scholarly journals Integrated efficiency evaluation of the heat- supplying enterprises activity

2020 ◽  
Vol 164 ◽  
pp. 01024
Author(s):  
Evgeny Еvseev ◽  
Tatiana Kisel

Heat supply is the industry which forms the comfortable living environment in many respects. It is especially felt in those regions, where climatic conditions demand maintenance of the comfortable thermal mode during the cold winter period. On the one hand, the efficiency of the heat- supplying enterprises activity determines the level of the population comfort, including temperature condition in rooms, uninterrupted heat supply, on the other hand, it influences the tariff level for heat supply services. The article presents the results of the research, which purpose was to reveal the indicators of the heat-supplying enterprises activity, allowing to estimate their efficiency in the most complete way from the position of various stakeholders. The system of indicators, created as a result of the conducted research, can be used by both management of the enterprise, and external stakeholders for the efficiency evaluation of the heat-supplying enterprise in statics and in dynamics.

1937 ◽  
Vol 33 (1) ◽  
pp. 84-86
Author(s):  
V. A. Petrovykh

The harsh climatic conditions of the coast of the Tatar Strait make explainable the large number of patients with frostbite who passed under our supervision during the winter of 1935-36 and amounted to 2.8% (26 people) of the total contingent of inpatients. The variety of recommended methods for treating frostbite, on the one hand, and the relatively long recovery period for all of them, on the other hand, made us take a critical approach to the proposed methods of treatment. All currently existing methods are reduced to the treatment of frostbite areas with bandages; and on the locus morbi apply indifferent or slightly disinfecting ointments, or a similar property of a powder, or wipes moistened with slightly disinfecting solutions, for example, Sol. kalii hyperm. 1: 1000. The apparent similarity of the external manifestations of frostbite and burns inspired us with the idea of ​​conducting frostbite therapy in an "open way", which has long occupied a well-deserved place in the treatment of burns.


2015 ◽  
Vol 33 (1) ◽  
pp. 143-157 ◽  
Author(s):  
K. S. Tanoh ◽  
B. J.-P. Adohi ◽  
I. S. Coulibaly ◽  
C. Amory-Mazaudier ◽  
A. T. Kobea ◽  
...  

Abstract. In this paper, we report on the night-time equatorial F-layer height behaviour at Korhogo (9.2° N, 5° W; 2.4° S dip lat), Ivory Coast, in the West African sector during the solar minimum period 1995–1997. The data were collected from quarter-hourly ionograms of an Ionospheric Prediction Service (IPS) 42-type vertical sounder. The main focus of this work was to study the seasonal changes in the F-layer height and to clarify the equinox transition process recently evidenced at Korhogo during 1995, the year of declining solar flux activity. The F-layer height was found to vary strongly with time, with up to three main phases. The night-to-night variability of these morphological phases was then analysed. The early post-sunset slow rise, commonly associated with rapid chemical recombination processes in the bottom part of the F layer, remained featureless and was observed regardless of the date. By contrast, the following event, either presented like the post-sunset height peak associated with the evening E × B drift, or was delayed to the midnight sector, thus involving another mechanism. The statistical analysis of the occurrence of these events throughout the solar minimum period 1995–1997 revealed two main F-layer height patterns, each characteristic of a specific season. The one with the post-sunset height peak was associated with the northern winter period, whereas the other, with the midnight height peak, characterized the northern summer period. The transition process from one pattern to the other took place during the equinox periods and was found to last only a few weeks. We discuss these results in the light of earlier works.


2014 ◽  
Vol 1040 ◽  
pp. 912-916 ◽  
Author(s):  
Igor B. Ardashkin ◽  
Alexey N. Yakovlev ◽  
Nikita Martyushev

A brief analysis of the approaches to the evaluation of foundry technologies’ resource efficiency is presented. It is revealed that when evaluating resource efficiency researchers apply different criteria which do not allow them, on the one hand, to more objectively estimate the parameters and, on the other hand, to relate and compare the advantages and disadvantages of each of the assessment techniques. Representatives of one of the approaches to resource efficiency evaluation focus on determining the technological side, while representatives of the other approach emphasize the priority of the technological and economic aspects. Taking the example of analysing the problems of the technology of casting by gasified models, it has been demonstrated that the evaluation of resource efficiency cannot be unambiguous. Constant monitoring of the process is required. The authors come to conclusion that it is the method of expert evaluation that allows being more flexible in the evaluation of the resource efficiency of foundry technologies. The result of the conducted methodological assessment is the developed formula for estimating the resource efficiency of foundry technologies.


2021 ◽  
Author(s):  
Liubovi Lebedenco ◽  

This paper presents research results on the assessment of the status of zooplankton communities under the conditions of changing aquatic environment of the Dniester and Prut Rivers. The current climatic conditions have contributed to the change of the hydrological regime of the investigated ecosystems. The influence on zooplankton was manifested on the one hand by restructuring the species composition and disturbances in quantitative parameters, and on the other hand by increasing the density of zooplankton communities during the study year.


2021 ◽  
Vol 16 (4) ◽  
pp. 547-555
Author(s):  
Surayyo Sh. Abdurasulova ◽  
◽  
Аbduvaeit P. Pazilov ◽  

The variability of Candaharia levanderi (Simroth, 1902)(Gastropoda, Stylommatophora, Parmacellidae) in two biotopes (southern and northern slopes, the Kampirtepa gorges, the Kugitang Tau ridge) has been investigated using polymerase chain reaction (PCR) with the implementation of primers, the 18S DNA of the region is amplified, the variability (sharply differing in color) of two populations of C. levanderi is studied. The first population is in the suburbs of Namangan, (Namangan Region); the second population is in Kampirtepa gorges, Kugitang Tau ridge (Surkhandarya Region). It is established that, most often, the variability of morphological signs is observed on the coloration of mollusks. The development of body coloration is an adaptive feature that reflects the adaptability to certain biotopes on the one hand, and landscape and climatic conditions on the other.


2020 ◽  
Vol 19 (7) ◽  
pp. 229-244
Author(s):  
Andrew P. Borodovsky

Purpose. The article discusses the option of possible reconstruction of the residential facility porch in the central part of the Umrevinsky Ostrog (built in 1703). The archaeological studies of this object revealed that this structure had existed prior to the 1760s. It had been assumed earlier that this wooden structure functioned as either a government or judicial office. Such an administrative building was constructed on top of a tall basement. On the one hand, it had traces of a pile-supported, columnar-lined structure based on the several holes for wooden supports. Such holes for piles were located in a rectangular shape next to one of the side ends of the main log-house on top of the basement. On the other hand, one of the pile holes was located far beyond this structure. Results. It can be assumed that the pile hole beyond the structure points to a past support pile of a tall porch of the wooden building on top of the basement. The as-built reconstruction of the porch of such type allowed obtaining additional arguments to support a hypothesis regarding the administrative purpose of the residential facility located in the centre of Umrevinsky Ostrog. Conclusion. Taking into account the government office orientation in relation to the wind diagram, the proposed option of the pile-supported porch structure along with the columnar-lined basement of the “seni” (mud room) has the most favourable aerodynamics ensuring minimal snow accumulation. These characteristics are extremely fitting given the Siberian climatic conditions.


2021 ◽  
Vol 258 ◽  
pp. 11001
Author(s):  
Natalya Gagulina ◽  
Andrei Zaedinov

The paper is devoted to the study and search for solutions to one of the most important problems within the modern Russian economy – the problem of energy saving. The relevance of this topic is due to the unprofitability of the heat supply industry, the one main reasons of which is the unsatisfactory condition of fixed assets. The paper considers the most important element of heat supply: the transfer of heat energy to consumers through the heat network. It has been presented an overview and analysis of the state of heating networks in 2014-2019 on average in Russia and particularly: in Moscow, St. Petersburg, and the Northwestern Federal District. The value of economic losses incurred by heat supply organizations due to heat losses in their heating networks is obtained. In monetary terms, the energy-saving potential was obtained while reducing heat losses in the pipelines up to 4%. For the whole country, this potential amounted to more than 100 billion rubles a year. As the analysis of the experience of foreign countries with similar climatic conditions, such as Denmark, Norway, and Finland, has shown, Russia can significantly increase the efficiency of heat supply through the use of innovative technologies.


1890 ◽  
Vol 47 (286-291) ◽  
pp. 213-216

Pointing out the intimate relations between the study of plant physiology and pathology, the lecturer briefly referred to the existing modes of classifying the diseases of plants, and the difficulties they involve. Broadly speaking, there are diseases due to soil, climate, and the influence of the non-living environment on the one hand; and those due to the attacks of living organisms (parasitic fungi, insects, &c.) on the other. Some interesting cases were briefly discussed, and the fact brought out that several causal factors co-operate in producing any disease.


1975 ◽  
Vol 26 ◽  
pp. 395-407
Author(s):  
S. Henriksen

The first question to be answered, in seeking coordinate systems for geodynamics, is: what is geodynamics? The answer is, of course, that geodynamics is that part of geophysics which is concerned with movements of the Earth, as opposed to geostatics which is the physics of the stationary Earth. But as far as we know, there is no stationary Earth – epur sic monere. So geodynamics is actually coextensive with geophysics, and coordinate systems suitable for the one should be suitable for the other. At the present time, there are not many coordinate systems, if any, that can be identified with a static Earth. Certainly the only coordinate of aeronomic (atmospheric) interest is the height, and this is usually either as geodynamic height or as pressure. In oceanology, the most important coordinate is depth, and this, like heights in the atmosphere, is expressed as metric depth from mean sea level, as geodynamic depth, or as pressure. Only for the earth do we find “static” systems in use, ana even here there is real question as to whether the systems are dynamic or static. So it would seem that our answer to the question, of what kind, of coordinate systems are we seeking, must be that we are looking for the same systems as are used in geophysics, and these systems are dynamic in nature already – that is, their definition involvestime.


Author(s):  
Stefan Krause ◽  
Markus Appel

Abstract. Two experiments examined the influence of stories on recipients’ self-perceptions. Extending prior theory and research, our focus was on assimilation effects (i.e., changes in self-perception in line with a protagonist’s traits) as well as on contrast effects (i.e., changes in self-perception in contrast to a protagonist’s traits). In Experiment 1 ( N = 113), implicit and explicit conscientiousness were assessed after participants read a story about either a diligent or a negligent student. Moderation analyses showed that highly transported participants and participants with lower counterarguing scores assimilate the depicted traits of a story protagonist, as indicated by explicit, self-reported conscientiousness ratings. Participants, who were more critical toward a story (i.e., higher counterarguing) and with a lower degree of transportation, showed contrast effects. In Experiment 2 ( N = 103), we manipulated transportation and counterarguing, but we could not identify an effect on participants’ self-ascribed level of conscientiousness. A mini meta-analysis across both experiments revealed significant positive overall associations between transportation and counterarguing on the one hand and story-consistent self-reported conscientiousness on the other hand.


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