scholarly journals Digital seismic logger "Ermak-5". Five years of development

2021 ◽  
Vol 3 (3) ◽  
pp. 84-94
Author(s):  
Pavel Butyrin
Keyword(s):  
Comparative Analysis ◽  
Power Management ◽  
Field Experiments ◽  
Qualitative Comparative Analysis ◽  
Power Supplies ◽  
Published Data ◽  
State Register ◽  
Power Management System ◽  
Infor Mation

The published data on several well-known seismic recorders used in modern seismological moni-toring systems are considered, and their qualitative comparative analysis is carried out. Infor-mation about the presence of Russian devices of this class in the State Register of measuring in-struments is given. The key technical characteristics of the "Ermak" recorder and confirming the results of laboratory and field experiments are given. At the same time, special attention is paid to the correspondence of the amplitude-frequency characteristics of the recorder to the reference analogs. A brief description of the flexible power management system for the recorder modules, which is designed to reduce power consumption, is given. The minimum value of the power con-sumption is about 300 mW when recording through six channels, which makes it possible to ef-fectively use the device for long-term measurements using autonomous power supplies. The in-ternal clock of the recorder is synchronized using GPS/GLONASS systems (hundreds of nano-seconds) and NTP-services (tens of microseconds). The efficiency of operation is ensured by the presence of a LCD-screen at the logger, on which, in addition to time and parametric information, waveforms are displayed in various display modes. There is also a list of facilities where "Ermak" was tested or is currently being operated.

scholarly journals Management and modification procedures for long-term field experiments

1996 ◽  
Vol 76 (4) ◽  
pp. 587-594 ◽  
Author(s):  
P. R. Poulton
Keyword(s):  
Global Change ◽  
Land Management ◽  
Field Experiments ◽  
Environmental Issues ◽  
Published Data ◽  
Policy Makers ◽  
Modern Agriculture ◽  
Long Term Experiments ◽  
Term Field

Long-term experiments like those at Rothamsted in southeast England offer the best practical means of studying the effects of land management or global change on soil fertility, sustainability of yield or wider environmental issues. For the data from such experiments to be of use, farmers, scientists and policy makers must be certain of their validity. This is best assured by the rigorous management of the experiment, by ensuring that any changes are carefully considered and that all operations are well-documented. A steady flow of well-interpreted, published data is also essential. This paper gives examples of how the long-term field experiments at Rothamsted have been managed and how modifications have been made to ensure their relevance to modern agriculture. Key words: Rothamsted, sustainability, long-term experiments, global change

scholarly journals A Comparative Analysis of Coordination, Participation, and Training in Post-Disaster Shelter Projects

2018 ◽  
Vol 10 (11) ◽  
pp. 4241 ◽  
Author(s):  
Aaron Opdyke ◽  
Amy Javernick-Will ◽  
Matthew Koschmann
Keyword(s):  
Comparative Analysis ◽  
Fuzzy Set ◽  
Qualitative Comparative Analysis ◽  
The Philippines ◽  
Infrastructure Systems ◽  
Recovery Processes ◽  
Developing Communities ◽  
Post Disaster ◽  
And Training

The delivery of post-disaster shelter assistance continues to be fraught with challenges derived from the coordination of resources, involvement of project stakeholders, and training of households and builders. There is a need to better understand what project elements in the delivery of post-disaster shelter projects most influence resilience and sustainability. To address this need, we examined nineteen post-disaster shelter projects in the Philippines following Typhoon Haiyan. We first characterized coordination, participation, and training employed across the planning, design, and construction phases of shelter projects and then used fuzzy-set qualitative comparative analysis (fsQCA) to assess the influence of these elements, alone and in combination, on building resilient and sustainable community infrastructure systems. Findings show that early involvement of households in planning efforts, combined with subsequent training, was important in evolving recovery outcomes. Our results point to the importance of: (1) supporting household sheltering processes over delivering hard products; (2) strategically linking project processes across phases; and (3) aligning humanitarian actions with long-term development. Conclusions from this study contribute to theory of sheltering in developing communities and more broadly to theory of recovery processes that link to community resilience and sustainability.

scholarly journals TAKING A SNAPSHOT: Discovering Escalation Prone Countries Through Structural Conditions and QCA

2020 ◽  
Vol 20 (2) ◽  
pp. 5-18
Author(s):  
Kateřina Fridrichová ◽  
◽  
Adriana Ilavská ◽  
Keyword(s):  
Comparative Analysis ◽  
Qualitative Comparative Analysis ◽  
Conflict Escalation

This paper introduces a method of conflict escalation prediction based on long-term structural conditions, drawn from open sources, and QCA (Qualitative Comparative analysis). The combination of the two components offers a model of prediction, which is comparable to other more sophisticated and resourced systems. Moreover, it offers a more sensitive estimation of an escalation.

scholarly journals Long-term Resilient Labour Strategies to Deal with the Economic Crisis in Europe Using Qualitative Comparative Analysis (QCA)

2021 ◽  
Vol 10 (3) ◽  
pp. 9-23
Author(s):  
Sandra Martínez-Molina ◽  
Paula Sabater Pavía ◽  
Jorge Garcés Ferrer
Keyword(s):  
Comparative Analysis ◽  
Labour Market ◽  
Economic Crisis ◽  
Economic Activity ◽  
Negative Impact ◽  
Qualitative Comparative Analysis ◽  
Temporary Employment ◽  
Labour Markets ◽  
European Economies

The crisis has had a negative impact on both European economies and labour markets with different effects among countries, raising the importance of analysing the labour market resilience. This paper seeks to identify which strategies and labour adjustments have led European labour markets to both resilient and non-resilient results by using Qualitative Comparative Analysis (QCA). The findings show two different configurations explaining 57% of the resilient cases and four configurations explaining 74% of the non-resilient cases. The results of this study revealed three important issues. First of all, the same strategy was found to have different results on labour markets. This fact stressed that the context in which different measures are imposed is a decisive factor in their success. Secondly, resilient strategies underlined the importance of “flexibility”, by increasing temporary employment together with other conditions to escape from the crisis. Finally, the non-resilient results stress the importance of the imbalance between the flexicurity dimensions and the effect of the fall in economic activity on not being resilient in the long-term.

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