cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The generation of connected high and very high energy $γ$-rays and radio emission in active galactic nuclei
Creators: name: Osmanov, Z.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We consider relativistic electrons in magnetospheric flows close to a supermassive black hole and study the mechanism of quasi-linear diffusion (QLD) to investigate the correlation between $γ$-ray and radio emission in active galactic nuclei. Moving in the nonuniform magnetic field the particles experience a force that is responsible for the conservation of the adiabatic invariant. This force, together with the radiation reaction force, tends to decrease the pitch angles. Contrary to this, the QLD attempts to increase the pitch angle, and this maintains the synchrotron emission regime. To examine the balance between the QLD and the aforementioned dissipative factors we investigate the quasi-stationary state by applying the kinetic equation. Considering the magnetospheric plasma close to the supermassive black hole, we examined the efficiency of the QLD for different parameters. By examining the cyclotron instability, we show that despite the efficient dissipative factors, the cyclotron modes excite transverse and longitudinal-transversal waves which leads to the QLD. We find that the QLD provides a connection of emission in the $γ$-ray and radio domains. We show that under favourable conditions the radio emission from 22 MHz to 9 GHz on the mpc scale is associated with $γ$-ray emission from 900 GeV down to 9 GeV on the same scale.
description: 5 pages, 5 figures
The effect of layer number and substrate on the stability of graphene under MeV proton beam irradiation
Creators: name: Mathew, S.
name: Chan, T. K.
name: Zhan, D.
name: Gopinadhan, K.
name: Barman, A. R.
name: Breese, M. B. H.
name: Dhar, S.
name: Shen, Z. X.
name: Venkatesan, T.
name: Thong, John TL
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The use of graphene electronics in space will depend on the radiation hardness of graphene. The damage threshold of graphene samples, subjected to 2 MeV proton irradiation, was found to increase with layer number and also when the graphene layer was supported by a substrate. The thermal properties of graphene as a function of the number of layers or as influenced by the substrate argue against a thermal model for the production of damage by the ion beam. We propose a model of intense electronically-stimulated surface desorption of the atoms as the most likely process for this damage mechanism.
description: 20 pages, 5 figures
Dimensionally-dependent uncertainty relations, or why we (probably) won't see micro-black holes at the LHC, even if large extra dimensions exist
Creators: name: Lake, Matthew J.
name: Liang, Shi-Dong
name: Watcharapasorn, Anucha
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a simple gedanken experiment in which a compact object traverses a spacetime with three macroscopic spatial dimensions and $n$ compact dimensions. The compactification radius is allowed to vary, as a function of the object's position in the four-dimensional space, and we show that the conservation of gravitational self-energy implies the dimensional dependence of the mass-radius relation. In spacetimes with extra dimensions that are compactified at the Planck scale, no deviation from the four-dimensional result is found, but, in spacetimes with extra dimensions that are much larger than the Planck length, energy conservation implies a deviation from the normal Compton wavelength formula. The new relation restores the symmetry between the Compton wavelength and Schwarzschild radius lines on the mass-radius diagram and precludes the formation of black holes at TeV scales, even if large extra dimensions exist. We show how this follows, intuitively, as a direct consequence of the increased gravitational field strength at distances below the compactification scale. Combining these results with the heuristic identification between the Compton wavelength and the minimum value of the position uncertainty, due to the Heisenberg uncertainty principle, suggests the existence of generalised, higher-dimensional uncertainty relations. These relations may be expected to hold for self-gravitating quantum wave packets, in higher-dimensional spacetimes, with interesting implications for particle physics and cosmology in extra-dimensional scenarios.
description: 14 pages, 2 figures. Matches the final version published in Frontiers in Astronomy and Space Sciences, incorporating the contents of the Corrigendum. Minor typos have also been fixed
Non-relativistic Gravity in Entropic Quantum Dynamics
Creators: name: Johnson, David T.
name: Caticha, Ariel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Symmetries and transformations are explored in the framework of entropic quantum dynamics. Two conditions arise that are required for any transformation to qualify as a symmetry. The heart of this work lies in the application of these conditions to the extended Galilean transformation, which admits features of both special and general relativity. The effective gravitational potential that arises in a non-inertial frame through the strong equivalence principle arises naturally through an equivalence of information.
description: Presented at MaxEnt 2010, the 30th International Workshop on Bayesian Inference and Maximum Entropy Methods in Science and Engineering (July 4-9, 2010, Chamonix, France)
Additional file 1 of Radial BMD and serum CTX-I can predict the progression of carotid plaque in rheumatoid arthritis: a 3-year prospective cohort study
Creators: name: Han, Seungwoo
name: Kim, Na-Ri
name: Kang, Jong-Wan
name: Eun, Jung-Su
name: Kang, Young-Mo
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Hematology
subject: 60506 Virology

description: Additional file 1: Supplementary Figure S1. Forest plot showing the odds ratio for risk of the progression of carotid plaque. Supplementary Figure S2. RA disease activity at baseline and changes in mean carotid IMT. Supplementary Table S1. Disease activity and the progression of carotid plaque in RA patients
Nonparametric sequential prediction for stationary processes
Creators: name: Morvai, Gusztáv
name: Weiss, Benjamin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We study the problem of finding an universal estimation scheme $h_n:\mathbb{R}^n\to \mathbb{R}$, $n=1,2,...$ which will satisfy \lim_{t\rightarrow\infty}{\frac{1}{t}}\sum_{i=1}^t|h_ i(X_0,X_1,...,X_{i-1})-E(X_i|X_0,X_1,...,X_{i-1})|^p=0 a.s. for all real valued stationary and ergodic processes that are in $L^p$. We will construct a single such scheme for all $1
description: Published in at http://dx.doi.org/10.1214/10-AOP576 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Exploring the possible evolution of the mass density power-law index of strong gravitational lenses with a model-independent method
Creators: name: Hu, Jian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this work, we adopt a cosmological model-independent approach for the first time to test the question of whether the mass density power-law index($γ$) of the strong gravitational lensing system(SGLS) evolves with redshift, and the JLA SNe Ia sample and the quasar sample from Risaliti \& Lusso (2019) are used to provide the luminosity distances to be calibrated. Our work is based on the flat universe assumption and the cosmic distance duality relation. A reliable data-matching method is used to pair SGLS-SNe and SGLS-quasar. By using the maximum likelihood method to constrain the luminosity distance and $γ$ index, we obtain the likelihood function values for the evolved and non-evolved cases, and then use the Akaike weights and the BIC selection weights to compare the advantages and disadvantages of these two cases. We find that the $γ$ index is slightly more likely to be a non-evolutionary model for $γ=2$ in the case of the currently used samples with low redshift ($z_l<\sim$0.66). With Akaike weights, the relative probability is 66.3\% versus 33.7\% and 69.9\% versus 30.1\% for the SGLS+SNe Ia sample and SGLS+quasar sample, respectively, and with BIC selection weights, the relative probability is 87.4\% versus 12.6\% and 52.0\% versus 48.0\% for the two samples. In the evolving case for the relatively low redshift lens (SGLS+SNe Ia), with redshift 0.0625 to 0.659, $γ= 2.058^{+0.041}_{-0.040}-0.136^{+0.163}_{-0.165}z$. At high redshift (SGLS+quasar ), with redshift 0.0625 to 1.004, $γ= 2.051^{+0.076}_{-0.077}-0.171^{+0.214}_{-0.196}z$. Although not the more likely model, this evolved $γ$ case also fits the data well, with a negative and mild evolution for both low and high redshift samples.
description: 9 pages, 7 figures
Il diario ortografico: un viaggio per costruire le regole ortografiche con l'approccio induttivo in seconda elementare
Creators: name: Soregaroli, Giulia
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2023
Subjects: approccio induttivo
sfondo motivazionale
diario ortografico
regole ortografiche
consapevolezza

description: La ricerca vuole indagare la capacità di bambine e bambini di seconda elementare di comprendere in modo induttivo e poi esplicitare le regole sottese ad alcuni fenomeni ortografici (l’uso delle doppie, il caso di -c, -q, -cq, i digrammi e i trigrammi -gn, -gl/-gli, -sc/-sci, l’uso della h). Dal momento che tra i traguardi inseriti nel Piano di studio perfezionato della scuola dell’obbligo ticinese (DECS, 2022) compare l’acquisizione della correttezza ortografica di base, si è deciso di condurre una ricerca di tipo qualitativo per osservare l’eventuale evoluzione di allievi di seconda elementare nella comprensione e nell’esplicitazione delle regole ortografiche. Il campione preso come riferimento è una classe di seconda elementare composta da 17 allievi, con i quali è stato svolto l’itinerario utilizzando un approccio di tipo induttivo e con uno sfondo motivazionale per aumentare il livello di coinvolgimento. Con la classe è stato realizzato un diario ortografico contenente le regole ortografiche spiegate e formulate dai bambini stessi, e tutte le attività svolte per giungere alla scoperta di tali regole. Non sono mancate le letture degli albi illustrati, che hanno motivato ancora di più allieve e allievi, e l’allestimento di postazioni e giochi ortografici che hanno favorito il consolidamento dei concetti scoperti, da riattivare, poi, in contesti comunicativi funzionali. Relatrice: Silvia Demartini.
“It’s a very careful line we walk” : how educators resist, navigate, and make sense of the queer, trans necropolitical landscape of elementary education
Creators: name: Paterson, Kathryn
Publisher: name: University of British Columbia
Year: 2021

description: This dissertation explores how elementary educators in Alberta, Canada make sense of and engage with queer, trans, and gender non-conforming diversity in elementary education, and how those understandings inform their pedagogy and practices. Contextualized within Alberta’s political conservatism, this research consists of a policy analysis of Alberta Education’s Guidelines for Best Practices and 12 school district policies, 14 interviews with elementary educators and two group discussions. This dissertation makes a critical contribution to the field by exploring how elementary education is shaped by necropolitical regimes of normativity that bestow privilege and support to some queer and trans kids, while increasing vulnerability and precarity for others. By focusing on discursive practices, this research explores why current government and school district policies, professional development, administrative interventions, and classroom strategies for queer and trans “inclusion” are insufficient. Findings underscore the limitations of an individualized, reactive, “accommodation approach” to change in schools that does little to confront larger, systemic issues in Canada’s public education system. Highlighting the workings of white settler colonialism, cisnormativity, heteronormativity, and neoliberalism, this research discusses how even supportive and knowledgeable educators often perpetuate harmful discourses despite their best intentions. Educators’ stories reveal the pressures, risks, and responsibilities they face as they navigate institutional constraints that are not conducive to implementing queer, trans, and gender diversity into the classroom and school in meaningful ways. By critically examining the limitations of existing approaches to building “safe, inclusive, and welcoming schools,” this research aims to contribute to a better schooling future for queer and trans students in Alberta, thereby improving conditions for all students.
Kaon fragmentation function from NJL-jet model
Creators: name: Matevosyan, Hrayr H.
name: Thomas, Anthony W.
name: Bentz, Wolfgang
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The NJL-jet model provides a sound framework for calculating the fragmentation func- tions in an effective chiral quark theory, where the momentum and isospin sum rules are satisfied without the introduction of ad hoc parameters [1]. Earlier studies of the pion fragmentation func- tions using the Nambu-Jona-Lasinio (NJL) model within this framework showed good qualitative agreement with the empirical parameterizations. Here we extend the NJL-jet model by including the strange quark. The corrections to the pion fragmentation function and corresponding kaon fragmen- tation functions are calculated using the elementary quark to quark-meson fragmentation functions from NJL. The results for the kaon fragmentation function exhibit a qualitative agreement with the empirical parameterizations, while the unfavored strange quark fragmentation to pions is shown to be of the same order of magnitude as the unfavored light quark's. The results of these studies are expected to provide important guidance for the analysis of a large variety of semi-inclusive data.
description: 6 pages, 9 figures, Proceedings of "Achievements and New Directions in Subatomic Physics: Workshop in Honour of Tony Thomas's 60th Birthday"
Additional file 1 of Overexpression of NELFE contributes to gastric cancer progression via Wnt/β-catenin signaling-mediated activation of CSNK2B expression
Creators: name: Yu, Shijun
name: Li, Li
name: Cai, Hui
name: He, Bin
name: Gao, Yong
name: Li, Yandong
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 1: Supplementary Table 1. Primer sequences for qRT-PCR analysis.
Sistema elettronico per la determinazione del volume massimo di ossigeno (VO2max)
Creators: name: Mazzolini, Francesco
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2021

description: Il progetto consiste nel realizzare un sistema elettronico per la stima del volume massimo di ossigeno, VO2max, che un individuo è capace di metabolizzare per unità di tempo e massa corporea. Il target principale sono le persone che presentano sintomi a lungo termine dopo l’infezione da malattie respiratorie come Covid-19. Il sistema fa eseguire al paziente un test in cui deve camminare o correre su un percorso piano aumentando gradualmente la velocità. La cadenza di raggiungimento di marker posti lungo il percorso è indicata da segnali sonori emessi dai dispositivi indossabili alimentati a batteria ricaricabile. Durante il test i dispositivi misurano, tramite un sensore biometrico, la frequenza cardiaca e la saturazione del sangue e li inviano alla stazione base, un computer, che rappresenta i dati su un grafico temporale. Viene quindi progettato e realizzato su PCB un sistema embedded alimentato con batteria al litio, ricaricabile con un classico cavo USB-C sia da porta USB sia con trasformatore da muro per smartphone. Il microcontrollore, della famiglia low-power STM32L1, provvede alla produzione di suoni tramite lo speaker, alla raccolta ed elaborazione dei valori letti dal sensore biometrico MAX30102 e al loro salvataggio in locale su memoria EEPROM. I dati vengono inviati al PC tramite protocollo Bluetooth Low Energy, utilizzando il modulo HM-10 come ponte di comunicazione. Il software, realizzato in ambiente QT creator, implementa l’interfaccia grafica e permette il collegamento via Bluetooth del computer con i vari dispositivi. Un medico o assistente può quindi interagire con l’interfaccia grafica potendo modificare i parametri del test di ogni dispositivo, visualizzarne le informazioni come stato e livello di batteria, ed effettuare valutazioni sui valori biometrici raccolti e rappresentati sui grafici. Il volume massimo di ossigeno può essere calcolato a partire dalla velocità massima raggiunta, oppure alla velocità oltre la quale il battito cardiaco comincia ad accelerare più lentamente.
When is a DAO Decentralized?
Creators: name: Axelsen, Henrik
name: Jensen, Johannes Rude
name: Ross, Omri
Publisher: name: arXiv
Year: 2023
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: While previously a nascent theoretical construct, decentralized autonomous organizations have grown rapidly in recent years. DAOs typically emerge around the management of decentralized financial applications and thus benefit from the rapid growth of innovation in this sector. In response, global regulators increasingly voice the intent to regulate these activities. This may impose an excessive compliance burden on DAOs, unless they are deemed sufficiently decentralized to be regulated. Yet, decentralization is an abstract concept with scarce legal precedence. We investigate dimensions of decentralization through thematic analysis, combining extant literature with a series of expert interviews. We propose a definition of 'sufficient decentralization' and present a general framework for the assessment of decentralization. We derive five dimensions for the assessment of decentralization in DAOs: Token-weighted voting, Infrastructure, Governance, Escalation and Reputation. We present a discretionary sample application of the framework and five propositions on the future regulation and supervision of DAOs. We contribute new practical insights on the topic of compliance and decentralized organizations to the growing discourse on the application of blockchain technology in information systems and management disciplines
Polarization dependence of coherent phonon generation and detection in highly-aligned single-walled carbon nanotubes
Creators: name: Booshehri, L. G.
name: Pint, C. L.
name: Sanders, G. D.
name: Ren, L.
name: Sun, C.
name: Haroz, E. H.
name: Kim, J. -H.
name: Yee, K. -J.
name: Lim, Y. -S.
name: Hauge, R. H.
name: Stanton, C. J.
name: Kono, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have investigated the polarization dependence of the generation and detection of radial breathing mode (RBM) coherent phonons (CP) in highly-aligned single-walled carbon nanotubes. Using polarization-dependent pump-probe differential-transmission spectroscopy, we measured RBM CPs as a function of angle for two different geometries. In Type I geometry, the pump and probe polarizations were fixed, and the sample orientation was rotated, whereas, in Type II geometry, the probe polarization and sample orientation were fixed, and the pump polarization was rotated. In both geometries, we observed a very nearly complete quenching of the RBM CPs when the pump polarization was perpendicular to the nanotubes. For both Type I and II geometries, we have developed a microscopic theoretical model to simulate CP generation and detection as a function of polarization angle and found that the CP signal decreases as the angle goes from 0 degrees (parallel to the tube) to 90 degrees (perpendicular to the tube). We compare theory with experiment in detail for RBM CPs created by pumping at the E44 optical transition in an ensemble of single-walled carbon nanotubes with a diameter distribution centered around 3 nm, taking into account realistic band structure and imperfect nanotube alignment in the sample.
Flexible Test Bench
Creators: name: Fiorini, Riccardo
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2023

description: Nel laboratorio di "Sistemi microtecnici di precisione" vi è necessità di un dispositivo utile per ogni tipo di progetto, semplificando così il lavoro e dando un riscontro in tempo reale al ricercatore. Il dispositivo deve adattarsi ad ogni esigenza ed essere semplice da utilizzare. Per facilitare l’interazione con l’utente si è scelto di sviluppare la visualizzazione su un display touch di 10.1 pollici, di predisporre anche elementi fisici quali switch ed encoder quando non vi è la possibilità di premere sul display, ad esempio con l’utilizzo di guanti spessi. Per essere il più versatile possibile si è deciso di sviluppare un dispositivo con una scheda principale (master) e delle schede secondarie (slave) che svolgono funzionalità specifiche.
Pathology of neonatal sepsis : discriminating survival and identifying new therapeutic targets
Creators: name: Harbeson, Daniel Joseph
Publisher: name: University of British Columbia
Year: 2021

description: The global mortality rate in the neonatal period is far greater than in any other time in childhood. Sepsis is one of the most significant causes of neonatal death worldwide and therefore represents a critical research target moving forward. There is an urgent need for pathogen-agnostic prophylactics and interventions to prevent and treat neonatal sepsis, but the development of these has been slow and ineffective due to a fundamental knowledge-gap surrounding the pathology of the disease. Here we first developed a method for classifying cecal slurry challenged mouse pups into likely survivors or likely non-survivors to identify why some pups survive the sepsis model and others do not. We then examined the transcriptomes of likely survivors and likely non-survivors and identified arachidonic acid metabolism as key point of differentiation between the two groups. We validated these findings by showing the administration of exogenous arachidonic acid prior to challenge significantly improved survival its protective effect was ultimately due to improvements in vascular endothelial integrity via interactions with the angiopoietin-TIE2 axis. Combinatorial treatment of exogenous angiopoietin-1 and L-Arginine significantly reduced mortality and represents a promising new intervention moving forward.
Galactic astroarchaeology: reconstructing the bulge history by means of the newest data
Creators: name: Cescutti, Gabriele
name: Matteucci, Francesca
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The chemical abundances measured in stars of the Galactic bulge offer an unique opportunity to test galaxy formation models as well as impose strong constraints on the history of star formation and stellar nucleosynthesis. The aims of this paper are to compare abundance predictions from a detailed chemical evolution model for the bulge with the newest data. Some of the predictions have already appeared on previous paper (O, Mg, Si, S and Ca) but some other predictions are new (Ba, Cr and Ti). We compute several chemical evolution models by adopting different initial mass functions for the Galactic bulge and then compare the results to new data including both giants and dwarf stars in the bulge. In this way we can impose strong constraints on the star formation history of the bulge. We find that in order to reproduce at best the metallicity distribution function one should assume a flat IMF for the bulge not steeper than the Salpeter one. The initial mass function derived for the solar vicinity provides instead a very poor fit to the data. The [el/Fe] vs. [Fe/H] relations in the bulge are well reproduced by a very intense star formation rate and a flat IMF as in the case of the stellar metallicity distribution. Our model predicts that the bulge formed very quickly with the majority of stars formed inside the first 0.5 Gyr. Our results strongly suggest that the new data, and in particular the MDF of the bulge, confirm what concluded before and in particular that the bulge formed very fast, from gas shed by the halo, and that the initial mass function was flatter than in the solar vicinity and in the disk, although not so flat as previously thought. Finally, our model can also reproduce the decrease of the [O/Mg] ratio for [Mg/H] > 0 in the bulge, which is confirmed by the new data and interpreted as due to mass loss in massive stars.
description: 6 pages, 4 figures, accepted for publication in A&A
Additional file 1 of A new Hendra virus genotype found in Australian flying foxes
Creators: name: Wang, Jianning
name: Anderson, Danielle E.
name: Halpin, Kim
name: Hong, Xiao
name: Chen, Honglei
name: Walker, Som
name: Valdeter, Stacey
name: van der Heide, Brenda
name: Neave, Matthew J.
name: Bingham, John
name: O’Brien, Dwane
name: Eagles, Debbie
name: Wang, Lin-Fa
name: Williams, David T.
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1. Table S1: Hybridization probes designed based on HeV and NiV genome sequences. Table S2: Hybridization probes set-2 which is a combination of set-1 and HeV-G2 sequences. Table S3: Details of all flying foxes tested in this study, including year and month of collection, species, location, ABLV and HeV-g2 results (positive results are highlighted in grey) and the suspected cause of death. Figure S1: Alignment of HeV-g2 M gene sequences amplified by PCR. Figure S2: Maximum likelihood phylogenetic tree of 568 bp of the glycoprotein G gene nucleotide sequences.
Transverse Lambda polarization at high energy colliders
Creators: name: Boer, Daniel
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Measurements of transverse polarization of Lambda hyperons produced in high energy pp collisions may help to address several open issues about Lambda production and polarization mechanisms, such as the amount of SU(3) breaking, the importance of gluons and sea quarks, and the origin of spontaneous Lambda polarization. The process p + p -> Lambda^\uparrow + jet + X at midrapidity is ideally suited for this purpose, for instance at LHC's ALICE experiment. New expressions and predictions are presented for the transverse Lambda polarization in this process, within a factorized description which involves transverse momentum and spin dependence in the fragmentation process. Uncertainties from the unpolarized Lambda fragmentation functions, due to the unknown magnitude of SU(3) breaking and the apparent inconsistency between pp and e^+ e^- data, are investigated.
description: 5 pages, 5 eps figures, uses PoS.cls, talk presented at the XVIII International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2010), Firenze, Italy, April 19-23, 2010
First-principles calculation of x-ray dichroic spectra within the full-potential linearized augmented planewave method: An implementation into the Wien2k code
Creators: name: Pardini, Lorenzo
name: Bellini, Valerio
name: Manghi, Franca
name: Ambrosch-Draxl, Claudia
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: X-ray absorption and its dependence on the polarization of light is a powerful tool to investigate the orbital and spin moments of magnetic materials and their orientation relative to crystalline axes. Here, we present a program for the calculation of dichroic spectra from first principles. We have implemented the calculation of x-ray absorption spectra for left and right circularly polarized light into the Wien2k code. In this package, spin-density functional theory is applied in an all-electron scheme that allows to describe both core and valence electrons on the same footing. The matrix elements, which define the dependence of the photo absorption cross section on the polarization of light and on the sample magnetization, are computed within the dipole approximation. Results are presented for the L2,3 and M4,5 egdes of CeFe2 and compared to experiments.
Study of S, Cl and Ar isotopes with $N \geq Z$ using microscopic effective $sd$-shell interactions
Creators: name: Choudhary, Priyanka
name: Srivastava, Praveen C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In the present work, newly developed microscopic effective $sd$-valence shell interactions such as chiral next-to-next-to-next-to-leading order (N3LO), $J$-matrix inverse scattering potential (JISP16), Daejeon16 (DJ16), and monopole-modified DJ16 (DJ16A) are employed to study the nuclear structural properties of sulphur, chlorine, and argon isotopes with $N \geq Z$. These interactions are derived using the \textit{ab initio} no-core shell-model and the OLS unitary transformation method. We calculate energy spectra and electromagnetic properties to test the predictive strength of the effective interactions for these heavier $sd$-shell nuclei. For a complete systematic study, we compare the microscopic results with the phenomenological USDB results and experimental data. By looking at the excitation energies of these nuclei, the DJ16A interaction is found to be {the} most suitable for these $sd$-shell nuclei among all microscopic interactions. The electric quadrupole transition strength and excitation energy of the first $2^+$ state data of even-even sulphur isotopes indicate the presence of the $N=20$ shell closure. Quadrupole moment predictions are also made using these interactions where experimental data are unknown. Magnetic moments are in excellent agreement with the experimental values. The root-mean-square deviations are also calculated to provide an idea of how accurate the interactions are.
description: 14 pages, 7 figures, The European Physical Journal A-Hadrons and Nuclei (accepted)
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titleType: Subtitle
title: Analysis and testing of a pseudofunction model for calculating two-phase filtration of oil saturated with gas
Creators: name: ÐÐ¾ÑÐ±ÑÑÐ¸Ð½, ÐÐµÐ¾Ð½Ð¸Ð´
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: 2021
Subjects: Ð¤Ð¸Ð»ÑÑÑÐ°ÑÐ¸Ñ
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ÑÐ¸Ð»ÑÑÑÐ°ÑÐ¸Ñ Ð´Ð²ÑÑ ÑÐ°Ð·Ð½Ð¾Ð³Ð¾ ÑÐ»ÑÐ¸Ð´Ð°
Ð¿ÑÐµÐ²Ð´Ð¾ÑÑÐ½ÐºÑÐ¸Ð¸
ÐºÐ°ÑÑÑ Ð¸Ð·Ð¾Ð±Ð°Ñ
Ð¼ÐµÑÐ¾Ð´ Ð³ÑÐ°Ð½Ð¸ÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð²
Ð½ÐµÑÑÐ°ÑÐ¸Ð¾Ð½Ð°ÑÐ½ÑÐ¹ ÑÐµÐ¶Ð¸Ð¼ ÑÐ¸Ð»ÑÑÑÐ°ÑÐ¸Ð¸
two-phase fluid filtration
pseudofunctions
isobar maps
boundary element method
non-stationary filtration flow

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° ÑÐ°ÑÑÐ¸ÑÐµÐ½Ð¸Ñ ÑÑÐ½ÐºÑÐ¸Ð¾Ð½Ð°Ð»Ð° Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð½ÐµÑÑÐ°ÑÐ¸Ð¾Ð½Ð°ÑÐ½Ð¾Ð¹ Ð¾Ð´Ð½Ð¾ÑÐ°Ð·Ð½Ð¾Ð¹ ÑÐ¸Ð»ÑÑÑÐ°ÑÐ¸Ð¸ Ð½ÐµÑÑÐ¸ Ð² Ð¿Ð»Ð°ÑÑÐµ, Ð° Ð¸Ð¼ÐµÐ½Ð½Ð¾ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐµ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÐ¸ ÑÐ°ÑÑÑÑÐ° Ð´Ð²ÑÑÑÐ°Ð·Ð½Ð¾Ð¹ ÑÐ¸Ð»ÑÑÑÐ°ÑÐ¸Ð¸ Ð½ÐµÑÑÐ¸, Ð½Ð°ÑÑÑÐµÐ½Ð½Ð¾Ð¹ Ð³Ð°Ð·Ð¾Ð¼ Ð² Ð¿Ð»Ð°ÑÑÐµ, Ð¿ÑÑÑÐ¼ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¿ÑÐµÐ²Ð´Ð¾ÑÑÐ½ÐºÑÐ¸Ð¹, ÐµÑ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¸ ÑÐµÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ.
description: This work is devoted to expanding of the functionality of the model of unsteady single-phase filtration of oil in the reservoir, namely, the development of the possibility of calculating the two-phase filtration of oil saturated with gas in the reservoir by using the model of pseudofunctions, its analysis and testing.
A Linearized L1-Galerkin FEM for Non-smooth Solutions of Kirchhoff type Quasilinear Time-fractional Integro-differential Equation
Creators: name: Kumar, Lalit
name: Sista, Sivaji Ganesh
name: Sreenadh, Konijeti
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 34K30, 26A33, 65R10, 60K50

description: In this article, we study the semi discrete and fully discrete formulations for a Kirchhoff type quasilinear integro-differential equation involving time-fractional derivative of order $α\in (0,1) $. For the semi discrete formulation of the equation under consideration, we discretize the space domain using a conforming FEM and keep the time variable continuous. We modify the standard Ritz-Volterra projection operator to carry out error analysis for the semi discrete formulation of the considered equation. In general, solutions of the time-fractional partial differential equations (PDEs) have a weak singularity near time $t=0$. Taking this singularity into account, we develop a new linearized fully discrete numerical scheme for the considered equation on a graded mesh in time. We derive a priori bounds on the solution of this fully discrete numerical scheme using a new weighted $H^{1}(Ω)$ norm. We prove that the developed numerical scheme has an accuracy rate of $O(P^{-1}+N^{-(2-α)})$ in $L^{\infty}(0,T;L^{2}(Ω))$ as well as in $L^{\infty}(0,T;H^{1}_{0}(Ω))$, where $P$ and $N$ are degrees of freedom in the space and time directions respectively. The robustness and efficiency of the proposed numerical scheme are demonstrated by some numerical examples.
Afterglow Observations of Fermi-LAT Gamma-Ray Bursts and the Emerging Class of Hyper-Energetic Events
Creators: name: Cenko, S. B.
name: Frail, D. A.
name: Harrison, F. A.
name: Haislip, J. B.
name: Reichart, D. E.
name: Butler, N. R.
name: Cobb, B. E.
name: Cucchiara, A.
name: Berger, E.
name: Bloom, J. S.
name: Chandra, P.
name: Fox, D. B.
name: Perley, D. A.
name: Prochaska, J. X.
name: Filippenko, A. V.
name: Glazebrook, K.
name: Ivarsen, K. M.
name: Kasliwal, M. M.
name: Kulkarni, S. R.
name: LaCluyze, A. P.
name: Lopez, S.
name: Morgan, A. N.
name: Pettini, M.
name: Rana, V. R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present broadband (radio, optical, and X-ray) light curves and spectra of the afterglows of four long-duration gamma-ray bursts (GRBs 090323, 090328, 090902B, and 090926A) detected by the Gamma-Ray Burst Monitor (GBM) and Large Area Telescope (LAT) instruments on the Fermi satellite. With its wide spectral bandpass, extending to GeV energies, Fermi is sensitive to GRBs with very large isotropic energy releases (10e54 erg). Although rare, these events are particularly important for testing GRB central-engine models. When combined with spectroscopic redshifts, our afterglow data for these four events are able to constrain jet collimation angles, the density structure of the circumburst medium, and both the true radiated energy release and the kinetic energy of the outflows. In agreement with our earlier work, we find that the relativistic energy budget of at least one of these events (GRB 090926A) exceeds the canonical value of 10e51 erg by an order of magnitude. Such energies pose a severe challenge for models in which the GRB is powered by a magnetar or neutrino-driven collapsar, but remain compatible with theoretical expectations for magneto-hydrodynamical (MHD) collapsar models. Our jet opening angles (theta) are similar to those found for pre-Fermi GRBs, but the large initial Lorentz factors (Gamma_0) inferred from the detection of GeV photons imply theta Gamma_0 ~ 70-90, values which are above those predicted in MHD models of jet acceleration. Finally, we find that these Fermi-LAT events preferentially occur in a low-density circumburst environment, and we speculate that this might result from the lower mass-loss rates of their lower-metallicity progenitor stars. Future studies of Fermi-LAT afterglows in the radio with the order-of-magnitude improvement in sensitivity offered by the EVLA should definitively establish the relativistic energy budgets of these events.
description: 29 pages, 11 figures, submitted to ApJ. Comments welcome. v2 - Minor typos corrected.
"KUNTUG'MUSH" DOSTONINING O'QITILISHI
Creators: name: Mustafoyeva, Sojida
Publisher: name: Zenodo
Year: 2025

description: Mazkur maqolada “Kuntug‘mish” xalq dostonining  maktab darsliklarida o‘qitish metodikasi tahlil qilinadi. Unda dostonning mazmuni, badiiy xususiyatlari, obrazlar tizimi va undagi milliy qadriyatlarning o‘quvchilarga yetkazilish usullari ko‘rib chiqiladi. Maqolada shuningdek, dostonni o‘qitishda interfaol metodlardan foydalanish, rolli o‘yinlar, matn tahlili, savol-javoblar, guruhlarda ishlash kabi samarali yondashuvlar haqida fikr yuritiladi. Doston orqali o‘quvchilarda vatanparvarlik, jasorat, sadoqat kabi tuyg‘ularni shakllantirish, xalq og‘zaki ijodining o‘rni va ahamiyatini anglatish asosiy maqsad sifatida belgilanadi. Ishda shuningdek, darsliklardagi topshiriqlar tahlil qilinib, ularni yanada takomillashtirish bo‘yicha tavsiyalar beriladi.
The schematic diagram of Automated Filter Tester, photographs of PI-N/MFA0 and reversible manual compression of PI-N/MFAs from Robust polyimide nano/microfibre aerogels welded by solvent-vapour for environmental applications
Creators: name: Shen, Ying
name: Li, Dawei
name: Deng, Bingyao
name: Liu, Qingsheng
name: Liu, Huizhong
name: Wu, Tong
Publisher: name: The Royal Society
Year: 2019

description: This ESM file has three supplementary figures. Fig. S1 showing experimental set-up for testing filtration efficiency. Fig. S2 showing photographs of PI-N/MFA0 prepared from different molds. Fig. S3 showing reversible manual compression of PI-N/MFAs (PI-N/MFA0, PI-N/MFA50 and PI-N/MFA100).
Dissipative Chaos in Quantum Distributions
Creators: name: Gevorgyan, T. V.
name: Shahinyan, A. R.
name: Kryuchkyan, G. Yu.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss some problems of dissipative chaos for open quantum systems in the framework of semiclassical and quantum distributions. For this goal, we propose a driven nonlinear oscillator with time-dependent coefficients, i.e. with time-dependent Kerr-nonlinearity and time-modulated driving field. This model showing both regular and chaotic dynamics in the classical limit is realized in several experimental schemes. Quantum dissipative chaos is analyzed on the base of numerical method of quantum trajectories. Three quantities are studied: the Wigner function of oscillatory mode from the point of view of quantum-assemble theory and both semiclassical Poincare section and quantum Poincare section calculated on a single quantum trajectory. The comparatively analysis of these distributions for various operational chaotic regimes of the models is performed, as well as scaling invariance in dissipative chaos and quantum interference effects assisted by chaos are discussed.
description: 17 pages, 3 figures, proceeding of Modern Optics And Photonics
Lasciamoci stupire!
Creators: name: Polli, Livia
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2018

description: “Bisogna invitare i giovani, ragazzi e ragazze, a “sentire” quali emozioni sperimentano di fronte alle cose importanti della vita e soprattutto “sentire” la parte più vera di se stessi, l’unica che li può aiutare a diventare ciò che davvero vogliono essere” (Pellai 2016). Attraverso il metodo della ricerca-azione, ho proposto ad una terza e ad una quarta media delle attività diversificate, focalizzate su temi affettivi e/o sessuali, che partissero dagli stimoli e dai bisogni degli allievi. Lo scopo che mi sono prefissa di raggiungere è di mostrare delle possibili applicazioni pratiche all’interno di una materia come l’italiano che trovo si presti perfettamente per portare avanti un discorso legato all’educazione all’affettività e alla sessualità e al contempo esercitare le competenze disciplinari e trasversali previste dal Piano di Studio. Dall’analisi dei risultati emerge un’imminente necessità da parte degli alunni di poter esprimere dubbi, emozioni e sentimenti riguardo a tali tematiche in uno spazio apposito e in un contesto sicuro. Si nota inoltre un marcato desiderio di sentirne parlare maggiormente e non esclusivamente dal lato biologico. Relatrice: Daria Delorenzi Croci. Materia: Italiano
Tararì tararera… ma non si capisce cosa dicono! Le emozioni suscitate da una lingua inventata nei bambini di SI
Creators: name: Ghidossi, Jasmin
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2013

description: Questa ricerca interpretativa si basa su un libro scritto in una lingua inventata, Tararì tararera di E. Bussolati, e si pone l’obiettivo di individuare le reazioni, emotive e cognitive, dei bambini di fronte alla sua lettura. In particolare, ci si è interrogati su come i bambini riconoscessero le emozioni dei personaggi, di come parlassero di sé in rapporto a tali emozioni e sull’importanza della presenza delle immagini. Per raccogliere i dati, tutti di tipo qualitativo, sono state svolte cinque attività didattiche in una sezione della scuola dell’Infanzia di Lavertezzo Piano, durante le quali, grazie all’ausilio di immagini, suoni e di una drammatizzazione, i bambini hanno gradualmente preso confidenza con la lingua del racconto, al punto che durante la lettura di un altro libro della stessa autrice (intitolato Badabùm) sono stati in grado di comprenderne la trama senza difficoltà. Da questa ricerca è emerso che i bambini sono in grado di riconoscere le emozioni dei personaggi basandosi, oltre al contenuto testuale, su diversi livelli come il contesto, gli aspetti sonori e le immagini, e che, se opportunamente motivati, sono in grado di parlare di sé in rapporto alla felicità e alla paura. Relatore: Luca Cignetti
Detectability of giant planets in protoplanetary disks by CO emission lines
Creators: name: Regaly, Zs.
name: Sandor, Zs.
name: Dullemond, C. P.
name: van Boekel, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this paper we intend to provide an indirect method to detect Jovian planets by studying near infrared emission spectra originating in the protoplanetary disks around T Tauri stars. Our idea is to investigate whether a massive planet could induce any observable effect on the spectral lines emerging in the disks atmosphere. As a tracer molecule we propose CO, which is excited in the ro-vibrational fundamental band in the disk atmosphere to a distance of ~2-3 AU (depending on the stellar mass) where terrestrial planets are thought to form. The synthetic molecular spectral line profiles were calculated by an own developed semi-analytical double layer disk model. 2D gas dynamics were incorporated in the calculation of synthetic spectral lines. We demonstrate that a massive planet embedded in a protoplanetary disk strongly influences the originally circular Keplerian gas dynamics. The perturbed motion of the gas can be detected by comparing the CO line profiles in emission, which is emerge from planet-bearing to those of planet-free disk models. The planet signal has two major characteristics: a permanent line profile asymmetry, and short timescale variability correlated with the orbital phase of the giant planet. We have found that the strength of the asymmetry depends on the physical parameters of the star-planet-disk system, such as the disk inclination angle, the planetary and stellar masses, the orbital distance, and the size of the disk inner cavity. The permanent line profile asymmetry is caused by a disk in an eccentric state in the gap opened by the giant planet. However, the variable component is a consequence of the local dynamical perturbation by the orbiting giant planet. We show that a forming giant planet, still embedded in the protoplanetary disk, can be detected using contemporary or future high-resolution near-IR spectrographs like VLT/CRIRES and ELT/METIS.
description: 19 pages, 10 figures
title: ÐÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ñ ÑÑÑÐ±Ð¸Ð½Ð½Ð¾Ð¹ Ð»Ð¾Ð¿Ð°ÑÐºÐ¸ 4 ÑÑÑÐ¿ÐµÐ½Ð¸ Ð³Ð°Ð·Ð¾Ð²Ð¾Ð¹ ÑÑÑÐ±Ð¸Ð½Ñ Ð¿ÑÐ¸ ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ Ð¸ Ð¸Ð½ÐµÑÑÐ¸Ð¾Ð½Ð½ÑÑ Ð½Ð°Ð³ÑÑÐ·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: Modal analysis of the 4th stage of a gas turbine under thermal and inertial loads
Creators: name: Ð Ð¾Ð¶ÐºÐ¾Ð², ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ
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: 2021
Subjects: Ð¼ÐµÑÐ¾Ð´ ÐºÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð²
Ð¼Ð¾Ð´Ð°Ð»ÑÐ½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð·
Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ½Ð¾Ð¹ Ð°Ð½Ð°Ð»Ð¸Ð·
ÑÑÑÐ±Ð¸Ð½Ð½Ð°Ñ Ð»Ð¾Ð¿Ð°ÑÐºÐ°
finite element
method
modal analysis
strength analysis
turbine blade

description: Ð¢ÐµÐ¼Ð° ÑÐ°Ð±Ð¾ÑÑ - ÐÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ñ ÑÑÑÐ±Ð¸Ð½Ð½Ð¾Ð¹ Ð»Ð¾Ð¿Ð°ÑÐºÐ¸ 4 ÑÑÑÐ¿ÐµÐ½Ð¸ Ð³Ð°Ð·Ð¾Ð²Ð¾Ð¹ ÑÑÑÐ±Ð¸Ð½Ñ Ð¿ÑÐ¸ ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ Ð¸ Ð¸Ð½ÐµÑÑÐ¸Ð¾Ð½Ð½ÑÑ Ð½Ð°Ð³ÑÑÐ·ÐºÐ°Ñ. Ð Ð°ÑÑÐµÑÑ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÑÑ Ð¿ÑÐ¸ Ð¿Ð¾Ð¼Ð¾ÑÐ¸ Ð¼ÐµÑÐ¾Ð´Ð° ÐºÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð². Ð ÑÐ°Ð±Ð¾ÑÐµ ÑÐµÑÐµÐ½Ð° ÑÑÐ°ÑÐ¸Ð¾Ð½Ð°ÑÐ½Ð°Ñ Ð·Ð°Ð´Ð°ÑÐ° ÑÐµÐ¿Ð»Ð¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¾ÑÑÐ¸ Ð´Ð»Ñ Ð´Ð¸ÑÐºÐ° Ñ Ð»Ð¾Ð¿Ð°ÑÐºÐ°Ð¼Ð¸ Ð´Ð»Ñ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð½Ð°Ð³ÑÑÐ·Ð¾Ðº, Ð²ÑÐ·Ð²Ð°Ð½Ð½ÑÑ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ½ÑÐ¼ Ð²Ð¾Ð·Ð´ÐµÐ¹ÑÑÐ²Ð¸ÐµÐ¼, Ð·Ð°Ð´Ð°ÑÐ° Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð½Ð¾-Ð´ÐµÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ñ Ñ ÑÑÐµÑÐ¾Ð¼ ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ Ð¸ Ð¸Ð½ÐµÑÑÐ¸Ð¾Ð½Ð½ÑÑ Ð½Ð°Ð³ÑÑÐ·Ð¾Ðº, Ð° ÑÐ°ÐºÐ¶Ðµ Ð·Ð°Ð´Ð°ÑÐ° ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ð¹ Ð¸ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ ÑÐ¾ÑÐ¼ Ð´Ð»Ñ ÑÐµÑÐ²ÐµÑÑÐ¾Ð¹ ÑÑÑÐ¿ÐµÐ½Ð¸ ÑÑÑÐ±Ð¸Ð½Ñ. Ð¢Ð°ÐºÐ¶Ðµ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÑÑÑ Ð¼Ð¾Ð´ÐµÐ»ÑÐ½Ð°Ñ Ð·Ð°Ð´Ð°ÑÐ° Ð½Ð°ÑÐ¾Ð¶Ð´ÐµÐ½Ð¸Ñ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ð¹ Ð¸ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ ÑÐ¾ÑÐ¼ ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹ Ð¿Ð»Ð¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°ÐºÑÐµÐ¿Ð»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð² ÑÐµÐ½ÑÑÐµ Ð´Ð¸ÑÐºÐ°. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð¼ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÑÑÑÑ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ ÑÐ°ÑÑÐ¾ÑÑ Ð¸ ÑÐ¾ÑÐ¼Ñ ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹ 4 ÑÑÑÐ¿ÐµÐ½Ð¸ ÑÑÑÐ±Ð¾Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾ÑÐ°, ÑÐ°ÐºÐ¶Ðµ Ð¸Ñ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÑ Ð¾Ñ ÑÑÐµÑÐ° ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ Ð½Ð°Ð³ÑÑÐ·Ð¾Ðº.
description: The topic of the graduate qualification work is the modal analysis of the 4th stage of a gas turbine under thermal and inertial loads. Calculations are performed using the finite element method. The work considers the stationary thermal conductivity problem for a disk with, the problem of the stress-strain state with thermal and inertial loads and the problem of eigenvalues and eigenforms for the stage of the turbine, the problem of the eigenvalues and eigenforms of vibrations of a flat disk fixed in the center. The result of the work is the frequencies values and vibration forms of the 4 stage of the turbo generator and their dependence on the thermal loads.