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Engineering and Applied Science Letters (EASL)

The Engineering and Applied Science Letters (EASL) (2617-9709 Online, 2617-9695 Print) is an international peer-reviewed journal dedicated to publishing scientifically valid primary research across all areas of engineering and applied sciences. It provides a platform for both theoretical and applied contributions, supporting the advancement of interdisciplinary knowledge.

  • Open Access: EASL follows the Diamond Open Access model—completely free for both authors and readers, with no APCs. Articles are freely accessible online without financial, legal, or technical barriers.
  • Visibility: Specific details on visibility are not provided, but articles are published online immediately upon acceptance.
  • Rapid Publication: Accepted papers are published online immediately in the currently running issue, ensuring timely dissemination.
  • Scope: Publishes scientifically valid primary research from all areas of engineering and applied sciences.
  • Publication Frequency: One volume with four issues per year (March, June, September, December).
  • Indexing: Indexed in WorldCat, Scilit, Dimensions, ROAD, Publons, Crossref, ZDB, Wikidata, SUDOC, OpenAlex, EZB, and FATCAT, ensuring wide accessibility and scholarly recognition.
  • Publisher: Ptolemy Scientific Research Press (PSR Press), part of the Ptolemy Institute of Scientific Research and Technology.

Latest Published Articles

Igbozulike A. O.1, Paul T.1, Oke E. O.2, Onyedikachi U. B.3, Ukaegbu-Obi K. M.4, Okafor-Yadi O.1
1Department of Agricultural and Bioresources Engineering, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria
2Department of Chemical Engineering, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria
3Department of Biochemistry, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria
4Department of Microbiology, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria
Abstract:

Producing composite flour for baking requires a good understanding of the characteristics that ensures smooth processing and handling. Characteristics such as particle size, flowability, and thermal properties play a crucial role in maintaining the quality, stability, and safety of the final product. The objective of this study is to produce and evaluate the characteristics of composite flour made from 70% wheat flour and 30% sologold sweet potato flour, using a completely randomized design and standard scientific methods for analysis. The results showed that wheat flour had an average particle size of 411.16 µm, while sologold sweet potato flour had 351.97 µm. The finer particle size of the sweet potato flour makes it easier to mix and evenly blend with wheat flour. The Carr index (6.0 CL%) and Hausner ratio (1.06 HR) indicated that the composite flour had excellent free-flowing properties. The composite flour samples had moisture content ranging from 11.90% to 9.60% (dry basis). Other properties are bulk density which was between 480 and 390 kg/m³, specific heat capacity from 2.10 to 1.95 kJ/kg·K, thermal conductivity between 0.15 and 0.11 W/m·K, and thermal diffusivity from 0.09 to 0.06 m²/s. Understanding these characteristics will help ensure that the composite flour be processed efficiently while remaining stable and safe for use.

E.L. Pankratov1,2
1Nizhny Novgorod State Agrotechnical University, 97 Gagarin avenue, Nizhny Novgorod, 603950, Russia
2Nizhny Novgorod Institute Railway Transport, 3 Komsomol square, Nizhny Novgorod, 603950, Russia
Abstract:

In this paper we introduce an approach to increase density of field-effect heterotransistors in the framework of the three-stage differential amplifier. In the framework of the approach we consider manufacturing the amplifier in heterostructure with specific configuration. Several required areas of the heterostructure should be doped by diffusion or ion implantation. After that dopant and radiation defects should by annealed framework optimized scheme. We also consider an approach to decrease value of mismatch-induced stress in the considered heterostructure. We introduce an analytical approach to analyze mass and heat transport in heterostructures during manufacturing of integrated circuits with account mismatch-induced stress.

Bhagyashree Biswal1, Manoja Das1, Debadutta Das2
1School of Sciences, Gandhi Institute of Engineering and Technology University, Gunupur, Odisha-765022, India
2School of Sciences, Buxi Jagabandhu Bidyadhar Autonomous College, BJB Nagar, Bhubaneswar-751014, Odisha, India
Abstract:

Muga silk is the most important composite material used in textile manufacturing in India. Muga silk is derived from the Muga silkworms, namely Antheraea assamensis Helfer. The golden yellow silk yarn is the fanciest because it has strange properties like being able to handle different textures well, being bright, and lasting a long time. Fibrin (a fibrous protein) and sericin (a globular protein) are the two most important protein units that make up silk. To make silk usable in the textile business, sericin, a gum, has to be cleaned off the surface of the silk. Generally, surface active agents are used in the extraction of sericin from silk material. The present research describes a comparison between the degumming activity of a natural surfactant saponin isolated from Sapindus laurifolia and Sapindus laurifolia-\(Na_{2}CO_{3}\) mixed system. The effect of the salt \(Na_{2}CO_{3}\) on the degumming ability of Sapindus laurifolia is systematically studied and reported. The surface morphology of the raw and degummed silk fibers is compared using scanning electron microscope.

Muhammad Asad Ahmad1, Anwar Khalil Sheikh2, Shahid Naseem3
1Faculty of Engineering, Lincoln University College, Selangor, Malaysia
2Mechanical Department of KFUPM, KSA
3University of Education, Lahore, Pakistan
Abstract:

Gas Tungsten Arc welding (GTAW) widely uses for many welding applications, especially for good quality welds in fabrication, manufacturing, and construction industries. Perfection level exhibits by the weld are associated with the entire volume of the weld, its profile, surface appearance, and microstructure and show the quality of that weld. Several controllable process parameters may affect the quality of weld in terms of weld shape, bead, imperfections, and desire mechanical/chemical properties. Therefore effect of some important parameters like current, travel speed, and gas flow rate on the final weld structure and its quality for SS TP304L material are studied through different experiments and analyses by using a design of experiment-based advanced statistical tools. Joints weld by using several levels of these parameters and then weld quality of these joints analyze in terms of ultimate tensile strength, and hardness. The optimization results of different statistical techniques compare to find the accuracy of this study. Moreover, the microstructure of final weldment welded based on optimal results is also analyzed. Therefore this study finds out the best welding conditions for the quality weld after optimizing these process parameters.

Fatima Zahra1, Hafiz Inam ul Haq1, Muhammad Haroon1
1Department of Mathematics, University of Management and Technology Lahore, 54770 Pakistan
Abstract:

The optimal selection of a site for cement plant development is a multifaceted decision-making process that demands careful consideration of environmental, economic, and social dimensions. This research delves into the utilization of Circular Intuitionistic Fuzzy Soft Sets (CIFSS) as an advanced mathematical framework to enhance the precision and reliability of sustainable decision-making in cement plant site selection. The CIFSS approach adeptly manages the inherent uncertainties and ambiguities associated with evaluating potential locations, offering a comprehensive methodology for assessing various criteria. By embedding CIFSS within the context of sustainable development, this technique provides decision-makers with a robust and adaptable tool for identifying the most appropriate site, thereby ensuring long-term viability and minimizing environmental impacts. The results underscore the effectiveness of CIFSS in facilitating complex, multi-criteria decision-making in industrial site selection, underscoring its broader applicability in sustainable infrastructure planning.

T. Radha Krishnaveni1, G. Venkata Ramana Reddy2
1Research Scholar, Department of Mathematics, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur (Dt), Andhra Pradesh, India-522302
2Department of Mathematics, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur (Dt), Andhra Pradesh, India-522302
Abstract:

This research investigates the influence of the Cattaneo-Christov double diffusive flow of ferromagnetic hybrid nanofluids, taking into account heterogeneous-homogeneous chemical reactions, heat radiative flux, and the Soret-Dufour effect. The mathematical modeling of the system of equations results in the formulation of partial differential equations (PDEs). These PDEs were subsequently transformed into total differential equations (ODEs) via the application of similarity transformation. The resultant modified ODEs were addressed utilizing an innovative approach known as the spectral relaxation method (SRM). This methodology was employed to solve the system of ODEs in an iterative manner, following the Gauss-Seidel procedure. The findings of this investigation indicate that the heterogeneous-homogeneous chemical reaction significantly influences the fluid concentration, leading to a reduction in the concentration profile. An elevated level of thermal radiation was found to enhance both the fluid temperature and the velocity contour. Conversely, an increase in the magnetic field strength was noted to diminish the velocity contour. The current analysis was compared with previous studies and was found to exhibit a strong correlation.

H. Baïche1,2, B. Meftah3, A. Berkane2
1Université 20 août 1955 Skikda Bp 26 Route El-Hadaiek 21000 Skikda, Algeria
2Department of Mathematics, Faculty of Sciences, University of Badji Mokhtar–Annaba, Algeria
3Département des Mathématiques, Faculté des math ématiques, de l’informatique et des sciences de la matière, Universit é 8 mai 1945 Guelma, Algeria.
Abstract:

In this paper, by using a new identity we establish some trapezoidal type inequalities for functions whose modulus of the first derivatives are \( \left( s,m\right)\)-preinvex via Caputo fractional derivatives.

Neeraj R Prasad1, Sudhir Desai1, Mrunalini Jagtap1
1Shivaji University, Vidya Nagar, Kolhapur, Maharashtra 416004, India
Abstract:

This review provides a comprehensive overview of the synthesis process of nanoscale materials and highlights key characterization methods used for nanomaterials and biomaterials. It emphasizes the importance of effective techniques for investigating materials at the nanoscale, as these are too small for the human eye to detect. The review also explores various approaches to producing nanoscale materials and offers insights into the application, development, advantages, and limitations of different experimental methods for nanoparticle characterization. A particular focus is placed on advanced characterization techniques and their role in data interpretation, aiming to guide novice researchers in the field of nanoscience and nanotechnology.

Tristram de Piro1
1Flat 3, Redesdale House, 85 The Park, Cheltenham, GL50 2RP.
Abstract:

We consider non oscillatory functions and prove an everywhere Fourier Inversion Theorem for functions of very moderate decrease. The proofs rely on some ideas in nonstandard analysis.

M. A. Ramadan1, M.M. A. Mansour2, N. M. El-Shazly1, H. S. Osheba1
1Mathematics and Computer Science Department, Faculty of Science, Menoufia University, Egypt.
2Department of basic science, Modern Academy of Computer Science and Management Technology in Maadi, Egypt.
Abstract:

To solve the approximate analytic solutions of the quadratic Riccati differential equations, this study introduces a hybrid method that combines an accelerated variant of the Adomian decomposition method (AADM) proposed by I. El-Kalla with the Ramadan Group transform (RGT). This hybrid technique produces accurate and dependable results, outperforming the regular Adomian decomposition method (RADM) and the Newton- Raphson version of Adomian polynomials in terms of accuracy. Three examples are provided here to demonstrate good accuracy and fast convergence when compared to the exact solution and other recent analytical methods using Shifted Chebyshev polynomials, Variation of Parameters Method (VPM), Bezier polynomials, homotopy analysis method (HAM), and Newton – Raphson based modified Laplace Adomian decomposition method.

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