cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Enhanced Gravitational Waves from Inflaton Oscillons
Creators: name: Lozanov, Kaloian D.
name: Takhistov, Volodymyr
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In broad classes of inflationary models the period of accelerated expansion is followed by fragmentation of the inflaton scalar field into localized, long-lived and massive oscillon excitations. We demonstrate that matter-dominance of oscillons, followed by their rapid decay, significantly enhances the primordial gravitational wave (GW) spectrum. These oscillon-induced GWs, sourced by second-order perturbations, are distinct and could be orders of magnitude lower in frequency than the previously considered GWs associated with oscillon formation. We show that detectable oscillon-induced GW signatures establish direct tests independent from cosmic microwave background radiation (CMB) for regions of parameter space of monodromy, logarithmic and pure natural (plateau) potential classes of inflationary models, among others. We demonstrate that oscillon-induced GWs in a model based on pure natural inflation could be directly observable with the Einstein Telescope, Cosmic Explorer and DECIGO. These signatures offer a new route for probing the underlying inflationary physics.
description: 10 pages, 3 figures; v2: matches version published in PRL
Reduction of invariant constrained systems using anholonomic frames
Creators: name: Crampin, M.
name: Mestdag, T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 34A26, 37J60, 70G45, 70H03

description: We analyze two reduction methods for nonholonomic systems that are invariant under the action of a Lie group on the configuration space. Our approach for obtaining the reduced equations is entirely based on the observation that the dynamics can be represented by a second-order differential equations vector field and that in both cases the reduced dynamics can be described by expressing that vector field in terms of an appropriately chosen anholonomic frame.
description: 19 pages
Giocare insieme: l'integrazione
Creators: name: Akai, Miryam
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2011

description: Il mio progetto di ricerca tratta dell’integrazione della classe speciale nella classe regolare, nell’ambito dell’educazione fisica. Dopo una riflessione teorica e un’intervista a due docenti specialisti, ho progettato delle attività in palestra che mettessero in luce delle dinamiche in cui i bambini delle diverse classi avrebbero dovuto collaborare e interagire per un obiettivo comune. Ho osservato quattro bambini svolgere dei giochi sociomotori assieme a classi regolari, ho rilevato delle interpretazioni confrontabili con la teoria e che definissero il ruolo dell’integrazione nella scuola elementare, per rapporto alle esigenze dei bambini e al loro rendimento scolastico. Inoltre ho cercato di evincere quali siano le attività più opportune per le lezioni in comune. Grazie ai dati ottenuti posso affermare di aver rilevato una serie di dinamiche di interazione tra i bambini e una grande motivazione da parte loro nello svolgere le attività di educazione fisica in comune. Inoltre i bambini hanno svolto le attività dimostrando la capacità di agire e di riflettere trovando soluzioni adeguate alle proprie capacità. Ho evinto che le attività ideali per queste lezioni sono quelle in cui si collabora per svolgere dei percorsi con attrezzi. Relatore: Alejandro Arigoni
Bond behaviour of commercially produced structural concrete from recycled coarse and fine aggregates
Creators: name: Rockson, Charles
Publisher: name: University of British Columbia
Year: 2020

description: Recycled concrete aggregates (RCAs) offer a sustainable solution to the multifarious exigent crises involving the ever-increasing demand of virgin aggregates and the disposal of construction and demolition waste arising from demolishing non-serviceable infrastructure. However, the use of RCA in concrete is mostly limited to non-structural purposes at a limited replacement proportion of the virgin aggregates in the standards and codes. Also, using an appropriate test method to quantitatively determine the bond behaviour of steel rebar in recycled structural concrete in addition to other several variables affecting the bond remains unexplored. This study presents the results of an experimental program on the bond behaviour between commercially produced quality recycled concrete and deformed steel rebars. Seventy beam-end specimens were tested using the ASTM A944-15, where five critical variables affecting bond behaviour, such as cover, bond length, bar size, bar position, and transverse reinforcement were investigated. For the five variables investigated, the normalized bond strengths of recycled concrete mixes were generally comparable to the conventional natural concrete mixes. Furthermore, the results showed that the bond strengths were conservative with several descriptive and code design equations, as well as fitting into the current ACI 408 database for conventional concrete. Finally, a new descriptive model equation was proposed and validated using the experimental results.
Fondi islamici e Fondi Etici, Investitori Islamici e Investitori Etici
Creators: name: Palmucci, Fabrizio
name: Paudice, Federica
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2021
Subjects: SECS-P/11 Economia degli intermediari finanziari

description: Il lavoro confronta i Fondi Etici con i Fondi Islamici, nelle performance e nei flussi. I flussi in relazione alle performance suggeriscono alcune considerazioni sugli investitori Etici e quelli Islamici. I principali risultati sono i seguenti: I fondi islamici mostrano performance superiori (seppure negative), gli ulteriori screening imposti sulla stock selection non impattano negativamente. Gli investitori islamici sono più attenti alle performance dei loro fondi. Gli investitori etici tendono a premiare significativamente i fondi che performano positivamente e non puniscono in maniera significativa quelli che performano negativamente. Gli investitori islamici, viceversa, disinvestono dai fondi che performano negativamente e premiano in misura inferiore i fondi che performano positivamente.
Higgs Portal Inflation
Creators: name: Lebedev, Oleg
name: Lee, Hyun Min
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Higgs sector of the Standard Model offers a unique opportunity to probe the hidden sector. The Higgs squared operator is the only dimension two operator which is Lorentz and gauge invariant. It can therefore couple both to scalar curvature and the hidden sector at the dim--4 level. We consider the possibility that a combination of the Higgs and a singlet from the hidden sector plays the role of inflaton, due to their large couplings to gravity. This implies that the quartic couplings satisfy certain constraints which leads to distinct low energy phenomenology, including Higgs signals at the LHC. We also address the unitarity issues and show that our analysis survives the unitarization procedure.
description: 23 pages, 17 figures, Version to appear in European Physical Journal C
Observation of large scale precursor correlations between cosmic rays and earthquakes
Creators: name: Homola, P.
name: Marchenko, V.
name: Napolitano, A.
name: Damian, R.
name: Guzik, R.
name: Alvarez-Castillo, D.
name: Stuglik, S.
name: Ruimi, O.
name: Skorenok, O.
name: Zamora-Saa, J.
name: Vaquero, J. M.
name: Wibig, T.
name: Knap, M.
name: Dziadkowiec, K.
name: Karpiel, M.
name: Sushchov, O.
name: Mietelski, J. W.
name: Gorzkiewicz, K.
name: Zabari, N.
name: Cheminant, K. Almeida
name: Idźkowski, B.
name: Bulik, T.
name: Bhatta, G.
name: Budnev, N.
name: Kamiński, R.
name: Medvedev, M. V.
name: Kozak, K.
name: Bar, O.
name: Bibrzycki, Ł.
name: Bielewicz, M.
name: Frontczak, M.
name: Kovács, P.
name: Łozowski, B.
name: Miszczyk, J.
name: Niedźwiecki, M.
name: del Peral, L.
name: Piekarczyk, M.
name: Frias, M. D. Rodriguez
name: Rzecki, K.
name: Smelcerz, K.
name: Sośnicki, T.
name: Stasielak, J.
name: Tursunov, A. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Geophysics (physics.geo-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The search for correlations between secondary cosmic ray detection rates and seismic effects has long been a subject of investigation motivated by the hope of identifying a new precursor type that could feed a global early warning system against earthquakes. Here we show for the first time that the average variation of the cosmic ray detection rates correlates with the global seismic activity to be observed with a time lag of approximately two weeks, and that the significance of the effect varies with a periodicity resembling the undecenal solar cycle, with a shift in phase of around three years, exceeding 6 sigma at local maxima. The precursor characteristics of the observed correlations point to a pioneer perspective of an early warning system against earthquakes.
description: 16 pages, 4 figures in the main article and 11 pages and 4 figures in the Suplementary Material
Entanglement generation in spatially separated systems using quantum walk
Creators: name: Chandrashekar, C. M.
name: Goyal, Sandeep K.
name: Banerjee, Subhashish
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a novel scheme to generate entanglement between two spatially separated systems. The scheme makes use of spatial entanglement generated by a single-particle quantum walk which is used to entangle two spatially separated, not necessarily correlated, systems. This scheme can be used to entangle any two systems which can interact with the spatial modes entangled during the quantum walk evolution. A notable feature is that we can control the quantum walk dynamics and its ability to localize leads to a substantial control and improvement in the entanglement output.
description: 9 pages, 5 figures
Inflation and primordial gravitational waves in scale-invariant quadratic gravity with Higgs
Creators: name: Ghoshal, Anish
name: Mukherjee, Debangshu
name: Rinaldi, Massimiliano
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In scale-invariant models of fundamental physics all mass scales are generated via spontaneous symmetry breaking. In this work, we study inflation in scale-invariant quadratic gravity, in which the Planck mass is generated classically by a scalar field, which evolves from an unstable fixed point to a stable one thus breaking scale-invariance. We investigate the dynamics by means of dynamical system standard techniques. By computing the spectral indices and comparing them with data, we put some constraints on the three dimensionless parameters of the theory. We show that certain regions of the parameter space will be within the range of future CMB missions like CMB-S4, LiteBIRD and STPol. The second half of the paper is dedicated to the analysis of inflationary first-order tensor perturbations and the calculation of the power spectrum of the gravitational waves. We comment on our results and compare them with the ones of mixed Starobinsky-Higgs inflation.
description: Version published on JHEP
Berry Phase and Pseudospin Winding Number in Bilayer Graphene
Creators: name: Park, Cheol-Hwan
name: Marzari, Nicola
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ever since the novel quantum Hall effect in bilayer graphene was discovered, and explained by a Berry phase of 2pi [K. S. Novoselov et al., "Unconventional quantum Hall effect and Berry's phase of 2pi in bilayer graphene", Nature Phys. 2, 177 (2006)], it has been widely accepted that the low-energy electronic wavefunction in this system is described by a non-trivial Berry phase of 2pi, different from the zero phase of a conventional two-dimensional electron gas. Here, we show that (i) the relevant Berry phase for bilayer graphene is not different from that for a conventional two-dimensional electron gas (as expected, given that Berry phase is only meaningful modulo 2pi) and that (ii) what is actually observed in the quantum Hall measurements is not the absolute value of the Berry phase but the pseudospin winding number.
description: 6 pages, 3 figures, published version
Il Ponte Sorgente. Passerella pedonale con struttura in legno Laufen (BL)
Creators: name: Spinedi, Stefano
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2019

description: Il sito prescelto per la localizzazione della passerella è di fondamentale importanza per garantire il collegamento pedonale all’interno della città. Lo scopo è realizzare un ponte pedonale con struttura in legno evitando l’inserimento di pilastri intermedi sul letto del fiume e rispettando le esigenze della committenza che richiede punti di collegamento alle estremità e sezione libera riservata al transito. Il Ponte Sorgente può essere definito un ponte sospeso formato da un unico piano orizzontale quale piattabanda, collegata tramite pendini alla struttura portante per una luce totale di 39.0 [m] ed una larghezza di camminamento pari a 3.0 [m].
Infant gut fungal dysbiosis drives asthma onset and severity
Creators: name: Boutin, Rozlyn C.T.
Publisher: name: University of British Columbia
Year: 2021

description: Global asthma prevalence has reached epidemic proportions, emphasizing an urgent need for research into the causes of this burdensome and incurable early-onset disease. A growing body of evidence implicates the early life gut microbiota in immunomodulation relevant to asthma, and suggests that an imbalanced (dysbiotic) gut microbiota may precede disease onset. Notably, fungal communities of the infant gut microbiota (the mycobiota) are understudied, but have recently been shown in two birth cohorts to differ strikingly according to atopy/asthma risk in association with bacterial dysbiosis. I hypothesized that fungal dysbiosis in the infant gut contributes to asthma development through interactions with the host and immunomodulatory bacteria to alter key early-life immune mechanisms involved in this disease. To address this hypothesis, I first generated additional evidence supporting associations between bacterial dysbiosis at three months of age with atopic outcomes in Canadian children from the CHILD Cohort Study. I then examined the fungal communities of the gut microbiota in these infants at three months and one year of age and characterized features of early life gut fungal dysbiosis associated with atopic disease outcomes at age five years. Replicating our lab’s findings in Ecuadorian infants, these analyses revealed that overgrowth of the yeast Pichia kudriavzevii in the infant gut was associated with atopic outcomes at age five years. Using a mouse model of allergic airway disease, I then established a causal role for overgrowth of P. kudriavzevii within the infant gut in increasing allergic airway disease severity later in life. Finally, I used in vitro microbiology techniques to determine how bacterial-fungal interactions shape asthma-associated gut microbiota community structures. I found that bacterial-derived short-chain fatty acids (SCFAs), which we found to be reduced in abundance in stool from infants at risk of atopic disease, inhibit the growth of P. kudriavzevii and the ability of this yeast to adhere to gut epithelial cells. Using biologically relevant experimental systems that broadly address the role of early life fungal dysbiosis in asthma, I provide mechanistic insights into gut microbiota bacterial-fungal interactions, mycobiota-immune interactions, and the gut-lung axis. This work may ultimately inform the development of novel microbiota-based therapeutics.
Public and private resource trade-offs for a quantum channel
Creators: name: Wilde, Mark M.
name: Hsieh, Min-Hsiu
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Collins and Popescu realized a powerful analogy between several resources in classical and quantum information theory. The Collins-Popescu analogy states that public classical communication, private classical communication, and secret key interact with one another somewhat similarly to the way that classical communication, quantum communication, and entanglement interact. This paper discusses the information-theoretic treatment of this analogy for the case of noisy quantum channels. We determine a capacity region for a quantum channel interacting with the noiseless resources of public classical communication, private classical communication, and secret key. We then compare this region with the classical-quantum-entanglement region from our prior efforts and explicitly observe the information-theoretic consequences of the strong correlations in entanglement and the lack of a super-dense coding protocol in the public-private-secret-key setting. The region simplifies for several realistic, physically-motivated channels such as entanglement-breaking channels, Hadamard channels, and quantum erasure channels, and we are able to compute and plot the region for several examples of these channels.
description: 26 pages, 5 figures; v2 has minor corrections; v3 has correction regarding the optimization of the region. arXiv admin note: substantial text overlap with arXiv:1004.0458
Facciamo lezione insieme: il co-teaching in Togo
Creators: name: Vigilante, Deborah
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2012

description: Questo lavoro di diploma riguarda lo stage effettuato in Togo con tre associazioni che per questa occasione hanno collaborato: Amici dell’oasi Togo, Havilolo Kplé Badou e Aiuto Ayomé Africa. Dal momento che ho trascorso tre settimane in una classe collaborando e lavorando con un docente locale il tema del diploma è il co-teaching, ossia la presenza di due docenti in aula che collaborano e gestiscono assieme tutto ciò che riguarda la vita di classe, dalla progettazione, alla gestione della lezione, alla valutazione. Ho analizzato i tre aspetti principali del co-teaching che sono i modelli, ossia le modalità attraverso le quali si può effettuare una lezione, la progettazione delle lezioni e l’ownership, ossia il sentimento di appartenenza al progetto. Per tutte e tre ho verificato se nel mio operato con il docente locale fossero presenti e, se nel metterle in pratica, vi fosse un’ evoluzione o involuzione. I risultati principali rivelano che abbiamo utilizzato maggiormente il modello che la teoria considera più complesso e da eseguire dopo una certa esperienza in co-teaching. Per quanto riguarda la progettazione si può constatare che l’abbiamo gestita insieme, anche se non proprio come consigliato dalla teoria. Infine, per quanto riguarda l’ownership, per ambedue si è sviluppato un senso d’appartenenza al progetto. Questo lavoro offre spunti per riflettere sul co-teaching in contesti di diversità culturale e come strumento di sviluppo professionale per i docenti dei Paesi del Sud. Relatore: Luca Botturi
Time-dependent occupation numbers in reduced-density-matrix functional theory: Application to an interacting Landau-Zener model
Creators: name: Requist, Ryan
name: Pankratov, Oleg
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We prove that if the two-body terms in the equation of motion for the one-body reduced density matrix are approximated by ground-state functionals, the eigenvalues of the one-body reduced density matrix (occupation numbers) remain constant in time. This deficiency is related to the inability of such an approximation to account for relative phases in the two-body reduced density matrix. We derive an exact differential equation giving the functional dependence of these phases in an interacting Landau-Zener model and study their behavior in short- and long-time regimes. The phases undergo resonances whenever the occupation numbers approach the boundaries of the interval [0,1]. In the long-time regime, the occupation numbers display correlation-induced oscillations and the memory dependence of the functionals assumes a simple form.
description: 6 pages, revised, Fig. 2 added
A proof of a Melrose's trace formula
Creators: name: de Verdière, Yves Colin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: We give a new proof ofan extension of the Chazarain-Duistermaat-Guillemin wave traceformula to the case of 3D-contact manifolds.We use a normal form allowing to reduce to the case of the Heisenberg group.
Immutable Infrastructure applied to a real use case
Creators: name: Oggian, Elia
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2018

description: Il progetto prevede l’introduzione del concetto di infrastruttura immutabile, con lo scopo principale di minimizzare i rischi di interruzioni dei sistemi informatici, che vengono usati per la gestione dei pazienti negli ospedali dell’Ente Ospedaliero Cantonale (EOC). L’infrastruttura immutabile viene integrata con i sistemi informatici attualmente in uso. L’integrazione prevede l’automatizzazione dei processi e delle configurazioni dei componenti dell’infrastruttura. Questo ha permesso l’adozione del concetto di infrastruttura immutabile, permettendo quindi di apportare modifiche ai server sostituendoli con degli altri che sono stati modificati in base alle necessità. Sono stati definiti i flussi di sostituzione e di integrazione necessari per garantire un’ottimale rotazione dei server all’introduzione di una nuova modifica. Vengono inoltre utilizzati strumenti e concetti innovativi, grazie ai quali è stato possibile ottenere dinamismo nell’attuare la sostituzione dei server. Il prototipo sviluppato si interfaccia con la piattaforma di virtualizzazione dei server per la creazione ed eliminazione degli stessi, con il load balancer per modificarne la sua configurazione e, infine, con il container orchestrator per permettergli di erogare i microservizi utilizzando i server virtuali. L’intera implementazione volge a minimizzare il tempo di disservizio alla sostituzione dei server. Durante l’implementazione sono state necessarie alcune modifiche all’infrastruttura di EOC per rendere più dinamica la gestione dei server, di conseguenza sono state esplorate ed adottate soluzioni innovative rispetto a quelle tradizionalmente utilizzate in azienda. Il prototipo di infrastruttura immutabile implementato potrà essere utilizzato per esporre oltre 120 microservizi, i quali vengono interrogati dall’applicazione per la gestione e la cura dei pazienti negli ospedali cantonali di EOC. Si prevede dunque un utilizzo dell’infrastruttura da parte di oltre 2000 utenti, 24 ore al giorno, ogni giorno. Il rischio che questi utenti riscontrino dei disservizi viene ridotto grazie alla migliore gestione dell’infrastruttura che è stata resa appunto immutabile.
Finite dimensional vertex
Creators: name: Mikhailov, Andrei
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 81T30, 17B56, 83E50

description: The spectrum of linearized excitations of the Type IIB SUGRA on AdS5xS5 contains both unitary and non-unitary representations. Among the non-unitary, some are finite-dimensional. We explicitly construct the pure spinor vertex operators for a family of such finite-dimensional representations. The construction can also be applied to infinite-dimensional representations, including unitary, although it becomes in this case somewhat less explicit.
description: LaTeX 48pp; v2: added explanations, small corrections, reference
Infrared-safe flavoured anti-$k_T$ jets
Creators: name: Czakon, Michal
name: Mitov, Alexander
name: Poncelet, Rene
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Flavour tagging is technically challenging on the experimental side. However, it suffers from a more fundamental problem from the theoretical point of view, in particular when implemented in fixed-order perturbation theory. It turns out that an infrared-safe definition of a flavoured jet is intricate due to the singularities induced by the emission of flavoured quark-anti-quark pairs of negligible energy. Although this issue has been addressed by a modification of the standard $k_T$ jet algorithm, the situation is not entirely satisfactory as most measurements rather use the anti-$k_T$ jet algorithm. In this work, we propose a flavour-aware infrared-safe modification of the anti-$k_T$ jet algorithm that is easy to implement within perturbative Monte Carlo frameworks and has minor impact on jet phenomenology when flavour tagging is not required. Besides the numerical verification of the infrared safety of the proposed algorithm at next-to-next-to-leading order, we also present results for the hadro-production of a lepton pair in association with a $b$-jet, and of a top-quark pair decaying into $b$-jets and leptons.
description: 21 pages, 26 figures
The vibrational modes of simplicial molecules
Creators: name: Conley, Charles H.
name: Erickson, Jon
Publisher: name: arXiv
Year: 2022
Subjects: subject: Classical Physics (physics.class-ph)
subject: Combinatorics (math.CO)
subject: History and Overview (math.HO)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 00A08 (Primary) 20C35, 20C30 (Secondary)

description: Consider a "simplicial molecule": $n$ equal point masses placed at the vertices of a regular $(n-1)$-simplex, connected by ${n \choose 2}$ identical springs. We apply the representation theory of the symmetric group $S_n$ to compute its vibrational modes.
description: 11 pages
title: Rotating quadcopter flight for collision avoidance with static front facing LiDAR sensor
Creators: name: Temper, Alexander
Publisher: name: TU Wien
Year: 2021
Subjects: subject: Quadcopter
subject: LiDAR
subject: Kollisionsvermeidung
subject: BMF055
subject: Rotationsflug
subject: SITL
subject: Simulation
subject: Flight Controller
subject: Quadcopter
subject: LiDAR
subject: Collision Avoidance
subject: BMF055
subject: Rotational Flight
subject: SITL
subject: Simulation
subject: Flight Controller

description: Autonomes Fliegen erfordert immer auch Kollisionsvermeidung, um Schäden am Quadcopter und seiner Umgebung zu vermeiden. In dieser Arbeit wird ein Flugregler auf Basis des BMF055 entwickelt, der den grundlegenden Flugbetrieb des Quadcopters übernimmt. Für zukünftige Arbeiten und besseres Debugging unterstützt der Flugregler auch software in the loop und kann mit einer Simulation (wie gazebo) verbunden werden. Die Kollisionsvermeidung basierend auf dem Rotationsflug und einem nach vorne gerichteten Lidarsensor welcher auf einem separaten Controller entwickelt wurde, um die Einschränkungen des BMF055 zu umgehen. Dieser dezentrale Ansatz ermöglicht es zukünftigen Arbeiten, den BMF055 als Ganzes zu ersetzen. Weiters wird ein Test-Quadcopter entwickelt, um die vorgeschlagene Kollisionsvermeidung in der realen Welt zu bewerten. Die Tests in der Simulationsumgebung und am Prototyp des Quadcopters zeigten, dass aufgrund der Begrenzung der Rotationsgeschwindigkeit des Quadcopters und der Abtastrate von nur einem Sensor eine sichere Kollisionsvermeidung nicht möglich ist. Mit einem Sensor in jede Richtung und einer Rotationsgeschwindigkeit von 180 Grad/s konnte der Quadrocopter die meisten Kollisionen vermeiden, aber nicht zuverlässig genug für ein Kollisionsvermeidungssystem.
description: Autonomous flight always requires also collision avoidance to avoid damage of the quadcopter and the environment it operates. In this work a flight controller based on the BMF055 is developed handling the basic flight operation of the quadcopter. For future work and better debugging the flight controller also supports software in the loop and can be connected to a simulation (like gazebo).The collision avoidance based on the rotational flight and a front facing lidar sensor is developed on a separate controller to bypass the limitations of the BMF055. This Decentralized Approach enables future works to replace the BMF055 as whole. A test quadcopter is also developed to evaluate the proposed collision avoidance in the real world.The tests in the simulation environment and on the prototype quadcopter showed that one front facing sensor is not enough for a save collision avoidance due to the limitation in rotational speed of the quadcopter and the sampling rate of one front facing sensor. With a sensor in each direction and a rotation speed of 180 degree/s the quadcopter was able to avoid most collisions but not reliable enough for a collision avoidance system.
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title: The legal mechanism of public administration and regulation of the modern economy
Creators: name: Ð ÑÐ»ÑÐºÐµÐ²Ð¸Ñ, ÐÐºÐ°ÑÐµÑÐ¸Ð½Ð°
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
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Subjects: Ð¿ÑÐ°Ð²Ð¾
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Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½ÑÐ¹ Ð¼ÐµÑ Ð°Ð½Ð¸Ð·Ð¼ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ
ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ°
Ð¼ÐµÑÐ¾Ð´Ñ ÑÐµÐ³ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ
law
state
state management mechanism
economy
methods of regulation

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°Ð·Ð¾Ð±ÑÐ°Ð½ Ð¼ÐµÑÐ°Ð½Ð¸Ð·Ð¼ Ð¸ Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½ÑÑ Ð²Ð¾Ð·Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²Ð° Ð½Ð° ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÑ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÑ. Ð Ð°Ð·Ð±Ð¸ÑÐ°ÑÑÑÑ Ð°ÑÐ¿ÐµÐºÑÑ Ð¸ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐµ Ð¿Ð¾ÑÐ»ÐµÐ´ÑÑÐ²Ð¸Ñ Ð¿ÑÐ°Ð²Ð¾Ð²Ð¾Ð³Ð¾ ÑÐµÐ³ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ. ÐÐ·Ð»Ð°Ð³Ð°ÑÑÑÑ Ð¼ÐµÑÐ¾Ð´Ñ, ÑÐµÐ»Ð¸ Ð¸ Ð¿ÑÐ¸ÑÐ¸Ð½Ñ ÑÐ°ÐºÐ¾Ð³Ð¾ ÑÐ²Ð»ÐµÐ½Ð¸Ñ, ÐºÐ°Ðº Ð¿ÑÐ°Ð²Ð¾Ð²Ð¾Ðµ ÑÐµÐ³ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ¸. ÐÑÐ´ÐµÐ»ÑÑÑÑÑ Ð²Ð¸Ð´Ñ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸, Ð² ÐºÐ¾ÑÐ¾ÑÑÑ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²Ð¾ ÑÐµÐ°Ð»Ð¸Ð·ÑÐµÑ ÑÐ²Ð¾Ð¸ ÑÑÐ½ÐºÑÐ¸Ð¸ Ð¿Ð¾ Ð¿ÑÐ°Ð²Ð¾Ð²Ð¾Ð¼Ñ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¼Ñ ÑÐµÐ³ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ ÑÑÐ±ÑÐµÐºÑÑ, Ð½Ð° ÐºÐ¾ÑÐ¾ÑÑÐµ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²Ð¾ ÑÐ°ÑÐ¿ÑÐ¾ÑÑÑÐ°Ð½ÑÐµÑ ÑÐ²Ð¾Ñ Ð²Ð»Ð°ÑÑÑ Ð² ÑÐ°ÑÑÐ¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¸ ÐºÐ¾Ð¾ÑÐ´Ð¸Ð½Ð°ÑÐ¸Ð¸ Ð¸Ñ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸. ÐÑÐ¸Ð²ÐµÐ´ÐµÐ½Ð° Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ñ Ð¾ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²Ðµ ÐºÐ°Ðº ÑÑÐ±ÑÐµÐºÑÐµ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸. ÐÐ°ÑÑÐ¾ÑÑÐµÐ¹ Ð´Ð¸Ð¿Ð»Ð¾Ð¼Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐ¾Ð¹ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð° ÑÐ°ÑÑÑ Ð°ÐºÑÑÐ°Ð»ÑÐ½Ð¾Ð¹ Ð¸ Ð¿ÑÐ¸Ð¼ÐµÐ½ÑÐµÐ¼Ð¾Ð¹ Ð² Ð½Ð°ÑÑÐ¾ÑÑÐµÐµ Ð²ÑÐµÐ¼Ñ Ð½Ð¾ÑÐ¼Ð°ÑÐ¸Ð²Ð½Ð¾Ð¹ Ð¿ÑÐ°Ð²Ð¾Ð²Ð¾Ð¹ Ð±Ð°Ð·Ñ, ÑÐ²Ð»ÑÑÑÐµÐ¹ÑÑ ÑÐ¾ÑÑÐ°Ð²Ð»ÑÑÑÐµÐ¹ Ð¼ÐµÑÐ°Ð½Ð¸Ð·Ð¼Ð° Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¸ ÑÐµÐ³ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾Ð¹ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ¾Ð¹, Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ñ Ð¿ÑÑÐ¸ ÐµÐµ ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ñ.
description: In this paper, the mechanism and tools of the state's influence on the modern economy are analyzed. Aspects and various consequences of legal regulation are analyzed. The methods, goals and causes of such a phenomenon as legal regulation of the economy are described. There are types of economic activities in which the State implements its functions of legal economic regulation and subjects to which the State extends its authority in terms of managing and coordinating their activities. Information about the state as a subject of economic activity is provided. This thesis examines a part of the current and currently applicable regulatory framework, which is a component of the mechanism of state management and regulation of the modern economy, and suggests ways to improve it.
Molecular dynamics simulation of ion dynamics within SPEEK polymer electrolyte of PEM Fuel Cells
Creators: name: Awulachew, S. S.
name: Nigussa, K. N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Proton transport property is studied by modelling the intermolecular pair correlation functions of the proton ion with the electrode and the electrolyte of a polymer electrolyte fuel cell (PEMFC) by using Materials-Studio and then applying molecular dynamics simulation. A stable structure of the novel electrode design is obtained using density functional theory. When the polymer electrolyte is assumed as anhydrous, the efficiency of the proton transport increases. Analysis of the proton coordination numbers shows that more protons are found in the region of oxygen than sulfur atoms of the Sulfonic acid Ether Ester Ketone~(SEEK) electrolyte. The proton conductivity values are increased with including interaction effects from electrode compared to without. At a temperature of 333 K, these values of ion conductivity are $7.69 \times 10^{5} \hspace{1mm}\mathrm{S \hspace{1mm}cm^{-1}}$ and $4.28 \times 10^{5} \hspace{1mm}\mathrm{S \hspace{1mm}cm^{-1}}$, respectively, with and without. The network of the hydrogen bond is the path to transport of protons via the processes of hydrogen bond creating and breaking. The values of highest peaks in the radial distribution function ($g(r)$) calculations appear to fall in the hydrogen bond formation region. Thus, it looks that a combination of Pd$\rm_{3}$Ag as an electrode and unhydrated SEEK as an electrolyte could make up for a cost effective components of new design PEMFC.
Orbitally and Magnetically Induced Anisotropy in Iron-based Superconductors
Creators: name: Lv, Weicheng
name: Phillips, Philip
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recent experimental developments in the iron pnictides have unambiguously demonstrated the existence of in-plane electronic anisotropy in the absence of the long-range magnetic order. Such anisotropy can arise from orbital ordering, which is described by an energy splitting between the two otherwise degenerate $d_{xz}$ and $d_{yz}$ orbitals. By including this phenomenological orbital order into a five-orbital Hubbard model, we obtain the mean-field solutions where the magnetic order is determined self-consistently. Despite sensitivity of the resulting states to the input parameters, we find that a weak orbital order that places the $d_{yz}$ orbital slightly higher in energy than the $d_{xz}$ orbital, combined with intermediate on-site interactions, produces band dispersions that are compatible with the photoemission results. In this regime, the stripe antiferromagnetic order is further stabilized and the resistivity displays the observed anisotropy. We also calculate the optical conductivity and show that it agrees with the temperature evolution of the anisotropy seen experimentally.
description: 10 pages, 9 figures. published version. references added
A grid of synthetic spectra for the study of multiple populations on globular clusters
Creators: name: Branco, Vinicius
name: Coelho, Paula
name: Lançon, Ariane
Publisher: name: Zenodo
Year: 2021
Subjects: Globular Clusters
Stars
Multiple Populations
Chemical Abundances
Milky Way
Stellar Populations
Star Clusters
Stellar Astrophysics
Galactic Astrophysics
Extragalactic Astrophysics

description: This poster explores an application of the chemical abundance variations characteristic of multiple population phenomena in Galactic globular clusters in the integrated spectra. In particular, we have confirmed the results by previous work and expanded the metallicity and wavelength coverage of that study. Now, we will calibrate the atomic opacities to an extensive empirical low-metallicity star sample, aiming at building a reliable synthetic stellar spectra grid.
description: {"references": ["POPSYCLE, \"Population Synthesis for Clusters and Galaxies (supported by ANR-19-CE31-0022, France)\"", "V. Branco and P. Coelho, BAAA, vol. 61C, pp. 85, 2020.", "V. Branco, M.S. thesis, IAG/USP, doi:10.11606/D.14.2020.tde-15122020-164651, 2020.", "P. Coelho, S. M. Percival, and M. Salaris, ApJ, vol. 734, no. 1, p. 72, 2011.", "R. Kurucz, \\ATLAS12, SYNTHE, ATLAS9, WIDTH9, et cetera,\" MSAIt, 2005.", "A. Gonneau et al., A&A, vol. 634, A133, 2020."]}
Cosmological de Sitter Solutions of the Semiclassical Einstein Equation
Creators: name: Gottschalk, Hanno
name: Rothe, Nicolai
name: Siemssen, Daniel
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Exponentially expanding space-times play a central role in contemporary cosmology, most importantly in the theory of inflation and in the Dark Energy driven expansion in the late universe. In this work, we give a complete list of de Sitter solutions of the semiclassical Einstein equation (SCE), where classical gravity is coupled to the expected value of a renormalized stress-energy tensor of a free quantum field in the Bunch-Davies state. To achieve this, we explicitly determine the stress-energy tensor associated with the Bunch-Davies state using the recently proposed `moment approach' on the cosmological coordinate patch of de Sitter space. From the energy component of the SCE we thus obtain an analytic consistency equation for the model's parameters which has to be fulfilled by solutions to the SCE. Using this equation we then investigate the number of solutions and the structure of the solution set in dependency on the coupling parameter of the quantum field to the scalar curvature and renormalization constants using analytic arguments in combination with numerical evidence. We also identify parameter sets where multiple expansion rates separated by several orders of magnitude are possible. Potentially for such parameter settings, a fast (semi-stable) expansion in the early universe could be compatible with a late time `Dark Energy-like' behavior of the universe.
description: 82 pages, 12 figures, 2 tables
Le regole in guerra: acquisizione di obbiettivi didattici, di competenze trasversali e di tematiche di formazione generale tramite l'uso del game-based learning
Creators: name: Frigerio, Luca
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2022
Subjects: gioco di ruolo
pensiero critico
regole in guerra
immedesimazione
Diritto internazionale Umanitario
Croce Rossa
soldati

description: In questo lavoro di diploma è stato implementato un approccio sperimentale dove è stato comparata l’efficacia di un percorso laboratoriale rispetto ad uno tradizionale. L’argomento di tale percorso riguarda il diritto Internazionale Umanitario (D.I.U) e le regole in guerra. Il percorso tradizionale riguarda un’introduzione ed una lezione teorica sulla tematica. Il percorso laboratoriale invece si rifà ad attività di ruolo derivanti dai manuali della croce rossa Svizzera ed Italiana. Per valutare l’acquisizione delle competenze, il raggiungimento di obiettivi conoscitivi e interesse o meno verso l’attività proposta sono stati somministrati dei questionari pre-test e post-test, quindi prima e dopo lo svolgimento dell’attività. I risultati raccolti permettono di concludere che è possibile raggiungere obbiettivi disciplinari e non solo grazie ad un gioco di ruolo che ha permesso di svolgere l’attività didattica in prima persona. Inoltre, si riesce a lavorare sullo sviluppo di competenze, in particolare, sul pensiero critico e riflessivo. Gli studenti hanno inoltre apprezzato il fatto di essere riusciti a comprendere meglio una situazione complessa grazie all’attività di ruolo ed hanno avuto l’occasione di capire il punto di vista degli altri. Questa tipologia di attività risulta difficile da attuare di frequente ma, nonostante ciò, i vantaggi che si possono osservare suggeriscono che un loro utilizzo debba essere enfatizzato quando possibile. Relatore: Masiar Babazadeh.
Conservation Laws Invariant for Galileo Group; Cemracs Preliminary results
Creators: name: Dubois, François
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We propose a notion of hyperbolic system of conservation laws invariant for the Galileo group of transformations. We show that with natural physical and mathematical hypotheses, such a system conducts to the gas dynamics equations or to exotic systems that are detailed in this contribution to Cemracs 99.
description: 42 pages
Vacua of N=10 three dimensional gauged supergravity
Creators: name: Chatrabhuti, Auttakit
name: Karndumri, Parinya
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study scalar potentials and the corresponding vacua of N=10 three dimensional gauged supergravity. The theory contains 32 scalar fields parametrizing the exceptional coset space $\frac{E_{6(-14)}}{SO(10)\times U(1)}$. The admissible gauge groups considered in this work involve both compact and non-compact gauge groups which are maximal subgroups of $SO(10)\times U(1)$ and $E_{6(-14)}$, respectively. These gauge groups are given by $SO(p)\times SO(10-p)\times U(1)$ for $p=6,...10$, $SO(5)\times SO(5)$, $SU(4,2)\times SU(2)$, $G_{2(-14)}\times SU(2,1)$ and $F_{4(-20)}$. We find many AdS$_3$ critical points with various unbroken gauge symmetries. The relevant background isometries associated to the maximally supersymmetric critical points at which all scalars vanish are also given. These correspond to the superconformal symmetries of the dual conformal field theories in two dimensions.
description: 37 pages no figures, typos corrected and a little change in the format
title: ÐÐ²ÑÐ¾ÑÑÐ°ÐºÑÐ¾ÑÐ½ÑÐ¹ Ð´Ð¸Ð·ÐµÐ»ÑÐ½ÑÐ¹ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ 300 ÐºÐÑ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Automotive diesel engine capacity of 300 kW
Creators: name: Ð§ÑÐ´Ð¾ÑÐ²Ð¾ÑÐ¾Ð², ÐÑÑÑÐ¼
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: 2019
Subjects: Ð°Ð²ÑÐ¾ÑÑÐ°ÐºÑÐ¾ÑÐ½ÑÐµ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ð¸
Ð´Ð¸Ð·ÐµÐ»ÑÐ½ÑÐµ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ð¸
Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ð¸ Ð²Ð½ÑÑÑÐµÐ½Ð½ÐµÐ³Ð¾ ÑÐ³Ð¾ÑÐ°Ð½Ð¸Ñ
motor-tractor engines
diesel engines
internal combustion engines

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐµ Ð°Ð²ÑÐ¾ÑÑÐ°ÐºÑÐ¾ÑÐ½Ð¾Ð³Ð¾ Ð´Ð¸Ð·ÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ñ Ð²Ð½ÑÑÑÐµÐ½Ð½ÐµÐ³Ð¾ ÑÐ³Ð¾ÑÐ°Ð½Ð¸Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ 300 ÐºÐÑ. Ð ÑÐ¾Ð´Ðµ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ ÑÐ°Ð±Ð¾ÑÑ ÑÐ°ÑÑÑÐ¸ÑÐ°Ð½Ñ: ÑÐ°Ð±Ð¾ÑÐ¸Ð¹ Ð¿ÑÐ¾ÑÐµÑÑ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ñ Ð¿Ð¾ Ð¼ÐµÑÐ¾Ð´Ñ ÐÑÐ¸Ð½ÐµÐ²ÐµÑÐºÐ¾Ð³Ð¾-ÐÐ°Ð·Ð¸Ð½Ð³Ð°, ÑÐ¸Ð»Ñ Ð¸ Ð¼Ð¾Ð¼ÐµÐ½ÑÑ, Ð²Ð¾Ð·Ð½Ð¸ÐºÐ°ÑÑÐ¸Ðµ Ð² ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ°Ñ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ñ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÑÐ°Ð²Ð½Ð¾Ð²ÐµÑÐµÐ½Ð½Ð¾ÑÑÐ¸ Ð¸ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ñ ÑÐ°ÑÑÐµÑÑ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ¸ ÐºÐ¾Ð»ÐµÐ½ÑÐ°ÑÐ¾Ð³Ð¾ Ð²Ð°Ð»Ð°, ÑÐ°ÑÑÐ½Ð° Ð¸ Ð¿Ð¾ÑÑÐ½ÐµÐ²Ð¾Ð³Ð¾ Ð¿Ð°Ð»ÑÑÐ° Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ñ. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¸ ÑÐ°ÑÑÐµÑÐ¾Ð² ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ Ð¿ÑÐ¾Ð´Ð¾Ð»ÑÐ½ÑÐ¹ Ð¸ Ð¿Ð¾Ð¿ÐµÑÐµÑÐ½ÑÐ¹ ÑÐ°Ð·ÑÐµÐ·Ñ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ñ.
description: This work is devoted to the development of automotive diesel internal combustion engine capacity of 300 kW. In this work calculated: the working process of the engine according to the method Grinevetsky-Masing, the forces and moments arising in the elements of the engine and balance analysis. Also made the analysis of the strength of the crankshaft, piston-rod and piston pin. On the basis of calculations designed longitudinal and cross plans of the engine.
Initial fluctuation effect on harmonic flow in high-energy heavy-ion collisions
Creators: name: Han, L. X.
name: Ma, G. L.
name: Ma, Y. G.
name: Cai, X. Z.
name: Chen, J. H.
name: Zhang, S.
name: Zhong, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Within the framework of a multi-phase transport model, harmonic flows $v_n$ (n = 2, 3 and 4) are investigated for Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV and Pb + Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV. The event-by-event geometry fluctuations significantly contribute to harmonic flows. Triangular flow ($v_3$) originates from initial triangularity ($ε_3$) and is developed by partonic interactions. The conversion efficiency ($v_n/ε_n$) decreases with harmonic order and increases with partonic interaction cross section. A mass ordering in the low $p_T$ region and number of constitute quark scaling in the middle $p_T$ region seem to work roughly for $n$-th harmonic flows at both energies. All features of harmonic flows show similar qualitative behaviors at RHIC and LHC energies, which implies that the formed partonic matters are similar at the two energies.
description: 10 pages, 15 figures
Additional file 3 of FLA14 is required for pollen development and preventing premature pollen germination under high humidity in Arabidopsis
Creators: name: Miao, Yingjing
name: Cao, Jiashu
name: Huang, Li
name: Yu, Youjian
name: Lin, Sue
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: