684 research outputs found
Analysis of watersheds and river systems: short course
No full textShort course: Analysis of Watersheds and River Systems, Session I and II, held on May 28-June 1, 1979 and June 4-June 8, 1979 at Colorado State University, Fort Collins, Colorado.Speakers: Dr. E. V. Richardson, Dr. David Duttweiller, Mr. Lee Mulkey, Dr. Stanley A. Schumm, Dr. Daryl B. Simons, Dr. Ross Carder.Includes bibliographical references.This short course is designed for individuals dealing with the analysis of watersheds and rivers. Practical applications concerning physical processes will be emphasized.Chapter 1. General introduction / Daryl B. Simons and Ruh-Ming Li -- Chapter 2. Introduction to watershed and river analysis / Daryl B. Simons and Ruh-Ming Li -- Chapter 3. Physical processes governing response of watersheds and rivers / Daryl B. Simons, Timothy J. Ward and Ruh-Ming Li -- Chapter 4. Sediment transport / H. W. Shen -- Chapter 5. Alluvial bed roughness / H. W. Shen -- Chapter 6. Overview of flood routing methods / Ruh-Ming Li and V. Miguel Ponce -- Chapter 7. Water routing and yield from watersheds, Part I and II / Ruh-Ming Li, Daryl B. Simons, and Kenneth G. Eggert -- Chapter 8. Water routing in rivers / Yung-Hai Chen -- Chapter 9. Stage discharge relations / Robert K. Simons, Ruh-Ming Li, and Daryl B. Simons -- Chapter 10. Watershed sediment yield / Ruh-Ming Li, Daryl B. Simons, and Timothy J. Ward -- Chapter 11. Unsteady sediment routing models in rivers / Yung-Hai Chen and Daryl B. Simons -- Chapter 12. Known discharge sediment routing / Glenn O. Brown and Ruh-Ming Li -- Chapter 13. Landslide potential delineation / Timothy J. Ward, Ruh-Ming Li, and Daryl B. Simons -- Chapter 14. Application of Kalman filtering in watershed and river analysis / Nguyen Duong -- Chapter 15. Handheld calculator programs for analysis / Kenneth G. Eggert, Ruh-Ming Li, and Daryl B. Simons -- Chapter 16. Overview of case studies and data management / Daryl B. Simons, Ruh-Ming Li, and Nguyen Duong -- Chapter 17. Canal and channel design and river response analysis / Daryl B. Simons, Ruh-Ming Li, and Yung-Hai Chen -- Chapter 18. Degradation and aggradation analysis / Ruh-Ming Li and Daryl B. Simons -- Chapter 19. Watershed best management analysis / Ruh-Ming Li, Timothy J. Ward, and Daryl B. Simons -- Chapter 20. Large river basin analysis: Yazoo River Sedimentation Study / Daryl B. Simons and Ruh-Ming Li
UNUSUAL NEGATIVE MOLECULAR IONS AND DIANIONS AND CHEMICAL BONDS INVOLVING RYDBERG ORBITALS
No full text1. Maciej Gutowski, Piotr Skurski, Kenneth D. Jordan, Jack Simons; Int J. Quant. Chem.; 64, 183 (1997). 2. P. Skurski, M. Gutowski and J. Simons, Int J. Quant Chem. 76. 197 (2000). 3. Alexander I. Boldyrev, Maciej Gutowski, and Jack Simons; Acc. Chem. Res.; 29, 497 (1996). 4. Jack Simons and Maciej Gutowski, Chem. Rev. 91, 669 (1991). 5. A. I. Boldyrev and J. Simons; J. Phys. Chem. 96, 8840 (1992); A. I. Boldyrev and J. Simons. J. Phys. Chem., 103, 3575 (1999).Author Institution: Department of Chemistry and Henry Eyring Center for Theoretical Chemistry, University of UtahIn this presentation, our work and that of several other groups on the species listed in the title will be discussed. Particular emphasis will be given to: (a) dipole bound (which have also been the subject of numerous experimental studies), (b) dipole bound (which remain theoretical speculation), (c) resonance states of anions that can be made stable via ``solvation'', (d) dianions such as that have extremely high second electron binding (which occur in the solid state and in solution), (e) anions in which the ``extra'' electron occupies a Rydberg-like molecular (which have been seen experimentally), and (f) chemical bonds that arise when a Rydberg-like orbital is
Chern-Simons effect on the dual hydrodynamics in the Maxwell-Gauss-Bonnet gravity
No full textFollowing the previous work arXiv:1103.3773 [hep-th], we give a more general and systematic discussion on the Chern-Simons effect in the 5-dimensional Maxwell-Gauss-Bonnet gravity. After constructing the first order perturbative black brane solution, we extract the stress tensor and charge current of dual fluid. From these results, we find out the dependence of some transport coefficients on the Gauss-Bonnet coupling alpha and Chern-Simons coupling kappa(cs). We also show that the new anomalous term can provide an additional contribution to the anomalous chiral magnetic conductivity. (C) 2012 Elsevier B.V. All rights reserved.Physics, MultidisciplinarySCI(E)6ARTICLE2-5324-33071
Schwinger-Dyson functional in Chern-Simons theory
No full textIn perturbative SU(N) Chern–Simons gauge theory, it is shown that the Schwinger–Dyson equations assume a quite simplified form. The generating functional of the correlation functions of the curvature is considered; it is demonstrated that the renormalized Schwinger–Dyson functional is related with the generating functional of the correlation functions of the gauge connections by some kind of duality trans- formation
SIM(1)–VSR Maxwell–Chern–Simons electrodynamics
No full textAbstractIn this paper we propose a very special relativity (VSR)-inspired generalization of the Maxwell–Chern–Simons (MCS) electrodynamics. This proposal is based upon the construction of a proper study of the SIM(1)–VSR gauge-symmetry. It is shown that the VSR nonlocal effects present a significant and healthy departure from the usual MCS theory. The classical dynamics is analysed in full detail, by studying the solution for the electric field and static energy for this configuration. Afterwards, the interaction energy between opposite charges is derived and we show that the VSR effects play an important part in obtaining a (novel) finite expression for the static potential
Two-loop Sudakov form factor in ABJM
No full textThis article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited
The life of North American insects : illustrated by numerous colored engravings and narratives /
No full textParts issue: Each pt. (no.) in buff (pt. 1-4) or light green (pt. 5-6) paper covers. Contents on p. [2] of covers; prospectus on p. [4] of covers, pt. 1; prospectus and publisher's advertisements on p. [3-4] of covers, pts. 2-4.Includes index."Life of Sir Hans Sloane": p. [1]-16.Illustrations: 7 prints : lithograph, b&w (1), hand col. (6) ; full-page. Comprise port. of Sir Hans Sloane, with imprint "Lith. of Haasis & Haagen, N.Y.," and 6 hand-col. plates depicting insects. "Most ... have been originally drawn and painted from nature by ... Washington Hoppin, M.D., of this city [Providence]"--P. 41.Bound issue: Title page: Published for the author. Providence : Sayles, Miller and Simons, printers, 1854.Publisher information on covers of pts. varies. Pt. 1: New York : George Savage : Lamport, Blakeman and Law, 1853; pts. 2-4: New York : Published for the author, McElrath and Barker, 1853[-1854]; pts. 5-6: Providence : Published for the author (Sayles, Miller and Simons, printers), 1854.Originally issued in 6 pts., 1853-1854. Title page and other preliminaries in pt. 6.Although each pt. is marked "vol. 1," no further vols. were published.Originally published: New York : George Savage, 1853. Cf. Sabin.SabinMode of access: Internet.Provenance (Arents copy 2): H.P. Pratt, M.D. (inscription on covers of pts. 2-3).Arents copies: Parts issue. Copy 1: Housed in brown cloth protective covers and slipcase. Copy 2: Housed in olive green cloth protective covers and quarter dark green morocco and olive green cloth slipcase, gilt.Copy in QIT: Bound in 1 v
Locations of selected small earthquakes in the Zagros mountains
No full textAuthor Posting. © American Geophysical Union, 2005. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geochemistry Geophysics Geosystems 6 (2005): Q03001, doi:10.1029/2004GC000849.The Zagros mountains of southern Iran are marked by a zone of high seismicity and accommodate a significant portion of the convergence between Arabia and Eurasia. Due to the lack of dense local seismic or geodetic networks, the inferred kinematics of the collision in Iran is mainly based on catalogs of teleseismically determined earthquake locations. We surveyed all M w > 4.5 earthquakes in the Harvard Centroid Moment Tensor (HCMT) and International Seismological Centre (ISC) catalogs that occurred in the Zagros mountains during the period 1992–2002 and that were spanned by Interferometric Synthetic Aperture Radar (InSAR) images from the ERS 1 and 2 satellites. We invert the observed deformation for the best fitting point source, single fault plane, and distributed fault slip for four earthquakes and one unexplained deformation event. We find that we can precisely locate earthquakes that are too small to be well-located by either the HCMT or ISC catalogs, allowing us to tie specific earthquakes to active geologic structures.ERS 1 and 2 data were acquired through an
ESA category-1 proposal. R. Lohman is partially supported by
a NASA New Investigator Program grant award to M. Simons
Mechanisms of top-down facilitation in perception of visual objects studied by fMRI
No full textPrior knowledge regarding the possible identity of an object facilitates its recognition from a degraded visual input, though the underlying mechanisms are unclear. Previous work implicated ventral visual cortex but did not disambiguate whether activity-changes in these regions are causal to or merely reflect an effect of facilitated recognition. We used functional magnetic resonance imaging to study top-down influences on processing of gradually revealed objects, by preceding each object with a name that was congruent or incongruent with the object. Congruently primed objects were recognized earlier than incongruently primed, and this was paralleled by shifts in activation profiles for ventral visual, parietal, and prefrontal cortices. Prior to recognition, defined on a trial-by-trial basis, activity in ventral visual cortex rose gradually but equivalently for congruently and incongruently primed objects. In contrast, prerecognition activity was greater with congruent priming in lateral parietal, retrosplenial, and lateral prefrontal cortices, whereas functional coupling between parietal and ventral visual (and also left lateral prefrontal and parietal) cortices was enhanced in the same context. Thus, when controlling for recognition point and stimulus information, activity in ventral visual cortex mirrors recognition success, independent of condition. Facilitation by top-down cues involves lateral parietal cortex interacting with ventral visual areas, potentially explaining why parietal lesions can lead to deficits in recognizing degraded objects even in the context of top-down knowledge
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