Publication and Research Activity

Publications

1. Najmadeen M. Saeed, Jalal Ahmed Saeed, Shear Strength and Behavior of Crushed Stone High Strength Reinforced Concrete Deep Beams. The 4th International Scientific Conference of Salahaddin University-Erbil, Kurdistan Region- Iraq, 18-20 October 2011 (Kurdistan Region- Iraq).

https://www.researchgate.net/publication/292694436_Shear_Strength_and_Behavior_of_Crushed_Stone_High_Strength_Reinforced_Concrete_Deep_Beams

2. Najmadeen M. Saeed, Alan S Kwan, Concepts for Morphing Aerofoil Sections Using Pantographic Structures. Mobile and Rapidly Assembled Structures IV 136, Ostend, Belgium, pp. 279-289, 11 - 13 June 2014 (Belgium).

ISBN 9781845647728

http://dx.doi.org/10.2495/MAR140231

3. Najmadeen M. Saeed, Alan S Kwan, Simultaneous Displacement and Internal Force Prescription in Shape Control of Pin-Jointed Assemblies, AIAA Journal, Vol. 54, No. 8, pp. 2499-2506, August 2016 (United States). (I. F. = 2.624).

ISSN 0001-1452 (online),

http://dx.doi.org/10.2514/1.J054811

4. Najmadeen M. Saeed, Alan S Kwan, Displacement and Force Control of Complex Element Structures by Matrix Condensation, Structural Engineering and Mechanics, an International Journal, Vol. 59, No. 6, pp. 973-992, September 2016 (South Korea). (I. F. = 2.998).

ISSN: 1225-4568 (Print), 1598-6217 (online),

http://dx.doi.org/10.12989/sem.2016.59.6.973

5. Ahmed A. Manguri, Alan S Kwan, Najmadeen M. Saeed, Adjustment for Shape Restoration and Force Control of Cable Arch Stayed Bridges, International Journal of Computational Methods and Experimental Measurements, Vol. 5, No. 4, pp. 514-521, January 2017 (United Kingdom).

ISSN: 2046-0546 (paper format), ISSN: 2046-0554 (online), http://www.witpress.com/journals

http://dx.doi.org/10.2495/cmem-v5-n4-514-521

6. Arass O. Mawlod, Najmadeen M. Saeed, Impact of Cement Replacement Partially by Mosaic powder on Compressive Strength of Concrete, Eurasian Journal of Science & Engineering, (EAJSE), Vol. 2, No. 2, pp. 9-18, June 2017 (Kurdistan Region, Iraq).

http://eajse.org/index.php/eajse-current-issue-article-2/

7. Najmadeen M. Saeed, Alan S Kwan, Displacement and internal force control in cable-stayed bridges, Proceedings of the Institution of Civil Engineers-Bridge Engineering, Ahead of Print, pp. 1-8, February 2018 (United Kingdom). (SCOPUS SJR=0.271).

ISSN 1478-4637 (online),

https://doi.org/10.1680/jbren.16.00010

8. Najmadeen M. Saeed, Arass O. Mawlod, Ahmed A. Manguri, Mechanical Behavior of Concrete with Cement Partially Replaced by Chewed Gum, Eurasian Journal of Science & Engineering, (EAJSE), Vol. 3, No. 2, pp. 9-18, December 2017 (Kurdistan Region, Iraq).

http://eajse.org/index.php/current-issue-article-14/

9. Najmadeen M. Saeed, Ahmed A. Manguri, Shna J. Abdulkarim, Ali M. Shekha, Shape Restoration of Deformed Egg-Shaped Single Layer Space Frames, International Conference on Advanced Science and Engineering (ICOASE), The conference is technically sponsored by IEEE, which is represented by the IEEE Iraq Section, Duhok, Kurdistan Region, Iraq, pp. 220-225, 2 - 4 April 2019, Kurdistan Region, Iraq.

ISBN 1538693437

http://dx.doi.org/10.1109/ICOASE.2019.8723714

10. Najmadeen M. Saeed, Alan S Kwan, Shape Morphing and Adjustment of Pantographic Morphing Aerofoil Section Structure, Smart Structures and Systems, an International Journal, Vol. 24, No. 2, pp.193-207, May 2019 (South Korea). (I. F. = 4.581).

ISSN: 1738-1584 (Print), 1738-1991 (Online),

https://doi.org/10.12989/sss.2019.24.2.193

11. Najmadeen M. Saeed, Simultaneous Force and Deformation Control of Cable Arch Stayed Bridges, Kufa Journal of Engineering, Vol. 10, No. 4, pp.66-75, October 2019 (Iraq).

12. Shna J. Abdulkarim, Najmadeen M. Saeed, Hawkar A. Hagi, Direct Displacement Control of Deformed Double Layer Dome, UKH Journal of Science and Engineering, Vol. 4, No. 2, pp. 1-14, June 2020 (Kurdistan Region, Iraq).

https://doi.org/10.25079/ukhjse.v4n2y2020.pp1-14

13. Ahmed A. Manguri, Najmadeen M. Saeed, An Approximate Linear Analysis of Structures Utilizing Incremental Loading of Force Method, UKH Journal of Science and Engineering, Vol. 4, No. 2, pp. 37-44, June 2020 (Kurdistan Region, Iraq).

https://doi.org/10.25079/ukhjse.v4n2y2020.pp37-44

14. Najmadeen M. Saeed, Ahmed A. Manguri, Serwan Al-Zahawi, Optimum Geometry and Stress Control of Deformed Double Layer Dome for Gravity and Lateral Loads, 7th International Engineering Conference “Research & Innovation amid Global Pandemic" (IEC), The conference is technically sponsored by IEEE, which is represented by the IEEE Iraq Section, Erbil, Kurdistan Region, Iraq, 24 - 25 February 2021 (, Kurdistan Region, Iraq).

ISBN 978-1-6654-1283-4

https://doi.org/10.1109/IEC52205.2021.9476094

15. Ahmed A. Manguri, Najmadeen M. Saeed, Barham Haydar, Optimal Shape Refurbishment of Distorted Dome Structure with Safeguarding of Member Stress, 7th International Engineering Conference “Research & Innovation amid Global Pandemic" (IEC), The conference is technically sponsored by IEEE, which is represented by the IEEE Iraq Section, Erbil, Kurdistan Region, Iraq, 24 - 25 February 2021 (, Kurdistan Region, Iraq).

ISBN 978-1-6654-1283-4

https://doi.org/10.1109/IEC52205.2021.9476107

16. Najmadeen M. Saeed, Ahmed A. Manguri, Abubakr M. Adabar, Shape and force control of cable structures with minimal actuators and actuation, International Journal of Space Structures, Vol. 36, No. 03, pp. 241-248, 10 November 2021 (United Kingdom). (I. S. = 1.06).

https://doi.org/10.1177/09560599211045851

17. Szczepanski, Ahmed A. Manguri, Najmadeen M. Saeed, D Chuchala, The Effect of Openings’ Size and Location on Selected Dynamical Properties of Typical Wood Frame Walls, Polymers, Vol. 14, No. 03, pp. 497, 30 January 2022. (I. F. = 4.329).

https://doi.org/10.3390/polym14030497

18. Najmadeen M. Saeed, Displacement Control of Nonlinear Pin-Jointed Assemblies Based on Force Method and Optimization, AIAA Journal, Vol. 60, No. 02, pp. 1-8, 01 February 2022 (United States). (I. F. = 2.624).

https://doi.org/10.2514/1.J060568

19. Aram Mahmood, Javad Katebi, Najmadeen M. Saeed, Ahmed A. Manguri, Optimized Stress and Geometry Control of Spherical structures under Lateral Loadings, 8th International Engineering Conference “Research & Innovation amid Global Pandemic" (IEC), The conference is technically sponsored by IEEE, which is represented by the IEEE Iraq Section, Erbil, Kurdistan Region, Iraq, 23 February 2022 (, Kurdistan Region, Iraq).

https://doi.org/10.1109/IEC54822.2022.9807455

20. Najmadeen M. Saeed, Ahmed A. Manguri, M Szczepanski, R Jankowski, Non-Linear Analysis of Structures Utilizing Load-Discretization of Stiffness Matrix Method with Coordinate Update, Applied Sciences, Vol. 12, No. 05, pp. 2394, 25 February 2022. (I. F. = 2.838).

https://doi.org/10.3390/app12052394

21. Hawkar A. Hagi, Najmadeen M. Saeed, BH Salihi, AA Hamza, Performance of Unreinforced Hollow-Block Masonry Houses During 23 August 2017 Ranya Earthquake, UKH Journal of Science and Engineering, Vol. 6, No. 1, pp. 84-93, June 2022 (Kurdistan Region, Iraq).

https://doi.org/10.25079/ukhjse.v6n1y2022.pp84-93

22. Najmadeen M. Saeed, Javad Katebi, Ahmed Manguri, Aram Mahmood, Marcin Szczepański, Robert Jankowski, Using minimum actuators to control shape and stress of a double layer spherical model under gravity and lateral loadings, Advances in Science and Technology Research Journal, Vol. 16, No. 6, pp. 1-13, December 2022 (Poland). (I. F. = 1.5).

https://doi.org/10.12913/22998624/155214

23. Ahmed Manguri, Najmadeen M. Saeed, Aram Mahmood, Javad Katebi, Robert Jankowski, Optimal reshaping and stress controlling of double-layer spherical structures under vertical loadings, Archives of Civil Engineering, Vol. 68, No. 4, pp. 591-606, November 2022 (Poland). (I. F. = 1.7).

https://doi.org/10.24425/ace.2022.143056

24. Araz Ali Mohammed, Najmadeen M. Saeed, Flexural Behavior of High Strength RC Beams Incorporating Nano-Silica and Macro-Polypropylene Fiber, UKH Journal of Science and Engineering, Vol. 6, No. 2, pp. 83-96, December 2023 (Kurdistan Region, Iraq).

https://doi.org/10.25079/ukhjse.v6n2y2022.pp83-96

25. Shna Jabar Abdulkarim, Najmadeen M. Saeed, Nonlinear technique of prestressing spatial structures, Mechanics Research Communications, Vol. 127, pp. 104040, January 2023 (United Kingdom) (I. F. = 2.749).

https://doi.org/10.1016/j.mechrescom.2022.104040

26. Ahmed Manguri, Najmadeen M. Saeed, Farzin Kazemi, Marcin Szczepanski, Robert Jankowski, Optimum number of actuators to minimize the cross-sectional area of prestressable cable and truss structures, Structures, Vol. 47, pp. 2501-2514, January 2023 (United Kingdom). (I. F. = 5.875).

https://doi.org/10.1016/j.istruc.2022.12.031

27. Najmadeen M. Saeed, Ahmed A Manguri, Marcin Szczepanski, Robert Jankowski, Barham Haydar, Static shape and stress control of trusses with optimum time, actuators and actuation, International Journal of Civil Engineering, Vol. 21, No. 3, pp. 379-390, March 2023 (Switzerland). (I. F. = 2.375).

https://link.springer.com/article/10.1007/s40999-022-00784-3

28. Najmadeen M. Saeed, Bashdar Omer, Ahmed Salah Jamal, Mahmood Hunar Dheyaaldin, Performance of cement mortar modified with GGBFS at elevated temperatures with various w/b ratios and superplasticizer dosages, Construction and Building Materials, Vol. 368, pp. 130493, March 2023 (United Kingdom). (I. F. = 7.693).

https://doi.org/10.1016/j.conbuildmat.2023.130493

29. Ahmed Manguri, Najmadeen M. Saeed, Marcin Szczepanski, Robert Jankowski, Buckling and shape control of prestressable trusses using optimum number of actuators, Scientific Reports, Vol. 13, No. 1, pp. 3838, March 2023 United Kingdom). (I. F. = 4.996).

https://www.nature.com/articles/s41598-023-30274-y

30. Ahmed Manguri, Najmadeen Saeed, Marcin Szczepański, Robert Jankowski, Bending moment control and weight optimization in space structures by adding extra members in the optimal locations, Advances in Science and Technology. Research Journal, Vol. 17, No. 4, (2023). (I. F. = 1.0).

http://dx.doi.org/10.12913/22998624/169573

31. Z Hassan, Najmadeen M. Saeed, B H Ali, Optimum Location and Bracing System as Alternative to Shear Walls for Retrofitting of RC Buildings Against Seismic Loading, Eurasian Journal of Science & Engineering, (EAJSE), Vol. 9, No. 2, (2023).

https://doi.org/10.23918/eajse.v9i2p6

32. Z Hassan, Najmadeen M. Saeed, A Manguri, Natural Frequency of RC Walls With Various Sizes and Locations of Opening, Journal of Duhok University, Vol. 26, No. 2, (2023).

https://doi.org/10.26682/csjuod.2023.26.2.68

33. MOHAMMED, R., SABIR, D., Saeed, N., and OMER, B., “Performance of the Mechanical Properties of Concrete Modified with Coarse Glass Aggregate and Incorporation of Polypropylene Fibers,” Passer Journal of Basic and Applied Sciences, Vol. 6, No. 2024, pp. 472-490. (Scopus).

https://doi.org/10.24271/psr.2024.189663

34. Jamal, A.S., Zubaidi, H., Khalid, K.A., Hassan, A.H., and Saeed, N., "Effect of Pumice Powder and Silica Fume on Flowability and Compressive Strength of Slag-Based Geopolymer," in 2023 9th International Engineering Conference on Sustainable Technology and Development (IEC), 2023, IEEE, pp. 133-137. (Scopus)

https://doi.org/10.1109/IEC57380.2023.10438710

35. Abdulkarim, S.J. and Saeed, N.M., “Nonlinear structural analysis technique based on flexibility method by Pade approximants,” Passer Journal of Basic and Applied Sciences, Vol. 6, No. 1, 2024, pp. 150-160. (Scopus)

https://doi.org/10.24271/PSR.2024.429055.1433

36. Abdulkarim, S.J. and Saeed, N.M., “Nonlinear Prestress of Space Cable Net Structures,” Eurasian Journal of Science and Engineering, Vol. 10, No. 1, 2024, pp. 23-34.

https://doi.org/10.23918/eajse.v10i1p3

37. Manguri, A., Saeed, N., and Jankowski, R., “Controlling nodal displacement of pantographic structures using matrix condensation and interior-point optimization: A numerical and experimental study,” Engineering Structures, Vol. 304, No. 2024, pp. 117603. (I. F. = 7.6).

https://doi.org/10.1016/j.engstruct.2024.117603

38. Jabar Abdulkarim, S. and Mohammed Saeed, N., “Statical Nonlinear Analysis of Spherical Assemblies Utilizing Pade Approximation,” Eurasian Journal of Science and Engineering, Vol. No. 2024.

https://doi.org/10.23918/eajse.v10i1p9

39. Manguri, A., Saeed, N., Kazemi, F., Asgarkhani, N., and Jankowski, R., “The Effect of Minimum Actuation Limit in Shape Control of a Single-Layer Dome Frame,” Eurasian Journal of Science and Engineering, Vol. 10, No. 1, 2024, pp. 77-88.

https://doi.org/10.23918/eajse.v10i1p7

40. Haji, H.A., Saeed, N.M., and Esmail, B.K., “Strengthening lateral behavior of existing buildings utilizing ground cable bracing as a new bracing technique,” Asian Journal of Civil Engineering, Vol. 25, No. 5, 2024, pp. 4169-4177. (Scopus)

https://doi.org/10.1007/s42107-024-01039-3

41. Saeed, N.M. and Hassan, H.Z., “An overview of fresh and mechanical properties of rubberized concrete,” Discover Civil Engineering, Vol. 1, No. 1, 2024, pp. 14.

https://doi.org/10.1007/s44290-024-00016-8

42. Manguri, A., Saeed, N., Kazemi, F., Asgarkhani, N., Szczepanski, M., and Jankowski, R., "Computational Bar Size Optimization of Single Layer Dome Structures Considering Axial Stress and Shape Disturbance," in Mathematical Modeling in Physical Sciences, Cham, 2024, Springer Nature Switzerland, pp. 173-185.

https://doi.org/10.1007/978-3-031-52965-8_14

43. Saeed, N.M., “Recent advances in structural health monitoring: techniques, applications and future directions,” Int. J. Reliability and Safety, Vol. 18, No. 1, 2024, pp. 55–85. (Scopus)

https://doi.org/10.1504/IJRS.2023.10061436

44. Manguri, A., Saeed, N., and Jankowski, R., “A Review: Structural Shape and Stress Control Techniques and their Applications,” Archives of Computational Methods in Engineering, Vol. No. 2024, pp. 1-14. (I. F. = 12.9).

https://doi.org/10.1007/s11831-024-10149-9

45. Hasan, P.L., Lamadrid, L.F.G., Abrahamczyk, L., Jamal, B., Saeed, N.M., and Schwarz, J., Empirical Seismic Assessment of Urban Settlements in Developing Countries: Case Study Erbil (Iraq), in 18th World Conference on Earthquake Engineering. 2024: Milan, Italy. p. 1-12.

46. K Esmail, B., M Saeed, N., R Manguri, S., and Gunal, Mustafa, “Engineering properties of pervious concretes produced with recycled aggregate at different aggregate-to-cement ratio,” Advances in Concrete Construction, Vol. 17, No. 1, 2024, pp. 13-26. (I. F. = 1.7).

https://doi.org/10.12989/acc.2024.17.1.013

47. Hassan, H.Z. and Saeed, N.M., “Advancements and applications of lightweight structures: a comprehensive review,” Discover Civil Engineering, Vol. 1, No. 1, 2024, pp. 47.

https://doi.org/10.1007/s44290-024-00049-z

48. Manguri, A., Saeed, N., and Jankowski, R., “Deformation mitigation and twisting moment control in space frames,” Structures, Vol. 68, No. 2024, pp. 107227. (I. F. = 4.9).

https://doi.org/10.1016/j.istruc.2024.107227

49. Saeed, N. and Abdulkarim, S., “A Review of Nonlinear Control Strategies for Shape and Stress in Structural Engineering,” Book Chapter. 2024.

https://doi.org/10.5772/intechopen.1004811

50. Hassan, H.Z. and Saeed, N.M., “Fiber reinforced concrete: a state of the art,” Discover Materials, Vol. 4, No. 1, 2024, pp. 101. (I. F. = 6.2).

https://doi.org/10.1007/s43939-024-00171-w

51. Saeed, N.M., Ali, B.H., Bigonah, M., Jamal, A.S., and Hassan, H.Z., “Impact of structure height on retrofitted RC structures for progressive collapse prevention,” Journal of Building Pathology and Rehabilitation, Vol. 10, No. 1, 2025, pp. 1-32. (Scopus)

https://doi.org/10.1007/s41024-024-00552-x

52. Manguri, A., Hassan, H., Saeed, N., and Jankowski, R., “Topology, Size, and Shape Optimization in Civil Engineering Structures: A Review,” Computer Modeling in Engineering & Sciences, Vol.142, No. 2, January 2024. (I. F. = 2.5).

https://doi.org/10.32604/cmes.2025.059249

53. Mohammed, Araz Ali; Saeed, Najmadeen Mohammed “Experimental study on strengthening reinforced concrete beams incorporating NanoSilica and polypropylene fiber with external tendons,” Innovative Infrastructure Solutions, Vol.10, No. 2, January 2025. (I. F. = 2.8).

https://doi.org/10.1007/s41062-024-01825-7

54. Saeed, Najmadeen Mohammed; Ali, Barham Haidar; Khidir, Sarchil Faisal; Kareem, Ahmed Salman; Ahmed, Brusk Sasan; Khalid, Ibrahim Zahir; Hassan, Hogr Zainaddeen “Effects of steel dust waste incorporation on the mechanical properties of concrete,” Architecture, Structures and Construction, Vol.5, No. 1, March 2025. (Scopus).

https://doi.org/10.1007/s44150-025-00140-8

55. Saeed, Najmadeen Mohammed; Hassan, Hogr Zainaddeen “Implementing industrial and agricultural waste materials to produce green concrete: a step towards sustainable construction,” Architecture, Structures and Construction, Vol.5, No. 1, March 2025. (Scopus).

https://doi.org/10.1007/s44150-025-00139-1

56. Zhu, Xuezhen; Dheyaaldin, Mahmood Hunar; Kianmehr, Peiman; Saeed, Najmadeen Mohammed; Kurda, Rawaz “Microstructural insights and sustainable utilisation of nano-alumina content in geopolymer mortar,” Proceedings of the Institution of Civil Engineers-Engineering Sustainability, Vol.179, No. 1, January 2025. (I. F. = 2.5).

https://doi.org/10.1680/jensu.24.00156

57. Omer, Bashdar; Saeed, Najmadeen Mohammed; Dheyaaldin, Mahmood Hunar; Jamal, Ahmed Salah; Kurda, Rawaz “Evaluating the long-term strength of GGBFS-blended cement across various water-to-binder and superplasticizer ratios under heating/cooling cycles,” PLOS ONE, Vol.20, No.7, July 2025. (I. F. = 3.3).

https://doi.org/10.1371/journal.pone.0319923

58. Jamal, Ahmed Salah; Omer, Bashdar; Dheyaaldin, Mahmood Hunar; Saeed, Najmadeen Mohammed “Assessing sulfuric acid resistance in sustainable GGBFS-cement composite,” Advances in Concrete Construction, Vol.20, No.3, September 2025. (I. F. = 1.7).

https://doi.org/10.12989/acc.2025.20.3.201

59. Manguri, Ahmed; Jankowski, R; Saeed, Najmadeen Mohammed; “Deformation mitigation and displacement control in steel scissor structures,” Advances in Steel and Steel–Concrete Composite Structures, Book Chapter, December 2025.

https://www.taylorfrancis.com/chapters/oa-edit/10.1201/9781003534464-32/deformation-mitigation-displacement-control-steel-scissor-structures-manguri-jankowski-saeed

60. Saeed, Najmadeen Mohammed; Ali, Barham Haidar; Dheyaaldin, Mahmood Huner; Hassan, Hogr Zainaddeen; Dheyaaldin, Ali Huner; Hassan, Mustafa Esmail; Omar, Kawyan Kawa “Effect of crushed and uncrushed aggregate ratios on the mechanical properties of polypropylene fiber-reinforced concrete,” Discover Civil Engineering, Vol.3, No.1., February 2026. https://doi.org/10.12989/acc.2025.20.3.201

61. Manguri, Ahmed; Saeed, Najmadeen Mohammed; Szczepanski, Marcin; Jankowski, Robert. “Deformation and bending moment mitigation through quasi-static adjustment in scissor structures,” Acta Mechanica, Vol.20, No.3, June 2026. (I. F. = 4.0).

https://doi.org/10.1007/s00707-026-04723-4

Conference Presentations

1. Najmadeen M. Saeed and Jalal Ahmed Saeed (2011), Shear Strength and Behavior of Crushed Stone High-Strength Reinforced Concrete Deep Beams. Talk presented at the 4th International Scientific Conference of Salahaddin University, Erbil, Kurdistan Region, Iraq.

2. Najmadeen M. Saeed, Alan S. Kwan (2014), Concepts for Morphing Aerofoil Sections Using Pantographic Structures. Talk presented at the 4th International Conference on Mobile, Adaptive, and Rapidly Assembled Structures, Ostend, Belgium.

3. Ahmed A. Manguri, Alan S. Kwan, and Najmadeen M. Saeed (2016), Adjustment for shape restoration and force control of cable arch-stayed bridges. Talk presented at the 5th International Conference on Mobile, Adaptive, and Rapidly Assembled Structures, Siena, Italy.

4. Najmadeen M. Saeed, Ahmed A. Manguri, Shna J. Abdulkarim, and Ali M. Shekha (2019), Shape Restoration of Deformed Egg-Shaped Single Layer Space Frames, a talk presented at the 2nd International Conference on Advanced Science and Engineering, which is technically sponsored by IEEE, Duhok, Kurdistan Region, Iraq.

5. Najmadeen M. Saeed, Ahmed A. Manguri, Serwan (2019), Optimum Geometry and Stress Control of Deformed Double Layer Dome for Gravity and Lateral Loads, Talk presented at the 7th International Engineering Conference “Research & Innovation amid Global Pandemic" (IEC), which is technically sponsored by IEEE, Erbil, Kurdistan Region, Iraq.

6. Ahmed A. Manguri, Najmadeen M. Saeed, and Barham (2019), Optimal Shape Refurbishment of Distorted Dome Structure with Safeguarding of Member Stress, Talk presented at the 7th International Engineering Conference “Research & Innovation amid Global Pandemic" (IEC), which is technically sponsored by IEEE, Erbil, Kurdistan Region, Iraq.

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