Статьи

The concept of essence develops as a prominent creative trend through the theme of emptiness seen in minimalism in architecture. To highlight a few experiences of the emptiness created by the function of space, this topic is examined in the juxtaposition of two cultures: Western as temporal and Eastern as spatial. This article focuses on the metaphorical connotations of space, on Lotman’s semiosphere, which is a space with the included area serving as a symbol of the included space. Lotman describes the semiosphere, based on dualisms, levels, and spatial oppo-sites that represent the Tartu semiotician’s thesis. This case study examines the research’s initial hypothesis of emptiness being a metaphor that appears in the semantics of connotation – in the connection between Eastern and Western culture ‒ and provides a spatial model for cultural interpretation.

An analytical method of solving the wave equation describing the oscillations of systems with moving boundaries is considered. By changing the variables that stop the boundaries and leave the equation invariant, the original boundary value problem is reduced to a system of functional-difference equations, which can be solved using direct and inverse methods. An inverse method is described that makes it possible to approximate quite diverse laws of boundary motion by laws obtained from solving the inverse problem. New particular solutions are obtained for a fairly wide range of laws of boundary motion. A direct asymptotic method for the approximate solution of a functional equation is considered. An estimate of the errors of the approximate method was made depending on the speed of the boundary movement.

A description of the Crangonidae shrimp collection is presented. It was collected by Dr. K. Sakai from catches of fishing vessels operating on the shelf and the upper part of the continental slope of Tosa Bay (Shikoku Island, Japan) in 1961-1962, 1979 and mainly in 1963. Then this collection was transferred for storage to the Crustacean Section of the Zenkenberg Research Institute (Frankfurt am Main, Germany). During processing this collection of shrimps, they were measured with an accuracy of 1 mm from the end of the rostrum to the end of the telson (total length - TL) and (or) from the end of the rostrum to the middle of the dorsal part of the posterior edge of the carapace (length of the carapace - CL). The collection included 64 specimens of crangonid shrimp, including: 5 females Aegeon lacazei (Gourret, 1887); 1 female, 2 males and 4 damaged specimens Neocrangon sagamiensis (Balss, 1913); 1 female, 2 males and 4 damaged specimens Crangon dalli Rathbun, 1902; 4 females and 7 males Parapontocaris aspera Chace, 1984; 1 female Parapontocaris laevigata Chace, 1984; 12 females of Metacrangon longirostris (Yokoya, 1933); 19 females and 2 males of Pontocaris pennata Bate, 1888. For the first time, three species of crangonids (N. sagamiensis, P. aspera, P. laevigata) were discovered in the Tosa Bay. In the description of each species, in addition to length measurement data and sex determination, if necessary, the justification of the taxonomic status of the species is given, as well as information about the presence or absence of eggs on the pleopods of females.

This research paper introduces an advanced optical transmission technology for 5G+ networks that uses high-order quadrature amplitude modulation (QAM) to improve data delivery.

The system uses coherent optical transmission, dual-polarization, advanced DSP algorithms, and FEC to achieve great spectral efficiency, signal integrity, and resistance against optical defects at 16Tbit/s per channel across 200 kilometers. This study shows that high-order QAM can address future connectivity needs and advances optical network development for 5G and beyond. Based on the system developed by the author with a speed of 1 Tbit/s and the application of the Il’in-Morozov’s method, the presented system can be modernized and simplified in its structure, brought to the speeds indicated above due to stream aggregation.

Relations between the object and the subject, the objective reality in quantum mechanics and the theory of systems are investigated. Only as a result of observation does a quantum object become either a particle or a wave. Without the role of an observer, an object can simultaneously be in many states, while not being in any of them. In essence, wave-particle duality directly contradicts the notion of the existence of «objective reality» independent of the observer. Quantum mechanics postulates the inseparability of the subject, object and their interaction, and the theory of systems determines their relationship. Material reality, neither objective nor subjective, exists. Quantum objects materialize their states depending on the conditions of observation and at the request of the observer. Objective, independent of us, the world does not exist. To one degree or another, we influence all the objects of this world, and the world affects us. Each of the interacting elements of the system contributes to the formation of the reality of the element of the system and the entire system as a whole. The more elements interact with a large number of system elements, the more «real» it is. This conclusion, however paradoxical, not only does not contradict, but also follows both from the laws of quantum mechanics and from the laws of systemology.