Summary: A mathematical model of a queuing-inventory system (QIS) with catastrophes is built. Incoming customers form a Poisson flow with rate λ. The customer servicing time in the considered QIS is zero. The (S,Q) replenishment policy is used to increase the inventory level in the system. Here, S is the maximum storage size of the QIS, and Q=S-s indicates the fixed size of the proposed order.
Summary: Pneumonia is a prevalent illness that has a global impact, primarily affecting children and older individuals. Timely identification is essential for immediate intervention, particularly in regions with restricted healthcare availability. The purpose of this paper is to compare how well two methods work for finding pneumonia on chest X-rays creating a custom Convolutional Neural Network (CNN) and using a model that has been pre-trained, such as ResNet-50. The results indicated that although the customized CNN had difficulties achieving satisfactory performance, the ResNet-50 model demonstrated encouraging outcomes following the process of fine-tuning. This paper seeks to improve the detection of pneumonia, especially in disadvantaged places with limited medical resources, by utilizing modern technologies such as deep learning and pre-trained models. Considering the results gained to enhance patient outcomes and decrease mortality rates associated with pneumonia by enabling more precise and prompt detection, this has a beneficial effect on global public health
Summary: This work is dedicated to the impulsive Sturm - Liouville operator on the whole
axis with complex almost periodic potentials and the discontinuous coefficient
on the right – hand side. We investigated the main characteristics of the
fundamental solutions of the Sturm – Liouville equation. From the impulsive
condition we found the transfer matrix. Using the impulsive condition and
transfer matrix, we constructed Green’s function and obtained the resolvent of
the impulsive Sturm – Liouville operator. In future works, eigenvalues of the
impulsive Sturm - Liouville operator will be investigated. The inverse problem
will be formulated, a constructive procedure for the solution of the inverse
problem will be provided.
Summary: Artificial intelligence driven drone systems offer promising solutions for early detection and response to environmental hazards like wildfires and oil leaks. However, their widespread adoption raises significant ethical and environmental implications, including privacy infringements, algorithmic bias, data security, noise pollution, and greenhouse gas emissions. This study addresses these issues through literature reviews, surveys of affected populations, and prototype testing of AI models for disaster identification, in order to mitigate ethical issues. A specific metric was developed to rate drone components and identify the most sustainable options, minimizing the environmental impact. By promoting these solutions, this research aims to ensure the sustainable and responsible integration of artificial intelligence systems in environmental monitoring, protecting ecosystems and communities effectively.
Summary: The paper considers a boundary value problem generated by a differential
diffusion equation and nonseparated boundary conditions. One of the boundary
conditions contains a quadratic function of the spectral parameter. The
multiplicity of eigenvalues of the boundary value problem under consideration is
investigated. A criterion for the multiplicity of eigenvalues and zeros of the
characteristic function of a boundary value problem is obtained.The found
necessary and sufficient conditions are expressed through the values of the
fundamental solutions of the diffusion equation and the coefficients of the
boundary conditions. Note that the results obtained can be used in the study of
direct and inverse problems of spectral analysis for various differential operators.
These results also play an important role in studying the structure of the
spectrum, in establishing the order of arrangement of eigenvalues of boundary
value problems, and in finding sufficient conditions for the reconstruction of the
corresponding problems.
Summary: In this article, the issue of controlling the movement of a hexacopter-type unman-ned aerial vehicle (UAV) along a route is investigated. The movement of the hexacopter is modeled as the movement of a rigid body, and in this process, the forces of gravity and aerodynamic resistance are taken into account. The spatial orientation of the hexacopter is expressed using quaternions. The movement route is considered as a broken line consisting of straight segments, and the parameters controlling its flight are determined when one of the hexacopter's motors is not working. Mathematical justification is provided for how the operational motors are controlled to continue the hexacopter's movement in its previous manner when one motor fails.
Summary: The paper examines different types of hypersingular integrals with the Cauchy kernel on a segment and a unit circle and defines them using specific methods. It presents more general definitions for one-dimensional hypersingular integrals with the Cauchy kernel based on Hadamard's integral in the sense of a finite part. The paper also establishes the existence theorems of these hypersingular integrals and formulas, which demonstrates the accuracy of the resulting integrals that are applied in various applications and engineering problem-solving. The proposed formulas are straightforward to calculate, making the new approximate method reliable and easy to apply and the obtained numerical results demonstrate the stability and efficiency of the approach.
Author keywords: hypersingular integral,approximating operators; speed of convergence; Cauchy kernel.
Summary: Nearly every organization would like to adapt their environment to the cloud to increase productivity and decrease operational costs. By moving to the cloud, organizations are still struggling with enterprise mobile management systems. Managing devices can be challenging because of the complexity of the Microsoft ecosystem. However, Microsoft Intune is a service which was created to solve issues with managing devices and increase device security. This product can help to reduce potential security incidents within the organization and even during collaboration with other organizations.
The research employs a methodical approach where organizations utilize Microsoft Intune with its full capabilities and all available security configurations. This paper will examine Microsoft Intune's effectiveness in the matter of device management and security with different aspects.
Author keywords: Microsoft Intune; Mobile device management; Cloud security; Enterprise mobility and security
Publication date: 2024-12-14 09:57:00 Authors: INTIQAM BASHIROV; RUFAT MAMMADOV; ZAMIN BABASHOV Category:
Economy and Business
Summary: Leaders can make significant contributions to the functioning of the firm, regardless of their time and position. Leadership with effective strategies can provide a fundamental foundation for the effective use of the strategic management process. Leaders who follow strategies can accelerate the growth of relevant strategic activities and determine how to implement them. These activities serve as a gateway to higher average results and strategic competitiveness. Managers working in various organizations are fully aware of the need to create a strategic plan for the future of their organizations and participate in the effective adoption of these well-planned plans. In strategic management, the leader assumes various roles. He/she creates the conditions for change. Secondly, he/she selects key players from the organization and in the third stage, he/she creates a leadership team by shaping the vision and strategy through a visionary process that breaks down the existing hierarchy and clarifies the strategy that the entire organization can understand.
Taking into consideration above mentioned facts, the article focuses on theoretical background of the topic. Scientific literature has been used in order to shred light into the topic.
Publication date: 2024-12-14 09:46:00 Authors: Murat ALKIN; Dorukcan PEHLİVAN Category:
Economy and Business
Summary: Entrepreneurship is critically importance for individuals' economic and social development. The concepts of entrepreneurial resilience, entrepre-neurial intentions and entrepreneurial self-efficacy have become important research topics in the field of entrepreneurship and the number of studies carried out on these topics is increasing. Entrepreneurial resilience describes the resistance and adaptability of entrepreneurs in overcoming challenges, while entrepreneurial intentions represent individuals' attitudes and motivations towards entrepreneurial activities. Entrepreneurial self-efficacy is based on individuals' entrepreneurial abilities and their confidence in using these abilities.
The aim of this study is to comprehensively examine the bibliometric analysis of academic studies on entrepreneurial resilience, entrepreneurial intentions and entrepreneurial self-efficacy. This type of analysis is essential for understanding the current knowledge in the field of entrepreneurship, evaluating the effects on entrepreneurial processes and determining future research directions. For this purpose, data was obtained using the Web of Science database and analyzed using the R program using the bibliometric method. Within the scope of the findings, 2525 studies are examined in detail and it is aimed to provide important information for researchers who want to work in this field and to contribute to the literature.