cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Vibration and Damping of Thin-Walled Cylinders
Creators: name: Watts, George Arthur
Publisher: name: California Institute of Technology
Year: 1962
Subjects: Aeronautics
Aeronautical engineering

description: The frequencies of normal modes of free vibration of three cylinders of different thickness were found experimentally. For some of the modes damping was also found. The modes excited were of a single axial half wave and multiple circumferential waves.

The shells were geometrically similar except for thickness and were made by electroplating copper on accurately machined wax mandrels. Melting the wax produced shells of very uniform thickness without seams.

The modes and frequencies agreed to within 10% of the theoretical values for cylinders with fixed ends, except at small numbers of waves where they agreed more closely with the theoretical values for freely supported ends. The damping factors tended toward a small constant value with increasing numbers of waves above the mode with fundamental frequency, but increased rapidly as the numbers of waves decreased below the fundamental.
Decay heat experiments in Sweden: Presentation at SFCOMPO TRG meeting 2021-07-07
Creators: name: Jansson, Peter
Publisher: name: Zenodo
Year: 2021

description: Presentation of experiments involving decay heat of spent nuclear fuel assemblies in Sweden given at meeting of the Technical Review Group for the International Assay Data of Spent Nuclear Fuel Database (SFCOMPO TRG) on July 7, 2021.
The chemistry of rhodium and molybdenum isocyanide complexes
Creators: name: Lewis, Nathan Saul
Publisher: name: California Institute of Technology
Year: 1977
Subjects: Chemistry

description: NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document.

The rhodium isocyanide dimer, [...], has been synthesized and characterized. Like monomeric rhodium isocyanide complexes, the dimer has a tendency to associate in solution and reversibly form oligomers. These oligomers have been detected spectroscopically, and concentration dependences verify their formulation as high aggregates.  The dimer also undergoes two-center, two-electron oxidative addition with a variety of reagents, including the halogens, methyl iodide, ethyl iodide, and methyl tosylate.  These oxidative adducts have been characterized and studied through a variety of techniques.  The dimer, unlike rhodium isocyanide monomers, acts as a base and binds one proton in aqueous solution.  Titration data are presented, and an approximate [...] has been obtained.  When treated with aqueous acid, visable light (546 nm) photolysis of solutions of [...] yields molecular hydrogen with quantum yields as high as 0.04.  The photochemistry is oxygen sensitive, as well as anion dependent.  Possible means of exploiting the photoreaction in a solar energy storage scheme is also discussed.  In order to better understand the metal-metal interactions in the dimeric species, extended-Huckel molecular orbital calculations were performed on the rhodium dimer, as well as on monomeric fragments with the four isoelectronic metals Ru(O), Pd(II), Co(I), and Ir(I). These results, and their relationship to observed physical properties of the rhodium dimer are discussed in detail.
Universal inhomogeneous magnetic-field response in the normal state of cuprate high-Tc superconductors
Creators: name: Mahyari, Z. Lotfi
name: Cannell, A.
name: de Mello, E. V. L.
name: Ishikado, M.
name: Eisaki, H.
name: Liang, Ruixing
name: Bonn, D. A.
name: Sonier, J. E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report the results of a muon spin rotation (muSR) study of the bulk of Bi{2+x}Sr{2-x}CaCu2O{8+δ}, as well as pure and Ca-doped YBa2Cu3Oy, which together with prior measurements reveal a universal inhomogeneous magnetic-field response of hole-doped cuprates extending to temperatures far above the critical temperature (Tc). The primary features of our data are incompatible with the spatially inhomogeneous response being dominated by known charge density wave (CDW) and spin density wave (SDW) orders. Instead the normal-state inhomogeneous line broadening is found to scale with the maximum value Tc^max for each cuprate family, indicating it is controlled by the same energy scale as Tc. Since the degree of chemical disorder varies widely among the cuprates we have measured, the observed scaling constitutes evidence for an intrinsic electronic tendency toward inhomogeneity above Tc.
description: 8 pages, 8 figures
Phoca hispida Schreber 1775
Creators: name: W. Christopher Wozencraft
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora
Phocidae
Phoca
Phoca hispida

description: Phoca hispida Schreber, 1775. Die Säugethiere, 2(13):pl. 86 (1775]; text, 3(17):312[1776]. TYPE LOCALITY: "Man fängt ihn auf den Küsten von Grönland und Labrader". DISTRIBUTION: Arctic Ocean, Okhotsk, Bering, and Baltic Seas; Finland (Saimaa Lake); Russia (Ladoga Lake); Canda (Nettilling Lake, Baffin Isl). STATUS: IUCN - Endangered as P. h. saimensis. SYNONYMS: annellata Nilsson, 1820; beaufortiana Anderson, 1943; birulai Smirnov, 1929; botnica Gmelin, 1788; foetida Fabricius, 1776; gichigensis Allen, 1902; krascheninikovi Naumov and Smirnov, 1936; ladogensis Nordquist, 1899; octonata Kutorga, 1839; pomororum Smirnov, 1929; pygmaea Zukowsky, 1914; saimensis Nordquist, 1899; soperi Anderson, 1943. COMMENTS: Placed in Pusa Scopoli, 1777, followed by Scheffer (1958). Mohr (1952) described successful mating in captivity between Phoca hispida and Halichoerus grypus.
description: Published as part of W. Christopher Wozencraft, 1993, Order Carnivora, pp. 279-348 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 332, DOI: 10.5281/zenodo.7359191
description: {"references": ["Anderson, R. M., and A. L. Rand. 1943. Variation in the porcupine (Genus Erethizon) in Canada. Canadian Journal of Research, section D, 21: 292 - 309.", "Allen, J. A. 1902. Mammal names proposed by Oken in his \" Lehrbuch der Zoologie \". Bulletin of the American Museum of Natural History, 16: 373 - 379.", "Scopoli, G. A. 1777. Introductio ad historiam naturalem, sistens genera lapidum, plantarum et animalium, Pragae, 506 pp.", "Scheffer, V. B. 1958. Seals, sea lions, and walruses, a review of the Pinnipedia. Stanford University Press, Stanford, CA, 179 pp.", "Mohr, E. 1952. Beitrage zur Kenntnis der Mahnenrobben. Zoologische Garten, 19: 98 - 112."]}
Sirdavidia Couvreur & Sauquet, PhytoKeys 46: 4 2015
Creators: name: Couvreur, Thomas L. P.
name: Dagallier, Leo-Paul M. J.
name: Crozier, Francoise
name: Ghogue, Jean-Paul
name: Hoekstra, Paul H.
name: Kamdem, Narcisse G.
name: Johnson, David M.
name: Murray, Nancy A.
name: Sonke, Bonaventure
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Magnoliales
Annonaceae
Sirdavidia

description: Sirdavidia Couvreur & Sauquet, PhytoKeys 46: 4, 2015. Type species. Sirdavidia solannona Couvreur & Sauquet. Description. Same as species. Taxonomy. Couvreur et al. (2015).
description: Published as part of Couvreur, Thomas L. P., Dagallier, Leo-Paul M. J., Crozier, Francoise, Ghogue, Jean-Paul, Hoekstra, Paul H., Kamdem, Narcisse G., Johnson, David M., Murray, Nancy A. & Sonke, Bonaventure, 2022, Flora of Cameroon - Annonaceae Vol 45, pp. 1-532 in PhytoKeys 207 on page 317, DOI: 10.3897/phytokeys.207.61432
description: {"references": ["Couvreur, TLP, Sonke, B, Niangadouma, R, Sauquet, H, 2015. Sirdavidia, an extraordinary new genus of Annonaceae from Gabon. PhytoKeys 46: 1 - 19, DOI: https://doi.org/10.3897/phytokeys.46.8937"]}
Near minimum energy trajectories in the two fixed force-center problem
Creators: name: Philippou, Demetrius
Publisher: name: California Institute of Technology
Year: 1964
Subjects: Aeronautics

description: The class of symmetric orbits with near minimum energy which originate very close to the earth and pass very close to a fixed moon of small mass are studied using asymptotic methods. An exact solution for the orbit is found using Bonnet's Theorem. This is an ellipse with the force centers as foci. Results obtained from the approximate solution are seen to agree exactly with the predictions of Bonnet's Theorem. The solutions thus obtained are the periodic solutions. A one dimensional study is undertaken as a guide to the planar problem.
Unsharp Localization and Causality in Relativistic Quantum Theory
Creators: name: Busch, Paul
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81P15, 81T05

description: The conflict between relativistic causality and localizability is analyzed in the light of the existence of unsharp localization observables. A theorem due to S. Schlieder is generalized, showing that the assumption of local commutativity implies the localization observable in question to be unsharp in a strong sense. Furthermore, a recent generalization of a theorem of Lüders is applied to demonstrate that local commutativity is a necessary consequence of Einstein causality even in the case of unsharp observables if they admit local measurements. These findings raise the question whether localization observables can be measured by means of local operations.
Artin's Primitive Root Conjecture -- A Survey --
Creators: name: Moore, Pieter
Publisher: name: Zenodo
Year: 2012

description: One of the first concepts one meets in elementary number theory is that of the multiplicative order. We give a survey of the literature on this topic emphasizing the Artin primitive root conjecture (1927). The first part of the survey is intended for a rather general audience and rather colloquial, whereas the second part is intended for number theorists and ends with several open problems. The contributions in the survey on 'elliptic Artin' are due to Alina Cojocaru. Wojciec Gajda wrote a section on 'Artin for K-theory of number fields,' and Hester Graves (together with me) on 'Artin's conjecture and Euclidean domains.'
Topological interface physics of defects and textures in spinor Bose-Einstein condensates
Creators: name: Borgh, Magnus O.
name: Ruostekoski, Janne
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We provide a detailed description of our previously proposed scheme for topological interface engineering with constructed defects and textures perforating across coherent interfaces between different broken symmetries [M. O. Borgh and J. Ruostekoski, Phys. Rev. Lett. 109, 015302 (2012)]. We consider a spin-1 Bose-Einstein condensate, in which polar and ferromagnetic phases are prepared in spatially separated regions. We show that a stable coherent interface is established between the two phases, allowing defects of different topology to connect continuously across the boundary. We provide analytic constructions of interface-crossing defect solutions that could be experimentally phase-imprinted using existing technology. By numerically minimizing the energy, we calculate the core structures of interface-crossing defect configurations. We demonstrate nontrivial core deformations to considerably more complex structures, such as the formation of an arch-shaped half-quantum line defect, an Alice arch, at the interface, with the topological charge of a point defect, whose emergence may be understood by the "hairy ball" theorem. Another example of an energetically stable object is the connection of a coreless vortex to a pair of half-quantum vortices. We show that rotation leads to spontaneous nucleation of defects in which a coreless vortex continuously transforms to a half-quantum vortex across the interface.
description: Follow-up article to M.O. Borgh and J. Ruostekoski, Phys. Rev. Lett. 109, 015302 (2012); 16 pages, 11 figures
Phoca largha Pallas 1811
Creators: name: W. Christopher Wozencraft
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora
Phocidae
Phoca
Phoca largha

description: Phoca largha Pallas, 1811. Zoogr. Rosso-Asiat., 1:113. TYPE LOCALITY: "quam quod observetur tantum ad orientale littus Camtschatcae", Shaughnessy and Fay (1977) listed as "Eastern coast of Kamchatka " [Russia]. DISTRIBUTION: Associated with pack ice in coastal N Pacific, Bering and Okhotsk Seas, Aleutian Isis; south to Kiangsu (China) and Japan. SYNONYMS: chorisi Lesson, 1828; macrodens Allen, 1902; nummularis Temminck, 1847; ochotensis Allen, 1902; petersi Mohr, 1941; pribilofensis Allen, 1902; tigrina Lesson, 1827. COMMENTS: Scheffer (1958) considered largha as conspecific with vitulina; however, Shaughnessy and Fay (1977) and J. E. King (1983) separated the two.
description: Published as part of W. Christopher Wozencraft, 1993, Order Carnivora, pp. 279-348 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 332, DOI: 10.5281/zenodo.7359191
description: {"references": ["Shaughnessy, P. D., and F. H. Fay. 1977. A review of the taxonomy and nomenclature of north Pacific harbour seals. Journal of Zoology, London, 182: 385 - 419.", "Allen, J. A. 1902. Mammal names proposed by Oken in his \" Lehrbuch der Zoologie \". Bulletin of the American Museum of Natural History, 16: 373 - 379.", "Temminck, C. J. 1847. Coup-d'oeil general sur les possessions neerlandaises dans l'Inde archipelagique. Vol. 2. A. Arnz and Company, Leiden, 471 pp.", "Scheffer, V. B. 1958. Seals, sea lions, and walruses, a review of the Pinnipedia. Stanford University Press, Stanford, CA, 179 pp."]}
Activation energies of global reactions in laminar flame propagation
Creators: name: Ritter, Darrell L.
Publisher: name: California Institute of Technology
Year: 1953
Subjects: Aeronautics

description: A survey of experimentally determined values for the laminar burning velocity of premixed, laminar hydrocarbon-air and hydrogen-oxygen-nitrogen flames shows considerable scatter between results obtained by different investigators. Within the limits of experimental reproducibility of burning velocities, it is possible to correlate measured burning velocities on the assumption that a single rate-controlling or global reaction exists. Correlation of experimental data by use of a global reaction has been made on the basis of two simplified relations for the laminar burning velocity.

The first relation was obtained by the use of an intuitive argument based on the idea that the laminar burning velocity is proportional to the square root of a second order reaction rate, with the rate-controlling reaction step depending on the first power of the initial fuel and oxygen concentrations. For lean mixtures the global activation energy was found to have a value of about 22 Kcals/mole, and for rich mixtures it has a value of roughly 56 Kcals/mole.

The second expression for the calculation of laminar burning velocity is based on a theoretical equation derived by Semenov for a thermal mechanism controlling flame propagation in rich hydrocarbon-air mixtures. Application of this relation leads to the conclusion that a global reaction with an activation energy of 87 Kcals/mole correlates rich hydrocarbon-air burning velocities, well within the limits of reproducibility of experimental data.

A study of the effect of the concentration of N[subscript 2] in the oxidizing mixture shows an apparent dependence of the global activation energy on the amount of diluent gas. This observation suggests that although good correlation of experimental data has been obtained, by using the concept of a global activation energy, the results are not of fundamental significance but should be regarded simply as useful empirical methods for correlating experimental data. It is possible that additional theoretical work will lead to a modified expression for the laminar burning velocity, which not only permits correlation of experimental data, but also yields a global activation energy which is independent of the concentration of inert diluents.
Phoca sibirica Gmelin 1788
Creators: name: W. Christopher Wozencraft
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora
Phocidae
Phoca
Phoca sibirica

description: Phoca sibirica Gmelin, 1788. In Linnaeus, Syst. Nat., 13th ed., 1:64. TYPE LOCALITY: "Baikal et Orom" [Lake Baikal and Lake Oron (=Ozero Oron), U.S. S. R.]. DISTRIBUTION: Endemic to Lake Baikal (Russia). SYNONYMS: baicalensis Dybowski, 1873; oronensis Dybowski, 1922. COMMENTS: Placed in Pusa Scopoli, 1777, followed by Scheffer (1958). Reviewed by Thomas et al. (1982, Mammalian Species, 188).
description: Published as part of W. Christopher Wozencraft, 1993, Order Carnivora, pp. 279-348 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 332, DOI: 10.5281/zenodo.7359191
description: {"references": ["Scopoli, G. A. 1777. Introductio ad historiam naturalem, sistens genera lapidum, plantarum et animalium, Pragae, 506 pp.", "Scheffer, V. B. 1958. Seals, sea lions, and walruses, a review of the Pinnipedia. Stanford University Press, Stanford, CA, 179 pp.", "Thomas, J., V. Pastukhov, R. Elsner, and E. Petrov. 1982. Phoca sibirica. Mammalian Species, 188: 1 - 6."]}
Mapeamento participativo aplicado ao planejamento urbano
Creators: name: Carolina Carvalho
Publisher: name: IVIDES.org, Rio de Janeiro.
Year: 2025

description: Palestra ministrada no Workshop Mapeamento Participativo e Cartografia Social 2022, em 7 de dezembro de 2022. Este é um evento organizado pelo Instituto Virtual para o Desenvolvimento Sustentável - IVIDES.org, com parceria do Laboratório de Cartografia - GeoCart-UFRJ.

Vídeo no canal do IVIDES.org no YouTube: https://youtu.be/SkyT8tQRvc8

Este material está sob a licença Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0). Você pode adaptar esta apresentação e disseminá-la, desde que mencione a autoria, mas não pode usar com fins comerciais.
Typical and large-deviation properties of minimum-energy paths on disordered hierarchical lattices
Creators: name: Melchert, O.
name: Hartmann, A. K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We perform numerical simulations to study the optimal path problem on disordered hierarchical graphs with effective dimension d=2.32. Therein, edge energies are drawn from a disorder distribution that allows for positive and negative energies. This induces a behavior which is fundamentally different from the case where all energies are positive, only. Upon changing the subtleties of the distribution, the scaling of the minimum energy path length exhibits a transition from self-affine to self-similar. We analyze the precise scaling of the path length and the associated ground-state energy fluctuations in the vincinity of the disorder critical point, using a decimation procedure for huge graphs. Further, using an importance sampling procedure in the disorder we compute the negative-energy tails of the ground-state energy distribution up to 12 standard deviations away from its mean. We find that the asymptotic behavior of the negative-energy tail is in agreement with a Tracy-Widom distribution. Further, the characteristic scaling of the tail can be related to the ground-state energy flucutations, similar as for the directed polymer in a random medium.
description: 10 pages, 10 figures, 3 tables
Cache-Enabled Opportunistic Cooperative MIMO for Video Streaming in Wireless Systems
Creators: name: Liu, An
name: Lau, Vincent
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: We propose a cache-enabled opportunistic cooperative MIMO (CoMP) framework for wireless video streaming. By caching a portion of the video files at the relays (RS) using a novel MDS-coded random cache scheme, the base station (BS) and RSs opportunistically employ CoMP to achieve spatial multiplexing gain without expensive payload backhaul. We study a two timescale joint optimization of power and cache control to support real-time video streaming. The cache control is to create more CoMP opportunities and is adaptive to the long-term popularity of the video files. The power control is to guarantee the QoS requirements and is adaptive to the channel state information (CSI), the cache state at the RS and the queue state information (QSI) at the users. The joint problem is decomposed into an inner power control problem and an outer cache control problem. We first derive a closed-form power control policy from an approximated Bellman equation. Based on this, we transform the outer problem into a convex stochastic optimization problem and propose a stochastic subgradient algorithm to solve it. Finally, the proposed solution is shown to be asymptotically optimal for high SNR and small timeslot duration. Its superior performance over various baselines is verified by simulations.
description: 14 pages, accepted by IEEE Transactions on Signal Processing
Geology of the Cactus Mines, Rosamond, Kern Co., California
Creators: name: Jordan, John Thomas
Publisher: name: California Institute of Technology
Year: 1941
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: The Cactus ore deposits are located in the western end of Middle Butte hill, about ten miles southwest of the town of Mojave. The hill extends over parts of sections 8, 9, 16, and 17; T 10 N, R 13 W, S.B.B.L. and M. This area is in the northeastern part of Antelope Valley, the westernmost extension of Mojave Desert physiographic province.

The Cactus Mines consist of three orebodies, the Cactus and the Silver Prince, both located on the same structure, and the Winkler orebody, lying roughly 1500 feet east of the Cactus in rhyolite. These deposits mark the present western limit of the Mojave Mining District which has supported considerable mining activity, at various periods, during the past fifty years.

The mines of the district are mostly of the gold-silver sulfide, epithermal type. The total production of all the mines in the district is probably near $20,000,000. Larger producers include the Exposed Treasure, Yellow Dog, Standard, and the Pride of Mojave on Standard Hill; the Queen Esther, Golden Queen, and Lodestar mines on Soledad Hill; the Tropico mine on the south side of the Rosamond Hills; and the Cactus mines in the Middle Butte.

This district, and the Randsburg area to the northeast, account for the greater part of the gold and silver production from Southern California.

The purpose of this investigation was to study and record the geology of the Cactus Mine ore deposit and, if possible, those factors which influenced or controlled the localization of ore.

This report and accompanying maps are presented as a thesis in partial fulfillment of the requirements for the Master of Science degree in geology at the California Institute of Technology; Pasadena, California.
Retardation effects and the Coulomb pseudopotential in the theory of superconductivity
Creators: name: Bauer, Johannes
name: Han, Jong E.
name: Gunnarsson, Olle
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In the theory of electron-phonon superconductivity both the magnitude of the electron-phonon coupling $λ$ as well as the Coulomb pseudopotential $μ^*$ are important to determine the transition temperature $T_c$ and other properties. We calculate corrections to the conventional result for the Coulomb pseudopotential. Our calculation are based on the Hubbard-Holstein model, where electron-electron and electron-phonon interactions are local. We develop a perturbation expansion, which accounts for the important renormalization effects for the electrons, the phonons, and the electron-phonon vertex. We show that retardation effects are still operative for higher order corrections, but less efficient due to a reduction of the effective bandwidth. This can lead to larger values of the pseudopotential and reduced values of $T_c$. The conclusions from the perturbative calculations are corroborated up to intermediate couplings by comparison with non-perturbative dynamical mean-field results.
description: 24 pages, 19 figures
Rational functions with maximal radius of absolute monotonicity
Creators: name: Loczi, Lajos
name: Ketcheson, David I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65L06

description: We study the radius of absolute monotonicity R of rational functions with numerator and denominator of degree s that approximate the exponential function to order p. Such functions arise in the application of implicit s-stage, order p Runge-Kutta methods for initial value problems and the radius of absolute monotonicity governs the numerical preservation of properties like positivity and maximum-norm contractivity. We construct a function with p=2 and R>2s, disproving a conjecture of van de Griend and Kraaijevanger. We determine the maximum attainable radius for functions in several one-parameter families of rational functions. Moreover, we prove earlier conjectured optimal radii in some families with 2 or 3 parameters via uniqueness arguments for systems of polynomial inequalities. Our results also prove the optimality of some strong stability preserving implicit and singly diagonally implicit Runge-Kutta methods. Whereas previous results in this area were primarily numerical, we give all constants as exact algebraic numbers.
An application of the method of characteristics to axially symmetric supersonic flow
Creators: name: Griffing, Charles W.
name: Wilburn, William Clarence
name: Purdon, David
name: McLaughlin, Earl Wilson
Publisher: name: California Institute of Technology
Year: 1947
Subjects: Aeronautical Engineering
Aeronautics

description: The method of characteristics for three dimensional axially symmetric bodies was used to determine the velocity distribution about the nose of the Corporal E rocket, a rocket projectile, for Mach numbers 2 and 4. From the velocities the pressure distribution was determined and a drag coefficient computed.

For a starting point the nose of the projectile was approximated for a short distance by a cone and the Taylor-Maccoll solution to this problem was used. This solution gave the angle of shockwave and the body. The Sauer graphical-numerical iteration method was used for the remainder of the solution.

Preliminary calculations and the work for Mach number 3 were carried out by Dr. H. K. Forster to whom we are indebted for instruction and aid with this work.
Procyonidae Gray 1825
Creators: name: W. Christopher Wozencraft
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora
Procyonidae

description: Family Procyonidae Gray, 1825. Ann. Philos., n.s., 10:339. COMMENTS: Revised by Hollister (1915), Pocock (1921a), Baskin (1982, 1989), and Decker and Wozencraft (1991). Does not include Ailurus or Ailuropoda, following information presented in Davis (1964), Todd and Pressman (1968), Sarich (1976), Ginsburg (1982), Wozencraft (19896), and Decker and Wozencraft (1991); however, Hollister (1915), Gregory (1936), Thenius (1979), and Flynn et al. (1988) considered Ailurus in the Procyonidae.
description: Published as part of W. Christopher Wozencraft, 1993, Order Carnivora, pp. 279-348 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 332, DOI: 10.5281/zenodo.7359191
description: {"references": ["Pocock, R. I. 1921 a. The external characters and classification of the Procyonidae. Proceedings of the Zoological Society of London, 1921: 389 - 422.", "Baskin, J. A. 1982. Tertiary Procyoninae (Mammalia: Carnivora) of North America. Journal of Vertebrate Paleontology, 2: 71 - 93.", "Baskin, J. A. 1989. Comments on New World Tertiary Procyonidae (Mammalia: Carnivora). Journal of Vertebrate Paleontology, 9: 110 - 117.", "Decker, D. M., and W. C. Wozencraft. 1991. Phylogenetic analysis of Recent procyonid genera. Journal of Mammalogy, 72 (1): 42 - 55.", "Todd, N. B., and S. R. Pressman. 1968. The karyotype of the lesser panda (Ailurus fulgens) and general remarks on the phylogeny and affinities of the panda. Carnivore Genetics Newsletter, 5: 105 - 108.", "Sarich, V. M. 1976. Transferrin. Transactions of the Zoological Society of London, 33: 165 - 171.", "Ginsburg, L. 1982. Sur la position systematique du petit panda, Ailurus fulgens (Carnivora, Mammalia). Geobios, Memoire Special, 6: 259 - 277.", "Gregory, W. K. 1936. On the phylogenetic relationships of the giant panda (Ailuropoda) to other carnivores. American Museum Novitates, 878: 1 - 29.", "Thenius, E. 1979. Zur systematischen und phylogenetischen Stellung des Bambusbaren: Ailuropoda melanoleuca David (Carnivora, Mammalia). Zeitschrift fur Saugetierkunde, 44 (5): 286 - 305.", "Flynn, L. J., N. A. Neff, and R. H. Tedford. 1988. Phylogeny of the Carnivora, Pp. 73 - 115, in The phylogeny and classification of the tetrapods (M. J. Benton, ed.). Clarendon Press, Oxford, 2 (Mammals): 1 - 329."]}
Potosinae Trouessart 1904
Creators: name: W. Christopher Wozencraft
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora
Procyonidae

description: Subfamily Potosinae Trouessart, 1904. Cat. Mamm. Viv. Foss. 1:183. COMMENTS: Type genus: Potos E. Geoffroy Saint-Hilaire and G. [Baron] Cuvier, 1795, by original designation.
description: Published as part of W. Christopher Wozencraft, 1993, Order Carnivora, pp. 279-348 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 333, DOI: 10.5281/zenodo.7359191
What is deterministic CHP, and is slack elasticity that useful?
Creators: name: Papadantonakis, Karl Spyros
Publisher: name: California Institute of Technology
Year: 2002
Subjects: execution models
asynchronous
slack elasticity
Computer Science
determinism
function decomposition
distributed computation

description: This paper addresses the issue of slack elasticity in distributed computation, as defined by the Caltech Asynchronous VLSI group.  We show with a counterexample that slack elasticity is not sufficient for process decomposition. We give criteria which imply slack elasticity and which are sufficient for several forms of process decomposition, and present a hierarchy of determinism.
Tenfold reduction of Brownian noise in optical interferometry
Creators: name: Cole, Garrett D.
name: Zhang, Wei
name: Martin, Michael J.
name: Ye, Jun
name: Aspelmeyer, Markus
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Thermally induced fluctuations impose a fundamental limit on precision measurement. In optical interferometry, the current bounds of stability and sensitivity are dictated by the excess mechanical damping of the high-reflectivity coatings that comprise the cavity end mirrors. Over the preceding decade, the mechanical loss of these amorphous multilayer reflectors has at best been reduced by a factor of two. Here we demonstrate a new paradigm in optical coating technology based on direct-bonded monocrystalline multilayers, which exhibit both intrinsically low mechanical loss and high optical quality. Employing these "crystalline coatings" as end mirrors in a Fabry-Pérot cavity, we obtain a finesse of 150,000. More importantly, at room temperature, we observe a thermally-limited noise floor consistent with a tenfold reduction in mechanical damping when compared with the best dielectric multilayers. These results pave the way for the next generation of ultra-sensitive interferometers, as well as for new levels of laser stability.
Bassaricyon J. A. Allen 1876
Creators: name: W. Christopher Wozencraft
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora
Procyonidae
Bassaricyon

description: Bassaricyon J. A. Allen, 1876. Proc. Acad. Nat. Sci. Philadelphia, 28:20, pl. 1. TYPE SPECIES: Bassaricyon Gabbii J. A. Allen, 1876, by original designation. COMMENTS: Reviewed by Poglayen-Neuwall (1965). Several workers have suggested that the several named forms of Bassaricyon are conspecific (Decker and Wozencraft, 1991; Ewer, 1973; Hall and Kelson, 1959; Stains, 1967; Wozencraft, 1989b); but supporting systematic work is lacking.
description: Published as part of W. Christopher Wozencraft, 1993, Order Carnivora, pp. 279-348 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 333, DOI: 10.5281/zenodo.7359191
description: {"references": ["Poglayen-Neuwall, I. 1965. Gefangenschaftsbeobachtungen an Makibaren (Bassaricyon Allen 1876). Zeitschrift fur Saugetierkunde, 30: 321 - 366.", "Decker, D. M., and W. C. Wozencraft. 1991. Phylogenetic analysis of Recent procyonid genera. Journal of Mammalogy, 72 (1): 42 - 55.", "Ewer, R. F. 1973. The Carnivores. Cornell University Press, Ithaca, NY, 494 pp.", "Hall, E. R., and K. R. Kelson. 1959. The mammals of North America. Ronald Press Co., New York, 1: 1 - 546; 2: 547 - 1083 + 79.", "Stains, H. J. 1967. Carnivores, Pp. 325 - 354, in Orders and families of Recent mammals of the world (S. Anderson and J. K. Jones, Jr., eds.). John Wiley and Sons, New York, 453 pp.", "Wozencraft, W. C. 1989 b. Classification of the Recent Carnivora. Pp. 569 - 593, in Carnivore behavior, ecology and evolution (J. L. Gittleman, ed.). Cornell University Press, Ithaca, NY, 620 pp."]}
Ramification theory and perfectoid spaces
Creators: name: Hattori, Shin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11S15

description: Let K and F be complete discrete valuation fields of residue characteristic p>0. Let m be a positive integer no more than their absolute ramification indices. Let s and t be their uniformizers. Let L/K and E/F be finite extensions such that the modulo s^m of the extension O_L/O_K and modulo t^m of O_E/O_F are isomorphic. Let j=
description: 43 pages; Section 2 and 3 revised, the original Section 4 divided into sections, an error in Section 6 corrected, Cor. 6.3 added, other minor changes
Fossil Evidence for the Two-phase Formation of Elliptical Galaxies
Creators: name: Huang, Song
name: Ho, Luis C.
name: Peng, Chien Y.
name: Li, Zhao-Yu
name: Barth, Aaron J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Massive early-type galaxies have undergone dramatic structural evolution over the last 10 Gyr. A companion paper shows that nearby elliptical galaxies with M*>1.3x10^{11} M_sun generically contain three photometric subcomponents: a compact inner component with effective radius Re<1 kpc, an intermediate-scale middle component with Re~2.5 kpc, and an extended outer envelope with $R_e \approx 10$ kpc. Here we attempt to relate these substructures with the properties of early-type galaxies observed at higher redshifts. We find that a hypothetical structure formed from combining the inner plus the middle components of local ellipticals follows a strikingly tight stellar mass-size relation, one that resembles the distribution of early-type galaxies at z~1.5. Outside of the central kpc, the median stellar mass surface density profiles of this composite structure agree closest with those of massive galaxies that have similar cumulative number density at 1.5
description: To appear in The Astrophysical Journal Letter; 5 pages, 3 figures; This work is closely related to Huang et al. 2013, ApJ, please see http://adsabs.harvard.edu/abs/2013ApJ...766...47H for more details
On the horizon instability of an extreme Reissner-Nordström black hole
Creators: name: Lucietti, James
name: Murata, Keiju
name: Reall, Harvey S.
name: Tanahashi, Norihiro
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Aretakis has proved that a massless scalar field has an instability at the horizon of an extreme Reissner-Nordström black hole. We show that a similar instability occurs also for a massive scalar field and for coupled linearized gravitational and electromagnetic perturbations. We present numerical results for the late time behaviour of massless and massive scalar fields in the extreme RN background and show that instabilities are present for initial perturbations supported outside the horizon, e.g.\ an ingoing wavepacket. For a massless scalar we show that the numerical results for the late time behaviour are reproduced by an analytic calculation in the near-horizon geometry. We relate Aretakis' conserved quantities at the future horizon to the Newman-Penrose conserved quantities at future null infinity.
description: 44 pages, 19 figures
Bassaricyon alleni Thomas 1880
Creators: name: W. Christopher Wozencraft
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora
Procyonidae
Bassaricyon
Bassaricyon alleni

description: Bassaricyon alleni Thomas, 1880. Proc. Zool. Soc. Lond., 1880:397. TYPE LOCALITY: "Sarayacu, on the Bobonasa river, Upper Pastasa river", [Ecuador]. DISTRIBUTION: Ecuador east of the Andes, and Peru to Cuzco Prov.; Bolivia; possibly into Venezuela.
description: Published as part of W. Christopher Wozencraft, 1993, Order Carnivora, pp. 279-348 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 333, DOI: 10.5281/zenodo.7359191
Breakup of a nucleus with two weakly bound neutrons on a proton target: Single-scattering approximation
Creators: name: Deltuva, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Three- and four-cluster breakup reactions in the ${}^{16}$C-proton scattering are studied using three-body core-neutron-neutron model for ${}^{16}$C. Single-scattering approximation (SSA) of four-particle equations for transition operators is used to calculate three- and four-cluster breakup amplitudes at 200 and 300 MeV/nucleon energy near proton-neutron ($pn$) quasi free scattering (QFS) conditions. The differential cross section is sharply peaked at $pn$ QFS point and decreases rapidly whenever kinematical conditions deviate from $pn$ QFS. The accuracy of the SSA for the three-cluster breakup is estimated from a three-body model and is found to be as good as 6\% at higher reaction energies in suitable angular regimes. Furthermore, under an additional approximation the three-cluster breakup amplitude factorizes into the $pn$ transition operator and the overlap integral of two- and three-particle bound states. That approximation usually reduces the cross section, in some cases even up to 10\%.
description: 8 pages, 5 figures, to be published in Phys. Rev. C
A general theory of intertemporal decision-making and the perception of time
Creators: name: Namboodiri, Vijay Mohan K
name: Mihalas, Stefan
name: Marton, Tanya
name: Shuler, Marshall G Hussain
Publisher: name: arXiv
Year: 2013
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Animals and humans make decisions based on their expected outcomes. Since relevant outcomes are often delayed, perceiving delays and choosing between earlier versus later rewards (intertemporal decision-making) is an essential component of animal behavior. The myriad observations made in experiments studying intertemporal decision-making and time perception have not yet been rationalized within a single theory. Here we present a theory-Training--Integrated Maximized Estimation of Reinforcement Rate (TIMERR)--that explains a wide variety of behavioral observations made in intertemporal decision-making and the perception of time. Our theory postulates that animals make intertemporal choices to optimize expected reward rates over a limited temporal window; this window includes a past integration interval (over which experienced reward rate is estimated) and the expected delay to future reward. Using this theory, we derive a mathematical expression for the subjective representation of time. A unique contribution of our work is in finding that the past integration interval directly determines the steepness of temporal discounting and the nonlinearity of time perception. In so doing, our theory provides a single framework to understand both intertemporal decision-making and time perception.
description: 37 pages, 4 main figures, 3 supplementary figures
title: Основы философии
Creators: name: ELS IPR BOOKS
Publisher: name: Таганрогский институт управления и экономики
Year: 2021

description: Пособие содержит основной лекционный материал по философии, задания и вопросы для самоконтроля, примерные экзаменационные вопросы и темы докладов. Материал пособия способствует формированию у студентов целостного представления о развитии мировой философии, выработке навыков теоретического осмысления актуальных проблем современности. Рекомендовано для изучения дисциплины ОГСЭ.01 «Основы философии» студентами, обучающимися в системе СПО.
How (In)accurate Are Demand Forecasts in Public Works Projects? The Case of Transportation
Creators: name: Flyvbjerg, Bent
name: Holm, Mette Skamris
name: Buhl, Søren L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Finance (q-fin.GN)
subject: FOS: Economics and business

description: This article presents results from the first statistically significant study of traffic forecasts in transportation infrastructure projects. The sample used is the largest of its kind, covering 210 projects in 14 nations worth US$59 billion. The study shows with very high statistical significance that forecasters generally do a poor job of estimating the demand for transportation infrastructure projects. The result is substantial downside financial and economic risks. Such risks are typically ignored or downplayed by planners and decision makers, to the detriment of social and economic welfare. For nine out of ten rail projects passenger forecasts are overestimated; average overestimation is 106 percent. This results in large benefit shortfalls for rail projects. For half of all road projects the difference between actual and forecasted traffic is more than plus/minus 20 percent. Forecasts have not become more accurate over the 30-year period studied. If techniques and skills for arriving at accurate demand forecasts have improved over time, as often claimed by forecasters, this does not show in the data. The causes of inaccuracy in forecasts are different for rail and road projects, with political causes playing a larger role for rail than for road. The cure is transparency, accountability, and new forecasting methods. The challenge is to change the governance structures for forecasting and project development. The article shows how planners may help achieve this.
description: arXiv admin note: text overlap with arXiv:1302.2544, arXiv:1303.6571, arXiv:1302.3642
On Addition Formulae of KP, mKP and BKP Hierarchies
Creators: name: Shigyo, Yoko
Publisher: name: arXiv
Year: 2012
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 14H70, 37K10, 37K20

description: In this paper we study the addition formulae of the KP, the mKP and the BKP hierarchies. We prove that the total hierarchies are equivalent to the simplest equations of their addition formulae. In the case of the KP and the mKP hierarchies those results had previously been proved by Noumi, Takasaki and Takebe by way of wave functions. Here we give alternative and direct proofs for the case of the KP and mKP hierarchies. Our method can equally be applied to the BKP hierarchy.
Domain Wall Model in the Galactic Bose-Einstein Condensate Halo
Creators: name: de Souza, J. C. C.
name: Pires, M. O. C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We assume that the galactical dark matter halo, considered composed of an axionlike particles Bose-Einstein condensate \cite{pir12}, can present topological defects, namely domain walls, arising as the dark soliton solution for the Gross-Pitaevskii equation in a self-graviting potential. We investigate the influence that such substructures would have in the gravitational interactions within a galaxy. We find that, for the simple domain wall model proposed, the effects are too small to be identified, either by means of a local measurement of the gradient of the gravitational field or by analysing galaxy rotation curves. In the first case, the gradient of the gravitational field in the vicinity of the domain wall would be $10^{-31}\; (m/s^2)/m$. In the second case, the ratio of the tangential velocity correction of a star due to the presence of the domain wall to the velocity in the spherical symmetric case would be $10^{-8}$.
description: 11 pages; 6 figures; v.2: 12 pages, matches published version in JCAP
Bassaricyon beddardi Pocock 1921
Creators: name: W. Christopher Wozencraft
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora
Procyonidae
Bassaricyon
Bassaricyon beddardi

description: Bassaricyon beddardi Pocock, 1921. Ann. Mag. Nat. Hist., ser. 9, 7:231. TYPE LOCALITY: "Bastrica woods, Essequibo River, British Guiana ". DISTRIBUTION: Guyana, and possibly adjacent Venezuela and Brasil. COMMENTS: A renaming of alleni Sclater, 1895 (not Thomas, 1880). Cabrera (1958) erroneously listed Bassaricyon beddardi as Bassariscus beddardi.
description: Published as part of W. Christopher Wozencraft, 1993, Order Carnivora, pp. 279-348 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 333, DOI: 10.5281/zenodo.7359191
description: {"references": ["Cabrera, A. 1958. Dos felidos argentinos ineditos (Mammalia, Carnivora). Neotropica, 3 (12): 70 - 72."]}