13,730 research outputs found
Land Grant Application- Dunn, Christopher (Belgrade)
No full textLand grant application submitted to the Maine Land Office for Christopher Dunn for service in the Revolutionary War.https://digitalmaine.com/revolutionary_war_me_land_office/1284/thumbnail.jp
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[Resume: Christopher Dunn Luther]
No full textA resume for Christopher Dunn Luther
Experimental studies of director dynamics and distributions in liquid crystals
No full textThis Thesis reports the results of investigations into the director dynamics and the director distributions in several thermotropic, calamitic liquid crystal systems, made using EPR spectroscopy. Chapter 1 gives an introduction to liquid crystals, including a description of the principal phase types and a review of basic structure-property relationships. The fundamental properties of liquid crystals are described, and a link is made with the techniques that are used to study them and how they are used. In Chapter 2, the EPR experiment and its applicability to the study of liquid crystal systems is described. In Chapter 3, the experiment that is used to measure the rate of magnetic field-induced director realignment in the nematic phase of a typical low molar mass liquid crystal is described. The EPR experiment shows very clearly that the macroscopic alignment of the director is maintained during relaxation through 45° but is lost upon relaxation through -80°. In Chapter 4, the technique developed in Chapter 3 is used to study the different director reorientation responses in the nematic phases formed by an odd and even dimer from a homologous series and in a monomer that may be considered to be the basic building block of these two dimers; the most striking result is that the monomer shows a much faster director reorientation than either of the dimers and that there is very little to differentiate between the rates of the response of the odd and the even dimer. The director distribution in a rapidly spinning nematic sample situated in a magnetic field is studied in Chapter 5 using field gradient EPR spectroscopy which gives added information about the spatial distribution of the director that is not available in conventional EPR studies. A simple model distribution function can be parameterised to give a good fit to all of the experimental spectra. In Chapter 6, the director distribution in an unusual smectic phase formed by several odd dimers is studied using EPR. Simultaneous fitting of several of the angular-dependent EPR spectra suggest that the experimental spectra are well fitted using a simple analytical function for the director distribution
Interview with Nicholas Christopher, author of Somewhere in the Night: Film Noir and the American City
No full textInterview with Nicholas Christopher, author of Somewhere in the Night: Film Noir and the American Cit
A review of Dendrocephalus (Dendrocephalinus) (Crustacea: Anostraca) with the first records of male-male anostracan aggressive competition
No full textRogers, D. Christopher, Dunn, Ann, Price, W. Wayne (2019): A review of Dendrocephalus (Dendrocephalinus) (Crustacea: Anostraca) with the first records of male-male anostracan aggressive competition. European Journal of Taxonomy 509: 1-14, DOI: 10.5852/ejt.2019.50
Synthesis and characterisation of nanostructured BiFeO3 for photodecolourisation of azo dyes using visible light
No full textIn this work, effort is being made to synthesize a narrow band gap ferroelectric perovskite nanostructure semiconductor that is BiFeO3 (BFO). The BFO nanopowders were synthesized at 650ºC using a self-combustion method with glycine as the fuel. The effect of the different fuel concentrations, annealing temperatures and the duration of annealing are all demonstrated to influence the phase and crystallography of the synthesized nanoparticles. The author has demonstrated that the self-combustion process can be used to produce high purity BFO nanopowders which exhibit good absorption in the visible-light regime as determined by the UV-Vis-NIR spectroscopy with a measured optical band gap of 2.22 eV. Cont/d
Matt Christopher Papers - Accession 1309
No full textThe collection includes letters written by the children’s book author, Matt Christopher, to his son, Marty Christopher. Many of the letters also contain newspaper articles of interest to Matt Christopher, which deal with local sports teams, his writing career, his participation in an exhibition baseball game against the New York Giants in 1938, and other of general interest. Most of the letters are personal in nature, however, a majority of the letters delve into Matt Christopher’s writing career, personal interests, the author’s health, as well as his family life.https://digitalcommons.winthrop.edu/manuscriptcollection_findingaids/2649/thumbnail.jp
Matt Christopher Papers - Accession 1221
No full textMatt Christopher (1917-1997) was a prolific author of children’s books having written over 100 books as well as over 300 short stories, articles, poems, and screenplays. Most of his writings dealt with sports themes, but he also wrote fantasy and mystery themed stories as well. The Matt Christopher Papers consist of both published and unpublished manuscripts, articles, and short stories. Also included are personal and business correspondence, biographical information, scrapbooks, photographs, and memorabilia.https://digitalcommons.winthrop.edu/manuscriptcollection_findingaids/1976/thumbnail.jp
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