Today's digitally driven critical infrastructure relies heavily on operational technology (OT), and this study tackles the urgent need to protect these systems. Threats to critical infrastructure might be exacerbated by the merging of operational and information technologies. This study uses a literature review approach to argue for strict security precautions by analyzing the current and future state of cyber threats, OT vulnerabilities, and actual cyber occurrences. A search was carried out on peer-reviewed articles, English language articles published between 2016 and 2023 reporting on critical infrastructure, cyber threats, OT vulnerabilities, and actual cyber occurrences. The search used vocabulary terms such as digitalization era, critical infrastructure, operational technology and information technology. Reference lists of articles were reviewed to identify additional studies. A total of 10 articles and case studies were included in this review. It was found that effective protection of Critical Infrastructure depends on teamwork; important factors in the development of the critical infrastructure cybersecurity environment include regulatory frameworks and compliance requirements; public-private partnerships (PPPs) create a synergy that improves the safety of critical infrastructure.

According to the trend of preschool education in recent years, teachers' morality and style still need to be improved. To understand the importance of moral education, everything from reality, lead by example, standing in the perspective of young children to look at the problem, must not be mechanically applied, with strong teaching methods to help children master knowledge, to fully love this career, has a strong dedication. Carry out standardized and rational education work, improve personal moral literacy and professional knowledge literacy, and lay a more solid guarantee for serving children

A computer program has been developed for the design of subsurface drip irrigation system. It could be applied for calculation of small scale fields with an area up to 50 ha. The program includes two main parts: crop water requirements and hydraulic calculations of the system. It has been developed in Graphical User Interface (GUI) in MATLAB and gives opportunity for selecting some parameters from interactive tables such as: agro-physical soil properties, characteristics of the corresponding crop, climatic data. It allows the user of the program to assume and set up a definite value, for example the emitter discharge, plot parameters and etc.  Eight cases of system layout according to the water source layout and the number of plots of the system operation are laid into hydraulic section of the program. It includes the design of lateral, manifold, main line and pump calculations.