01x10-4sec-1 and 1.82x10-4sec-1 respectively. It was also found the initial rate of photodegradation of dye increases as its initial concentration increases which was higher in the presence of TiO2.The adsorption constant and reaction rate constant of dye over TiO2 and ZnO in same conditions was (25.2mg/l and 2.63x10-2 mg/l.s) for TiO2 and (18.2 mg/l and 2.22x10-2 mg/l.s) for ZnO respectively.

Anatomical Study of the genus Cichorium L. (Compositae) in Iraq

R.M.H.AL-Na; amani; A.K.AL-Bermani; T.K.Merza

journal of al-qadisiyah for pure science(quarterly), Volume 7, Issue 2, Pages 1-15

The present study comprises a comparative anatomical study of the species of the genus Cichorium L. in Iraq . Epidermises of the leaves , involucral bracts and stems , venation of leaves and involucral bracts in addition to transverse sections of stems were studied and the taxonomic importance of each character and it΄s variation was discussed .

Evaluation the effeciency of bio-cidal Fluoramil in the control of infection by fungus Pythium aphanidermatum(Edson)Fitz.

Sami Al-Jumiley; Sanaa Ghali Jabur; Ali Jabir Al Ashur

journal of al-qadisiyah for pure science(quarterly), Volume 7, Issue 2, Pages 46-59

The study was coducted to evaluated to efficiency of control agents (bio–cidal Fluoramil) and chemical control agent ( Ridomil MZ–50) to control seed decay and damping–off of wheat seedlings caused by Pythium aphanidermatum .
The study has shown that bio-cidal Fluoramil compltly inhibited the pathogenic fungus growth in culture P.D.A. medium(% 100).The same result was given when the chemical fungicide Ridomil MZ – 50 was mixed with culture medium P.D.A.
The Biological experiment has shown the positiveness of bio–cidal Fluoramil in the control of Wheat crop infection by the fungus P. aphanidermatum, the increase of growth markers through increasing germination percentage to(89.7 %)and the decrease of post-emergence damping-off seedlings to (0.6%) compared with control treatment (pathogenic fungus only) which were (32.6%) and (24.9%) respectively.
The markers growth has shown that the bio – cidel Fluoramil significantly effects the dry weight of shoot that reached (0.522) gm at same time these markers decreased to (0.05) gm in the control treatment (pathogenic fungus only) .

A study of Nuclear Structure of Os184 Isotopes by the Interacting Boson Model-1

Ali Abid Abojassim Al-Hamadawy

journal of al-qadisiyah for pure science(quarterly), Volume 7, Issue 2, Pages 181-189

In this research , characteristics of energy levels and reduced electric transition for Os184 isotope
have been studied using interacting boson model-1. Also , the nucleus shape was determined
through studying potential energy surface ,the square of rotational energy and the moment of inertia
were calculated. In the present research ,was averment the spin and parity for some energy levels
which not determined practically , where the levels (1.6980 , 1.6315 , 1.6132) MeV with spin and
parity ( 
3 2 , 
5 4 and 
2 6 )respectively .According to the (IBM-1) was found that Os184 isotope
involved in transition region O(6) to SU(3).

Test effect of some plant powders on cowpea beetle Callosobruchus maculatus Fab. (Coleoptera :

Dr. Omar kh. Ruman; Dr. Aied N. oueed; Malath A. Hamed

journal of al-qadisiyah for pure science(quarterly), Volume 7, Issue 2, Pages 16-21

The study was carried out in the laboratories of state board for Agric. Plant Protection Dept. and Plant Production Dept. Tech. Colle. Al- Mussiab / Baghdad and Babylon during year 2001 . The study aimed to evaluate the efficacy of plant powders ( Nigella sativa , Foeniculm vulgare and Cyperus rotundus ) against cowpea beetle C. maculatus . 1gm . powder / 250 gm . of seeds was used . Results showed that Cyperus rotundus plant powder was the most effective powder in average of eggs / female , emergency of adult insect numbers and percentage of production of insects with averages reached 82.50 eggs / female , 55.00 insect / female and 66.50 % respectively . F. vulgare plant powder was lowest effective powder with the following average 90.60 eggs / female , 66.60 insect / female and 73.60 % respectively too . While N. sativa plant powder was the most effective powder in reducing damage of this insect to 29.69% and C. rotundus plant powder was the lowest effective in this site 34.39 % . On the other hand all the plant powders have no effect on the seeds germination percentage .