Safa Amir Najim

@uobasrah.edu.iq

College of Computer Science and Information Technology
Basrah University

Safa Amir Najim


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https://researchid.co/safanajim
From 1999-2000, he was a member of the AL_Rafidian University College, Baghdad, Iraq. Since 2000, he is a member of the Basrah University. He was a member in the Computer Science Department, Science College. In 2017 -2018, he was head of Computer Information System in College of Computer Science and Information Technology, Basrah University. He has the professor degree in the computer science in 9/2/2016.

EDUCATION

Safa A. Najim was born in Basrah, Iraq, in 1973. From Bangor University, UK, he received his PhD degree, in 2014. He received the BSc. and MSc. degrees in computer science from the University of Basrah, Iraq, in 1996 and 1998, respectively.
13

Scopus Publications

140

Scholar Citations

7

Scholar h-index

5

Scholar i10-index

Scopus Publications

  • Experimental Investigation of Microbubble Evolution in the Liquivac Multiphase Flow Pump
    Hamad FA, Safa Najim, Keville Tony, Atma Prakash, Sajid Abdullah
    Asia Pacific Journal of Chemical Engineering, 2026
    This paper aims to experimentally investigate the mechanisms of microbubble characteristics evolution within an axial pump. The findings will aid in assessing the pump performance by identifying the range of bubble sizes and comparing them with the threshold size (< 300 μm). This study also provides evidence supporting the use of such pumps as microbubble generators for large‐scale applications, such as aquaculture farms and dissolved air flotation (DAF) in water treatment processes. The temporal and spatial characteristics of microbubbles were analysed at water flow rates of 16.7, 33, 50, 67, and 83 L/min, and air volumetric qualities ( β ) ranging from 10% to 40%, at a pump rotational speed of 2900 rpm. High‐speed photography and image processing techniques were employed to record 200 video frames (around 6 s) to analyse them in order to determine the mean microbubble size and distribution. The main findings include the following: (i) bubble size decreases along the axial direction from the pump inlet to the outlet; (ii) microbubble size decreases with higher water flow rates and increases with higher air volumetric qualities; (iii) increased impeller rotation, at constant water flow rate and air volumetric quality, reduces microbubble size.
  • Visualizing and Evaluating Microbubbles in Multiphase Flow Applications
    Safa A. Najim, Deepak Meerakaviyad, Kul Pun, Paul Russell, Poo Balan Ganesan, et al.
    Fluids, 2024
    Accurate visualization of bubbles in multiphase flow is a crucial aspect of modeling heat transfer, mixing, and turbulence processes. It has many applications, including chemical processes, wastewater treatment, and aquaculture. A new software, Flow_Vis, based on experimental data visualization, has been developed to visualize the movement and size distribution of bubbles within multiphase flow. Images and videos recorded from an experimental rig designed to generate microbubbles were analyzed using the new software. The bubbles in the fluid were examined and found to move with different velocities due to their varying sizes. The software was used to measure bubble size distributions, and the obtained results were compared with experimental measurements, showing reasonable accuracy. The velocity measurements were also compared with literature values and found to be equally accurate.
  • Experimental measurements on the microbubble characteristics and dissolved oxygen (DO) in water using single and twin-Venturi type microbubble generators
    F.A. Hamad, Kul Pun, Basso Alessio, S.A. Najim, P.B. Ganesan, et al.
    Chemical Engineering Science, 2023
  • Experimental investigation of the parameters that affect droplet size and distribution for design calculations of two-phase separators
    Kul Pun, Faik Hamad, Tariq Ahmed, Johnson Ugwu, Safa Najim, et al.
    Heliyon, 2023
  • Insightful Visualization of Remote Sensing Images
    Safa A. Najim, Basaeir Y. Ahmed
    IEEE Geoscience and Remote Sensing Letters, 2023
  • Transfer Colors Visualization of Large-Scale Hyperspectral Imagery
    Safa A. Najim
    Aip Conference Proceedings, 2022
  • Design Interactive Game by Using Visualization: The Movie Data Set
    Zainab H. Zalaan, Safa A. Najim
    2022 Iraqi International Conference on Communication and Information Technologies Iiccit 2022, 2022
    Data visualization is a strategy for seeing previously unknown data that will aid humanity in discovering essential information. There are various ways to represent datasets, but data visualization is the most effective because of its ability in seeing unseen information, which is a valuable tool for assisting in understanding and keeping interactive games enjoyable. The representation of the skeleton by the game is necessary when the skeleton is used to analyze the visualization patterns, and therefore the visualization of the dataset gives effective results. In this paper, we will present a new method that will effectively analyze the visualization patterns and present an interactive movie with interactive movements compared to the movements of the original visualization patterns in the dataset, and visualize movie datasets, by quantities of movie skeleton, which can be used in-game. This new method is quantity skeleton has a good level of speed, efficiency, and accuracy. In the conclusion of this study, we will present all of the outcomes of the comparison among our proposed method and other well-known ways, proving the effectiveness and efficiency of the proposed through the use of well-known comparison measures and the presentation of the results.
  • Applying the visualization technique to solve the human color blindness
    Basaeir Y. Ahmed, Zainab H. Majeed, Safa A. Najim
    Aip Conference Proceedings, 2020
  • Specifying the visualizing type of multi-dimensional data
    Zainab H Majeed, Basaeir Y Ahmed, Safa A Najim
    Journal of Physics Conference Series, 2019
  • Parallel faithful dimensionality reduction to enhance the visualization of remote sensing imagery
    Safa A. Najim, Alaa A. Najim, Ik Soo Lim, Mohammed Saeed
    Neurocomputing, 2015
    In this paper, we will introduce a new method to investigate the best visualization of remote sensing imagery data sets on graphics processing units (GPU). The main shortcoming of classical dimension reduction methods is that their visualizations inevitably lose a significant amount of information in remote sensing imagery. Our proposed method (Enhancement Trustworthy (ET)) preserves the color distance as noticeably as possible for high dimension space by defining parallel-supervised extra step to enhance the quality of visualization. The ET classifies the visualization colors into false and true, and constructs a trustworthiness of CIE color space to improve the trustworthy value of false colors. The trustworthiness value of points inside CIE color space illustrate the locations of false and true projected colors in the visualization. Our method is supervised, where the user can select the interested points to enhance by ET. The proposed method is general enhancement step which can be used to enhance any visualization, for example, we used it to enhance the visualizations of remote sensing imagery data sets, which are carried by PCA, SPE and Isomap methods. The results showed the ability of ET to overcome the false colors and return the more reliable true colors. The colors of enhance visualizations showed more details which represent the real neighborhood relation in original data sets. HighlightsIn this paper, we will introduce a new method to investigate the best visualization of remote sensing imagery data sets on graphics processing units (GPU).Our enhanced method (ET) preserves the color distance for remote sensing imagery by defining parallel supervised extra step to enhance the quality of visualization.The ET classifies the visualization colors into false and true, and constructs a trustworthiness of CIE color space.The trustworthiness value of points inside CIE color space illustrate the locations of false and true projected colors in the visualization.The proposed method is general enhancement step which can be used to enhance any visualization.
  • FSPE: Visualization of hyperspectral imagery using faithful stochastic proximity embedding
    Safa A. Najim, Ik Soo Lim, Peter Wittek, Mark W. Jones
    IEEE Geoscience and Remote Sensing Letters, 2015
  • Trustworthy dimension reduction for visualization different data sets
    Safa A. Najim, Ik Soo Lim
    Information Sciences, 2014
  • Visualization of remote sensing imagery by sequential dimensionality reduction on graphics processing unit
    Safa A. Najim, I. S. Lim
    Ivapp 2014 Proceedings of the 5th International Conference on Information Visualization Theory and Applications, 2014

RECENT SCHOLAR PUBLICATIONS

  • Experimental Investigation of Microbubble Evolution in the Liquivac Multiphase Flow Pump
    H Fa, S Najim, K Tony, A Prakash, S Abdullah
    Asia‐Pacific Journal of Chemical Engineering 21 (2), e70168 , 2026
    2026
  • A novel graph-theoretic and data visualization framework for spatiotemporal bubble analysis in turbulent flows
    AA Najim, S Najim
    Information Sciences, 123164 , 2026
    2026
  • Visualizing and Evaluating Microbubbles in Multiphase Flow Applications
    SA Najim, D Meerakaviyad, K Pun, P Russell, PB Ganesan, D Hughes, ...
    Fluids 9 (3), 58 , 2024
    2024
    Citations: 2
  • Experimental measurements on the microbubble characteristics and dissolved oxygen (DO) in water using single and twin-Venturi type microbubble generators
    FA Hamad, K Pun, B Alessio, SA Najim, PB Ganesan, D Hughes
    Chemical Engineering Science 280, 118994 , 2023
    2023
    Citations: 21
  • Experimental investigation of the parameters that affect droplet size and distribution for design calculations of two-phase separators
    K Pun, F Hamad, T Ahmed, J Ugwu, S Najim, J Eyers, G Lawson, ...
    Heliyon 9 (4) , 2023
    2023
    Citations: 8
  • Insightful visualization of remote sensing images
    SA Najim, BY Ahmed
    IEEE Geoscience and Remote Sensing Letters 20, 1-4 , 2022
    2022
    Citations: 7
  • Transfer colors visualization of large-scale hyperspectral imagery
    SA Najim
    AIP Conference Proceedings 2398 (1), 050019 , 2022
    2022
  • Design Interactive Game by Using Visualization: The Movie Data Set
    ZH Zalaan, SA Najim
    2022 Iraqi International Conference on Communication and Information … , 2022
    2022
  • Visualization the movie dataset for interactive game design
    ZH Zalaan, SA Najim
    NeuroQuantology 20 (10), 1194-1206 , 2022
    2022
  • A comparative study for skeleton representation methods using data visualization
    ZH Zalaan, SA Najimb
    Journal of Al-Qadisiyah for computer science and mathematics 14 (2), Page 22-32 , 2022
    2022
    Citations: 2
  • Software engineering's role in visualizing large data as medical datasets
    SANHAA Sebti
    Journal of Advanced Computer Science & Technology 11 (1), 1-6 , 2022
    2022
  • 1*, Safa A. Najim2, Hadeel S. Al Ali 3, Visualization the Bioinformatics of COVID-19 to find Satisfactory Drug
    HAA Sebti
    Advances in Mechanics 9 (3), 1512-1525 , 2021
    2021
    Citations: 3
  • Applying the visualization technique to solve the human color blindness
    BY Ahmed, ZH Majeed, SA Najim
    AIP Conference Proceedings 2290 (1), 040008 , 2020
    2020
    Citations: 7
  • Specifying the visualizing type of multi-dimensional data
    ZH Majeed, BY Ahmed, SA Najim
    Journal of Physics: Conference Series 1294 (3), 032033 , 2019
    2019
    Citations: 4
  • E-Systems for the 21st Century: Concept, Developments, and Applications-Two Volume Set
    S Kadry, A El Hami
    CRC Press , 2019
    2019
    Citations: 18
  • Parallel Processing for Visualizing Remote Sensing Imagery Data Sets
    SA Najim, AA Najim
    E-Systems for the 21st Century: Concept, Developments, and Applications 2 , 2019
    2019
    Citations: 1
  • Role of Software Engineering in Visualizing Large Volume of Hyberspectral and Medical Data Sets
    BYAWAM Najim S.A.
    International Journal of Computer Application 176, 1-5 , 2017
    2017
    Citations: 2
  • Hybrid visualization of the medical images data sets
    SA Najim, WA Mansour
    International Journal of Computer Applications 136 (8), 1-5 , 2016
    2016
    Citations: 3
  • Laboratory-safety and security concepts for Basrah University students, employers, and teachers
    FJM Al-Imarah, AH Amtagy, MJB Al-Assadi, HS Al-Lami, WS Hanoosh, ...
    Journal of Pharmaceutical, Chemical and Biological Sciences 4 (2), 160-168 , 2016
    2016
    Citations: 3
  • Parallel faithful dimensionality reduction to enhance the visualization of remote sensing imagery
    SA Najim, AA Najim, IS Lim, M Saeed
    Neurocomputing 168, 560-565 , 2015
    2015
    Citations: 9

MOST CITED SCHOLAR PUBLICATIONS

  • Experimental measurements on the microbubble characteristics and dissolved oxygen (DO) in water using single and twin-Venturi type microbubble generators
    FA Hamad, K Pun, B Alessio, SA Najim, PB Ganesan, D Hughes
    Chemical Engineering Science 280, 118994 , 2023
    2023.0
    Citations: 21
  • Trustworthy dimension reduction for visualization different data sets
    SA Najim, IS Lim
    Information Sciences 278, 206-220 , 2014
    2014.0
    Citations: 21
  • E-Systems for the 21st Century: Concept, Developments, and Applications-Two Volume Set
    S Kadry, A El Hami
    CRC Press , 2019
    2019.0
    Citations: 18
  • FSPE: Visualization of Hyperspectral Imagery Using Faithful Stochastic Proximity Embedding
    SA Najim, IS Lim, P Wittek, M Jones
    IEEE Geoscience and Remote Science Letters 12 (1), 18-22 , 2015
    2015.0
    Citations: 13
  • Information visualization by dimensionality reduction: a review
    SA Najim
    Journal of Advanced Computer Science and Technology 3 (2), 101-112 , 2014
    2014.0
    Citations: 12
  • Parallel faithful dimensionality reduction to enhance the visualization of remote sensing imagery
    SA Najim, AA Najim, IS Lim, M Saeed
    Neurocomputing 168, 560-565 , 2015
    2015.0
    Citations: 9
  • Experimental investigation of the parameters that affect droplet size and distribution for design calculations of two-phase separators
    K Pun, F Hamad, T Ahmed, J Ugwu, S Najim, J Eyers, G Lawson, ...
    Heliyon 9 (4) , 2023
    2023.0
    Citations: 8
  • Insightful visualization of remote sensing images
    SA Najim, BY Ahmed
    IEEE Geoscience and Remote Sensing Letters 20, 1-4 , 2022
    2022.0
    Citations: 7
  • Applying the visualization technique to solve the human color blindness
    BY Ahmed, ZH Majeed, SA Najim
    AIP Conference Proceedings 2290 (1), 040008 , 2020
    2020.0
    Citations: 7
  • Specifying the visualizing type of multi-dimensional data
    ZH Majeed, BY Ahmed, SA Najim
    Journal of Physics: Conference Series 1294 (3), 032033 , 2019
    2019.0
    Citations: 4
  • 1*, Safa A. Najim2, Hadeel S. Al Ali 3, Visualization the Bioinformatics of COVID-19 to find Satisfactory Drug
    HAA Sebti
    Advances in Mechanics 9 (3), 1512-1525 , 2021
    2021.0
    Citations: 3
  • Hybrid visualization of the medical images data sets
    SA Najim, WA Mansour
    International Journal of Computer Applications 136 (8), 1-5 , 2016
    2016.0
    Citations: 3
  • Laboratory-safety and security concepts for Basrah University students, employers, and teachers
    FJM Al-Imarah, AH Amtagy, MJB Al-Assadi, HS Al-Lami, WS Hanoosh, ...
    Journal of Pharmaceutical, Chemical and Biological Sciences 4 (2), 160-168 , 2016
    2016.0
    Citations: 3
  • Visualizing and Evaluating Microbubbles in Multiphase Flow Applications
    SA Najim, D Meerakaviyad, K Pun, P Russell, PB Ganesan, D Hughes, ...
    Fluids 9 (3), 58 , 2024
    2024.0
    Citations: 2
  • A comparative study for skeleton representation methods using data visualization
    ZH Zalaan, SA Najimb
    Journal of Al-Qadisiyah for computer science and mathematics 14 (2), Page 22-32 , 2022
    2022.0
    Citations: 2
  • Role of Software Engineering in Visualizing Large Volume of Hyberspectral and Medical Data Sets
    BYAWAM Najim S.A.
    International Journal of Computer Application 176, 1-5 , 2017
    2017.0
    Citations: 2
  • Specifying the visualizing type of multi-dimensional data, et al 2019 J
    ZH Majeed, BY Ahmed, SA Najim
    Phys.: Conf. Ser 1294 (032033), 0.89 , 0
    Citations: 2
  • Parallel Processing for Visualizing Remote Sensing Imagery Data Sets
    SA Najim, AA Najim
    E-Systems for the 21st Century: Concept, Developments, and Applications 2 , 2019
    2019.0
    Citations: 1
  • Faithful visualization and dimensionality reduction on graphics processing unit
    SA Najim
    PQDT-Global , 2014
    2014.0
    Citations: 1
  • Visualization of Remote Sensing Imagery by Sequential Dimensionality Reduction on Graphics Processing Unit
    SA Najim, IS Lim
    Proceedings of the 5th International Conference on Information Visualization … , 2014
    2014.0
    Citations: 1