A comparison between IRI-2016 and ASAPS models for predicting foF2 ionospheric parameter over Baghdad city
(1)
(2)
Publication Date
Thu Oct 10 2024
Journal Name
Al-mustansiriyah Journal Of Arts
Publication Date
Fri Jul 31 2020
Journal Name
Iraqi Geological Journal
(2)
Publication Date
Wed Jan 01 2020
Journal Name
Society Of Petroleum Engineering
(7)
Publication Date
Thu Mar 01 2012
Journal Name
Journal Of Economics And Administrative Sciences
Using Truncated Test for Finding the Parameters of Single Sampling Plan under Distribution of Log-Logistic
Using Truncated Test for Finding the Parameters of Single Sampling Plan under Distribution of Log-Logistic
A group of acceptance sampling to testing the products was designed when the life time of an item follows a log-logistics distribution. The minimum number of groups (k) required for a given group size and acceptance number is determined when various values of Consumer’s Risk and test termination time are specified. All the results about these sampling plan and probability of acceptance were explained with tables.
Publication Date
Sun Oct 01 2023
Journal Name
Baghdad Science Journal
Gaussian Integer Solutions of the Diophantine Equation x^4+y^4=z^3 for x≠ y
Algebraic properties
Diophantine equation
Gaussian integer
quartic equation
nontrivial solutions
symmetrical solutions.
The investigation of determining solutions for the Diophantine equation over the Gaussian integer ring for the specific case of is discussed. The discussion includes various preliminary results later used to build the resolvent theory of the Diophantine equation studied. Our findings show the existence of infinitely many solutions. Since the analytical method used here is based on simple algebraic properties, it can be easily generalized to study the behavior and the conditions for the existence of solutions to other Diophantine equations, allowing a deeper understanding, even when no general solution is known.
(1)
Publication Date
Mon Apr 30 2018
Journal Name
Journal Of Theoretical And Applied Information Technology
An efficient artificial fish swarm algorithm with harmony search for scheduling in flexible job-shop problem
Artificial Fish Swarm Algorithm
Harmony Search
Makespan
Flexible Job-Shop SchedulingProblem
Flexible job-shop scheduling problem (FJSP) is one of the instances in flexible manufacturing systems. It is considered as a very complex to control. Hence generating a control system for this problem domain is difficult. FJSP inherits the job-shop scheduling problem characteristics. It has an additional decision level to the sequencing one which allows the operations to be processed on any machine among a set of available machines at a facility. In this article, we present Artificial Fish Swarm Algorithm with Harmony Search for solving the flexible job shop scheduling problem. It is based on the new harmony improvised from results obtained by artificial fish swarm algorithm. This improvised solution is sent to comparison to an overall best
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(3)
Publication Date
Fri Jan 01 2021
Journal Name
Desalination And Water Treatment
(14)
(14)
Publication Date
Mon Feb 20 2012
Journal Name
North Africa Technical Conference And Exhibition
Comprehensive Model for Flash Calculations of Heavy Oils Using the Soave - Redlich - Kwong Equation of State
Abstract<p>One of the main techniques to achieve phase behavior calculations of reservoir fluids is the equation of state. Soave - Redlich - Kwong equation of state can then be used to predict the phase behavior of the petroleum fluids by treating it as a multi-components system of pure and pseudo-components. The use of Soave – Redlich – Kwon equation of state is popular in the calculations of petroleum engineering therefore many researchers used it to perform phase behavior analysis for reservoir fluids (Wang and Orr (2000), Ertekin and Obut (2003), Hasan (2004) and Haghtalab (2011))</p><p>This paper presents a new flash model for reservoir fluids in gas – oil se</p>
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upstream oil & gas
Soave - Redlich - Kwong
pvt measurement
equation of state
phase behavior
correlation
mole fraction
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(9)
Publication Date
Wed Apr 01 2015
Journal Name
Journal Of Environmental Engineering
(21)
(15)
Publication Date
Tue Jan 01 2019
Journal Name
Desalination And Water Treatment
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