Thrust Vector Control within a Geometric Sphere, and the Use of Euler's Tips to Create Jet Technology

This study aims to study the issues of choosing promising directions for the development of jet technology with the creation of energy-conserving technologies. The purpose of this article is to study the issues of choosing promising directions for the development of jet technology with the creation of energy-saving. Methodological approaches have been developed for solving inventive problems within the framework of training modern designers-inventors. A new patentable jet unit has been developed and presented, which makes it possible to control the thrust vector within a complete geometric sphere (when the thrust vector is capable of deviating to any angle ranging from +180° to -180°). For the first time, demonstration versions of a nozzle apparatus capable of realizing such flow reversals through annular channels are shown. The results of computer modeling of nozzle devices are focused on energy, production, and processing of hydrocarbons when distributing energy flows at process facilities. The individual results of the ongoing work can also be used in other industries, for instance, in the creation of small-sized high-speed unmanned vehicles for search and rescue operations. Proposals have been prepared to improve the methodology for solving inventive problems as part of the development of Leonard Euler’s ideas. Doi: 10.28991/CEJ-2023-09-10-011 Full Text: PD

Deformations of Existing Buildings, Caused by Construction Activities

Construction of a new building (NB) affects existing adjacent old buildings (OB) during pit excavation, piling, footing and NB erection. Two relevant history cases are described. In the first one, the graphs of OB settlements versus distance from the pit are given for the period of pit excavation and the total settlements for the period of NB erection. The second case gives the family of OB settlement time-related graphs versus distance from the pit, in which these settlements were caused by piling operations

Computational Fluid Dynamics (CFD) Simulation of Mesh Jet Devices for Promising Energy-Saving Technologies

This paper discusses the development of mesh jet devices for hybrid turbines, including developing Euler's ideas, and considers a new patented version of a mesh jet device designed to create guiding devices for turbines. The research methods are based on simulations using CFD and additive technologies. An intermediate conclusion is that a new scientific direction for the study and creation of mesh jet control systems has been formed as part of developing Euler's ideas. Calculation methods showed possible improvements in the performance of jet devices, including the use of curved tubes proposed by Euler to create turbines. This study shows that at the nozzle or mixing chamber outlet, the jet can deflect by an angle from +180° to -180° within the geometric sphere. This study also shows that the scientific groundwork prepared by Euler is not yet fully understood. The ongoing research mainly focuses on creating multi-mode jet devices designed for control systems for mesh turbomachines. Here, power consumption from an external source can be reduced to save energy. Some results of ongoing studies can also be applied in other industries (for example, when creating hybrid propulsion systems or propulsors). The scientific novelty of this work consists of improving the design methodology of jet machinery and turbomachines. Doi: 10.28991/CEJ-2022-08-12-06 Full Text: PD

Профессионально-прикладная физическая подготовка студента

Questions of professionally-aplied physical preparation of specialists of civil aviation. Standarts on the fitness of the MSTU CA students have been determined. Qualification characteristics of motor quality have been developed depending on the students’ speciality.Рассматриваются вопросы профессионально-прикладной физической подготовки будущих специалистов гражданской авиации. Определены контрольные нормативы по физической подготовленности студентов МГТУ ГА. Разработаны квалификационные характеристики двигательных качеств по специальности

ANALYSIS OF THE SCIENTIFIC AND TECHNICAL LEVEL OF THE TR EAEU 040/2016

В статье рассматривается необходимость проведения оценки научно технического уровня Технических регламентов Таможенного союза, на примере ТР ЕАЭС 040/2016 для поддержания актуальности их требований и соответствия научно- техническому развитию стран- членов ЕАЭС. Приведены критерии проведения оценки НТУ. По результатам даны предложения изменений в ТР ЕАЭС 040/2016.The article considers the need to assess the scientific and technical level of the Technical Regulations of the Customs Union, using the example of the TR EAEU 040/2016 to maintain the relevance of their requirements and compliance with the scientific and technical development of the EAEU member states. The criteria for the evaluation of NTU are given. Based on the results, proposals for amendments to the TR EAEU 040/2016 are given

Study of microbiome aberrations in patients with irritable bowel syndrome with diarrhea by next-generation sequencing

To investigate the microbiological composition of the intestines of patients with IBS-

A Ni(III) complex stabilized by silica nanoparticles as an efficient nanoheterogeneous catalyst for oxidative C-H fluoroalkylation

© The Royal Society of Chemistry 2016.We have developed NiIII-doped silica nanoparticles ([(bpy)xNiIII]@SiO2) as a recyclable, low-leaching, and efficient oxidative functionalization nanocatalyst for aromatic C-H bonds. The catalyst is obtained by doping the complex [(bpy)3NiII] on silica nanoparticles along with its subsequent electrooxidation to [(bpy)xNiIII] without an additional oxidant. The coupling reaction of arenes with perfluoroheptanoic acid occurs with 100% conversion of reactants in a single step at room temperature under nanoheterogeneous conditions. The catalyst content is only 1% with respect to the substrates under electrochemical regeneration conditions. The catalyst can be easily separated from the reaction mixture and reused a minimum of five times. The results emphasize immobilization on the silica support and the electrochemical regeneration of NiIII complexes as a facile route for developing an efficient nanocatalyst for oxidative functionalization