Vol. 2 No. 11 (2022)

At a time when the demand for heat-insulating materials is increasing every year, the production of composite materials with high efficiency based on local and industrial waste can be one of the solutions to this problem. One type of these materials is foam concrete. Use of energy-efficient construction materials, production of wall coverings and heat-insulating products from them. The article considers the issues of improving the main properties of foam concrete under the influence of additives that accelerate the hardening process of foam concrete produced based on local raw materials. The correlation of porosity with mechanical strength was studied. It has been shown that the strength varies significantly when different materials are compressed in a solid fractional volume.

In order to improve the equipment of harvesters, we need to have information about modern working bodies for harvesting cotton grown for the textile industry, since new technological equipment is now being imported into our country.

In the article, experiments were carried out on raw cotton varieties of the An 37 and Namangan 77 breeding to analyze the operating mode and technological processes of tower drying equipment in the technological process of drying raw cotton at the cotton ginning enterprise Bahodyr Logon LLC. LLC Textile. From the obtained results, the amount of moisture removal from the cotton content of the equipment, the time of splitting of cotton, the amount of consumption for evaporation of 1 kg of moisture from the equipment, and the results of the analysis are presented.

In the article, the method of calculation of the process of purification of waste gases generated in the production of superphosphate in a wet method in a rotor-filter experimental apparatus is given. Also, the results of the experiment on the absorption of hydrogen-fluoride gas contained in waste gas into the solution of technical soda in water are given, and the equation for calculating the mass transfer coefficient is recommended. Theoretical and experimental studies mainly selected the optimal values of variable factors.

Anna Seghers is one of the strongest, most active, most effective writers of German literature of the 20th century. Anna Seghers is the pen name of the writer, whose real name is Netty Reiling. Even if fascism reached its peak and threatened the whole world, the writer believed for a lifetime that the German people would be saved from this calamity, and he actively fought with all his might for the restoration of such a free-minded Germany. It is worth saying that Anna Seghers is a great thinker, both as a writer and as an active organizer.

The article is written about the fact that a lot of electricity is consumed in the process of grinding materials in cement production technology, and to ensure the efficiency of material grinding by studying the reasons where it is spent.

The article analyses the factors contributing to the crushing of building materials and the study of the reasons for their formation.

In this article, recommendations for ensuring the long-term operation of the belt conveyor belt.

The article investigates the drying process of the raw material component - loam, a technological line for the production of cement inLLC “Turon-ecocement group”, experimentally determined kinetic curves of drying, andchange in the temperature of the drying agent and the material being dried along the length of the drum at its various initial values.

This article talks about ways to solidify shifting sands for construction on lands with shifting sands. Also, the results of experiments on this topic are clearly expressed in tables. Currently, this problem is observed around the world and in how many regions of Uzbekistan.

This article discusses the manufacture of gears with two methods (copy method and run-in method). The largest number of gear wheels are made of carbon and alloy steels, and less often of cast iron, bronze and plastic. In the manufacture of gears, two fundamentally different methods are used. copy method and run method. Gears, especially high-precision gears, must have dimensional stability, therefore, in their manufacture, high requirements are placed on material homogeneity and balance of internal stresses.

In the work in the MATLAB program, an IGBT-transistor inverter was modeled to improve the energy efficiency of a mobile uninterruptible power supply. In order to improve the efficiency of the uninterruptible power supply, its principal and structural diagrams have been developed.

The article analyzes the effect of rotation speed on the parameters of movement of materials in a drying drum: the degree of material distribution over the transverse surface of the apparatus, the average time of its stay in the apparatus and the degree of loading. As a model material in the experiments, we used a mineral fertilizer produced in the superphosphate shop of the different kind of factory.

This article discusses the characteristics of cotton knitted fabrics, their parameters and optimal options in the production of women's outerwear.

In this article, the author analyzed the features of criminal responsibility for premeditated murder committed out of religious prejudice. The author notes that the intentional murder of the head of a religious organization should be recognized as murder in connection with the implementation of a person as specifically assigned by law to him duties, and the сommission of other socially useful actions of a religious nature. Based on the analysis of criminal legislation of the Republic of Uzbekistan and explanation of the resolution of Plenum of the Supreme court of the Republic of Uzbekistan, the author has developed relevant proposals of theoretical and practical nature, aimed at improving qualification of premeditated murder motivated by religious prejudice.

This article includes suggestions for filtering the dusty air coming out of the drying drum installed in cotton ginning plants. The purpose of this is to reduce the ecological and environmental damage of cotton ginning enterprises.

In this article, the most common programming languages are considered, as well as their comparative analysis and the study of the prospects of their use in the future.

The review article presents modern methods of treatment of ankylosing spondylitis, including the use of both non-drug and drug therapy. Of the medical methods of treatment, a critical review of the available modern drugs, including their shortcomings, is presented. The article also points out the lack of clear recommendations for the introduction and treatment of AS patients during the pandemic, taking into account the incidence of COVID-19.

The article describes the results of research on determining the technical parameters of the pre-sewing land leveling machine on case of the wide o working and working speed.