An assessment of prevented ecological deprivation during the implementation of innovative technologies in the systems of housing and utility infrastructure

Under contemporary socio-economic conditions, requirements for housing and utility infrastructure are increasingly stringent. In this context, the selection of energy sources for heating supply systems tends towards options combining maximum efficiency with environmental friendliness. In this context, the substitu-tion of traditional heating fuels (natural gas and oil) with firewood has the potential to contribute to the future fuel and energy balance in the Russian regions. The application of wood fuel in the energy sector provides for the utilisation of wood and plant waste while reducing pollutant emissions into the atmosphere. For an objective assessment of increasing the degree of environmental safety, a complex index reflects the level of reduced environmental impact, in particular, on atmospheric air. In the present work, a calculation of reduced environmental impact under the conditions of transferring the heating supply system of the Listvyanka village to wood fuel (pellets)is presented. The calculation results demonstrate the total prevented environmental and economic impact to amount to 3 147 550 roubles (in 2020 prices.

Generic Network Location Service

This work presents the Generic Network Location Service based on the Chord implementation utilizing data structures called distributed hash tables (DHT) or structured overlay networks, which are used to build scalable self-managing distributed systems. The provided algorithms guarantee resilience in the presence of dynamism: they guarantee consistent lookup results in the presence of nodes failing and leaving. Generic Network Location Service provides a Location Service system based on DHT technology, which is storing device location records in nodes within a Chord DHT. Location records are consisting of network device identification keys as attributes, which are used to create replicas of additional location records through established Chord hashing mechanisms. Storing device location records, in places address-able (using the DHT lookup) by individual location record keys provides a simple way of implementing transla¬tion functions similar to well¬ known network services (e.g. ARP, DNS, ENUM). The generic network location ser¬vice presented in the paper is not supposed to be a substitu¬tion of the existing translation techniques (e.g. ARP, DNS, ENUM), but it is considered as an overlay service that uses data available in existing systems and provides some translations currently unavailable.

Substitution Methods for the Verification of Analog Solutions

Substitution of analog computer solutions into the original differential equations followed by an iter ative or a variational procedure can be employed as a practical verification technique and as a method for improving solution accuracy. The method has the advantage of utilizing information contained in the analog solution and, therefore, yields results more rapidly than the conventional procedure of deriving an independent numerical check solution. It is also valuable as an aid in locating the source of computer errors. Theoretical and practical aspects of the substitu tion check method are discussed and illustrative examples are presented in this article.