Iraqi Journal of Science and Technology

إلفا-املييز, المركبات الفينوليه, نبات السدر, مستخلص النبات

The study examined the effect of thunderstorms on increasing the concentration of Tritium (3H) in rainwater for periods of time within the 2018-2019 rain season, as it is considered one of the most important environmental radioisotopes used in hydrological studies, specifically in estimating modern water ages. Measurements were performed with a liquid scintillation counter. The Tritium concentration values showed a noteworthy variation in their values. The highest values were recorded in February and March of 2019 (8.57 and 11.71 TU) respectively. While the results recorded during December 2018 was 4.48 TU and for January 2019 was 3.22 TU, these were the least concentration. The reason for the increase in the values of Tritium concentration is due to the fact that the samples were taken from the rain that was accompanied by thunderstorms and the relative rise in temperatures in the months of February and March of 2019, as they ranged between (20-22 ° C) compared to the temperatures that ranged between (8-11 ° C) during months December and January of 2019 respectively, and the rain was not accompanied by thunderstorms. The distribution of rain samples on the Local Meteoric Water Line was studied by measuring the concentrations of stable isotopes (Deuterium and Oxygen-18) and found that their distribution within the local and global meteoric water line (LMWL) and (GMWL). The importance of this research lies in studying the effect of thunderstorms on the concentration of an isotope Tritium in rainwater, as it is considered one of the main sources for this isotope.

Domestic microwave ovens do not contain features for detecting material state inside the oven. the state change or lack in material required automatic switch off the microwave oven to overtake the overheating and oven damage. Hence, this research aims to provide a new concept for automatic control the microwave oven based on measurement of microwave power leaked to outside of oven. In this research the microwave oven was linked to a spectrum analyzer and computer via physical media and computer programs. The microwave oven circuit was developed to accommodate the new automatic control system. Computer code was prepared to read the measured energy and automatically switch off the microwave oven. The experiments repeatition confirmed the results with a percentage of error of about (5.7%). The results showed the success of the new concept that confirmed the possibility of automatic control of the microwave oven based on leakage measurement of the microwave power that changes according to the material state inside the microwave oven.

Breast carcinoma is one of the most common types of carcinomas worldwide in female women of all ages according to world health organization. The current study was aimed to evaluate whether the Prostate Specific Antigen (PSA) protein level could serve as a biomarker for breast carcinoma. In this study, Immunoeznymometric assay was performed to evaluate PSA protein level of 60 women’s; 40 women’s with breast carcinoma and 20 healthy women’s (without carcinoma) was used as control group. The mean age was 46.3 years; age range (28 to 64 years). The Mean PSA protein level was 0.324 ng/ml, SD was 0.387, P-value was 0.330 > 0.05. This study is the first study to report no high expression of PSA protein was observed in Libyan women’s who has breast carcinoma, and there was no association between PSA proteins with breast carcinoma. This indicates that the PSA protein has no important role as an indicator for breast cancers patients from women’s and cannot be biomarker for breast carcinoma.

This research investigation in airflow characteristics and thermal comfort inside a lecture room contained load under cooling by a ceiling air conditioner of 4-way cassette with 45° discharger angle, and ventilating system. A modified version of a three-dimensional software FLUENT was used to simulate the complex flow inside the room. The computational program was validate by comparing the numerical results with experiential result of temperature and air velocity measurement. The comparison showed a good agreement. The results showed that the ceiling air conditioner with mixing ventilation system is more effective in achieving the airflow mixing, temperature distribution, and thermal comfort as recommended by interval environment condition of ANSI/ASHRAE Standard 55-2010.

This study was carried out in the Greenhouse at Al-Tuwaitha Experimental Station (20Km Southeast of Baghdad), Agricultural Research Directorate. The experiment was laid out in Completely Randomized Design (CRD) with three replicates for each experimental unit. The results showed superiority of fertilizer in S1S2 (nutrient solution+ megafol) treatment was significantly increased tuber content of amino acids including Glutamine, Asparagine, Alanine and Arginine (1.748 ,0.689, 0.793 and 0.895 mg.100g-1), respectively in comparison with the control treatment S0 which gave 0.447, 0.367, 0.320 and 0.371 mg. 100 gm-1 respectively. As well as, significantly increase rates of length, diameter, fresh and dry weight reached 32.89 cm, 0.193 cm 19.54 gm and 8.57 gm) of the root system, respectively in comparison with the control treatment S0. This study shows the possibility of using nutrient solutions with megafol in sand culture to increase amino acids in tuber of potato, as well as to accelerate root growth which may increases their nutritional value.

In this study nine vegetation indicators and Landsat 8 satellite images for the OLI sensor were used to monitoring the rice yield and adopt two scenes with two different dates, the first at the beginning of cultivation and the second at the growth stage vegetative. The results showed that the best indicator for estimating the rice crop area is Rice Growth Vegetation Index (RGVI), where the lowest error rate was recorded 4.3% for the estimated rice crop area of 4503.5 Hectares compared to the reference data of the Iraqi Ministry of Planning for 2018, which amounted to 4316 Hectare. As for the Ratio Vegetation Index (RVI) and Normalized Difference Vegetation Index (NDVI) indicators, in terms of percentage of error, they were 6.9% and 9.4%, respectively, and the values were close to the reference data. While the Infrared Percentage Vegetation Index (IPVI) and Triangular Vegetation Index (TVI) indices recorded the highest error rates against the reference data, which were 30.3% and 26%, respectively.

The banking system relied on many decisions and is usually made manually, because of the large volume of data, the long time it takes to make a decision, and the possibility of a major error. Banks are now turning to data mining tools to predict payment delays, detect illegal transactions, record and approve credits, and more. In this paper, the researcher adopts the Improved Agglomerative Hierarchical Clustering of the classification of ethnic banks based on their annual profits for the period (2012-2015), to enable the investor to make the decision to invest his money in a bank that achieves great profits. The original algorithm was compared with the improved algorithm, and the results showed an improvement in execution time by 35 %.