scholarly journals Multi-storey wooden house building

2019 ◽  
Vol 110 ◽  
pp. 01035
Author(s):  
Alexey Slavin ◽  
Sevada Grigoryan ◽  
Egor Popandopulo ◽  
Aleksandra Balaeva

The study solves the following tasks: analysis of construction technologies that prevent environmental pollution, the development of wooden housing construction objects, the wooden housing construction strategy and the term of its implementation, and a comparison of Russian and international experience in the development of wooden housing construction. According to the results of the study, the technology of construction of multi-storey wooden houses can be a very promising component for improving the quality of life of the population, moreover, a priority from an economic point of view and effective for the development of facilities that contribute to the improvement and compliance with environmental safety requirements. The most effective type of construction in this industry is the construction of LVL timber and CLT panels. Minimum construction time, environmental friendliness and availability of this technology will accordingly improve the living conditions of the population and thus the overall environmental condition.

2021 ◽  
Vol 244 ◽  
pp. 11012
Author(s):  
Anastasia Aksenova

The relevance of the research topic is due, primarily, to the development trends of the construction industry of the Russian Federation in the face of declining quality of building products, the main reasons are low level of qualification, the lack of systematic monitoring at all stages of the production cycle, the deterioration of product quality of design and survey organizations. Today, the process of carrying out design and survey works is implemented in the conditions of an outdated regulatory and technical base, incorrectly drawn up technical tasks, and in some cases without prior approval of the technological part. The production cycle of construction products begins with the stage of design and survey work. The defining direction in the process of forming such characteristics of finished construction products as quality, its safety for the environment and consumers is the continuous improvement of this stage in changing conditions. Ensuring effective management of the process of creating design and estimate documentation allows to monitor, control and improve the quality, environmental friendliness and safety of construction products at each stage of its design. High indicators of quality, safety for the environment and consumers of design and survey products depend on the combined interaction of internal factors of the organization that ensure its sustainable development in constantly changing external conditions. It is at the stage of design and survey work that decisions are made on the criteria of economic and environmental efficiency of construction and operation of construction products. Design and survey organizations act as guarantors of both the safety of the future object and the payback of the resources invested by the customer, laying in the products the most cost-effective and modern technical solutions from the point of view of human and environmental safety.


2020 ◽  
Vol 11 (87) ◽  
Author(s):  
Nataliia Dovha ◽  
◽  
Hryhorii Tsehelyk ◽  

The processes of optimization of the production plan according to certain criteria by modeling were investigated. Achieving effective results directly depends on the optimal production plan. The most important thing in determining the optimal production plan is the choice of modeling criteria. For the most part, the quality of decisions is characterized not by one but by many incomparable criteria. Therefore, it is necessary to make decisions based not on one but on many criteria. This so-called multi-objective optimization problem. For solving such problems is widely used mathematical methods. Mathematical approach can be used to solve problems in any particular activity as mathematics abstracted from specific features characteristic of a particular solution. Therefore, from the point of view of mathematics, the optimal result can be obtained with various established criteria, but from the economic point of view it is important to choose the ones that are of decisive importance. That is, their weight is important for the consumer when making a purchase decision, and for the manufacturer – in terms of production capabilities of certain types and results (production efficiency). The basis of the operation of any enterprise is a production program (production and sales plan). The main task of the production plan is to meet the needs of consumers in high-quality products, which are produced with the best use of resources, on the one hand, and the enterprise to get the maximum profit, on the other. With this in mind, a two-criteria optimization model that allows to make a production plan was proposed. The plan ensures that products are produced with the best use of available resources and at the same time ensures maximum quality of manufactured products and maximum profit from sales of these products. The solution of the problem with two objective functions and linear constraints is achieved by step-by-step solution of the proposed mathematical model of optimization of the production plan using the method of sequential restrictions. The simplex method was also used. An example shows an algorithm for solving the optimization problem.


2016 ◽  
Vol 41 (3) ◽  
pp. 419-432
Author(s):  
MS Alam ◽  
N Islam ◽  
S Ahmad ◽  
MI Hossen ◽  
MR Islam

The study was carried out during summer of 2012 with BARI hybrid tomato 4, planted in the Olericulture farm of Bangladesh Agriculture Research Institute, Joydebpur, Gazipur, Bangladesh to find out the response of plants to some staking and pruning treatments on yield, fruit quality and cost of production. A two factor experiment consisting of three staking methods and four level of pruning, laid out in complete block design with three repetitions. Plants were staked on inverted „V? shaped staking, high platform and string. The plants were pruned to two stem, three stem, four stem and no pruning as control. Results showed that significantly the highest total number of fruits per plant (37.1), marketable fruits per plant (33.7), yield per plant (1.68 kg) and total yield (44.6 t/ha) were produced by the plants having the treatment string staking with four stem. The highest fruit set (43.50%) was found in the plants staking with string having three stems. Plants grown on string staking allowing two stem gave the maximum length (4.71 cm), diameter (4.83 cm) and weight (53.4g) of single fruit as well as maximum fruit firmness (3.43 kg-f cm-2). From the economic point of view, it was apparent that summer tomato produced by string staking with four stem pruning exhibited better performance compared to other treatment combinations in relation to net return and BCR (2.10).Bangladesh J. Agril. Res. 41(3): 419-432, September 2016


2020 ◽  
Vol 5 (10) ◽  
pp. 88
Author(s):  
Salvatore Trubia ◽  
Alessandro Severino ◽  
Salvatore Curto ◽  
Fabio Arena ◽  
Giovanni Pau

The goal of civil engineering has always been the research and implementation of methods, technologies, and infrastructures to improve the community’s quality of life. One of the branches of civil engineering that has the strongest effect on progress is transport. The quality of transport has a profound economic and social impact on our communities regarding trade (freight transport) and city livability (public transport systems). However, innovation is not the only way to improve the features above-mentioned, especially public transport, considering that it is usually beneficial to enhance and repurpose vehicles with appropriate adjustments to offer more efficient services. Other perspectives that influence public transport systems are the costs and times of design and construction, maintenance, operating costs, and environmental impact, especially concerning CO2 emissions. Considering these issues, among the various types of existing public transport systems, those of the so-called Bus Rapid Transit (BRT) offer worthwhile results. The BRT system is a type of public road transport operated by bus on reserved lanes, and it is significantly profitable, especially from an economic point of view, in areas where there are existing bus routes. Nonetheless, for the construction of works minimization, it is closely linked to other features that improve its usefulness, depending on the vehicles’ quality such as capacity, but above all, the propulsion or driving autonomy that would guarantee high efficiency. This paper introduces an analysis of some BRT systems operating worldwide, presenting the background, general technical features, and the correlation with autonomous vehicles.


elni Review ◽  
2015 ◽  
pp. 10-16
Author(s):  
Guiseppe Sgorbati ◽  
Nicoletta Dotti

Although the European rules on water, which are mainly based on the Water Framework Directive (WFD 2000/60/EC), have been in force for many years, the quality of waters in Europe still have huge room for improvement before they can fulfil the objectives set by the WFD and by its “daughters Directive”. Two questions are key here: Are the European rules adequate for this challenging goal? If yes, are the rules applied homogeneously and correctly in European Union Countries or do many issues remain which prevent their full implementation? This article provides a broad overview of water issues in Europe, focusing on the level of fulfillment of requisites from EU legislation and the level of its implementation in Member States. This point of view has been adopted because an uneven implementation of EU laws prevents several European citizens from fulfillment of their right to a healthy environment and a good water resource quality and, furthermore, endangers the level playing field across Europe, from a social and economic point of view.


2021 ◽  
Vol 51 ◽  
Author(s):  
Romário Martins Costa ◽  
Marcos Renan Lima Leite ◽  
Sâmia dos Santos Matos ◽  
Rayssa Carolinne Mouzinho de Sousa ◽  
Raissa Rachel Salustriano da Silva-Matos ◽  
...  

ABSTRACT The use of pre-sprouted seedlings in the implantation of sugarcane crops not only reduces the establishment period and production costs, but also has other advantages, such as a lesser requirement of propagules (stems) and greater phytosanitary control of the seedlings, when compared to conventional planting. Commercial substrates are also expensive and their use increases the cost of seedlings. This study aimed to evaluate the quality of sugarcane pre-sprouted seedlings grown on substrates with different proportions of decomposed babassu palm stem (DBPS), as well as to recommend the substrate formulation that provides the most favorable environment for the growth and development of sugarcane pre-sprouted seedlings. For preparation of the substrate (S), DBPS and soil were used in the following proportions: S1: 0 % of DBPS + 100 % of soil; S2: 20 % of DBPS + 80 % of soil; S3: 40 % of DBPS + 60 % of soil; S4: 60 % of DBPS + 40 % of soil; S5: 80 % of DBPS + 20 % of soil; S6: 100 % of DBPS + 0 % of soil. The use of S2 and S3 considerably improved the seedling quality parameters, such as sprout diameter and length, number of leaves and total, shoot and root dry mass. However, from an economic point of view, S2 is recommended for use.


2020 ◽  
Vol 13 (1) ◽  
pp. 150-166 ◽  
Author(s):  
Brij B. Gupta ◽  
Prachi Gulihar

Recently the study of economics of internet has emerged as an emerging field of study. The workstations being distributed across the network along with the users having varied interests has made this study very important from an information security and policy designing point of view. The main purpose of any framework design is to keep up with the security standards of confidentiality, integrity and availability without being an overburden on the deployer. The same goes for the users, the Quality of Service (QoS) should be in accordance with what they pay for. The concept of “tragedy of commons” plays an important role in distributing the limited resources of the internet. In this, the users because of their own self-interest destroy the collective interest of a community sharing the resource. A sustainable pricing strategy is the one which is able to cater to the competitive advantage of different network providers offering the same set of services but on varied prices. A pricing mechanism will help in differentiating the services offered to the users, but another important task is of fixing the incentives. The pricing strategy plays a very important role in facilitating varied kinds of QoS requirements. Security professionals have realized that while designing any security mechanism it is vital to keep in consideration the “theory of mind” which explains the way the attackers and benign users take decision to deceive of remain loyal to the system. So, studying the incentive and payment structure from economic point of view is important.


2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Akhmad Hulaify ◽  
Syahrani Syahrani

       This research entitled the concept of work in improving the quality of work in perspective of Islamic economics. The orientation of ethic in the study of Islamic economics perspective is to discover work ethic of the essence of a work that expected to increase the quality of work. Based on the intention of this research, the author used sociology approach and normative approach. The aim of this research is to analyze how the study of wok ethics in Islamic economics perspective, it is expected that with those approach, this study can reveal the ethics values from Islamic law side. Beside of that, this study also discusses the result of research using qualitative descriptive analysis model. The analysis is meant to describe the meaning of work ethic not only in one economic point of view but from the perspective of Islamic Economics. Besides, the analysis is intended to get a new perspective to work ethics concept oriented to the essence of faith.       The conclusion of this research is manifestation of faith that implemented in the quality of work then work orientation will lack the sincere and good pleasure of Allah SWT.  Therefore, the orientation of work is not only because material but ridha Allah SWT. If it has become a spirit in work the meaning of falah in the concept of Islamic Economy is realized and fulfilled. Keywords:Ethis, Works, Quality, Islamic Economics. 


2021 ◽  
Author(s):  
Huseynov Shamil ◽  
Mayborodin Sergey

Over the long years of the development of agro-technological approaches to the methods of grape growing, researchers paid special attention to the issues of pruning grape bushes, the methods of their formation and maintenance and planting plans. In the environmental conditions of the Lower Don of the Russian Federation, many years of research were conducted in order to establish the optimal parameters of various agro-technological methods used in the vineyard (the methods of maintaining, forming, pruning and the rates of bush loading) through the example of a promising variety of Crystal grapes of interspecific origin. At the same time, a prerequisite for this research was the link with the scheme of planting vines and its effect on the productivity of uncultivated vineyards, as well as the quality of the crop. In this study, we proposed the technological and economic advantages of industrial and intensive methods of maintaining and forming vineyards on an industrial basis. These methods were new for the Don conditions. We conducted research and studied various ways of maintaining, forming, pruning and loading grape bushes in the Rostov Region, in the conditions of the experimental field, which increased the use of photosynthetic active radiation (PAR) in the production process on standard open-earth vineyards of industrial and intensive type, when cultivating Crystal grape varieties of interspecific origin. Processing and analysis of the results of the application of various agricultural methods in the experimental areas will reveal the most optimal ones from an economic point of view. Keywords: grapes, architectonics, management method, productivity, biomass


Author(s):  
Arsen Dzhabrailov ◽  
Oleksii Palant

Having completed a theoretical study of the conditions for the emergence of the main economic problems of tram enterprises functioning, the article gives a theoretical and economic evaluation of the prospects for the use of modern ballastless technologies in the construction / reconstruction of tram tracks. This proves the relevance of the chosen topic. The article also provides an analytical review on the current situation and prospects for the development of tramway track facilities of transport enterprises belonging to the communal property of city councils. The emphasis is made on recommendations for the implementation of the latest ballastless technologies for reconstruction / construction of tramways. A comparative characteristic of traditional (sleeper) and ballastless technologies is presented. It is proved that the latter is more profitable from the economic point of view, given its durability and a significant reduction in track maintenance costs, as well as preventing other negative manifestations inherent in outdated tram tracks – noise, vibration, wandering currents, etc. The possible negative tendencies of the ballastless technology application are characterized. The article also identifies the main causes of the crisis in urban electric transport and provides a detailed list of the main directions of reforming urban public electric transport. The formulated concept and measures for its implementation are undoubtedly an effective tool on the way to break even operation of municipal electric transport enterprises of the country. The measures envisaged will allow stabilizing the work of the industry enterprises, expanding the area of transport services for the population of cities, increasing the availability of transport services, putting things in order with speed, regularity, traffic safety and comfort of travel, increasing the attractiveness of urban electric transport and attracting new passengers. Therefore, we believe that in the future, during the reconstruction of existing and construction of new tramways, the implementation of projects based on the use of ballastless tracks will become the main structure of the superstructure of tramways in a megalopolis, taking into account its durability, environmental friendliness and efficiency during operation.


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