The purpose of the work was to conduct biotesting for the presence of antibiotics in several lakes of the Akmola region, located in the zone of possible ingress of antimicrobial drugs into them. The adopted research method was the modified disk diffusion method, employed to determine the microorganisms’ sensitivity to the used antibiotics. As a result of the study, sensitivity ...

Turbines are one of the most important means of producing clean energy, as they do not cause any negative emissions affecting the environment. Recently, the need to design turbines capable of facing strong winds has appeared because the currently designed turbines must be cut off in such circumstances. This study aims to find the best design parameters and investigate the ...

This paper considers the deformation process of a typical section of a steel trunk pipeline with a defective zone, strengthened with a carbon fiber composite lining, under the influence of stationary internal pressure. Defects in the form of thinning of the pipe thickness and cracks were investigated. The stressed-strained state of the structure at critical pressure was analyzed. ...

The Nura River basin is located on the territory of Central Kazakhstan and is a single territorial-production structure with a developed industry that plays an important role in the economy of the entire Kazakhstan. Effective industrial development should be based on the well-tailored farming industry. However, significant continentality of the target basin, along with ...

Solar energy, which is widely acknowledged for its economic feasibility and sustainable nature, functions as a critical substitute for finite fossil fuels, effectively alleviating ecological consequences. The purpose of this study is to investigate the implementation of solar collectors as a means of harnessing the ample and unaltered solar radiation in Iran, specifically in ...

The vector of development of the Russian economy, which is aimed at sustainable economic growth of business, was threatened by unforeseen circumstances - the new coronavirus pandemic, which turned out to be one of the most powerful global external challenges for all leading national economies and the global business community as a whole. To overcome and minimize the ...

One of the principles of the circular economy is to recycle used or unused materials, in order to reuse them in the creation of new objects or the restoration of old ones. But due to the fragility, some of these materials, such as old textiles and clothing, are quite difficult to handle. This study presents a completely digital method with the help of which two pieces of ...

The article discusses the issues of financial stability of enterprises in unstable economic conditions. The authors propose a formal model of the gradual quantitative assessment of the financial stability of enterprises based on the use of regression equations with determination coefficients. The financial stability of enterprises is described by the indicators of their ...

The article illustrates the possibility of producing products from foam concrete by using effective components and the intensification of solar heating by soft modes, which allows to obtain high-quality material and organize energy-efficient and environmentally friendly production. Solar technology in the production of foam concrete – a new method of heat treatment, ...

This paper presents the complex analysis of diverse field loading tests of ten large diameter deep bored piles on CFA technology at the Karachaganak Processing Complex (KPC), Aksay, Kazakhstan. On the basis of core sample analysis and seismic studies, the geological conditions of this field are varied and complicated. According to the project design, the field tests of CFA ...