cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Dynamic interactions between elements of mechanical oscillation systems. Possibilities estimation of force parameters
Creators: name: Bolshakov, R.S.
name: Mironov, A.S.
name: Dimov, A.V.
name: Eliseev, S.V.
name: Eliseev, A.V.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The use of responses of constraints as a criterion for estimating the dynamic state of mechanical oscillatory systems is considered in the article. The proposed approach is based on the possibilities of transforming the structural diagrams of the dynamically equivalent automatic control systems. The transformation of such computational schemes makes it possible to isolate in the mechanical oscillatory system the object of protection and negative feedback, which is a dynamic reaction. A number of examples of amplitude-frequency characteristics obtained for different values of the stiffness of one of the elastic elements are given in the paper.
Young Stellar Objects in Lynds 1641: Disks, Accretion, and Star Formation History
Creators: name: Fang, Min
name: Kim, Jinyoung Serena
name: van Boekel, Roy
name: Sicilia-Aguilar, Aurora
name: Henning, Thomas
name: Flaherty, Kevin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the young stellar objects (YSOs) in the Lynds~1641 (L1641) cloud using multi-wavelength data including Spitzer, WISE, 2MASS, and XMM covering ~1390 YSOs across a range of evolutionary stages. In addition, we targeted a sub-sample of YSOs for optical spectroscopy. We use this data, along with archival photometric data, to derive spectral types, extinction values, masses, ages, as well as accretion rates. We obtain a disk fraction of ~50% in L1641. The disk frequency is almost constant as a function of stellar mass with a slight peak at log(M_*/M_sun)\approx-0.25. The analysis of multi-epoch spectroscopic data indicates that the accretion variability of YSOs cannot explain the two orders of magnitude of scatter for YSOs with similar masses. Forty-six new transition disk (TD) objects are confirmed in this work, and we find that the fraction of accreting TDs is lower than for optically thick disks (40--45% vs. 77--79% respectively). We confirm our previous result that the accreting TDs have a similar median accretion rate to normal optically thick disks. We confirm that two star formation modes (isolated vs. clustered) exist in L1641. We find that the diskless YSOs are statistically older than the YSOs with optically-thick disks and the transition disk objects have a median age which is intermediate between the two populations. We tentatively study the star formation history in L1641 based on the age distribution and find that star formation started to be active 2--3 Myr ago.
description: 112 pages, 46 figures, 6 tables, accepted by ApJs
Hawking radiation for a Proca field in D dimensions II: charged field in a brane charged black hole
Creators: name: Wang, Mengjie
name: Sampaio, Marco O. P.
name: Herdeiro, Carlos
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We generalise our first analysis of the wave equation for a massive vector boson in the background of a D-dimensional Schwarzschild black hole, by adding charge both to the field and the black hole, on the 3+1 dimensional Standard Model brane. A detailed numerical study is performed to obtain the transmission factor for the coupled (as well as decoupled) system of equations describing the Proca field modes, varying the angular momentum number, mass, charge and space-time dimensions. A qualitatively new feature arising from the introduction of charge is the appearance of superradiant modes, which we investigate. We then compute the Hawking fluxes, and analyse the effect of the charge. In particular we observe an inverted charge splitting effect for small energies and for two or more extra dimensions. For neutral fields, we compare the emission of massive particles with spins up to one and also compare the Proca bulk-to-brane ratio of energy emission, showing that, as for a scalar field, most of the energy is emitted on the brane.
description: 11 pages, 4 figures, matched to published version
title: Investigation of the stress state of an elastic medium in the form of a half-space and a layer with a cylindrical pipe, at stresses specified on boundary surfaces
Creators: name: Miroshnikov, V.Yu.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The spatial problem of the theory of elasticity for an elastic medium in the form of a half-space rigidly adhered to a layer in which there is a longitudinal thick-walled circular cylindrical pipe is solved. Layer, half-space and pipe - homogeneous isotropic materials are distinct from each other.
The stresses are set on the free surface of the layer and the inner surface of the pipe. At the boundary of the layer and half-space, as well as at the boundary of the layer and the outer surface of the pipe, the matching conditions are specified. It is necessary to analyze the stress state of a given composite medium.
Based on the generalized Fourier method, the spatial problem of the theory of elasticity is obtained in cylindrical coordinates associated with the pipe and Cartesian coordinates associated with the layer and half-space. Satisfying the boundary and conjugation conditions, we obtain infinite systems of linear algebraic equations that are solved by the reduction method. As a result, displacements and stresses were obtained at various points of the layer, half-space, and pipe.
Recombination rates from potential models close to the unitary limit
Creators: name: Garrido, E.
name: Gattobigio, M.
name: Kievsky, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate universal behavior in the recombination rate of three bosons close to threshold. Using the He-He system as a reference, we solve the three-body Schrödinger equation above the dimer threshold for different potentials having large values of the two-body scattering length $a$. To this aim we use the hyperspherical adiabatic expansion and we extract the $S$-matrix through the integral relations recently derived. The results are compared to the universal form, $α\approx 67.1\sin^2[s_0\ln(κ_*a)+γ]$, for different values of $a$ and selected values of the three-body parameter $κ_*$. A good agreement with the universal formula is obtained after introducing a particular type of finite-range corrections, which have been recently proposed by two of the authors in Ref.[1]. Furthermore, we analyze the validity of the above formula in the description of a very different system: neutron-neutron-proton recombination. Our analysis confirms the universal character of the process in systems of very different scales having a large two-body scattering length.
Probing Dark Matter at the LHC using Vector Boson Fusion Processes
Creators: name: Delannoy, Andres G.
name: Dutta, Bhaskar
name: Gurrola, Alfredo
name: Johns, Will
name: Kamon, Teruki
name: Luiggi, Eduardo
name: Melo, Andrew
name: Sheldon, Paul
name: Sinha, Kuver
name: Wang, Kechen
name: Wu, Sean
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Vector boson fusion (VBF) processes at the Large Hadron Collider (LHC) provide a unique opportunity to search for new physics with electroweak couplings. A feasibility study for the search of supersymmetric dark matter in the final state of two VBF jets and large missing transverse energy is presented at 14 TeV. Prospects for determining the dark matter relic density are studied for the cases of Wino and Bino-Higgsino dark matter. The LHC could probe Wino dark matter with mass up to approximately 600 GeV with a luminosity of 1000 fb$^{-1}$.
description: 4 pages, 5 figures
title: Engineering platform for harvesting horticultural crops
Creators: name: Khort, D.O.
name: Filippov, R.A.
name: Kutyrev, А.I.
name: Semichev, S.V.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The article presents the engineering stages of the platforms to harvest horticultural crops, developed in the center FSAC VIM. A 3D model and a block diagram of its design process are presented. The expediency and efficiency of using CAD design systems in the development of agricultural machinery with various technological adaptors that allow to automate processes in machine technologies of industrial production of horticulture products is substantiated.
title: Anthropomorphic elastic manipulator dynamics at optimum controlled motion
Creators: name: Bokhonsky, A.I.
name: Varminskaya, N.I.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The optimal rotational motion in the horizontal plane of the anthropomorphic manipulator with elements of finite stiffness from the initial to the final position of absolute quiescence was studied using skew-symmetric acceleration-deceleration controls. The complex motion is divided into figurative and relative (elastic oscillations of the links). Absolute quiescence at the end of the motion is the sum of figurative and relative quiescence.
Generalized Fourier series and shift-invariant subspaces
Creators: name: Kazarian, K. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42A24 (Primary), 41A30, 42A65, 42A8 (Secondary)

description: A principal shift invariant subspace of $L^{2}(\IR)$ is isometric to a weighted norm space $L^{2}(\IT, w)$. Using results obtained earlier by the author on the basis properties of subsystems of the trigonometric system in the weighted norm spaces $L^{2}(\IT, w)$ we obtain corresponding results concerning generators of principal shift invariant subspaces.
description: 9 pages
Gravitating cosmic strings with flat directions
Creators: name: Hartmann, Betti
name: Lopez-Eiguren, Asier
name: Sousa, Kepa
name: Urrestilla, Jon
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study field theoretical models for cosmic strings with flat directions in curved space-time. More precisely, we consider minimal models with semilocal, axionic and tachyonic strings, respectively. In flat space-time, the string solutions of these models have a flat direction, i.e., a uniparametric family of configurations with the same energy exists which is associated to a zero mode. We prove that the zero mode survives coupling to gravity, and study the role of the flat direction when coupling the strings to gravity. Even though the total energy of the solution is the same, and thus the global properties of the family of solutions remains unchanged, the energy density, and therefore the gravitational properties, are different. The local structure of the solutions depends strongly on the value of the parameter describing the flat direction; for example, for supermassive strings, the value of the free parameter can determine the size of the universe.
description: 14 pages, 11 figures; matches version to be published in JHEP
Chandra identification of 26 new black hole candidates in the central region of M31
Creators: name: Barnard, R.
name: Garcia, M. R.
name: Murray, S. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We have previously identified 10 M31 black hole candidates (BHCs) in M31, from their X-ray properties alone. They exhibit "hard state" emission spectra that are seen at luminosities < ~10% Eddington in X-ray binaries (XBs) containing a neutron star (NS) or black hole (BH), at luminosities that significantly exceed the NS threshold. Nine of these are associated with globular clusters (GCs); hence, these are most likely low mass X-ray binaries (LMXBs); eight are included in this survey. We have recently discovered that analysis of the long term 0.5--4.5 keV variability of XBs via structure functions allows us to separate XBs from AGN, even though the emission spectra are often similar; this has enabled us to search for BHCs outside of GCs. We have identified 26 new BHCs (12 strong, 14 plausible) within 20' of the M31 nucleus (M31*), using 152 Chandra observations spaced over ~13 years; some of our classifications were enhanced with XMM-Newton observations. Of these, 7 appear within 100" of M31*; this supports the theory suggesting that this region experiences enhanced XB production via dynamical processes similar to those seen in GCs. We have found a parameter space where our black hole candidates are separated from Galactic neutron star binaries: we show that modelling a simulated hard state spectrum with a disk blackbody + blackbody model yields parameters that lie outside the space occupied by neutron star binaries that are modeled this way. The probability that our BHCs all lie within the NS parameter space is ~3E-29.
description: Accepted for publication in ApJ, 22 pages, 17 figures, 4 pages. Figures 3 and 5 have multiple pages (6 figures each), and are continued after the references
Wetting dynamics on lyophilic solid surfaces patterned by lyophobic islands
Creators: name: Tsekov, R.
name: Borissov, D.
name: Karakashev, S. I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A theory for wetting of structured solid surfaces is developed, based on the delta-comb periodic potential. It possesses two matching parameters: the effective line tension and the friction coefficient on the three-phase contact line at the surface. The theory is validated on the dynamics of spreading of liquid zinc droplets on morphologically patterned zinkophilic iron surface by means of square patterns of zinkophobic aluminum oxide. It is found that the effective line tension is negative and it has essential contribution to the dynamics of spreading. Thus, the theoretical analysis shows that the presence of lyophobic patterns situated on lyophilic surface makes the latter completely wettable, i.e. no equilibrium contact angle on such surface exists making the droplet spread completely in form of thin liquid layer on the patterned surface.
title: Production of the steel cutting by intermittent turning for determination its chemical composition
Creators: name: Khachaturyan, A.M.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The article discusses the features of the method of intermittent turning in relation to the production of steel cutting for determining its chemical composition from samples of the body type of rotation subjected to heat treatment. The article substantiates the processing scheme, selection of material of the cutting part of the cutters and the cutting conditions.
Cataulacus oberthueri Forel, 1891, n. sp.
Creators: name: Forel, A.
Publisher: name: L'Imprimerie Nationale
Year: 1891
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Cataulacus
Cataulacus oberthueri

description: 2. CATAULACUS OBERTHÜRI, Emery, n. sp. 1.
(Pl. iv, fig. 9.)
[[worker]]. D'un noir intense mat avec l'abdomen à peine luisant, l'extrémité des scapes et les articulations des pattes plus ou moins rougeâtres; pas de poils dressés sur le corps, hormis d'extrêmement petits poils épars, visibles à un très fort grossissement. La tête, le thorax et le pétiole sont couverts d'une ponctuation très fine, parsemés de points piligères plus forts et parcourus par des plis longitudinaux réguliers, peu élevés, presque lisses, à peine distincts sur le pronotum; sur le ventre, la ponctuation est moins fine et il n'y a pas de plis. La tête est rétrécie en avant, convexe en dessus, avec le bord latéral élevé n'offrant aucune trace de denticules; ce bord se prolonge en arrière en une sorte d'épine grande et aplatie, courbée en haut en forme de corne. L'épistome est déprimé au milieu, avec les angles latéraux un peu saillants, ridé plus finement que le reste de la tête. Le thorax est allongé, ayant les sutures un peu effacées sur le dos qui est bombé; le pronotum a le bord tranchant, avec les angles antérieurs obtus; le métanotum est plus fortement ridé longitudinalement et porte deux épines longues, aiguës, presque droites. Les pattes portent de longs poils dressés blanchâtres. Longueur 8,5 à 10,5 mill.
1 Je dois à l'obligeance de mon ami, M. Émery, la permission de joindre à mon travail cette belle espèce inédite dont il m'a envoyé la figure et la description.
Cette espèce est le géant du genre; elle est facilement reconnaissable à sa sculpture et aux rebords de la tête et du thorax qui n'ont pas de dentelures. Elle provient des chasses de M. E. Perrot à Tamatave et dans les forêts d'Alahakato, et elle m'a été donnée par M. René Oberthür, à qui je me fais un plaisir de la dédier. C. Emery.
Nota. Cette espèce a aussi été récoltée par M. A. O'Swald, dans un bois, à 3o milles au Nord-Ouest de Tamatave (Musée de Hambourg). A la description de M. Emery j'ajouterai que les deux articles du pédicule, surtout le premier, sont fort allongés (beaucoup plus longs que larges), et que les pattes sont assez longues et sans aspérités. Les angles posté- rieurs dilatés et cornus de la tête donnent à cette espèce aberrante un aspect tout à fait singulier. Il me semble qu'elle mérite de former un sous-genre que je proposerais d'appeler Otomyrmex.
description: Published as part of Forel, A., 1891, Histoire naturelle des Hymenopteres. Deuxieme partie: Les Formicides., pp. 1-231 in Histoire Physique, Naturelle et Politique de Madagascar., Paris :L'Imprimerie Nationale on pages 146-147, DOI: 10.5281/zenodo.9896
Depth perception in computer graphics
Creators: name: Pfautz, Jonathan David
Publisher: name: Apollo - University of Cambridge Repository
Year: 2000

description: This thesis was digitised by the British Library from microfilm. You can acquire a single copy of this thesis for research purposes by clicking on the padlock icon on the thesis file. Please be aware that the text in the supplied thesis pdf file may not be as clear as text in a thesis that was born digital or digitised directly from paper due to the conversion in format. However, all of the theses in Apollo that were digitised from microfilm are readable and have been processed by optical character recognition (OCR) technology which means the reader can search and find text within the document. If you are the author of this thesis and would like to make your work openly available, please contact us: thesis@repository.cam.ac.uk
title: Laser cladding of copper-based alloys on steel
Creators: name: Biryukov, V.P.
name: Princ, A.N.
name: Savin, A.P.
name: Starostin, D.A.
name: Klevetov, D.V.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The paper considers the process of surfacing copper-based powder on 40Cr steel samples using continuous CO2 - laser radiation. It is shown that the friction coefficients are 0.014-0.021 when testing samples deposited with a scanning beam, which is two times lower than on samples of cast bronze. The influence of transverse beam oscillations on the quality and performance of the surfacing process is investigated. It is shown that at a scanning frequency of 224 Hz beam surfacing performance increases by 1.53 times.
title: Exploring How We Teach: Lived Experiences, Lessons, and Research about Graduate Instructors by Graduate Instructors
Creators: name: Tocco, Audrey
name: Narla, Avaneesh
name: Giardina, Elizabeth
name: Hughes, Erin
name: Ab Latif, Faqryza
name: Wooten, Heath J.
name: Fisk, J. Nick
name: Baker, Jennie
name: Simmons, Jonathan
name: Lue, Kristyn
name: Leaym-Fernandez, Melissa
name: Low, Natalie
name: Cheek, Ryan
name: Prado, Samantha
name: Silva-Enos, Sandra
name: Kelley, Shannon
name: Bluth, Stacy
name: Vilma, Taneisha
name: Hice-Fromille, Theresa
name: Lee, Alexandra
name: Athnos, April
name: Kou-Herrema, Tianyi
name: Hunt, Seth
name: Searle, Ellen
name: Oshima, Emile
name: Wilkins, Olivia
name: Marinho, Nathalie
name: Langley, Matthew
name: Rawal, Hima
name: Parker, Harrison
Publisher: name: Utah State University
Year: 2022

description: This book combines the knowledge of 30 graduate student instructors sharing about how they teach and how they’ve learned how to teach.
title: Stability analysis of a panel with an aircraft stringer using Siemens NX software
Creators: name: Evlampiev, A.V.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The results of the analysis of the deformation of the panel with the stringer at various distances between its profiles are presented. According to the simulation results using Siemens NX software, it was found that the smallest deformation is performed with the largest number of profile stringers and, accordingly, at the distance between the profiles.
title: The possibility of dynamic damping of oscillations in two coordinates of the object state
Creators: name: Eliseev, A.V.
name: Nikolaev, A.V.
name: Eliseev, S.V.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The methodological basis of structural mathematical modeling in the application to the problems of dynamics of technical objects, the design schemes of which can be presented in the form of mechanical oscillatory systems with concentrated parameters is developed. Features of dynamic properties of vibrational systems at simultaneous action of several functionally connected external harmonic excitations are considered. Specific dynamic modes, which are shown as dynamic damping of oscillations in two coordinates, are investigated. The technology of construction of mathematical models, definition of transfer functions of system, construction of the quadratic parametric equations used for a choice of adjustment of system in realization of the offered decision is offered. The study of the dynamic properties of the system is carried out on mechanical oscillatory systems of two types: the object makes plane oscillations and the system is represented in the form of a mechanical chain. The operator form of equations recording based on Laplace integral transformations is used. The results of the research are of interest to specialists in the field of vibration protection and vibration isolation of machines, devices and equipment when operating objects under intense vibration loads.
title: Algorithms for original division of the polygon in the area for the solution of the problem of constructing a simulative modeling system for collective behavior robots on the cluster
Creators: name: Vendin, A.S.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: This article reviews the algorithms for the initial distribution of agents among the computing nodes of a cluster. This work is part of the task of designing a system for simulating the collective behavior of robots on a cluster. Descriptions of the algorithm for splitting into equal areas, algorithms for splitting with remainder and without remainder are given with an estimate of the complexity of the algorithms.
title: Spectral analysis program amplitude-frequency characteristics of mobile REE
Creators: name: Zatylkin, A.V.
name: Golushko, D.A.
name: Medvedev, A.S.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The program is designed to process and visualize experimental data. The result of the program is the amplitude-frequency characteristic with automatically detected resonant bursts of the investigated sample of electronic equipment. The program is based on the method of processing experimental data by linear functions of variable length.
title: Automation of mechanical units modification in the CAD-system
Creators: name: Tsygankov, D.E.
name: Shaikheeva, G.R.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The authors proposed an approach to the automated modification of design solutions in the form of assembly 3D-model of mechanical units. The main difference of this approach is the fixation of the semantic correctness of the construction in the tasks of developing a new and reusing previously obtained design solutions.
title: The concept of automated database formation of means of technological equipment for parts manufactured by milling
Creators: name: Frolova, I.N.
name: Sarbaev, A.A.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The article describes the concept of automatic generation of a database of means of technological equipment. The work of modules for verifying parts using 2D contours and 3D models was analyzed.
On-chip low loss heralded source of pure single photons
Creators: name: Spring, Justin B.
name: Salter, Patrick S.
name: Metcalf, Benjamin J.
name: Humphreys, Peter C.
name: Moore, Merritt
name: Thomas-Peter, Nicholas
name: Barbieri, Marco
name: Jin, Xian-Min
name: Langford, Nathan K.
name: Kolthammer, W. Steven
name: Booth, Martin J.
name: Walmsley, Ian A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A key obstacle to the experimental realization of many photonic quantum-enhanced technologies is the lack of low-loss sources of single photons in pure quantum states. We demonstrate a promising solution: generation of heralded single photons in a silica photonic chip by spontaneous four-wave mixing. A heralding efficiency of 40%, corresponding to a preparation efficiency of 80% accounting for detector performance, is achieved due to efficient coupling of the low-loss source to optical fibers. A single photon purity of 0.86 is measured from the source number statistics without filtering, and confirmed by direct measurement of the joint spectral intensity. We calculate that similar high-heralded-purity output can be obtained from visible to telecom spectral regions using this approach. On-chip silica sources can have immediate application in a wide range of single-photon quantum optics applications which employ silica photonics.
description: 11 pages, 5 figures
Spin-spin correlations between two Kondo impurities coupled to an open Hubbard chain
Creators: name: Tiegel, A. C.
name: Dargel, P. E.
name: Hallberg, K. A.
name: Frahm, H.
name: Pruschke, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In order to study the interplay between Kondo and Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction, we calculate the spin-spin correlation functions between two Kondo impurities coupled to different sites of a half-filled open Hubbard chain. Using the density-matrix renormalization group (DMRG), we re-examine the exponents for the power-law decay of the correlation function between the two impurity spins as a function of the antiferromagnetic coupling J, the Hubbard interaction U, and the distance R between the impurities. The exponents for finite systems obtained in this work deviate from previously published DMRG calculations. We furthermore show that the long-distance behavior of the exponents is the same for impurities coupled to the bulk or to both ends of the chain. We note that a universal exponent for the asymptotic behavior cannot be extracted from these finite-size systems with open boundary conditions.
description: 8 pages, 10 figures; v2: final version, references and Fig. 8 added
Exciton dynamics in emergent Rydberg lattices
Creators: name: Bettelli, S.
name: Maxwell, D.
name: Fernholz, T.
name: Adams, C. S.
name: Lesanovsky, I.
name: Ates, C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The dynamics of excitons in a one-dimensional ensemble with partial spatial order are studied. During optical excitation, cold Rydberg atoms spontaneously organize into regular spatial arrangements due to their mutual interactions. This emergent lattice is used as the starting point to study resonant energy transfer triggered by driving a $nS$ to $n^\prime P$ transition using a microwave field. The dynamics are probed by detecting the survival probability of atoms in the $nS$ Rydberg state. Experimental data qualitatively agree with our theoretical predictions including the mapping onto XXZ spin model in the strong-driving limit. Our results suggest that emergent Rydberg lattices provide an ideal platform to study coherent energy transfer in structured media without the need for externally imposed potentials.
title: Evaluating the Utah Agriculture in the Classroom Preservice Teacher Seminar
Creators: name: Miller, Amelia J.
name: Konakis, Zak A.
name: Yoshikawa-Ruesch, Emily
name: Spielmaker, Debra M.
name: Stewardson, Denise
Publisher: name: Utah State University
Year: 2022

description: Utah Agriculture in the Classroom hosts preservice teacher seminars in partnership with five universities across the state. From 2017-2021, approximately 600 college students participated in these seminars. The preservice seminars provided agriculture-themed lessons aligned to state educational standards for future teachers to use as they build resources for their classrooms.
title: The Impact of Utah 4-H on Positive Youth Development
Creators: name: Narine, Lendel K.
name: Romney, Kelsey
name: Francis, David
name: Dart, Craig
Publisher: name: Utah State University
Year: 2022

description: 4-H is the largest youth development program in the United States. Utah 4-H conducts programs guided by the principles of positive youth development to help youth across the state lead a successful life. This article discusses the impact of Utah 4-H on the wellbeing of youth.
title: Developing and Piloting an Adventure-Oriented Confidence-Building Curriculum for Youth
Creators: name: Hansen, Catherine
name: Dabb, Melanie
name: Pay, Christina
name: Jenkins, Cindy
name: Timothy, Eva
name: Schmutz, Andrea
name: Schainker, Lisa
Publisher: name: Utah State University
Year: 2022

description: Youth are bombarded with a myriad of life stressors that impacts their self-esteem and ability to be resilient. Young people from diverse backgrounds across the state of Utah participated in a three-day camp structured around a newly developed confidence-building curriculum. Practical application and high-adventure activities reinforced the concepts taught in the curriculum.
title: Technological inheritance in the process of selective laser melting
Creators: name: Goncharov, E.S.
name: Balyakin, A.V.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The process of hydro-abrasive processing of VT6 titanium samples, the effect on the processing process of various concentrations of abrasive and processing time are considered.
title: Demonstration Farm Provides Educational Opportunity for IPM
Creators: name: Volesky, Nick
name: Murray, Mair
Publisher: name: Utah State University
Year: 2022

description: The mission of USU Extension’s Integrated Pest Management (IPM) program is to increase the use of sustainable pest management practices within urban and rural landscapes to provide economic, human, and environmental health in Utah. In the spring of 2022, the IPM program established a vegetable farm to test and demonstrate IPM practices. The farm served as an experiential learning classroom for almost 50 farmers and home gardeners.
title: The direction of the development process abrasive machining to ensure the quality of the surface layer
Creators: name: Bogutskiy, V.B.
name: Shron, L.B.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The state of the surface layer of the part during grinding is determined by the temperature that occurs in the cutting zone. The result of increased heating and cooling rates is that the secondary quenching structure appears at lower temperatures. Reducing the temperature and depth of heating of the surface layer at a constant contact area of the circle with the part leads to an increase in the intensity of the heat flow. The analysis carried out in the work allows us to offer the main directions of development of abrasive processing taking into account thermophysical processes, guaranteeing the quality of the surface layer at the maximum productivity of the process.
Contrasting behaviour from two Be/X-ray binary pulsars: insights into differing neutron star accretion modes
Creators: name: Townsend, L. J.
name: Drave, S. P.
name: Hill, A. B.
name: Coe, M. J.
name: Corbet, R. H. D.
name: Bird, A. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this paper we present the identification of two periodic X-ray signals coming from the direction of the Small Magellanic Cloud (SMC). On detection with the Rossi X-ray Timing Explorer (RXTE), the 175.4s and 85.4s pulsations were considered to originate from new Be/X-ray binary (BeXRB) pulsars with unknown locations. Using rapid follow-up INTEGRAL and XMM-Newton observations, we show the first pulsar (designated SXP175) to be coincident with a candidate high-mass X-ray binary (HMXB) in the northern bar region of the SMC undergoing a small Type II outburst. The orbital period (87d) and spectral class (B0-B0.5IIIe) of this system are determined and presented here for the first time. The second pulsar is shown not to be new at all, but is consistent with being SXP91.1 - a pulsar discovered at the very beginning of the 13 year long RXTE key monitoring programme of the SMC. Whilst it is theoretically possible for accreting neutron stars to change spin period so dramatically over such a short time, the X-ray and optical data available for this source suggest this spin-up is continuous during long phases of X-ray quiescence, where accretion driven spin-up of the neutron star should be minimal.
description: 13 pages, 16 figures, accepted for publication in MNRAS
title: Outcomes of the Thriving Hives Beginning Beekeeping Extension Education
Creators: name: Walker Bravo, Andree'
Publisher: name: Utah State University
Year: 2022

description: The Thriving Hives Beginning Beekeeping Education program caters to novice beekeepers to promote best practices, confidence in beekeeping skills, and healthy apiaries around the state. A major objective of the program is to educate participants on the management of Varroa mites in their hives.
Integration of Wireless Sensor Networks with Virtual Instrumentation in a Residential Environment
Creators: name: Stamatescu, Grigore
name: Sgârciu, Valentin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences
subject: C.3

description: This paper presents an approach to integrate wireless sensor networks (WSN) with the LabVIEW graphical development environment through a dedicated software driver. As personal constribution, a system architecture and concept implementation are described, in the context of a smart house monitoring scenario. Data acquisition is performed via the deployed wireless sensor network with focus on three main parameters: temperature, humidity and light. The data logging, monitoring and control functions are realized through a virtual instrumentation project. This also enables an easy-to-use user interface and the accesibility of data through standards-based web server technologies. The potential of remote monitoring and control through mobile terminals is opened up.
description: 12 pages, 7 figures
Realizing Quantitative Quasiparticle Modeling of Skyrmion Dynamics in Arbitrary Potentials
Creators: name: Brems, Maarten A.
name: Sparmann, Tobias
name: Fröhlich, Simon M.
name: Dany, Leonie-C.
name: Rothörl, Jan
name: Kammerbauer, Fabian
name: Jefremovas, Elizabeth M.
name: Farago, Oded
name: Kläui, Mathias
name: Virnau, Peter
Publisher: name: arXiv
Year: 2025
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate fully quantitative Thiele model simulations of magnetic skyrmion dynamics on previously unattainable experimentally relevant large length and time scales by ascertaining the key missing parameters needed to calibrate the experimental and simulation time scales and current-induced forces. Our work allows us to determine complete spatial pinning energy landscapes that enable quantification of experimental studies of diffusion in arbitrary potentials within the Lifson-Jackson framework. Our method enables us to ascertain the time scales, and by isolating the effect of ultra-low current density (order $10^6 A/m^2$) generated torques we directly infer the total force acting on the skyrmion for a quantitative modelling.
Comment on 'Diamagnetism and Cooper pairing above Tc in cuprates'
Creators: name: Rey, R. I.
name: Ramos-Álvarez, A.
name: Mosqueira, J.
name: Ramallo, M. V.
name: Vidal, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: It is shown that the magnetization rounding measured by L. Li and coworkers above the superconducting transition in optimally doped YBa2Cu3O7-d crystals under magnetic fields up to 14 T [Phys. Rev. B 81, 054510 (2010), arXiv:0906.1823] may be explained at a phenomenological level in terms of the mean field Gaussian-Ginzburg-Landau (GGL) approach for layered superconductors. This result challenges the claims of L. Li and coworkers, who write '[...] we are observing the phase-disordering mechanism, rather than Gaussian mean-field fluctuations', but it is in full agreement with earlier magnetization measurements by different authors in optimally-doped YBa2Cu3O7-d under lower magnetic fields. The adequacy of the mean-field Ginzburg-Landau descriptions is further confirmed when analyzing in terms of the GL scaling in the lowest-Landau-level (GL-LLL) approximation the magnetization data reported below Tc by L. Li and coworkers.
description: Final version, 5 pages including 2 figures
Meranoplus Smith 1853
Creators: name: Forel, A.
Publisher: name: L'Imprimerie Nationale
Year: 1891
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Meranoplus

description: Genre MERANOPLUS.
Meranoplus, Smith, Transactions of the Entomological Society of London (1853).
[[worker]]. Arêtes frontales droites, situées au bord de la tête, dont elles atteignent à peu près les angles postérieurs. Yeux situés sous la fossette antennaire qui forme sous les arêtes frontales une longue rainure logeant les scapes. Antennes de neuf articles. Mandibules triangulaires, à bord terminal denté. Corps court et large, disposé de façon à pouvoir être replié plus ou moins en boule. Mésonotum soudé au pronotum et séparé le plus souvent du métanotum par un rebord fréquemment lamelleux ou épineux. Le disque pro-mésonotal est bordé latéralement d'une façon analogue. L'angle qui réunit les rebords latéraux au rebord postérieur est souvent épineux. Métanotum de forme ordinaire, épineux. Le premier segment abdominal ne recouvre pas entièrement l'abdomen; il est moins bordé que chez les Cataulacus.
[[queen]]. Comme la [[worker]]. Mais les caractères du mésonotum complètement modifies dans le sens du mésonotum des [[queen]] (ni rebords, ni épines). Le mé- sonotum et le scutellum sont fort élevés, arrondis. Une cellule cubitale aux ailes. La base du deuxième article du funicule a une tendance à se séparer pour former un tout petit (dixième) article supplémentaire (chez le M. bicolor). Ailes avec une cellule cubitale et une cellule discoïdale. La nervure transverse s'unit au rameau cubital externe. Cellule radiale fermée.
description: Published as part of Forel, A., 1891, Histoire naturelle des Hymenopteres. Deuxieme partie: Les Formicides., pp. 1-231 in Histoire Physique, Naturelle et Politique de Madagascar., Paris :L'Imprimerie Nationale on pages 147-148, DOI: 10.5281/zenodo.9896
Instabilities at planetary gap edges in 3D self-gravitating disks
Creators: name: Lin, Min-Kai
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Numerical simulations are presented to study the stability of gaps opened by giant planets in 3D self-gravitating disks. In weakly self-gravitating disks, a few vortices develop at the gap edge and merge on orbital time-scales. The result is one large but weak vortex with Rossby number -0.01. In moderately self-gravitating disks, more vortices develop and their merging is resisted on dynamical time-scales. Self-gravity can sustain multi-vortex configurations, with Rossby number -0.2 to -0.1, over a time-scale of order 100 orbits. Self-gravity also enhances the vortex vertical density stratification, even in disks with initial Toomre parameter of order 10. However, vortex formation is suppressed in strongly self-gravitating disks and replaced by a global spiral instability associated with the gap edge which develops during gap formation.
description: Proceeding for `Instabilities and Structures in Proto-Planetary Disks' workshop. Includes additional results analysis of Lin (2012, arXiv:1205.4034) and an additional simulation. Talk pdf available at http://cita.utoronto.ca/~mklin924/talks.html
Two equivalent Stefan's problems for the Time Fractional Diffusion Equation
Creators: name: Roscani, Sabrina
name: Marcus, Eduardo A. Santillan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: Primary 26A33: Secondary 33E12, 35R11, 35R35, 80A22

description: Two Stefan's problems for the diffusion fractional equation are solved, where the fractional derivative of order $ \al \in (0,1) $ is taken in the Caputo's sense. The first one has a constant condition on $ x = 0 $ and the second presents a flux condition $ T_x (0, t) = \frac {q} {t ^ {\al/2}} $. An equivalence between these problems is proved and the convergence to the classical solutions is analysed when $ \al \nearrow $ 1 recovering the heat equation with its respective Stefan's condition.
Addressing the palliative and end of life care research priorities: an updated grant mapping analysis
Creators: name: Crooks, Jodie
name: Carduff, Emma
name: Hudson, Briony
name: Rizk, Noura
name: Maitland, Kate
name: Sagar, Devi
name: Best, Sabine
Publisher: name: F1000 Research Limited
Year: 2023

description: In 2015, a Palliative and end of life care Priority Setting Partnership (PeolcPSP) with the James Lind Alliance (JLA) sought to identify unanswered research questions that are most important to those whom palliative and end of life care research is intended to benefit – patients, carers and health and social care professionals (JLA, 2015).

 This report highlights progress made and challenges remaining in addressing the research priorities of patients, carers and health and social care professionals identified via the Palliative and end of life care Priority Setting Partnership (PeolcPSP) with the James Lind Alliance (JLA) reported in 2015. It provides an overview of awarded research grants starting between January 2015 and October 2022, by mapping research grant data against the top 11 priorities identified in the PeolcPSP.
Cool for Cats
Creators: name: Everitt, M. J.
name: Spiller, T. P.
name: Milburn, G. J.
name: Wilson, R. D.
name: Zagoskin, A. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The iconic Schrödinger's cat state describes a system that may be in a superposition of two macroscopically distinct states, for example two clearly separated oscillator coherent states. Quite apart from their role in understanding the quantum classical boundary, such states have been suggested as offering a quantum advantage for quantum metrology, quantum communication and quantum computation. As is well known these applications have to face the difficulty that the irreversible interaction with an environment causes the superposition to rapidly evolve to a mixture of the component states in the case that the environment is not monitored. Here we show that by engineering the interaction with the environment there exists a large class of systems that can evolve irreversibly to a cat state. To be precise we show that it is possible to engineer an irreversible process so that the steady state is close to a pure Schrödinger's cat state by using double well systems and an environment comprising two-photon (or phonon) absorbers. We also show that it should be possible to prolong the lifetime of a Schrödinger's cat state exposed to the destructive effects of a conventional single-photon decohering environment. Our protocol should make it easier to prepare and maintain Schrödinger cat states which would be useful in applications of quantum metrology and information processing as well as being of interest to those probing the quantum to classical transition.
description: 10 pages, 7 figures. Significantly updated version with supplementary information
Lapiak Sudah Pandan Icak-Icak Dicari
Creators: name: B. Bahren
Publisher: name: Zenodo
Year: 2021
Subjects: Minangkabau
Matrilineal
Local Wisdom
Etnografi
Heritage

description: Artikel-artikel yang ditampilkan pada laman ini, merupakan artikel berbahasa Minangkabau saya yang sudah saya tulis dalam rentang awal 2019 hingga medio 2021. Tulisan-tulisan tersebut memuat berbagai persoalan dan permasalahan seputar adat, agama, social politik dan kejadian-kejadian serta peristiwa actual yang terjadi saat artikel itu ditulis. Selain itu, penulisan artikel-artike dan cerita dalam bahasa Minangkabau bertujuan sebagai upaya nyata yang dapat dilakukan dalam rangka pemertahanan bahasa daerah (minangkabau) dari ancaman kepunahan. Artikel dan certia tersebut pada umumnya terbit di Koran harian Khazanah, minangsatu.com dan khazminang.id. inilah beberapa media cetak dan online di Sumatera Barat yang masih menyediakan kolom berbahasa minang dalam berita-beritanya.
description: Cerita Berbahasa Minangkabau
Mumbang Jatuah Kalapo Jatuah
Creators: name: B. Bahren
Publisher: name: Zenodo
Year: 2021
Subjects: Minangkabau
Matrilineal
Local Wisdom
Etnografi
Heritage

description: Artikel-artikel yang ditampilkan pada laman ini, merupakan artikel berbahasa Minangkabau saya yang sudah saya tulis dalam rentang awal 2019 hingga medio 2021. Tulisan-tulisan tersebut memuat berbagai persoalan dan permasalahan seputar adat, agama, social politik dan kejadian-kejadian serta peristiwa actual yang terjadi saat artikel itu ditulis. Selain itu, penulisan artikel-artike dan cerita dalam bahasa Minangkabau bertujuan sebagai upaya nyata yang dapat dilakukan dalam rangka pemertahanan bahasa daerah (minangkabau) dari ancaman kepunahan. Artikel dan certia tersebut pada umumnya terbit di Koran harian Khazanah, minangsatu.com dan khazminang.id. inilah beberapa media cetak dan online di Sumatera Barat yang masih menyediakan kolom berbahasa minang dalam berita-beritanya.
description: Cerita Berbahasa Minangkabau