|
Ali, S., Ullah, S., Ahmad, U. M., Saif, U., Saleem, A., Malik, A., Ijaz, H., Amjad, S., (2026).
"Enhanced Xylanase Production by N-methyl-N-nitro-N-nitrosoguanidine, Mutated Aspergillus niger using Agricultural Waste."
International Journal of Agriculture & Biology,
35 (2),
1-7.
DOI:
https://doi.org/10.17957/IJAB/15.2435 |
|
Ahmed, S., Ullah, S., Asghar, N., Ahmed, W., (2025).
"Computational Analysis of Nipah Virus Transmission Using Mathematical Modelling and Graphical Programming."
BioNano Science,
15 (2),
.
DOI:
https://doi.org/10.1007/s12668-025-01804-x | Impact Factor:
3.2 |
|
Ullah, S., Ali, M., Bajwa, S., Bilal, A., (2025).
"Convergence and Ulam-Hyers-Rassias Stability Analyses of Numerical Solutions of Bratu Type Equations using Picard Method."
Scientific Inquiry and Review,
9 (3),
1-25.
DOI:
https://doi.org/10.32350/sir.93.01 |
|
Nasreen, S., Munir, T., Ullah, S., Zeb, H., Ahammad, A. N., Elkotb, A. M., (2025).
"Flow Dynamics Over Cylinder in Two-Dimensional Benchmark Problem: A finite Element Approximation."
Mathematical Methods in the Applied Sciences,
48 (3),
3956-3965.
DOI:
https://doi.org/10.1002/mma.10527 | Impact Factor:
1.8 |
|
Shahzaib, M., Azhar Ali Zafar, A. A., Ullah, S (2025).
"Fractional Order Analysis of Pulsatile Blood-Nanoparticle Flow in Femoral and Coronary Arteries under Magnetic and Thermal Influences."
Journal of Nanofluids,
14 (6),
820-827.
DOI:
https://doi.org/10.1166/jon.2025.2279 | Impact Factor:
2.2 [Link] |
|
Ali, S., Ullah, S., Amjad, S., Asghar, A., Muhammad, G. Y., Ammar, M., (2025).
"Harnessing Microbial Proteases as Versatile Tools for Industrial Bioprocessing."
International Journal of Biology and Biotechnology,
22 (3),
689-697.
|
|
Ahmed, S., Ullah, S., Rasool, T. F., (2025).
"Modeling the Dynamics of Monkeypox Epidemic via Classical and Fractional Derivatives."
Discover Public Health,
22 ,
426.
DOI:
https://doi.org/10.1186/s12982-025-00827-9 |
|
Ahmed, S., Ullah, S., Riaz, M., Ahmed, W., Sheikh, M., (2025).
"Numerical Analysis of Fractional Logistic Growth Models Using Computational Methods with MATLAB Codes."
International Journal of Applied and Computational Mathematics,
11 (5),
198.
DOI:
https://doi.org/10.1007/s40819-025-02003-8 |
|
Ahmed, S., Ullah, S., Rasool, T. F., (2025).
"Numerical Computations of Fractional Differential Equations in Engineering using the Polynomial Least Squares Method."
Journal of Prime Research in Mathematics,
21 (2),
13-24.
|
|
Ullah, S., Yaqub, F., Munir, T., Zeb, H., (2025).
"Optimal Semi-Analytical Solutions of Time-Fractional Evolution Equations."
Journal of Applied Mathematics and Computing,
71 (2),
1995 – 2015.
DOI:
https://doi.org/10.1007/s12190-024-02310-1 | Impact Factor:
2.7 |
|
Ashique, A., Afzal, U., Abdal, S., Ullah, S., Shah, N, A., Chung j. D., (2025).
"Optimization of Thermal Transfer in Casson Hybrid Nanofluids with Magnetohydrodynamics and Activation Energy Effects."
Alexandria Engineering Journal,
122 ,
255-267.
DOI:
https://doi.org/10.1016/j.aej.2025.02.067 | Impact Factor:
6.8 [Link] |
|
Ullah, S., Ali R., (2025).
"Stability Analysis of Semi-Analytical Technique for Time-Fractional Cauchy Reaction-Diffusion Equations."
Zeitschrift für Naturforschung A,
80 (3),
199-214.
DOI:
https://doi.org/10.1515/zna-2024-0201 | Impact Factor:
1.8 |
|
Afzal, U., Almutairi, B., Shah, A. N., Ullah, S., Abdullah, Chung, D. J., (2024).
"A Generalized Thermal Memory Effect of Caputo-Fabrizio Fractional Integral on Natural Convection Flow of Hybrid Nanofluid."
Modern Physics Letters B,
38 (11),
2450086.
DOI:
https://doi.org/10.1142/S0217984924500866 | Impact Factor:
2.2 |
|
Ullah, S., (2024).
"Closure to Discussion of Some Exact Analytical Solutions for Two-Dimensional Flow of an Incompressible Second Grade Fluid."
J. Fluids Eng.,
146 (12),
126001.
| Impact Factor:
2.4 |
|
Zaman, S., Kosar, Z., Ullah, S., Nawaz, A., (2024).
"Mathematical Aspects and Molecular Descriptors for Anti-Tumour and Anti-COVID Drugs Medications."
Molecular Physics,
122 (10),
.
DOI:
https://doi.org/10.1080/00268976.2023.2278702 | Impact Factor:
1.8 |
|
Ullah, S., Amin, F., Ali, M., (2024).
"Numerical Investigation with Convergence and Stability Analyses of Integro-Differential Equations of Second Kind."
International Journal of Computational Methods,
21 (3),
.
DOI:
https://doi.org/10.1142/S0219876223500366 | Impact Factor:
1.6 |
|
Munir, T., Din, A., Ullah, S., Malik, Y. M., Alqahtani, S. A., (2023).
"Discrete Mass Conservation and Stability Analysis of the Ocean-Atmosphere Model with Coupling Conditions."
Journal of Ocean Engineering and Science,
8 (6),
577-589.
DOI:
https://doi.org/10.1016/j.joes.2022.02.002 | Impact Factor:
11.8 |
|
Bajwa, S., Ullah, S., Al-Johani, S. A., Khan, I., Andualem, M., (2022).
"Effects of MHD and Porosity on Jeffrey Fluid Flow with Wall Transpiration."
Mathematical Problems in Engineering,
2022 (3),
6063143.
DOI:
https://doi.org/10.1155/2022/6063143 | Impact Factor:
1.43 |
|
Muhammad, N., Ullah, S., Khan, U., (2022).
"Energy Recovery Mechanism of Air Injection in Higher Methane Cut Reservoir."
International Journal of Modern Physics B,
36 (24),
2250153.
DOI:
https://doi.org/10.1142/S0217979222501533 | Impact Factor:
1.7 |
|
Chu, M. Y., Ullah, S., Ali, M., Tuzzahrah, G. F., Munir, T., (2022).
"Numerical Investigation of Volterra Integral Equations of Second Kind using Optimal Homotopy Asymptotic Method."
Applied Mathematics and Computation,
430 ,
127304.
DOI:
https://doi.org/10.1016/j.amc.2022.127304 | Impact Factor:
4.397 |
|
Ghaffar, F., Ullah, S., Badshah, N., Khan, A. N., (2021).
"A Higher-Order Unconditionally Stable Scheme for the Solution of Fractional Diffusion Equation."
Mathematical Methods in the Applied Sciences,
44 (4),
3004-3022.
DOI:
https://doi.org/10.1002/mma.6406 | Impact Factor:
1.8 |
|
Ullah, S., Zulfiqar, S., Buhader, A. A., Khan, A. N., (2021).
"Analysis of Caputo-Fabrizio Fractional Order Semi-Linear Parabolic Equations via Amalgamated Technique."
Physica Scripta,
96 (3),
035214.
DOI:
https://doi.org/10.1088/1402-4896/abd796 | Impact Factor:
2.6 [Link] |
|
Razzaq, A. O., Khan, A. N., Faizan, M., Ara, A., Ullah, S., (2021).
"Behavioral Response of Population on Transmissibility and Saturation Incidence of Deadly Pandemic through Fractional Order Dynamical System."
Results in Physics,
26 ,
104438.
DOI:
https://doi.org/10.1016/j.rinp.2021.104438 | Impact Factor:
4.6 |
|
Yin, J., Zhang, X., Hamid, A., Rehman, U. I. M., Yang, D., Ullah, S., (2021).
"Delineating Impact of Viscous Dissipation and Non-Uniform Heat Source/Sink on Viscous Fluid Flow Towards a Stretching Surface."
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engine,
,
.
DOI:
https://doi.org/10.1177/09544089211050461 | Impact Factor:
2.2 [Link] |
|
Yang, D., Rehman, U. I. M., Hamid, A., Ullah, S., (2021).
"Multiple Solutions for Stagnation-Point Flow of Unsteady Carreau Fluid along a Permeable Stretching/Shrinking Sheet with Non-Uniform Heat Generation."
Coatings,
11 (9),
1012.
DOI:
https://doi.org/10.3390/coatings11091012 | Impact Factor:
2.8 [Link] |
|
Tlili, I., Shah, A. N., Ullah, S., Manzoor, H., (2021).
"New Idea of Atangana- Baleanu Time-Fractional Derivative to Advection-Diffusion Equation."
Mathematical Methods in the Applied Sciences,
44 (3),
2521-2531.
DOI:
10.1002/mma.6123 | Impact Factor:
1.8 |
|
Ullah, S., Butt, K. I. A., Buhader, A. A., (2021).
"Numerical Investigation with Stability Analysis of Time-Fractional Korteweg-de Vries Equations."
Mathematical Methods in the Applied Sciences,
44 (4),
3111-3126.
DOI:
https://doi.org/10.1002/mma.6498 | Impact Factor:
1.8 |
|
Tanveer, M., Ullah, S., Shah, A. N., (2021).
"Thermal Analysis of Free Convection Flows of Viscous Carbon Nanotubes Nanofluids with Generalized Thermal Transport: A Prabhakar Fractional Model."
Journal of Thermal Analysis and Calorimetry,
144 ,
2327-2336.
DOI:
https://doi.org/10.1007/s10973-021-10643-3 | Impact Factor:
3.1 [Link] |
|
DeYang, D., Ullah, S., Tanveer, M., Farid, S., Rehman, U. I. M., Shah, A. N., Chung, D. J., (2021).
"Thermal Transport of Natural Convection Flow of Second Grade Bio-Nanofluid in a Vertical Channel."
Case Studies in Thermal Engineering,
28 ,
101377.
DOI:
https://doi.org/10.1016/j.csite.2021.101377 | Impact Factor:
6.4 |
|
Bajwa, S., Ullah, S., Khan, I., Asad, A. F. M., (2021).
"Transient Flow of Jeffrey Fluid over a Permeable Wall."
Mathematical Problems in Engineering,
2021 ,
9999949.
DOI:
https://doi.org/10.1155/2021/9999949 | Impact Factor:
1.43 |
|
Khan, A. N., Qureshi, A. M., Hameed, T., Akbar, S., Ullah, S., (2020).
"Behavioral Effects of a Four-Wing Attractor with Circuit Realization: A Cryptographic Perspective on Immersion."
Communications in Theoretical Physics,
72 (12),
125004.
DOI:
https://doi.org/10.1088/1572-9494/abb7d1 | Impact Factor:
2.9 |
|
Ghaffar, F., Ullah, S., Badshah, N., (2020).
"Multigrid Method with Eighth-Order Compact Finite Difference Scheme for Helmholtz Equation."
Physica Scripta,
95 (5),
055221.
DOI:
https://doi.org/10.1088/1402-4896/ab68fe | Impact Factor:
2.6 |
|
Ullah, S., Akhtar, K., Khan, A. N., Mubarik, M., (2020).
"Study of Free Convective Unsteady Magnetohydrodynamic Flow of Oldroyd-B Fluid in the Presence of Chemical Reaction."
Advances in Mechanical Engineering,
12 (7),
1-13.
DOI:
https://doi.org/10.1177/1687814020937518 | Impact Factor:
2.0 [Link] |
|
Ullah, S., Akhtar, K., Khan, A. N., Ullah, A., (2019).
"Analysis of Thin Film Flow of Generalized Maxwell Fluid Confronting Withdrawal and Drainage on Non-Isothermal Cylindrical Surfaces."
Advances in Mechanical Engineering,
11 (10),
1-19.
DOI:
https://doi.org/10.1177/1687814019881005 | Impact Factor:
2.0 |
|
Nisa, U. Z., Shah, A. N., Tlili, I., Ullah, S., Nazar, M., (2019).
"Natural Convection Flow of Second Grade Fluid with Thermal Radiation and Damped Thermal Flux between Vertical Channels."
Alexandria Engineering Journal,
58 (4),
1119 – 1125.
DOI:
https://doi.org/10.1016/j.aej.2019.09.014 | Impact Factor:
6.8 |
|
Ara, A., Khan, A. N., Sultan, F., Ullah, S., (2019).
"Numerical Simulation of Jeffery-Hamel flow of Bingham Plastic Fluid and Heat Transfer in the Presence of Magnetic Field."
Applied and Computational Mathematics,
18 (2),
135 – 148.
| Impact Factor:
4.3 [Link] |
|
Idrees, M., Muhammad, S., Ullah, S., (2019).
"Robust Hierarchical Sliding Mode Control with State-dependent Switching Gain for Stabilization of a Rotary Inverted Pendulum."
Kybernetika,
55 (3),
455 – 471.
DOI:
https://doi.org/10.14736/kyb-2019-3-0455 | Impact Factor:
2.2 [Link] |
|
Idrees, M., Ullah, S., Muhammad, S., (2019).
"Sliding Mode Control Design for Stabilization of Underactuated Mechanical Systems."
Advances in Mechanical Engineering,
11 (5),
1-10.
DOI:
https://doi.org/10.1177/1687814019842712 | Impact Factor:
2.0 |
|
Ullah, S., Tanveer, M., Bajwa, S., (2019).
"Study of Velocity and Shear Stress for Unsteady Flow of Incompressible Oldroyd-B Fluid between Two Concentric Rotating Circular Cylinders."
Hacettepe Journal of Mathematics and Statistics,
48 (2),
372 – 383.
DOI:
https://doi.org/10.15672/hujms.545240 | Impact Factor:
0.9 [Link] |
|
Uddin, I., Khan, A. M., Ullah, S., Islam, S., Israr, M., Hussain, F., (2018).
"Characteristics of Buoyancy Force on Stagnation Point Flow with Magneto-Nanoparticles and Zero Mass Flux Condition."
Results in Physics,
8 (3),
160 – 168.
DOI:
https://doi.org/10.1016/j.rinp.2017.10.038 | Impact Factor:
4.6 |
|
Khan, A. N., Naz, F., Khan, A. N., Ullah, S., (2018).
"MHD Nonaligned Stagnation Point Flow of Second Grade Fluid towards a Porous Rotating Disk."
Nonlinear Engineering,
8 (1),
231 – 249.
DOI:
https://doi.org/10.1515/nleng-2017-0063 | Impact Factor:
1.5 |
|
Khan, A. N., Saeed, B. U., Sultan, F., Ullah, S., Rehman, A., (2018).
"Study of Velocity and Temperature Distributions in Boundary Layer Flow of Fourth Grade Fluid over an Exponential Stretching Sheet."
AIP Advances,
8 (2),
025011.
DOI:
https://doi.org/10.1063/1.5014047 | Impact Factor:
1.4 |
|
Bhatti, I., Farid, S., Ullah, S., Riaz, S., Faryad, M., (2018).
"Surface Tension Effects on Fully Developed Liquid Layer Flow over a Convex Corner."
AIP Advances,
8 (4),
045206.
DOI:
https://doi.org/10.1063/1.5013197 | Impact Factor:
1.4 |
|
Khan, A. N., Khan, A. N., Ullah, S., Naz, F., (2018).
"Swirling Flow of Couple Stress Fluid Due to a Rotating Disk."
Nonlinear Engineering,
8 (1),
261 – 269.
DOI:
https://doi.org/10.1515/nleng-2017-0062 | Impact Factor:
1.5 [Link] |
|
Khan, A. N., Aziz, S., Ullah, S., (2017).
"Entropy Generation on MHD Flow of Powell-Eyring Fluid Between Radially Stretching Rotating Disk with Diffusion-Thermo and Thermo-Diffusion Effects."
Acta Mechanica et Automatica,
11 (1),
20 - 32.
DOI:
https://doi.org/10.1515/AMA-2017-0004 | Impact Factor:
1.1 |
|
Tanveer, M., Ullah, S., Khan, A. N., Khan, A. N., Rehman, N., (2017).
"MHD Flow of Generalized Oldroyd-B Fluid Over an Infinite Oscillating Plate with Slip Condition Using Fox H-Function."
J. Comput. Theor. Nanosci.,
14 (3),
1362 – 1370.
DOI:
https://doi.org/10.1166/jctn.2017.6458 | Impact Factor:
1.666 |
|
Ullah, S., Khan, A. N., Bajwa, S., Khan, A. N., Tanveer, M., Liaqat, K., (2017).
"Some Exact Solutions for the Rotational Flow of Oldroyd-B Fluid Between Two Circular Cylinders."
Advances in Mechanical Engineering,
9 (8),
1-15.
DOI:
https://doi.org/10.1177/1687814017724702 | Impact Factor:
2.0 |
|
Khan, A. M., Ullah, S., Ching, L. C. D., Khan, I., Ullah, S., Islam, S., Gul, T., (2016).
"A Mathematical Study of an Epidemic Disease Model Spread by Rumors."
J. Comput. Theor. Nanosci.,
13 (5),
2856 – 2866.
DOI:
https://doi.org/10.1166/jctn.2016.4929 | Impact Factor:
1.666 |
|
Mahmood, S., Khan, H. U. A., Ullah, S., (2016).
"Assessment of 2010 Flash Flood Causes and Associated Damages in Dir Valley Khyber Pakhtunkhwa Pakistan."
International Journal of Disaster Risk Reduction,
16 ,
215 – 223.
DOI:
https://doi.org/10.1016/j.ijdrr.2016.02.009 | Impact Factor:
4.5 [Link] |
|
Khan, M., Ullah, S., Al-Hossain, A. Y., Bashir, N., (2015).
"Improved Ratio-Type Estimators using Maximum and Minimum Values under Simple Random Sampling Scheme."
Hacettepe Journal of Mathematics and Statistics,
44 (4),
923 – 931.
| Impact Factor:
0.9 [Link] |
|
Khan, A. N., Khan, S., Ullah, S., (2015).
"MHD Flow of Burger’s Fluid over an Off-Centred Rotating Disk in a Porous Medium."
AIP Advances,
5 (8),
087179.
DOI:
https://doi.org/10.1063/1.4929972 | Impact Factor:
1.4 [Link] |
|
Ullah, S., (2015).
"Some Exact Analytical Solutions for Two-Dimensional Flow of an Incompressible Second Grade Fluid."
J. Fluids Eng.,
137 (10),
101206.
DOI:
https://doi.org/10.1115/1.4030491 | Impact Factor:
2.4 |
|
Ullah, S., Maqbool, I., (2015).
"Some Exact Solutions to Equations of Motion of an Incompressible Second Grade Fluid."
J. Fluids Eng.,
137 (1),
011205.
DOI:
https://doi.org/10.1115/1.4027826 | Impact Factor:
2.4 [Link] |
|
Ullah, S., Ullah, A., Iqbal, M. M., (2015).
"Withdrawal and Drainage of Thin Film Flow of a Generalized Oldroyd-B Fluid on Non-Isothermal Cylindrical Surfaces."
AIP Advances,
5 (12),
127242.
DOI:
https://doi.org/10.1063/1.4939634 | Impact Factor:
1.4 [Link] |
|
Ullah, S., (2013).
"Two-Level Decay Quantum System with Open-Loop Control Optical Field."
Journal of the Optical Society of America B,
30 (2),
428 – 430.
DOI:
https://doi.org/10.1364/JOSAB.30.000428 | Impact Factor:
1.9 [Link] |
|
Borisenok, S., Saifullah (2011).
"Linear Feedforward Control of Two-Level Quantum System by Modulated External Field."
Optics Communications,
284 (14),
3562 – 3567.
DOI:
https://doi.org/10.1016/j.optcom.2011.03.019 | Impact Factor:
2.5 [Link] |
|
Mahmood, A., Saifullah, Rubab, Q., (2008).
"Exact Solutions for a Rotational Flow of Generalized Second Grade Fluids through a Circular Cylinder."
Buletinul Academiei De Stiinte A Republicii Moldova Matematica,
58 (3),
9 – 17.
|
|
Saifullah (2008).
"Feedback Control of Probability Amplitudes for Two – Level Atom in Optical Field."
Optics Communications,
281 (4),
640 – 643.
DOI:
https://doi.org/10.1016/j.optcom.2007.10.003 | Impact Factor:
2.5 [Link] |
|
Mahmood, A., Saifullah, Bolat, G., (2008).
"Some Exact Solutions for the Rotational Flow of a Generalized Second Grade Fluid between Two Circular Cylinders."
Archives of Mechanics,
60 (5),
385-401.
DOI:
https://doi.org/10.48550/arXiv.0803.4265 | Impact Factor:
1.2 [Link] |
|
Ullah, S., (2008).
"Some Exact Solutions to Equations of Motion of an Incompressible Third Grade Fluid."
J. Fluids Eng.,
130 (6),
061401.
DOI:
https://doi.org/10.1115/1.2928407 | Impact Factor:
2.4 [Link] |
|
Borisenok, S., Saifullah (2007).
"Example of Open-Loop Control in Quantum Optics: Two - Level Atom in Modulated Optical Field."
Physics at Schools and Higher Educational Establishments. The International Collection of Scientific,
6 ,
18-21.
|
|
Pozdnyakov, S., Saifullah (2007).
"Mathematical Computer Tools in Preparing of Professional Mathematicians."
Math Track,
3 ,
78 - 90.
|
|
Ullah, S., Borisenok, S., Rozhdestvensky, Yu, V., (2007).
"Shell Model of Open-Loop Optical Control for Atomic Beam Focusing in Momentum Space."
Proc. Int. Conf. Phys. Cont.,
PhysCon’ 07 ,
1340 – 1344.
|
|
Ahmad, B., Borisenok, S., Saifullah, Rozhdestvensky, Yu, V., (2006).
"Open-Loop Control of Quantum Particle Motion: Effective Splitting in Momentum Space."
Journal of Prime Research in Mathematics,
2 ,
208 – 216.
|