cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Resonances On-Demand for Plasmonic Nano-Particles
Creators: name: Ginzburg, Pavel
name: Shor, Itay
name: Berkovitch, Nikolai
name: Nevet, Amir
name: Orenstein, Meir
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A method for designing plasmonic particles with desired resonance spectra is presented. The method is based on repetitive perturbations of an initial particle shape while calculating the eigenvalues of the various quasistatic resonances. The method is rigorously proved, assuring a solution exists for any required spectral resonance location. Resonances spanning the visible and the near-infrared regimes, as designed by our method, are verified using finite-difference time-domain simulations. A novel family of particles with collocated dipole-quadrupole resonances is designed, demonstrating the unique power of the method. Such on-demand engineering enables strict realization of nano-antennas and metamaterials for various applications requiring specific spectral functions.
Stochastic multi-objective economic model predictive control of two-stage high consistency mechanical pulping processes
Creators: name: Tian, Hui
Publisher: name: University of British Columbia
Year: 2020

description: Model predictive control (MPC) has attracted considerable research efforts and has been widely applied in various industrial processes. This thesis aims at developing economic MPC (econ MPC) strategies to optimize and control the nonlinear mechanical pulping (MP) process with two high consistency (HC) refiners, which is one of the most energy intensive processes in the pulp and paper industry. It possesses substantial economic motives and environmental benefits to develop advanced control techniques to reduce the energy consumption of MP processes. We propose four econ MPC schemes for nonlinear MP processes. Firstly, assuming that all the state variables are directly measurable, two different econ MPC schemes are proposed by adding different penalties on the state and input to ensure the closed-loop stability and convergence. Secondly, to address the issue of state variable off-sets from the steady-state target induced by above schemes, we further propose a multi-objective economic MPC (m-econ MPC) strategy. An auxiliary MPC controller and a stabilizing constraint are incorporated into the econ MPC. The stability of econ MPC is then achieved by preserving the inherent stability of the auxiliary MPC controller. Thirdly, to remove the assumption that all state variables are measurable, a moving horizon estimator (MHE) is employed to estimate the unmeasurable states. We then propose a practical framework integrating the m-econ MPC and MHE. Finally, we develop a tractable approximation for stochastic MPC (SMPC) to handle uncertainties associated with state variables. It can largely reduce the conservativeness or numerical instability incurred in robust or chance constraints of the traditional SMPC. The effectiveness of the proposed algorithms is validated by simulation examples of a nonlinear MP process consisting of a primary and a secondary HC refiner. It is shown that the proposed m-econ MPC schemes can significantly reduce the energy consumption (approximately 10\%-27\%) and guarantee the closed-loop stability and convergence. Therefore, the proposed methodology presents a great promise on practically implementing m-econ MPC to save costs for MP processes.
DEVELOPMENT OF A DOUGH KNEADING MACHINE WITH THREE DIFFERENT DETACHABLE BEATERS
Creators: name: Adeleke, Olumide
name: Sunmonu, Musliu Olushola
name: mayowa, Sanusi
Publisher: name: figshare
Year: 2021
Subjects: subject: 90802 Food Engineering
subject: FOS: Other engineering and technologies

description: Dough kneading is an essential operation which enhances the development of gluten that gives bread its structure. Manual dough kneading is laborious, energy-sapping and time consuming, even at a small-scale level of production. This study focused on the development of dough kneading machine and evaluation of the effects of different beater type (elbow, flat and wired) on the physical qualities of bread.
Using Faraday Rotation to Probe MHD Instabilities in Intracluster Media
Creators: name: Bogdanovic, Tamara
name: Reynolds, Christopher
name: Massey, Richard
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: It has recently been suggested that conduction-driven magnetohydrodynamic (MHD) instabilities may operate at all radii within an intracluster medium (ICM), and profoundly affect the structure of a cluster's magnetic field. Where MHD instabilities dominate the dynamics of an ICM, they will re-orient magnetic field lines perpendicular to the temperature gradient inside a cooling core, or parallel to the temperature gradient outside it. This characteristic structure of magnetic field could be probed by measurements of polarized radio emission from background sources. Motivated by this possibility we have constructed 3-d models of a magnetized cooling core cluster and calculated Faraday rotation measure (RM) maps in the plane of the sky under realistic observing conditions. We compare a scenario in which magnetic field geometry is characterized by conduction driven MHD instabilities to that where it is determined by isotropic turbulent motions. We find that future high-sensitivity spectro-polarimetric measurements of RM, such as will be enabled by the Expanded Very Large Array and Square Kilometer Array can distinguish between these two cases with plausible exposure times. Such observations will test the existence of conduction-driven MHD instabilities in dynamically relaxed cooling core clusters. More generally, our findings imply that observations of Faraday RM should be able to discern physical mechanisms that result in qualitatively different magnetic field topologies, without a priori knowledge about the nature of the processes.
description: Accepted to ApJ. Includes modeled observational scenarios for EVLA. 11 pages, 7 figures, 1 table
title: Correlation of preoperative volume of oral tongue squamous cell carcinoma (SCC) on CT scan with post-surgical tumour size.
Creators: name: Kumar, Ameet
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Head and neck
subject: Oncology
subject: CT
subject: Contrast agent-intravenous
subject: Neoplasia

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Computed tomography (CT) radiological investigation is commonly used worldwide as a reliable method for determining the existence of oral tongue squamous cell carcinoma. This research was carried out to determine the correlation between the...
title: Role of PET CT in movement disorders – A Pictorial Essay.
Creators: name: pottala, krishna mohan
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: CNS
subject: Hybrid Imaging
subject: Nuclear medicine
subject: PET-CT
subject: Diagnostic procedure
subject: Dementia

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Idiopathic Parkinson's disease (IPD) is the second most common neurodegenerative disoder after Alzhiemer's disease (AD). IPD is a slow progressive disease characterized by degeneration of dopaminergic neurons in the substantia nigra. In the early...
title: Polymorphism of neuroinfections in the immunocompromised patient - pictorial review
Creators: name: Pele, Dan
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Neuroradiology brain
subject: MR
subject: Contrast agent-intravenous
subject: AIDS

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: The purpose of this poster is to highlight the varied magnetic resonance imaging (MRI) aspects in brain infectious pathology in the immunocompromised...
title: Photon-counting CT location and pose estimation of micro-robots for minimally invasive robotic surgery: a feasibility study
Creators: name: Holmes, Thomas
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Interventional non-vascular
subject: CT
subject: Physics
subject: Cancer

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Photon-counting detectors (PCD) promise improved spatial resolution (150 microns), image contrast, reduced radiation dose, and material differentiation via K-edge imaging. The combination of these advantages may be used in minimally-invasive brain...
title: Multimodality imaging of circulatory support devices: a pictorial essay
Creators: name: Kuwazuru, Thais
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Cardiac
subject: Cardiovascular system
subject: CT
subject: Ultrasound
subject: Ultrasound-Colour Doppler
subject: Complications
subject: Cardiac Assist Devices

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Circulatory support devices – such as ventricular assist devices, extracorporeal membrane oxygenation (ECMO) and intraaortic balloon pumps – have been developed to give circulatory support to critically ill patients. This presentation aims to...
Characterizing Operations Preserving Separability Measures via Linear Preserver Problems
Creators: name: Johnston, Nathaniel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We use classical results from the theory of linear preserver problems to characterize operators that send the set of pure states with Schmidt rank no greater than k back into itself, extending known results characterizing operators that send separable pure states to separable pure states. We also provide a new proof of an analogous statement in the multipartite setting. We use these results to develop a bipartite version of a classical result about the structure of maps that preserve rank-1 operators and then characterize the isometries for two families of norms that have recently been studied in quantum information theory. We see in particular that for k at least 2 the operator norms induced by states with Schmidt rank k are invariant only under local unitaries, the swap operator and the transpose map. However, in the k = 1 case there is an additional isometry: the partial transpose map.
description: 16 pages, typos corrected, references added, proof of Theorem 4.3 simplified and clarified
title: Ð£Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ Ð²ÑÐ°ÑÐµÐ½Ð¸ÐµÐ¼ Ð´ÐµÐºÐ¾ÑÐ°ÑÐ¸Ð¹
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: Scenery rotation control
Creators: name: ÐÑÑÐ¾ÑÐºÐ¸Ð½Ð°, ÐÐ°Ð»ÐµÐ½ÑÐ¸Ð½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: Ð¡ÑÐµÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÐºÑÑÐ³
Ð½Ð°ÐºÐ»Ð°Ð´Ð½Ð¾Ð¹ Ð¿Ð¾Ð²Ð¾ÑÐ¾ÑÐ½ÑÐ¹ ÐºÑÑÐ³
Ð¼Ð¾Ð´ÑÐ»ÑÐ½Ð¾Ðµ Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¾Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
SEW EURODRIVE MOVITOOLS
Stage turntable
surface-mounted revolving stage
modular positioning

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸ÑÂ ÑÑÐµÐ½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÐºÑÑÐ³Ð°. Ð ÑÐ¾Ð´Ðµ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð±ÑÐ» Ð¸Ð·ÑÑÐµÐ½ Ð¼ÐµÑÐ°Ð½Ð¸Ð·Ð¼Â Ð²ÑÐ°ÑÐµÐ½Ð¸Ñ Ð¿Ð¾Ð²Ð¾ÑÐ¾ÑÐ½Ð¾Ð³Ð¾ ÐºÑÑÐ³Ð° Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ñ Ð¼ÐµÑÐ¾Ð´Ñ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð²ÑÐ°ÑÐµÐ½Ð¸ÑÂ Ð¿Ð¾Ð²Ð¾ÑÐ¾ÑÐ½Ð¾Ð³Ð¾ ÐºÑÑÐ³Ð°. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð´Ð°Ð½Ð½ÑÑ Ð±ÑÐ» Ð²ÑÐ±ÑÐ°Ð½Â Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½ÑÐ¹ ÑÐ¿Ð¾ÑÐ¾Ð± Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ Ð¸ Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¾Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸ÑÂ Ð¿Ð¾Ð²Ð¾ÑÐ¾ÑÐ½Ð¾Ð³Ð¾ ÐºÑÑÐ³Ð° Ð¸ Ð±ÑÐ»Ð¸ Ð¸Ð·ÑÑÐµÐ½Ñ ÐµÐ³Ð¾ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÐ¸.
description: The work is devoted to the study of the automation of the revolving stageÂ motion. The research considers the mechanism of rotation of the turntable andÂ studies the methods of automation of the turntable's rotation. Based on the dataÂ obtained, the optimal way to automate the movement and positioning of the turntableÂ was selected and its capabilities were studied.
title: DEXA is not reliable for assessment of visceral fat in very young normal-weight children - an MRI validation study.
Creators: name: Palonen, Riina
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Abdomen
subject: Cardiovascular system
subject: Paediatric
subject: Absorptiometry / Bone densitometry
subject: MR
subject: Comparative studies
subject: Technology assessment
subject: Metabolic disorders
subject: Tissue characterisation

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: We assessed the reliability of D ual- e nergy X-ray a bsorptiometry ( DEXA ) for pediatric cardiometabolic studies against MRI. Accumulation of visceral fat, in particular, is viewed as a significant factor for adverse cardiometabolic morbidity....
Parameterization of General Z-gamma-Z' Mixings in an Electroweak Chiral Theory
Creators: name: Zhang, Ying
name: Wang, Qing
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A new general parameterization with eight mixing parameters among Z, gamma and an extra neutral gauge boson Z' is proposed and subjected to phenomenological analysis. We show that in addition to the conventional Weinberg angle theta_W, there are seven other phenomenological parameters G', xi, eta, theta_l, theta_r, r, l for the most general Z-gamma-Z' mixings, in which parameter G' arises due to the presence of an extra Stueckelberg-type mass coupling. Combined with the conventional Z-Z' mass mixing angle theta', the remaining six parameters xi, eta, theta_l-theta', theta_r-theta', r, l are caused by general kinetic mixings. In all the eight phenomenological parameters theta_W, G', xi, eta, theta_l, theta_r, r, l, we can determine the Z-Z' mass mixing angle theta' and the mass ratio M_Z/M_Z'. The Z-gamma-Z' mixings we discuss are based on the model-independent description of the extended electroweak chiral Lagrangian (EWCL) previous proposed by us. In addition, we show that there are eight corresponding independent theoretical coefficients in our EWCL which are fully fixed by our eight phenomenological mixing parameters. We further find that the experimental measurability of these eight parameters does not rely on the extended neutral current for Z', but depends on the Z-Z' mass ratio.
description: 14 pages
title: Disco-vertebral biopsy and factors affecting yield in vertebral discitis-osteomyelitis
Creators: name: Chartier, Guerric
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Interventional non-vascular
subject: Percutaneous
subject: Biopsy
subject: Infection

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: The use of disco-vertebral biopsy in infectious vertebral discitis-osteomyelitis (VDO) has recently been challenged, because of a low and heterogeneous yield reported (31-91%) in theliterature. The objective of this study was to estimate the yield...
Light scalar susceptibilities and the $π^0-η$ mixing
Creators: name: Andres, R. Torres
name: Nicola, A. Gomez
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have performed a thermal analysis of the light scalar susceptibilities in the context of SU(3)-Chiral Perturbation Theory to one loop taking into account the QCD source of isospin breaking (IB), i.e corrections coming from $m_u\neq m_d$. We find that the value of the connected scalar susceptibility in the infrared regime and below the critical temperature is entirely dominated by the $π^0-η$ mixing, which leads to model-independent $\mathcal{O}(ε^0)$ corrections, where $ε\sim m_d-m_u$, in the combination $χ_{uu}-χ_{ud}$ of flavour breaking susceptibilities.
description: Proceedings of the "Quark Confinement and Hadron Spectrum IX", Madrid, Spain, August 30th-September 3rd 2010. 3 pages, 2 figures. AIP Proceedings style
title: Development of a Subsurface Water Velocity and Quality Measurement Payload for sUAS
Creators: name: Bailey, Mitchell
Publisher: name: Utah State University
Year: 2024

description: Aquaculture farms, like oyster farms, often use outdated techniques to measure the quality of their waters. These techniques are often stationary or are deployed by an operator who may struggle to reach a location depending on conditions like the presence of a storm or low tide. This creates data sets with gaps over time and across the area of the farm, meaning the data cannot be used to model the standard farm conditions. An Uncrewed Aerial System (UAS) payload is developed in this paper that is capable of measuring depth-velocity profiles through the use of a tethered velocity sensor. The tether is able to detach from the UAS through a magnetic release to ensure UAS safety. Controlled water flumes helped in the reverse-engineering of the sensor's communication protocol. Tests in irrigation canals demonstrate the payload's ability to measure in place of the traditional datalogger with less than 3% mean error. The payload was able to successfully measure the velocity of a coastal water channel when deployed from a bridge with less than 2% mean error. The payload was able to be deployed on a UAS in under 15 minutes by one person, which is much faster than other water velocity measurement methods. The payload was able to measure around 10 locations per flight and was moderately successful at measuring the depth-velocity profile of the locations. When the sensor was properly aligned in the direction of the water flow, the sensor had mean errors as low as 4%. However, misalignment and low sample count caused other locations to have errors as high as 31%. Low sample count is easily solved through the use of better depth control and longer sampling times. Future work needs to be done on sensor orientation control to limit that source of error.
title: Developmental abnormalities of the inferior vena cava and its branches.
Creators: name: Díez, Manuel
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Veins / Vena cava
subject: CT
subject: CT-Angiography
subject: MR
subject: Normal variants
subject: Arteriovenous malformations

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: - Describe the most frequent normality variants found in the inferior vena cava (IVC) and its branches and their relationship with embryogenesis. - Review the most frequent radiological findings and the most appropriate diagnostic tests. - Show the...
title: ÐÐ¾Ð²ÑÑÐµÐ½Ð¸Ðµ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐ½Ð¾ÑÑÐ¸ Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ° ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ½ÐµÑÐ³Ð¸Ð¸ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÑÑÐ±Ð¾Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾ÑÐ° Ð´Ð»Ñ Ð³Ð°Ð·Ð¾ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»Ð¸ÑÐµÐ»ÑÐ½ÑÑ Ð¿ÑÐ½ÐºÑÐ¾Ð²
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Increasing the efficiency of the electric power source energy based on a turbo generator for gas distribution points
Creators: name: ÐÐµÑÐµÑÑÐºÐ¸Ð¹, 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: 2022
Subjects: Ð¢ÑÑÐ±Ð¾Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾ÑÑ
ÐÐ°Ð·Ð¾ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»Ð¸ÑÐµÐ»ÑÐ½ÑÐµ ÑÑÐ°Ð½ÑÐ¸Ð¸
Ð­Ð»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ°Ñ ÑÐ½ÐµÑÐ³Ð¸Ñ

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°Ð·Ð¾Ð±ÑÐ°Ð½Ð¾ Ð¿Ð¾Ð½ÑÑÐ¸Ðµ ÑÑÑÐ±Ð¾Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾ÑÐ° ÐºÐ°Ðº Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ° ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ½ÐµÑÐ³Ð¸Ð¸, ÐµÐ³Ð¾ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ñ. ÐÑÐ¾Ð¼Ðµ ÑÐ¾Ð³Ð¾, Ð¸Ð·Ð»Ð¾Ð¶ÐµÐ½ Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿ ÑÐ°Ð±Ð¾ÑÑ Ð¸ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ Ð² ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÐºÐµ Ð¿Ð¾Ð´Ð¾Ð±Ð½ÑÑ ÑÑÑÐ°Ð½Ð¾Ð²Ð¾Ðº. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð±ÑÐ»Ð¸ Ð¼ÐµÑÐ¾Ð´Ñ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ Ð½Ð°Ð´ÐµÐ¶Ð½Ð¾ÑÑÐ¸ Ð¸ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐ½Ð¾ÑÑÐ¸ ÑÐµÐ¶Ð¸Ð¼Ð¾Ð² ÑÑÑÐ±Ð¾Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾ÑÐ°. Ð¢Ð°ÐºÐ¶Ðµ Ð¿Ð¾Ð´ÑÐ¾Ð±Ð½Ð¾ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ð¾ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð¾, Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿ ÑÐ°Ð±Ð¾ÑÑ Ð¸ ÑÐºÑÐ¿Ð»ÑÐ°ÑÐ°ÑÐ¸Ð¸ Ð³Ð°Ð·Ð¾ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»Ð¸ÑÐµÐ»ÑÐ½ÑÑ Ð¿ÑÐ½ÐºÑÐ¾Ð² (ÐÐ Ð).
description: In this paper, the concept of a turbo generator as a source of electrical energy, its design is analyzed. In addition, the principle of operation and application of such installations in the energy sector are described. Methods of increasing the reliability and efficiency of turbo generator modes were considered. The device, the principle of operation and operation of gas distribution points (GDP) are also presented in details.
Numerical Nahm transform for 2-caloron solutions
Creators: name: Muranaka, Daichi
name: Nakamula, Atsushi
name: Sawado, Nobuyuki
name: Toda, Kouichi
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A new numerical method for performing the Nahm transform for charge $k=2$ caloron is presented. The Weyl equations with boundary impurities are solved directly and the determination of the appropriate basis to the linear system is established. The action densities of the 2-calorons with 10 moduli parameters are shown.
description: 8 pages, 4 figures, 1 table, v2: coincides with Phys.Lett.B version
title: Vascular Complications In acute Cholecystitis. MDCT findings
Creators: name: Sandomenico, Fabio
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Abdomen
subject: Biliary Tract / Gallbladder
subject: Emergency
subject: CT
subject: Abscess delineation
subject: Complications
subject: Diagnostic procedure
subject: Haemodynamics / Flow dynamics
subject: Haemorrhage
subject: Inflammation

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Acute cholecystitis represents one of the most common surgical pathologies that should always be considered in an emergency with right upper abdominal pain. Nevertheless, a significant percentage of patients with acute cholecystitis admitted to ED...
The Nature of the Fornax 6 Globular Cluster with Magellan/M2FS Spectroscopy
Creators: name: Pace, Andrew B.
Publisher: name: Zenodo
Year: 2021

description: The Fornax dwarf spheroidal galaxy is one of the most massive dwarf galaxy satellites of the Milky Way. Fornax is unusual in its large number of globular clusters relative to its stellar mass and to their survival over Hubble time is an open question. Recently, the 6th globular cluster was re-discovered based on DECam imaging from the Dark Energy Survey and astrometry/photometry from Gaia. Here I present follow-up Magellan/M2FS spectroscopy of the Fornax 6 cluster and the Fornax dSph. Combined with literature data, I am able to identify 15-17 members of the Fornax 6 cluster confirming that it is both a star cluster and associated with the Fornax dSph. I measure a mean metallicity of [Fe/H]=-0.7 making it the most metal-rich of Fornax globular clusters (-1.4 < [Fe/H] < -2.5) and it is more metal-rich than the bulk of the dSph stars. Based on its metal-rich nature, the Fornax 6 cluster is likely younger than the other Fornax clusters, with an estimated age of ~2 Gyr when compared to stellar isochrones. The metallicity and luminosity of the Fornax 6 cluster is similar to the metal-rich Sagittarius globular clusters. Understanding the Fornax globular cluster system will provide insights into the dark matter distribution of Fornax and the formation and evolution of the system.
The Kondo crossover in shot noise of a single quantum dot with orbital degeneracy
Creators: name: Sakano, Rui
name: Fujii, Tatsuya
name: Oguri, Akira
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate out of equilibrium transport through an orbital Kondo system realized in a single quantum dot, described by the multiorbital impurity Anderson model. Shot noise and current are calculated up to the third order in bias voltage in the particle-hole symmetric case, using the renormalized perturbation theory. The derived expressions are asymptotically exact at low energies. The resulting Fano factor of the backscattering current $F_b$ is expressed in terms of the Wilson ratio $R$ and the orbital degeneracy $N$ as $F_b =\frac{1 + 9(N-1)(R-1)^2}{1 + 5(N-1)(R-1)^2}$ at zero temperature. Then, for small Coulomb repulsions $U$, we calculate the Fano factor exactly up to terms of order $U^5$, and also carry out the numerical renormalization group calculation for intermediate $U$ in the case of two- and four-fold degeneracy ($N=2,\,4$). As $U$ increases, the charge fluctuation in the dot is suppressed, and the Fano factor varies rapidly from the noninteracting value $F_b=1$ to the value in the Kondo limit $F_b=\frac{N+8}{N+4}$, near the crossover region $U\sim πΓ$, with the energy scale of the hybridization $Γ$.
description: 10 pages, 4 figures
Zebrafish as a model to study beta-cell development and regeneration
Creators: name: Toselli, Maria Chiara
Publisher: name: University of British Columbia
Year: 2020

description: Diabetes is characterized by insufficient amounts of insulin, a hormone produced by the beta-cells in the pancreatic islets. While current treatment options such as insulin injections provide a way to manage blood glucose levels, these methods provide suboptimal glucose control. Islet transplantation shows significant therapeutic promise, but the lack of available islets is an obstacle for this therapy. Restoration of beta-cell mass through cell therapy or stimulation of endogenous regeneration to replace beta-cell loss and dysfunction could potentially cure diabetes. Hence, investigating beta-cell development and regeneration is extremely valuable. Because zebrafish and mammalian pancreas development are highly conserved, we utilized zebrafish as a model to study beta-cell development and regeneration in the work described in this thesis. We developed and characterized a lineage tracing model that allowed us to differentiate beta-cells arising from the dorsal and ventral pancreatic buds. We lineage traced the dorsal bud derived beta-cells during development until the adult stage. While we observed that dorsal bud derived beta-cells constitute a small percentage of the total beta-cells in the adult pancreas, we did not identify transcriptional differences between beta-cells that arise from dorsal and ventral pancreatic buds, suggesting that developmental origin does not dictate transcriptional profile. Second, we characterized the role of islet vessels during beta-cell formation. We found that islet vessels are dispensable for alpha-cell and beta-cell development. Finally, we determined the cell sources important in beta-cell maintenance and regeneration. We observed that beta-cell proliferation is the main mechanism of beta-cell maintenance in the adult zebrafish, but that a non-beta-cell source may contribute to beta-cell regeneration. By providing a better understanding of zebrafish beta-cell development and regeneration, the findings in this thesis may help guide cell therapies and regenerative strategies for diabetes.
title: Morphometric Measurements in Pediatric Radiology - How to adjust dose?
Creators: name: Wurm, Martin
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Paediatric
subject: Radiation physics
subject: Radioprotection / Radiation dose
subject: Digital radiography
subject: Radiation effects
subject: Radiation safety
subject: Biological effects
subject: Dosimetric comparison

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Aims Applied doses in pediatric radiology always have to be as low as reasonably achievable (ALARA principle) to reduce cancer risk in further life 1 .The increased radiosensitivity of children regarding the development of radiation-induced changes...
Automatic procedure for deriving open cluster metallicities
Creators: name: Piecka, Martin
Publisher: name: Zenodo
Year: 2021
Subjects: open clusters
Gaia
metallicity

description: A new fully automatic procedure capable of computing the four main cluster parameters (distance, reddening, age, metallicity) has been developed. The approach is based on the the work by Pöhnl & Paunzen (2010) and, therefore, focuses primarily on determining metallicities of open clusters. The procedure can been applied to the cluster data from different photometric systems (currently included: Johnson BV, 2MASS JKs, Gaia GBpRp). Thanks to the Gaia mission, there has been an increase in the number of known clusters. Together with the advances in the membership probability determination, and due to the overall improvement in the open cluster data quality, metallicity determination based on the photometric data may become more available than ever before.
description: This work was supported from Operational Programme Research, Development and Education – "Project Internal Grant Agency of Masaryk University" (No. CZ.02.2.69/0.0/0.0/19_073/0016943)
"Twinkle, Twinkle Little Stars"— The Importance of Finding RR Lyrae Stars in Ultra-Faint Dwarf Galaxies
Creators: name: Martinez-Vazquez, Clara E.
name: Vivas, A. Katherina
name: Walker, Alistair R.
Publisher: name: Zenodo
Year: 2021
Subjects: Dwarf galaxies (416), Stellar astronomy (1583), Local Group (929), Time domain astronomy (2109), Variable stars (1761), Pulsating variable stars (1307), RR Lyrae variable stars (1410)

description: In the last decade, wide-area multi-band optical imaging surveys such as SDSS, DES, SMASH, MagLiteS, DELVE, ATLAS, Pans-STARRS1, and Gaia have contributed to the discovery of more than 50 ultra-faint dwarf galaxies (UFDs, MV > —8 mag), satellites of the Milky Way, which were undetectable in the past. The low mass, the scarcity of stars and the large contamination by field stars make the determination of morphological parameters and distances for these galaxies a challenging task. An attractive method to improve the distance determination to these UFDs —and thus to clarify their nature— is to find RR Lyrae (RRL) star members. As pulsating variable stars with periods ranging from 0.2 to 1.2 days, RRLs are readily identifiable with suitable time-series photometry. Since RRLs obey well-calibrated period-luminosity relations, they are an excellent distance indicator, and are observable throughout the Local Group. Moreover, since RRLs are older than 10 Gyr, they can also provide insight on the properties of the old stellar population in any systems in which they are found. Our team has concentrated on increasing the census of RRLs in UFDs. We detected RRL members for the first time in several UFDs from time-domain studies made from ground-based telescopes (Martínez-Vázquez et al. 2019, 2021b,c) and using the Gaia DR2 RRL catalog (Vivas, Martínez-Vázquez & Walker, 2021). We also identify possible candidate extra-tidal RRLs in some of the UFDs. Furthermore, we made comprehensive and updated analysis of the number of RRLs in dwarf galaxies. This allows us to predict that the method of finding new UFDs by using two or more clumped RRLs will work only for systems brighter than MV ~ —5 mag. Finally, our works not only offer independent and accurate distances to the host but also provide clues about the contribution of UFDs in the formation of the halo of the Milky Way to ascertain how much of the long-period tail of field halo RRL stars can be attributed to disrupted UFDs.
The Fate of Planets
Creators: name: Villaver, Eva
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: As a star evolves off the Main Sequence, it endures major structural changes that are capable of determining the fate of the planets orbiting it. Throughout its evolution along the Red Giant Branch, the star increases its radius by two orders of magnitude. Later, during the Asymptotic Giant Branch, it loses most of its initial mass. Finally, during the Planetary Nebulae phase, it emits intense radiation before ultimately beginning its fade as a white dwarf. We show how the several competing processes (stellar mass-loss, gravitational and frictional drag, tidal forces, planet accretion and evaporation) affect the survival of planets around evolved stars.
description: Invited review "Planetary Systems beyond the Main Sequence" conference Part of PlanetsbeyondMS/2010 proceedings http://arxiv.org/html/1011.6606v1
Spacetime noncommutativity and ultra-high energy cosmic ray experiments
Creators: name: Horvat, R.
name: Kekez, D.
name: Trampetic, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: If new physics were capable to push the neutrino-nucleon inelastic cross section three orders of magnitude beyond the standard-model (SM) prediction, then ultra-high energy (UHE) neutrinos would have already been observed at neutrino observatories. We use such a constraint to reveal information on the scale of noncommutativity (NC) Lambda_NC in noncommutative gauge field theories (NCGFT) where neutrinos possess a tree-level coupling to photons in a generation-independent manner. In the energy range of interest (10^10 to 10^11 GeV) the theta-expansion (|theta| ~ 1/Lambda_NC^2) and therefore the perturbative expansion in terms of Lambda_NC retains no longer its meaningful character, forcing us to resort to those NC field-theoretical frameworks involving the full theta-resummation. Our numerical analysis of the contribution to the process coming from the photon exchange, pins impeccably down a lower bound on Lambda_NC to be as high as around up to 900 (450) TeV, depending on the estimates for the cosmogenic neutrino flux. If, on the other hand, one considers a surprising recent result occurred in Pierre Auger Observatory (PAO) data, that UHE cosmic rays are mainly composed of highly-ionized Fe nuclei, then our bounds get weaker, due to the diminished cosmic neutrino flux. Nevertheless, we show that even for the very high fraction of heavy nuclei in primary UHE cosmic rays, our method may still yield remarkable bounds on Lambda_NC, typically always above 200 TeV. Albeit, in this case one encounters a maximal value for the Fe fraction from which any useful information on Lambda_NC can be drawn, delimiting thus the applicability of our method.
description: v2: 5 pages, 2 eps figures; discussion expanded, some errors corrected; to appear in Phys.Rev. D
AVALIAÇÃO DA APRENDIZAGEM FORMATIVA COMO CONTRIBUTO AO ENSINO NO TEMPO DE PANDEMIA
Creators: name: França, Natália Digna S.
name: Almeida, Natália C.
name: Santos, Carla Crisleine C.
name: Silva, Walter Amorim B.
name: C.Freitas, VeraLúcia
Publisher: name: figshare
Year: 2021
Subjects: Education

description: Este trabalho objetiva analisar conhecimentos da avaliação da aprendizagem formativa, para contribuir com a discussão da Covid-19. A pesquisa é bibliográfica. A avaliação da aprendizagem como processo formativo, acompanhamento, respalda-se no pressuposto luckesiiano, quando trata da importância do diagnóstico para tomar decisões. Na pandemia, reconhecemos a importância de refletirmos sobre ensino aprendizagem-avaliação como elementos indissociável.
Symmetry of the CMB sky as a new test of its statistical isotropy. Non Cosmological Octupole?
Creators: name: Naselsky, P.
name: Hansen, M.
name: Kim, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In this article we propose a novel test for statistical anisotropy of the CMB. The test is based on the fact, that the Galactic foregrounds have a remarcably strong symmetry with respect to their antipodal points and with respect to the Galactic plane, while the cosmological signal should not be symmetric or asymmetric under these transitions. We have applied the test for the octupole component of the WMAP ILC 7 map, by looking at a_3,1 and a_3,3, and their ratio to a_3,2 both for real and imaginary values. We find abnormal symmetry of the octupole component at the level of 0.58%, compared to Monte Carlo simulations. By using the analysis of the phases of the octupole we found remarkably strong cross-correlations between the phases of kinematic dipole and ILC 7 octupole, in full agreement with previous results. We further test the multipole range 2
description: Slight modifications, based on proofread version from JCAP. 17 pages, 9 figures, 3 tables
title: Efficacy of image guided percutaneous discectomy under local anesthesia as an alternative to surgery for radiculopathy related to lumbar disc herniation
Creators: name: Burns, Robert
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Interventional non-vascular
subject: Percutaneous
subject: Efficacy studies
subject: Hernia

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: The current therapeutic strategy is mainly based on conservative treatments including in the first instance oral analgesics and steroid infiltrations, and only in case of failure, on surgery. Both treatments have limitations and risks. Prolonged use...
The Chemical Evolution of the Milky Way Galaxy
Creators: name: Kaur, Tejpreet
Publisher: name: Zenodo
Year: 2021
Subjects: ISM
Evolution
Abundance
Massive stars

description: The elemental abundance gradients of elements up to Zn are predicted using the N body Monte Carlo technique by developing homogenous and heterogeneous Galactic Chemical Evolution (GCE) simulations. In the case of homogeneous GCE models, the galaxy is radially divided into eight annular rings of 2 kpc width each at a distance of 2-18 kpc from the center of the galaxy. Also, to understand the localised abundance trends in the solar neighborhood, heterogeneous GCE simulations are performed by dividing the solar annular ring into independent grids which evolve over the galactic time scale.
Testes na plataforma KNoT: Uma análise qualitativa na perspectiva dos usuários
Creators: name: Júnior, Lazaro F; dos Santos
name: Santos, Thiago F. Silva
name: Fonseca, Jorge
name: Carvalho, Fernando
name: Santos, Wylliams Barbosa
Publisher: name: figshare
Year: 2021
Subjects: Computer Engineering

description: A plataforma KNoT foi concebida com o intuito de permitir interoperabilidade entre os dispositivos de IoT, facilitando a integração de múltiplas plataformas de hardware e software. Diante desse contexto, esse trabalho realizou uma análise qualitativa em relação as possibilidades de testes da plataforma KNoT na perspectiva dos usuários, de modo a aumentar a confiabilidade e qualidade da plataforma. Um estudo de caso e entrevistas foram conduzidas com colaboradores do SMART Labs. Ao término das análises, identificamos a necessidade de teste de performance, teste de carga, teste de segurança e teste de hardware para a meta-plataforma KNoT
title: Radiological Comparison of Tumor Burden of Lymphoma in HIV-positive and HIV negative patients
Creators: name: Loyal, Poonamjeet
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Lymph nodes
subject: CT
subject: Radiation therapy / Oncology
subject: Cancer

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: The purpose of this study was to evaluate the tumor burden of non-Hodgkin’s lymphoma in HIV-positive patients compared with HIV-negative and how this correlates with the clinicopathological parameters of aggressiveness and the overall clinical...
Stretched Polymers in Random Environment
Creators: name: Ioffe, Dmitry
name: Velenik, Yvan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We survey recent results and open questions on the ballistic phase of stretched polymers in both annealed and quenched random environments.
description: Dedicated to Erwin Bolthausen on the occasion of his 65th birthday
title: Primary peritoneal tumors
Creators: name: Maatoug, Feten
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Abdomen
subject: Oncology
subject: Peritoneum
subject: CT
subject: Biopsy
subject: Neoplasia

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To describe the pathologic features and to present the imaging findings of primary peritoneal...
Formação dos Estudantes para o Período Letivo Suplementar: Um projeto de Capacitação da UPE Caruaru
Creators: name: Neto, Leonides Medeiros
name: Santiago, João Gabriel de Lima
name: Lima, Mirele Moutinho
name: Freitas, Elyda Laisa Soares Xavier
name: Fortes, Sônia
Publisher: name: figshare
Year: 2021
Subjects: Education

description: Por meio deste artigo, objetiva-se socializar o processo de construção e execução de um projeto de extensão de estudantes para estudantes, em que se discutem tecnologias na educação superior, no processo de apropriação de informações para o ensino-aprendizagem em época de pandemia por COVID 19. A opção metodológica da experiência extensionista nasceu de um período de estudos exploratórios sobre tecnologias durante o distanciamento social, originando a criação de tutoriais para socialização no grupo, repercutindo em cursos para socializar entre os estudantes do Campus Caruaru da Universidade de Pernambuco. Como resultado, houve participação representativa dos estudantes do campus e avaliações positivas dos cursos oferecidos.
Propagating mode-I fracture in amorphous materials using the continuous random network (CRN) model
Creators: name: Heizler, Shay I
name: Kessler, David A.
name: Levine, Herbert
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study propagating mode-I fracture in two dimensional amorphous materials using atomistic simulations. We used the continuous random network (CRN) model of an amorphous material, creating samples using a two dimensional analogue of the WWW (Wooten, Winer & Weaire) Monte-Carlo algorithm. For modeling fracture, molecular-dynamics simulations were run on the resulting samples. The results of our simulations reproduce the main experimental features. In addition to achieving a steady-state crack under a constant driving displacement (which had not yet been achieved by other atomistic models for amorphous materials), the runs show micro-branching, which increases with driving, transitioning to macro-branching for the largest drivings. Beside the qualitative visual similarity of the simulated cracks to experiment, the simulation also succeeds in explaining the experimentally observed oscillations of the crack velocity.
title: Case series of fetal gynaecological pathologies in MRI
Creators: name: Dziechcinska-Poletek, Daria
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Foetal imaging
subject: Paediatric
subject: MR
subject: Education
subject: Intrauterine diagnosis
subject: Foetus

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: This is to present several MRI cases of gynaecological pathologies in the fetus. Ultrasound remains the mainstay of fetal diagnosis but MRI plays an important and growing role in both pre- and postnatal...
Análise de sentimento em base de rumores online sobre a COVID-19 em português brasileiro
Creators: name: Carvalho Monteiro, Kayo Henrique
name: Xavier, Maria Eduarda de Lima
name: Barros, Maicon Heverton Lino Ferreira da Silva
name: Endo, Patricia Takako
Publisher: name: figshare
Year: 2021
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: Instituições de saúde, como a Organização Mundial da Saúde (OMS), incluem algumas ferramentas de redes sociais (como Facebook, Twitter e outras) como parte crucial na divulgação de informações confiáveis sobre saúde, monitoramento de crises de saúde e contenção de boatos online. No Brasil, para combater a disseminação de notícias falsas, o Ministério da Saúde lançou um programa para verificar veracidade de mensagens online. No entanto, a complexidade de lidar com a comunicação durante uma crise de saúde é bastante alta, pois as mídias sociais, em comparação com as mídias tradicionais, são mais difíceis de monitorar, rastrear e analisar. Diante desse contexto, este trabalho apresenta uma análise sentimental a partir de um conjunto de dados composto por 1.285 rumores e não rumores em português do Brasil identificados por jornalistas e pelo Ministério da Saúde do Brasil.
Generalized Landau-Lifshitz models on the interval
Creators: name: Doikou, Anastasia
name: Karaiskos, Nikos
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We study the classical generalized gl(n) Landau-Lifshitz (L-L) model with special boundary conditions that preserve integrability. We explicitly derive the first non-trivial local integral of motion, which corresponds to the boundary Hamiltonian for the sl(2) L-L model. Novel expressions of the modified Lax pairs associated to the integrals of motion are also extracted. The relevant equations of motion with the corresponding boundary conditions are determined. Dynamical integrable boundary conditions are also examined within this spirit. Then the generalized isotropic and anisotropic gl(n) Landau-Lifshitz models are considered, and novel expressions of the boundary Hamiltonians and the relevant equations of motion and boundary conditions are derived.
description: 30 pages, Latex. Discussion on the continuum limit, and the boundary symmetries added