This paper deals with the security aspect of electronic voting (e-voting) by introducing quantum key distribution (QKD) to the e-voting process. This can offer an extremely high level of security that can be very beneficial for some significant e-voting tasks. Moreover, a framework for the integration of the QKD with the e-voting system is proposed. The Helios voting system, which is considered as one of the open-source and major voting systems, has been chosen for this integration. Investigation of the main design aspects of building a QKD-based e-voting system has been done. Thus, the expected advantages and limitations of the proposal are discussed and analyzed.

In this paper, it has been dealt with basic Gompertz distribution. The maximum likelihood, Bayes methods of estimation were used to estimate the unknown shape parameter. The failure rate (hazard) function with the least loss was found using different priors (Gamma, exponential, chi-square and triple prior) under symmetric loss function (Degroot loss function). A comparison was made about the performance of these estimators with the numerical solution that was found using expansion methods (Bernstein polynomial and power function) which was applied to find the failure rate function numerically. The proficiency test of the proposed methods was conducted with a number of test examples. Finally, for computations the Matlab (R2015b) is used.

The exchange rate is of great importance as it is a link between the local economy and the global economy, and there are many factors that determine the trends of the Iraqi dinar exchange rate against the US dollar. And measuring the extent of the impact of each factor, and the results have shown that the most affecting factor in the exchange rate is the annual inflation rate, where its impact ranges between (1-4) times that of revenue, surplus or deficit, and the interest rate, which shows a clear difference in that effect

The purpose of this study is to present a new connection of the famous Runge-Kutta methods by using more than one old technique and obtain a new method, which has acceptable results for solving Initial Value problems.

The current study aims to study biodegradation for plastic waste as one of the ways of treatment of plastic pollution by using isolated bacterial isolates from plastic waste collection and landfill areas in the city of Ramadi and surrounding areas during different periods. Diagnosis of bacterial isolates was performed based on phenotypic and physiological tests as well as testing on the VITEK 2 system, isolates were selected that go back to the type Pseudomonas sp. and Streptomyces sp. Bacterial isolates have been studied for its ability to breakdown plastic waste used in the manufacturing of drinking bottles and shopping bags by collecting samples of plastic waste and assured they are washed and sterilized perfectly. Another experiment was conducted through a second decomposition (A carbon deficient) medium as well as the second decomposition medium contains some chemicals that are thought to help accelerate the process of decomposition. Results showed that the highest polyethylene breakdown occurred due to isolate P1 (Pseudomonas fluorescens) by the degradation rate 8.83% on the first decomposition medium and 30.5% on the second decomposition medium, while the degradation rate to isolated P4 (Streptomyces) was 4.83% on the first medium and 19% on the second medium. The genetic study results showed existence of the enzyme PETase gene on Pseudomonas fluorescens chromosome in an expected size 119bp and it was absent on plasmid.

In this work, the concentration effect of mixed tin dioxide and zinc oxide on optical properties of titanium dioxide thin films was studied. Thin films were prepared by using spray chemical pyrolysis technique on glass substrate at 350 ?C. The optical results revealed a weak optical transmittance for Un-doped TiO2 at the end of ultraviolet spectrum followed by an increase, more than 48%, at the near IR spectrum. TiO2 thin films revealed more transparent with blue shift in the absorption edge when the SnO2-ZnO mixed increased. A significant decrease in the absorption coefficient with increasing the mixed of SnO2-ZnO. According to the results of the electronic transition of TiO2, thin films have direct and indirect energy gap, about 3.2 eV and 2.11 eV, respectively. An increase in both types of energy gap was observed with the mixing concentrations of SnO2-ZnO increase. In addition, a significant decrease also was in the refractive index and extinction coefficient with the increasing SnO2-ZnO concentration.

A composite materials were prepared using a polymeric blend of epoxy resin and unsaturated polyester as a matrix material, and using a nanoceramic powder Lead Zirconium Titanate as a reinforcement material in different adding ratios( 2wt % & 6wt % ). Impact strength, surface hardness, thermal conductivity and solutions absorption tests were carried out for the polymeric blend and composite samples. The pre-immersion results showed that adding the ceramic powder to the polymeric blend improved the surface hardness, increased thermal conductivity as well as reduced impact strength. Immersing the samples in H2SO4 acid and kerosene caused of decrease in impact strength and surface hardness as well as increase in thermal conductivity. It was also noticed an increase in the absorption rate of acid and kerosene solutions in a manner proportional to the duration of immersion.

This research includes the preparation of polymeric composites by (Hand lay-up method) of unsaturated polyester resin as a matrix material and (iron, copper) particles as strengthening materials with different weight ratios (5%, 10%, 15%, 20%). The hardness and impact strength properties are studied before and after immersion in (NaOH) solution and (HCl) solution at a normality of (0.3N) and for a period of one immersion (30 days). The results showed that the hardness and impact values increased with the increase in the percentage of iron and copper before immersion, after immersion, that hardness and impact strength values increased with increasing the iron and copper ratio of the compounds For all samples, but their value was lower than in normal conditions. And also these values in the (HCL) solution were lower than the (NaOH) solution.

An experimentally observations of chaos synchronization have been investigated between two optically coupled laser diodes. Two schemes of optical injection, bidirectional and unidirectional optical injections have been used. One of the two lasers MLD exhibits optical chaos due to external optical feedback by fiber mirror and the other laser diode SLD exhibits optical chaos by optical injection from the first one. The chaotic dynamics of both lasers were a function of laser diodes drive current. Synchronization and Anti-synchronization between two coupled laser diodes have been observed, and ensured by different measurements like time series matching ,correlation diagram(phase form)of amplitudes of coupled chaotic signals ,spectrum components coinciding of coupled chaotic signals, and coherence have been used for both injection schemes.

: A number of physical and chemical ambient water characteristics of the Tigris and Euphrates rivers were studied on a monthly basis over the year (2011). Samples through 61 sampling station was collected, which distributed by 39 stations along the Tigris river and 22 station along the Euphrates river. Samples collected were analyzed to find a number of variables. The variables measured include cations group (Ca, Mg Mg, Na Na), anions group (Cl, SO4), nitrate NO3, phosphate PO4, total dissolved solids TDS, in addition to measuring pH.Data were analyzed statistically to extract the results. Results showed that average concentrations of calcium ions to the Tigris River 69 mg /L, and the Euphrates River 139 mg /L. The average concentration of magnesium ions of the Tigris River is 34 mg /L, while of the Euphrates River is 67 mg /L. Average concentration of sodium ions of the Tigris River is 58 mg /L, and the Euphrates River is 247 mg /L. Average concentration of sulfate ions of the Tigris River is 154 mg /L, and the Euphrates River is 425 mg /L. Average concentration of chloride ions of the Tigris River is 98 mg / L, and the Average of the Euphrates River is 375 mg /L. Average concentration of nitrate ions of the Tigris River is 3.48 mg /L and the same average value registered to the Euphrates River. Phosphate ions concentration rate of the Tigris River is 0.24 mg / L, and the Euphrates River is 0.20 mg /L. Average concentration of total dissolved solids of the Tigris River is 530 mg / L, while the Euphrates River is 1419 mg /L. Average pH value of the water for the Tigris River is 7.6 and 7.8 for Euphrates River. Water quality of the Tigris and Euphrates rivers varies from one section to another. Water quality is better in the upstream sections of the rivers. There is a general trend to increase salinity and degradation of water quality whenever river stream Turn south because of decreasing water level and accumulation of pollution loads. Water quality of the Tigris generally better than the quality of waters of the Euphrates, where many tributaries supply Tigris river with freshwater inside Iraqi territory while Euphrates River exposed to different effluent inside Syrian territory before entering the Iraqi border. Recorded values of most variables measured of the Euphrates river greater than the values of Tigris River at the beginning of the entry of the rivers into the Iraqi border. Euphrates River compared with the Tigris River was exposed to different effluent discharges especially agricultural discharge in the central and southern regions in addition to changing hydrological conditions.

The purification and Extracts was vehicles Lawsone , Vasicine and Nicotine of medicinal plants henna Lawsonia inermis , Halk Al-Sabea Al-Shuejairy Adhatoda vasica and tobacco Nicotiana tobacum by some diagnostic devices and Methods IR, UV, TLC, Melting point and some chemical tests have been studying the effect of their effectiveness in economic life insect larvae house fly Musca domestica and Culex quinquefasciatus mosquitoes and rusted flour beetle Tripolium castneum and calculate the Rate of kill cumulative , non-cumulative effectiveness of these vehicles, and results showed superiority Vasicine compared to the rest of other vehicles whether cumulative effect Or non- cumulative night in the effectiveness Nicotine then Lawsone results also indicated that the most vulnerable phases was the first phase larvae and all transactions while the fourth phase larvae of mosquito Culex quinquefasciatus , Tripolium castneum are less affected , and the third phase larvae of Musca domestica are the least affected, and the results showed that Distortions appearance in the larval treatment with prolonging the number of days in the larvae phase

: In this paper the drag perturbation for the law orbit are studded ,Koll-method is suitable to used hear, equation of motion it's solved by numerical integration ;Rang-Kota-method was used ; to find the components of velocity and position and find the orbital parameters with perturbation .Study the effect of drag perturbation on the position , of satellite with time and on perigee , apogee , a ,e and age of satellite, Study the variation of satellite position and age with height we can increase the age of satellite to 40 times by increase the perigee height only 2 times, and by decrease A/m ratio and eccentricity also by rotate in the direction of the earth rotate.