scholarly journals Impact of thermal renovation on selected characteristics of partition walls and the consumption of heat energy

2021 ◽  
pp. 1-9
Author(s):  
Krzysztof Cieśliński ◽  
Urszula Malaga-Toboła
Keyword(s):  
Cross Section ◽  
Heat Energy ◽  
Operating Costs ◽  
Partition Wall ◽  
Central Heating ◽  
Partition Walls ◽  
Large Panel ◽  
Housing Cooperative ◽  
The Subject ◽  
The Impact

Renovation of multi-family residentials, including mainly thermal renovation, which includes adding thermal insulation, contributes to the improvement of living conditions. Above all, it reduces the operating costs of renovated buildings by reducing the consumption of heat energy for central heating. This article discusses the impact of light wet thermal renovation on the temperature distribution in the vertical cross-section of the partition wall and the calculation value of the temperature on the inner surface of the partition wall, as well as on the reduction of thermal energy consumption in buildings. The subject of the research was residentials erected in the large-panel, large-block, and traditional technology between 1984 and 1994, managed by Łomża Housing Cooperative (ŁSM).

scholarly journals Strategies of Forestry Carbon Sink under Forest Insurance and Subsidies

2019 ◽  
Vol 11 (17) ◽  
pp. 4607
Author(s):  
Ye Song ◽  
Hongjun Peng
Keyword(s):  
Stackelberg Game ◽  
Carbon Sink ◽  
Optimal Strategies ◽  
Operating Costs ◽  
Insurance Company ◽  
The Subject ◽  
Insurance Mechanism ◽  
Insurance Supply ◽  
The Impact ◽  
Forest Insurance

We take the forest insurance supply chain, composed of a forestry enterprise and an insurance company, as the research object. The forestry carbon sink, operated by the forestry enterprise, is the subject matter of insurance. The Stackelberg game model is constructed to study the optimal strategies of the forestry enterprise and insurance company under the forest insurance mechanism, as well as the impact of government subsidies, probability of deforestation, and carbon limit level on the decision-making and profit of the forestry enterprise and insurance company. The results show that the larger the carbon limit, the looser carbon restraint policy, which causes the forestry enterprise to reduce the scale of carbon sink forest, and the insurance company lowers the premium level. As the probability of deforestation increases, both the scale of the carbon sink forest and the premium level will decrease. Direct subsidies for the premiums of the forestry enterprise are conducive to expanding the scale of carbon sink forest, but will lead to the insurance company improving the premium level. Providing indirect subsidies to the insurance company’s operating costs will not only expand the scale of the carbon sink forest, but also lower the premium level. In the case of the same number of premium subsidies, indirect subsidies are more effective than direct subsidies in increasing the forestry enterprise’s income and promoting it to expand the forest scale.

The impact of reinforcing profiles on the fire resistance of aluminium glazed partitions Part 1.

BUILDER ◽  
2020 ◽  
Vol 280 (11) ◽  
pp. 25-27
Author(s):  
Bartłomiej Sędłak ◽  
Paweł Sulik
Keyword(s):  
Fire Resistance ◽  
Main Task ◽  
Safety Requirements ◽  
Construction Market ◽  
Partition Walls ◽  
Glass Fibre Reinforced ◽  
Global Construction ◽  
The Subject ◽  
The Impact ◽  
Degree Of Filling

The inner walls of a building, which do not constitute its structure and therefore do not have loadbearing properties, are called partition walls. The main task of this type of element is the separation of rooms in a building, which is why they should be designed and constructed in a way that ensures, among others, compliance with fire safety requirements, including those related to fire resistance. There are many types of fire-resistant partition walls both on the European and global construction market, among which the most impressive effect is achieved by those using glass elements in their structure. These include aluminium glazed partitions, which are the subject of this paper. These structures are usually made of special fire-resistant glass positioned in three chamber profiles, made of two aluminium sections, connected by a thermal break, usually made of glass fibre reinforced polyamide. The chambers created in this way are filled with special insulating inserts, and the degree of filling depends on the expected fire resistance class, which is determined by an appropriate test. Large wall-height profiles of this type are usually further reinforced by screwing to them additional, special aluminium profiles. In this paper, the impact of using this type of additional profiles on the fire resistance of a glazed wall was analysed. The results of two walls with identical external dimensions and the same static scheme, made on the basis of the same glazing, from the same aluminium profiles have been compared, with additional reinforcing profiles applied in one of the tests. This article discusses the results obtained and the conclusions from the tests conducted.

The impact of reinforcing profiles on the fire resistance of aluminium glazed partitions Part 2.

BUILDER ◽  
2020 ◽  
Vol 281 (12) ◽  
pp. 13-17
Author(s):  
Bartłomiej Sędłak ◽  
Paweł Sulik
Keyword(s):  
Fire Resistance ◽  
Main Task ◽  
Safety Requirements ◽  
Construction Market ◽  
Partition Walls ◽  
Glass Fibre Reinforced ◽  
Global Construction ◽  
The Subject ◽  
The Impact ◽  
Degree Of Filling

The inner walls of a building, which do not constitute its structure and therefore do not have loadbearing properties, are called partition walls. The main task of this type of element is the separation of rooms in a building, which is why they should be designed and constructed in a way that ensures, among others, compliance with fire safety requirements, including those related to fire resistance. There are many types of fire-resistant partition walls both on the European and global construction market, among which the most impressive effect is achieved by those using glass elements in their structure. These include aluminium glazed partitions, which are the subject of this paper. These structures are usually made of special fire-resistant glass positioned in three chamber profiles, made of two aluminium sections, connected by a thermal break, usually made of glass fibre reinforced polyamide. The chambers created in this way are filled with special insulating inserts, and the degree of filling depends on the expected fire resistance class, which is determined by an appropriate test. Large wall-height profiles of this type are usually further reinforced by screwing to them additional, special aluminium profiles. In this paper, the impact of using this type of additional profiles on the fire resistance of a glazed wall was analysed. The results of two walls with identical external dimensions and the same static scheme, made on the basis of the same glazing, from the same aluminium profiles have been compared, with additional reinforcing profiles applied in one of the tests. This article discusses the results obtained and the conclusions from the tests conducted.

Contractional inheritance and rheology controls in a FTB: the Argentinian Precordillera, Central Andes (30°S)

2020 ◽  
Author(s):  
Matthieu Branellec ◽  
Nuria Carrera ◽  
Josep Anton Munoz ◽  
Jean-Claude Ringenbach ◽  
Jean-Paul Callot
Keyword(s):  
Cross Section ◽  
Central Andes ◽  
Thrust Belt ◽  
Sierras Pampeanas ◽  
Current Structure ◽  
Precambrian Rocks ◽  
Structural Style ◽  
The Subject ◽  
The Impact ◽  
Belt System

<p>The Central Andes (12°S-36°S) stretches over more than 2400km. They are characterized by strong longitudinal and latitudinal segmentation (Sierra Pampeanas, Precordillera, Cordillera Frontal, Cordillera Principal from east to west), each domain having distinctive basement involvement and showing different structural styles. The Argentinian Precordillera, located at 30°S, has long been interpreted as a thin-skinned wedge detached below into the lower part of Paleozoic succession. It makes up a typical Coulomb foreland thrust belt system. However, the impact of the Paleozoic inheritance derived from the various orogenic stages on the current structural style has been overlooked. The Chanic structures that developed in Silurian / Devonian times have been reactivated by the Andean deformation that took place from Oligocene to Plio-Pleistocene times. The current structure of the Precordillera has been the subject of numerous studies in the last decades. Thanks to compilation of this literature and fieldwork, we present a new cross-section considering these 2 superimposed events. This cross-section can be divided into 2 different zones depending on the dominant structures. The western Precordillera involves an Ordovician succession characterized by Chanic superimposed folding phases with cleavage development. On the contrary, in the eastern part, most of the observed structures were developed during Andean orogeny. The structural style is characterized by thrusts faults and penetrative deformation is absent. The Sierras Pampeanas in the East are a Miocene thick-skinned system that makes up a typical broken foreland system. The association of both systems of Precordillera and Sierras Pampeanas delineate an inheritance-controlled original orogenic thin-skinned system that turns to the east into a broad thick-skinned system involving up to Precambrian rocks.</p>

Analytical and High-Resolution EM Study of Crystalline Phases formed at Metal-Ceramic Interface

1990 ◽  
Vol 48 (2) ◽  
pp. 426-427
Author(s):  
N. Merk ◽  
A. P. Tomsia ◽  
G. Thomas
Keyword(s):  
Cross Section ◽  
Dissimilar Materials ◽  
Ceramic Materials ◽  
Electron Micrograph ◽  
Scanning Electron Micrograph ◽  
Structural Applications ◽  
Metal Ceramic ◽  
The Subject ◽  
Ceramic Compounds ◽  
Scanning Electron

A recent development of new ceramic materials for structural applications involves the joining of ceramic compounds to metals. Due to the wetting problem, an interlayer material (brazing alloy) is generally used to achieve the bonding. The nature of the interfaces between such dissimilar materials is the subject of intensive studies and is of utmost importance to obtain a controlled microstructure at the discontinuities to satisfy the demanding properties for engineering applications . The brazing alloy is generally ductile and hence, does not readily fracture. It must also wett the ceramic with similar thermal expansion coefficient to avoid large stresses at joints. In the present work we study mullite-molybdenum composites using a brazing alloy for the weldment.A scanning electron micrograph from the cross section of the joining sequence studied here is presented in Fig. 1.

Managing Service Quality, Food Quality, Price Fairness and Customer Retention: A Holistic Perspective

2020 ◽  
Vol 2 (1) ◽  
pp. 1-5
Author(s):  
Ammar Ahmed ◽  
Rafat Naseer ◽  
Muhammad Asadullah ◽  
Hadia Khan
Keyword(s):  
Service Quality ◽  
Food Quality ◽  
Service Sector ◽  
Customer Retention ◽  
Price Fairness ◽  
Policy Makers ◽  
Restaurant Management ◽  
The Subject ◽  
Research Propositions ◽  
The Impact

In this competitive environment, organizations strive to satisfy their customer by providing best quality service at affordable and fair prices with a view to enhance their revenues. To achieve the objective of revenue maximization, organizations strive to identify the factors that help them in retaining their customers. Drawing from the signalling theory of marketing, the current study proposes a novel conceptual model representing the impact of service quality with food quality and price fairness on customer retention in restaurant sector of Pakistan. The paper underlines an important arena of knowledge for academicians as well as organizational scientists on the subject. On the basis of literature available on the variables understudy, the present study forwards eight research propositions worthy of urgent scholarly attention. The conceptualized model of the present article can also be viewed significant in unleashing further avenues for the restaurant management entities, policy makers and future researchers in the domain of managing in the service sector businesses.

Solow economy model

2019 ◽  
pp. 150-157
Author(s):  
Oleksandr Synenko ◽  
Kateryna Yarema ◽  
Yuliia Bezsmertna
Keyword(s):  
Economic Growth ◽  
Regression Analysis ◽  
Solow Model ◽  
Economy Model ◽  
Accelerated Depreciation ◽  
Basic Parameters ◽  
The Subject ◽  
Investment Process ◽  
The Impact ◽  
Model Algorithm

The subject of the research is the approach to the possibility of using the Solow model to perform the regression analysis on the example of the Ukrainian economy model. The purpose of writing this article is to investigate the notion of regres- sion analysis, Solow’s economy model, algorithm for performing regression analy- sis on the example of Ukraine’s economy model. This model can be adapted for the economy of enterprises. Methodology. The research methodology is system-struc- tural and comparative analyzes (to study the structure of GDP); monograph (when studying methods of regression analysis on the example of the Ukrainian economy); economic analysis (when assessing the impact of factors on Ukraine’s GDP). The scientific novelty consists the features of the use of the Solow model on the ex- ample of Ukrainian economy are determined. An algorithm for calculating the basic parameters of a model using the Excel application package is disclosed. The main recommendations on the development of the national economy and economic growth through the use of macroeconomic instruments are given. Conclusions. The use of the Solow model enables forecasting and analysis. The results obtained re- vealed the problem of low resource return of capital as a resource, along with the means of macroeconomic regulation of the investment process, using which can improve the situation. A special place in these funds belongs to the accelerated depreciation and interest rate policies.

Assessment of small businesses activities in Ukraine

2019 ◽  
pp. 40-47
Author(s):  
Igor Ponomarenko ◽  
Kateryna Volovnenko
Keyword(s):  
Comparative Analysis ◽  
Statistical Analysis ◽  
Small Business ◽  
Small Businesses ◽  
Government Agencies ◽  
Small Enterprises ◽  
The Subject ◽  
Business Entities ◽  
The Impact ◽  
Micro Enterprises

The subject of the research is a set of approaches to the statistical analysis ofthe activities of small business entities in Ukraine, including micro-enterprises. The purpose of writing this article is to study of the features of functioningof small business entities in Ukraine. Methodology. The research methodology isto use a system-structural and comparative analysis (to study the change in thenumber of small enterprises by major components); monographic (when studyingmethods of statistical analysis of small businesses); economic analysis (when assessing the impact of small business entities on socio-economic phenomena andprocesses in Ukraine). The scientific novelty consists to determine the features ofthe functioning of small businesses in Ukraine in modern conditions. The influenceof the activities of the main socio-economic and political indicators on the activities of small enterprises in recent periods of time has been identified. It has beenestablished that there is flexibility in the development of strategies by small businesses in conditions of significant competition, which makes it possible to quicklyrespond to changing situations in specific markets. Conclusions. The use of acomprehensive statistical analysis of small businesses functioning in Ukraine willallow government agencies to develop a set of measures to optimize the activitiesof these enterprises, which ultimately will positively affect the strengthening oftheir competitiveness and will contribute to the growth of the national economicsystem.

The Impact of Quantitative Easing on Emerging Markets – Literature Review

e-Finanse ◽  
2018 ◽  
Vol 14 (4) ◽  
pp. 67-76
Author(s):  
Piotr Bartkiewicz
Keyword(s):  
Emerging Markets ◽  
Large Scale ◽  
Empirical Literature ◽  
Quantitative Easing ◽  
Methodological Choices ◽  
The Subject ◽  
Methodological Approaches ◽  
The Impact ◽  
Sufficient Precision

AbstractThe article presents the results of the review of the empirical literature regarding the impact of quantitative easing (QE) on emerging markets (EMs). The subject is of interest to policymakers and researchers due to the increasingly larger role of EMs in the world economy and the large-scale capital flows occurring after 2009. The review is conducted in a systematic manner and takes into consideration different methodological choices, samples and measurement issues. The paper puts the summarized results in the context of transmission channels identified in the literature. There are few distinct methodological approaches present in the literature. While there is a consensus regarding the direction of the impact of QE on EMs, its size and durability have not yet been assessed with sufficient precision. In addition, there are clear gaps in the empirical findings, not least related to relative underrepresentation of the CEE region (in particular, Poland).

Assessment of sensitivity of the efficiency of regional tax spending towards investment attractiveness of the types of economic activity carried out by the residents of advanced development territory

2020 ◽  
pp. 98-110
Author(s):  
Evgeniya Mikhailovna Popova ◽  
Guzel Mukhtarovna Guseinova ◽  
Sergei Borisovich Milov
Keyword(s):  
Economic Activity ◽  
Socioeconomic Development ◽  
Federal District ◽  
Tax Incentives ◽  
Capital Investments ◽  
The Subject ◽  
Investment Process ◽  
The Impact ◽  
Advanced Development

The deficit of subnational budgets and deceleration capital investments in multiple Russian regions increase the relevance of research aimed at improvement of tax incentivizing practice of the regional investment process. The studies focused on determination of the impact of socioeconomic and institutional factors upon the efficiency of investment tax expenses obtained wide circulation within the foreign scientific literature. The subject of this article is the assessment of sensitivity of the efficiency of regional tax expanses towards investment attractiveness of the types of economic activity carried out by the residents of territories of advanced socioeconomic development, created in the subjects of Far Easter Federal District. The scientific novelty and practical values of this research consists in substantiation of the reasonableness of assessment of investment attractiveness of the types of economic activity that are stimulated by tax incentives. Methodology for assessing investment attractiveness is proposed and tested. The conclusion is made that in case of low investment attractiveness of the type of economic activity, which was planned to support by tax incentives, it is required to conduct and additional analysis to avoid unjustified tax expanses.

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