167,808 research outputs found
UNA ESPECIE NUEVA DE HELICONIA (HELICONIACEAE) DEL CHOCÓ BIOGEOGRÁFICO COLOMBIANO
No full textSe describe e ilustra Heliconia samperiana W. J. Kress & Betancur, una especie nueva del Chocó Biogeográfi co colombiano. Además, se presenta información sobre susrelaciones taxonómicas, estado de conservación y distribución y hábitat.</div
Kress (Cress) Family - Accession 715 no. 9
No full textThe Descendants of Johannes Nicolaus Heinrich Kress (Cress) chronicles the Kress family of North Carolina. Johannes and Catharine Kress had 12 children. The book traces these children and their families. In addition to the genealogical information, the book includes photographs, Coat of Arms information, wills, and an index. Many other surnames connected with the Kress (Cress) family are also included. Please see the attached Table of Contents and Index.https://digitalcommons.winthrop.edu/manuscriptcollection_findingaids/2342/thumbnail.jp
Nonlinear integral equations and the iterative solution for an inverse boundary value problem
No full textDetermining the shape of a perfectly conducting inclusion within a conducting medium from voltage and current measurements on the accessible boundary of the medium can be modelled as an inverse boundary value problem for harmonic functions. We present a novel solution method for such inverse boundary value problems via a pair of nonlinear and ill-posed integral equations for the unknown boundary that can be solved by linearization, i.e., by regularized Newton iterations. We present a mathematical foundation of the method and illustrate its feasibility by numerical examples
Inverse scattering for shape and impedance
No full textWe consider the inverse problem of determining both the shape and the impedance of a two-dimensional scatterer from a knowledge of the far-field pattern of the scattering of time-harmonic acoustic or electromagnetic waves by solving the ill posed nonlinear equation for the operator that maps the boundary and the boundary impedance of the scatterer onto the far-field pattern. We establish results on the injectivity of the linearized map and obtain satisfactory reconstructions by a regularized Newton iteration
Entrance, State Fair, Dallas, Texas.
No full textRecto: [imprinted] Entrance, State Fair, Dallas, Texas. Verso: [imprinted] Published by S. H. Kress & Co. Made in U. S. A
S.H. Kress & Company
No full textPhotograph of the "fountain lunch" at the S.H. Kress Company at 403 W. Commerce Street in Oklahoma City
[Missouri-Kansas-Texas Railroad Round House, Denison, Texas]
No full textDate refers to postmark. Recto: [imprinted] M. K. & T. Round House, Denison, Texas. Verso: [imprinted] Published by S. H. Kress & Co. Made in U. S. A. [postmarked] Lindale, Tex. Dec 16, 6 PM, 1913. [handwritten note and address not transcribed]
Viaduct, the Longest in the World, Dallas, Tex.
No full textDate obtained from imprint made of same postcard found on eBay. Recto: [imprinted] Viaduct, the Longest in the World, Dallas, Tex. Verso: [imprinted] Pub. by S. H. Kress & Co. Plate 5286
[H. & T.C. R.R. Cotton Blockade, Houston, Texas]
No full textDate and Alternative Title obtained from imprint made from same negative within the collection. Source: #0111. Recto: [imprinted] 131 Cotton Blockade at Grand Central Depot. Houston, Tex. Pub. by Carter & Gut. N.Y. for the Kress Stores
On Trefftz' integral equation for the Bernoulli free boundary value problem
No full textWe propose a new numerical method for the solution of Bernoulli's free boundary value problem for a harmonic function w in a doubly connected domain D in R-2 where an unknown free boundary Gamma(0) is determined by prescribed Cauchy data of w on Gamma(1) in addition to a Dirichlet condition on the known boundary Gamma(1). Our method is based on a two-by-two system of boundary integral equations for the unknown boundary Gamma(0) and the unknown normal derivative g = partial derivative(nu)w of w on Gamma(1). This system is nonlinear with respect to Gamma(0) and linear with respect to g and we suggest to solve it simultaneously for Gamma(0) and g by Newton iterations. We establish a local convergence result and exhibit the feasibility of the method by a few numerical examples
- …
