In this article, we tried to examine the energy of an object under different physical conditions. We demonstrated that the outcome is different from what physicists has so far believed. Basically, we showed that the net energy of an object in this universe is fixed and is not affected by the environment.

Keywords: Universe, Energy, Cosmology.

The purpose of this report was to compare the numerical analysis for different cooling efficiency of a cable tunnel system when installing one additional cable trough or three cable troughs for cable circuit 100% or 70% heat load. Cable tunnel system is widely known for it is use for high voltage transmission in an underground. Due to the cables generating large quantities of heat, water pipes and air ventilation were used in the tunnel to cool down the transmission cable. To investigate the cooling efficiency of a tunnel, research for benchmark case was carried out. A Computational Fluid Dynamic (CFD) benchmark analysis about 2D natural convection inside the square cavity was investigated to further understand the air movement inside the square medium....

Keywords: Cable tunnel system, natural convection, and Computational Fluid Dynamic.

This paper explores the empowerment of digital economy on urban-rural integration development in Wenzhou, which has important practical significance and theoretical value. The digital economy, characterized by virtuality, high innovation, and strong permeability, shows trends of intelligence, platformization, and cross-border integration. It can empower urban-rural integration through the flow and sharing of data elements. Wenzhou has achieved certain results in urban-rural integration but also has shortcomings. The digital economy in Wenzhou is developing well, with a characteristic industrial layout constructed, remarkable achievements in infrastructure construction, and an continuously improved innovation ecosystem, along with typical cases........

Keywords: Digital Economy, Urban-Rural Integration, Wenzhou, Development Path, Innovation Ecosystem.

Power supplies are one of the most essential equipment in labs and in daily life. The most basic type of power supply, the linear power supply, can be bulky, heavy and have low efficiency. In order to improve on all these drawbacks, a hybrid system that incorporates another type of power supply can be investigated. A switching power supply has high efficiency and low size, but has large amounts of ripple. The hybrid system would have the performance that is much better than a switching power supply, but have higher efficiency and smaller size compared to the linear power supply. To create this hybrid power supply, various schemes and layouts of a switching and linear power supply was researched........

Keywords: IoT solution, HVAC, air-conditioning system, machine learning, climate change.

Palliative care aims to improve the life quality of patients and their families facing problems arising from a life-threatening illness. Despite the development of palliative care resources, recommendations are still late and their use is still inadequate. The aim was to investigate the reality of a cancer hospital with regard to transfer and the provision of palliative care. Recommendation for palliative care occurred in 47.3% of patients.The median time between cancer diagnosis and death was 18 months.Sixty-two days passed between the last antineoplastic treatment and the date of death and between the access and the recommendation........

Keywords: palliative care;recommendation; life quality.

The paper ''Implementation of ISO 27001:2022 in the City of Cazin: Awareness, Challenges, and Opportunities'' analyzes the level of awareness, implementation, and benefits of applying the international standard ISO 27001:2022, which is crucial for all institutions whose business functions are in any way related to information technology and the need to protect the confidentiality of information resources. Considering the enhanced digitalization of business operations, the establishment and development of information security systems in all segments of a country represent an important prerequisite for creating an information society........

Keywords: system, security, standard, ISO 27001:2022.

The goal of this study is to determine the flow pattern and behavior of a steady two-dimensional, double diffusive MHD flow of Williamson nanofluidpast a permeable horizontally placed stretching cylinder in a porous medium. The modelled partial differential equations are converted into coupled, non linear ordinary differential equations through similarity variable transformations. The Homotopy Perturbation Method (HPM) is used to solve analytically the resulting system of linked, nonlinear ordinary differential equations.HPM is a methodical approach that ignores the linearization and discretization processes to produce precise analytical solutions of nonlinear equations.........

Keywords: Double Diffusive, Homotopy Perturbation Method, magnetohydrodynamics, Nanofluid, Stretching cylinder, Williamson.

The accelerated digitalization of business processes is transforming work organization and time management. The development of time-tracking technology, such as RFID and biometric systems, introduces significant changes in business process management and brings challenges concerning employee data protection compliance with legal regulations. This paper examines the challenges associated with the use of these technologies and analyzes the extent of users understanding of them. Additionally, it emphasizes the importance of aligning time-tracking systems with legal regulations, such as GDPR and the ISO 27001:2022 standard. .

Keywords: digitalization, ISO 27001:2022, GDPR, data

This study explores the design of a mobile-based assistive technology framework to enhance the learning mechanisms for students with special educational needs and disabilities (SEND) in North-East Nigeria. Using a descriptive qualitative approach, the research investigates general awareness, availability, and challenges associated with integrating assistive technologies in SEND settings. Data were collected through structured interviews, questionnaires, and a review of relevant literature. Key findings highlight that while assistive technologies significantly enhance learning outcomes, challenges such as inadequate resources, limited teacher training, and high costs hinder effective implementation........

Keywords: Assistive Technology, Special Educational Needs, Disabilities, Mobile Learning, Inclusion, ADHD, Nigeria.

Smartphones and small battery-powered devices are extremely essential in the present day, which have improved people's communication, entertainment and various daily tasks. However, with the widespread usage of these devices, a significant consumption of electricity can be noticed. Additionally, traditional charging methods rely on non-renewable energy sources, which can lead to a negative impact on the environment such as resource depletion, greenhouse gas emission and various pollution. But it is unavoidable that the demand for these devices will continue to grow due to the increase of population and advancements in technology. Therefore, a critical need for sustainable charging solutions should be developed. This report presents the design and simulation of a solar-powered wireless charger. The key parts include boost converter, colpitts oscillator, operational amplifier, Class-AB amplifier, full wave rectifier, buck converter and MCU. In addition, LTSpice simulation was used to effectively model and connect these parts. MPLAB is also used in write, rewrite and debug coding in MCU through PICKIT 3.

Keywords: Solar Energy, Wireless Charger, Circuit Monitoring, Wearable and Portable Applications.