SIMULATION AND MODELING OF HYDRO CRACKING REACTR TO REDUCE POLLUTION CAUSED BY REFINERIES: SIMULATION AND MODELING OF HYDRO CRACKING REACTR TO REDUCE POLLUTION CAUSED BY REFINERIES

مثنى حارث ابراهيم; سفيان فاضل احمد; لمياء 3 عدنان عبدالرضا

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Publication Date

Thu Dec 31 2020

Journal Name

Iraqi Journal Of Market Research And Consumer Protection

Volume

12

Issue Number

2

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SIMULATION AND MODELING OF HYDRO CRACKING REACTR TO REDUCE POLLUTION CAUSED BY REFINERIES: SIMULATION AND MODELING OF HYDRO CRACKING REACTR TO REDUCE POLLUTION CAUSED BY REFINERIES

Hydro cracking

heavy oil

modeling

reduce pollution

refineries.

مثنى حارث ابراهيم

سفيان فاضل احمد

لمياء 3 عدنان عبدالرضا

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Hydro cracking of heavy oil is used in refinery to produce invaluable products. In this research, a model of hydro cracking reactor has been used to study the behavior of heavy oil in hydro cracking under the conditions recommended by literature in terms lumping of feed and products. The lumping scheme is based on five lumps include: heavy oil, vacuum oil, distillates, naphtha and gases. The first order kinetics was assumed for the conversion in the model and the system is modeled as an isothermal tubular reactor. MATLAB 6.1 was used to solve the model for a five lump scheme for different values of feed velocity, and temperature.

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Publication Date

Sun Dec 04 2016

Journal Name

Baghdad Science Journal

Heavy Metal Pollution and Men Infertility in Al-Falluja City

"Heavy metals

Pollution

Infertility

Falujha city

Y Chromosome"

Hayfa H.

Wissam M.

Hathama R.

Bushra J.

Zainab S.

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Infertilityis oneuof the most problemsathatufacingaadvancedunations. In the general, about halfof allacasesaof the infertility are causedby factors thaturelated toathe male partner. Propos educausesvofumalev infertility include evgeneticuand environmental factors. Blood samples from 64 infertileumen allawere living in urban its al-Fallujah city (30 azospermeiauand 34 oligospermeia) and 32 fertile men (asuthe control group) were collected. Heavy metal concentrations inusera of infertile and fertile groupswereumeasured by using Atomic Absorption Spectrophotometer. Y- chromosomemicrodeletions were detected by using PCR techniques. Significantdifferences (P?0.05)uin the concentration ofucopper (0.0267±0.0147 and 0.0278±0.0273, for infertileua

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Publication Date

Sun Mar 30 2025

Journal Name

Gsc Advanced Research And Reviews

Mercury pollution and its impact on aquatic organisms

Luma

Noor

Shatha

Rasha

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Mercury is a heavy metal that is extremely toxic. There are three types of it: inorganic, organic, and elemental. Mercury in all its forms has been shown to have harmful effects on living things. It can multiply its concentration from lower to higher trophic levels and accumulate in the body's various tissues. Aquatic organisms bodies have been exposed to mercury mostly through various human activities. The largest source of mercury pollution in the air is thermal power plants that mostly use coal as fuel. It is carried to a body of water after being deposited on the ground surface from the air. The way it enters the food chain is through aquatic plants and animals. Mercury accumulations in the kidney, liver, gills, or gonadal tissu

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(1)

Publication Date

Sat Dec 01 2012

Journal Name

Journal Of Economics And Administrative Sciences

Models of measurement and disclosure of fair value accounting - Applied to contribute to company garments mixed

الإفصاح المحاسبي

accounting disclosure

عامر محمد

حسنين كاظم

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The research aims to provide a method to measure the fair value of the most environmentally friendly of Iraq and through the application of method of measuring the fair value of the company garments contribute to mixed as the company is of the economic units of the industrial sector and included in the Iraqi market for securities as a profit and distributes profits to shareholders since the method of measurement of the fair value based on the divided profits as toxic in a deduction of Cash Dividends cash for measuring fair value, and will also be in this research to clarify the disclosure of accounting for fair value and choose the method of disclosure most appropriate to the beneficiaries of accounting disclosure, as will be cho

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Publication Date

Sun Jan 01 2023

Journal Name

E3s Web Of Conferences

Mitigation of Reflection Cracking in Asphalt Concrete Overlay on Rigid Pavements

Yasmin S.

Abbas A.

Amjad H.

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Reflective cracking is one of the primary forms of deterioration in pavements. It is widespread when Asphalt concrete (AC) overlays are built over a rigid pavement with discontinuities on its surface. Thus, this research work aims to reduce reflection cracks in asphalt concrete overlay on the rigid pavement. Asphalt Concrete (AC) slab specimens were prepared in three thicknesses (4, 5, and 6 cm). All these specimens were by testing machine designed and manufactured at the Engineering Consulting Office of the University of Baghdad to examine for the number of cycles and loads needed to propagate the reflection cracking in the asphalt concert mixture at three temperatures (20, 30, and 30°C). It was noticed that the higher thickness A

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(1)

Publication Date

Thu Jun 30 2011

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

CRACKING ACTIVITY OF PREPARED Y-ZEOLITE CATALYST USING CUMENE ON FLUIDIZED BED REACTOR

Fluid catalytic cracking

cumene cracking

benzene production

Abdul Halim

Rawa

Karim

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The catalytic activity of faujasite type NaY catalysts prepared from local clay (kaolin) with different Si/Al ratio was studied using cumene cracking as a model for catalytic cracking process in the temperature range of 450-525° C, weight hourly space velocity (WHSV) of 5-20 h1, particle size ≤75μm and atmospheric pressure. The catalytic activity was investigated using experimental laboratory plant scale of fluidized bed reactor.
It was found that the cumene conversion increases with increasing temperature and decreasing WHSV. At 525° C and WHSV 5 h-1, the conversion was 42.36 and 35.43 mol% for catalyst with 3.54 Si/Al ratio and Catalyst with 5.75 Si/Al ratio, respectively, while at 450° C and at the same WHSV, the conversion w

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Publication Date

Wed Mar 16 2022

Journal Name

Journal Of Educational And Psychological Researches

Administrative Empowerment and Its Relationship to Remote Supervision at Public Schools

Administrative Empowerment

Public Schools

Remote Supervision

Mofareh Alkrdem

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The study aims to identify the extent of the availability of administrative empowerment and the implementation of remote supervision in relation to two variables with respect to the employees of the Saudi Ministry of Education. The study included (456) male and female supervisors. The questionnaire has been administrated to collected data related to the research aims. The results indicated that both the extent of the availability of administrative empowerment and the implementation of remote supervision is of an average degree. There is a significant correlation relationship (p<0.05) between administrative empowerment and remote supervision of the educational supervisors of the Saudi Ministry of Education. The research recommends that

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Publication Date

Mon Feb 14 2022

Journal Name

Proceedings Of The National Academy Of Sciences

Pharmaceutical pollution of the world’s rivers

John L.

Alistair B.A.

Dana W.

Kenneth M. Y.

Racliffe W. S.

Cristóbal

Aiko D.

Julie

Marc

Robert A.

Alejandra

Aida

Anja

Pedro

Macarena

Chris

Magdalena

Monique

Thais

Vahagn

Yekaterina

Clare S.

Christopher J.

Thilo

Tapos

Volga

Jessica

Jean L.

Francisco

Maria T. P.

Victorien

Gildas

Oumar

Jules M.

Linda E.

Michelle

Donald

Romaric

Jaime

Guang-Guo

Chang-Er

Martha

Jina

Jean-Paul

John

Suspense A.

Penelope

Silvia

Nikolina

Milena

Despo

Lida

Vladimíra

Jan

María

Bayable A.

Jeanne

Arnaud

Peter

Ilia

Sven

Gerasimos

Halldór P.

Molly

Thatikonda

Manisha

Anindrya

Adee

Nima

Ali

Omar

Salem S.

Francesco

Benny

Tom

Koffi Marcellin

Bakhyt

Raikhan

Lydia

Jemimah K.

Peter

Victor

Nathaniel T.

Sheck

Ahmad Zaharin

Ley Juen

Mahamoudane

Seydou T.

Rik

Olatayo

Muhammad

Ziad

Aaron

Jorge Manuel

María

Heidi

Ian

Fabio

Alhaji Brima

Bashiru M.

Vesna

Mitja

Melusi

Kyungho

Habyeong

John L. Celestino

Andreu

Priyanie

Anna

Gisela

Armin K.

Alex C.

Jheng-Jie

Rebecca

Madaka

Ulas

Turgut T.

Julius B.

Yuliya

Yuriy

Horacio

Andrés

Douglas B.

Maritza

David

Charles

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Environmental exposure to active pharmaceutical ingredients (APIs) can have negative effects on the health of ecosystems and humans. While numerous studies have monitored APIs in rivers, these employ different analytical methods, measure different APIs, and have ignored many of the countries of the world. This makes it difficult to quantify the scale of the problem from a global perspective. Furthermore, comparison of the existing data, generated for different studies/regions/continents, is challenging due to the vast differences between the analytical methodologies employed. Here, we present a global-scale study of API pollution in 258 of the world’s rivers, representing the environmental influence of 471.4 million people across

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(1166)

Publication Date

Sat Jun 01 2013

Journal Name

Journal Of Economics And Administrative Sciences

Comparison between some well- Known methods to estimate the parameter of the proposed method of measurement and the reliability of the distribution function with two parameters Rally by simulation

طريقة الامكان الاعظم- مقدر بيز – مقدر بيز المطور

/ Maimum Like lihood Method- Bayes Estimator- Bayes developer estimator- Minimax estimator

بيداء اسماعيل

...Show More Authors

Abstract

Rayleigh distribution is one of the important distributions used for analysis life time data, and has applications in reliability study and physical interpretations. This paper introduces four different methods to estimate the scale parameter, and also estimate reliability function; these methods are Maximum Likelihood, and Bayes and Modified Bayes, and Minimax estimator under squared error loss function, for the scale and reliability function of the generalized Rayleigh distribution are obtained. The comparison is done through simulation procedure, t

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Publication Date

Sat Dec 01 2018

Journal Name

Al-khwarizmi Engineering Journal

Numerical Modeling of Water Movement from Buried Vertical Ceramic Pipes through Coarse Soils

Zena Kamil

Maysoon Basheer

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Problem of water scarcity is becoming common in many parts of the world. Thus to overcome this problem proper management of water and an efficient irrigation systems are needed. Irrigation with buried vertical ceramic pipe is known as a very effective in management of irrigation water. The two- dimensional transient flow of water from a buried vertical ceramic pipe through homogenous porous media is simulated numerically using the software HYDRUS/2D to predict empirical formulas that describe the predicted results accurately. Different values of pipe lengths and hydraulic conductivity were selected. In addition, different values of initial volumetric soil water content were assumed in this simulation a

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(1)

Publication Date

Fri Sep 01 2006

Journal Name

Journal Of Engineering

Effect of Transverse Base Width Restraint on the Cracking Behavior of Massive Concrete

Mass Concrete

Temperature Difference

Drying Volume Change

Base Restraint

Concrete Cracking.

Adnan Falih

Omar Al-Farouq

Alaa Hussein

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The effect of considering the third dimension in mass concrete members on its cracking behavior is investigated in this study. The investigation includes thermal and structural analyses of mass concrete structures. From thermal analysis, the actual temperature distribution throughout the mass concrete body was obtained due to the generation of heat as a result of cement hydration in addition to the ambient circumstances. This was performed via solving the differential equations of heat conduction and convection using the finite element method. The finite element method was also implemented in the structural analysis adopting the concept of initial strain problem. Drying shrinkage volume changes were calculated using the procedure suggested

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