106,449 research outputs found
G. McLean's orchard in Buffalo County, Nebraska.
No full textNote: The man standing in the background is Thomas Jefferson Butcher, father of the photographer
Certificate of affiliation given to Butcher Workmen by Amalgamated Meat Cutters and Butcher Workmen of North America
No full textCertificate of affiliation given to Butcher Workmen by Amalgamated Meat Cutters and Butcher Workmen of North America, local union #40, Wichita, Kansas. Legible names on the document include J.E. Hillgardner, Preston, Smith, Harry Turner, W.L. Mathews, Ted Watt, Bill Henerson, Pete Sagerty, R. Thorpe, G. Clarie, E. Herndon, F. DeWitt, George Benniger, Jesse Walters, Wade Plymell, Elsie Plymell, Ed Miller, Patrick E. Gorwan and Dennis Lane
Nearly conservative multivalue methods for separable Hamiltonian problems
No full textThis talk investigates the canonical properties of general linear methods for long time integration of Hamiltonian problems. It is known that
the classical symplecticity property is important for the accurate numerical solution of Hamiltonian problems and this is only possible for "canonical"
Runge-Kutta methods. Even if general linear methods cannot be symplectic (see [3]), it is possible to lead them inherit a nearly canonical behavior
from their nonlinear stability properties. This is done by imposing a further algebraic constraint on their coecient matrices, known as G-symplecticity
[1], which is a rst requirement to obtain an accurate conservation of the invariants of an Hamiltonian problem. Special attention will be given to the
numerical treatment of separable Hamiltonian problems: to this purpose, the family of G-symplectic partitioned general linear methods is introduced [2]. Due to their multivalue nature, partitioned general linear methods generate parasitic components of the numerical solution which needs to be properly removed: we discuss how G-symplectic partitioned general linear methods free from parasitism can be constructed. We also consider the eects of G-symplecticity on the order of convergence of the derived methods, by exploiting the theory of B-series. Numerical experiments on a selection of separable Hamiltonian problems are discussed. This is a joint work with J. C. Butcher from the University of Auckland
(New Zealand). [1] J. C. Butcher 2008 Numerical methods for Ordinary Dierential Equations, Second Edition, Wiley. [2] J. C. Butcher, R. D'Ambrosio, Partitioned general linear methods for separable Hamiltonian problems, in preparation. [3] J. C. Butcher and L. L. Hewitt 2009 The existence of symplectic general linear methods, Numer. Algor. 51, 77-84
Certificate of affiliation given to Stock Yard Workers by Amalgamated Meat Cutters and Butcher Workmen of North America
No full textCertificate of affiliation given to Stock Yard Workers by Amalgamated Meat Cutters and Butcher Workmen of North America, local union #P-202, Wichita, Kansas. Legible names on the document include John Kerwin, W.P. Jones, Walter Bishop, Lawrence Denny, George W. Blunton, Roy G. Rawley, Amos Thorp, A.H. Presley, Charles Bailey, Ben Smith, Harry Poole and Sam Tulario
Analysis of Roman Silver coins, Augustus to the reform of Trajan (27 BC - AD 100)
No full textIn 2001 funding was obtained from the Leverhulme Trust (Grant No. RF&G/6/2002/0336) and the Faculty of Arts and Sciences Research Committee and the University Research Board of the American University of Beirut, Lebanon to undertake a one year project to apply this methodology to the coinage of the first Imperial dynasty, that of the Julio-Claudians. A more sensitive analytical technique was employed, inductively-coupled plasma atomic emission spectrometry (ICP-AES), that enabled much better quality data for important trace elements, such as arsenic, tin and bismuth, to be obtained. These data, together with scanning electron microscopy (SEM), micro-analysis (SEM-EDS), optical microscopy (metallography) and some limited lead isotope analysis by laser ablation multi-collector inductively-coupled plasma mass spectrometry (LA-MC-ICP-MS) form the basis of a series of publications in print (Butcher and Ponting 2005a), in press (Butcher and Ponting 2005b) and in preparation.
In 2006 a second stage of the project was awarded funding from the Arts and Humanities Research Council (AHRC) over three years (Grant ID: 119434). This project used the same suite of analytical techniques to investigate a much larger number of coins, including an expanded programme of lead isotope analyses (by thermal ionisation mass spectrometry). The first stage of this project resulted in a number of journal publications and contributions to edited volumes (Butcher et al. 2009; Butcher and Ponting 2012; Ponting 2009 and 2012). In 2014 a substantial monograph will be published that brings together and discusses the results from all the above projects covering Roman Imperial silver coinage up until the Reform of Trajan. It is the raw data upon which this monograph is based that are archived here
Letter re: flowers sent
No full textLetter from Ruth Butcher, wife of radio broadcaster Harry Butcher, to Amon Carter thanking him for flowers he sent her and cigars and bourbon he sent her husband.April 8, 1943. Dear Mr. Carter, I have had such a wonderful time enjoying the beautiful flowers. You were so nice and thoughtful to send them and they furnished me a much needed "cheer" as it was very hard to send my Harry back again. I must confess I enjoyed Mrs. Eisenhower's also, as she isn't back yet from San Antonio but I shall tell her about them when she returns. Harry was so pleased with the cigars and bourbon and of course will thank you in due time but since mail is so uncertain I will use his "proxy" to thank you for him - He took your letter with him and I do hope he will have the good fortune of sending you some encouraging news. I think of you often and if good wishes can help, indeed you have mine added to those of your many, many friends_ Kindest regards, Ruth Butcher (Mrs. Harry C. Wardman Park Hotel Wash., D.C
Butcher series for Hamiltonian Poisson integrators through symplectic groupoids
No full textWe exhibit a new pre-Lie algebra in the framework of symplectic groupoids and, in turn, introduce a pre-Lie formalism of Butcher trees for the approximation of Hamilton-Jacobi solutions on any symplectic groupoid G Ñ M. The impact of this new algebraic approach is twofold. On the geometric side, it yields algebraic operations to approximate Lagrangian bisections of G using the Butcher-Connes-Kreimer Hopf algebra and, in turn, aims at a better understanding of the group of Hamiltonian diffeomorphisms of M. On the computational side, we define a new class of Poisson integrators for Hamiltonian dynamics on Poisson manifolds
Butcher series for Hamiltonian Poisson integrators through symplectic groupoids
No full textWe exhibit a new pre-Lie algebra in the framework of symplectic groupoids and, in turn, introduce a pre-Lie formalism of Butcher trees for the approximation of Hamilton-Jacobi solutions on any symplectic groupoid G Ñ M. The impact of this new algebraic approach is twofold. On the geometric side, it yields algebraic operations to approximate Lagrangian bisections of G using the Butcher-Connes-Kreimer Hopf algebra and, in turn, aims at a better understanding of the group of Hamiltonian diffeomorphisms of M. On the computational side, we define a new class of Poisson integrators for Hamiltonian dynamics on Poisson manifolds
Yelicones samaesanensis Butcher, 2014, sp. nov.
No full textYelicones samaesanensis sp. nov. (Figs 1 & 2) Holotype, female; data: Thailand. Chonburi: Khao Ma Jor, Samaesan, Sattahip, 25 October 2013, V. Charoennitiwat, light trap; deposited: Insect Collections of Chulalongkorn University, Bangkok, Thailand (CUMZ). Paratype, male; data: Thailand. Chonburi: Khao Ma Jor, Samaesan, Sattahip, 1 June 2013, B. Butcher, light trap; deposited: Insect Collections of Chulalongkorn University, Bangkok, Thailand (CUMZ). Description (female). Length of body 4.5 mm, length of fore wing 2.5 mm. Antennae with 35–37 flagellomeres; terminal flagellomere 4 x longer than wide; first flagellomere 1.25 and 1.1 longer than 2 nd and 3 rd, respectively; first flagellomere 1.6 longer than wide; third flagellomere 1.4 longer than wide; height of clypeus: inter-tentorial distance: tentorio-ocular distance = 1.75: 5: 1; clypeus with deep punctuation; face mostly with deep transverse striate with mid-longitudinal carina between antennal sockets, nearly reaching clypeus; height of eye: width of face: width of head = 1: 1: 1.8; length of face 1.7 x width of face; frons with distinct transverse striate behind antennal sockets, with complete mid-longitudinal carina; occiput moderately setose towards sides; horizontal length of eye: horizontal length of head behind eye = 1.3: 1; post ocellar length: transverse diameter of posterior ocellus: shortest distance between posterior ocellus and eye = 2.4: 1: 2.4; with complete occipital carina. FIGURE 1. Light micrographs of Y. samaesanensis n. sp., A, whole body; B, face; C, lateral view of head; D, top of head and mesoscutum. Mesosoma with moderately short setose (except for the anterior half of pronotum) 1.5 x longer than high; mesoscutum without mid-longitudinal carina, postero-medially with deep longitudinal irregular grooves; notauli weakly developed, indistinctly impressed throughout length of mesoscutum; scutellar sulcus with 6 carinae between two outer ones; scutellum longitudinal striate, moderately setose, postero-medially deep punctured; metanotum postero-medially without pit; mesopleuron deeply rugose-punctate, antero-laterally with short striate; precoxal sulcus deep, curved extending whole length of mesopleuron, deeply crenulate; mesopleural suture distinctly crenulate; propodeum aerolate-rugose. FIGURE 2. Light micrographs of Y. samaesanensis n. sp., E, lateral view of mesosoma; F, propodeum; G, wings; H, top view of metasoma. Fore wing: Length of vein SR 1: 3 -SR: r = 3.4: 2: 1; vein 1 -SR+M weakly sinusoidal; vein r arising 0.5 distance along pterostigma; lengths of veins 2 -SR: 3 -SR: r-m = 1: 2: 1.1; lengths of veins 2 -SR+M: 2 -M: m-cu = 1: 3: 1.5; lengths of veins 2 -CU 1: 1 -CU 1 = 1.5: 1; vein C+SC+R and 1 -SR forming an angle of 40 °. Hind wing: lengths of veins 1 -rm: SC+R 1 = 1: 1.6; veins 2 +SC+R weakly transverse; vein SR reduced distally; vein 2 m-cu postfurcal and straight; marginal cell, basal cell and base of wing evenly setose. Length of fore femur: tibia: tarsus = 2: 2.5: 1; fore femur 3 x longer than maximally deep; fore tibia without mid-longitudinal ridge. Hind femur 3 x longer than maximally deep; lengths of hind femur: tibia: basitarsus = 1.9: 2.7: 1; hind basitarsus 1.9 x longer than maximally deep. Metasomal tergites moderately setose; first metasomal tergite striate, 1.1 x wider than medially long, anteriorly with smooth triangle formed by uniting dorsal carinae, with median carinae extending to posterior margin of tergite; second metasomal tergite striate, antero-medially with indistinct triangular area, 1.9 x wider than medially long, without median carina; second suture straight and deeply crenulate; third metasomal tergite 2.5 x wider than long, basal half striate, 0.4 distal smooth; metasomal tergites 4–7 shiny and smooth. Colour: body largely yellowish ivory, except for occiput, mesoscutum postero-medially and laterally, metanotum, basal 0.2 of first metasomal tergite, second suture, distal 0.2 of 3 rd metasomal tergite, distal 0.4 of 4 th metasomal tergite, dark brown. Diagnosis. Y. samaesanensis keys out to the couplet 6 using the key to East Palaearctic and Oriental species of Yelicones (Quicke et al. 1997). It can be distinguished from Y. contractus Papp by the second metasomal tergite completely striate, second suture striate, hind basitarsus unicolorous, without distinct greyish blotch mediobasally and hind wing vein 2 SC+R weakly transverse. Modification to the key to the species of Yelicones of the East Palaearctic and Oriental region (Quicke et al. 1997) to accommodate the new species. 6. Marginal cell of hind wing not strongly expanded at basal quarter, and only slightly narrowing distally; hind wing vein 2 -SC+R absent; second metasomal tergite mostly longitudinally striate and with distinct mid-basal, obtuse, triangular area; hind basitarsus without greyish blotch medio-basally.................................................................. 7 - Marginal cell of hind wing strongly expanded basally, almost 2 x wider at basal quarter than apically; hind wing vein 2 -SC+R strongly transverse; second metasomal tergite at most with basal 0.25 longitudinally striate and at most with trace of mid-basal, obtuse, triangular area; hind basitarsus with distinct greyish blotch mediobasally.................................. 7 a 7 a. Antennae with less than 30 flagellomeres; femora with faint brownish suffusion; second metasomal tergite basally with short, fine and longitudinal striate; second suture indistinct; pterostigma opaque yellow, weakly brownish apically............................................................................................... Y. contractus Papp, 1991 - Antennae with more than 32 flagellomeres; femora ivory, without faint brownish suffusion; second metasomal tergite completely striate, without median carina; second suture distinct, with deep crenulate; pterostigma yellow...................................................................................................... Y. samaesanensis n.sp.Published as part of Butcher, Buntika Areekul, 2014, A new species of the Ye l i c o n e s Cameron (Hymenoptera: Braconidae: Rogadinae) from Thailand, pp. 192-196 in Zootaxa 3764 (2) on pages 193-195, DOI: 10.11646/zootaxa.3764.2.6, http://zenodo.org/record/23165
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