The Use of Laser Sensing for Solving Meteorological Problems Related to Researching and Ensuring the Safety of Space Flights.

This paper is devoted to the issue of using laser (lidar) sensing to determine wind speed and direction when solving practical problems during the analysis of meteorological conditions in the area around spaceports. This issue is relevant both for making decisions on the possibility of a safe launch of a launch vehicle and for conducting search and rescue operations using groups of manned and unmanned aerial vehicles. Based on numerical and experimental modeling, it is shown that lidars provide highly accurate measurements of wind speed profiles and allow for the determination of weak wind shear in vertical and horizontal directions.

Physical properties and thermodynamic characteristics of hydrogen.

This paper discusses the use of hydrogen in various industries and energy sectors. It focuses on studying the properties and characteristics of hydrogen, which serves as a key factor in determining its potential in various applications. Such aspects of hydrogen application as environmental friendliness as well as utilization efficiency and safety are considered.

Advances in Digital Holographic Interferometry.

Holographic interferometry is a well-established field of science and optical engineering. It has a half-century history of successful implementation as the solution to numerous technical tasks and problems. However, fast progress in digital and computer holography has promoted it to a new level of possibilities and has opened brand new fields of its application.