Vol. 6 No. 02 (2024): Volume 06 Issue 02

This paper provides a comprehensive review of the state-of-the-art techniques for enhancing the seismic performance of beam-column joints through retrofitting, focusing particularly on the use of Glass Fiber Reinforced Polymer (GFRP) and Near-Surface Mounted (NSM) technique. Beam-column joints are critical components in reinforced concrete structures, prone to damage and failure during seismic events. Retrofitting strategies using GFRP and NSM techniques have gained significant attention due to their effectiveness in improving the seismic resistance of existing structures. This review explores the key principles, design considerations, and performance enhancements achieved through GFRP and NSM retrofitting methods. Additionally, it discusses recent advancements, challenges, and future directions in the field of retrofitting beam-column joints for seismic resilience.

This study investigates the heat transfer efficiency of spiral pipe and round pipe configurations within boiler gas turbine systems. Heat transfer efficiency is a critical factor in the performance and energy efficiency of industrial systems, particularly in power generation applications. Using computational modeling and simulation techniques, we assess the thermal performance of spiral pipe and round pipe designs under various operating conditions typical of boiler gas turbine systems. Our analysis focuses on heat transfer rates, pressure drops, and overall system efficiency. The findings provide insights into the comparative advantages and limitations of spiral pipe and round pipe configurations in enhancing heat transfer efficiency within boiler gas turbine systems.

Specifically, greenhouse gases (CH4, N2O, CO2, CO, SO2), are strong climate forcers, and articulate pollution all have detrimental health effects. Vehicle on-road traffic is a major contributor to air pollutants in urban areas that affect human population health, the environment at local and regional scales, and the global climate.[1] This study forces a numerical study of engine oil by engine conditions by using different type of fuels. Engine oil main parameters and internal combustion engines were investigated under real-world conditions for driving cycles typical for Tashkent urban environments. Three kinds of laboratory equipment and ISO standards were utilized. Our study shows that by using different types of fuel, the life cycle point of motor oil varies. Total base number (TBN), Total acid number (TAN), viscosity and flash points were taken as basic parameters of engine oil. The viscosity value of oil dominated the other characteristics. In general, in our study to improve engine performance, we must consider engine oil, which is one of the key parameters.

In the modern world, the digital economy is becoming an increasingly important component of our lives. This is due to the fact that many companies and organizations actively use digital technologies to improve their business processes and increase competitiveness. One of the key aspects of the digital economy is logistics, which ensures the movement of goods and services from the producer to the consumer. Development of partnerships: cooperation with other companies and service providers allows you to expand opportunities for optimizing logistics processes and reducing costs. Using data analytics: Data analysis and the use of machine learning methods allows you to identify trends and optimize processes based on real indicators.