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  1. No Access

    Article

    Optical solitary waves solutions of the eight-order dispersive Schrödinger wave equation

    The nonlinear dispersive eighth-order Schrödinger equation is a mathematical equation that describes the behaviour of complex wave phenomena in specific physical systems. It is utilised in the fields of nonlin...

    Sajjad Ali, Meraj Ali Khan, Aman Ullah in Optical and Quantum Electronics (2024)

  2. No Access

    Article

    Enhancing Five-Axis Machine Tool Performance Through ESG-Based Design Optimization

    Today’s economic environment, the machine tool industry continually focuses on enhancing performance while reducing costs, conserving energy, and minimizing environmental impacts. This study employs a CAD-gene...

    Aman Ullah, Tzu-Chi Chan, Shinn-Liang Chang in International Journal of Precision Enginee… (2024)

  3. No Access

    Article

    Strategy and computational examination of surface grinding machine with predictive diagnostic performance system during operation

    Surface grinding is critical for producing precise workpiece dimensions and surface finishes, especially for materials like cast iron and steel. Optimal grinding materials must reliably cling to magnetic chuck...

    Tzu-Chi Chan, Aman Ullah, Arindam Dutta in The International Journal of Advanced Manu… (2024)

  4. No Access

    Article

    Exploring community detection methods and their diverse applications in complex networks: a comprehensive review

    Network science has made tremendous advances, allowing the modeling of complex real-world systems. Although networks include sophisticated community structures by definition, discovering and understanding thes...

    Faiza Riaz Khawaja, Zu** Zhang, Yumna Memon in Social Network Analysis and Mining (2024)

  5. No Access

    Article

    Exogenously Applied γ-Aminobutyric Acid Improves Salt Tolerance in Alfalfa by Modulating Ion Homeostasis, Proline Accumulation and Antioxidant Defence System

    Salt stress is one of the major environmental stresses that limit plant growth and productivity. Gamma-aminobutyric acid (GABA), a non-proteinogenic amino acid, modulates plant responses and improves tolerance...

    Safaa Mohammed Al-Farsi, Aman Ullah in Journal of Soil Science and Plant Nutrition (2024)

  6. No Access

    Article

    Integrating numerical techniques and predictive diagnosis for precision enhancement in roller cam rotary table

    Currently, various industries are increasingly trending towards multi-axis machining and Industry 4.0. As a result, the demand for machining flexibility, speed, and precision in machine tools is also rising. D...

    Tzu-Chi Chan, Shao-Chi Wu, Aman Ullah in The International Journal of Advanced Manu… (2024)

  7. Article

    Open Access

    Thiourea improves yield and quality traits of Brassica napus L. by upregulating the antioxidant defense system under high temperature stress

    High temperature stress influences plant growth, seed yield, and fatty acid contents by causing oxidative damage. This study investigated the potential of thiourea (TU) to mitigate oxidative stress and restori...

    Muhammad Ahmad, Ejaz Ahmad Waraich, Usman Zulfiqar in Scientific Reports (2024)

  8. No Access

    Article

    Leveraging neighborhood and path information for influential spreaders recognition in complex networks

    The study of influential spreaders has become a growing area of interest within network sciences due to its critical implications in understanding the robustness and vulnerability of complex networks. There is...

    Aman Ullah, **Fang Sheng, Bin Wang in Journal of Intelligent Information Systems (2024)

  9. No Access

    Article

    Improving machining accuracy of complex precision turning-milling machine tools

    To improve stability and accuracy during machining, the structural performance of machine tools must be predicted in advance. This study aims to improve the performance of a large-scale turning-milling complex...

    Tzu-Chi Chan, Jyun-De Li, Umar Farooq in The International Journal of Advanced Manu… (2024)

  10. No Access

    Article

    Numerical technique with innovative strategies for performance enhancement in micro-probe measuring equipment

    Computer-aided techniques and numerical testing-related technologies have been widely used in recent years. Among them, stress analysis is the most commonly used. Many industries require the application of mec...

    Tzu-Chi Chan, Han-Huei Lin, Aman Ullah, Chia-Chuan Chang in Microsystem Technologies (2024)

  11. No Access

    Article

    Exploring optical soliton solutions of a self-focusing nonlinear Schrödinger equation by two effective techniques

    In this manuscript, we have conducted a comprehensive investigation of the self-focusing Schrödinger equation with fourth-order dispersion, yielding closed-form results for crucial optical soliton solutions. T...

    Shafiq Ahmad, Maha Alammari, Aman Ullah, Shabir Ahmad in Optical and Quantum Electronics (2023)

  12. Article

    Open Access

    Kee** their own and integrating the other: medicinal plant use among Ormurs and Pathans in South Waziristan, Pakistan

    In multicultural societies, traditional knowledge among minorities faces several challenges. Minority groups often face difficult situations living in specific peripheral geographies and striving to retain the...

    Muhammad Abdul Aziz, Musheerul Hassan in Journal of Ethnobiology and Ethnomedicine (2023)

  13. No Access

    Article

    The second-order bias and mean squared error of quantile regression estimators

    The finite sample theory using higher order asymptotics provides better approximations of the bias and mean squared error (MSE) for a class of estimators. Rilston, Srivastava and Ullah (1996) provided the second-...

    Tae-Hwy Lee, Aman Ullah, He Wang in Indian Economic Review (2023)

  14. No Access

    Article

    Effect of spatial moving structure and topology optimization of the CNC turning machine tools

    In order to enhance the accuracy and productivity of CNC machine tools, the finite element method (FEM) is utilized for analyzing machining operations and machine tool structures. Through this approach, it bec...

    Tzu-Chi Chan in The International Journal of Advanced Manu… (2023)

  15. No Access

    Article

    Exploration of optical solitons of a hyperbolic nonlinear Schrödinger equation

    The investigation of optical solitons, a subject of significant interest in fibre optics and communications due to its importance in signal transmission and data processing, is the focus of the study. For the ...

    Shafiq Ahmad, Shabir Ahmad, Meraj Ali Khan, Aman Ullah in Optical and Quantum Electronics (2023)

  16. Article

    Open Access

    A modified class of Ostrowski-type inequalities and error bounds of Hermite–Hadamard inequalities

    This paper aims to extend the application of the Ostrowski inequality, a crucial tool for figuring out the error bounds of various numerical quadrature rules, including Simpson’s, trapezoidal, and midpoint rul...

    Miguel Vivas-Cortez, Muhammad Samraiz in Journal of Inequalities and Applications (2023)

  17. No Access

    Article

    Higher Intercellular CO2 Concentration is Associated with Improved Water Use Efficiency and Drought Tolerance in Bread Wheat

    In this study, the response of bread wheat genotypes to drought stress was evaluated on physiological and morphological basis. A group of 53 bread wheat genotypes, of diverse origin and morphology, was grown u...

    Aman Ullah, Abdullah M. Al-Sadi, Muhammad Farooq in Gesunde Pflanzen (2023)

  18. No Access

    Article

    Sedimentological Attributes of the Middle Jurassic Samana Suk Formation Exposed in Village Rani-Wah Haripur, Southern Hazara Basin (NW Himalayan Fold and Thrust Belt, Pakistan)

    The studied section of the middle Jurassic Samana Suk Formation exposed at Village Rani-Wah near Bestway Cement Factory, Haripur represents the part of southern Hazara Basin in the northwestern Himalayan Fold ...

    Muhammad Ramzan, Aman Ullah, Tofeeq Ahmad in Lithology and Mineral Resources (2023)

  19. No Access

    Article

    Thermal stability study of catalyst (CuO/ZnO) supported on phenyl polyhedral oligomeric silsesquioxanes

    The stability of heterogeneous catalytic systems is critical for their long-term. Therefore, the thermal degradation behaviors of CuO/ZnO supported on octaphenyl and dodecaphenyl polyhedral oligomeric silsesqu...

    Yanet Rodriguez Herrero, Aman Ullah in Journal of Thermal Analysis and Calorimetry (2023)

  20. No Access

    Article

    Environmental regulation, renewable electricity, industrialization, economic complexity, technological innovation, and sustainable environment: testing the N-shaped EKC hypothesis for the G-10 economies

    This study examines the validity of the environmental Kuznets curve (EKC) hypothesis and the role of environmental regulation, renewable electricity, industrialization, economic complexity, and technological i...

    Aman Ullah, Saeedullah Khan in Environmental Science and Pollution Resear… (2023)

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