Optimizing the placement of camping camping on the criterion of efficiency and safety

2016 ◽  
Vol 10 (2) ◽  
pp. 141-150
Author(s):  
Александр Ермаков ◽  
Aleksandr Ermakov ◽  
Даниил Черепанов ◽  
Daniil Cherepanov
Keyword(s):  
Mathematical Model ◽  
Economic Efficiency ◽  
Fire Safety ◽  
Geographical Location ◽  
Selection Processes ◽  
Regulatory Instruments ◽  
Selection Principles ◽  
Rational Organization ◽  
High Level ◽  
A Site

The article offers new selection principles of camping sites. Camping-parking for transit car-tourists and camping for tourists have different selection processes, preparation and organization of the site for them. It is important to take into account the maximum combination of attractions in the camping that is created. Geographical location of a site also assumes high level of security of car tourists in a camping. The authors consider requirements for the organization and following of fire safety instructions as the basic rules of security. Complying with the rules adopted for the European campgrounds is important in ensuring fire safety. They take into account a rational organization of the parking accommodation for vehicles (autocampers), tents or small houses, space for barbecue, administrative and other buildings. The authors develop a mathematical model of searching of rational placement camping for tourists, and make proposal for drawing up regulatory instruments that will reduce the threat of fire in camping. The economic efficiency of the proposed organizational and regulatory solutions is provided by reducing of costs and attractiveness increasing of these places of accommodation both for domestic and foreign car tourists.

A tes

2018 ◽  
Vol 1 (3) ◽  
Author(s):  
IJE Manager
Keyword(s):  
Energy Supply ◽  
Fossil Fuels ◽  
Geographical Location ◽  
Weather Conditions ◽  
Past Century ◽  
Solar Pv ◽  
Pv Systems ◽  
Trade Offs ◽  
A Site ◽  
Selection Methodology

In the past century, fossil fuels have dominated energy supply in Indonesia. However, concerns over emissions are likely to change the future energy supply. As people become more conscious of environmental issues, alternatives for energy are sought to reduce the environmental impacts. These include renewable energy (RE) sources such as solar photovoltaic (PV) systems. However, most RE sources like solar PV are not available continuously since they depend on weather conditions, in addition to geographical location. Bali has a stable and long sunny day with 12 hours of daylight throughout the year and an average insolation of 5.3 kWh/m2 per day. This study looks at the potential for on-grid solar PV to decarbonize energy in Bali. A site selection methodology using GIS is applied to measure solar PV potential. Firstly, the study investigates the boundaries related to environmental acceptability and economic objectives for land use in Bali. Secondly, the potential of solar energy is estimated by defining the suitable areas, given the technical assumptions of solar PV. Finally, the study extends the analysis to calculate the reduction in emissions when the calculated potential is installed. Some technical factors, such as tilting solar, and intermittency throughout the day, are outside the scope of this study. Based on this model, Bali has an annual electricity potential for 32-53 TWh from solar PV using amorphous thin-film silicon as the cheapest option. This potential amount to three times the electricity supply for the island in 2024 which is estimated at 10 TWh. Bali has an excessive potential to support its own electricity demand with renewables, however, some limitations exist with some trade-offs to realize the idea. These results aim to build a developmental vision of solar PV systems in Bali based on available land and the region’s irradiation.

Migration of Solutes in Unsaturated, Fractured Rock at Yucca Mountain: Measurements, Mechanisms, and Models

1995 ◽  
Vol 412 ◽  
Author(s):  
A. V. Wolfsberg ◽  
B. A. Robinson ◽  
J. T. Fabryka-Martin
Keyword(s):  
Solute Transport ◽  
Transport Model ◽  
Alternative Hypothesis ◽  
Fractured Rock ◽  
Yucca Mountain ◽  
Nuclear Waste Repository ◽  
Transport Studies ◽  
And Performance ◽  
High Level ◽  
A Site

AbstractCharacterization and performance assessment (PA) studies for the potential high-level nuclear waste repository at Yucca Mountain require an understanding of migration mechanisms and pathways of radioactive solutes. Measurements of 36C1 in samples extracted from boreholes at the site are being used in conjunction with recent infiltration estimates to calibrate a site-scale flow and solute transport model. This exercise using the flow and solute transport model, FEHM, involves testing different model formulations and two different hypotheses to explain the occurrence of elevated 36Cl in the Calico Hills unit (CHn) which indicates younger water than in the overlying Topopah Spring unit (TSw). One hypothesis suggests fast vertical transport from the surface via fractures in the TSw to the CHn. An alternative hypothesis is that the elevated 36C1 concentrations reflect rapid horizontal flow in the CHn or at the interface between the CHn and the TSw with the source being vertical percolation under spatially isolated regions of high infiltration or at outcrops of those units. Arguments in favor of and against the hypotheses are described in conjunction with the site-scale transport studies.

A PROSPECTS OF THE SUPER-INTENSIVE UNSUPPORTED GARDENS ESTABLISHMENT OF COLUMNAR APPLE TREE VARIETIES

1970 ◽  
pp. 45-48
Author(s):  
S. А. Korneeva ◽  
Е. N. Sedov ◽  
T. V. Янчук
Keyword(s):  
Economic Efficiency ◽  
Apple Tree ◽  
Maximum Yield ◽  
Biological Features ◽  
Apple Cultivars ◽  
High Level ◽  
Dwarf Rootstocks

Columnar apple cultivars are optimally suited to lay apple tree plantings using intensive technology, which provides for super-dense placement of trees. The article considers a variant of growing columnar apple cultivars on inserts of dwarf rootstocks 3-17-38 and 62-396. The use of dwarf rootstocks 3-17-38 and 62-396 as intercalar inserts in the cultivation of columnar apple cultivars, along with good anchoring of plants, provides high precocity, productivity and economic efficiency of planting. All the costs of laying the orchard and annual works on agrotechnical care of the trees were paid off in the fourth year after planting.The economic and biological features of the columnar cultivars provided not only a quick return of the investments, but also a high level of profitability. The profitability of the studied columnar planting for the 6th year after planting (2020) on average for all cultivars was 106.0 % on the insert of the dwarf rootstock 62-396 and 104.7 % on the insert 3-17-38. The profit received on average for the plantings amounted to 2 378 661 rubles per ha. In the group of the studied cultivars, there is a difference in economic efficiency. The lowest level of productivity and profitability was in the Vostorg cultivar: on average, on two inserts, the yield in 2020 was 27.3 t/ha and the profitability was 66.6%. The Girlyanda cultivar was characterized by the maximum yield and profitability: 88.0 t/ha and 115.8%, respectively.

History of foundry production. Why does the slash bell sound

2020 ◽  
pp. 57-68
Author(s):  
V. A. Sidorov ◽  
E. V. Osowska
Keyword(s):  
Mathematical Model ◽  
Initial Data ◽  
Complementary Methods ◽  
History Of ◽  
High Level

The article is devoted to the history of foundry production-casting of bells. This art was passed down from generation to generation, there were successful variants, but there were also defective bells. The authors analyzed in detail the different production of slotted bells. Bells are unique single products. They confirm the high level of skill of the master. The loss of sound properties of slotted bells depends on the ratio of the main dimensions, the size of the slits and their locations. The use of complementary methods for measuring mechanical and visualizing sound vibrations allows us to obtain initial data for the development of a mathematical model of sound vibrations of a bell. A continuation of the material about the art of manufacturing and the secrets of production will be published in the next issue of the magazine.

scholarly journals Antibiotic-driven Escape of Host in a Parasite-induced Red Queen Dynamics

2018 ◽  
Author(s):  
Elizabeth L. Anzia ◽  
Jomar F. Rabajante
Keyword(s):  
Mathematical Model ◽  
Stable Equilibrium ◽  
Parasitic Infections ◽  
Red Queen ◽  
Good Practices ◽  
Low Level ◽  
High Level ◽  
Host Parasite ◽  
The Red Queen

AbstractWinnerless coevolution of hosts and parasites could exhibit Red Queen dynamics, which is characterized by parasite-driven cyclic switching of expressed host phenotypes. We hypothesize that the application of antibiotics to suppress the reproduction of parasites can provide opportunity for the hosts to escape such winnerless coevolution. Here, we formulate a minimal mathematical model of host-parasite interaction involving multiple host phenotypes that are targeted by adapting parasites. Our model predicts the levels of antibiotic effectiveness that can steer the parasite-driven cyclic switching of host phenotypes (heteroclinic oscillations) to a stable equilibrium of host survival. Our simulations show that uninterrupted application of antibiotic with high-level effectiveness (> 85%) is needed to escape the Red Queen dynamics. Intermittent and low level of antibiotic effectiveness are indeed useless to stop host-parasite coevolution. This study can be a guide in designing good practices and protocols to minimize risk of further progression of parasitic infections.

scholarly journals Regional demographic policy as a component of social well-being of population (on the materials of Primorsky krai)

POPULATION ◽  
2019 ◽  
Vol 22 (4) ◽  
pp. 126-136
Author(s):  
Elena Kostina ◽  
Nadezhda Orlova ◽  
Anastasia Rubina
Keyword(s):  
Young People ◽  
Far East ◽  
Geographical Location ◽  
Well Being ◽  
Highly Qualified ◽  
Primorsky Krai ◽  
Qualified Personnel ◽  
And Migration ◽  
High Level ◽  
Demographic Policy

The relevance of the regional demographic policy study in the Far East is beyond doubt. This article considers the real demographic situation in Primorsky krai and shows that its territory has seen a steady decline in the population due to natural decrease and migration outflow connected with the low standard and quality of life that in turn reduces the attractiveness of the region and makes it particularly vulnerable to global challenges. Attention is paid to the fact that under the conditions of the Russian Federation subjects' differentiation by geographical location, natural resources potential and level of socio-economic development there is no single approach to the regional demographic policy. Differences in the characteristics of the subjects lead to the necessity of developing demographic programs that would take into account the regional specifics, traditions, characteristics and needs of a particular territory. There are presented the results of the author's study of subjective assessments of the social well-being of young people in Primorsky krai and their migration intentions. The data obtained show that a significant part of young people assess the situation in Primorsky krai as unfavorable for further self-realization; the majority of respondents answered that in other regions/countries it would be easier for them to build a career, start a business, and achieve a high level of material well-being. The directions of the regional demographic policy, which allow attracting and retaining highly qualified personnel in the region, are suggested.

scholarly journals Economic-Mathematical Model for Assessing the Sensitivity of International Innovation and Investment Projects

2019 ◽  
Vol 8 (12) ◽  
pp. 140-145
Keyword(s):  
Mathematical Model ◽  
International Business ◽  
Economic Efficiency ◽  
Net Present Value ◽  
Present Value ◽  
Investment Activity ◽  
Investment Projects ◽  
Internal Parameters ◽  
Proposed Model ◽  
Sensitivity Indicator

International innovation and investment activity occupy a special place in the system of modern international business. The authors propose an economic and mathematical model for assessing the sensitivity of international innovation and investment projects by the criterion of net present value. It is advised to use the obtained sensitivity indicator as an additional one in assessing the economic efficiency of international innovation and investment projects of an enterprise. The proposed model makes it possible to determine the effect of several internal parameters simultaneously on the net present value of the project.

“The Ghosts Are Watching”: The Globe's Battlefield Performances ofHenry VI

2018 ◽  
Vol 59 (1) ◽  
pp. 45-62
Author(s):  
Joyelle Ball
Keyword(s):  
Geographical Location ◽  
Historical Narrative ◽  
Site Specific ◽  
Historical Significance ◽  
Performance Space ◽  
Wars Of The Roses ◽  
Henry Vi ◽  
Historical Sites ◽  
A Site ◽  
Physical Access

In the summer of 2013, Shakespeare's Globe, the company based at the Globe reconstruction in London, mounted productions of the three parts of Shakespeare'sHenry VIat Wars of the Roses battlefield sites. The battlefield as performance space, with its rolling hills and buried corpses, mediated the temporal overlap of past and present, as contemporary bodies engaged with the construction of a historical narrative in the fictional play and the actual historical moments of the Wars of the Roses. The associations entrenched in the soil of these sites, the physical remains and histories of the past, encode a connective experience for the contemporary participants interacting with it. The battlefield site, then, is not just a site of historical significance—it is also a site of historical reenactment, where present bodies meet absent ones in the Globe's attempt to converge separated temporalities. The Globe framed the battlefield performances as a way of enlivening history by grounding well-worn Shakespearean texts in the places they represent. But the Globe, in collaboration with The Space, an online arts collective, also filmed the ten-hour marathon event at the Barnet battlefield, live-streamed, and then saved the performance to a digital archive. So the Globe displaced the site of their site-specific experience. Virtual spectatorship, a result of the Globe's efforts to increase access to their battlefield performances by making them available online, adds another layer of absence to the battlefield. The virtual spectator as absent spectator challenges the privileging of a physical viewing experience that the Globe's “open-air” project promotes. The displacement of site disrupts the relationships grounded in the material performance space and its geographical connections, and expands the understanding ofsite-specificby demonstrating how a specific relationship to place might be produced and maintained without physical access to a geographical location. Together with their placement at the historical sites and transmission into virtual spaces, the battlefieldHenry VIs generate a multiplicity of shared viewing experiences. These shared experiences mediate the continuation of a (re)constructed historical and collective memory and highlight the role of spectatorship, both physical and virtual, in the formation of communal and national identity.

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