cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
TDIOT: Target-driven Inference for Deep Video Object Tracking
Creators: name: Gurkan, Filiz
name: Cerkezi, Llukman
name: Cirakman, Ozgun
name: Gunsel, Bilge
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Recent tracking-by-detection approaches use deep object detectors as target detection baseline, because of their high performance on still images. For effective video object tracking, object detection is integrated with a data association step performed by either a custom design inference architecture or an end-to-end joint training for tracking purpose. In this work, we adopt the former approach and use the pre-trained Mask R-CNN deep object detector as the baseline. We introduce a novel inference architecture placed on top of FPN-ResNet101 backbone of Mask R-CNN to jointly perform detection and tracking, without requiring additional training for tracking purpose. The proposed single object tracker, TDIOT, applies an appearance similarity-based temporal matching for data association. In order to tackle tracking discontinuities, we incorporate a local search and matching module into the inference head layer that exploits SiamFC for short term tracking. Moreover, in order to improve robustness to scale changes, we introduce a scale adaptive region proposal network that enables to search the target at an adaptively enlarged spatial neighborhood specified by the trace of the target. In order to meet long term tracking requirements, a low cost verification layer is incorporated into the inference architecture to monitor presence of the target based on its LBP histogram model. Performance evaluation on videos from VOT2016, VOT2018 and VOT-LT2018 datasets demonstrate that TDIOT achieves higher accuracy compared to the state-of-the-art short-term trackers while it provides comparable performance in long term tracking.
From Enemy to Mascot: The Deculturation of Indian Mascots in Sports Culture
Creators: name: Pewewardy, Cornel
Publisher: name: Canadian Journal of Native Education
Year: 2021

description: This article focuses on two important concepts in the way many Indian mascots are treated in North American sports culture. The first is the deculturation pro­ cess of stripping away the culture of an ethnic group by replacing them with im­ ages of the dominant group. The second concept is that of dysconscious racism—a form of racism that unconsciously accepts dominant white norms and privileges as played out as Indian mascots in North American sports culture. Educators need to be better informed about First Nations Peoples and their communities. Doing so will help them see that as long as such negative mascots and logos re­main in the arena of school activities, both Indigenous and non-Indigenous chil­dren are learning to tolerate racism in schools. What children see displayed at school and on television only reinforces the ethnic images projected by popular culture. This is precisely what sports teams with mascots and logos of First Na­tions Peoples teach them—that it is acceptable racism to demean a race or group of people through North American sports culture. This article challenges educa­ tors to provide the educational leadership that will teach a critical perspective of the deculturation process that takes place when Indian mascots are used in school-related activities.
description: Canadian Journal of Native Education, Vol. 23 No. 2 (1999)
Large bulk photovoltaic effect and second-harmonic generation in few-layer pentagonal semiconductors PdS$_2$ and PdSe$_2$
Creators: name: Gudelli, Vijay Kumar
name: Guo, Guang-Yu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recently, atomically thin PdSe$_2$ semiconductors with rare pentagonal Se-Pd-Se monolayers were synthesized and were also found to possess superior properties such as ultrahigh air stability, and high carrier mobility, thus offering a new family of two-dimensional (2D) materials for exploration of 2D semiconductor physics and for applications in advanced opto-electronic and nonlinear photonic devices. In this work, we systematically study the nonlinear optical (NLO) responses [namely, bulk photovoltaic effect (BPVE), second-harmonic generation (SHG) and linear electric-optic (LEO) effect] of noncentrosymmetric bilayer (BL) and four-layer (FL) PdS$_2$ and PdSe$_2$ by applying the first-principles density functional theory with the generalized gradient approximation plus scissors-correction. First of all, the shift current conductivity is in the order of 130 $μ$A/V$^2$, being very high compared to known BPVE materials. Similarly, their injection current susceptibilities are in the order of 100$\times$10$^8$A/V$^2$s, again being large. Secondly, the SHG coefficients ($χ^{(2)}$) of these materials are also large, being one order higher than that of the best-known few-layer group 6B transition metal dichalcogenides. For example, the maximum magnitude of $χ^{(2)}$ can reach 1.4$\times$10$^3$ pm/V for BL PdSe$_2$ at 1.9 eV and 1.2$\times$10$^3$ pm/V at 3.1 eV for BL PdS$_2$. Thirdly we find significant LEO coefficients for these structures in the low photon energy. All these indicate that 2D PdX$_2$ semiconductors will find promising NLO applications. Fourthly, we find that the large BPVE and SHG of the few-layer PdX$_2$ structures are due to strong intralayer directional covalent bonding and also 2D quantum confinement.
On the theory of resonant susceptibility of dielectric glasses in magnetic field
Creators: name: Sereda, Y.
name: Polishchuk, I. Ya.
name: Burin, A. L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The anomalous magnetic field dependence of dielectric properties of insulating glasses in the temperature interval $10mK
description: 9 Pages, 5 Figures, To be submitted to the Physical Review B, please send comments
title: Modellierung des Circadian Stimulus mit foto- und farbmetrischen Größen sowie Untersuchung des Lichteinflusses auf die Schlafqualität und Schläfrigkeit von Frühschichtarbeitenden
Creators: name: Truong, William Zhang-Wei-Lian
Publisher: name: UNSPECIFIED
Year: 2021

description: Mit der Entdeckung der intrinsisch fotosensitiven retinalen Ganglienzellen konnte 2001 gezeigt werden, dass die fotometrische Größe Beleuchtungsstärke ungeeignet ist, um nicht-visuelle Lichteffekte auf die nächtliche Melatoninunterdrückung, den zirkadianen Rhythmus, die subjektive Wachheit etc. zu beschreiben. Im Zuge dessen wurde u. a. die Größe Circadian Stimulus entwickelt, die die zirkadiane Lichtwirkung im Vergleich zur Beleuchtungsstärke besser beschreibt. Die Anwendung dieser Größe in der Beleuchtungspraxis war jedoch bislang schwierig, da in der Lichtplanung überwiegend foto- und farbmetrische Größen verwendet werden. Die Bestimmung des Circadian Stimulus erfordert allerdings zur Messung des Lichtspektrums ein Spektrometer, das in der Lichtplanung meist keine Verwendung findet. Dieser Umstand wirft die Frage auf, inwieweit der Circadian Stimulus aus bekannten foto- und farbmetrischen Größen ermittelt werden kann. Deshalb befasst sich der erste Teil dieser Arbeit mit der Entwicklung von Berechnungsmodellen für den Circadian Stimulus, die nur auf den bekannten foto- und farbmetrischen Größen basieren. Hieraus entstanden zwei Berechnungsmodelle, die den Circadianen Stimulus mit der Beleuchtungsstärke Ev und dem Farbort z2° CIE-1931-Farbraum) bzw. der ähnlichsten Farbtemperatur CCT bestimmen. Die meisten Forschungsergebnisse zu nicht-visuellen Lichtwirkungen stammen aus Laborstudien, die unter Randbedingungen durchgeführt wurden, welche im Alltag nicht vorkommen. Es stellt sich daher die Frage, inwieweit diese Erkenntnisse auf die angewandte Lichttechnik (z. B. Lichtplanung) übertragbar sind. In diesem Zusammenhang kommen Feldstudien ins Spiel, deren Randbedingungen der Realität sehr nahe kommen. Allerdings sind Feldstudien, die nicht-visuelle Beleuchtungseffekte untersuchen, relativ selten. Eine Ausnahme bilden hier Feldstudien mit rotierenden Dreischichtsystemen, die aus medizinischer Sicht zu bewerten sind und daher in dieser Arbeit keine Berücksichtigung finden. Der zweite Teil der vorliegenden Arbeit beschäftigt sich mit Langzeit-Feldstudien zum Einfluss von Licht auf die Schlafqualität und Schläfrigkeit von Frühschichtarbeitenden im industriellen Umfeld. Die Studienergebnisse zeigen, dass Licht die Schläfrigkeit von späten Chronotypen während der Frühschicht akut reduziert. Im Gegensatz dazu wurde kein direkter Zusammenhang zwischen der Lichtexposition während der Arbeitszeit und der Schlafqualität gefunden. Die Arbeit belegt die nicht-visuelle Lichtwirkung im industriellen Umfeld und zeigt in der praxisnahen Studie eine mögliche Umsetzung einer Beleuchtungslösung, die die nicht-visuelle Wirkung gezielt in der Lichtplanung berücksichtigt.
Additional file 8 of Evolution of pogo, a separate superfamily of IS630-Tc1-mariner transposons, revealing recurrent domestication events in vertebrates
Creators: name: Gao, Bo
name: Wang, Yali
name: Diaby, Mohamed
name: Zong, Wencheng
name: Shen, Dan
name: Wang, Saisai
name: Chen, Cai
name: Wang, Xiaoyan
name: Song, Chengyi
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 8: Fig. S6. Alignment of pogo transposase domesticated proteins.
Patrimonio culturale e sviluppo locale: il ruolo del comunicatore museale e territoriale
Creators: name: Avena, Giuseppe
Publisher: name: Humanities
Year: 2023

description: Il settore turistico si configura attualmente come uno dei comparti economici più recenti, trovandosi in una fase di definizione sia per quanto riguarda i prodotti turistici che i profili di attività coinvolti. Al fine di soddisfare le richieste degli stakeholder del settore turistico, stanno emergendo professionalità sempre più specializzate, le quali rappresentano una suddivisione più specifica di figure professionali preesistenti. Tuttavia, queste nuove figure non riescono a rispondere appieno alle esigenze di un mercato composito nell'economia globale, caratterizzato anche da una maggiore capacità di rigenerazione a medio termine rispetto ad altri mercati mondiali.
description: Humanities, V. 12, N. 2 (2023)
A Note on Intersections of S-branes with p-branes
Creators: name: Deger, Nihat Sadik
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We first investigate intersections of an S-brane with a single p-brane and show that in addition to the already known solutions, it is possible to place the S-brane so that the radial part of the p-brane is not included in its worldvolume. This leads to a new set of solutions. Secondly, we consider intersections of an S-brane with a supersymmetric Dp_1-Dp_2 intersection and find the list of allowed solutions for both positions of the S-brane. Among them there are D1-D5-S1 and D1-D5-S5 intersections which might be appropriate for studying time dependent AdS/CFT correspondence.
description: 16 pages, revtex4, v2: minor improvements, references added, v3: minor improvements, references added, to appear in Phys.Rev. D
Additional file 1 of Grouping of genomic markers in populations with family structure
Creators: name: Wittenburg, Dörte
name: Doschoris, Michael
name: Klosa, Jan
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1. Given the population structure, half-sib families or full-sib families, the covariance matrix is analytically retrieved. Its computation using the R package hscovar is shown.
Analysis of 26 Barium Stars II. Contributions of s-, r- and p-processes in the production of heavy elements
Creators: name: Allen, Dinah M.
name: Barbuy, Beatriz
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Barium stars show enhanced abundances of the slow neutron capture (s-process) heavy elements, and for this reason they are suitable objects for the study of s-process elements. The aim of this work is to quantify the contributions of the s-, r- and p-processes for the total abundance of heavy elements from abundances derived for a sample of 26 barium stars. The abundance ratios between these processes and neutron exposures were studied. The abundances of the sample stars were compared to those of normal stars thus identifying the fraction relative to the s-process main component. The fittings of the sigmaN curves (neutron capture cross section times abundance, plotted against atomic mass number) for the sample stars suggest that the material from the companion asymptotic giant branch star had approximately the solar isotopic composition as concerns fractions of abundances relative to the s-process main component. The abundance ratios of heavy elements, hs, ls and s and the computed neutron exposure are similar to those of post-AGB stars. For some sample stars, an exponential neutron exposure fits well the observed data, whereas for others, a single neutron exposure provides a better fit. The comparison between barium and AGB stars supports the hypothesis of binarity for the barium star formation. Abundances of r-elements that are part of the s-process path in barium stars are usually higher than those in normal stars,and for this reason, barium stars seemed to be also enriched in r-elements, although in a lower degree than s-elements. No dependence on luminosity classes was found in the abundance ratios behaviour among the dwarfs and giants of the sample barium stars.
description: 30 pages including 24 figures, accepted to A&A
Healing of a hole in a carbon nanotube under electron irradiation in HRTEM
Creators: name: Lebedeva, Irina V.
name: Popov, Andrey M.
name: Knizhnik, Andrey A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Healing of a hole in a carbon nanotube under electron irradiation in HRTEM at room temperature is demonstrated using molecular dynamics simulations with the CompuTEM algorithm. Formation of an amorphous patch is observed in all simulation runs. The amorphous patch is formed in the absence of external carbon adatoms only via reconstruction of the carbon bond network. It consists mainly of 5-, 6- and 7-membered rings and causes a small bottleneck. In addition, further growth of the initial amorphous patch under electron irradiation takes place. Two-coordinated atoms are found to play a crucial role in the latter process, analogous to autocatalisys of rearrangements of rings in fullerenes. The principal rearrangements in the presence of two-coordinated atoms can be described as generalized sp-defect migration: a bond is broken between two three-coordinated atoms and one of them forms a new bond with a nearby two-coordinated atom. If the new and former two-coordinated atoms are not bonded, the reaction leads both to displacement of the sp defect and changes in rings of the sp$^2$ carbon structure. Migration by hopping of two-coordinated atoms and other reactions involving simultaneous breakage of two bonds are also detected but much rarely. Long-living two-coordinated atoms in the patch structure and related fast growth of the patch are observed in more than half of the simulation runs. Since the amorphous patch and bottleneck affect the electronic properties of the nanotube, such nanotubes can be perspective for nanoelectronic applications.
description: 9 pages, 5 figures
The Effects of Publishing Processes on Scientific Thought. Typography and Typology in Prehistoric Archaeology (1950s-1990s)
Creators: name: Plutniak, Sébastien
Publisher: name: figshare
Year: 2021
Subjects: subject: 220206 History and Philosophy of Science (incl. Non-historical Philosophy of Science)
subject: FOS: Philosophy, ethics and religion
subject: 220208 History and Philosophy of the Social Sciences
subject: Archaeology

description: In the last decades, many changes have occurred in scientific publishing, including online publication, data repositories, file formats and standards. The role played by computers in this process rekindled the argument on forms of technical determinism. This paper addresses this old debate by exploring the case of publishing processes in prehistoric archaeology during the second part of the twentieth century, prior to the wide-scale adoption of computers. It investigates the case of a collective and international attempt to standardize the typological analysis of prehistoric lithic objects, coined typologie analytique by Georges Laplace and developed by a group of French, Italian, and Spanish researchers. The aim of this paper is to: 1) present a general bibliometric scenario of prehistoric archaeology publishing in continental Europe; 2) report on the little-known typologie analytique method in archaeology, using publications, archives, and interviews; 3) show how the publication of scientific production was shaped by social (editorial policies, support networks) and material (typography features and publication formats) constraints; and 4) highlight how actors founded resources to control and counterbalance these effects, namely by changing and improving publishing formats
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐ²ÑÐ·Ð°Ð½Ð½Ð¾Ð¹ Ð¼ÐµÑ Ð°Ð½Ð¸ÐºÐ¾-Ð³Ð°Ð·Ð¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð´ÐµÐ¼Ð¿ÑÐµÑÐ° Ð²ÑÐ½ÑÐ¶Ð´ÐµÐ½Ð½ÑÑ ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹ Ð´Ð»Ñ ÐºÐ¾ÑÐ¿ÑÑÐ° Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Development of a coupled mechanical-gas-dynamic model of a forced vibration damper for a personal computer case
Creators: name: ÐÐ¾ÑÐ¾ÑÐ¾Ð², Ð¡ÐµÑÐ³ÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: ÐÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð² Ð¼ÐµÑÐ¾Ð´
ÐÐµÐ¼Ð¿ÑÐµÑÑ
Ð¼ÐµÑÐ¾Ð´ ÐºÐ¾Ð½ÐµÑÐ½ÑÑ Ð¾Ð±ÑÑÐ¼Ð¾Ð²
ÑÐ²ÑÐ·Ð°Ð½Ð½Ð°Ñ Ð·Ð°Ð´Ð°ÑÐ°
finite volume method
coupling solution

description: Ð¦ÐµÐ»ÑÑ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð´ÐµÐ¼Ð¿ÑÐµÑÐ° Ð²ÑÐ½ÑÐ¶Ð´ÐµÐ½Ð½ÑÑ ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹ Ð¸ Ð²ÑÑÐ¸ÑÐ»ÐµÐ½Ð¸Ðµ ÐµÐ³Ð¾ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸. ÐÐ»Ñ Ð´Ð¾ÑÑÐ¸Ð¶ÐµÐ½Ð¸Ñ ÑÐµÐ»Ð¸ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð° Ð¼Ð¾Ð´ÐµÐ»Ñ ÐºÐ¾ÑÐ¿ÑÑÐ° Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»ÑÐ½Ð¾ ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ°, Ð¿Ð¾ÑÑÐ¸ÑÐ°Ð½Ð° Ð°Ð¼Ð¿Ð»Ð¸ÑÑÐ´Ð° ÐµÐ³Ð¾ ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹ Ð¿Ð¾Ð´ Ð´ÐµÐ¹ÑÑÐ²Ð¸ÐµÐ¼ Ð²Ð¾Ð·Ð±ÑÐ¶Ð´Ð°ÑÑÐ¸Ñ ÑÐ¸Ð», Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð° Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¸Ð·Ð¾Ð²Ð°Ð½Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð´ÐµÐ¼Ð¿ÑÐµÑÐ° Ð² Ð²Ð¸Ð´Ðµ Ð¿Ð¾ÑÑÐ½Ñ, Ð¿Ð¾Ð¼ÐµÑÑÐ½Ð½Ð¾Ð³Ð¾ Ð² ÐºÐ°Ð¼ÐµÑÑ, Ð·Ð°Ð¿Ð¾Ð»Ð½ÐµÐ½Ð½ÑÑ Ð²ÑÐ·ÐºÐ¾Ð¹ Ð¶Ð¸Ð´ÐºÐ¾ÑÑÑÑ, Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½ ÑÑÐ´ ÑÐ²ÑÐ·Ð°Ð½Ð½ÑÑ Ð¼ÐµÑÐ°Ð½Ð¸ÐºÐ¾-Ð³Ð°Ð·Ð¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ°ÑÑÑÑÐ¾Ð², Ð¿Ð¾ÑÐ»Ðµ ÐºÐ¾ÑÐ¾ÑÑÑ Ð²ÑÑÐ¸ÑÐ»ÐµÐ½Ñ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½ÑÑ Ð´ÐµÐ¼Ð¿ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð´Ð»Ñ 9 ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¹ Ð¿Ð¾ÑÑÐ½Ñ, Ð¿Ð¾ÑÑÐ¸ÑÐ°Ð½Ð° ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ ÐºÐ°Ð¶Ð´Ð¾Ð³Ð¾ Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ°. ÐÐ¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð´ÐµÐ¼Ð¿ÑÐµÑÐ° Ð¼Ð¾Ð¶Ð½Ð¾ ÑÐ¸ÑÐ¾ÐºÐ¾ Ð¿ÑÐ¸Ð¼ÐµÐ½ÑÑÑ Ð² ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð°Ñ, Ð¿Ð¾Ð´Ð²ÐµÑÐ³Ð°ÑÑÐ¸ÑÑÑ Ð²Ð¸Ð±ÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐ¼ Ð½Ð°Ð³ÑÑÐ·ÐºÐ°Ð¼, Ð½Ð°Ð¿ÑÐ¸Ð¼ÐµÑ, ÐºÐ¾Ð¼Ð¿ÑÐµÑÑÐ¾ÑÑ, Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ð¸, ÑÐ¾ÑÐ¾ÑÑ Ð¸ Ð´Ñ.
description: The purpose of this work is to develop a model of the forced oscillation damper and calculate its efficiency. To achieve the goal, a model of a personal computer case was built, the amplitude of its oscillations under the action of exciting forces was calculated, a parameterized model of a damper in the form of a piston placed in a chamber filled with a viscous liquid was built, a number of related mechanical and gas-dynamic calculations were performed, after which the damping coefficients were calculated for 9 different piston designs, the effectiveness of each option is calculated. The resulting damper model can be widely used in various devices subjected to vibration loads, such as compressors, motors, rotors, etc.
A bar in the inner halo of barred galaxies I. Structure and kinematics of a representative model
Creators: name: Athanassoula, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: N-body simulations argue that the inner haloes of barred galaxies should not be spherical, nor even axisymmetric, but triaxial. The departure from sphericity is strongest near the centre and decreases outwards; typical axial ratios for the innermost parts are of the order of 0.8. The halo shape is prolate-like in the inner parts up to a certain radius and then turns to oblate-like. I call this inner halo structure the `halo bar' and analyse here in depth its structure and kinematics in a representative model. It is always considerably shorter than the disc bar. It lags the disc bar by only a few degrees at all radii and the difference between the two bar phases increases with distance from the centre. The two bars turn with roughly the same pattern speed. This means that the halo bar is a slow bar, since its corotation radius is much larger than its length. The bisymmetric component in the halo continues well outside the halo bar in the form of an open spiral, trailing behind the disc bar. The inner parts of the halo display some mean rotation in the same sense as the disc rotation. This is more important for particles nearer to the equatorial plane and decreases with increasing distance from it, but is always much smaller than the disc rotation.
description: 10 pages, 11 figures, accepted for publication in MNRAS
Carpophilus sayi Parsons 1943
Creators: name: Majka, Christopher
name: Webster, Reginald
name: Cline, Andrew
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Nitidulidae
Carpophilus
Carpophilus sayi

description: Carpophilus sayi Parsons, 1945 Carleton Co.: Jackson Falls, Bell Forest, 46.2210°N, 67.7210°W, 2.VI.2005, R. P. Webster, rich Appalachian hardwood forest, UV light trap, (1, RWC); York Co.: Charters Settlement, 45.8395°N, 66.7391°W, 11.VI.2003, R.P. Webster, mixed forest, beating foliage, (1, RWC); same locality, 25.IX.2005, 29.VIII.2007, mixed forest, in pile of corncobs and cornhusks, (4, RWC). Carpophilus sayi has been recorded in Canada from Manitoba, Québec, and Nova Scotia (McNamara 1991; Majka and Cline 2006), and in the United States from Maine south to Georgia, west to Texas and New Mexico, and north to Iowa and Wisconsin; also in California (Parsons 1943; Chandler 2001; Price and Young 2006). The species is frequently taken at sap flows of large-toothed poplar (Populus grandidentata), and maple (Acer sp.) and is associated with oak wilt fungus mats (Cease and Juzwik 2001; Price and Young 2006).
description: Published as part of Majka, Christopher, Webster, Reginald & Cline, Andrew, 2008, New records of Nitidulidae and Kateretidae (Coleoptera) from New Brunswick, Canada, pp. 337-356 in ZooKeys 2 (2) on page 343, DOI: 10.3897/zookeys.2.23, http://zenodo.org/record/576398
description: {"references": ["McNamara J (1991) Family Nitidulidae: sap beetles. In: Bousquet Y (Ed) Checklist of Beetles of Canada and Alaska. Agriculture Canada Research Branch Publication 1861 / E.: 214 - 217.", "Majka CG, Cline AR (2006) Th e Nitidulidae and Kateretidae (Coleoptera) of Nova Scotia and Prince Edward Island. Th e Canadian Entomologist 138: 314 - 332.", "Parsons CT (1943) A revision of Nearctic Nitidulidae (Coleoptera). Bulletin of the Museum of Comparative Zoology 92: 121 - 278.", "Chandler DS (2001) University of New Hampshire Insect and Arachnid Collections. http: // colsa 1. unh. edu: 591 / unhinsects. htm [accessed 18 August 2008]", "Price MB, Young DK (2006) An annotated checklist of Wisconsin sap and short-winged flower beetles (Coleoptera: Nitidulidae, Kataretidae). Insecta Mundi 20 (1 - 2): 68 - 84.", "Cease KR, Juzwik J (2001) Predominant nitidulid species (Coleoptera: Nitidulidae) associated with spring oak wilt mats in Minnesota. Canadian Journal of Forest Research 31: 635 - 643."]}
Potere politico, movimenti demici e mutazioni antropichenella Sicilia degli Emiri (827-1091)
Creators: name: Catalioto, Luciano
Publisher: name: Humanities
Year: 2023

description: Allo scorcio del periodo romano imperiale, dopo la guerra servile negli anni dell’imperatore Gallieno (253-268) e un precedente ridimensionamento progressivo dell’attività cerealicola in favore della pastorizia e di altre colture a maggior valore, come la vite e l’ulivo, la Sicilia fu una provincia relativamente pacificata ed economicamente prospera, poiché dal 332, quando l’annona egiziana era stata dirottata verso Costantinopoli, tornò a essere protagonista dell’approvvigionamento di grano a Roma e nel corso del IV secolo si rinsaldarono i rapporti commerciali con il Nord Africa.
description: Humanities, V. 12, N. 2 (2023)
Olfactory sensory neuron population expansions influence projection neuron adaptation and enhance odour tracking.
Creators: name: Takagi, Suguru
name: Sancer, Gizem
name: Abuin, Liliane
name: Stupski, S David
name: Arguello, J Roman
name: Prieto-Godino, Lucia L
name: Stern, David L
name: Cruchet, Steeve
name: Álvarez-Ocaña, Raquel
name: Wienecke, Carl FR
name: van Breugel, Floris
name: Jeanne, James M
name: Auer, Thomas O
name: Benton, Richard
Publisher: name: The Francis Crick Institute
Year: 2024
Subjects: classificationCode: Ecology,Evolution & Ethology
subject: Ecology,Evolution & Ethology
classificationCode: Genetics & Genomics
subject: Genetics & Genomics
classificationCode: Developmental Biology
subject: Developmental Biology
classificationCode: Neurosciences
subject: Neurosciences
subject: FOS: Clinical medicine
classificationCode: Imaging
subject: Imaging

description: The evolutionary expansion of sensory neuron populations detecting important environmental cues is widespread, but functionally enigmatic. We investigated this phenomenon through comparison of homologous olfactory pathways of Drosophila melanogaster and its close relative Drosophila sechellia, an extreme specialist for Morinda citrifolia noni fruit. D. sechellia has evolved species-specific expansions in select, noni-detecting olfactory sensory neuron (OSN) populations, through multigenic changes. Activation and inhibition of defined proportions of neurons demonstrate that OSN number increases contribute to stronger, more persistent, noni-odour tracking behaviour. These expansions result in increased synaptic connections of sensory neurons with their projection neuron (PN) partners, which are conserved in number between species. Surprisingly, having more OSNs does not lead to greater odour-evoked PN sensitivity or reliability. Rather, pathways with increased sensory pooling exhibit reduced PN adaptation, likely through weakened lateral inhibition. Our work reveals an unexpected functional impact of sensory neuron population expansions to explain ecologically-relevant, species-specific behaviour.
Newtonian gravity in d dimensions
Creators: name: Chavanis, Pierre-Henri
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the influence of the dimension of space on the thermodynamics of the classical and quantum self-gravitating gas. We consider Hamiltonian systems of self-gravitating particles described by the microcanonical ensemble and self-gravitating Brownian particles described by the canonical ensemble. We present a gallery of caloric curves in different dimensions of space and discuss the nature of phase transitions as a function of the dimension d. We also provide the general form of the Virial theorem in d dimensions and discuss the particularity of the dimension d=4 for Hamiltonian systems and the dimension d=2 for Brownian systems.
Surface pinning and triggered unwinding of skyrmions in a cubic chiral magnet
Creators: name: Milde, Peter
name: Neuber, Erik
name: Bauer, Andreas
name: Pfleiderer, Christian
name: Eng, Lukas M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In the cubic chiral magnet Fe$_{1-x}$Co$_{x}$Si a metastable state comprising of topologically nontrivial spin whirls, so-called skyrmions, may be preserved down to low temperatures by means of field cooling the sample. This metastable skyrmion state is energetically separated from the topologically trivial ground state by a considerable potential barrier, a phenomenon also referred to as topological protection. Using magnetic force microscopy on the surface of a bulk crystal, we show that certain positions are preferentially and reproducibly decorated with metastable skyrmions, indicating that surface pinning plays a crucial role. Increasing the magnetic field allows an increasing number of skyrmions to overcome the potential barrier, and hence to transform into the ground state. Most notably, we find that the unwinding of individual skyrmions may be triggered by the magnetic tip itself, however, only when its magnetization is aligned parallel to the external field. This implies that the stray field of the tip is key for locally overcoming the topological protection. Both the control of the position of topologically nontrivial states as well as their creation and annihilation on demand pose important challenges in the context of potential skyrmionic applications.
title: Computational Study of Voltage-gated Sodium/Potassium channels
Creators: name: Bauer, Daniel
Publisher: name: UNSPECIFIED
Year: 2021

description: Ion channels play a fundamental role in all biological entities ranging from small viruses up to complex animals. They are responsible for a vast number of different processes including virus uptake, regulation of the cells ionic balance, proliferation and cell signaling. Potassium channels are selective ion channels that primarily conduct potassium ions. Most channels of this subfamily are not permanently open, but their conductance can be regulated. This allows them to open or close in response to a broad range of environmental conditions. In humans, hyperpolarization-activated cyclic nucleotide-gated (HCN) channels are crucial for various biological processes of the neuronal and cardiovascular system. In the heart, they are responsible for the pacemaker current, which drives the action potential in cardiac pacemaker cells. In the brain, HCN channels contribute to various regulatory functions in neurons and are involved in processes such as the sleep-wake cycle, learning, and brain development. Accordingly, malfunctioning of HCN channels is linked to severe diseases such as arrhythmia and epilepsy. For the present work, molecular dynamics (MD) simulations were used to study several aspects of HCN channels. In the first part, comparative MD simulations were carried out to investigate how the substitution of amino acids at key positions of the HCN1 gene alters the channels structure and dynamics. In combination with experimental data, this information can provide insight into fundamental principles of channel functioning and assist in the understanding and treatment of HCN-mediated diseases. Therefore, several de novo mutations with clinical relevance were investigated. Similar mutational studies were also used to elucidate the role of the conserved HCN domain which is unique for HCN channels. It could be shown that mutation of a single amino acid can disrupt the mechanical connection between domains of the channel and thereby alter gating characteristics. The second part of this work focused on ion conductance. HCN channels discriminate only moderately between potassium and sodium and show a relatively low conductance. Using MD simulations with an applied electric field, it was possible to obtain insights into a unique mechanism that underlies ion conduction in HCN channels: the presented HCN-specific soft knock-on mechanism is an alternation between two distinct states with either two or one ion bound to the selectivity filter (SF) and separated by a single water molecule. Within this model, a theory is presented on how the low selectivity in HCN channels is a result of potassium and sodium binding to the same binding sites within the SF, but with different affinity. Finally, free energy calculations show that the experimentally determined low conductance of HCN channels is a result of high energy barriers within the SF which are not compatible with diffusion-limited conductance.
Additional file 7 of Grouping of genomic markers in populations with family structure
Creators: name: Wittenburg, Dörte
name: Doschoris, Michael
name: Klosa, Jan
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 7. Number of groups, number of groups with at least three SNPs and Calinski-Harabasz index for different simulation scenarios and varying threshold.
Structure of the northeast Pacific wave cyclone of 19 November 1980
Creators: name: Gratham, Christopher H.
Publisher: name: University of British Columbia
Year: 2010

description: The frontal system that passed over the Storm Transfer and Response Experiment Study area on 19 November 1980 was the third vigorous system in succession to affect this region of the northeast Pacific Ocean. This study marks the first detailed investigation of a frontal wave over the Gulf of Alaska and as such provides structural details not shown in other studies. Precipitation and changes in temperature, wind velocity, and pressure were associated with the passage of both the warm and cold fronts. The thermal structure exhibits a well defined warm sector with regions of large baroclinicity in both the warm and cold frontal zones. Data from radiosonde releases from the northern-most of two observing platforms indicate a mid-level upper moisture front above the kata cold front. Throughout these northern cross-sections, gradients in the warm and cold frontal zones are of similar magnitudes while sections from the southern ship show a warm frontal zone that is more intense than the cold transition region. Along-frontal gradients of equivalent potential temperature are of the same order of magnitude as the cross-frontal gradients. Horizontal wind components relative to the storm indicate strong inflow to the system at lower layers from both south and east. The wind exits the system to the west and south. Upper level winds are westerly throughout. Gradients of wind components are strongest in frontal zones, which results in the cold front coincident with the peak axis in the vertical component of relative vorticity. The field of horizontal divergence also exhibits its largest magnitudes in the frontal zones, with convergence in the warm frontal zone and divergence in the cold transition region. This seldom observed feature of divergence at the cold front leads to a downwelling motion in this region and categorizes the front as a kata-cold trout. Most of the upward vertical velocity occurs in and around the warm frontal zone as a result of horizontal convergence in this region. Relative isentropic analysis indicates that there are three main air streams within the system. The warm conveyor belt flows to the north in the warm sector and rises gradually as it makes it way to the north. Ahead of the warm front and behind the cold front are two cold air streams that flow to the north and south respectively. Analysis of the kinematic, frontogenesis indicates that confluence and infrequently studied shear effects are the most important processes influencing the frontal gradients. Analysis of uncertainty in the terms of the prognostic kinematic frontogenesis equations reveals that the diabatic heat and twisting terms that others have found important are smaller than their estimated errors in this study.
Holography of Wilson-Loop Expectation Values with Local Operator Insertions
Creators: name: Miwa, Akitsugu
name: Yoneya, Tamiaki
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the expectation values of Wilson-loop operators with the insertionsof local operators Z^J and Zbar^J with large R-charge J from the bulk viewpoint of AdS/CFT correspondence. Classical solutions of strings attached to such deformed Wilson loops at the conformal boundary are constructed and are applied to the computation of Wilson-loop expectation values. We argue that in order to have such solutions for general insertions at finite positions in the base spacetime of the gauge theory, it is crucial to interpret the holographic correspondence in the semi-classical picture as a tunneling phenomenon, as has been previously established for holographic computations of correlators of BMN operators. This also requires to use the Euclideanized AdS background and Euclidean super Yang-Mills theory.
description: 16 pages, 5 figures, version to be published in JHEP, no change from the previous version, only extraneous figure file is removed
Salina s’inabisserà?
Creators: name: La Greca, Giuseppe
Publisher: name: Humanities
Year: 2023

description: Le cronache degli anni Quaranta – cinquanta relative alle isole Eolie sono scarne ed ancor più quando trattano delle singole isole. L'isola di Salina, nel 1954, fu protagonista di un episodio particolare, un periodo sismico di frequenza assai elevata e culminante in una scossa di fortissima intensità che si verificò durante il mese di dicembre colpendo gravemente l'isola.
description: Humanities, V. 12, N. 2 (2023)
Additional file 4 of MdFRK2-mediated sugar metabolism accelerates cellulose accumulation in apple and poplar
Creators: name: Su, Jing
name: Zhang, Chunxia
name: Zhu, Lingcheng
name: Yang, Nanxiang
name: Yang, Jingjing
name: Ma, Baiquan
name: Ma, Fengwang
name: Li, Mingjun
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Plant Biology
subject: Computational Biology

description: Additional file 4: Table S2. Primers used in this study.
Extracting the spectral function of the cuprates by a full two-dimensional analysis: Angle-resolved photoemission spectra of Bi2Sr2CuO6
Creators: name: Meevasana, W.
name: Baumberger, F.
name: Tanaka, K.
name: Schmitt, F.
name: Dunkel, W. R.
name: Lu, D. H.
name: Mo, S. -K.
name: Eisaki, H.
name: Shen, Z. -X.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recently, angle-resolved photoemission spectroscopy (ARPES) has revealed a dispersion anomaly at high binding energy near 0.3-0.5eV in various families of the high-temperature superconductors. For further studies of this anomaly we present a new two-dimensional fitting-scheme and apply it to high-statistics ARPES data of the strongly-overdoped Bi2Sr2CuO6 cuprate superconductor. The procedure allows us to extract theself-energy in an extended energy and momentum range. It is found that the spectral function of Bi2Sr2CuO6 can be parameterized using a small set of tight-binding parameters and a weakly-momentum-dependent self-energy up to 0.7 eV in binding energy and over the entire first Brillouin zone. Moreover the analysis gives an estimate of the momentum dependence of the matrix element, a quantity, which is often neglected in ARPES analyses.
description: 8 pages, 5 figures
La modernizzazione dell’esercito inglese tra Seicento e Settecento
Creators: name: Barbera, Cristiano
Publisher: name: Humanities
Year: 2023

description: Tra il XVII e il XVIII secolo si assiste a un riassetto del sistema militare europeo, frutto di un’evoluzione iniziata ben due secoli prima: è l’apice della “rivoluzione militare”, quel processo che porta all’instaurazione dei cosiddetti eserciti nazionali, determinando un cambiamento sia nella struttura che nelle tattiche di combattimento.
Un percorso che trova la sua massima espressione proprio all’inizio del
Settecento, con la Guerra di successione spagnola: il conflitto, infatti, rappresenta il catalizzatore per l’attuazione di una serie di riforme, generanti una standardizzazione degli apparati militari europei. Tra questi vi è quello adottato dal Regno di Gran Bretagna, il cui sviluppo, iniziato a metà Seicento durante il Conflitto civile, porterà alla sua modernizzazione nel corso dei decenni successivi.
description: Humanities, V. 12, N. 2 (2023)
Additional file 5 of Sustained CHK2 activity, but not ATM activity, is critical to maintain a G1 arrest after DNA damage in untransformed cells
Creators: name: García-Santisteban, Iraia
name: Llopis, Alba
name: Lenno Krenning
name: Vallejo-Rodríguez, Jon
name: Broek, Bram Van Den
name: Zubiaga, Ana M.
name: Medema, René H.
Publisher: name: figshare
Year: 2021
Subjects: subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: 60506 Virology

description: Additional file 5: Fig. S5. Uncropped western blots.
title: Rapunzel syndrome – A rare case of trichophytobezoar extending to the ileum
Creators: name: Shetty, Harshitha
Publisher: name: EURORAD
Year: 2024
Subjects: subject: Abdominal imaging
subject: Abdomen
subject: Paediatric
subject: CT
subject: Ultrasound
subject: Clinical Case

description: Clinical History: A 12-year-old girl was brought by her mother with complaints of diffuse, moderate intensity, progressive abdominal pain for one day and one episode of non-bilious vomiting. There was no history of fever, jaundice or altered bowel.

description: 12 years, female
Dynamics of Pinned Magnetic Vortices
Creators: name: Compton, R. L.
name: Crowell, P. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We observe the dynamics of a single magnetic vortex in the presence of a random array of pinning sites. At low excitation amplitudes, the vortex core gyrates about its equilibrium position with a frequency that is characteristic of a single pinning site. At high amplitudes, the frequency of gyration is determined by the magnetostatic energy of the entire vortex, which is confined in a micron-scale disk. We observe a sharp transition between these two amplitude regimes that is due to depinning of the vortex core from a local defect. The distribution of pinning sites is determined by mapping fluctuations in the frequency as the vortex core is displaced by a static in-plane magnetic field.
description: 4 Figures, submitted to Phys. Rev. Lett
Data-Driven Rate-Dependent Fracture Mechanics
Creators: name: Carrara, Pietro
name: Ortiz, Michael
name: De Lorenzis, Laura
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We extend the model-free data-driven paradigm for rate-independent fracture mechanics proposed in Carrara et al. (2020), Data-driven Fracture Mechanics, Comp. Meth. App. Mech. Eng., 372 to rate-dependent fracture and sub-critical fatigue. The problem is formulated by combining the balance governing equations stemming from variational principles with a set of data points that encodes the fracture constitutive behavior of the material. The solution is found as the data point that best satisfies the meta-stability condition as given by the variational procedure and following a distance minimization approach based on closest-point-projection. The approach is tested on different setups adopting different types of rate-dependent fracture and fatigue models affected or not by white noise.
description: Submitted for Review in Journal of Mechanics and Physics of Solids (JMPS)
Da Ficarra alla conquista di Palermo: Giuseppe e Ferdinando Malvica
Creators: name: Tumeo, Vittorio Lorenzo
name: Zito, Agostino
Publisher: name: Humanities
Year: 2023

description: Il contributo intende ricostruire la vicenda umana, sociale ed economica di due esponenti della famiglia Malvica, il capostipite Giuseppe e il nipote di questi, Ferdinando.
Vengono qui indagate le origini dello scaltro uomo d’affari che, partito umile da Ficarra, borgo dei Nebrodi in provincia di Messina, si affermò economicamente a Palermo creando, tra ‘700 e ‘800, una solida impresa operante in più campi industriali, ma dominando soprattutto nel settore della manifattura ceramica di lusso. Il declino della fabbrica emerge negli scritti del nipote di Giuseppe, Ferdinando, figura interessante se non unica dell’ Ottocento siciliano le cui idee si ritmarono sullo spartito di un altalenante conflitto personale tra posizioni liberali assolutistiche e borboniche conservatrici, che ne rendono interessante il pensiero e meritevole di approfondimento.
description: Humanities, V. 12, N. 2 (2023)
Eugenics "Technologies", Race and Freemasonryin the Interwar Transylvania
Creators: name: Varga, Attila
Publisher: name: Humanities
Year: 2023
Subjects: Eugenics Technologies, Race, Freemasonry, Interwar Transylvania, Romania

description: This analysis takes into account a significant chapter of the history of elites and eugenics from Transylvania during the interwar period. In his famous „Black Notebook”, Alexandru Vaida-Voevod, one of the most important personalities of the Romanian Great Union generation, wrote some surprising reflections about eugenics, race, and Romanian national superiority. In different ways, his reflections underline an invitation to analyze Romanian elites from the interwar period, as well as their way of thinking and feeling. Vaida's "Black Notebook" can therefore be considered "a torn page" from an important chapter in the history of the Romanian eugenics movement. It also represents an important key for understanding the history of Romanian freemasonry in Transylvania from the first two decades of the 20th century.
description: Humanities, V. 12, N. 2 (2023)
Path planning and control for remotely operated vehicles focused on autonomous visual inspection of floating offshore wind structure
Creators: name: Santos, Phillipe
name: Omerdic, Edin
name: Santos, Matheus
name: Fitzgerald, Luke
name: Fahy, Cillian
name: Musselwhite-Veitch, H.
name: Weir, Anthony
name: Dooly, Gerard
name: Toal, Daniel
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 40
subject: Engineering

description: This paper introduces an innovative approach to address the challenges of inspecting offshore wind turbines by presenting a real-time dynamic path-planning system for remotely operated vehicles (ROVs). Focused on floating wind turbine structures, the proposed methodology integrates an Inertial Measurement Unit (IMU) into the structure, allowing dynamic adjustment of the inspection path based on real-time pose data. Utilizing a fault-tolerant control solution, the system enables autonomous flight control of ROVs, maintaining consistent orientation towards the structure and desired inspection distance. The applicability of the approach is validated through simulations in the OceanRINGS+ control suite, emphasizing the importance of dynamic path planning in enhancing efficiency, safety, and cost-effectiveness in offshore wind turbine inspections.