Formulation of approximate mathematical model for incoming water to some dams on Tigris and Euphrates Rivers using spline function

H.A.A Al-Razak; Muna M. Mustafa

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Publication Date

Tue Jan 01 2019

Journal Name

Australian Journal Of Mathematical Analysis And Applications

Volume

2

Issue Number

16

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26

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Formulation of approximate mathematical model for incoming water to some dams on Tigris and Euphrates Rivers using spline function

Approximation mathematical model

Dams

Incoming water

Spline function

Tigers and Euphrates Rivers

Nadia M. J. Ibrahem

H.A.A Al-Razak

Muna M. Mustafa

...Show More Authors

n this paper, we formulate three mathematical models using spline functions, such as linear, quadratic and cubic functions to approximate the mathematical model for incoming water to some dams. We will implement this model on dams of both rivers; dams on the Tigris are Mosul and Amara while dams on the Euphrates are Hadetha and Al-Hindya.

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Publication Date

Fri May 31 2019

Journal Name

Journal Of Engineering

Water Retention Techniques under Crop’s Root Zone a Tool to Enhance Water Use Efficiency and Economic Water Productivity for Zucchini

zucchini

water use efficiency

membrane sheet

and economic water productivity.

Ali Hassan

Sabah Anwer

...Show More Authors

A new technique in cultivation by installing membrane sheet below the crop’s root zone was helped to save irrigation water in the root zone, less farm losses, increasing the field water use efficiency and water productivity. In this paper, the membrane sheet was installed below the root zone of zucchini during the summer growing season 2017 in open field. This research was carried out in a private field in Babil governorate at Sadat Al Hindiya Township reached 72 km from Baghdad. Surface trickle irrigation system was used for irrigation process. Two treatment plots were used, treatment plot T1 using membrane sheet and treatment plot T2 without using the membrane sheet. The applied irrigation water, time of

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(3)

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

...Show More Authors

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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(1022)

Publication Date

Mon Jan 13 2020

Journal Name

Journal Of Accounting And Financial Studies ( Jafs )

Analyzing the net profitability of total investments using a constructed mathematical model: An applied research at Iraqi Middle East Bank for investment for the financial years 2008-2010

ليلى ناجي

...Show More Authors

The trading banks in Iraq invest their funds according to regulations imposed by the Central Bank in Iraq in different financial fields like stock exchanges, acquire stocks as assets that could be sold at any time as well as make loans and contributing in corporations establishment also magnitude foreign capital through direct contacts with foreign exchange markets.

We can summarize the problem of this paper as shortage in mathematical models that used in studying and analyzing these investments and according to this problem we used (a constructed mathematical model ) consists of three major indicators: profitability of total investment assets which is divided into three sub-indicators: owners equity risk indicator, debits risk i

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Publication Date

Thu Dec 01 2016

Journal Name

Journal Of Economics And Administrative Sciences

Use the le'vy Model on stock returns for some Iraqi banks estimate

: Brownian motion

subordinate

Brownian subordinate

Normal Inverse Gaussian model (NIG)

الحركة البراونية

الأحداثي الجزئي

الأحداثي الجزئي ذو الحركة البراونية

أنموذج معكوس كاوس الطبيعي .

مناف يوسف

مريم جمعة

...Show More Authors

In this article we study a single stochastic process model for the evaluate the assets pricing and stock.,On of the models le'vy . depending on the so –called Brownian subordinate as it has been depending on the so-called Normal Inverse Gaussian (NIG). this article aims as the estimate that the parameters of his model using my way (MME,MLE) and then employ those estimate of the parameters is the study of stock returns and evaluate asset pricing for both the united Bank and Bank of North which their data were taken from the Iraq stock Exchange.

which showed the results to a preference MLE on MME based on the standard of comparison the average square e

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Publication Date

Wed Jun 01 2022

Journal Name

Baghdad Science Journal

Impact of Hindiya Dam on the Limnological Features of Euphrates River to the North of Babil Governorate, Iraq

Muhanned R.

Idrees A. A.

...Show More Authors

Five sites were chosen to the north of Babil Governorate in order to identify the limnological features and the impact of the Hindiya Dam during 2019. Site2 was located near the dam to reflect the ecological features of this site, whereas other sites, S1 was located at the upstream of the dam as a control site. Moreover, the two other sites S3 and S4 were located down the dam. The results of the study showed a close correlation between air and water temperature at all sites. Also there were significant differences in average of thirteen out of eighteen water parameters.Water temperature, total alkalinity, bicarbonate, DO, POS, TH and Mg⁺²ions decreased from 22.76˚C, 203.33 mg/L,

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(12)

(1)

Publication Date

Tue Mar 02 2021

Journal Name

Turkish Journal Of Computer And Mathematics Education

Deep understanding skills and their relationship to mathematical modelling among fifth grader

: deep understanding skills

mathematical modeling

hiyam mahdi Jawad Al Kadhimi

...Show More Authors

Abstract: The aim of the current research is to identify (the relationship between deep understanding skills and mathematical modeling among fifth grade students) the research sample consisted of (411) male and female students of the fifth grade of biology distributed over the General Directorates of Education in Baghdad / Al-Rusafa / 2 / and Al-Karkh / 1 /, and two research tools were built: 1- A test of deep understanding skills, consisting of (20) test items and a scale for two skills. 2- The second test consists of (24) test items distributed among (18) essay items and (6) objective items. The psychometric properties of validity, stability, discriminatory strength, and effectiveness of alternatives were verified for the two tests fo

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Publication Date

Tue Feb 01 2022

Journal Name

Journal Of Engineering

Evaluation and Development of the (Hilla – Daghara) Rivers System

Tasen Saleh

Hayder Abdulameer K.

...Show More Authors

Shatt Al-Hilla branches from the left of Euphrates River, U/S Hindiyah Barrage, Iraq, and extends about 100 km. It branches at the end into Shatt Al-Diwaniya 112 km and Shatt Al-Daghara 64 km. The study aims to evaluate and develop (Hilla-Daghara) rivers system, which is included Shatt Al-Hilla and Shatt Al-Daghara. Fieldwork began from (26 October until December) 2020. M9, S5 devices, and the installed staff gauges were used to measure discharges and water levels, respectively. A one-dimensional model was developed for the study area by HEC-RAS, after calibration and verification by field measurements; the Manning's n of Shatt Al-Daghara is found to be 0.022. Five Scenarios were simulated to study the reach under the cu

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(2)

Publication Date

Tue Jan 02 2018

Journal Name

International Journal Of Science And Research

Mathematical Modelling of Zinc Removal from Wastewater by Using Nanofiltration and Reverse Osmosis Membranes

Nanofiltration

Reverse osmosis

Zinc ions

Mathematical model

Miqat Hasan

Ahmed Faiq

...Show More Authors

The present work aimed to study the efficiency of nanofiltration (NF) and reverse osmosis (RO) process for treatment of heavy metals wastewater contains zinc. In this research, the salt of heavy metals were zinc chloride (ZnCl2) used as feed solution.Nanofiltration and reverse osmosis membranes are made from polyamide as spiral wound module. The parameters studied were: operating time (0 – 70 min), feed concentrations for zinc ions (10 – 300 mg/l), operating pressure (1 – 4 bar).The theoretical results showed, flux of water through membrane decline from 19 to 10.85 LMH with time. Flux decrease from 25.84 to 10.88 LMH with the increment of feed concentration. The raise of pressure, the flux increase for NF and RO membranes.The maximum

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Publication Date

Wed Mar 01 2023

Journal Name

Journal Of Engineering

The Roughness Coefficient in Euphrates River Reach between Haditha Dam to Ramadi Barrage

HEC RAS

RMSE

Manning coefficient

Euphrates River

Lubna Imad

Riyadh Z. Azzubaidi

...Show More Authors

Accurate computation of the roughness coefficient is important in the studies of open channel flow. To measure and identify the hydraulic characteristics of the flow system, the model simulation is necessary to study and get the results of the hydraulic properties to specify Manning coefficient of the Euphrates River. In this study, the reach is extended along the Euphrates River from Haditha Dam to Ramadi Barrage with a distance of 169km. The HEC-RAS model was implemented to simulate the flow within the study reach. The geometry of the river was represented by more than two hundred cross-sections surveyed in 2013 and 2021. The model was calibrated using some observed discharges at the Heet gage station for records of th

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(1)

Publication Date

Wed Oct 29 2025

Journal Name

Opción: Revista De Ciencias Humanas Y Sociales, Issn 1012-1587, Nº. Extra 21, 2019, Págs. 907-927

The Effect Of The Perkins’ And Blythe’s Model On Mathematical Communication Among Students Of The 5Th Bio Scientific Grade In Mathematics

Muayad

Lina Fouad

...Show More Authors

Autorías: Muayad Kadhim Raheem, Lina Fouad Jawad. Localización: Opción: Revista de Ciencias Humanas y Sociales. Nº. 21, 2019. Artículo de Revista en Dialnet.

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