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alkej-509
Prediction of Equilibrium Mixing Index and Optimum Mixing Time for Three solid materials in Fluidized Column
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     Equilibrium and rate of mixing of free flowing solid materials are found using gas fluidized bed. The solid materials were sand (size 0.7 mm), sugar (size0.7 mm) and 15% cast iron used as a tracer. The fluidizing gas was air with velocity ranged from 0.45-0.65 m/s while the mixing time was up to 10 minutes. The mixing index for each experiment was calculated by averaging the results of 10 samples taken from different radial and axial positions in fluidized QVF column 150 mm ID and 900 mm height.

     The experimental results were used in solving a mathematical model of mixing rate and mixing index at an equilibrium proposed by Rose. The results show that mixing index increases with increasing air velocity and mixing time until it reaches an optimum value then decrease to an equilibrium value. The results also show the dependency of the mixing index on the particle size of the tracer component.

      The statistical analysis of the obtained theoretical mixing index versus the experimental mixing index shows that the standard error is 0.92 % (about 1 %) with the correlation coefficient of 0.9857 and the total residual of 0.002 for the ninth observation of the mixing index (theoretical versus experimental) over 95% confidence level.

 

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Publication Date
Wed Sep 01 2021
Journal Name
Iop Conference Series: Earth And Environmental Science
Time Dependent Behavior of Engineered Cementitious Composite Concrete Produced from Portland Limestone Cement
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Publication Date
Wed Jan 20 2021
Journal Name
Earth And Environmental Science
Time Dependent Behavior of Engineered Cementitious Composite Concrete Produced from Portland Limestone Cement
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Conventional concretes are nearly unbendable, and just 0.1 percent of strain potential makes them incredibly brittle and stiff. This absence of bendability is a significant cause of strain failure and has been a guiding force in the production of an elegant substance, bendable concrete, also known as engineered cement composites, abbreviated as ECC. This type of concrete is capable of displaying dramatically increased flexibility. ECC is reinforced with micromechanical polymer fibers. ECC usually uses a 2 percent volume of small, disconnected fibers. Thus, bendable concrete deforms but without breaking any further than conventional concrete. This research aims to involve this type of concrete, bendable concrete, that will give solut

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Publication Date
Mon Sep 03 2018
Journal Name
Al-academy
Educational Novelty And Its Relation With Visual Thinking With The Students Of Artistic Education Department
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The two objectives of the current research are :-

  1. Uncover the views and opinions of the students of Artistic Education Department about the relation between educational novelty and its relation with visual . 
  2. Identifying the capabilities of the students of artistic education department .

            The society of the research is the  fourth class students of artistic education department -  College of Fine Arts  ( 83 students from both sexes ) .  It was chosen ( 60 ) students sample of  from both sexes by the researcher in order to conduct test upon them .The researcher has adopted descr

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Publication Date
Wed Feb 20 2019
Journal Name
Political Sciences Journal
Modernity when Zaki Almelad
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The Islamic thought still suffers from the problems posed by Western thought in the modern era, especially after the establishment of the modern Arab state, and replacing the intellectual reference that prevailed at that time, which is represented by Islamic thought with another intellectual reference represented by Western thought. Since then, thinkers and innovators and reformers and intellectuals of the Islamists, Are trying to get out of these many problems and multiple, after imposing the nature of that thought and those references with all their consequences, and one of these problems that is still Islamic thought suffers, the bilateral problem that some academics have raisedThe title of the symposium failed The Islamic thought and

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Publication Date
Tue Jan 08 2019
Journal Name
Arab Science Heritage Journal
النظرية السياسية عند المعتزلة
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تعد فرقة المعتزلة من الفرق الإسلامية الكبيرة التي شغلت حيزاً كبيراً في التاريخ الإسلامي, فقد ظهرت المعتزلة كفرقة ذات نسق عقيدي مميز الى الوجود في العصر الأموي , ولكنها شغلت الفكر الإسلامي في العصر العباسي عندما بلغت أوج قوتها ردحاً طويلاً من الزمن .

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Publication Date
Tue Oct 05 2021
Journal Name
Arab Science Heritage Journal
مفهوم الجمال عند الجاحظ
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Al-Jahiz was an aesthetic philosopher, and the concept of beauty for Al-Jahiz depended on objectivity and focus on the idea of moderation

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Publication Date
Thu Mar 02 2023
Journal Name
الاستاذ للعلوم الانسانية والاجتماعية
Christian religious beliefs
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Through the title of the research, it is clear that beliefs in different religions are considered the important principles that distinguish religions, sects, and sects from each other, and belief is the important foundation and pillar on which the individual and society is based, because God Almighty called for reflection and reflection to choose his peaceful belief away from blind imitation. It is (belief in the existence of God, and His unification - and glorifying His attributes - and belief in the prophets in general, and belief in the angels in general, and in the revealed books in general).

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Publication Date
Sun Sep 30 2012
Journal Name
College Of Islamic Sciences
Poetic necessity, when Maari
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Praise be to God, Lord of the worlds, and prayers and peace be upon the master of the messengers, his family and all his companions. And after:
      This research talks about a topic that has taken a great deal of attention and controversy among many Arabic language scholars, which is the subject of poetic necessity, but it does not talk about the necessity in general, but one of the scholars and writers who had stances and references to this issue was chosen in many places from their books. Abu Al-Ala 'Al-Maari was among the scholars who dealt with this issue on numerous occasions and occasions, and this was evident in his books.

    We chose this topic to see how Abu Al-Ala

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Publication Date
Tue Oct 05 2021
Journal Name
Arab Science Heritage Journal
الزمن الصرفي عند المحدثين
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Modern linguistic theories have given the researchers some real opportunities to find out important linguistic phenomena that

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Publication Date
Fri Nov 09 2018
Journal Name
Iraqi National Journal Of Nursing Specialties
Detection the level of YKL-40 biochemical marker and vitamin D level in sera of Iraqi Uterine cancer females' patients
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Objective: Detection the level of YKL-40 biochemical marker and vitamin D level in sera of Iraqi uterine cancer
females' patients.
Methodology: This study included 90 female volunteers, 30 of them were healthy volunteers who were
considered as a control group, while sixty serum samples were collected from women patients suffering from
uterine tumors (30 malignant and 30 fibroid benign tumors), benign cases were considered as a disease
control group for malignant tumors. The average age of those females was 30-75 years, which matched the
control group. All the samples were collected from Azady hospital in Kirkuk and the gynecologic department at
Medical City in Baghdad during October /2012 to May /2013. All the serum

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