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Ammonia Removal in Free-Surface Constructed Wetlands Employing Synthetic Floating Islands: Employing synthetic floating islands
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Free water surface constructed wetlands (FSCWs) can be used to complement conventional waste water treatment but removal efficiencies are often limited by a high ratio of water volume to biofilm surface area (i.e. high water depth). Floating treatment wetlands (FTWs) consist of floating matrices which can enhance the surface area available for the development of fixed microbial biofilms and provide a platform for plant growth (which can remove pollutants by uptake).  In this study the potential of FTWs for ammoniacal nitrogen (AN) removal was evaluated using experimental mesocosms operated under steady-state flow conditions with ten different treatments (two water depths, two levels of FTW mat coverage, two different plant densities and a control, all replicated three times). A simple model was constructed as a framework for understanding N dynamics in each treatment.  The model was calibrated using data obtained from one treatment and validated independently for the other treatments. Specifically, we hypothesized that the nitrification and volatilization rate constants are inversely proportional to water depth and proportional to mat surface area. This allowed the relative magnitude of different removal mechanisms to be estimated.  The model was able to predict steady-state concentrations of AN and total oxidized nitrogen (TON) across the different treatments well (values for correlation in the regression between measured and predicted steady-state concentrations and RMSE were 0.88 and 0.40 mg N L-1 for AN, and 0.63 and 1.75 mg N L-1 for TON).  The results confirm that nitrification is the principal AN removal process, with maximum removal occurring in shallow systems with high matrix cover (i.e. a high ratio of biofilm surface area to water volume). Plant uptake was a relatively minor loss process compared to nitrification. Integrated experimental and model-based approach was found to be a useful tool to improve mechanistic understanding AN dynamics in FSCWs and system performance.

 

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Publication Date
Fri Jun 01 2018
Journal Name
Journal Of Accounting And Financial Studies ( Jafs )
The role of Islamic banks in facing the financial crisis in Iraq from 2012-2014
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The purpose of the research is to identify the role of Islamic banks in facing the financial crisis in Iraq for the period 2012-2014, and highlight the various factors that contributed to the emergence of the financial crisis, as well as to identify the problems and challenges facing the Islamic banking business in Iraq and identify the reasons and find appropriate solutions, And the development of treatments to avoid the occurrence of such problems and overcome them. The main findings of the research are as follows,Islamic banks (the sample of the study) were affected by the global financial crisis indirectly, as the financial crisis turned into an economic crisis affecting the real economy, because the activity of Islamic banks is more

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Publication Date
Sun Jan 27 2019
Journal Name
Journal Of Accounting And Financial Studies ( Jafs )
The role of TQM in promoting employee loyalty: Search exploratory In AL- Fedaa Public Company
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       The research aims to determine the principles of total quality management (commitment of senior management, product planning, customer satisfaction, process improvement) and its role in promoting employee loyalty through a sample survey of the opinions of managers in public redemption Company. Which amounted to (45) individuals adoption of the questionnaire as a tool head in collecting data and information and their responses were analyzed using several statistical methods, which included (arithmetic mean, standard deviation, correlation coefficient, and the coefficient of simple regression) depending on the program (spss). The research found a group of the most important conclusions from the presence

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Publication Date
Thu Jun 29 2017
Journal Name
College Of Islamic Sciences
The illusion of al-Tabarsi in the kunya of Abi Jaafar in the interpretation of Majma' al-Bayan
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The persons who Allah Ioves them in the holly Quran

Objectivity Study0Dr 0muyad Turky Ali 

Allah men tioned in Auran the loving of benevolent and who Allah loves him gave him everything 0the loving of benevolent came fist and after that the loving of justice who remove injustice and after that loving purified and in noeent 0After that mentioning loving of Knighters ( fighters )The eharity with money and to clear up the justice and loving purified is a reason of accessing paradise 0 

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Publication Date
Fri Feb 08 2019
Journal Name
Journal Of The College Of Education For Women
Maternal Ambivalences in Kate Chopin's Selected Works
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The question of motherhood seems to haunt the works of Kate Chopin, a
nineteenth century American writer. Though a mother-woman herself, Chopin
gives a paradoxical portrait of motherhood in her works. She implies that
motherhood might be a liberating experience for some women as it is constricting
for others. This paper tackles the paradoxical nature of motherhood in Chopin's
novel, The Awakening and other four short stories. In The Awakening, A Pair of
Silk Stockings and Desiree's Baby, motherhood is depicted as a tool of selfdestruction,
while in Athénaise and Regret, it is a source of life-giving.

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Publication Date
Thu Feb 07 2019
Journal Name
Journal Of The College Of Education For Women
Standarized Basics in Depicting Walis in the Early Age of Islam
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Despite the simplicity that characterized the administration in the era of the Prophet
(peace be upon him), but it put the Muslim community nucleus Administrative Organization
who walked Garret Caliphs (RIP) and came after them, who added to this organization what
they found necessary and dictated by their conditions of life has begun regulation Managing
this appoint leaders and armies of workers on the state and various tribes to spread the Islamic
religion and to teach people the provisions of the Koran and Altfvh in religion and establish
prayer and collect Zakat money so you do not appoint leaders and workers and governors
followed random, but it is in an objective manner takes reasons to meet expectations.

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Publication Date
Sun Dec 01 2019
Journal Name
Journal Of Accounting And Financial Studies ( Jafs )
The role of monetary policy in the aggregate indicator of banking stability in Iraq: An applied research in the Central Bank of Iraq for the period (2010 - 2017)
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The research sought to demonstrate the effectiveness of monetary policy in banking stability by measuring the impact of monetary policy in the composite index of banking stability in Iraq for the period 2010/2017, as the stability of the financial system is one of the main objectives that the Central Bank is keen to achieve along with other objectives to ensure the performance Effective for all economic units, this is what prompted the central banks to give more attention in ensuring the safety, durability and stability of their financial systems, and the increasing interest by the Central Bank of Iraq in the subject of financial stability stems from its responsibility in ensuring a sound and stable financial system. Maintain it and mini

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Publication Date
Wed Dec 13 2017
Journal Name
Al-khwarizmi Engineering Journal
Large Eddy Simulation in Duct Flow
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In this paper, the problem of developing turbulent flow in rectangular duct is investigated by obtaining numerical results of the velocity profiles in duct by using large eddy simulation model in two dimensions with different Reynolds numbers, filter equations and mesh sizes. Reynolds numbers range from (11,000) to (110,000) for velocities (1 m/sec) to (50 m/sec) with (56×56), (76×76) and (96×96) mesh sizes with different filter equations. The numerical results of the large eddy simulation model are compared with k-ε model and analytic velocity distribution and validated with experimental data of other researcher. The large eddy simulation model has a good agreement with experimental data for high Reynolds number with the first, seco

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Publication Date
Wed Jul 01 2015
Journal Name
Al–bahith Al–a'alami
Building the News Agenda in Iraqi Newspapers and Patterns of Bias in their Sources
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News are considered the most press arts that supply the target audiences with daily information and events happened inside and outside society since it is formed by depending on its resources which have a deep relation with formal corporations to gain their satisfaction in order to support their authority and spreading their domination by using mass media in editing their viewpoints and achieving wide acceptance among public opinion. In the field of technological development and changing in the fields of politics, society, culture, economics etc. inside Iraqi society and democratic transition help to convert news agenda from independent variation to a fellow variation while in the past the variation of mass media was the independent one

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Publication Date
Sun Mar 19 2023
Journal Name
Journal Of Educational And Psychological Researches
Cognitive Absorption and E-learning Readiness in Learning Digitization among Preparatory Stage in Qatar
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Abstract

The study aims to examine the relationships between cognitive absorption and E-Learning readiness in the preparatory stage. The study sample consisted of (190) students who were chosen randomly. The Researcher has developed the cognitive absorption and E-Learning readiness scales. A correlational descriptive approach was adopted. The research revealed that there is a positive statistical relationship between cognitive absorption and eLearning readiness.

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Publication Date
Tue Jul 11 2023
Journal Name
Journal Of Educational And Psychological Researches
The Effect of The Round Robin Strategy in Logical Thinking the Fourth in Chemistry
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The study aims to identify the impact of the round-robin strategy on the logical thinking of fourth-year middle school students in chemistry. Two groups were employed:  an experimental group consisted of (30) students who were taught according to the round-robin strategy, and the control group consisted of (30) students who were taught according to the traditional method. The researcher adopted the experimental design with partial control by preparing the visual thinking test tool, which consists of (20) multiple-choice items, it was applied as a post-test on the research sample. The result showed that there was a statistically significant difference in favor of the experimental group, which was taught according to the Round Robin s

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