scholarly journals COMPARATIVE ANALYSIS OF SOFTWARES FOR ASSESSMENT AND PREDICTION OF RADIATION SITUATION INDICATORS

Author(s):  
Yulianna E. Kruk ◽  
◽  
Andrey L. Mostovenko ◽  
Ekaterina C. Nilova ◽  
Viktor A. Kuzminchuk ◽  
...  

This article presents the results of comparative analysis of software tools for assessing and predicting parameters characterizing the radiation situation in the event of a hypothetical emergency at nuclear facilities. To analyze the output parameters and rank the software according to the degree of conservatism, an emergency scenario at the AES-2006 design facility was selected. This scenario is associated with a decrease in the coolant temperature and, as a consequence, a change in reactivity. The results of ranking software tools for use in the activities of the Information and Analytical Center of the Department of Nuclear and Radiation Safety are presented. It has been established that the highest degree of conservatism is embedded in the operational assessment codes (HotSpot and RECASS Express). These tools make it possible to provide quick simplified calculations for the early stage of an accident at a Nuclear Facility and can be recommended for use in assessing and predicting the radiation situation as the first tools. In this case, the status of the assessment of the radiation situation is recommended to be considered preliminary, additional to the main calculations performed, for example, with the JRODOS and RECASS NT design codes, the technical capabilities of which allow assessing the radiation impact, including at significant distances from the source, as in the case of emergency situations, and within the framework of the command and staff exercises.

2018 ◽  
Author(s):  
Михаил Геннадьевич Чепрасов ◽  
Карина Аскаровна Агадилова ◽  
Игорь Олегович Мячин

В данной статье рассматриваются особенности становления российских стартап-компаний, ключевые проблемы развития и пути их решения. Проведен сравнительный анализ отечественных и зарубежных стартапов, где инновационные компании стали опорой экономики. Проанализирована статистика по состоянию стартапов России в настоящее время. Авторами отмечены главные предпосылки, которые ведут стартапы к провалу. Особое внимание уделено современным возможностям их финансирования. В статье описаны такие технологии финансирования как венчурное инвестирование, спонсирование бизнес-ангелами, государственная поддержка инновационных компаний, многоаспектная помощь бизнес-инкубаторов. Учтены преимущества и пробелы каждой из приведенных форм. This article discusses the features of the formation of Russian start-up companies, key development problems and ways to solve them. A comparative analysis of domestic and foreign startups, where innovative companies have become the backbone of the economy. Analyzed statistics on the status of startups in Russia at the present time. The authors noted the main prerequisites that lead startups to failure. Particular attention is paid to the modern possibilities of their financing. The authors described such financing technologies as venture investment, sponsorship by business angels, government support for innovative companies, multidimensional assistance from business incubators. Take into account the advantages and gaps of each of these forms.


2017 ◽  
Vol 13 (3) ◽  
pp. 68-78
Author(s):  
A. A. Pavlov ◽  
I. O. Datyev ◽  
M. G. Shishaev

Simulation is the main way for testing technologies in the field of multi-hop wireless networks (MWN). Creating a simulation model MWN - a time-consuming task associated with the use of specialized software tools, called network simulators. In this paper, the modern experience of modeling MWN and the main problems are formulated. One of the main problem is the comparative analysis' impossibility of the experiments results conducted by various researchers. This is due to the reasons associated with the models used for testing, the planning an imitation experiment and the principal differences in the network simulators. To solve this problem, authors propose a generalized conceptual model of MWN simulation and a specialized software package that automates the execution of experiment series in a heterogeneous modeling environment.


2020 ◽  
Vol 21 (10) ◽  
pp. 751-767
Author(s):  
Pobitra Borah ◽  
Sangeeta Hazarika ◽  
Satyendra Deka ◽  
Katharigatta N. Venugopala ◽  
Anroop B. Nair ◽  
...  

The successful conversion of natural products (NPs) into lead compounds and novel pharmacophores has emboldened the researchers to harness the drug discovery process with a lot more enthusiasm. However, forfeit of bioactive NPs resulting from an overabundance of metabolites and their wide dynamic range have created the bottleneck in NP researches. Similarly, the existence of multidimensional challenges, including the evaluation of pharmacokinetics, pharmacodynamics, and safety parameters, has been a concerning issue. Advancement of technology has brought the evolution of traditional natural product researches into the computer-based assessment exhibiting pretentious remarks about their efficiency in drug discovery. The early attention to the quality of the NPs may reduce the attrition rate of drug candidates by parallel assessment of ADMET profiling. This article reviews the status, challenges, opportunities, and integration of advanced technologies in natural product research. Indeed, emphasis will be laid on the current and futuristic direction towards the application of newer technologies in early-stage ADMET profiling of bioactive moieties from the natural sources. It can be expected that combinatorial approaches in ADMET profiling will fortify the natural product-based drug discovery in the near future.


Author(s):  
Tino Walther ◽  
Marianne Pieper ◽  
Hans-Joachim Bargstädt

<p>The construction industry is essentially determined by digital transformation and an increasingly complex market environment. Project controlling and monitoring is of high importance for construction site activities to achieve the project goals. Digital planning and recording methods make it possible to identify deviations at an early stage and to ensure the profitability of the project. To discuss the current practice of construction performance measurement as well as digital approaches in this domain, a qualitative study was carried out. The results of this empirical analysis examine the status quo of the construction performance measurement in civil engineering companies to illustrate the currently used methods and trends. Findings for the future use of digital planning and recording methods were obtained from the investigation. Based on empirical hypotheses, recommendations for action as well as for an improved process model are given.</p>


2018 ◽  
Vol 50 ◽  
pp. 01159
Author(s):  
Anton Shamne

The article compares the Criminal Procedural Codes provisions of the Russian Federation and the Federal Republic of Germany that regulate conducting a search as an investigative act. It also provides and compares the definitions of the concept “search” and “dwelling” given in Russian and German criminal procedural legislation. The reasons for conducting the search in general and the search of dwelling are considered, similarities and differences are revealed in relation to the status of the subject who is under the search. The author characterizes the search of dwelling and gives a comparative analysis of this investigative action as well as the notion of “urgent cases” in both countries. The authors also proposed some brief recommendations for improving the norms of the Russian Federation Criminal Procedure Code.


2021 ◽  
Author(s):  
Shumpei Hisamoto ◽  
Koichi Goka ◽  
Yoshiko Sakamoto

Abstract Efforts to eradicate invasive alien species commonly use simulations to calculate the cost-effectiveness of surveys. Although eradication of Solenopsis invicta in the early stages of an invasion is important, few simulations are available to calculate the cost-effectiveness of surveys when a single colony has been detected. In the case of S. invicta, it is difficult to determine from the status of the detected colony whether new queens have dispersed, so it is necessary to consider dispersal as a probabilistic event and calculate its probability. We therefore first constructed a mathematical model in which we used Bayesian statistics to estimate the probability of dispersal as a function of the results of the survey. This mathematical model revealed that the efficacy of the survey and the associated cost differed greatly between cases depending on whether dispersal was or was not confirmed. Next, we developed a simulation that incorporated this mathematical model to inform the determination of the survey area when a single colony had been detected. The simulation showed how ecological parameters and geographical information could be used to identify an efficacious survey area, even in heterogeneous landscapes such as international ports where invasions occur sporadically. Finally, we used this simulation to assess the efficacy of a survey in the case of an S. invicta outbreak at the Port of Tokyo, Japan. The results suggested that the survey covered a sufficiently wide area but that it could have been designed in a more efficacious manner.


Author(s):  
T.V. Rastimehina ◽  

The author examines the actions of states in crisis and emergency situations and conducts a comparative analysis of the emergency measures taken by the governments of democratic states and hybrid regime states. The author notes the Matthew effect: the actions of the institutions of political power of democratic and undemocratic countries in the conditions of the regime of increased readiness at a superficial examination seem similar, but have a different effect. In democracies, the restriction of some of the freedoms of citizens fits into the general trend toward humanization of politics. At the same time, autocracies presumably use the crisis to redistribute power resources toward the executive branch and to normalize the suppression of civic engagement.


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