cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Towards a Quantitative Modeling of the Synthesis of the Pectate Lyases, Essential Virulence Factors in Dickeya Dadantii
Creators: name: Kepseu, Wilfred D.
name: Sepulchre, Jacques-Alexandre
name: Reverchon, Sylvie
name: Nasser, William
Publisher: name: arXiv
Year: 2010
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: A dynamic mathematical model has been developed and validated to describe the synthesis of pectate lyases (Pels), the major virulence factors in Dickeya dadantii. This work focuses on the simultaneous modeling of the metabolic degradation of pectin by Pel enzymes and the genetic regulation of pel genes by 2-keto-3-deoxygluconate (KDG), a catabolite product of pectin which inactivates KdgR, one of the main repressors of pel genes. This modeling scheme takes into account the fact that the system is composed of two time-varying compartments: the extracellular medium, where Pel enzymes cleave pectin into oligomers, and the bacterial cytoplasm where, after internalization, oligomers are converted to KDG. Using the quasi-stationary state approximations, the model consists of some nonlinear differential equations for which most of the parameters could be estimated from the literature or from independent experiments. The few remaining unknown parameters were obtained by fitting the model equations against a set of Pel activity data. Model predictions were verified by measuring the time courses of bacterial growth, Pel production, pel mRNA accumulation and pectin consumption under various growth conditions. This work reveals that pectin is almost totally consumed before the burst of Pel production. This paradoxical behaviour can be interpreted as an evolutionary strategy to control the diffusion process so that as soon as a small amount of pectin is detected by the bacteria in its surroundings it anticipates more pectin to come. The model also predicts the possibility of bistable steady states in the presence of constant pectin compounds.
description: 21 pages, 11 figures, Journal of Biological Chemistry (In press)
Single-molecule derivation of salt dependent base-pair free energies in DNA
Creators: name: Huguet, J. M.
name: Bizarro, C. V.
name: Forns, N.
name: Smith, S. B.
name: Bustamante, C.
name: Ritort, F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Accurate knowledge of the thermodynamic properties of nucleic acids is crucial to predicting their structure and stability. To date most measurements of base-pair free energies in DNA are obtained in thermal denaturation experiments, which depend on several assumptions. Here we report measurements of the DNA base-pair free energies based on a simplified system, the mechanical unzipping of single DNA molecules. By combining experimental data with a physical model and an optimization algorithm for analysis, we measure the 10 unique nearest-neighbor base-pair free energies with 0.1 kcal mol-1 precision over two orders of magnitude of monovalent salt concentration. We find an improved set of standard energy values compared with Unified Oligonucleotide energies and a unique set of 10 base-pair-specific salt-correction values. The latter are found to be strongest for AA/TT and weakest for CC/GG. Our new energy values and salt corrections improve predictions of DNA unzipping forces and are fully compatible with melting temperatures for oligos. The method should make it possible to obtain free energies, enthalpies and entropies in conditions not accessible by bulk methodologies.
description: Main text: 27 pages, 4 figures, 2 tables. Supporting Information: 51 pages, 19 figures, 4 tables
title: Ð§Ð¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸ Ð·Ð°ÑÑÑÐ±Ð½Ð¾Ð³Ð¾ ÑÐ¿Ð»Ð¾ÑÐ½ÐµÐ½Ð¸Ñ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¿Ð¾Ð´Ð²Ð¾Ð´Ð½ÑÑ ÐºÐ¾Ð»Ð¾Ð½Ð½ÑÑ Ð³Ð¾Ð»Ð¾Ð²Ð¾Ðº
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: Numerical simulation of the annular seal installation of the system of subsea casing heads
Creators: name: ÐÐ¾Ð¿ÑÐ°Ð²ÐºÐ¾, ÐÐ¾Ð½ÑÑÐ°Ð½ÑÐ¸Ð½
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: 2022
Subjects: ÑÑÐ°ÑÐ¸ÑÐµÑÐºÐ¾Ðµ ÑÐ¿Ð»Ð¾ÑÐ½ÐµÐ½Ð¸Ðµ
ÐºÐ¾Ð»Ð¾Ð½Ð½Ð°Ñ Ð³Ð¾Ð»Ð¾Ð²ÐºÐ°
ÑÐ¸ÑÑÐµÐ¼Ð° Ð¿Ð¾Ð´Ð²Ð¾Ð´Ð½Ð¾Ð¹ Ð´Ð¾Ð±ÑÑÐ¸
ÑÐ¿ÑÑÐ³Ð¸Ð¹ ÐºÐ¾Ð½ÑÐ°ÐºÑ
ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
static sealing
wellhead
subsea production system
elastic contact
numerical simulation

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸ÑÑÐ»ÐµÐ´ÑÐµÑÑÑ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ñ ÑÑÐ°ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ¿Ð»Ð¾ÑÐ½ÐµÐ½Ð¸Ñ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¿Ð¾Ð´Ð²Ð¾Ð´Ð½ÑÑ ÐºÐ¾Ð»Ð¾Ð½Ð½ÑÑ Ð³Ð¾Ð»Ð¾Ð²Ð¾Ðº Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¿Ð»Ð°ÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¹ ÑÐ¿Ð»Ð¾ÑÐ½Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð¼ÐµÑÐ°Ð½Ð¸Ð·Ð¼Ð°. ÐÑÑÐ»ÐµÐ´ÑÑÑÑÑ ÐºÐ»Ð°ÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð·Ð°Ð´Ð°ÑÐ¸ ÑÐµÐ¾ÑÐ¸Ð¸ ÑÐ¿ÑÑÐ³Ð¾ÑÑÐ¸: ÑÐ¿ÑÑÐ³Ð¾Ð¿Ð»Ð°ÑÑÐ¸ÑÐµÑÐºÐ°Ñ Ð·Ð°Ð´Ð°ÑÐ° ÐÐ°Ð¼Ðµ Ð¸ ÐºÐ¾Ð½ÑÐ°ÐºÑÐ½Ð°Ñ Ð·Ð°Ð´Ð°ÑÐ° ÐÐµÑÑÐ°. ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸ÑÑÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¼ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐµ ANSYS.
description: This paper considers the technology of static sealing of a system of subsea wellheads based on plastic deformations of the sealing mechanism. The classical problem of the theory of elasticity are investigated: the elastic-plastic Lame problem and the Hertz contact problem. The study is carried out with the help of numerical simulation in the ANSYS software package.
ЎЗБЕК ДРАМАТУРГИЯСИДА ЭПИК СЮЖЕТЛАРНИНГ БАДИИЙ ТАЛҚИНИ (УСМОН АЗИМ ДРАМАЛАРИ МИСОЛИДА)
Creators: name: Шаҳноза Қаҳҳорова
name: Маҳлиё Сатторова
Publisher: name: Academic research in educational sciences
Year: 2022
Subjects: Шамолжон
шамолжоним! Мени овора қилма! Рўмолим қани?”
Фольклор ва унинг ўзбек драматургиясига
«Кундузсиз кечалар»
Тоҳир ва Зуҳра” асари.

description: Ушбу мақолада ҳозирги ўзбек драматургиясида маросим фолклори анъаналарини бадиий талқин қилиш орқали етномаданий контекст яратиш тамойилларининг аутентив (жонли ижро шакли, оғзакилик) ҳолатини кўрсатиб бериш ва Ўзбек драматургиясида эпик сюжетларнинг бадиий талқини ( Усмон Азим драмалари мисолида).
The LLAGN in the centre of the Galaxy
Creators: name: Contini, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The observations of FIR line and continuum spectra throughout the Galactic centre and in some regions of the disc are analysed in order to determine the physical conditions (densities, shock velocities, radiation parameters, etc.) and the relative abundances of some elements (C, N, and O). The models account for the coupled effect of photoionization and shocks. Consistent model calculations of the line and continuum spectra show that, although the radiation from the stars dominates, an active galactic nucleus (AGN) is clearly present, with a radiation maximum in the Sgr A* region. The flux, similar to that found for low luminosity AGN (LLAGN), is lower by a factor of about 100 than that of AGN.
description: 11 pages, 8 figures, submitted to MNRAS
Constraints on Dark Energy Parameters from Correlations of CMB with LSS
Creators: name: Li, Hong
name: Xia, Jun-Qing
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper, we combine the the latest observational data, including the WMAP five-year data (WMAP5), the baryon acoustic oscillations (BAO) and type Ia supernovae (SN) "union" compilation, and use the Markov Chain Monte Carlo method to determine the dark energy parameters. We pay particular attention to the Integrated Sache-Wolfe (ISW) data from the cross-correlations of cosmic microwave background (CMB) and large scale structure (LSS). In the ΛCDM model, we find that the ISW data, as a complement to the WMAP data, could significantly improve the constraint of curvature Ω_k. We also check the improvement of constraints from the new prior on the Hubble constant and find this new prior could improve the constraint of Ω_k by a factor of 2. Finally, we study the dynamical evolving EoS of dark energy from the current observational data. Based on the dynamical dark energy model, parameterizing as w(a)=w_0+w_a(1-a), we find that the ΛCDM model remains a good fit to the current data. When taking into account the ISW data, the error bars of w_0 and w_a could be shrunk slightly. Current constraints on the dynamical dark energy model are not conclusive. The future precision measurements are needed.
description: 6 pages, 4 figures, accepted for publication in JCAP
Optical anisotropy induced by torsion stresses in LiNbO3 crystals: appearance of an optical vortex
Creators: name: Skab, Ihor
name: Vasylkiv, Yurij
name: Savaryn, Viktoriya
name: Vlokh, Rostyslav
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report the results of studies of torsion effect on the optical birefringence in LiNbO3 crystals. We have found that twisting of those crystals causes a birefringence distribution revealing non-trivial peculiarities. In particular, it has a special point at the center of cross section perpendicular to the torsion axis where zero birefringence value occurs. It has also been ascertained that the surface of the spatial birefringence distribution has a conical shape, with the cone axis coinciding with the torsion axis. We have revealed that an optical vortex, with the topological charge equal to unity, appears under the torsion of LiNbO3 crystals. It has been shown that, contrary to the q-plate, both the efficiency of spin-orbital coupling and the orbital momentum of the emergent light can be operated by the torque moment.
description: 28 pages, 8 figures
Decreto esecutivo concernente l'introduzione di due giorni di vacanza settimanali nelle scuole elementari
Creators: name: (:Unkn) Unknown
Publisher: name: [Bellinzona]
Year: 1947
Subjects: subject: Italian
subject: orario giornalieri
subject: scuole primarie
subject: scuole maggiori

description: Documento conservato presso la Forschungsbibliothek Pestalozzianum, Pädagogische Hochschule Zürich.
CMS ridge effect at LHC as a manifestation of bremstralung of gluons due to the quark-anti-quark string formation
Creators: name: Arbuzov, B. A.
name: Boos, E. E.
name: Savrin, V. I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The recently reported effect of long-range near-side angular correlations at LHC occurs for large multiplicities of particles with $1\,GeV\,
description: 5 pages, 3 figures
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¿ÑÐ¾ÐµÐºÑÐ° Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð° Ð¼Ð¾ÑÑÐ° ÑÐµÑÐµÐ· Ñ. ÐÐ¶Ð¾ÑÐ° Ð² ÑÐ¾ÑÑÐ°Ð²Ðµ ÑÑÑÐ¾ÑÑÐµÐ¹ÑÑ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½Ð¾Ð¹ Ð´Ð¾ÑÐ¾Ð³Ð¸ Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³-ÐÐ¾ÑÐºÐ²Ð°
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: Development of a project to organize the construction of a bridge across the r. Izhora in the composition of the St. Petersburg - Moscow highway under construction
Creators: name: ÐÐ°ÑÐºÐ¾Ð²Ð°, ÐÐ½Ð½Ð°
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: Ð¼Ð¾ÑÑ
Ð¿ÑÐ¾ÐµÐºÑ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð°
Ð¾Ð¿Ð¾ÑÑ
Ð¿ÑÐ¾Ð»ÑÑÐ½Ð¾Ðµ ÑÑÑÐ¾ÐµÐ½Ð¸Ðµ
ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð¾ Ð¼Ð¾ÑÑÐ°
ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ñ ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð°
ÐºÐ°Ð»ÐµÐ½Ð´Ð°ÑÐ½ÑÐ¹ Ð³ÑÐ°ÑÐ¸Ðº
brige
the construction organization plan
pier
superstructure construction
brige construction
construction technology
construction schedule

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½ Ð¿ÑÐ¾ÐµÐºÑ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð° ÑÐ°Ð±Ð¾Ñ Ð½Ð° ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð¾ Ð¼Ð¾ÑÑÐ° ÑÐµÑÐµÐ· Ñ. ÐÐ¶Ð¾ÑÐ° Ð² ÑÐ¾ÑÑÐ°Ð²Ðµ ÑÑÑÐ¾ÑÑÐµÐ¹ÑÑ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½Ð¾Ð¹ Ð´Ð¾ÑÐ¾Ð³Ð¸ Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ - ÐÐ¾ÑÐºÐ²Ð°. Ð¡ ÑÑÑÑÐ¾Ð¼ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð´Ð°Ð½Ð½ÑÑ Ð±ÑÐ»Ð° Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð° Ð¿ÑÐ¾Ð´Ð¾Ð»Ð¶Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÑ ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð°, Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¾ ÐºÐ¾Ð»Ð¸ÑÐµÑÑÐ²Ð¾ ÑÐ°Ð±Ð¾ÑÐ¸Ñ, ÑÑÑÐ´Ð¾Ð·Ð°ÑÑÐ°ÑÑ Ð¸ Ð¾Ð±ÑÑÐ¼Ñ ÑÐ°Ð±Ð¾Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ°ÑÑÐ¸. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð²ÑÑÐµ ÑÐºÐ°Ð·Ð°Ð½Ð½ÑÑ ÑÐµÑÐ½Ð¸ÐºÐ¾ â ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÐµÐ¹ Ð±ÑÐ»Ð° Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð° ÑÑÐ¾Ð¸Ð¼Ð¾ÑÑÑ ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð° Ð¼Ð¾ÑÑÐ°.
description: In this work, the project of works on the construction of a bridge over the river Izhora as part of the road under construction St. Petersburg - Moscow. Taking into account the obtained data, the duration of construction was determined, the number of workers, labor costs and the volume of work of the technological part was determined. On the basis of the above mentioned technical and economic indicators, the cost of the bridge construction was determined.
Bell's Theory with no Locality assumption
Creators: name: Tresser, Charles
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We prove versions of the Bell and the GHZ Theorems that do not assume Locality but only the Effect After Cause Principle (EACP) according to which for any Lorentz observer the value of an observable cannot change because of an event that happens after the observable is measured. We show that the EACP is strictly weaker than Locality. As a consequence of our results, Locality cannot be considered as the common cause of the contradictions obtained in all versions of Bell's Theory. All versions of Bell's Theorem assume Weak Realism according to which the value of an observable is well defined whenever the measurement could be made and some measurement is made. As a consequence of our results, Weak Realism becomes the only hypothesis common to the contradictions obtained in all versions of Bell's Theory. Usually, one avoids these contradictions by assuming Non-Locality; this would not help in our case since we do not assume Locality. This work indicates that it is Weak Realism, not Locality, that needs to be negated to avoid contradictions in microscopic physics, at least if one refuses as false the de Broglie-Bohm Hidden Variable theory because of its essential violation of Lorentz invariance.
Radially extended kinematics and stellar populations of the massive ellipticals NGC1600, NGC4125 and NGC7619. Constraints on the outer dark halo density profile
Creators: name: Pu, S. B.
name: Saglia, R. P.
name: Fabricius, M. H.
name: Thomas, J.
name: Bender, R.
name: Han, Z.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present high quality long slit spectra along the major and minor axes out to 1.5-2 Re (14-22 kpc) of three bright elliptical galaxies (NGC1600, NGC4125, NGC7619) obtained at the Hobby-Eberly Telescope (HET). We derive stellar kinematic profiles and Lick/IDS indices (Hbeta, Mgb, Fe5015, Fe5270, Fe5335, Fe5406). Moreover, for NGC4125 we derive gas kinematics and emission line strengths. We model the absorption line strengths using Simple Stellar Populations models that take into account the variation of [α/Fe] and derive ages, total metallicity and element abundances. Overall, we find that the three galaxies have old and [α/Fe] overabundant stellar populations with no significant gradients. The metallicity is supersolar at the center with a strong negative radial gradient. For NGC4125, several pieces of evidence point to a recent dissipational merger event. We calculate the broad band color profiles with the help of SSP models. All of the colors show sharp peaks at the center of the galaxies, mainly caused by the metallicity gradients, and agree well with the measured colors. Using the Schwarzschild's axisymmetric orbit superposition technique, we model the stellar kinematics to constrain the dark halos of the galaxies. We use the tight correlation between the Mgb strength and local escape velocity to set limits on the extent of the halos by testing different halo sizes. Logarithmic halos - cut at 60 kpc -minimize the overall scatter of the Mgb-Vesc relation. Larger cutoff radii are found if the dark matter density profile is decreasing more steeply at large radii.
description: Accepted for publication in Astronomy and Astrophysics
Development of immunocompetent and immunosuppressed orthotopic rat model of hepatocellular carcinoma
Creators: name: Charles, Lovelyn
Publisher: name: University of British Columbia
Year: 2022

description: Hepatocellular carcinoma (HCC) accounts for over 500,000 deaths per year and is the most common form of primary liver cancer. It has a very dismal prognosis with incidence rates almost equal to prevalence rates. In North America, incidence is on the increase due to increasing hepatitis C virus infections. More than 75% of patients diagnosed with HCC do not qualify for potentially curative therapies such as surgical resection, radiofrequency ablation and liver transplantation, and thus require management by trans-catheter procedures like radioembolization. Radioembolization is performed in more than 75% of patients and involves injecting radioactive microspheres through a catheter directly into the vessel that supplies blood to the tumor. Since the tumor and healthy liver tissue get their blood supply from two different sources, this procedure preferentially irradiates the tumor while sparing the healthy liver tissue. Therefore, we hypothesize that an orthotopic rat model of hepatocellular carcinoma can be used for non-invasive monitoring of tumor growth and development. Rat hepatoma cells (N1S1) were transfected by a lentiviral method and injected into the liver of Sprague Dawley and Rowett Nude (RNU) rats using ultrasound guidance and an alternative method respectively. Longitudinal tumor growth was followed by bioluminescence imaging (BLI). In both models, tumors were visible within 3 to 4 days post cell inoculation by BLI. Tumor take rates were 52% and 73% for male and female Sprague Dawley rats, respectively, and 100% for RNU rats. Day 12 and 15 post inoculation, we recorded complete tumor regression in all Sprague Dawley rats but continuous tumor growth for up to 21 days post induction in the RNU rats. The immunocompetent Sprague Dawley rat model is not ideal for investigation of catheterization techniques like radioembolization. The RNU rat model, however, is characterized iv by consistent and reliable tumor growth and thus a desirable method for future therapeutic investigations.
Evolution of magnetism in Yb(Rh_(1-x)Co_x)2Si2
Creators: name: Klingner, C.
name: Krellner, C.
name: Brando, M.
name: Vyalikh, D. V.
name: Kummer, K.
name: Danzenbacher, S.
name: Molodtsov, S. L.
name: Laubschat, C.
name: Kinoshita, T.
name: Kato, Y.
name: Muro, T.
name: Geibel, C.
name: Steglich, F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a study of the evolution of magnetism from the quantum critical system YbRh2Si2 to the stable trivalent Yb system YbCo2Si2. Single crystals of Yb(Rh_(1-x)Co_x)2Si2 were grown for 0 < x < 1 and studied by means of magnetic susceptibility, electrical resistivity, and specific heat measurements, as well as photoemission spectroscopy. The results evidence a complex magnetic phase diagram, with a non-monotonic evolution of T_N and two successive transitions for some compositions resulting in two tricritical points. The strong similarity with the phase diagram of YbRh2Si2 under pressure indicates that Co substitution basically corresponds to the application of positive chemical pressure. Analysis of the data proves a strong reduction of the Kondo temperature T_K with increasing Co content, T_K becoming smaller than T_N for x ~ 0.5, implying a strong localization of the 4f electrons. Furthermore, low-temperature susceptibility data confirm a competition between ferromagnetic and antiferromagnetic exchange. The series Yb(Rh_(1-x)Co_x)2Si2 provides an excellent experimental opportunity to gain a deeper understanding of the magnetism at the quantum critical point in the vicinity of YbRh2Si2 where the antiferromagnetic phase disappears (T_N=>0).
description: 11 pages, 9 figures
Magnetism and Charge Dynamics in Iron Pnictides
Creators: name: Yin, Z. P.
name: Haule, K.
name: Kotliar, G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In a wide variety of materials, such as copper oxides, heavy fermions, organic salts, and the recently discovered iron pnictides, superconductivity is found in close proximity to a magnetically ordered state. The character of the proximate magnetic phase is thus believed to be crucial for understanding the differences between the various families of unconventional superconductors and the mechanism of superconductivity. Unlike the AFM order in cuprates, the nature of the magnetism and of the underlying electronic state in the iron pnictide superconductors is not well understood. Neither density functional theory nor models based on atomic physics and superexchange, account for the small size of the magnetic moment. Many low energy probes such as transport, STM and ARPES measured strong anisotropy of the electronic states akin to the nematic order in a liquid crystal, but there is no consensus on its physical origin, and a three dimensional picture of electronic states and its relations to the optical conductivity in the magnetic state is lacking. Using a first principles approach, we obtained the experimentally observed magnetic moment, optical conductivity, and the anisotropy of the electronic states. The theory connects ARPES, which measures one particle electronic states, optical spectroscopy, probing the particle hole excitations of the solid and neutron scattering which measures the magnetic moment. We predict a manifestation of the anisotropy in the optical conductivity, and we show that the magnetic phase arises from the paramagnetic phase by a large gain of the Hund's rule coupling energy and a smaller loss of kinetic energy, indicating that iron pnictides represent a new class of compounds where the nature of magnetism is intermediate between the spin density wave of almost independent particles, and the antiferromagnetic state of local moments.
description: 4+ pages with additional one-page supplementary material
Global Structure of Black Holes in String Theory with Gauss-Bonnet Correction in Various Dimensions
Creators: name: Ohta, Nobuyoshi
name: Torii, Takashi
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study global structures of black hole solutions in Einstein gravity with Gauss-Bonnet term coupled to dilaton in various dimensions. In particular we focus on the problem whether the singularity is weakened due to the Gauss-Bonnet term and dilaton. We find that there appears the non-central singularity between horizon and the center in many cases, where the metric does not diverge but the Kretschmann invariant does diverge. Hence this is a singularity, but we find the singularity is much milder than the Schwarzschild solution and the non-dilatonic one. We discuss the origin of this "fat" singularity. In other cases, we encounter singularity at the center which is much stronger than the usual one. We find that our black hole solutions have three different types of the global structures; the Schwarzschild, Schwarzschild-AdS and "regular AdS black hole" types.
description: 22 pages, 6 figures
DISTAL International 1st issue - 2021
Creators: name: Braschi, Ilaria
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2021
Subjects: AGR/01 Economia ed estimo rurale
AGR/02 Agronomia e coltivazioni erbacee
AGR/03 Arboricoltura generale e coltivazioni arboree
AGR/04 Orticoltura e floricoltura
AGR/05 Assestamento forestale e selvicoltura
AGR/07 Genetica agraria
AGR/08 Idraulica agraria e sistemazioni idraulico-forestali
AGR/09 Meccanica agraria
AGR/10 Costruzioni rurali e territorio agroforestale
AGR/11 Entomologia generale e applicata
AGR/12 Patologia vegetale
AGR/13 Chimica agraria
AGR/14 Pedologia
AGR/15 Scienze e tecnologie alimentari
AGR/16 Microbiologia agraria
AGR/17 Zootecnica generale e miglioramento genetico
AGR/18 Nutrizione e alimentazione animale
AGR/19 Zootecnica speciale
AGR/20 Zoocolture
BIO/01 Botanica generale
BIO/10 Biochimica
CHIM/03 Chimica generale e inorganica
CHIM/06 Chimica organica
IUS/03 Diritto agrario
VET/04 Ispezione degli alimenti di origine animale

description: Newsletter on research, education, knowledge exchange, and international activities of DISTAL. By DISTAL Communication.
Interplay between Stellar Spirals and the ISM in Galactic Disks
Creators: name: Wada, Keiichi
name: Baba, Junichi
name: Saitoh, Takayuki R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We propose a new dynamical picture of galactic stellar and gas spirals, based on hydrodynamic simulations in a `live' stellar disk. We focus especially on spiral structures excited in a isolated galactic disk without a stellar bar. Using high-resolution, 3-dimensional N-body/SPH simulations, we found that the spiral features of the gas in galactic disks are formed by essentially different mechanisms from the galactic shock in stellar density waves. The stellar spiral arms and the interstellar matter on average corotate in a galactic potential at any radii. Unlike the stream motions in the galactic shock, the interstellar matter flows into the local potential minima with irregular motions. The flows converge to form dense gas clouds/filaments near the bottom of the stellar spirals, whose global structures resemble dust-lanes seen in late-type spiral galaxies. The stellar arms are non-steady; they are wound and stretched by the galactic shear, and thus local densities of the arm change on a time scale of ~ 100 Myrs, due to bifurcating or merging with other arms. This makes the gas spirals associated with the stellar arms non-steady. The association of dense gas clouds are eventually dissolved into inter-arm regions with non-cirucular motions. Star clusters are formed from the cold, dense gases, whose ages are less than ~30 Myrs, and they are roughly associated with the background stellar arms without a clear spatial offset between gas spiral arms and distribution of young stars.
description: 13 pages, 12 figures, accepted by ApJ. Higher resolution of ms.pdf is available at http://d.pr/Nvjk A targzipped Supplementary movies is available at http://d.pr/TV61
A Geometric Approach to the Problem of Unique Decomposition of Processes
Creators: name: Balabonski, Thibaut
name: Haucourt, Emmanuel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: This paper proposes a geometric solution to the problem of prime decomposability of concurrent processes first explored by R. Milner and F. Moller in [MM93]. Concurrent programs are given a geometric semantics using cubical areas, for which a unique factorization theorem is proved. An effective factorization method which is correct and complete with respect to the geometric semantics is derived from the factorization theorem. This algorithm is implemented in the static analyzer ALCOOL.
description: 15 pages
[Quaderni Scuola Magistrale Paolo Lepori] - Riassunti dell'Eneide - Classe V Sezione B - Lugano
Creators: name: Lepori, Paolo
Publisher: name: Lugano
Year: 1921
Subjects: subject: Calligraphy
subject: Italian
subject: History
subject: proposizione
subject: invocazione
subject: ira di Giunone
subject: Troiani
subject: cavallo troiano
subject: Polidoro
subject: ombra di Ettore
subject: Achemenide
subject: Caronte
subject: Cerbero
subject: Didone
subject: Omero

description: Quaderni di appunti delle lezioni della Scuola Magistrale, raccolti da Paolo Lepori (1900-1965) tra gli anni scolastici ca. 1915-1921. Egli studiò al ginnasio di Lugano dal 1912 al 1915. In seguito, nel 1916, si iscrisse alla Magistrale terminando gli studi nel 1921. Divenne poi maestro alla scuola di Roveredo. Nel 1934 divenne poi direttore della Scuola Maggiore di Paradiso. Dal 1956 sino alla pensione ha insegnato alle Scuole Professionali serali di Lugano. Scansione a doppia pagina.
Spin dynamics in the optical cycle of single nitrogen-vacancy centres in diamond
Creators: name: Robledo, Lucio
name: Bernien, Hannes
name: van der Sar, Toeno
name: Hanson, Ronald
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We investigate spin-dependent decay and intersystem crossing in the optical cycle of single negatively-charged nitrogen-vacancy (NV) centres in diamond. We use spin control and pulsed optical excitation to extract both the spin-resolved lifetimes of the excited states and the degree of optically-induced spin polarization. By optically exciting the centre with a series of picosecond pulses, we determine the spin-flip probabilities per optical cycle, as well as the spin-dependent probability for intersystem crossing. This information, together with the indepedently measured decay rate of singlet population provides a full description of spin dynamics in the optical cycle of NV centres. The temperature dependence of the singlet population decay rate provides information on the number of singlet states involved in the optical cycle.
description: 11 pages, 5 figures
A Poisson-Boltzmann approach for a lipid membrane in an electric field
Creators: name: Ziebert, Falko
name: Lacoste, David
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The behavior of a non-conductive quasi-planar lipid membrane in an electrolyte and in a static (DC) electric field is investigated theoretically in the nonlinear (Poisson-Boltzmann) regime. Electrostatic effects due to charges in the membrane lipids and in the double layers lead to corrections to the membrane elastic moduli which are analyzed here. We show that, especially in the low salt limit, i) the electrostatic contribution to the membrane's surface tension due to the Debye layers crosses over from a quadratic behavior in the externally applied voltage to a linear voltage regime. ii) the contribution to the membrane's bending modulus due to the Debye layers saturates for high voltages. Nevertheless, the membrane undulation instability due to an effectively negative surface tension as predicted by linear Debye-Hückel theory is shown to persist in the nonlinear, high voltage regime.
description: 15 pages, 4 figures
title: Entomology Newsletter for County Agents: ENCA Index (1994 - 1996)
Creators: name: LUFTIG, DAVID
name: Washington State University Department Of Entomology
Publisher: name: Washington State University
Year: 1996
Subjects: Entomology

description: Entomology County Agent Extension Abstracts 1994 - 1996 ( Abstracts of the 53rd - 55th Annual Northwest Insect Management Conference)
A new CMS pixel detector for the LHC luminosity upgrade
Creators: name: Favaro, Carlotta
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The CMS inner pixel detector system is planned to be replaced during the first phase of the LHC luminosity upgrade. The plans foresee an ultra low mass system with four barrel layers and three disks on either end. With the expected increase in particle rates, the electronic readout chain will be changed for fast digital signals. An overview of the envisaged design options for the upgraded CMS pixel detector is given, as well as estimates of the tracking and vertexing performance.
description: 5 pages, 8 figures, proceedings of 8th International Conference on Radiation Effects on Semiconductor Materials Detectors and Devices
Study of the eta meson production with the polarised proton beam
Creators: name: Moskal, Pawel
name: Hodana, Malgorzata
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The azimuthally symmetric WASA detector and the polarised proton beam of COSY, enable investigations of energy and angular dependence of the beam analysing power in the pp --> ppeta reaction. The aim of the studies is the determination of the partial wave contributions via interference terms which are inaccessible from spin averaged observables. The partial wave decomposition is mandatory for the understanding of the reaction dynamics and for the determination of the eta-proton interaction, independently of the theoretical paradigm used.
description: To be published in J. Phys. Conf. Ser. in the second quarter of 2011
Siamo ciò che compriamo. Progetto di comunicazione sociale: analisi di casi studio legati alla sensibilizzazione verso la sperimentazione animale
Creators: name: Cozzi, Susanna Sofia
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2016

description: Il presente lavoro di ricerca si configura come un approfondimento inerente alla comunicazione sociale, basato sull’analisi delle strategie volte alla divulgazione di un messaggio concepito per sensibilizzare in chiave morale, culturale o etica i comportamenti individuali. In particolar modo si analizzerà l’efficacia delle campagne di sensibilizzazione dedicate allo sfruttamento degli animali a scopi scientifici. La ricerca si limiterà all’analisi dei video virali nei canali del web (facebook, youtube e il website). Lo scopo di questa ricerca prevede quindi di realizzare una campagna di sensibilizzazione sociale, cercando di aumentare la consapevolezza dell’opinione pubblica in merito alla sperimentazione animale svolta nella fase di produzione di alcuni prodotti, suggerendo una considerazione etica circa la sofferenza e morte di un essere vivente per motivi che si assumono come non indispensabili. L’individuo all’interno della società viene quotidianamente sommerso da informazioni e immagini fornitegli dai media, che alterando i dati emessi alla fonte incidono su determinate scelte. In che modo un video virale può modificare i comportamenti e gli atteggiamenti del singolo individuo? Attraverso quali meccanismi si riescono a modificare questi comportamenti? L’analisi delle diverse strategie di comunicazione utilizzate per influenzare il pubblico, in questo caso dal punto di vista dei video virali, mi è stata d’aiuto per sviluppare un metodo comunicativo efficace per dare origine al mio artefatto conclusivo.
Artound - street art a Lugano: informazione ed esperienza
Creators: name: Stöckli, Francesca
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2016

description: La Street art è un’arte diffusa globalmente e contemporanea, permette di vivere gli spazi in cui viviamo e visitiamo secondo una nuova prospettiva, si adatta a qualsiasi tipologia di panorama e permette di creare scambi e comunicazioni internazionali. Una prima parte di ricerca mi ha permesso di approfondire le mie conoscenze e avvicinarmi maggiormente al movimento artistico a livello internazionale. È un’arte che si associa soprattutto a grandi città urbanizzate, ma in realtà anche alle nostre latitudini è possibile vedere interventi di Street art realizzati negli spazi e sulle superfici cittadine. Ho voluto delineare e studiare la relazione fra la Street art e il territorio ticinese, più nello specifico focalizzandomi su Lugano, il luogo in Ticino dove si trovano più opere. Tramite delle ricerche sul campo, interviste e un sondaggio, ho potuto mappare la situazione attuale, in modo da capire l’importanza che questa tipologia artistica ha nel territorio, com’è vista e considerata, e l’interesse che le persone hanno verso di essa. Ciò mi ha permesso di delineare i miei obiettivi: ho captato la necessità di coinvolgere e informare maggiormente le persone in merito agli interventi artistici di Street art presenti nella città. Principalmente perché al momento è un’arte presa poco in considerazione, ma al tempo stesso i locali ne sono molto interessati e apprezzano gli interventi artistici urbani. Inoltre sono arrivata alla conclusione che è un ambito che può essere preso in considerazione come offerta culturale e artistica della città, da offrire non solo agli indigeni ma anche ai turisti.
Is There Unification in the 21st Century?
Creators: name: Ha, Yuan K.
Publisher: name: arXiv
Year: 2010
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 the last 100 years, the most important equations in physics are Maxwell's equations for electrodynamics, Einstein's equation for gravity, Dirac's equation for the electron and Yang-Mills equation for elementary particles. Do these equations follow a common principle and come from a single theory? Despite intensive efforts to unify gravity and the particle interactions in the last 30 years, the goal is still to be achieved. Recent theories have not answered any question in physics. We examine the issues involved in this long quest to understand the ultimate nature of spacetime and matter.
description: Lecture delievered in Conference in Honor of Murray Gell-Mann's 80th Birthday. February 24 - 26, 2010. Nanyang Executive Centre, Singapore. 10 pages
Development of scanning electrochemical microscopy for product selective screening of catalysts for carbon dioxide electroreduction to formate
Creators: name: Mayer, Francis
Publisher: name: University of British Columbia
Year: 2021

description: The current work deals with the development of scanning electrochemical microscopy (SECM) as a product selective catalyst screening tool for CO₂ electroreduction to formate reaction (CO2RF) in aqueous media. CO2RF is a proposed route for utilizing CO₂ and surplus electrical energy produced by intermittent renewable sources. In CO2RF devices, CO₂ is electrochemically converted to formic acid or to a solution of formate ions. The resulting product can be either sold on the market, used for H₂ storage, or oxidized back to CO₂ to recover the electricity in direct liquid fuel cells. Our goal is to develop SECM for the simultaneous characterization of multiple CO₂ electroreduction (CO2RR) catalysts, probing their electrocatalytic activity in a product selective manner. To illustrate our method, we studied tin oxide-based catalyst, one of the most promising CO2RF catalyst. We submitted these catalysts to an electroreduction pre-treatment at −1.25 and −3 VAg/AgCl, respectively yielding a smooth oxide rich surface and an oxide poor surface covered in nanoparticles (30 to 70 nm diameter). The creation of spherical nanoparticles by electroreduction of tin oxide at −3 VAg/AgCl in an aqueous carbonate solution has, to our knowledge, never been reported. These two pre-treated catalysts, in conjunction with the un-pretreated surface, were simultaneously characterized by SECM, determining their CO2RF electrocatalytic activity relative to each other. The cyclic voltammetry (CV) tip detection mode provided product selective activity data for three different reaction products: formate, CO and H₂. We demonstrated that pre-electroreduction at −1.25 VAg/AgCl formed a surface with improved selectivity toward CO2RF. We also discussed the effect of SECM experimental parameters on the success of CO2RR catalyst characterization, as well as the challenges and limitations of the method. Our development in SECM opens the door to automated screening of CO2RR catalyst, which dovetails with the recent advances in model-based computational catalyst screening. While high screening throughput can be achieved using these various theoretical methods, they depend on experimental catalyst characterization and screening to validate their models. By automating the slowest step of the process, the experimental bottleneck on catalyst screening can hopefully be alleviated.
title: Ð Ð°ÑÑÐµÑ Ð¸ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ¸Ð»Ð¸Ð½Ð´ÑÐ° Ð½Ð¸Ð·ÐºÐ¾Ð³Ð¾ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿Ð°ÑÐ¾ÑÑÑÐ±Ð¸Ð½Ð½Ð¾Ð¹ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸ Ð-1200-23,5
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: Calculation and calculation of the pressure cylinder of the steam turbine plant K-1200-23.5
Creators: name: Ð¢Ð°Ð»Ð°Ð±Ð¸ÑÐ°, ÐÐ²Ð°Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: Ð¿Ð°ÑÐ¾ÑÑÑÐ±Ð¸Ð½Ð½Ð°Ñ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ°
ÑÐ¸Ð»Ð¸Ð½Ð´Ñ Ð½Ð¸Ð·ÐºÐ¾Ð³Ð¾ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ
Ðº-1200
ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ð¹ ÑÐ°ÑÑÐµÑ
Ð³Ð°Ð·Ð¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ°ÑÑÐµÑ
Ð¿ÑÐ¾ÑÐ¸Ð»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð»Ð¾Ð¿Ð°ÑÐºÐ¸
Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ½Ð¾Ð¹ ÑÐ°ÑÑÐµÑ
Ð²Ð»Ð°Ð¶Ð½Ð¾Ð¿Ð°ÑÐ¾Ð²Ð°Ñ ÑÑÐ¾Ð·Ð¸Ñ
steam turbine
low pressure cylinder
k-1200
thermal calculation
gas-dynamic calculation
blade profiling
strength calculation
wet-steam erosion

description: Ð Ð°Ð±Ð¾ÑÐ° ÑÐ¾ÑÑÐ¾Ð¸Ñ Ð¸Ð· Ð²Ð²ÐµÐ´ÐµÐ½Ð¸Ñ, 6 Ð³Ð»Ð°Ð² Ð¸ Ð·Ð°ÐºÐ»ÑÑÐµÐ½Ð¸Ñ. ÐÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ ÑÐ°ÑÑÐµÑ ÑÐ¸Ð»Ð¸Ð½Ð´ÑÐ° ÑÑÐµÐ´Ð½ÐµÐ³Ð¾ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿Ð°ÑÐ¾Ð²Ð¾Ð¹ ÑÑÑÐ±Ð¸Ð½Ñ Ð½Ð° Ð±Ð°Ð·Ðµ Ð¿ÑÐ¾ÑÐ¾ÑÐ¸Ð¿Ð° Ð-1200-240-3, ÐºÐ¾ÑÐ¾ÑÑÐ¹ Ð²ÐºÐ»ÑÑÐ°ÐµÑ Ð² ÑÐµÐ±Ñ ÑÐ°ÑÑÐµÑ ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ð¹ ÑÑÐµÐ¼Ñ Ð¿Ð°ÑÐ¾ÑÑÑÐ±Ð¸Ð½Ð½Ð¾Ð¹ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸, Ð³Ð°Ð·Ð¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ°ÑÑÐµÑ Ð¿Ð¾ ÑÑÐµÐ´Ð½ÐµÐ¼Ñ Ð´Ð¸Ð°Ð¼ÐµÑÑÑ, ÑÐ°ÑÑÐµÑ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² Ð¿Ð¾ÑÐ¾ÐºÐ° Ð¿Ð¾ÑÐ»ÐµÐ´Ð½ÐµÐ¹ ÑÑÑÐ¿ÐµÐ½Ð¸ ÑÐ¸Ð»Ð¸Ð½Ð´ÑÐ°, Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ½Ð¾Ð¹ ÑÐ°ÑÑÐµÑ Ð»Ð¾Ð¿Ð°ÑÐºÐ¸ Ð¸ ÑÐ¾ÑÐ¾ÑÐ°. Ð¢Ð°ÐºÐ¶Ðµ Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÑÐ½ ÑÐ°ÑÑÑÑ ÐºÐ°Ð¿ÐµÐ»Ñ Ð² Ð¿Ð¾ÑÐ»ÐµÐ´Ð½ÐµÐ¹ ÑÑÑÐ¿ÐµÐ½Ð¸ Ð¦ÐÐ.
description: The work consists of instructions, 6 chapters and review. The calculation of the medium pressure cylinder of the steam turbine on the prototype K-1200-240-3 was made, which includes the calculation of the scheme of the steam turbine plant, gas-dynamic calculation by the average diameter, calculation of the speed parameters of the cylinder stage, strength calculation of the blade and rotor. The droplets in the last stage of the LPC were also calculated.
A Census of White Dwarfs Within 40 Parsecs of the Sun
Creators: name: Limoges, M. -M.
name: Bergeron, P.
name: Lepine, Sebastien
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Our aim is to compile a catalog of white dwarfs within 40 parsecs of the Sun, in which newly discovered objects would significantly increase the completeness of the current census. White dwarf candidates are identified from the SUPERBLINK proper motion database (Lepine & Shara 2005), which allows us to investigate stars down to a proper motion limit as low as 40 mas yr-1. The selection criteria and distance estimates are based on a combination of color-magnitude and reduced proper motion diagrams. Candidates with distances less than 50 parsecs are selected for spectroscopic follow-up. We present our preliminary sample of spectroscopically confirmed white dwarfs, as well as their atmospheric parameters. These parameters are obtained using the spectroscopic technique developed in Bergeron et al.(1992) for DA stars. DB, DQ, and DZ stars are also analyzed spectroscopically. For featureless spectra as well as those showing only Halpha, we perform a detailed photometric analysis of their energy distribution.
description: 4 pages, 3 figures, to appear in AIP Conference Proceedings for the 17th European White Dwarf Workshop
Qualità del sonno nei preadolescenti: effetti sul benessere fisico, caratteristiche psicologiche e successo scolastico
Creators: name: Crivelli, Giacomo
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2017

description: Il presente lavoro di ricerca si è focalizzato sullo studio dell’igiene del sonno nei preadolescenti ticinesi e dei suoi effetti sul benessere fisico, sulle caratteristiche psicologiche (i.e., ottimismo, autostima, e sintomi depressivi), e sul successo scolastico (i.e., sentimento d’autoefficacia) mediante la somministrazione del questionario Middle Years Development Instrument (MDI) negli allievi delle classi del primo biennio di scuola media del Cantone Ticino (n = 545, età media = 11.6 ± 2 anni). L’igiene di sonno è correlata positivamente con l’ottimismo (r = .39), ed è correlata negativamente con l’apparizione di sintomi depressivi (r = -.34) (tutti i valori di P < 0.001). I livelli d’autostima e d’autoefficacia, così come lo stato di salute generale, risulterebbero invece solo debolmente associati all’igiene del sonno nei preadolescenti. In conclusione, l’adozione di una buona igiene di sonno da parte dei preadolescenti influisce positivamente sulle caratteristiche psicologiche della persona promuovendo la visione ottimistica e proteggendo contro l’insorgere di sintomi depressivi, entrambi fattori essenziali per favorire lo sviluppo positivo dell’individuo ed un senso di benessere generale. Materia: scienze dell'educazione
Analysis of Nonlinear Electromagnetic Metamaterials
Creators: name: Poutrina, Ekaterina
name: Huang, Da
name: Smith, David R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We analyze the properties of a nonlinear metamaterial formed by integrating nonlinear components or materials into the capacitive regions of metamaterial elements. A straightforward homogenization procedure leads to general expressions for the nonlinear susceptibilities of the composite metamaterial medium. The expressions are convenient, as they enable inhomogeneous system of scattering elements to be described as a continuous medium using the standard notation of nonlinear optics. We illustrate the validity and accuracy of our theoretical framework by performing measurements on a fabricated metamaterial sample composed of an array of split ring resonators (SRRs) with packaged varactors embedded in the capacitive gaps in a manner similar to that of Wang et al. [Opt. Express 16, 16058 (2008)]. Because the SRRs exhibit a predominant magnetic response to electromagnetic fields, the varactor-loaded SRR composite can be described as a magnetic material with nonlinear terms in its effective magnetic susceptibility. Treating the composite as a nonlinear effective medium, we can quantitatively assess the performance of the medium to enhance and facilitate nonlinear processes, including second harmonic generation, three- and four-wave mixing, self-focusing and other well-known nonlinear phenomena. We illustrate the accuracy of our approach by predicting the intensity-dependent resonance frequency shift in the effective permeability of the varactor-loaded SRR medium and comparing with experimental measurements.
description: 22 pages, 8 figures