scholarly journals RESEARCH OF INNOVATIVE MECHANISMS CREATION OF MODERN BUILDING MATERIALS FOR IMPROVEMENT OF PRODUCTION PROCESSES

2021 ◽  
pp. 73-78
Author(s):  
A. V. RADKEVICH ◽  
E. N. MISHUK ◽  
S. V. PASTUKHOVA
Keyword(s):  
Building Materials ◽  
Protective Layer ◽  
Surface Damage ◽  
Technical Condition ◽  
Normal Operation ◽  
Additional Layer ◽  
Key Factor ◽  
Continuous Surface ◽  
Restoration Work ◽  
Definition Of

Purpose. To reveal the mechanism of formation of contact zones and purposeful choice of mastic composition and its substantiation on the basis of revealing of regularities of interrelations "mastic composition – waterproofing resource". Methodology. The sequence of changes in the technical condition of roofing materials, which varies from normal without damage to emergency with intermediate satisfactory and unsuitable for normal operation depending on the specific damage and leakage of the roof affects the definition of conventional material resources, means and methods of arrangement and arrangements. roofs, as well as the mechanism and kinetics of loss of serviceability are a key factor in improving the whole set of measures aimed at making technology competitive. Results. Technologies of repair of point and local damages in the form of cracks, breaks, exfoliations which are carried out by cutting and the subsequent gluing of pieces of cloths on the prepared sites with filling, allow to receive short-term results. Elimination of continuous surface damage by applying an additional layer of rolled or mastic material is associated with the inevitable preservation in the lower layers of the causes of premature loss of operational functions of the coating. The results provide an opportunity to perform non-dismantling repair and restoration work using purposefully proposed repair composition with the minimum possible cost of resources and a high degree of mechanization. The developed technology is based on the ability of the used repair composition to impregnate and saturate the adjacent surfaces with ingredients that can eliminate damage of a certain type and return the coating or protective layer of the initial waterproofing potential and strengthen it. Originality. Substantiation of possibilities of use of the residual waterproofing resource of the existing soft roof by its saturation with ingredients of the offered repair composition. Practical value. It is possible to effectively use, restore and enhance the residual waterproofing potential of bitumen-roofing roof by pneumatic spraying repair composition of the developed composition.

scholarly journals MODEL OF AN ESTIMATION OF A RESOURCE OF TRACTION TRANSFER OF A MOTOR CARLOAD ROLLING STOCK

2015 ◽  
Vol 2 (158) ◽  
Author(s):  
Aleksandr Babanin ◽  
Sergiy Yarovoy ◽  
Vadim Bulba
Keyword(s):  
Life Cycle ◽  
Service Life ◽  
Motor Block ◽  
Technical Condition ◽  
Normal Operation ◽  
Rolling Stock ◽  
Definition Of ◽  
Analytical Expressions

In clause questions of definition of a resource of the wheel motor block traction transfer of a motorcarload rolling stock are considered. Problems of forecasting of a technical condition of responsible units oftraction transfer are certain. The model of deterioration in which the periods extra earnings are allocated,normal operation, intensive deterioration and prolongation of service life of the wheel motor block of amotor carload rolling stock is formalized for weigh his life cycle. For each allocated period meetingdependences of speed and intensity of deterioration are offered. According to dependences calculations arelead and analytical expressions of wear of points of cog-wheels of power reducing of traction transfer whichallow to predict his resource in operation are received.

scholarly journals Analysis of vibrodiagnostics methods in the technical state study of designed multimedia mobile scenes

2019 ◽  
Vol 302 ◽  
pp. 01011
Author(s):  
Marcin Łukasiewicz ◽  
Michał Liss ◽  
Natalia Dluhunovych
Keyword(s):  
Modal Analysis ◽  
Diagnostic Tests ◽  
Research Process ◽  
Technical Condition ◽  
Technical State ◽  
Normal Operation ◽  
Design Stage ◽  
Analysis Methods ◽  
State Study ◽  
Diagnostic Research

The paper presents the possibilities of using vibroacoustic methods in the study of the technical condition of designed multimedia mobile scenes. In particular, the possibility of implementing modal analysis methods in modelling and diagnostic research process has been presented. The use of virtual methods enables diagnostic tests both at the design stage and at the stage of normal operation, whereas modal methods help to explain the nature of the work of the element under investigation.

Experimental Investigation of the Compatibility of Lime Coating with Insulation Straw Biocomposite

2022 ◽  
Author(s):  
Oumayma Bahou ◽  
Naima Belayachi ◽  
Brahim Ismail
Keyword(s):  
Experimental Investigation ◽  
Building Materials ◽  
Construction Sector ◽  
Additional Layer ◽  
Aesthetic Appearance ◽  
Innovative Solutions ◽  
Casein Protein ◽  
The Subject ◽  
Considerable Degradation ◽  
Bond Tests

The use of bio-based composite as building materials is one of the innovative solutions for dealing with environmental disorders caused by the construction sector. Among these materials we find biocomposites based on vegetable aggregates, which have proven their effectiveness as insulating materials in numerous studies. Despite the growing interest in these materials and the recognition of their performance, their use remains hampered by the lack of implementation rules specific to these materials to move towards a control of their use and their durability affected by the climate and use conditions to which they will be exposed at the level of a building. The objective of this work is to study the compatibility of a protective coating with a block substrate of biocomposites based on cereal straw. It is in fact a mixture of vegetable aggregates (straw), a binder composed of lime and additives also obtained from a renewable source (Ismail et al., 2020). These additives (air-entraining agent, casein protein and a biopolymer) have been added to improve both the fibre-binder interface and the porosity of the binder. The use of these bio-based materials for external or internal thermal insulation of the building requires the application of a coating to protect them against climatic aggressions and to give them an aesthetic appearance. The lime-based coatings, air-entraining agent and casein protein selected for this study have been the subject of an experimental investigation (Brahim Ismail, 2020). In order to assess the compatibility of these coatings with the straw-based insulating material, we were interested in studying the adhesion between the biocomposite and the coating after aging cycles in accordance with the EN 1015-21 standard. The samples (biocomposite + coating) were subjected to two types of aging, one using water and the other using a saline solution of sodium sulphates (Na2SO4). The results of the bond tests after aging showed that the cohesive fracture (at the level of the substrate) is a pattern observed in all the studied systems. In Addition, It has been found that the coating to which a percentage of fine fibers has been added undergoes considerable degradation after aging with salt solution, demonstrating the need of an additional layer of outer coating without fibers in order to ensure the sustainability of the system.

Il modello sociale europeo. Valutazioni e contributi delle chiese e confessioni religiose d'Europa

2013 ◽  
pp. 21-33
Author(s):  
Marco Ricceri
Keyword(s):  
Social Model ◽  
Integration Process ◽  
Religious Congregations ◽  
Religious Traditions ◽  
European Social Model ◽  
The Social ◽  
Essential Components ◽  
Key Factor ◽  
National Welfare ◽  
Definition Of

The evolution of the European integration process and the foundation of the Union, invite us to consider the National welfare systems in a wider outlook: the European Social Model (ESM). Integration process and EU foundation are both essential components to the ESM and they receive constant impulse towards the adoption of modern practices and rules. Without reference to the European framework we run the risk to simplify the understanding of both specific features of the national welfare models and of the contribution given by the religious traditions to their development. It is at the European level that the Churches and the religious Congregations have been able to introduce several central elements in the new social policy guidelines valid for the all national systems. An analysis and assessment of the influence brought by the Churches to the E.U. becomes a key factor in a scientific analytical study. Chapter aims to discuss: a) approaches to the "Social Question" assumed by the European authorities; b) the social system as defined by the Lisbon Treaty (2007); c) a shared definition of the "European Social Model"; d) the influence of Religious Congregations to defining the E.U. principles; e) the support of the Churches towards a sustainable social and economic development.

scholarly journals PECULIARITIES OF MATERIAL RESOURCE MANAGEMENT OF ENTERPRISES OF BUILDING MATERIALS

2021 ◽  
Author(s):  
Iryna Hobyr ◽  
Lidiia Hobyr
Keyword(s):  
Inventory Management ◽  
Building Materials ◽  
Construction Materials ◽  
Design And Technology ◽  
Resource Saving ◽  
New Production ◽  
Utilization Factor ◽  
Resources Management ◽  
Material Resources ◽  
Definition Of

In a market economy, it becomes important to improve the organization of enterprise management and, above all, the production process, efficient use of financial, material resources and inventories. Effective management of material resources increases profits and provides the necessary investment. To maintain high profitability and liquidity, the management of current activities of enterprises, in particular inventory management plays a significant role. The categorical apparatus of material resources management at the enterprise is considered, the definition of “material resources” is generalized, the definition of "material resources management" is offered, and also the system of material resources management at the enterprise is considered. In the management of material resources at the enterprise there are 2 approaches – logistics and reengineering. The main tasks of the mechanism of management of material resources of the enterprise of building materials are defined. These are: increasing the efficiency of material resources and choosing cheap sources of funding; introduction of new production, resource-saving technologies; minimization of costs for procurement, production and marketing activities; increasing the interest of employees of all services in the effective performance of their duties; product quality management. The analysis of efficiency of use of material resources at the enterprises of building materials which has shown, that manufacture of production is rather material-intensive is carried out. This is evidenced by the share of material costs in the cost of work, and the value of the utilization factor of materials indicates the economical use of material resources in production. Reserves for improving the efficiency of material resources at construction materials enterprises have been identified. The ways of the most rational use of material resources of construction materials enterprises are offered, in particular it is improvement of a design and technology of manufacturing of products, introduction of more progressive norms of expenses of resources, use of substitute materials, and reduction of losses at stages of transportation, storage and industrial use.

scholarly journals SMART POWER AS THE FACTOR IN THE SINO-U.S. RELATIONS

2020 ◽  
Vol 5 (2(71)) ◽  
pp. 4-7
Author(s):  
Cheng Guo ◽  
Yin Qun
Keyword(s):  
International Relations ◽  
Public Diplomacy ◽  
Theoretical Perspective ◽  
Research Work ◽  
The United States ◽  
World Politics ◽  
Smart Power ◽  
Power Construction ◽  
Key Factor ◽  
Definition Of

This research work analyzes the characteristics of American public diplomacy from the perspectives of smart power theory, comparing China and the United States’ smart power strategy. The article revealed that globalization and the process of technological evolution have led profound changes in the contempopary world politics and international relations, the smart power factors such as culture, science, technology, and information have become increasingly prominent in political science. These factors have not only created the fundamental theory of smart power, but also affected the form and definition of diplomacy. The research methodology is based on a complex combination of scientific methods, mainly comparative, analytical, systematic. The obtained conclusions can be referred that smart power as a key factor, has become a new theoretical perspective for understanding changes in contempopary international relations and foreign policy. It has naturally become the theoretical support for public diplomacy, meanwhile public diplomacy itself is also an important content and strategic path for smart power construction.

Indigenato Before Race? Some Proposals on Portuguese Forced Labour Law in Mozambique and the African Empire (1926–62)

2012 ◽  
Author(s):  
MICHEL CAHEN
Keyword(s):  
Careful Analysis ◽  
Native People ◽  
Smooth Transition ◽  
Skin Colour ◽  
Labour Law ◽  
Capitalist Economy ◽  
Social Sphere ◽  
Key Factor ◽  
Forced Labour ◽  
Definition Of

Was blackness the key factor for labelling native people as ‘non-civilised’ and thus to be pushed into forced labour in Portuguese Africa? Without denying the importance of blackness as a stigmatising tool, this chapter argues, through a careful analysis of colonial law and practice, that the production of ‘nativeness’ was related to clear consciousness of Africans living outside the capitalist economy and social sphere. This helps us to understand that emerging forced labour represented not a smooth transition from slavery, but a rupture between two colonial ages and modes of production. Therefore, if colonial racism obviously used skin colour to construct a social bar, above all it used the definition of otherness as external to the capitalist sphere. Petty whites and natives could live side by side in suburban neighbourhoods, but in two impermeable spheres. Racism was pervasively present, but it was more social than racial.

Analysis of the Effect of Human Presence on a Wireless Sensor Network

2014 ◽  
pp. 1-11 ◽  
Author(s):  
Ben Graham ◽  
Christos Tachtatzis ◽  
Fabio Di Franco ◽  
Marek Bykowski ◽  
David C. Tracey ◽  
...  
Keyword(s):  
Building Materials ◽  
Network Reliability ◽  
Signal Propagation ◽  
Wireless Sensor ◽  
Human Presence ◽  
Node Placement ◽  
Rf Transceivers ◽  
Outdoor Environments ◽  
Key Factor ◽  
Rf Signal

Wireless Sensor Networks (WSNs) are gaining an increasing industry wide adoption. However, there remain major challenges such as network dimensioning and node placement especially in Built Environment Networks (BENs). Decisions on the node placement, orientation, and the number of nodes to cover the area of interest are usually ad-hoc. Ray tracing tools are traditionally employed to predict RF signal propagation; however, such tools are primarily intended for outdoor environments. RF signal propagation varies greatly indoors due to building materials and infrastructure, obstacles, node placement, antenna orientation and human presence. Because of the complexity of signal prediction, these factors are usually ignored or given little weight when such networks are analyzed. The paper’s results show the effects of the building size and layout, building materials, human presence and mobility on the signal propagation of a BEN. Additionally, they show that antenna radiation pattern is a key factor in the RF propagation performance, and appropriate device orientation and placement can improve the network reliability. Further, the RSS facility in RF transceivers can be exploited to detect the presence and motion of humans in the environment.

Analysis of the Effect of Human Presence on a Wireless Sensor Network

2011 ◽  
Vol 3 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Ben Graham ◽  
Christos Tachtatzis ◽  
Fabio Di Franco ◽  
Marek Bykowski ◽  
David C. Tracey ◽  
...  
Keyword(s):  
Building Materials ◽  
Ad Hoc ◽  
Network Reliability ◽  
Signal Propagation ◽  
Wireless Sensor ◽  
Human Presence ◽  
Node Placement ◽  
Area Of Interest ◽  
Key Factor ◽  
Rf Signal

Wireless Sensor Networks (WSNs) are gaining an increasing industry wide adoption. However, there remain major challenges such as network dimensioning and node placement especially in Built Environment Networks (BENs). Decisions on the node placement, orientation, and the number of nodes to cover the area of interest are usually ad-hoc. Ray tracing tools are traditionally employed to predict RF signal propagation; however, such tools are primarily intended for outdoor environments. RF signal propagation varies greatly indoors due to building materials and infrastructure, obstacles, node placement, antenna orientation and human presence. Because of the complexity of signal prediction, these factors are usually ignored or given little weight when such networks are analyzed. The paper’s results show the effects of the building size and layout, building materials, human presence and mobility on the signal propagation of a BEN. Additionally, they show that antenna radiation pattern is a key factor in the RF propagation performance, and appropriate device orientation and placement can improve the network reliability. Further, the RSS facility in RF transceivers can be exploited to detect the presence and motion of humans in the environment.

scholarly journals Unique Hair Properties that Emerge from Combinations of Multiple Races

Cosmetics ◽  
2019 ◽  
Vol 6 (2) ◽  
pp. 36 ◽  
Author(s):  
Toshie Takahashi
Keyword(s):  
Mixed Race ◽  
Surface Damage ◽  
Unique Property ◽  
Human Populations ◽  
Severe Damage ◽  
Curly Hair ◽  
Definition Of ◽  
Hair Properties ◽  
Mixed Ethnicity ◽  
Hair Surface

The fusion of ethnicity in human populations is becoming increasingly common, so the conventional definition of ethnicity is going to become deficient. The aim of this study was to investigate the hair properties which emerge from combinations of multiple races. Hair fibers collected from mixed-race subjects were investigated and classifications of hair shape as well as measurements of thickness, ellipticity and surface damage were carried out. The results show that hair shapes varied widely: straight hair and very curly hair often existed together on the heads of individuals with mixed ethnicity. Curly hair tended to be thicker than loose wavy hair. As for damage to the hair surface, the hairs of mixed-race subjects showed a very unique property in that they were much more severely damaged near the root (the proximal end) than the hairs of monoracial subjects. The hair shape (curly or loose wavy) was not related to the level of damage. The severe damage near the proximal end is thought to be caused by entanglement, due to the presence of various curl phases. This study reports the unique characteristics of hairs of subjects with mixed ethnicity, which have never been noted in the previous studies on subjects with a monoracial background.

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