1,216 research outputs found
Grigg, Asa W. - An inaugural dissertation on malaria
No full textHandwritten inaugural dissertation on malaria by Asa W. Griggs, of Georgia.Inaugural dissertation; no. 134
Graduate recital, choral conducting. Grigg, Susan, 1983
No full textRecorded during a live performance at Dalton Center Recital Hall, Western Michigan University, Kalamazoo, Michigan, April 5, 1983, the 258th concert of the School of Music’s 1982-1983 season.Mixed chorus with string orchestra, organ, or piano accompaniment or unaccompanied ; various vocal soloists ; Sue Grigg, conductor.In partial fulfillment of the requirements of the Master of Music degree in choral conducting, Western Michigan University, 1983.Information from performance program.Reel 1: Cantate Domino (1619) / Jan Sweelinck -- (5:23) Das Vaterunser (c. 1650) / Heinrich Schütz (chorus and string orchestra ; Martin C. Butorac, organ) -- (14:54) Missa brevis Sancti Joannis de Deo (c. 1775) / Franz Joseph Haydn (chorus ; Caren Baker George, soprano soloist ; string orchestra ; Martin C. Butorac, organ).Reel 2: Four Slovak folk songs (1917). Wedding song from Poniky ; Song of the Hayharvesters from Hiadel ; Dancing song from Medzibrod ; Dancing song from Poniky / Bela Bartok (chorus ; Lori Ann Seinar, piano) -- (6:29) A child’s ghetto / Hanley Jackson -- (13:50) Great day / Negro spiritual ; arranged by Martin -- (16:25) Lead on softly, Lord / Maxcine W. Pasigate [i.e. Posegate] (chorus ; Wanda Weatherspoon, soprano soloist ; Les Rowsey, tenor soloist ; Matthew Elliott, bass soloist)
Quantitative modelling of the human–Earth System a new kind of science?
No full textThe five grand challenges set out for Earth System Science by the International Council for Science in 2010 require a true fusion of social science, economics and natural science—a fusion that has not yet been achieved. In this paper we propose that constructing quantitative models of the dynamics of the human–Earth system can serve as a catalyst for this fusion. We confront well-known objections to modelling societal dynamics by drawing lessons from the development of natural science over the last four centuries and applying them to social and economic science. First, we pose three questions that require real integration of the three fields of science. They concern the coupling of physical planetary boundaries via social processes; the extension of the concept of planetary boundaries to the human–Earth System; and the possibly self-defeating nature of the United Nation’s Millennium Development Goals. Second, we ask whether there are regularities or ‘attractors’ in the human–Earth System analogous to those that prompted the search for laws of nature. We nominate some candidates and discuss why we should observe them given that human actors with foresight and intentionality play a fundamental role in the human–Earth System. We conclude that, at sufficiently large time and space scales, social processes are predictable in some sense. Third, we canvass some essential mathematical techniques that this research fusion must incorporate, and we ask what kind of data would be needed to validate or falsify our models. Finally, we briefly review the state of the art in quantitative modelling of the human–Earth System today and highlight a gap between so-called integrated assessment models applied at regional and global scale, which could be filled by a new scale of model
Grigg, Florence (Birth, 1906-10-08)
No full textAddress: 1506 Gorman St.6428/Pg. 53/1906/F W/Cinti,Ohio/Cinti,Ohio/Dr. Geiser, Dec./Filed By aff. of father,Jacob Grigg 5-6-40,Jos. Back, ROriginal record filed in drawer labeled 'GRIESS-GROTE, H'
Two dimensional hybrid simulations of small scale obstacles in the solar wind
No full textThe structure and dynamics of the solar wind interaction with two small
scale obstacles (of the order of a pickup ion gyroradius) is examined. These are a
comet, comparable to Grigg-Skjellerup, and a weakly ionospheric planet. We also
perform a pilot study of an intrinsically magnetized planet in such flow, in preparation
for a future three-dimensional simulation. Here, we use two-dimensional hybrid
simulations (particle ions, fluid electrons) and consider different solar wind Alfven
Mach number flow (MA) and interplanetary magnetic field orientation relative to
this plane. This allows control of the available wave types.
The cometary simulations display magnetosonic "turbulence" as MA is increased,
when the field is perpendicular to the simulation plane. If we allow parallel
propagating modes by setting the field parallel to the plane, we find the "turbulence"
significantly changes in scale and extent, suggesting resonant growth of Alfven ion
cyclotron waves in the presence of magnetosonic "turbulence" occurs. Free energy
is available from picked up cometary ions. The process depends on the cometary ion
density, which strongly varies, and we conclude this explains the broadband nature
of the disturbances.
In the perpendicular field orientation, the planetary source produces a novel
two tail structure which continuously strips the planetary ionosphere. We find these
tails have very distinct characteristics, resulting in the wake being filled relatively
quickly downstream, by complex structure. At higher MAl magnetosonic "turbulence"
again appears. Switching the field parallel to the plane causes massive field
line draping and pile-up, and causes instability. A long lasting wake appears, and
we conclude that a three-dimensional simulation is required.
The magnetized ionospheric planet pilot study proved difficult to scale accurately
in two dimensions. The planetary field failed to penetrate the solar wind,
however it appears the simulation would be stable and achieve equilibrium in three
dimensions
Probabilistyczne podejście do obliczania przepływów mocy w sieci energetycznej
No full textMestrado em Engenharia Electrónica e TelecomunicaçõesThis thesis sets forth a computational framework of probabilistic load
flow analysis taking into consideration of high penetration of variable
energy resources, such as the wind generation. The framework enables
a faster and more precise estimation of the impact of variable energy
resources in load flow analysis.
This thesis consists of six chapters: introduction, probabilistic load flow
algorithms, computer program for PLF calculations, conclusion and
future work, appendices and reference.
The second part contains the mathematical development of the
framework based on Sequence Operation Theory newly established.
The formulation is novel in that it provides an improved computational
alternative to the existing simulation based frameworks.
The third part contains information about program written in Fortran
90/95 environment like format of reading data etc. Include the studies
based on the standard IEEE 9-bus system. Data obtained as a result
of program’s work in debugging process are compared with manual
calculations for the same network to check if the program is working
in proper way. Moreover comprise the results obtained in the program
for largest tested network 96-RTS (24 buses).
Appendices include content of two input files (random generation,
system configuration for 96-RTS) and intermediate result calculated for
the 24-bus system.Esta dissertação descreve parte do desenvolvimento de uma
aplicação de software para calcular o fluxo de potência em sistemas
de redes elétricas usando métodos probabilísticos, considerando
o caso da existência de geradores com produção fortemente variável,
como acontece nas quintas eólicas.
A dissertação está dividida em seis capítulos: introdução, algoritmos
de fluxo de potência probabilísticos, desenvolvimento do código,
conclusão, apêndices e referências.
A segunda parte é constituída pelo desenvolvimento matemático
do método utilizado, que foi recentemente criado apresentando uma
alternativa mais eficiente às tradicionais.
A Terceira parte contem informação sobre a o programa criado para
implementar o algoritmo e seu teste, nomeadamente o desempenho
na análise do standard IEEE 96-RTS (24 - bus system).
Os apêndices incluem o conteúdo dos ficheiros de entrada
e resultados intermédios para debug da solução apresentada.Praca przedstawia probabilistyczną metodę do obliczania przepływów
mocy w sieci energetycznej z szczególnym uwzględnieniem
zmiennych źródeł energii takich jak generacja wiatrowa.
Prezentowane podejście umożliwia szybsze i bardziej precyzyjne
oszacowanie zmiennych zasobów energetycznych w analizie
rozpływów mocy.
Dokument został podzielony na sześć następujących części: wstęp,
algorytm probabilistic load flow, program komputerowy,
podsumowanie i możliwośći rowoju projektu, dodatki, bibliografia.
Druga część pracy zawiera założenia metody Sequence Operation
Theory (SOT). Prezentowany algorytm jest nowy i stanowi alternatywę
dla dotychczasowo stosowanych metod.
Część trzecia opisuje program komputerowy z zaimplementowaną
metodą SOT stworzony na potrzeby tej pracy. Kod programu został
napisany w środowisku Fortran 90/95. Rozdział zawiera badania
oparte na systemie sieci energetycznej 9 magistral w celu
sprawdzenia poprawności działania kodu. Ponadto w tej części
zostały zaprezentowane wyniki działania aplikacji dla systemu
testowego 96-RTS (24 magistral).
W dodatkach zaprezentowano zawartość dwóch plików wejściowych:
konfigurację systemu testowego 96-RTS i wartości generacji dla
zmiennego źródła oraz pośrednie wyniki obliczeniowe dla tego
systemu
Urinary prostanoids in preschool wheeze
No full textUK National Institute for Healthcare Research, Efficacy and Mechanisms Evaluation (NIHR-EME) Programme (Reference 08/43/03). Professor Grigg is part funded by the North Thames Collaboration for Leadership in Applied Health Research and Care
Illinois in 1837; a sketch descriptive of the situation, boundaries, face of the country, prominent districts, prairies, rivers, minerals, animals, agricultural productions, public lands, plans of internal improvement, manufacturers, &c., of the state of Illinois: also, suggestions to emigrants, sketches of the counties, cities, and principal towns in the state: together with a letter on the cultivation of the prairies, by the Hon. H. L. Ellsworth. To which are annexed the letters from a rambler in the West ...
No full text"The publisher is probably the author. It was got up mainly to promote the sale of Illinois lands then owned by John Grigg of Philadelphia."--:Sabin, Bibl. Amer. v.9, no. 34260.On cover: Illinois in 1837 & 8: with a map. Containing, also, the emigrant's guide to the West. Philadelphia, Grigg & Elliot, 1838.Mode of access: Internet.BEIN 1977 2741: Advertisement of the Collegiate and commercial school, New Haven, Con.[!] on verso of p. 143, is dated October, 1837, and is followed by [8] p. of publisher's advertisement. Table of contents repeated on p. [4] of cover. Bookplate of Edwin Stanton Fickes
Jeypore enamels
No full textS.S. Jacob and T.H. Hendley ; with 28 full-gage coloured illustrations containing 120 designs by W. Grigg
Cometary Explorer to Grigg-Skjellerup 1977
No full textThe mission analysis and technical summary of the spacecraft and its subsystems are presented for an Explorer flight to investigate the solar wind interaction with the Grigg-Skjellerup coma. The basic spacecraft system is the same as Explorer 43 and 47, and the mission characteristics which distinguish this mission from previous IMP missions are discussed. The physical and chemical characteristics of the comet's nucleus and coma are described, and the spacecraft trajectory and scientific payloads required to study the solar wind-cometary atmospheric interaction are considered
- …
