cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Radiative muon capture of oxygen, aluminum, silicon, titanium, zirconium, and silver
Creators: name: Bergbusch, Paul C.
Publisher: name: University of British Columbia
Year: 2009

description: The photon spectra from radiative muon capture (RMC) on oxygen, aluminum, silicon, titanium, zirconium, and silver have been measured for photon energies greater than 57 MeV using a cylindrical pair spectrometer at TRIUMF. Ratios of RMC to ordinary muon capture (OMC) and values of the weak induced pseudoscalar coupling constant (specifically, gp/gA) have been calculated using the observed photon spectra in conjunction with theoretical nuclear RMC models. Present discrepancies between different theoretical calculations mean that experimental values of gp cannot yet be used to make meaningful tests of the partially conserved axial current hypothesis (PCAC). However, trends in RMC/OMC and gp/gA with atomic number indicate an extreme sensitivity of RMC, and nuclear weak virtual pion currents in particular, to Pauli blocking. A future RMC experiment at TRIUMF with the nickel isotopes ⁵⁸Ni, ⁶⁰Ni, and ⁶²Ni will help to clarify the present theoretical situation. Results from RMC on H and ³He are forthcoming shortly from TRIUMF, and will provide direct tests of PCAC.
Shrinking of Cluster Ellipticals: a Tidal Stripping explanation and Implications for the Intra-Cluster Light
Creators: name: Cypriano, Eduardo S.
name: Sodré, Laerte
name: Campusano, Luis E.
name: Dale, Daniel A.
name: Hardy, Eduardo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We look for evidence of tidal stripping in elliptical galaxies through the analysis of homogeneous CCD data corresponding to a sample of 228 elliptical galaxies belonging to 24 clusters of galaxies at $0.015
description: AJ Accepted, 15 pages, 9 figures
The neutron matter equation of state from low-momentum interactions
Creators: name: Tolos, L.
name: Friman, B.
name: Schwenk, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We calculate the neutron matter equation of state at finite temperature based on low-momentum nucleon-nucleon and three-nucleon interactions. Our results are compared to the model-independent virial equation of state and to variational calculations. We provide a simple estimate for the theoretical error, important for extrapolations to astrophysical conditions.
description: 3 pages, 2 figures, to appear in the proceedings of Quark Confinement and Hadron Spectrum VII (QCHS7), Ponta Delgada (Acores), Portugal, 2-7 September 2006
นโยบายการพัฒนาศูนย์ข้อมูลการบริหารงานภาครัฐ เพื่อแก้ไขปัญหาความยากจน
Creators: name: นิวัตน์ สวัสดิ์แก้ว
name: สมบูรณ์ สุขสำราญ
name: ไพบูลย์ ช่างเรียน
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2549
Subjects: ความยากจน,คุณภาพชีวิต,นโยบายการบริหารงานภาครัฐ

description: 2, 2, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Shaping Quantum Photonic States Using Free Electrons
Creators: name: Hayun, Adi Ben
name: Reinhardt, Ori
name: Nemirovsky, Jonathan
name: Karnieli, Aviv
name: Rivera, Nicholas
name: Kaminer, Ido
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is a long-standing goal to generate robust deterministic states of light with unique quantum properties, such as squeezing, sub-Poissonian statistics and entanglement. It is of interest to consider whether such quantum states of light could be generated by exploiting interactions with free electrons, going beyond their already ubiquitous use in generating classical light. This question is motivated by developments in electron microscopy, which present a new platform for manipulating photons through their interaction with quantum free electrons. Here, we explore the shaping of photon statistics using the quantum interactions of free electrons with photons in optical cavities. We find a variety of quantum states of light that can be generated by a judicious choice of the input light and electron states. For example, we show how shaping an electron into an energy comb can provide an implementation of a photon displacement operation, allowing, for instance, the generation of displaced Fock and displaced squeezed states. We also show how one can generate a desired Fock state by repeated interactions of electrons with a cavity, followed by measurements. We develop the underlying theory of the interaction of both a single and many consecutive electrons with a common cavity mode. Looking forward, by exploiting the degrees of freedom of arbitrary electron-photon quantum states, we may achieve complete control over the statistics and correlations of output photonic states, leading to the generation of novel quantum states of light.
การสื่อสารเชิงกิจกรรมในแผนรณรงค์การสื่อสารทางการตลาดเพื่อการรณรงค์ ทางสังคมระดับชาติ กรณีรณรงค์ลดการบริโภคเครื่องดื่มแอลกอฮอล์ และรณรงค์ป้องกันอุบัติภัยจราจร
Creators: name: ขนิษฐา ปาลโมกข์
name: เสรี วงษ์มณฑา
name: เกรียงไกร กาญจนะโภคิน
name: วรวรรณ เปรมสุข
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2549
Subjects: การจราจร,เครื่องดื่มแอลกอฮอล์,แผนรณรงค์การสื่อสารทางการตลาด,อุบัติเหตุ

description: 2, 2, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
All Epitaxial Fabrication of a Nanowire Plasmon Laser Structure
Creators: name: Mastro, Michael A.
name: Freitas, Jaime A.
name: Hite, Jennifer K.
name: Eddy, Charles R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: An all-epitaxial approach was demonstrated to create coaxial plasmon laser structures composed of an alumi-num plasmonic metal / SiNx dielectric / InGaN quantum well shell surrounding a p-GaN nanowire core. Strong UV lumi-nescence was observed from as-grown vertically-aligned arrays as well as horizontally-aligned nanowires transferred to a transparent carrier wafer.
Molecular electronics in junctions with energy disorder
Creators: name: Kaiser, Franz J.
name: Hänggi, Peter
name: Kohler, Sigmund
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate transport through molecular wires whose energy levels are affected by environmental fluctuations. We assume that the relevant fluctuations are so slow that they, within a tight-binding description, can be described by disordered, Gaussian distributed onsite energies. For long wires, we find that the corresponding current distribution can be rather broad even for a small energy variance. Moreover, we analyse with a Floquet master equation the interplay of laser excitations and static disorder. Then the disorder leads to spatial asymmetries such that the laser diving can induce a ratchet current.
description: 11 pages, 3 figures
ยุทธวิธีใหม่ในการนำเสนอเพลงไทยประยุกต์สู่กลุ่มวัยรุ่น
Creators: name: ฐานะวัฒนา สุขวงศ์
name: เสรี วงษ์มณฑา
name: ณรงค์ชัย ปิฎกรัชต์
name: อนันต์ สบฤกษ์
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2549
Subjects: เพลงไทยประยุกต์,วัยรุ่น,อนุรักษ์,กิจกรรมยามว่าง

description: 2, 2, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Γυναικείες Μορφές στην Οδύσσεια
Creators: name: Νούλης, Ειρηναίος Αποστόλη
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Οδύσσεια
έπος
γυναίκα
Odyssey
epos
woman

description: Αντικείμενο της παρούσας εργασίας είναι η πραγμάτευση κάποιων από τις γυναικείες μορφές της Οδύσσειας. Η περιορισμένη έκταση της μεταπτυχιακής εργασίας δεν επιτρέπει την ενασχόληση με όλες τις θηλυκές υπάρξεις που εμφανίζονται στο ομηρικό έπος. Έπειτα από τη μελέτη όλων των χωρίων που σχετίζονται με τη δράση των γυναικών, θνητών και αθάνατων, κρίθηκε σκόπιμο να παρουσιαστεί η δράση της Καλυψούς, της Κίρκης και της Ναυσικάς. Ο λόγος είναι ότι οι τρεις αυτές μορφές, δύο θεές και μία θνητή, εξυπηρέτησαν, εκούσια ή ακούσια, την επιθυμία του Οδυσσέα για επιστροφή στην Ιθάκη. Στο πρώτο κεφάλαιο γίνεται αναφορά στο ρόλο που γενικά παίζουν οι γυναίκες στο έπος. Στα επόμενα τρία κεφάλαια παρουσιάζονται οι συναντήσεις του Οδυσσέα με την Καλυψώ, την Κίρκη και τη Ναυσικά αντίστοιχα, οι αντιδράσεις και των δυο πλευρών, οι σκέψεις, οι κρυφές και φανερές επιθυμίες, καθώς και η βοήθεια που αυτές παρέχουν προκειμένου να συντελέσουν στην πραγμάτωση της επιθυμίας του Οδυσσέα. Τέλος, στον επίλογο γίνεται μια περιληπτική αναφορά της συμπεριφοράς των τριών γυναικών καθώς και μια προσπάθεια χαρακτηρισμού τους.
description: The aim of the present MA thesis is to discuss some of the female characters in the Odyssey. However, the limited length of the thesis does not allow for the analysis of all of the female characters in the Homeric poems. After studying all the relevant passages concerning women's actions, both mortal and immortal, it was decided to focus and present the role of Calypso, Circe and Nausica. The reason for this was that these three women, two goddesses and a mortal, served intentionally or unintentionally Odysseus’ desire to return to Ithaca. In the first chapter the female involvement in the epos, in general, is being examined. The next three chapters present Odysseus’ encounters with Calypso, Circe and Nausica respectively, exploring the reactions of both sides, the thoughts, the secret and obvious intentions of both parts and the role of these in the shaping of Odysseus’ determination to return home. Finally, in the epilogue of the thesis a summaryzing review of the three women's actions is being presented, along with an attempt to characterize them.
Swift X-ray Follow-Up Observations of Gravitational Wave and High-Energy Neutrino Coincident Signals
Creators: name: Keivani, Azadeh
name: Kennea, Jamie A.
name: Evans, Phil A.
name: Tohuvavohu, Aaron
name: Rapisura, Riki
name: Countryman, Stefan
name: Bartos, Imre
name: Marka, Zsuzsa
name: Veske, Doga
name: Marka, Szabolcs
name: Fox, Derek B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Electromagnetic observations of gravitational wave and high-energy neutrino events are crucial in understanding the physics of their astrophysical sources. X-ray counterparts are especially useful in studying the physics of the jet, the energy of the outflow, and the particle acceleration mechanisms in the system. We present the Neil Gehrels Swift Observatory prompt searches for X-ray counterparts to the joint gravitational wave and high-energy neutrino coincident events that happened during the third observing run of LIGO/Virgo. Swift observed the overlap between gravitational wave and neutrino error regions for three of the considerable (p-value < 1%) joint gravitational wave and high-energy neutrino coincident alerts, which were generated by the IceCube Neutrino Observatory in realtime after triggering by the LIGO/Virgo gravitational wave public alerts. The searches did not associate any X-ray counterparts to any of the joint gravitational wave and high-energy neutrino coincident events, however, the follow-up of these alerts significantly improved the tiling techniques covering regions between the gravitational wave sky maps and neutrino's error regions, making the realtime system ready for the future potential discoveries. We will discuss the details of each follow-up procedure, the results of each search, and the plans for future searches.
description: 10 pages, 3 figures, 4 tables, Submitted to ApJ
Control of the exciton valley dynamics in van der Waals heterostructures
Creators: name: Prazdnichnykh, A. I.
name: Glazov, M. M.
name: Ren, L.
name: Robert, C.
name: Urbaszek, B.
name: Marie, X.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The exciton valley dynamics in van der Waals heterostructures with transition metal dichalcogenides monolayers is driven by the long-range exchange interaction between the electron and the hole in the exciton. It couples the states active in the opposite circular polarizations resulting in the longitudinal-transverse splitting of excitons propagating in the monolayer plane. Here we study theoretically the effect of the dielectric environment on the long-range exchange interaction and demonstrate how the encapsulation in the hexagonal boron nitride modifies the exciton longitudinal-transverse splitting. We calculate the exciton spin/valley polarization relaxation due to the long-range exchange interaction and demonstrate that the variation of the monolayer environment results in significant, up to five-fold, enhancement of the exciton valley polarization lifetime.
description: 12 pages, 6 figures
การพัฒนากลยุทธ์การสื่อสารทางการตลาดแบบครบวงจรเพื่อสร้างความเข้าใจในการใช้จ่ายผ่านบัตรเครดิตในประเทศไทยเพื่อธำรงความมั่นคงทางเศรษฐกิจภาคประชาชน
Creators: name: วุธพงศ์ ลาภเจริญ
name: เสรี วงษ์มณฑา
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2549
Subjects: การสื่อสารทางการตลาด,บัตรเครดิต,เศรษฐกิจภาคประชาชน,หนี้

description: 2, 2, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Bio-Based Polyether from Limonene Oxide Catalytic ROP as Green Polymeric Plasticizer for PLA
Creators: name: Sessini, Valentina
name: Palenzuela, Miguel
name: Damian, Jesus
name: Mosquera, Marta E. G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work, the polymerization of Limonene Oxide (LO) has been achieved using an Earth abundant metal-based catalyst developed in our group, that is very active in ring opening polymerization (ROP) processes. The bio-based polylimonene ether (PLO) obtained had low molecular weight and good thermal properties, thus being a potential green polymeric additive for other bio-based polymers such as PLA. Hence, we have explored its ability to influence PLA properties. The addition of only 10 wt %, led to the modification and improvement of PLA properties in terms of flexibility, thermal stability, and hydrophobicity. The results obtained are promising and open up the potential industrial application of polylimonene oxide (PLO) for the melt-processing of blends based on PLA/PLO. These new materials are totally based on renewable sources and may be interesting for many applications where biodegradability and reduced water adsorption is required, such as food packaging or agricultural mulch films.
การพัฒนาประสิทธิผลการให้พระราชบัญญัติข้อมูลข่าวสารของราชการ พ.ศ. 2540 ของนักหนังสือพิมพ์
Creators: name: สุรศักดิ์ จิราวัสตร์มงคล
name: เสรี วงษ์มณฑา
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2549
Subjects: พระราชบัญญัติข้อมูลข่าวสารของราชการ พ.ศ. 2540,นักหนังสือพิมพ์,สื่อ

description: 2, 2, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Parametric Representation of Noncommutative Field Theory
Creators: name: Gurau, Razvan
name: Rivasseau, Vincent
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we investigate the Schwinger parametric representation for the Feynman amplitudes of the recently discovered renormalizable $ϕ^4_4$ quantum field theory on the Moyal non commutative ${\mathbb R^4}$ space. This representation involves new {\it hyperbolic} polynomials which are the non-commutative analogs of the usual "Kirchoff" or "Symanzik" polynomials of commutative field theory, but contain richer topological information.
description: 31 pages,10 figures
Duality in 2-dimensional dilaton gravity
Creators: name: Grumiller, D.
name: Jackiw, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We descry and discuss a duality in 2-dimensional dilaton gravity.
description: 13 pages, 2 eps-figures, v2: added 2 references and a particular example (CGHS as dual of Liouville)
Localization of coherent exciton transport in phase space
Creators: name: Muelken, Oliver
name: Bierbaum, Veronika
name: Blumen, Alexander
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study numerically the dynamics of excitons on discrete rings in the presence of static disorder. Based on continuous-time quantum walks we compute the time evolution of the Wigner function (WF) both for pure diagonal (site) disorder, as well as for diagonal and off-diagonal (site and transfer) disorder. In both cases, large disorder leads to localization and destroys the characteristic phase space patterns of the WF found in the absence of disorder.
description: 8 pages, 9 figures. slight revision of the text and addition of a new figure. to be published in Phys. Rev. E
กระบวนทัศน์การเสริมสร้างวัฒนธรรมการสื่อสารการตลาดแบบบูรณาการ ในการสร้างตราสินค้า
Creators: name: ชุษณะ เดชคณา
name: เสรี วงษ์มณฑา
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2549
Subjects: ตราสินค้า,วัฒนธรรมการสื่อสาร,การตลาดแบบบูรณาการ,เทคโนโลยี

description: 1, 2, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Η έννοια του κράτους σύμφωνα με τον Καντ
Creators: name: Τσιόκας, Δημήτριος Θεοχάρη
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Καντ
Κράτος
Ηθική
Kant
State
Morals

description: Στην παρούσα μεταπτυχιακή εργασία επιχειρείται μία όσο το δυνατόν πληρέστερη προσέγγιση και ανάλυση της φιλοσοφίας του Ιμμάνουελ Καντ, σχετικά με τους όρους του κράτους, της εξουσίας, της ελευθερίας, της βούλησης, του καθήκοντος και γενικότερα όλων εκείνων των θεωρητικών πλαισίων που αφορούν τη ζωή των ανθρώπων σε οργανωμένες κοινωνίες. Συγκεκριμένα, για την ικανοποίηση του βασικού σκοπού της εργασίας η μελέτη βασίστηκε στο δοκίμιο του Γερμανού φιλόσοφου με τίτλο Για την Αιώνια Ειρήνη, καθώς και σε άλλα κείμενα του ίδιου στα οποία γίνεται αναφορά στις υπό εξέταση έννοιες, με έμφαση σε αυτά που σχετίζονται με την ηθική φιλοσοφία του Καντ. Η εστίαση αυτή αποσκοπεί στην κατανόηση της διαφοράς μεταξύ ηθικής και πολιτικής, ένα ερώτημα που απασχόλησε σε σημαντικό βαθμό τη σκέψη του φιλοσόφου.
description: This master’s degree paper aims to achieve the closest possible approach and analysis of the philosophy of Immanuel Kant regarding the notions of state, power, freedom, will, duty and generally of all theoretical frameworks that affect human life in organized society. To be more precise, in order to achieve the main purpose of the paper, the research was based on Immanuel Kant's essay "Perpetual Peace: A Philosophical Sketch" alongside other texts, of the same writer, where these notions are mentioned. In their examination emphasis is placed on moral philosophy according to Kant. Such focus aims to highlight the difference between morals and politics giving rise to an issue that was also greatly questioned by the philosopher himself.
Striations, integrals, hourglasses and collapse -- thermal instability driven magnetic simulations of molecular clouds
Creators: name: Wareing, C. J.
name: Pittard, J. M.
name: Falle, S. A. E. G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The MHD version of the adaptive mesh refinement (AMR) code, MG, has been employed to study the interaction of thermal instability, magnetic fields and gravity through 3D simulations of the formation of collapsing cold clumps on the scale of a few parsecs, inside a larger molecular cloud. The diffuse atomic initial condition consists of a stationary, thermally unstable, spherical cloud in pressure equilibrium with lower density surroundings and threaded by a uniform magnetic field. This cloud was seeded with 10% density perturbations at the finest initial grid level around n=1.1 cm^{-3} and evolved with self-gravity included from the outset. Several cloud diameters were considered (100 pc, 200 pc and 400 pc) equating to several cloud masses (17,000 Msun, 136,000 Msun and 1.1x10^6 Msun). Low-density magnetic-field-aligned striations were observed as the clouds collapse along the field lines into disc-like structures. The induced flow along field lines leads to oscillations of the sheet about the gravitational minimum and an integral-shaped appearance. When magnetically supercritical, the clouds then collapse and generate hourglass magnetic field configurations with strongly intensified magnetic fields, reproducing observational behaviour. Resimulation of a region of the highest mass cloud at higher resolution forms gravitationally-bound collapsing clumps within the sheet that contain clump-frame supersonic (M~5) and super-Alfvenic (M_A~4) velocities. Observationally realistic density and velocity power spectra of the cloud and densest clump are obtained. Future work will use these realistic initial conditions to study individual star and cluster feedback.
description: Accepted for publication in MNRAS. 20 pages, 11 figures + appendix and figure. Raw data: doi.org/10.5518/897
Optimized production of large Bose Einstein Condensates
Creators: name: Comparat, D.
name: Fioretti, A.
name: Stern, G.
name: Dimova, E.
name: Tolra, B. Laburthe
name: Pillet, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We suggest different simple schemes to efficiently load and evaporate a ''dimple'' crossed dipolar trap. The collisional processes between atoms which are trapped in a reservoir load in a non adiabatic way the dimple. The reservoir trap can be provided either by a dark SPOT Magneto Optical Trap, the (aberrated) laser beam itself or by a quadrupolar or quadratic magnetic trap. Optimal parameters for the dimple are derived from thermodynamical equations and from loading time, including possible inelastic and Majorana losses. We suggest to load at relatively high temperature a tight optical trap. Simple evaporative cooling equations, taking into account gravity, the possible occurrence of hydrodynamical regime, Feshbach resonance processes and three body recombination events are given. To have an efficient evaporation the elastic collisional rate (in s$^{-1}$) is found to be on the order of the trapping frequency and lower than one hundred times the temperature in micro-Kelvin. Bose Einstein condensates with more than $10^7$ atoms should be obtained in much less than one second starting from an usual MOT setup.
description: 14 pages
มิติใหม่ของนโยบายรัฐในการเสริมสร้างความสามารถในการแข่งขัน ของอุตสาหกรรมเหล็กและเหล็กกล้าไทย
Creators: name: ทรงวุฒิ ไกลภัสสร์พงษ์
name: ไพบูลย์ ช่างเรียน
name: วิกรม วัชระคุปต์
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2549
Subjects: เหล็กและเหล็กกล้าไทย,อุตสาหกรรมเหล็กและเหล็กกล้าไทย,ประสิทธิภาพ,นโยบายรัฐ

description: 2, 2, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Actionet: An Interactive End-To-End Platform For Task-Based Data Collection And Augmentation In 3D Environment
Creators: name: Duan, Jiafei
name: Yu, Samson
name: Tan, Hui Li
name: Tan, Cheston
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The problem of task planning for artificial agents remains largely unsolved. While there has been increasing interest in data-driven approaches for the study of task planning for artificial agents, a significant remaining bottleneck is the dearth of large-scale comprehensive task-based datasets. In this paper, we present ActioNet, an interactive end-to-end platform for data collection and augmentation of task-based dataset in 3D environment. Using ActioNet, we collected a large-scale comprehensive task-based dataset, comprising over 3000 hierarchical task structures and videos. Using the hierarchical task structures, the videos are further augmented across 50 different scenes to give over 150,000 video. To our knowledge, ActioNet is the first interactive end-to-end platform for such task-based dataset generation and the accompanying dataset is the largest task-based dataset of such comprehensive nature. The ActioNet platform and dataset will be made available to facilitate research in hierarchical task planning.
description: https://github.com/SamsonYuBaiJian/actionet
Vortex density spectrum of quantum turbulence
Creators: name: Roche, Philippe-Emmanuel P. -E.
name: Diribarne, Pantxo
name: Didelot, Thomas
name: Français, Olivier
name: Rousseau, Lionel
name: Willaime, Hervé
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The fluctuations of the vortex density in a turbulent quantum fluid are deduced from local second-sound attenuation measurements. These measurements are performed with a micromachined open-cavity resonator inserted across a flow of turbulent He-II near 1.6 K. The power spectrum of the measured vortex line density is compatible with a (-5/3) power law. The physical interpretation, still open, is discussed.
description: Submitted to Europhys. Lett
Αστικό τοπίο και ανθρώπινη μορφή στη μεταπολεμική ελληνική ζωγραφική
Creators: name: Τσιαούσκογλου, Δήμητρα Στέφανου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Αστική
Τοπιογραφία
Ζωγραφική
Urban
Landscape
Painting

description: Αντικείμενο μελέτης της εργασίας είναι η απεικόνιση του αστικού χώρου και της ανθρώπινης μορφής στην ελληνική μεταπολεμική ζωγραφική. Ο τρόπος με τον οποίο οι παραστατικοί ζωγράφοι αντιλαμβάνονται και πραγματεύονται την επίδραση του αστικού περιβάλλοντος στον άνθρωπο και τις διαπροσωπικές του σχέσεις, η ίδια η πόλη ως βιωμένη εμπειρία, ατομική ή συλλογική, τα μικρά συμβάντα της καθημερινότητας στο δημόσιο χώρο, το πλήθος της πόλης και λιγότερο η τοπιογραφική της διάσταση βρίσκονται στο επίκεντρο του ενδιαφέροντος. Το χρονικό πλαίσιο τοποθετείται στην ευρύτερη μεταπολεμική περίοδο, οπότε μελετώνται όψεις της αστικής τοπιογραφίας από το 1950 μέχρι και τη σύγχρονη παραγωγή. Αρχικά παρουσιάζονται κάποιες θεωρητικές προσεγγίσεις για τον χώρο και τον άνθρωπο στην πόλη και εν συνεχεία οι σημαντικότερες τάσεις του είδους στην ευρωπαϊκή ζωγραφική. Το κύριο μέρος της εργασίας, μετά από μια εισαγωγή στη μεταπολεμική πολεοδομική πραγματικότητα των ελληνικών πόλεων και την προγενέστερη νεοελληνική αστική τοπιογραφία, δομείται σε δύο χρονολογικές περιόδους με περαιτέρω θεματική διάκριση η καθεμιά. Η πρώτη αναφέρεται στις δεκαετίες 1950-1980 και ερευνά τη διαφορετική πραγμάτευση του θέματος τόσο στην επικρατέστερη τάση της περιόδου, τη νοσταλγική αστική τοπιογραφία, όσο και στις όψεις του Κριτικού Ρεαλισμού. Στη δεύτερη περίοδο, που αναφέρεται στη δεκαετία του 1990 μέχρι σήμερα, μελετάται το ανανεωμένο ενδιαφέρον των καλλιτεχνών και η ουσιαστική στροφή τους προς την ανθρώπινη μορφή και την αστική εμπειρία όπως βιώνεται μέσα στο περιβάλλον της σύγχρονης μεγαλούπολης.
description: The present thesis studies the depiction of the urban landscape and the human figure in post-war Greek painting. The main interest revolves around the perception of the urban experience, the city’s effect on people and interpersonal relationships, the daily incidents within the public space, the city’s crowd, and to a lesser extent the cityscape itself. The study covers the Greek post-war artistic production, from the 1950’s until today. As an introduction, certain urban theories are explored, along with the main movements of the urban landscape in the Western painting. Then, after a short study of the urban and architectural planning conditions of the Greek cities in the post-war era, the history of the urban landscape in Greek painting is briefly studied. The main body of the thesis consists of two large chronological parts. In the first period, ranging from the 1950’s to the 1980’s, the different approach of the human figure within the urban landscape is investigated within the main artistic tendencies; the first one is characterized by a nostalgic and romantic approach, whereas the second one refers to the Critical Realism movement. In the second period, from the 1990’s to today’s production, the renewed interest in the depiction of the urban experience is widely explored within the context of contemporary metropolis.
Magnetizations and de Haas-van Alphen oscillations in massive Dirac fermions
Creators: name: Pratama, F. R.
name: Ukhtary, M. Shoufie
name: Saito, Riichiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically study magnetic field, temperature, and energy band-gap dependences of magnetizations in the Dirac fermions. We use the zeta function regularization to obtain analytical expressions of thermodynamic potential, from which the magnetization of graphene for strong field/low temperature and weak field/high temperature limits are calculated. Further, we generalize the result by considering the effects of impurity on orbital susceptibility of graphene. In particular, we show that in the presence of impurity, the susceptibility follows a scaling law which can be approximated by the Faddeeva function. In the case of the massive Dirac fermions, we show that a large band-gap gives a robust magnetization with respect to temperature and impurity. In the doped Dirac fermion, we discuss the dependence of the band-gap on the period and amplitude of the de Haas-van Alphen effect.
description: 13 pages, 11 figures
Sub-milliarcsecond imaging of a bright flare and ejection event in the extragalactic jet 3C 111
Creators: name: Schulz, R.
name: Kadler, M.
name: Ros, E.
name: Perucho, M.
name: Krichbaum, T. P.
name: Agudo, I.
name: Beuchert, T.
name: Lindqvist, M.
name: Mannheim, K.
name: Wilms, J.
name: Zensus, J. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Flares in radio-loud AGN are thought to be associated with the injection of fresh plasma into the compact jet base. Such flares are usually strongest and appear earlier at shorter radio wavelengths. Hence, VLBI at mm-wavelengths is best suited to study the earliest structural changes of compact jets associated with emission flares. We study the morphological changes of the parsec-scale jet in the nearby (z=0.049) gamma-ray bright radio galaxy 3C111 following a flare that developed into a major radio outburst in 2007. We analyse three successive observations of 3C111 at 86 GHz with the Global mm-VLBI Array (GMVA) between 2007 and 2008 which yield a very high angular resolution of ~45muas. In addition, we make use of single-dish radio flux density measurements from the F-GAMMA and POLAMI programmes, archival single-dish and VLBI data. We resolve the flare into multiple plasma components with a distinct morphology resembling a bend in an otherwise remarkably straight jet. The flare-associated features move with apparent velocities of ~4.0c to ~4.5c and can be traced also at lower frequencies in later epochs. Near the base of the jet, we find two bright features with high brightness temperatures up to ~10^11K, which we associate with the core and a stationary feature in the jet. The flare led to multiple new jet components indicative of a dynamic modulation during the ejection. We interpret the bend-like feature as a direct result of the outburst which makes it possible to trace the transverse structure of the jet. In this scenario, the components follow different paths in the jet stream consistent with expectations for a spine-sheath structure, which is not seen during intermediate levels of activity. The possibility of coordinated multiwavelength observations during a future bright radio flare in 3C111 makes this source an excellent target for probing the radio-gamma-ray connection.
description: 11 pages, 7 figures, accepted for publication by Astronomy & Astrophysics
Casimir interaction between gas media of excited atoms
Creators: name: Sherkunov, Yury
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The retarded dispersion interaction (Casimir interaction) between two dilute dielectric media at high temperatures is considered. The excited atoms are taken into account. It is shown that the perturbation technique can not be applied to this problem due to the divergence of integrals. A non-perturbative approach based on kinetic Green functions is implemented. We consider interaction between two atoms (one of them is excited0 embedded in an absorbing dielectric medium. We take into account possible absorption of photons in the medium, which solves the problem of divergence. The force between two plane dilute dielectric media is calculated at pair interaction approximation. We show that the result of quantum electrodynamics differs from the Lifshitz formula for dilute gas media at high temperatures (if the number of excited atoms is significant). According to quantum electrodynamics, the interaction may be either attractive or repulsive depending on the temperature and the density numbers of the media.
description: Bio-dielectrics: Theories, Mechanisms, and Applications. 10-12 April 2006, University of Leicester, UK To be published in Journal of Physics D: Applied Physics
Complete and incomplete fusion of $^{7}$Li projectiles on heavy targets
Creators: name: Cortes, M. R.
name: Rangel, J.
name: Ferreira, J. L.
name: Lubian, J.
name: Canto, L. F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a detailed discussion of a recently proposed method to evaluate complete and incomplete fusion cross sections for weakly bound systems. The method is applied to collisions of $^{7}$Li projectiles on different heavy targets, and the results are compared with the available data. The overall agreement between experiment and theory is fairly good.
description: 18 pages, 18 figures
Population analysis of open clusters: radii and mass segregation
Creators: name: Schilbach, E.
name: Kharchenko, N. V.
name: Piskunov, A. E.
name: Röser, S.
name: Scholz, R. -D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Aims: Based on our well-determined sample of open clusters in the all-sky catalogue ASCC-2.5 we derive new linear sizes of some 600 clusters, and investigate the effect of mass segregation of stars in open clusters. Methods: Using statistical methods, we study the distribution of linear sizes as a function of spatial position and cluster age. We also examine statistically the distribution of stars of different masses within clusters as a function of the cluster age. Results: No significant dependence of the cluster size on location in the Galaxy is detected for younger clusters (< 200 Myr), whereas older clusters inside the solar orbit turned out to be, on average, smaller than outside. Also, small old clusters are preferentially found close to the Galactic plane, whereas larger ones more frequently live farther away from the plane and at larger Galactocentric distances. For clusters with (V - M_V) < 10.5, a clear dependence of the apparent radius on age has been detected: the cluster radii decrease by a factor of about 2 from an age of 10 Myr to an age of 1 Gyr. A detailed analysis shows that this observed effect can be explained by mass segregation and does not necessarily reflect a real decrease of cluster radii. We found evidence for the latter for the majority of clusters older than 30 Myr. Among the youngest clusters (between 5 and 30 Myr), there are some clusters with a significant grade of mass segregation, whereas some others show no segregation at all. At a cluster age between 50 and 100 Myrs, the distribution of stars of different masses becomes more regular over cluster area. In older clusters the evolution of the massive stars is the most prominent effect we observe.
description: 14 pages, 12 figures, accepted for publication in Astronomy & Astrophysics
Practical Precoding via Asynchronous Stochastic Successive Convex Approximation
Creators: name: Idrees, Basil M.
name: Akhtar, Javed
name: Rajawat, Ketan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We consider stochastic optimization of a smooth non-convex loss function with a convex non-smooth regularizer. In the online setting, where a single sample of the stochastic gradient of the loss is available at every iteration, the problem can be solved using the proximal stochastic gradient descent (SGD) algorithm and its variants. However in many problems, especially those arising in communications and signal processing, information beyond the stochastic gradient may be available thanks to the structure of the loss function. Such extra-gradient information is not used by SGD, but has been shown to be useful, for instance in the context of stochastic expectation-maximization, stochastic majorization-minimization, and stochastic successive convex approximation (SCA) approaches. By constructing a stochastic strongly convex surrogates of the loss function at every iteration, the stochastic SCA algorithms can exploit the structural properties of the loss function and achieve superior empirical performance as compared to the SGD. In this work, we take a closer look at the stochastic SCA algorithm and develop its asynchronous variant which can be used for resource allocation in wireless networks. While the stochastic SCA algorithm is known to converge asymptotically, its iteration complexity has not been well-studied, and is the focus of the current work. The insights obtained from the non-asymptotic analysis allow us to develop a more practical asynchronous variant of the stochastic SCA algorithm which allows the use of surrogates calculated in earlier iterations. We characterize precise bound on the maximum delay the algorithm can tolerate, while still achieving the same convergence rate. We apply the algorithm to the problem of linear precoding in wireless sensor networks, where it can be implemented at low complexity but is shown to perform well in practice.
On the constructions of the skew Brownian motion
Creators: name: Lejay, Antoine
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J60 (Primary) 60H10, 60J55 (Secondary)

description: This article summarizes the various ways one may use to construct the Skew Brownian motion, and shows their connections. Recent applications of this process in modelling and numerical simulation motivates this survey. This article ends with a brief account of related results, extensions and applications of the Skew Brownian motion.
description: Published at http://dx.doi.org/10.1214/154957807000000013 in the Probability Surveys (http://www.i-journals.org/ps/) by the Institute of Mathematical Statistics (http://www.imstat.org)
SDSS J143030.22-001115.1: A misclassified narrow-line Seyfert 1 galaxy with flat X-ray spectrum
Creators: name: Bian, Weihao
name: Cui, Quanling
name: Chao, Lihua
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We used multi-component profiles to model H$β$ and [O III]$λλ$4959,5007 lines for SDSS J143030.22-001115.1, a narrow-line Seyfert 1 galaxy (NLS1) in a sample of 150 NLS1s candidates selected from the Sloan Digital Sky Survey (SDSS) Early Data Release (EDR). After subtracting the H$β$ contribution from narrow line regions (NLRs), we found that its full width half maximum (FWHM) of broad H$β$ line is nearly 2900 \kms, significantly larger than the customarily adopted criterion of 2000 \kms. With its weak Fe II multiples, we think that SDSS J143030.22-001115.1 can't be classified as a genuine NLS1. When we calculate the virial black hole masses of NLS1s, we should use the H$β$ linewidth after subtracting the H$β$ contribution from NLRs.
description: 7 pages, 1 table, accepted by ChJAA
Το Ελληνικό Έθνος σε Κρίση. Πολιτική και Πολίτες σε Περιόδους Κρίσεων. (1843, 1893, 1932).
Creators: name: Νασιάρας, Θανάσης Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Κρίση
Χρεοκοπία
Crisis
Default

description: Η παρούσα εργασία επιχειρεί να προσφέρει μια συνολική ιστορική ανάλυση των τριών επίσημων χρεοκοπιών της Ελλάδας τα έτη 1843,1893 και 1932, ως οικονομικές, πολιτικές και κοινωνικές κρίσεις. Το πεδίο της έρευνάς μας περιλαμβάνει μια ευρεία περίοδο από το 1821 ως το 1932. Η εργασία αποτελείται από τρία μέρη, το καθένα εκ των οποίων αποτελείται από τρία κεφάλαια. Αρχικά, λαμβάνοντας υπόψη την ιστορική βιβλιογραφία, προσπαθούμε να δημιουργήσουμε το ιστορικό πλαίσιο των τριών χρεοκοπιών εστιάζοντας στις οικονομικές, πολιτικές και κοινωνικές προεκτάσεις. Σε δεύτερο επίπεδο, επιχειρούμε με βάση τις κοινοβουλευτικές συζητήσεις της εκάστοτε εποχής, να αναδείξουμε τις απόψεις των ελλήνων πολιτικών αναφορικά με τα βασικά αίτια των χρεοκοπιών καθώς και να υπογραμμίσουμε τις βασικές προτάσεις αντιμετώπισης των κρίσεων. Σε τρίτο επίπεδο, έχοντας ερευνήσει ένα σύνολο εφημερίδων επιχειρούμε να υπογραμμίσουμε, όπως πριν, τα βασικά αίτια των χρεοκοπιών και τις βασικές προτάσεις ανάκαμψης. Κλείνοντας, η εργασία έχει κυρίως δύο βασικούς στόχους. Από τη μία πλευρά, να τονίσουμε τις ομοιότητες και τις διαφορές ανάμεσα στις τρεις χρεοκοπίες και από την άλλη πλευρά να αναδείξουμε τα βασικά μοτίβα, τα στερεότυπα, όπως αυτά παράχθηκαν μέσα από το θεσμό του κοινοβουλίου και του Τύπου. Τα μοτίβα και τα στερεότυπα συνδέονται με τα βασικά αίτια των χρεοκοπιών και τις σημαντικότερες προτάσεις αντιμετώπισης των κρίσεων.
description: This thesis attempts to offer a panoramic historical analysis of the three official default episodes of Greece in 1843, 1893 and 1932, as economic, political and social crises. Our field of study encompassing a long period dating from 1821 to 1932. The thesis consist of three main parts, each of them containing three subdivisions. At first, taking under consideration the historical literature, we try to create the historical context of each default episode focusing on economic, political and social perspectives. On the second level we attempt, taking into account the parliament discussions of each period, to put forward the opinions of the Greek politicians about the main reasons of the defaults and also to illustrate the most important proposals to overtaking them. On a third level, after thural examination of a sum of newspapers we attempt to highlight, as before, the main causes of the defaults and the basic remedies. In conclusion, the thesis has mainly two tasks. On one hand, to highlight the similarities and differences between the three default episodes and on the other hand to point up the motives, the stereotypes, as these derived from the institutions of the parliament and the press. These motives and stereotypes are interconnected with the basic causes of the defaults and solutions proposed in order to confront the aforementioned crises.
Classification of firing pin impressions using HOG‐SVM.pdf
Creators: name: wen, zhijian
name: Curran, James M.
name: Harbison, SallyAnn
name: Wevers, Gerhard E.
Publisher: name: Institute of Environmental Science and Research
Year: 2024
Subjects: classificationCode: 350305
subject: Forensic intelligence

description: Crimes, such as robbery and murder, often involve firearms. In order to assist with the investigation into the crime, firearm examiners are asked to determine whether cartridge cases found at a crime scene had been fired from a suspect's firearm. This examination is based on a comparison of the marks left on the surfaces of cartridge cases. Firing pin impressions can be one of the most commonly used of these marks. In this study, a total of nine Ruger model 10/22 semiautomatic rifles were used. Fifty cartridges were fired from each rifle. The cartridge cases were collected, and each firing pin impression was then cast and photographed using a comparison microscope. In this paper, we will describe how one may use a computer vision algorithm, the Histogram of Orientated Gradient (HOG), and a machine learning method, Support Vector Machines (SVMs), to classify images of firing pin impressions. Our method achieved a reasonably high accuracy at 93%. This can be used to associate a firearm with a cartridge case recovered from a scene. We also compared our method with other feature extraction algorithms. The comparison results showed that the HOGSVM method had the highest performance in this classification task.
Sur un théorème de Castelnuovo
Creators: name: Blanc, Jéremy
name: Pan, Ivan
name: Vust, Thierry
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14E07, 14J26, 14H50

description: English: We continue the study of G. Castelnuovo on the group of birational transformation of the complex plane that fix each point of a curve of genus >1; we use adjoint linear system of the curve as Castelnuovo does. We prove that these groups are abelian, and that these are either finite, of order 2 or 3, or conjuguate to a subgroup of the de Jonquières group. We show also that these results do not generalise to curves of genus <=1. ----- French: Nous poursuivons l'étude faite par G. Castelnuovo en 1892 au sujet du groupe des transformations birationnelles du plan complexe qui fixent points par points une courbe de genre >1; nous nous servons comme lui des systèmes linéaires adjoints de la courbe fixe. Nous démontrons que ces groupes sont abéliens, et qu'ils sont soit finis, d'ordre 2 ou 3, soit conjugués à un sous-groupe du groupe de de Jonquières. Nous montrons également que ces résultats ne se généralisent pas aux courbes de genre <=1.
description: 15 pages, no figure, in French
Frustrated bearings
Creators: name: Pires, R. S.
name: Moreira, A. A.
name: Herrmann, H. J.
name: Andrade, J. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: In a bearing state, touching spheres (disks in two dimensions) roll on each other without slip. Here we frustrate a system of touching spheres by imposing two different bearing states on opposite sides and search for the configurations of lowest energy dissipation. If the dissipation between contacts of spheres is viscous (with random damping constants), the angular momentum continuously changes from one bearing state to the other. For Coulomb friction (with random friction coefficients) in two dimensions, a sharp line separates the two bearing states and we show that this line corresponds to the minimum cut. Astonishingly however, in three dimensions, intermediate bearing domains, that are not synchronized with either side, are energetically more favorable than the minimum-cut surface. Instead of a sharp cut, the steady state displays a fragmented structure. This novel type of state of minimum dissipation is characterized by a spanning network of slipless contacts that reaches every sphere. Such a situation becomes possible because in three dimensions bearing states have four degrees of freedom.
description: 5 pages, 4 figures