cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Measurements of Hard-Scattering by PHENIX at RHIC
Creators: name: Tannenbaum, M. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Hard-scattering in p-p collisions was discovered in 1972 at the CERN-ISR, the first hadron collider. Techniques were developed and several hard-processes were discovered which form the basis for many of the measurements made in p-p and Au+Au collisions at RHIC. Recent measurements of hard-scattering and related reactions by the PHENIX experiment at RHIC are presented in this context.
description: 6 pages, 12 figures, Proceedings of Hadron Collider Physics Symposium 2007, La Biodola, Isola d'Elba (Italy), May 20-26, 2007
Local stability of cooperation in a continuous model of indirect reciprocity
Creators: name: Lee, Sanghun
name: Murase, Yohsuke
name: Baek, Seung Ki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Reputation is a powerful mechanism to enforce cooperation among unrelated individuals through indirect reciprocity, but it suffers from disagreement originating from private assessment, noise, and incomplete information. In this work, we investigate stability of cooperation in the donation game by regarding each player's reputation and behaviour as continuous variables. Through perturbative calculation, we derive a condition that a social norm should satisfy to give penalties to its close variants, provided that everyone initially cooperates with a good reputation, and this result is supported by numerical simulation. A crucial factor of the condition is whether a well-reputed player's donation to an ill-reputed co-player is appreciated by other members of the society, and the condition can be reduced to a threshold for the benefit-cost ratio of cooperation which depends on the reputational sensitivity to a donor's behaviour as well as on the behavioural sensitivity to a recipient's reputation. Our continuum formulation suggests how indirect reciprocity can work beyond the dichotomy between good and bad even in the presence of inhomogeneity, noise, and incomplete information.
description: 13 pages, 3 figures
Energy and Momentum Distributions of Kantowski and Sachs Space-time
Creators: name: Gad, Ragab M.
name: Fouad, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use the Einstein, Bergmann-Thomson, Landau-Lifshitz and Papapetrou energy-momentum complexes to calculate the energy and momentum distributions of Kantowski and Sachs space-time. We show that the Einstein and Bergmann-Thomson definitions furnish a consistent result for the energy distribution, but the definition of Landau-Lifshitz do not agree with them. We show that a signature switch should affect about everything including energy distribution in the case of Einstein and Papapetrou prescriptions but not in Bergmann-Thomson and Landau-Lifshitz prescriptions.
description: 12 pages
Additional file 2 of Prospective association of dietary soy and fibre intake with puberty timing: a cohort study among Chinese children
Creators: name: Xiong, Jingyuan
name: Xu, Yujie
name: Liu, Xueting
name: Wang, Xiaoyu
name: Shan, Shufang
name: Crabbe, M. James C.
name: Zhao, Li
name: Fang, He
name: Cheng, Guo
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Mental Health

description: Additional file 2: Table S1. Associations of total soy intakes in childhood with puberty timing using mixed model. Table S2. Associations of total soy intakes in childhood with puberty timing among participants with urinary equol data using mixed model. Table S3. Associations of total soy intakes in childhood with puberty timing among participants with urinary equol data. Table S4. Associations of total dietary fibre intakes in childhood with puberty timing using mixed model. Table S5. Associations of cereal fibre intakes in childhood with puberty timing. Table S6. Associations of vegetable and fruit fibre intakes in childhood with puberty timing.
Three Practical Problems in Healthcare Analytics
Creators: name: Babashov, Vusal
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2021
Subjects: Healthcare
Analytics
Dynamic programming
Inverse optimization
Multi-criteria decision analysis

description: This thesis investigates three critical problems faced by healthcare service providers and proposes analytical solutions. In the first manuscript, we aim to set wait time targets in a multi-priority patient setting using simulation, statistical regression and supervised machine learning. Using illustrative examples with two and three patient classes, and a clinical study with four patient priority classes, we demonstrate potential managerial and societal savings based on the proposed approach. Numerical analyses show that typically wait time targets are quite low, and thus the additional wait imposed by long wait time targets cannot be justified. In the second manuscript, we investigate scheduling policies to book patients for follow-up appointments with their service providers dynamically. We develop a Markov decision process model to efficiently allocate available capacity to consults and follow-up visits in a dynamic fashion. We solve this model using the linear programming approach to Approximate Dynamic Programming (ADP) and discuss the characteristics of the approximate optimal booking (AOP) policy for multi-class patients with repeat visits. Finally, we compare the AOP policy's performance to that of existing policies through simulation and show the superior performance of the AOP policy over a First Available Slot Policy with booking limits (i.e., a Myopic policy). In the third manuscript, we propose a framework for the drug formulary decision with the help of Multi-Criteria Decision Analysis. We use a recent extension of the UTilities Additives DIScriminantes approach, UTADISᴳᴹˢ and demonstrate the method using the oncology drugs reviewed through pan-Canadian Oncology Drug Review (pCODR) in Canada between 2011 and 2017. Finally, we show the method's prescriptive and predictive ability using an open-source decision support tool. Each paper makes a worthwhile contribution to the healthcare operations literature through the modelling and case studies using real-life data. Also, each essay conclusion has the potential to inform healthcare policy decision making. Approaches presented in the thesis can help managers allocate resources efficiently with proven, analytics-based methods.
Supplemental Tables S1-S4.docx
Creators: name: McGraw, Matthew
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 310204
subject: Genomics and transcriptomics

description: Supplemental Tables S1-S4 for manuscript titled: 'Single-cell resolution of human airway epithelial cells exposed to bronchiolitis obliterans-associated chemicals'
Durable Queues: The Second Amendment
Creators: name: Sela, Gal
name: Petrank, Erez
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Data Structures and Algorithms (cs.DS)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: We consider durable data structures for non-volatile main memory, such as the new Intel Optane memory architecture. Substantial recent work has concentrated on making concurrent data structures durable with low overhead, by adding a minimal number of blocking persist operations (i.e., flushes and fences). In this work we show that focusing on minimizing the number of persist instructions is important, but not enough. We show that access to flushed content is of high cost due to cache invalidation in current architectures. Given this finding, we present a design of the queue data structure that properly takes care of minimizing blocking persist operations as well as minimizing access to flushed content. The proposed design outperforms state-of-the-art durable queues. We start by providing a durable version of the Michael Scott queue (MSQ). We amend MSQ by adding a minimal number of persist instructions, fewer than in available durable queues, and meeting the theoretical lower bound on the number of blocking persist operations. We then proceed with a second amendment to this design, that eliminates accesses to flushed data. Evaluation shows that the second amendment yields substantial performance improvement, outperforming the state of the art and demonstrating the importance of reduced accesses to flushed content. The presented queues are durably linearizable and lock-free. Finally, we discuss the theoretical optimal number of accesses to flushed content.
description: Code: https://github.com/galysela/DurableQueues
Spatial imaging of modifications to fluorescence lifetime and intensity by individual Ag nanoparticles
Creators: name: Ritman-Meer, T.
name: Cade, N. I.
name: Richards, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Highly ordered periodic arrays of silver nanoparticles have been fabricated which exhibit surface plasmon resonances in the visible spectrum. We demonstrate the ability of these structures to alter the fluorescence properties of vicinal dye molecules by providing an additional radiative decay channel. Using fluorescence lifetime imaging microscopy (FLIM), we have created high resolution spatial maps of the molecular lifetime components; these show an order of magnitude increase in decay rate from a localized volume around the nanoparticles, resulting in a commensurate enhancement in the fluorescence emission intensity.
description: 3 pages, 2 figures, submitted Applied Physics Letters
Black Mirror : une autre manière de penser le rapport homme-technologie à travers la théorie de l’acteur-réseau
Creators: name: Blondiau, Thomas
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2021
Subjects: Technologie
Série
Théorie de l'acteur-réseau
Criminologie
Black Mirror

description: La technologie fait partie de notre quotidien pourtant nous prenons peu le temps de nous questionner sur notre rapport à cette dernière. Par le biais de la série Black Mirror, ce travail a pour vocation de raviver cette réflexion et d’engager le lecteur dans une conception différente de son rapport à la technologie. En outre, il invite aussi à se saisir des séries comme matériau d’étude notamment en criminologie. Pour y arriver, l’auteur fait le choix de la théorie de l’acteur-réseau qui propose un rapport novateur aux actants non-humains, en leur conférant une capacité d’action dans l’interaction qui sorte de la simple instrumentalisation. Ainsi équipé, l’auteur nous promène dans l’épisode spécial de Noël : White Christmas. Au gré des pérégrinations de nos protagonistes et de l’apport de nombreux auteurs, nous découvrons alors une vision différente de la technologie qui remet en question nos représentations. Ce travail est autant un mémoire qu’une invitation à un voyage vers une destination nouvelle.
Wiggling Instabilities of Temporal Localized States in Passively Mode-Locked Vertical External-Cavity Surface-Emitting Lasers
Creators: name: Hessel, Denis
name: Gurevich, Svetlana V.
name: Javaloyes, Julien
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We analyze the emergence of wiggling temporal localized states in a passively mode-locked Vertical External- Cavity Surface-Emitting Laser composed by a gain chip and a resonant saturable absorber mirror. We show that the wiggling instability stems from the interplay between the third-order dispersion induced by the micro-cavities and their frequency mismatch. The latter is identified as an experimentally crucial parameter defining the range of existence of stable emission. We reveal the homoclinic scenario underlying the wiggling phenomenon and we show how it allows to control the oscillation.
description: 4 pages 5 figures, submitted to Optics Letters
Large deflection elastic-plastic analysis of cylindrical shells using the finite strip method
Creators: name: Kumar, Pravin
Publisher: name: University of British Columbia
Year: 2010

description: A transversely-curved finite strip formulation for the static analysis of circular cylindrical shells is presented. The finite strip analysis is carried out by using one or two analytical modes in the longitudinal direction to determine the response of cylindrical shells subjected to uniform loads. Both linear and quadratic variation of membrane displacements in the curved direction are investigated and it is found that the quadratic variation is far superior. The effect of large deformations is incorporated in the present analysis by including the first order non-linearities in the strain-displacement relations. The material behavior is assumed to be isotropic elastic-plastic. The plasticity portion uses the von-Mises yield criteria, and the associated flow rule. For the examples considered, a bi-linear stress-strain relation is assumed. Numerical integration of the virtual work equations is carried out using Gaussian Quadrature. The number of integration points in a given direction is determined by observing the individual terms in the integration or by past experience. The resulting set of non-linear equations is solved iteratively by employing the Newton-Raphson scheme. Numerical investigations of the method are carried out by modelling cylindrical shells subjected to self-weight or pressure load. These investigations compare the results for laterally loaded cylindrical shells with simply supported or clamped boundaries with analytical and numerical results. The results show that employing one bending mode and one or two membrane modes is sufficient to yield engineering accuracy for design purposes.
Static and dynamic stochastic neutronic reactor analysis with thermal-hydraulic feedback
Creators: name: Μυλωνάκης, Αντώνιος Γ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Nuclear reactor
Monte-Carlo
Neutron transport equation
Multiphysics
Πυρηνικός αντιδραστήρας
Εξίσωση μεταφοράς νετρονίων
Aλληλεπιδρώντα φαινόμενα

description: Some of the most important challenges that the Monte-Carlo based analysis of the nuclear reactor core physics faces nowadays are the insertion of efficient thermal-hydraulic feedback, the extension to the study of transient phenomena and the convergence acceleration of the algorithm that is utilised to analyse reactor criticality. These requirements are imposed by the fact that nuclear reactor analysis moves continuously towards a multiphysics direction with demands for higher and higher levels of accuracy combined with high computational cost-effectiveness. This thesis tries to meet these three challenges by suggesting algorithms which can cope with the encountered issues. The programming development of these algorithms along with their initial evaluation are presented and analysed. The results are encouraging showing numerical improvement and increase of the accuracy, as well as leading to the expansion of the current stochastic neutronics. Thus the present findings could contribute to the extension of the Monte Carlo approach for a more global and accurate analysis of the reactor core system with a reasonable computational cost.
description: Μερικά από τα πιο σημαντικά προβλήματα που αντιμετωπίζει η στοχαστική ανάλυση της φυσικής πυρηνικού αντιδραστήρα είναι η εισαγωγή αποδοτικής θερμοϋδραυλικής ανάδρασης, η επέκταση στην ανάλυση μεταβατικών φαινομένων και η επιτάχυνση σύγκλισης του αλγορίθμου που χρησιμοποιείται για την ανάλυση κρισιμότητας αντιδραστήρα. Τα προβλήματα αυτά προκύπτουν από το γεγονός ότι το πεδίο της ανάλυσης αντιδραστήρα απαιτεί τη συνολική αντιμετώπιση των εμπλεκόμενων φυσικών φαινομένων αντί του καθενός ξεχωριστά σε συνδυασμό με την προσπάθεια αύξησης της ακρίβειας των υπολογισμών και την ταυτόχρονη μείωση του υπολογιστικού κόστους. Η διατριβή αυτή προσπαθεί να ικανοποιήσει τα τρία προαναφερθέντα προβλήματα προτείνοντας κατάλληλους αλγορίθμους. Οι αλγόριθμοι αυτοί παρουσιάζονται και αναλύονται. Τα αποτελέσματα είναι ενθαρρυντικά και δείχνουν βελτίωση της αριθμητικής απόδοσης και αύξηση της ακρίβειας . Επίσης οδηγούν στην επέκταση των παρόντων τεχνικών νετρονικής ανάλυσης. Συνεπώς τα ευρήματα της παρούσας διατριβής θα μπορούσαν να συμβάλουν στην επέκταση της στοχαστικής μεθόδου ανάλυσης αντιδραστήρα ώστε να επιτευχθεί πιο ευρεία και ακριβής ανάλυση του συστήματος πυρηνικός αντιδραστήρας με λογικό υπολογιστικό κόστος.
Faschismus und Nationalsozialismus im Spiegel ihrer Kulturbeziehungen
Creators: name: Hoffend, Andrea
Publisher: name: Moving the Social
Year: 2015

description: This is the contribution "Faschismus und Nationalsozialismus im Spiegel ihrer Kulturbeziehungen" of MTS 21 (1998).
description: Moving the Social, Vol 21 (1998): Sozialgeschichte und soziale Bewegungen in Italien 1848-1998: Forschungen und Forschungsberichte
Zwischen Risorgimento und Faschismus - Die Forschung im Überblick
Creators: name: Kölling, Bernd
Publisher: name: Moving the Social
Year: 2015

description: This is the contribution "Zwischen Risorgimento und Faschismus - Die Forschung im Überblick" of MTS 21 (1998).
description: Moving the Social, Vol 21 (1998): Sozialgeschichte und soziale Bewegungen in Italien 1848-1998: Forschungen und Forschungsberichte
Öffentliche Meinung, Europawahlen und Referenden in der Europäischen Union. Guido Tiemann/Oliver Treib/Andreas Wimmel: Die EU und ihre Bürger, Wien: facultas. wuv 2011
Creators: name: Mittag, Jürgen
Publisher: name: Moving the Social
Year: 2015

description: Guido Tiemann/Oliver Treib/Andreas Wimmel: Die EU und ihre Bürger, Wien: facultas. wuv 2011.
description: Moving the Social, Vol 47 (2012): Essays on social history and the history of social movements
The Inner Accretion Flow in the Resurgent Seyfert-1.2 AGN Mrk 817
Creators: name: Miller, J. M.
name: Zoghbi, Z.
name: Reynolds, M. T.
name: Raymond, J.
name: Barret, D.
name: Behar, E.
name: Brandt, W. N.
name: Brenneman, L.
name: Draghis, P.
name: Kammoun, E.
name: Koss, M. J.
name: Lohfink, A.
name: Stern, D. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Accretion disks and coronae around massive black holes have been studied extensively, and they are known to be coupled. Over a period of 30 years, however, the X-ray (coronal) flux of Mrk 817 increased by a factor of 40 while its UV (disk) flux remained relatively steady. Recent high-cadence monitoring finds that the X-ray and UV continua in Mrk 817 are also decoupled on time scales of weeks and months. These findings could require mechanical beaming of the innermost accretion flow, and/or an absorber that shields the disk and/or broad line region (BLR) from the X-ray corona. Herein, we report on a 135 ks observation of Mrk 817 obtained with NuSTAR, complemented by simultaneous X-ray coverage via the Neil Gehrels Swift Observatory. The X-ray data strongly prefer a standard relativistic disk reflection model over plausible alternatives. Comparable fits with related models constrain the spin to lie in the range 0.5 < a < 1, and the viewing angle to lie between 10 deg. < theta < 22 deg. (including 1-sigma statistical errors and small systematic errors related to differences between the models). The spectra also reveal strong evidence of moderately ionized absorption, similar to but likely less extreme than obscuring events in NGC 5548 and NGC 3783. Archival Swift data suggest that the absorption may be variable. Particularly if the column density of this absorber is higher along the plane of the disk, it may intermittently mask or prevent coupling between the central engine, disk, and BLR in Mrk 817.
description: Accepted for publication in ApJ Letters
Hidden scale invariance in Navier-Stokes intermittency
Creators: name: Mailybaev, Alexei A.
name: Thalabard, Simon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We expose a hidden scaling symmetry of the Navier-Stokes equations in the limit of vanishing viscosity, which stems from dynamical space-time rescaling around suitably defined Lagrangian scaling centers. At a dynamical level, the hidden symmetry projects solutions which differ up to Galilean invariance and global temporal scaling onto the same representative flow. At a statistical level, this projection repairs the scale invariance, which is broken by intermittency in the original formulation. Following previous work by the first author, we here postulate and substantiate with numerics that hidden symmetry statistically holds in the inertial interval of fully developed turbulence. We show that this symmetry accounts for the scale-invariance of a certain class of observables, in particular, the Kolmogorov multipliers.
description: 18 pages, 4 figures
Data-driven nonintrusive reduced order modeling for dynamical systems with moving boundaries using Gaussian process regression
Creators: name: Ma, Zhan
name: Pan, Wenxiao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Dynamical Systems (math.DS)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We present a data-driven nonintrusive model order reduction method for dynamical systems with moving boundaries. The proposed method draws on the proper orthogonal decomposition, Gaussian process regression, and moving least squares interpolation. It combines several attributes that are not simultaneously satisfied in the existing model order reduction methods for dynamical systems with moving boundaries. Specifically, the method requires only snapshot data of state variables at discrete time instances and the parameters that characterize the boundaries, but not further knowledge of the full-order model and the underlying governing equations. The dynamical systems can be generally nonlinear. The movements of boundaries are not limited to prescribed or periodic motions but can be free motions. In addition, we numerically investigate the ability of the reduced order model constructed by the proposed method to forecast the full-order solutions for future times beyond the range of snapshot data. The error analysis for the proposed reduced order modeling and the criteria to determine the furthest forecast time are also provided. Through numerical experiments, we assess the accuracy and efficiency of the proposed method in several benchmark problems. The snapshot data used to construct and validate the reduced order model are from analytical/numerical solutions and experimental measurements.
Lattice walks ending on a coordinate hyperplane avoiding backtracking and repeats
Creators: name: Machacek, John
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: Primary 05A15, Secondary 05A16, 33F10, 68Q45

description: We work with lattice walks in $\mathbb{Z}^{r+1}$ using step set $\{\pm 1\}^{r+1}$ that finish with $x_{r+1} = 0$. We further impose conditions of avoiding backtracking (i.e. $[v,-v]$) and avoiding consecutive steps (i.e. $[v,v]$) each possibly combined with restricting to the half-space $x_{r+1} \geq 0$. We find in all cases the generating functions for such walks are algebraic and give explicit formulas for them. We also find polynomial recurrences for their coefficients. From the generating functions we find the asymptotic enumeration of each family of walks considered. The enumeration in special cases includes central binomial coefficients and Catalan numbers as well as relations to enumeration of another family of walks previously studied for which we provide bijection.
A rule-based system for preliminary accident reconstruction
Creators: name: Krajczar, Karoly William
Publisher: name: University of British Columbia
Year: 2010

description: Expert systems are being used to solve a number of complex problems that conventional programming techniques have difficulty managing. Problems that are conceptual and cannot be reduced to numbers, can often be solved using expert system technology. This paper describes the development of a prototype rule-based expert system that can be used during the initial stages of a motor vehicle accident investigation. The program is capable of calculating vehicle speeds using any combination of the following techniques: skid, roll, overturn, yaw, vault, momentum and energy. Although the program's analytical capabilities are very comprehensive, the system's most notable feature is it's interpretive abilities. The program is able to determine how to solve the accident, and verifies the evidence before it is used in the calculations. Additionally, an interactive explanation facility allows the user to examine the program's reasoning. The existing knowledge base requires further development before it can achieve the level of performance expected from trained accident investigators. However, it demonstrates how expert system technology in conjunction with conventional techniques can be used to solve complex engineering problems.
ปัญหาทางกฎหมายในการให้ความคุ้มครองเด็ก ศึกษาเฉพาะกรณี การสอบปากคำเด็กในคดีอาญา
Creators: name: สุภาพร พิทักษ์เผ่าสกุล
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: การให้ความคุ้มครอง, การถามปากคำ, เด็ก, สหวิชาชีพ

description: 1, 32, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
Green functions and nonlinear systems: Short time expansion
Creators: name: Frasca, Marco
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We show that Green function methods can be straightforwardly applied to nonlinear equations appearing as the leading order of a short time expansion. Higher order corrections can be then computed giving a satisfactory agreement with numerical results. The relevance of these results relies on the possibility of fully exploiting a gradient expansion in both classical and quantum field theory granting the existence of a strong coupling expansion. Having a Green function in this regime in quantum field theory amounts to obtain the corresponding spectrum of the theory.
description: 7 pages, 3 figures. Version accepted for publication in International Journal of Modern Physics A
ความสัมพันธ์ระหว่างการบริหารกิจกรรมงานตรวจสอบภายในกับประสิทธิผลการดำเนินงานของบริษัทจดทะเบียนในตลาดหลักทรัพย์แห่งประเทศไทย
Creators: name: อรอุมา  บุตรแสง
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: การบริหารกิจกรรมงานตรวจสอบภายใน, ประสิทธิผลการดำเนินงาน, บริษัทจดทะเบียนในตลาดหลักทรัพย์แห่งประเทศไทย

description: 2, 33, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
Experimental investigation of barrel damage mechanisms in electromagnetic railguns
Creators: name: Berisford, Daniel Floyd
Publisher: name: The University of Texas at Austin
Year: 2004
Subjects: Electromagnetic railguns
Armature damage
Startup damage
Arcing contact

description: Electromagnetic railguns suffer from several major sources of damage. The first is transition to arcing contact, in which the sides of the armature wear away, leaving a gap in which an arc forms between the armature and the rails. The second is startup damage that appears as grooving near the rail edges in the armature startup region. Using the 40mm square bore Medium Caliber Launcher at the Institute for Advanced Technology, we analyzed the results from several shot series, each on the same set of rails with 1, 3, 7, and 20 shots. We discovered that the damage from both mechanisms is cumulative with increasing number of shots, making them both serious hurdles to overcome before railguns can be practically fielded. Furthermore, we studied the aluminum layer deposited by the armature onto the rail surface in pre-transition locations, where the rails displayed no damage. Thus, the layer is a key indicator as to whether the rails have suffered damage. A similar aluminum layer exists in the startup region and additional experiments that involved etching it away between shots showed that the layer also helps to protect the rails from startup damage, but does not prevent it completely.
The hidden competing phase revealed by first-principles calculations of phonon instability in the nearly optimally doped cuprate La$_{1.875}$Sr$_{0.125}$CuO$_4$
Creators: name: Lee, Chi-Cheng
name: Chiu, Ji-Yao
name: Yamada-Takamura, Yukiko
name: Ozaki, Taisuke
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The representative cuprate, La$_{2-x}$M$_x$CuO$_4$, with M = Sr and $x = 1/8$ is studied via first-principles calculations in the high-temperature tetragonal (HTT), low-temperature orthorhombic (LTO), and low-temperature less-orthorhombic (LTLO) structures. By suppressing the magnetism and superconductivity, the LTLO phase, which has rarely been observed in La$_{2-x}$Sr$_x$CuO$_4$, is found to be the ground state, where the structural phase transitions, HTT$\rightarrow$LTO$\rightarrow$LTLO, can be understood via phonon instability. While the La-O composition is identified to be responsible for the phonon softening, the superconducting CuO$_2$ layer is dynamically stable. The LTLO phase, which can exhibit a $\sim$20 meV splitting in the density of states, is proposed to have an intimate relationship with the observed pseudogap and the charge density wave giving the stripe. We argue that at low temperatures, the superconducting LTO La$_{1.875}$Sr$_{0.125}$CuO$_4$ competes with the phonon-preferred LTLO phase by spontaneously forming the Cooper pairs, resulting in suppressing the stripe. Therefore, the revealed LTLO phase is indispensable for understanding La$_{2-x}$Sr$_x$CuO$_4$.
description: 5 pages, 4 figures
Statistical physics of the Schelling model of segregation
Creators: name: Dall'Asta, Luca
name: Castellano, Claudio
name: Marsili, Matteo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We investigate the static and dynamic properties of a celebrated model of social segregation, providing a complete explanation of the mechanisms leading to segregation both in one- and two-dimensional systems. Standard statistical physics methods shed light on the rich phenomenology of this simple model, exhibiting static phase transitions typical of kinetic constrained models, nontrivial coarsening like in driven-particle systems and percolation-related phenomena.
description: 4 pages, 3 figures
พฤติกรรมการดำเนินชีวิตตามปรัชญาเศรษฐกิจพอเพียงของชุมชนเศรษฐกิจพอเพียงบ้านหนองจิกสี หมู่ที่ 9 ตำบลแหลมรัง อำเภอบึงนาราง จังหวัดพิจิตร
Creators: name: สมเกียรติ ชัยพิบูลย์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: พฤติกรรม, เศรษฐกิจพอเพียง, ชุมชนเศรษฐกิจพอเพียง

description: 2, 33, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
Fault Current Limiter Dynamic Voltage Restorer (FCL-DVR) with Reduced Number of Components
Creators: name: Ghavidel, Pedram
name: Farhadi, Masoud
name: Dabbaghjamanesh, Morteza
name: Jolfaei, Alireza
name: Sabahi, Mehran
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, a new dual function fault current limiter-dynamic voltage restorer (FCL-DVR) topology is proposed. The proposed structure, in addition to performing routine FCL tasks, can be used to improve the voltage quality of point of common coupling (PCC). A salient feature of this FCL-DVR is its reduced number of semiconductor switches and gate drive and control circuit components. Perhaps, variety structure of FCL-DVR have been proposed but most distinctive feature of proposed structure is lower power loss. The operation modes and the control strategy of the FCL have been presented and studied. In addition, the proposed structure has been compared with other structures to prove the efficiency of proposed structure. The simulation results as well as experimental outcomes from a laboratory scaled-down prototype are provided, which prove the efficiency and feasibility of the proposed structure.
Structural Fluctuations in the Spin Liquid State of Tb2Ti2O7
Creators: name: Ruff, J. P. C.
name: Gaulin, B. D.
name: Castellan, J. P.
name: Rule, K. C.
name: Clancy, J. P.
name: Rodriguez, J.
name: Dabkowska, H. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: High resolution X-ray scattering measurements on single crystal Tb2Ti2O7 reveal finite structural correlations at low temperatures. This geometrically frustrated pyrochlore is known to exhibit a spin liquid, or cooperative paramagnetic state, at temperatures below ~ 20 K. Parametric studies of structural Bragg peaks appropriate to the Fd$\bar{3}$m space group of Tb2Ti2O7 reveal substantial broadening and peak intensity reduction in the temperature regime 20 K to 300 mK. We also observe a small, anomalous lattice expansion on cooling below a density maximum at ~ 18 K. These measurements are consistent with the development of fluctuations above a cooperative Jahn-Teller, cubic-tetragonal phase transition at very low temperatures.
description: 5 pages, 4 figures, submitted for publication
The Impact of Springer Compact Agreements on OA Transformation from a Data Analysis Perspective
Creators: name: Pieper, Dirk
Publisher: name: Zenodo
Year: 2019

description: The OpenAPC initiative (https://treemaps.intact-project.org/) was first presented at the 44th LIBER conference 2015. During the INTACT project (2015 – 2018) OpenAPC became the authoritative source for collecting and disseminating APC cost data. For the next phase, funded by the Federal Ministry of Education and Research in Germany, OpenAPC is expanding aims and scope by involving additional bibliometric data and workflows to better estimate and calculate the costs of open access publishing and the ongoing open access transition. The potential of this approach is shown with the example of analysing Springer Compact agreements.

The presentation will demonstrate, to which extend existing Springer Compact agreements have contributed to the open access shares of articles within Springer journals during the last years (https://treemaps.intact-project.org/apcdata/offsetting/). With regard to the ongoing DEAL negotiations (https://www.projekt-deal.de/about-deal/) in Germany, the presentation will also introduce a simulation analysis approach, which answers the hypothetical question what would have happened, if all German corresponding/reprint authors would have published additionally open access in Springer Compact journals during the last years. The results of this analysis can provide some suggestions to improve and adapt open access transition strategies within offsetting agreements.
Additional file 1 of Quantitative CT screening improved lumbar BMD evaluation in older patients compared to dual-energy X-ray absorptiometry
Creators: name: Lin, Wentao
name: He, Chaoqin
name: Xie, Faqin
name: Chen, Tao
name: Zheng, Guanghao
name: Yin, Houjie
name: Chen, Haixiong
name: Wang, Zhiyun
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified

description: Additional file 1: Supplementary Table 1. Distribution of diagnostic category for lumbar BMD in female.
On the Random Motion of Nuclear Objects in a Fuzzy Dark Matter Halo
Creators: name: Chowdhury, Dhruba Dutta
name: Bosch, Frank C. van den
name: Robles, Victor H.
name: van Dokkum, Pieter
name: Schive, Hsi-Yu
name: Chiueh, Tzihong
name: Broadhurst, Tom
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Fuzzy Dark Matter (FDM), consisting of ultralight bosons ($m_{\rm b} \sim 10^{-22}\ \rm eV$), is an intriguing alternative to Cold Dark Matter. Numerical simulations that solve the Schrödinger-Poisson (SP) equation show that FDM halos consist of a central solitonic core, which is the ground state of the SP equation, surrounded by an envelope of interfering excited states. These excited states also interfere with the soliton, causing it to oscillate and execute a confined random walk with respect to the halo center of mass. Using high-resolution numerical simulations of a $6.6 \times 10^9 M_{\odot}$ FDM halo with $m_{\rm b} = 8 \times 10^{-23}\ \rm eV$ in isolation, we demonstrate that the wobbling, oscillating soliton gravitationally perturbs nuclear objects, such as supermassive black holes or dense star clusters, causing them to diffuse outwards. In particular, we show that, on average, objects with mass $\lesssim 0.3 \%$ of the soliton mass ($M_{\rm sol}$) are expelled from the soliton in $\sim 3\ \rm Gyr$, after which they continue their outward diffusion due to gravitational interactions with the soliton and the halo granules. More massive objects ($\gtrsim 1 \% M_{\rm sol}$), while executing a random walk, remain largely confined to the soliton due to dynamical friction. We also present an effective treatment of the diffusion, based on kinetic theory, that accurately reproduces the outward motion of low mass objects and briefly discuss how the observed displacements of star clusters and active galactic nuclei from the centers of their host galaxies can be used to constrain FDM.
description: 20 pages, 9 figures, minor revisions, accepted for publication in ApJ
A method for the direct determination of the surface gravities of transiting extrasolar planets
Creators: name: Southworth, John
name: Wheatley, Peter J.
name: Sams, Giles
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We show that the surface gravity of a transiting extrasolar planet can be calculated from only the spectroscopic orbit of its parent star and the analysis of its transit light curve. This does not require additional constraints, such as are often inferred from theoretical stellar models or model atmospheres. The planet's surface gravity can therefore be measured precisely and from only directly observable quantities. We outline the method and apply it to the case of the first known transiting extrasolar planet, HD 209458b. We find a surface gravity of g_p = 9.28 +/- 0.15 m/s, which is an order of magnitude more precise than the best available measurements of its mass, radius and density. This confirms that the planet has a much lower surface gravity that that predicted by published theoretical models of gas giant planets. We apply our method to all fourteen known transiting extrasolar planets and find a significant correlation between surface gravity and orbital period, which is related to the known correlation between mass and period. This correlation may be the underlying effect as surface gravity is a fundamental parameter in the evaporation of planetary atmospheres.
description: Accepted for publication in MNRAS Letters (original submission 2007 March 5). Contains 5 pages with 3 figures
การประเมินความเสี่ยงคุณภาพนํ้าจากอ่างเก็บนํ้าเพื่อการบริโภคและการชลประทาน: โครงการในพระราชดำริอ่างเก็บนํ้าแม่ปืม อำเภอแม่ใจ จังหวัดพะเยา
Creators: name: จอมจันทร์ นทีวัฒนา
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: โครงการในพระราชดำริอ่างเก็บน้ำแม่ปืม อำเภอแม่ใจ จังหวัดพะเยา, คุณภาพน้ำ, การประเมินความเสี่ยง, น้ำบริโภค, น้ำชลประทาน

description: 6, 33, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Dynamical Backaction Magnomechanics
Creators: name: Potts, C. A.
name: Varga, E.
name: Bittencourt, V. A. S. V.
name: Kusminskiy, S. Viola
name: Davis, J. P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Dynamical backaction resulting from radiation pressure forces in optomechanical systems has proven to be a versatile tool for manipulating mechanical vibrations. Notably, dynamical backaction has resulted in the cooling of a mechanical resonator to its ground-state, driving phonon lasing, the generation of entangled states, and observation of the optical-spring effect. In certain magnetic materials, mechanical vibrations can interact with magnetic excitations (magnons) via the magnetostrictive interaction, resulting in an analogous magnon-induced dynamical backaction. In this article, we directly observe the impact of magnon-induced dynamical backaction on a spherical magnetic sample's mechanical vibrations. Moreover, dynamical backaction effects play a crucial role in many recent theoretical proposals; thus, our work provides the foundation for future experimental work pursuing many of these theoretical proposals.
description: Accepted version with appendices
An assessment of road safety equations for British Columbia
Creators: name: Appeadu, Charles Edward
Publisher: name: University of British Columbia
Year: 2010

description: Five quantitative relationships relating some geometric features of two-lane rural highways to accident rates were reported in Special Report 214 of the Transportation Research Board. In this study, three of these models were applied to data from several two-lane sections of two rural highways in the province of British Columbia. The models were used to predict accident rates in the road sections for the five-year period covering 1981 to 1985. The R² values resulting from linear regression analyses of the predicted accident rates on the actual accident rates were used as a measure of the applicability of the models to the study area. The results of this study are valuable for conducting an extensive road safety study on two-lane rural highways in British Columbia, primarily, and other regions of the world.
Travaux pratiques sur les réseaux locaux de type WIFI utilisant des simulations numériques des phénomènes de propagation des ondes électromagnétiques
Creators: name: Demontoux, François
name: Miane, Jean-Louis
Publisher: name: arXiv
Year: 2007
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: The wireless network technology WiFi finds more and more applications in the industrial field as for the exchange of information between the people or the equipment. It has the advantage of allowing a great flexibility of the network but requires precautions of installation to be effective (flow, reliability...). The fitter of such a network must have knowledge to install and configure the materials (access points, wifi interface) but also of knowledge in propagation of electromagnetic waves which is the support of the transmission of data. The teaching of this technology requires practical works which must make it possible for the student to implement this knowledge. This article presents the various means of calculations which we implemented within the framework of practical works to allow the student to visualize and thus to better control the phenomena of propagation existing in a WiFI network.
การพัฒนาแบบฝึกความสามารถทางด้านเหตุผล โดยใช้เพลงเสริมปัญญา เรื่อง สิ่งรอบตัวเรา ธรรมชาติรอบตัวและสารรอบตัว สาระการเรียนรู้วิทยาศาสตร์ ชั้นประถมศึกษาปีที่ 3
Creators: name: มลิวรรณ เขจรศาสตร์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: แบบฝึกความสามารถทางด้านเหตุผล, เพลงเสริมปัญญา, สิ่งรอบตัวเรา, ธรรมชาติรอบตัว, สารรอบตัว, สาระการเรียนรู้วิทยาศาสตร์ ชั้นประถมศึกษาปีที่ 3

description: 6, 33, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
การวิเคราะห์ปัญหาและการทดสอบความมั่นคงของเทคโนโลยีรหัสผ่านแบบใช้ครั้งเดียว
Creators: name: ประพจน์ ธรรมศิรารักษ์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2558
Subjects: รหัสผ่านแบบใช้ครั้งเดียว, การโจมตีระบบธนาคารออนไลน์, การยืนยันตัวตนแบบพหุปัจจัย

description: 1, 34, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
ความสัมพันธ์ในการรับรู้ความสามารถของตนเองต่อทัศนคติในการทำงานและผลสัมฤทธิ์ของงาน  :  กรณีศึกษากองพลทหารราบที่ 5
Creators: name: ภูมิเพชร ผลทรัพย์
Publisher: name: วิทยาลัยเทคโนโลยีภาคใต้
Year: 2553
Subjects: การรับรู้ความสามารถของตนเอง, ทัศนคติในการทำงาน, ผลสัมฤทธิ์ของงาน

description: 1, 3, วารสารเทคโนโลยีภาคใต้
High Speed Imaging of Spectral-Temporal Correlations in Hong-Ou-Mandel Interference
Creators: name: Zhang, Yingwen
name: England, Duncan
name: Nomerotski, Andrei
name: Sussman, Benjamin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work we demonstrate spectral-temporal correlation measurements of the Hong-Ou-Mandel (HOM) interference effect with the use of a spectrometer based on a photon-counting camera. This setup allows us to take, within seconds, spectral temporal correlation measurements on entangled photon sources with sub-nanometer spectral resolution and nanosecond timing resolution. Through post processing, we can observe the HOM behaviour for any number of spectral filters of any shape and width at any wavelength over the observable spectral range. Our setup also offers great versatility in that it is capable of operating at a wide spectral range from the visible to the near infrared and does not require a pulsed pump laser for timing purposes. This work offers the ability to gain large amounts of spectral and temporal information from a HOM interferometer quickly and efficiently and will be a very useful tool for many quantum technology applications and fundamental quantum optics research.
On restrictions of balanced 2-interval graphs
Creators: name: Gambette, Philippe
name: Vialette, Stéphane
Publisher: name: arXiv
Year: 2007
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: The class of 2-interval graphs has been introduced for modelling scheduling and allocation problems, and more recently for specific bioinformatic problems. Some of those applications imply restrictions on the 2-interval graphs, and justify the introduction of a hierarchy of subclasses of 2-interval graphs that generalize line graphs: balanced 2-interval graphs, unit 2-interval graphs, and (x,x)-interval graphs. We provide instances that show that all the inclusions are strict. We extend the NP-completeness proof of recognizing 2-interval graphs to the recognition of balanced 2-interval graphs. Finally we give hints on the complexity of unit 2-interval graphs recognition, by studying relationships with other graph classes: proper circular-arc, quasi-line graphs, K_{1,5}-free graphs, ...
การพัฒนาศูนย์ข้าวชุมชน : กรณีศึกษาบ้านป่าระกำ อำเภอปากพนัง จังหวัดนครศรีธรรมราช
Creators: name: ศรธวรรณ์รัศร์  แท่นสุวรรณ
Publisher: name: วิทยาลัยเทคโนโลยีภาคใต้
Year: 2554
Subjects: ศูนย์ข้าวชุมชน, บ้านป่าระกำ

description: 1, 4, วารสารเทคโนโลยีภาคใต้
ตะกายดาว : ชีวิตต้องสู้ของผู้หญิงออฟฟิศ
Creators: name: กมลวรรณ  คงยก; สุรพงษ์  ยิ้มละมัย
Publisher: name: วิทยาลัยเทคโนโลยีภาคใต้
Year: 2554
Subjects: ตะกายดาว, ชีวิตต้องสู้, ผู้หญิงออฟฟิศ

description: 1, 4, วารสารเทคโนโลยีภาคใต้