scholarly journals Correction to: Climate factors influencing effective use of geothermal resources in SE Poland: the Lublin trough

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Bartłomiej Ciapała ◽  
Jakub Jurasz ◽  
Mirosław Janowski ◽  
Beata Kępińska
2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Bartłomiej Ciapała ◽  
Jakub Jurasz ◽  
Mirosław Janowski ◽  
Beata Kępińska

AbstractAlthough geothermal resources are practically independent of climate factors, those factors significantly condition the potential use of the Earth’s natural heat resources. Unlike all the other factors limiting or facilitating the use of geothermal heat (like receivers’ temperature expectation, financial issues or local regulations), climate factors remain immovable. Thus, climate remains the main factor influencing the effective use of geothermal resources. Volumes of sold energy, typical capacity factors and rapid changes in heat demand may all influence the financial and technological performance of an investment. In the current paper, climate factors are translated into heat demand based on historical data (meteorological and district heating logs) by means of a dedicated artificial neural network, and analysed in terms of possible constraints and facilitators that might affect the effective use of geothermal energy. The results of ANN simulation indicate that average and typical operation is expected without any turbulences, yet about 10% of operating hours may require additional technical measures, like peak source support, smart management and buffers in order to limit pumping ramp rate. With appropriate dimensioning and exploitation, capacity factors as high as 60% are available, proving the potential for financially and environmentally effective use of geothermal resources.


Water ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 189
Author(s):  
Lili Yang ◽  
Tong Heng ◽  
Guang Yang ◽  
Xinchen Gu ◽  
Jiaxin Wang ◽  
...  

The factors influencing the effective utilization coefficient of irrigation water are not understood well. It is usually considered that this coefficient is lower in areas with large-scale irrigation. With this background, we analyzed the effective utilization coefficient of irrigation water using the analytic hierarchy process using data from 2014 to 2019 in Shihezi City, Xinjiang. The weights of the influencing factors on the effective utilization coefficient of irrigation water in different irrigation areas were analyzed. Predictions of the coefficient’s values for different years were made by understanding the trends based on the grey model. The results show that the scale of the irrigation area is not the only factor determining the effective utilization coefficient of irrigation water. Irrigation technology, organizational integrity, crop types, water price management, local economic level, and channel seepage prevention are the most critical factors affecting the effective use of irrigation water. The grey model prediction results show that the effective utilization coefficient of farmland irrigation water will continuously increase and reach 0.7204 in 2029. This research can serve as a reference for government authorities to make scientific decisions on water-saving projects in irrigation districts in terms of management, operation, and investment.


1976 ◽  
Vol 66 (1) ◽  
pp. 281-324 ◽  
Author(s):  
Jack F. Evernden

abstract This paper discusses seismological aspects of various proposed means of obscuring or hiding the seismic signatures of explosions from a surveillance network. These so-called evasion schemes are discussed from the points of view of both the evader and the monitor. The analysis will be conducted in terms of the USSR since that country is so vast and its geological and geophysical complexities are so great that the complete spectrum of hypothesized evasion schemes requires discussion. Part I of this paper was a general discussion of these evasion schemes, placing the concepts within the reality of general factors influencing effective use of the techniques. This part of the paper (part II) describes techniques for quantitative investigation of evasion schemes when the only noise problem is normal microseismic noise, and will give analyses of several seismological networks as regards their capabilities to restrain imagined clandestine testing by the USSR under such noise conditions. Part III will describe techniques appropriate for use when the noise problem is the P- and surface-wave codas of earthquakes, and will give analyses of capabilities of several seismological networks to restrain use of such codas for effective evasion.


2014 ◽  
Vol 16 ◽  
pp. 459-470 ◽  
Author(s):  
Urban Šebjan ◽  
Samo Bobek ◽  
Polona Tominc

2001 ◽  
pp. 61-76 ◽  
Author(s):  
Ashok Ranchhod ◽  
Julie Tinson ◽  
Fan Zhou

Despite the current development of Internet marketing, understanding the effective use of the Internet still poses problems for academic researchers and marketers (Kassaye, 1999). This research attempts to empirically explore some aspects of the factors influencing commercial company Internet and Web development. The key factors considered for company Internet and Web site development are technology capacity, the use of different developers, company on-line measurement patterns and marketing executives’ Web site knowledge. As a result of a cross-sectional comparative study of ‘effective’ and ‘ineffective’ companies, the findings indicate that companies with better performance from Web sites tend to possess higher technological capabilities for Internet-based marketing. It seems that their marketing executives have more knowledge of technical aspects of Web site development. They tend to be early Internet adopters using a multiple approach to measure their on-line performance. These results help to improve general understanding of company effectiveness in developing on-line marketing strategies.


Curationis ◽  
1982 ◽  
Vol 5 (2) ◽  
Author(s):  
W.P. Kortenbout

Disinfection means the freeing of an article from some or all of its burden of live pathogenic microorganisms which might cause infection during its use. The term is a relative one and disinfection may be described as being partially or highly effective according to the proportion of pathogenic organisms killed or removed.


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