Ferdous M. Tawfiq

Dr. Ferdous M. Tawfiq

King Saud University, College of Medicine, Riyadh, Ar Riyāḑ, Saudi Arabia
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Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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7 December 2022 in Applied Sciences
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Željko StevićŽeljko Stević
Željko Stević
Edmundas Kazimieras ZavadskasEdmundas Kazimieras Zavadskas
Edmundas Kazimieras Zavadskas
FTFerdous M. Tawfiq
Ferdous M. Tawfiq
FTFairouz Tchier
Fairouz Tchier
Tatjana DavidovTatjana Davidov
Tatjana Davidov
Order-picking process management is one of the most demanding tasks within the operations of a warehouse system. It is especially evident in companies that have a high intensity of product flows, so the question of increasing the productivity of order picking arises. In this paper, a novel integrated fuzzy MCDM (Multicriteria Decision-Making) model was developed for the evaluation and selection of information technologies for order picking in a warehouse system, which is one of the most important novelties and contributions of the paper. Barcode, pick-to-light, pick-to-voice, and pick-to-vision technologies were evaluated based on IMF SWARA (improved fuzzy stepwise weight assessment ratio analysis) and fuzzy EDAS (evaluation based on distance from average solution) based on Z numbers. IMF SWARA-Z was applied to determine the importance of four criteria while the information technologies for order picking were evaluated with the fuzzy EDAS-Z method. The averaging of the estimates of the critera and alternatives was performed using the fuzzy Dombi aggregator. The results show that in this particular case under these research conditions, pick-to-vision is the best order-picking technology. Subsequently, validation tests were carried out, and they included the simulation of criteria weights and the impact of the reverse rank matrix.

28 September 2023 in Symmetry
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HTHuo Tang
Huo Tang
Muhammad ArifMuhammad Arif
Muhammad Arif
MAmuhammad abbas
muhammad abbas
FTFerdous M. Tawfiq
Ferdous M. Tawfiq
Sarfraz Nawaz MalikSarfraz Nawaz Malik
Sarfraz Nawaz Malik
The basic aspect of the research on coefficient problems for numerous families of univalent functions is to describe the coefficients of functions in a specific family by the coefficients of the Carathéodory functions. Thus, in utilizing the inequalities that are known for the class of Carathéodory functions, coefficient functionals may be examined. Several coefficient problems will be addressed in this study by utilizing the methodology for the abovementioned functions’ family. The family of starlike functions with respect to symmetric points connected to a three-leaf-shaped image domain is the topic of our investigation.

28 September 2023 in Fractal and Fractional
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NKNazar Khan
Nazar Khan
KKKashif Khan
Kashif Khan
FTFerdous M. Tawfiq
Ferdous M. Tawfiq
Jongsuk RoJongsuk Ro
Jongsuk Ro
Isra Al-shbeilIsra Al-shbeil
Isra Al-shbeil
In this paper, we use the concept of quantum (or q-) calculus and define a q-analogous of a fractional differential operator and discuss some of its applications. We consider this operator to define new subclasses of uniformly q-starlike and q-convex functions associated with a new generalized conic domain, Λβ,q,γ. To begin establishing our key conclusions, we explore several novel lemmas. Furthermore, we employ these lemmas to explore some important features of these two classes, for example, inclusion relations, coefficient bounds, Fekete–Szego problem, and subordination results. We also highlight many known and brand-new specific corollaries of our findings.

31 October 2023 in Symmetry
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MKmuhammad ghaffar khan
muhammad ghaffar khan
Bilal KhanBilal Khan
Bilal Khan
JGJianhua Gong
Jianhua Gong
FTFairouz Tchier
Fairouz Tchier
FTFerdous M. Tawfiq
Ferdous M. Tawfiq
This paper presents a geometric approach to the problems in differential subordination theory. The necessary conditions for a function to be in various subfamilies of the class of starlike functions and the class of Carathéodory functions are studied, respectively. Further, several consequences of the findings are derived.

1 February 2021 in Mathematics
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FTFairouz Tchier
Fairouz Tchier
Ioannis DassiosIoannis Dassios
Ioannis Dassios
FTFerdous M. Tawfiq
Ferdous M. Tawfiq
LRLakhdar Ragoub
Lakhdar Ragoub
In this paper, we apply the pseudospectral method based on the Chebyshev cardinal function to solve the parabolic partial integro-differential equations (PIDEs). Since these equations play a key role in mathematics, physics, and engineering, finding an appropriate solution is important. We use an efficient method to solve PIDEs, especially for the integral part. Unlike when using Chebyshev functions, when using Chebyshev cardinal functions it is no longer necessary to integrate to find expansion coefficients of a given function. This reduces the computation. The convergence analysis is investigated and some numerical examples guarantee our theoretical results. We compare the presented method with others. The results confirm the efficiency and accuracy of the method.

8 September 2023 in Axioms
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MKmuhammad ghaffar khan
muhammad ghaffar khan
Bilal KhanBilal Khan
Bilal Khan
FTFerdous M. Tawfiq
Ferdous M. Tawfiq
Jongsuk RoJongsuk Ro
Jongsuk Ro
In this paper, we investigate sharp coefficient functionals, like initial four sharp coefficient bounds, sharp Fekete–Szegö functionals, and, for n=1 and 2, sharp Zalcman functionals are evaluated for class of functions associated with tangent functions. Furthermore, we provide some majorization results for some non-vanishing holomorphic functions, whose ratios are related to various domains in the open unit disk.