Evaluation of GBT-FPGA for timing and fast control in CBM experiment

Timing and Fast Control (TFC) system for the Compressed Baryonic Matter (CBM) experiment is being developed with focus on low and deterministic data transmission latency. This helps to minimize data corruption in the free-streaming Data Acquisition (DAQ) system during occasional data bursts caused by the expected beam intensity fluctuations. Proven in latency-optimized experimental data transport applications, the GBT-FPGA core is expected to positively contribute to the TFC system performance. In this work, the core has been integrated as the primary communication interface and its effect on transmission latency and quality of time distribution has been evaluated

Prototype design of a timing and fast control system in the CBM experiment

The Compressed Baryonic Matter (CBM) experiment is designed to handle interaction rates of up to 10 MHz and up to 1 TB/s of raw data generated. With triggerless streaming data acquisition in the experiment and beam intensity fluctuations, it is expected that occasional data bursts will surpass bandwidth capabilities of the Data Acquisition System (DAQ) system. In order to preserve integrity of event data, the bandwidth of DAQ must be throttled in an organised way with minimum information loss. The Timing and Fast Control (TFC) system provides a latency-optimised datapath for throttling commands and distributes a system clock together with a global timestamp. This paper describes a prototype design of the system with focus on synchronisation and its evaluation

Prototype design of a timing and fast control system in the CBM experiment

The Compressed Baryonic Matter (CBM) experiment is designed to handle interaction rates of up to 10 MHz and up to 1 TB/s of raw data generated. With triggerless streaming data acquisition in the experiment and beam intensity fluctuations, it is expected that occasional data bursts will surpass bandwidth capabilities of the Data Acquisition System (DAQ) system. In order to preserve integrity of event data, the bandwidth of DAQ must be throttled in an organised way with minimum information loss. The Timing and Fast Control (TFC) system provides a latency-optimised datapath for throttling commands and distributes a system clock together with a global timestamp. This paper describes a prototype design of the system with focus on synchronisation and its evaluation

Влияние пыли перегружаемых в портах опасных навалочных грузов на санитарно-экологическое состояния почв припортовых городов причерноморья = Influence of dust transferred into ports of dangerous cargos for bulk sanitary-ecological condition of soils port urban Black Sea

Belobrov E. P., Zambriborshch M. S., Sidorenko S. G., Zukow W. Влияние пыли перегружаемых в портах опасных навалочных грузов на санитарно-экологическое состояния почв припортовых городов причерноморья = Influence of dust transferred into ports of dangerous cargos for bulk sanitary-ecological condition of soils port urban Black Sea. Journal of Education, Health and Sport. 2015;5(7):604-619. ISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.62038http://ojs.ukw.edu.pl/index.php/johs/article/view/3847  Deklaracja.Specyfika i zawartość merytoryczna czasopisma nie ulega zmianie.Zgodnie z informacją MNiSW z dnia 2 czerwca 2014 r., że w roku 2014 nie będzie przeprowadzana ocena czasopism naukowych; czasopismo o zmienionym tytule otrzymuje tyle samo punktów co na wykazie czasopism naukowych z dnia 31 grudnia 2014 r.The journal has had 5 points in Ministry of Science and Higher Education of Poland parametric evaluation. Part B item 1089. (31.12.2014).© The Author (s) 2015;This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, Poland and Radom University in Radom, PolandOpen Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited.This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercialuse, distribution and reproduction in any medium, provided the work is properly cited.The authors declare that there is no conflict of interests regarding the publication of this paper.Received: 20.06.2015. Revised 15.07.2015. Accepted: 25.07.2015.  Влияние пыли перегружаемых в портах опасных навалочных грузов на санитарно-экологическое состояния почв припортовых городов Причерноморья Е. П. Белобров, М. С. Замбриборщ, *С. Г. Сидоренко, **В. А. Жуков Украинский НИИ медицины транспорта Минздрава Украины, Одесса*Главное управление Госсанэпидслужбы в Кировоградской области,Кировоград**UKW, Bydgoszcz, Poland РефератПочва является одним из основных концентраторов химических загрязняющих веществ, включая тяжелые металлы, которые при избыточном содержании проявляют свои токсические свойства. Они являются генетическими ядами, поскольку, попадая в организм, аккумулируются с отдаленным эффектом действия. Одним из наиболее токсичных металлов является свинец, данный элемент относится к первому классу опасности.Авторы провели санитарно-экологическую оценку состояния почв прибрежно-береговых территорий в условиях воздействия пыли навалочных грузов, перегружаемых в морских портах Одесского региона – Ильичевска, Одессы, Южного.Пыль различных грузов представляет потенциальную опасность, которую необходимо учитывать при проведении перегрузочных работ. Кроме того, разница в агрегатном состоянии дисперсных частиц, влажности и других физико-химических характеристик имеют не только технологическое, но и эколого-геохимическое значение для почв. Так как большинство вредных примесей и компонентов находятся в аэрозольной фазе, для предупреждения пылеобразования следует учитывать  процентное содержание пылевой фракции в грузах.Изучение почв и их химического состава в районах активных перевалочно-насыпных работ на территории, прилегающей к портам городов Одессы, Южного и Ильичевска, показало, что происходит аккумулирование тяжелых металлов и других загрязняющих элементов и веществ в верхних слоях почвы, что ведет к повышению экологической нагрузки на почву.Ключевые слова: почва, припортовые территории, тяжелые металлы, опасные грузы INFLUENCE OF DUST transferred into PORTS OF DANGEROUS cargoS FOR BULK sanitary-ecological condition of soils Port URBAN BLACK SEA E. P. Belobrov, M. S. Zambriborshch, *S. G. Sidorenko, **W. Zukow Ukrainian Scientific Research Institute of Transport Medicine of Ministry of Health of Ukraine, Odessa*General Directorate GosSanEpidemNadzor in Kirovograd region,Kirovograd**KWU, Bydgoszcz, Poland AbstractSoil is one of the main hubs of chemical contaminants, including heavy metals, which when excessive content exert their toxic properties. They are genetic poisons, because getting into the body, with accumulated long-term effects of action. One of the toxic metal is lead, the element belongs to the first class of hazard.The authors conducted a sanitary and environmental assessment of soil-shore coastal areas under the impact of dust bulk cargo transhipped at sea ports ofOdessaregion - Ilyichevsk,Odessa, Southern.Dust various cargoes is a potential danger that must be taken into account during the transfer operations. In addition, the difference in the state of aggregation of dispersed particles, humidity and other physical and chemical characteristics are not only technological, but also ecological and geochemical significance for soil. Since most of the impurities and harmful components are in phase, aerosol, to prevent dust formation should be considered dust fraction percentage in loads.The study of soils and their chemical composition in areas of active transshipment and bulk of work on the territory adjacent to the port city of Odessa, the Southern and Ilyichevsk, has shown that there is accumulation of heavy metals and other polluting elements and substances in the upper layers of the soil, which leads to an increase in the environmental load soil.Keywords: soil, territory near ports, heavy metals, dangerous cargo

Generalized Darboux transformations for the KP equation with self-consistent sources

The KP equation with self-consistent sources (KPESCS) is treated in the framework of the constrained KP equation. This offers a natural way to obtain the Lax representation for the KPESCS. Based on the conjugate Lax pairs, we construct the generalized binary Darboux transformation with arbitrary functions in time $t$ for the KPESCS which, in contrast with the binary Darboux transformation of the KP equation, provides a non-auto-B\"{a}cklund transformation between two KPESCSs with different degrees. The formula for N-times repeated generalized binary Darboux transformation is proposed and enables us to find the N-soliton solution and lump solution as well as some other solutions of the KPESCS.Comment: 20 pages, no figure

Magnetic Impurities in the Pnictide Superconductor Ba1−x_{1-x}Kx_{x}Fe2_{2}As2_{2}

NMR measurements have been performed on single crystals of Ba$_{1-x}$K$_{x}$Fe$_2$As$_2$ (x = 0, 0.45) and CaFe$_2$As$_2$ grown from Sn flux. The Ba-based pnictide crystals contain significant amounts of Sn in their structure, $\sim 1$%, giving rise to magnetic impurity effects evident in the NMR spectrum and in the magnetization. Our experiments show that the large impurity magnetization is broadly distributed on a microscopic scale, generating substantial magnetic field gradients. There is a concomitant 20% reduction in the transition temperature which is most likely due to magnetic electron scattering. We suggest that the relative robustness of superconductivity ($x=0.45$) in the presence of severe magnetic inhomogeneity might be accounted for by strong spatial correlations between impurities on the coherence length scale.Comment: 14 pages, 6 figures (submitted to New Journal of Physics

The history of degenerate (bipartite) extremal graph problems

This paper is a survey on Extremal Graph Theory, primarily focusing on the case when one of the excluded graphs is bipartite. On one hand we give an introduction to this field and also describe many important results, methods, problems, and constructions.Comment: 97 pages, 11 figures, many problems. This is the preliminary version of our survey presented in Erdos 100. In this version 2 only a citation was complete

MultiLexNorm: A Shared Task on Multilingual Lexical Normalization

Lexical normalization is the task of transforming an utterance into its standardized form. This task is beneficial for downstream analysis, as it provides a way to harmonize (often spontaneous) linguistic variation. Such variation is typical for social media on which information is shared in a multitude of ways, including diverse languages and code-switching. Since the seminal work of Han and Baldwin (2011) a decade ago, lexical normalization has attracted attention in English and multiple other languages. However, there exists a lack of a common benchmark for comparison of systems across languages with a homogeneous data and evaluation setup. The MULTILEXNORM shared task sets out to fill this gap. We provide the largest publicly available multilingual lexical normalization benchmark including 12 language variants. We propose a homogenized evaluation setup with both intrinsic and extrinsic evaluation. As extrinsic evaluation, we use dependency parsing and part-of-speech tagging with adapted evaluation metrics (a-LAS, a-UAS, and a-POS) to account for alignment discrepancies. The shared task hosted at W-NUT 2021 attracted 9 participants and 18 submissions. The results show that neural normalization systems outperform the previous state-of-the-art system by a large margin. Downstream parsing and part-of-speech tagging performance is positively affected but to varying degrees, with improvements of up to 1.72 a-LAS, 0.85 a-UAS, and 1.54 a-POS for the winning system