Experiments were conducted to study axial liquid dispersion coefficient in slurry bubble column of 0.15 m inside diameter and 1.6 m height using perforated plate gas distributor of 54 holes of a size equal to 1 mm diameter and with a 0.24 free area of holes to the cross sectional area of the column. The three phase system consists of air, water and PVC used as the solid phase. The effect of solid loading (0, 30 and 60 kg/m3) and solid diameter (0.7, 1.5 and 3 mm) on the axial liquid dispersion coefficient at different axial location (25, 50 and 75 cm) and superficial gas velocity covered homogeneous-heterogeneous flow regime (1-10 cm/s) were studied in the present work. The results show that the axial liquid dispersion coefficient increases with increasing superficial gas velocity, axial distance, solid concentration and an inverse relationship with particles diameter.
The use of the entrance diffraction hexagon continuous improvement of operations in order to achieve the rationalization of activities, costs and efficiency in the use of available resources and reduce the incidence of damage and waste and recycling, as the accounting information system does not meet the surface production processes oil fields cost management requirements in the measurement and evaluation of the costs of each activity and development of indicators to evaluate the efficiency and effectiveness of production processes and to cover the shortcomings of currently approved by the company so cost accounting system has Find addressed the use of strategic cost management techniques, including the entrance diffraction hexagon for c
... Show MorePopulation growth and economic and industrial development coupled have significantly accelerated the rate of Land Use and Land Cover (LULC) changes, particularly in developing countries, so finding optimum ways to observe these change has become a pressing issue. Quantification evaluation of these changes is crucial to comprehend and oversee land management conversion, therefore, it is necessary to evaluate the accuracy of various algorithms for LULC classification to determine the most effective classifier for Earth observation applications. The performance of Maximum Likelihood (ML), Support Vector Machines (SVM), Random Forest (RF), and K-Nearest Neighbors (KNN) was examined in this study, based on Sentinel 2A satellite images. T
... Show MoreAbstract: The aim of this study was to identify the Distress Tolerance among the Employees in Media and Communication in Baghdad.and to identify the significance of the differences between sex ,scientific specialization ,age,and marital status. and the researcher used the Distrees Tolerance measure for Simon &Gahar 2005. The sample of the study consisted of(37)Employees.The Scale of Distrees Tolerance were used as the study tools after being checked for their Validity and Reliability. The research results indicated that employees have high scores on the scale of stress tolerance and that there are statistically significant differences between the age groups and between married and unmarried people a
... Show MoreThis study aimed to clarify the importance of ecological taxation in achieving sustainable development, by analyzing a set of economic measures such as taxes, taxes levied by the legislation in the field of ecology, to fight against pollution. And we tried to evaluate this initiative in Algeria. The results of the study showed that economic measures of ecological taxation contribute to achieving sustainable development, and Although Algeria has adopted a series of ecological tax mechanisms, it is far from keeping pace with developments in this area.
There are many methods of teaching foreign language to non-native speakers now therefore the discovery of new methods - which make students understand the language , vocabulary & saves them as soon as possible – becomes one of the most important duties of teachers and educators .
The personal experience shows that the teaching of the Russian language through memorizing Russian poetry is one of the fastest ways to master the language and know its rules and also improve the ability of translating vocabulary and being not able to save the Russian words only , but to make it complete too. Poetry is an article or text which loves by people and en
... Show MoreMany studies and researches represented the importance of the planning and designing criteria's. Planning and Designing issue influence by three factors, firstly: The Present situation of life is always exchanging and developing. Secondly: Design work represents views of problem that never appear at the beginning of the work but only by plan implementation which need to in some cases to modifying the specify aims and criteria's. Thirdly: Never establish criteria's and aims that can be used as a reference before starting design and planning process. This research will study present situation of the services for residential areas criteria's and planning legitimate in some designed cities in Iraq with different levels (neighborhood,
... Show MoreHumility is assign of the Purity of the soul and safety of the heart from the disease of pride and arrogance. It represents an important side of the formation of man's character and his behavior since it calls for love, intimacy and connection and a means to free the heart from the chains of envy and grudge. The word Humility (humbleness) appeared in the holy bible in many places. A accordingly, Christianity urged for sticking to it by its followers. The study aims at showing the meaning of humbleness, its importance and example of the humbleness of Jesus Christ (Peace be upon him) under the title (humbleness in Christianity/A Descriptions study). The paper falls into an introduction and three sections. The introduction talks about the mean
... Show MoreThis research deals with the phenomenon of a similar voice phenomenon has founded
its own laws similar and includes the following phenomenon:
Azahrh aledgam: and Qdbent Tarifaoshrooth or dinaces and reflects the correlation
between language and reading and then apply the provision in sura blessed.
Phenomenon Alaalal and substitution, Two of the important acoustic phenomenon the
linguistic heritage has shown Alaalal types and the difference between him and the
substitution then counted their applications in Sura.
Similar phenomena: in name and deed shares bult causes and probability voices and
sound that refrais where tilt.
The research tagged (Digital Collage in Contemporary Art) consisted of four chapters. The first chapter was devoted to the methodological framework of the research. The problem ended with the following questions: How does digital collage represent contemporary art? What is the variable at the level of meaning shifts in composing works according to the digital collage? Was the digital collage a qualitative leap in the path of the aesthetic pattern in art? How does digital collage interfere with contemporary life and societies? It included the aim of the research and its importance, while the second chapter dealt with two topics, the first (reading in the concept of collage), and the second (digital collage). The third chapter was devoted
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