To produce Zinc Oxide NanoParticles, ZnO-NPs, different methods can be used. However, the utilization of Liquid-Phase Pulsed Laser Ablation, LP-PLA, methodology of three distinct environment of aqueous using pure zinc plate will be one of the approaches for this job. Thus, in this work, concentrates on the influence of the results after employing some changes on the environment in other words, the influence of the NPs size and/or the NPs availability/appearance. Cetyltrimethylammonium Bromide, CTAB, is one of the three surfactants that have been used in the water-based solution. That is, the Sodium Dodecyl Sulfate, SDS, besides the Distilled Water, DW, the three surfactants will be ready when the molarity of the DW is around 10− 3 M. The specifications of the employed laser are: 800 nm as a wavelength, radiating with pulses of 130 fs as a duration, which will be repeated every 1ms (1 kHz). That is, with these laser settings, the femtosecond Ti: Sapphire laser was generated to irradiate the zinc target, which attain ablation inside the aforementioned solution. Hence, according to the sort of the surfactant that has been employed in the experiment, different shades were introduced in the resultant solutions, this reveals that the NPs are appeared with various dimensions. The shadow that has been captured is the white color which ranges from foggy to milky. Note that in the experiment was utilized the UV-VIS spectroscopy test in order to evaluate and characterize the ZnO-NPs that were produced. The creation of discrete sizes of ZnO-NP was verified by the surface plasmon resonance (SPR) spectra, which displayed separate absorbance peaks. For instance, the CTAB surfactant was at 207 nm, for the SDS, it was at 212 nm, while for the DW environment, it was at 218 nm. Accordingly, it was found, using the Scanning Electron Microscopy, SEM, captured images of the created nanoparticles, that the CTAB surfactant introduces the most regular/small sizes with respect to that produced using the SDS, which gives uneven sizes and shapes. Furthermore, the NPs generated in DW formed agglomerations with diameters in the micro range and exhibited a combination of spherical and hexagonal forms. The production of ZnO-NPs was confirmed using Fourier Transform Infrared Spectroscopy (FTIR) analysis, which demonstrated absorption readings in the 435–445 cm− 1 range.
The author addresses the issue of the linguoculturological component in the process of teaching Russian to Arabic students, focuses on the peculiarities of the national character of students. The author also refers to the long-standing ties of Russian and Arab cultures, thus emphasizing the relevance of this aspect for the current state and situation of the Russian language in Arab countries.
Автор статьи обращается к вопросу лингвокультурологической составляющей в процессе преподавания русского языка арабским студентам, останавливается на особенностях национального хара
... Show MoreThe added value of internal audit greatly contributes to adding value to the institution, but most departments of economic units in Iraq neglected the role of internal audit and the added value that can be achieved by those institutions, since the term added value of internal audit is a relatively vague term from the premise that what cannot be measured is difficult Determine it, and perhaps descriptive standards for it is the extent of compliance with international auditing standards (IIA).
The research aims to study the procedures and results of auditing to verify that they have given an added value to the audit with a positive impact, develop its aspects and research, identify deficiencies for the audi
... Show MoreObjective: To suggest a weighted measure to diagnose the reasons for the low student success ratios in mathematics concerning the third grade of intermediate schools in light of components educational system represented by: [Students, Teachers, Curriculum, and Environmental reasons (others reasons)] assuming differentiated and interrelated components, Also the effectiveness forming of these components according to the gender variable. Methods: Data collection tools were prepared by constructing two questionnaires for each of (Students and Teachers), which included a number of items that involved some domains for studied components of educational system, which demonstrated a high level of validity and reliability in the pilot study, in addi
... Show MoreThe purpose of this resesrh know (the effectiveness of cooperative lerarning implementation of floral material for calligraphy and ornamentation) To achieve the aim of the research scholar put the two zeros hypotheses: in light of the findings of the present research the researcher concluded a number of conclusions, including: -
1 - Sum strategy helps the learner to be positive in all the information and regulations, monitoring and evaluation during the learning process.
2 - This strategy helps the learner to use information and knowledge and their use in various educational positions, and to achieve better education to increase its ability to develop thinking skills and positive trends towards the article.
In light of this, the
DBNRSK Sayed, Journal of Strategic Research in Social Science (JoSReSS), 2020
This study aimed to statement jet stream and its impact in the anti-cyclone affecting the climate of Iraq. Through the use of simple correlation coefficient ( Pearson ) that there is a very strong relationship between high- Siberian and both of the jet stream especially during the winter or over the stations of North . Therefore we, observe the relationship be significant in most of the winter months , spring and autumn . Statistically significant , but are different between station and another station , while the study come to another Anti-ciyclon have a real ,significant and statistically relationship corrclation . But this relationship is less than which found in are much less it with the Siberian high , it depends on the type of stat
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