Gravity

We all know well that there are only four fundamental forces and interactions, namely: gravitation, electromagnetism, strong and weak nuclear interactions. These four forces together constitute the diversity of all known phenomena in Nature. The weakest of them is gravity. The weakest is the gravitational interaction, the strength of which at an energy of 10⁹ eV is 10³³ times (33 orders of magnitude) less than that of the weak interaction.

However, the most powerful objects in the Universe are created not by strong and weak nuclear interaction (it is clear, they are short-range), but also not by electromagnetism, which is 10 orders of magnitude more powerful than the weak interaction, but by the weakest force in Nature - gravity.

Hypothesis on the Existence of Life in Vacuum Conditions (humor)

In the universe, there may exist living organisms capable of surviving and reproducing in vacuum conditions. Sunlight represents one of the possible sources of energy that is available in significant quantities in space. Microelements and complex molecules necessary for life, such as carbon, hydrogen, oxygen, and nitrogen, can exist in outer space, even though they are scarce.

Fiber-optic hydraulic microphone based on an end-face Fabry-Perot interferometer with an open cavity

 

Authored by: Oleg Morozov; Timur Agliullin; Airat Sakhabutdinov; Artem Kuznetsov; Bulat Valeev; Mohammed Qaid; Roman Ponomarev; Danil Nurmuhametov; Anastasia Ivanovna Shmyrova; Yuri Konstantinov has been accepted in Photonics (ISSN 2304-6732) on 19 December 2023

Humanity will kill itself

The basic idea of this thesis is that humanity will destroy itself by developing medicine. Let us focus on the question “how and to what extent the development of medicine will affect the prospects of mankind”. We focus on the fact that the development of medicine contributes to the fact that it significantly reduces the role of negative selection, equalising the chances of reproductive success for all members of the population. Timely rendered medical services allow receiving equal reproductive success simultaneously and representatives with successful mutations and representatives of the population with negative mutations. On the scale of several hundreds or even thousands of years, the absence of the factor of negative selection will inevitably lead to the fact that each next generation will be weaker than the previous one.  The negative mutations will get an equal chance to be fixed in the population as positive ones.

My dauther and Karate

 This is, of course, my blog, which I mainly focus on my scientific achievements. At the same time, my children bring me a huge share of joy in my life. I would like to post here about my youngest daughter winning first place in a karate competition. Below are the semi-finals and finals.

Special Issue in International Journal of Mathematics and Systems Science

Dear Colleagues,

Detection of toxic or noxious substances in gases and liquids is becoming increasingly important in industrial production and environmental control tasks. At the same time, the demand for detection and control of individual biological and chemical substances is growing, which is especially noticeable in biomedicine and health care. Accurate concentration analysis can have many critical applications in biology, chemistry, ecology and other areas of science. Detection methods based on changes in refractive index have many advantages over many other analytical methods because they are very sensitive not only to sample concentration, but also to molecular interactions. In addition to this, optical methods for controlling the refractive index are very sensitive and have a great measuring potential even with a small volume of the material to be measured.

One of the most promising approaches is the use of fiber optic sensors as part of a system for monitoring the concentration of substances in liquid or gaseous media. Fiber-optic sensors compared to classical sensors have a number of significant advantages, such as small mass, high sensitivity, electromagnetic compatibility, the possibility of multiplexing, the ability to measure multiple quantities. A great advantage of fiber optic sensors is also their biological and chemical neutrality in a wide range.

Over the past decades, the topic of fiber-optic concentration sensors has been quite widely discussed, with various and very witty solutions being found in publications occasionally. Nevertheless, the interest in this topic is steadily growing, and it is caused both by the development of fiber optic sensor methods and by the development of technologies for the sensor production.

Thus, the actual task is not only to create the measuring systems and sensors, but also to develop mathematical models to investigate the physics of the phenomenon. It allows determining recommendations to the range of parameter selection, providing an appreciable range of change in the refractive index, which in turn depends on the dielectric and magnetic permeability. And the design recommendations should be derived from the results of the study of the mathematical model.

This section serves as a platform for the exchange of knowledge on new methods and technologies, practical implementations, current analysis, conclusions, and experiences in this field of research. It will advance research that promotes the development, integration, and possible improvement of fiber optic sensors? Including concentration sensors in various sectors of the economy. It is designed for designers, researchers, and practitioners to share their knowledge and experience in this field.

International Journal of Mathematics and Systems Science, Fiber Optic Concentration Sensors, Submission deadline: 2023-12-31

Section Editors

Proff. A.Zh. Sakhabutdinov

Dr. T.A. Agliullin

Neural networks in applications of fiber optic sensor networks.

We have used neural network technology for the first time to determine the position of the center wavelength of a fiber Bragg grating. Despite the fact that the technology, in general, is simple, it turned out to be surprisingly very effective and promising. It's especially nice that our article was accepted in Scopus Q2.