New prototype of 6-component seismograph Rotaphone CY: laboratory testing and pilot measurements

2020 ◽  
Author(s):  
Jiri Vackar ◽  
Jiri Malek ◽  
Johana Brokesova
Keyword(s):  
Nuclear Power ◽  
Ground Motions ◽  
Field Measurements ◽  
Local Network ◽  
Small Aperture ◽  
The Czech Republic ◽  
Rigid Frame ◽  
Rotational Components ◽  
Hazard Estimate ◽  
The Individual

<p><span>Rotaphones are seismic sensor systems consisting of parallel pairs of geophones attached to a rigid frame anchored to ground. Such an arrangement allows to measure both translational and rotational ground motions. Translations are measured by individual geophones while rotations are determined using differential records from the paired geophones. The individual geophones are calibrated simultaneously with each measurement utilizing overdetermined rotational components. A new prototype, Rotaphone CY has been recently developed. The design has been improved taking into account experience with field measurements performed using older prototypes. The device is optimized for recording weak ground motions from local microearthquakes, both natural or induced, in a high-frequency range. The instruments were carefully tested in laboratory conditions. Tests were followed by pilot field deployments in various places in the Czech Republic. A local network of six Rotaphones CY has been deployed in the scope of Litomerice geothermal project to investigate induced seismicity related to the production of geothermal energy. The instrument has also been recently deployed at the nuclear power plant Dukovany to monitor local seismicity with the aim to improve seismic hazard estimate. A small-aperture array of four these instruments was installed at the Geophysical Observatory Fürstenfeldbruck, Germany, in the frame of a comparative rotation sensors experiment. Examples of 6-component records from these pilot measurements are shown.</span></p>

scholarly journals An Approach for Assessing Structural Uplifting Using Blast Motions

2008 ◽  
Author(s):  
Jinsuo Nie ◽  
Jim Xu ◽  
Charles H. Hofmayer ◽  
Syed A. Ali
Keyword(s):  
Coal Mine ◽  
Nuclear Power ◽  
Large Scale ◽  
Ground Motions ◽  
National Laboratory ◽  
Field Tests ◽  
Field Measurements ◽  
Nuclear Regulatory Commission ◽  
Brookhaven National Laboratory ◽  
Ground Acceleration

When a nuclear power plant (NPP) structure is subjected to beyond-design-basis seismic motions, a localized nonlinear effect on the soil-structure system is attributed to separations between the structure and the surrounding soils such as basemat uplift. Experiments involving field tests for real seismic events are usually difficult because of the low probability for large earthquakes at any particular site. To this end, the magnitudes of blast-induced ground motions at a coal mine have been found to be predicatable and can reach very large values. An approach has been developed to investigate whether the strong ground motions recorded at this coal mine can be used to evaluate the basemat uplift effect. This approach involves the use of a scaled ground motion to establish the relationship between the basemat uplift and the peak ground acceleration (PGA). This paper summarizes the field measurements for the ground motions at a coal mine by the Japan Nuclear Safety Organization (JNES) and a method using large scale finite element analyses for basemat uplift assessment performed by Brookhaven National Laboratory for the US Nuclear Regulatory Commission.

scholarly journals Does SUSY have friends? A new approach for LHC event analysis

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
Anna Mullin ◽  
Stuart Nicholls ◽  
Holly Pacey ◽  
Michael Parker ◽  
Martin White ◽  
...  
Keyword(s):  
Hadron Collider ◽  
Local Network ◽  
Proton Collision ◽  
Event Analysis ◽  
Final State ◽  
Proton Proton ◽  
Kinematic Space ◽  
Boosted Decision Tree ◽  
The Individual ◽  
Particle Search

Abstract We present a novel technique for the analysis of proton-proton collision events from the ATLAS and CMS experiments at the Large Hadron Collider. For a given final state and choice of kinematic variables, we build a graph network in which the individual events appear as weighted nodes, with edges between events defined by their distance in kinematic space. We then show that it is possible to calculate local metrics of the network that serve as event-by-event variables for separating signal and background processes, and we evaluate these for a number of different networks that are derived from different distance metrics. Using a supersymmetric electroweakino and stop production as examples, we construct prototype analyses that take account of the fact that the number of simulated Monte Carlo events used in an LHC analysis may differ from the number of events expected in the LHC dataset, allowing an accurate background estimate for a particle search at the LHC to be derived. For the electroweakino example, we show that the use of network variables outperforms both cut-and-count analyses that use the original variables and a boosted decision tree trained on the original variables. The stop example, deliberately chosen to be difficult to exclude due its kinematic similarity with the top background, demonstrates that network variables are not automatically sensitive to BSM physics. Nevertheless, we identify local network metrics that show promise if their robustness under certain assumptions of node-weighted networks can be confirmed.

scholarly journals Incidence of Characteristic Findings during Veterinary Carcass Inspections 2010–2019 in the Czech Republic and the Relation to the Level of Health and Welfare of Individual Classes of Cattle

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 537
Author(s):  
Michal Kaluza ◽  
Vladimir Vecerek ◽  
Eva Voslarova ◽  
Zbynek Semerad ◽  
Annamaria Passantino
Keyword(s):  
Czech Republic ◽  
Health Issues ◽  
Pathological Findings ◽  
Pathological Changes ◽  
Great Intensity ◽  
The Czech Republic ◽  
Stunted Growth ◽  
Liver And Pancreas ◽  
Systemic Disorder ◽  
The Individual

Pathological findings in individual classes of cattle were assessed from the viewpoint of their localization and category. The objective of the study was to evaluate whether there are differences in the range and number of findings made between the individual classes of cattle. The results of veterinary inspections on 2,514,666 head of cattle slaughtered in the Czech Republic in the period 2010–2019 were used for the assessment. In terms of localization, the most frequent findings in cows were in the liver and pancreas (46.13%), the urinary tract (40.76%) and the lungs (36.23%). These findings also predominated in heifers and bulls, though they were recorded at lower frequencies (p < 0.01) than in cows. The most frequent pathological changes in heifers and bulls were chronic findings in the lungs (16.09% and 12.27%, respectively). The range of findings in calves differed significantly from other classes of cattle, primarily as the result of respiratory and diarrheal syndrome being the most frequent diseases in calves. Calves were the class of cattle most frequently diagnosed with findings in the lungs (44.89%), as well as other unclassified changes (24.43%) and overall changes (21.55%), which point to a systemic disorder of the organism. The results of this study confirmed the differing states of health in the individual classes of cattle and the differing health issues to which treatment and the prevention of the most frequently occurring infectious and non-infectious diseases must be adapted. Cattle welfare is affected not only by the level of health but also by the herd management and economics. This is confirmed by the range of findings, and the deterioration of living conditions especially in cows, likely because of great intensity of farming, but also in calves which suffered from emaciation or stunted growth.

A New Method of Field Measurements for Small-Aperture Magnets

1991 ◽  
Vol 30 (Part 1, No. 9A) ◽  
pp. 2082-2084
Author(s):  
Mitsuo Kikuchi ◽  
Hisayoshi Nakayama
Keyword(s):  
Field Measurements ◽  
New Method ◽  
Small Aperture

scholarly journals Assessment of the Readiness and Resilience of Czech Society against Water-Related Crises

Hydrology ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 14
Author(s):  
Štěpán Kavan ◽  
Šárka Kročová ◽  
Jiří Pokorný
Keyword(s):  
Czech Republic ◽  
Swot Analysis ◽  
Multicriteria Analysis ◽  
Interdisciplinary Approach ◽  
Comparison Method ◽  
Internal Environment ◽  
The Czech Republic ◽  
Triangle Method ◽  
Czech Society ◽  
The Individual

This assessment of societal readiness and resilience to water-related situations in the Czech Republic focuses on an interdisciplinary approach in the Czech Republic for solving this problem. The goal of the article is to evaluate and characterize the preparedness for handling water-related crises. The analysis is carried out via a SWOT analysis, which is a universal analytical method used to understand and interpret strengths and weaknesses and to identify opportunities and threats. For the calculation of the weight factor of the SWOT analysis, an assessment was determined based on the multicriteria analysis. The pair comparison method was used to determine the relative importance of the parameters of the strengths and weaknesses, opportunities and threats. The Fuller Triangle method was chosen for the system used to make the comparisons of the individual criteria. The uniqueness of the study consists of the issue of water management, which is thus reflected from a non-traditional perspective, being a contemporary model—the paradigm of the view on the preparedness of the planning documentation as one of the characteristics of societal resilience for water-related crises. The result of the research is the fact that a positive approach prevails in the researched area from the perspective of preparedness for water-related crises. For the creation of the conditions, the factors arising from the internal environment currently prevail slightly over those arising from the external environment.

scholarly journals What happens when the nuclear power plant goes? Social and economic consequences of dismantling for the site and its population

2021 ◽  
Vol 1 ◽  
pp. 265-266
Author(s):  
Caroline Kramer
Keyword(s):  
Nuclear Power ◽  
Best Practice ◽  
Operating Time ◽  
Rapid Change ◽  
Intention To Leave ◽  
Economic Consequences ◽  
Power Station ◽  
Individual Level ◽  
Social Scientific ◽  
The Individual

Abstract. This project deals with the question of what the overall social and economic consequences of dismantling a nuclear power station are for the population and the site. Various disciplines and specialist fields are concerned with questions that touch on the topic of dismantling nuclear technical facilities; however, there are so far no research projects that examined these processes from social scientific, geographic and engineering scientific perspectives. This article concentrates predominantly on the former perspective of the dismantling. Within the framework of this project the affected population and experts from the communities were asked how they deal with the dismantling of the nuclear power stations, which were triggered by the rapid change in energy policy following the accident in Fukushima in 2011. It became clear that there were various strategies for dealing with this process depending on the location. This was the reason to follow up the question of coping with this process at different locations. It could be shown, for example, that the consequences of this event were essentially determined by how the community was already positioned beforehand, e.g. whether the economic situation was a monostructure or whether long-term considerations about the future had already been made during the operating time of the power station. At the individual level, the “prerequisites” in the sense of individual value orientation and the spatially related identity, were also essentially responsible for how the risks of the dismantling and the further development of the community were perceived and evaluated. Furthermore, it was compiled from where the people extracted their information, which sources had a high or low credibility, which worries they have with respect to the near future and whether they have the intention to leave the community. In this project it became clear that there were examples of best practice with respect to dealing with this rapid and fundamental change at the locations.

scholarly journals The analysis of individual Visegrad group members’ agrarian export sensitivity in relation to selected macroeconomic aggregations

2011 ◽  
Vol 59 (4) ◽  
pp. 327-342
Author(s):  
Miroslav Svatoš ◽  
Luboš Smutka
Keyword(s):  
Agricultural Trade ◽  
Added Value ◽  
The Czech Republic ◽  
Grocery Industry ◽  
Agricultural Exports ◽  
Group Members ◽  
The Subject ◽  
The Individual ◽  
High Degree ◽  
Visegrad Group

This paper analyzes the development of agricultural trade of the countries of the Visegrad Group with emphasis on development of the value of agricultural exports of the individual countries. The subject matter of the analysis is the sensitivity of the commodity structure of agricultural exports of individual countries and the identification of aggregations that are the least and the most sensitive to changes to the external and internal economic environment. From the conducted research, agricultural trade in the V4 countries was found to have developed very dynamically from 1993 to 2008, while the commodity structure of exports has constantly narrowed as the degree of specialization of the individual countries has increased (this applies especially to the Czech Republic, Slovakia and Hungary). From the results of analysis of sensitivity to changes of selected variables relating to the development of the value of agricultural exports of the individual V4 countries, it appears that the aggregations that react most sensitively to changes are those that are the subject of re-exports, followed by the aggregations that are characterized by a high degree of added value. In general it can be said that products of agricultural primary production exhibit less sensitivity in comparison with grocery industry products. This is confirmed by the general trend arising from the very nature of consumer behaviour.

scholarly journals Assessment of Impact of Capital Acquisitions on the Economic Situation of Consolidated Entities in the Czech Republic

2019 ◽  
Vol 67 (5) ◽  
pp. 1335-1345
Author(s):  
Jaroslava Rajchlová ◽  
Anna Fedorová ◽  
Kristina Somerlíková ◽  
Libor Grega
Keyword(s):  
Czech Republic ◽  
Synergistic Effects ◽  
Business Environment ◽  
Fundamental Aspect ◽  
Consolidated Financial Statements ◽  
The Czech Republic ◽  
Individual Assessment ◽  
Research Level ◽  
The Individual ◽  
Parent Companies

Business acquisition constitutes a fundamental aspect of business environment formation. Our research has focused on assessment of impact of capital acquisition on the economic condition of the company. Therefore, the second research level has been initiated, focusing on the individual assessment of the single companies to identify allocation of synergy between consolidated units and parent companies in the Czech Republic. For our research, taking into consideration availability of data and subsequent explanatory value of the results, we will consider synergistic effect as presented in the Ansoff’s concept. Consolidated financial statements of totally 719 groups of accounting entities – business concerns in the Czech Republic has been studied in the research. A composite indicator, as the modern tool for comparison and evaluation of development of entities, has been selected to compare individual economic indicators of parent companies and group of their companies. We believe that developed arguments allow us to formulate conclusion that capital acquisitions, resulting in the years 2008–2013 in the obligation to compile consolidated financial statement, have brought positive financial synergistic effects in majority of cases, and we can rank them among successful business activities.

scholarly journals THE ECO-SOCIO-ECONOMIC LEVEL OF DEVELOPMENT OF WORLD COUNTRIES – A COMPREHENSIVE ASSESSMENT PROPOSAL

2020 ◽  
Vol XXII (3) ◽  
pp. 86-96
Author(s):  
Arkadiusz Gromada ◽  
Marcin Wysokiński ◽  
Magdalena Golonko ◽  
Paulina Trębska
Keyword(s):  
Economic Development ◽  
The United States ◽  
South American ◽  
The Czech Republic ◽  
Happy Life ◽  
The United Kingdom ◽  
Social And Economic Development ◽  
Socio Economic Development ◽  
South Eastern Europe ◽  
The Individual

The main purpose of the article was to assess the eco-socio-economic development of world countries. For this purpose, the Comprehensive Eco-Socio-Economic Development Index (CESEDI) was proposed and used. The proposed measure is based on a dozen or so indicators recognized and used in the literature for assessing countries in terms of their social, economic and environmental achievements. An attempt was made to include most of the elements necessary for the safe, healthy and happy life of citizens of the studied countries. The article presents world leaders, based on the CESEDI. Moreover, the individual components of the CESEDI and their level in the analyzed countries are presented. It was found, inter alia, that 18 out of 20 countries with the highest CESEDI are European countries. The ranking leaders were highly developed Scandinavian countries (Norway, Denmark, Finland) and Switzerland. The countries of Eastern and South-Eastern Europe (Slovenia, Slovakia, the Czech Republic, Poland and Romania) took high positions in the ranking, ahead of such countries as Canada, the United Kingdom, Japan and the United States. Research results indicate that European and South American countries are, on average, more developed in terms of ecological, social and economic development than countries in the rest of the world.

Sign in / Sign up

Export Citation Format

Share Document